:root {
  --bg: #f4f3ee;
  --surface: #fffdf8;
  --surface-2: #edf4ef;
  --surface-3: #f6eee4;
  --ink: #16342f;
  --muted: #64756f;
  --line: #d9e1dc;
  --green: #174f45;
  --green-2: #2f7768;
  --green-soft: #dcebe5;
  --orange: #e47d4e;
  --orange-soft: #f7e5da;
  --yellow: #f3c65d;
  --blue: #4b7f9c;
  --blue-soft: #e3eef4;
  --purple: #786ea5;
  --danger: #b9534e;
  --success: #2d7a57;
  --shadow: 0 18px 48px rgba(26, 59, 52, .09);
  --shadow-sm: 0 8px 24px rgba(26, 59, 52, .07);
  --radius: 24px;
  --radius-sm: 16px;
  --sidebar: 252px;
  --header: 78px;
  --font-body: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Segoe UI", system-ui, sans-serif;
}

html[data-theme="dark"] {
  --bg: #0f1d1a;
  --surface: #172723;
  --surface-2: #1b302a;
  --surface-3: #2b2823;
  --ink: #f2f7f4;
  --muted: #a9b9b3;
  --line: #31453f;
  --green: #88c7b3;
  --green-2: #79bba6;
  --green-soft: #213c34;
  --orange: #f19a6d;
  --orange-soft: #432e25;
  --yellow: #f0cb70;
  --blue: #8ab8d0;
  --blue-soft: #203744;
  --purple: #aaa2d1;
  --danger: #ed8c85;
  --success: #78c99f;
  --shadow: 0 20px 55px rgba(0, 0, 0, .25);
  --shadow-sm: 0 10px 28px rgba(0, 0, 0, .2);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--ink); font-family: var(--font-body); line-height: 1.55; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; letter-spacing: -.03em; }
h1 { font-size: clamp(2rem, 3.8vw, 3.6rem); margin-bottom: 14px; }
h2 { font-size: clamp(1.25rem, 2vw, 1.75rem); margin-bottom: 10px; }
h3 { font-size: 1.12rem; margin-bottom: 8px; }
p { color: var(--muted); }
code { padding: 2px 6px; border-radius: 6px; background: var(--surface-2); }

.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; padding: 10px 16px; border-radius: 10px; background: var(--ink); color: var(--surface); text-decoration: none; transition: top .2s; }
.skip-link:focus { top: 16px; }
.sr-only { position: absolute!important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.app-shell { min-height: 100vh; }
.sidebar { position: fixed; inset: 0 auto 0 0; z-index: 100; width: var(--sidebar); display: flex; flex-direction: column; padding: 24px 18px; background: #123f38; color: #fff; box-shadow: 12px 0 40px rgba(12, 48, 42, .1); }
.brand { display: flex; align-items: center; gap: 12px; width: 100%; padding: 4px 8px 23px; border: 0; background: none; color: #fff; text-align: left; cursor: pointer; }
.brand-mark { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 15px; background: #f3c65d; color: #123f38; font-family: var(--font-display); font-weight: 800; letter-spacing: -.05em; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-family: var(--font-display); font-size: 1.08rem; }
.brand-copy small { color: #b8d3c9; }
.main-nav { display: grid; gap: 5px; }
.nav-item { display: flex; align-items: center; gap: 12px; width: 100%; padding: 11px 13px; border: 0; border-radius: 13px; background: transparent; color: #c8ddd5; text-align: left; cursor: pointer; transition: background .2s, color .2s, transform .2s; }
.nav-item:hover { background: rgba(255,255,255,.08); color: #fff; transform: translateX(2px); }
.nav-item.active { background: #fff; color: #123f38; box-shadow: 0 8px 22px rgba(0,0,0,.12); }
.nav-icon { display: grid; place-items: center; width: 22px; font-weight: 800; }
.sidebar-bottom { margin-top: auto; display: grid; gap: 12px; }
.sidebar-goal { padding: 14px; border: 1px solid rgba(255,255,255,.12); border-radius: 16px; background: rgba(255,255,255,.06); }
.sidebar-goal > div:first-child { display: flex; justify-content: space-between; gap: 8px; font-size: .78rem; color: #b8d3c9; }
.sidebar-goal strong { color: #fff; }
.goal-track { height: 7px; margin-top: 10px; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.15); }
.goal-track i { display: block; width: 0; height: 100%; border-radius: inherit; background: #f3c65d; transition: width .4s ease; }
.sidebar-action, .reference-link { display: flex; align-items: center; gap: 8px; padding: 9px 10px; border: 0; background: none; color: #b8d3c9; font-size: .83rem; text-decoration: none; cursor: pointer; }
.sidebar-action:hover, .reference-link:hover { color: #fff; }

.main-column { min-height: 100vh; margin-left: var(--sidebar); }
.topbar { position: sticky; top: 0; z-index: 50; height: var(--header); display: flex; align-items: center; gap: 18px; padding: 0 38px; border-bottom: 1px solid color-mix(in srgb, var(--line) 75%, transparent); background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(18px); }
.menu-button { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); cursor: pointer; }
.topbar-title { display: flex; flex-direction: column; line-height: 1.2; }
.topbar-title span { font-weight: 700; }
.topbar-title small { color: var(--muted); font-size: .72rem; }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.icon-button { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); cursor: pointer; }
.level-pill { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 30px; padding: 0 10px; border-radius: 999px; background: var(--orange-soft); color: var(--orange); font-weight: 800; font-size: .8rem; }
.streak { display: flex; align-items: center; gap: 8px; padding: 7px 11px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.streak div { display: flex; flex-direction: column; line-height: 1.05; }
.streak strong { font-size: .79rem; }
.streak small { color: var(--muted); font-size: .66rem; }
.avatar { width: 42px; height: 42px; border: 0; border-radius: 50%; background: var(--green); color: var(--surface); font-weight: 800; cursor: pointer; }

.content-wrap { width: min(1440px, 100%); margin: 0 auto; padding: 42px 46px 80px; }
.page { display: none; animation: page-in .28s ease; }
.page.active { display: block; }
@keyframes page-in { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: none; } }
.welcome-row, .page-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; margin-bottom: 28px; }
.welcome-row > div:first-child, .page-heading > div:first-child { max-width: 760px; }
.welcome-row p, .page-heading p { max-width: 680px; font-size: 1.03rem; }
.kicker { display: inline-block; margin-bottom: 8px; color: var(--green-2); font-size: .72rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.day-score { flex: 0 0 auto; display: flex; align-items: center; gap: 12px; padding: 15px 20px; border-radius: 18px; background: var(--green); color: var(--surface); box-shadow: var(--shadow-sm); }
.day-score strong { font-family: var(--font-display); font-size: 2rem; line-height: 1; }
.day-score span { max-width: 70px; font-size: .75rem; line-height: 1.2; opacity: .8; }

.card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.method-strip { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 10px; margin-bottom: 24px; padding: 16px 20px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.method-strip > div { display: flex; align-items: center; gap: 11px; }
.method-strip b { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; background: var(--green-soft); color: var(--green-2); }
.method-strip span { display: flex; flex-direction: column; }
.method-strip small { color: var(--muted); }
.method-strip > i { color: var(--line); font-style: normal; }
.dashboard-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(260px, .8fr); gap: 20px; }
.daily-card { grid-row: span 2; display: grid; grid-template-columns: 46% 54%; min-height: 430px; padding: 0; overflow: hidden; text-align: left; cursor: pointer; transition: transform .25s, box-shadow .25s; }
.daily-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.daily-image { min-height: 100%; background: var(--surface-3); }
.daily-image img { width: 100%; height: 100%; object-fit: cover; }
.daily-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(28px, 4vw, 50px); }
.daily-copy h2 { max-width: 450px; font-size: clamp(1.8rem, 3vw, 2.75rem); }
.daily-copy p { font-size: 1.02rem; }
.eyebrow { margin-bottom: 17px; color: var(--muted); font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.eyebrow span { margin-right: 6px; padding: 5px 8px; border-radius: 7px; background: var(--orange-soft); color: var(--orange); }
.start-link { margin-top: auto; padding-top: 22px; color: var(--green-2); font-weight: 800; }
.plan-card, .voice-card { padding: 22px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 18px; }
.section-heading.compact { margin-bottom: 12px; }
.section-heading h2 { margin-bottom: 0; }
.plan-total { padding: 5px 9px; border-radius: 999px; background: var(--green-soft); color: var(--green-2); font-size: .72rem; font-weight: 800; }
.daily-plan { display: grid; gap: 4px; }
.plan-item { display: grid; grid-template-columns: 28px 1fr auto; align-items: center; gap: 10px; padding: 10px 7px; border: 0; border-radius: 12px; background: transparent; text-align: left; cursor: pointer; }
.plan-item:hover { background: var(--surface-2); }
.plan-item b { display: grid; place-items: center; width: 26px; height: 26px; border: 1px solid var(--line); border-radius: 8px; color: var(--green-2); font-size: .72rem; }
.plan-item small { color: var(--muted); }
.voice-card { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--green) 0%, #246c5d 100%); color: #fff; }
.voice-card .kicker, .voice-card p, .voice-card small { color: #cce2da; }
.voice-card .sound-button { border-color: rgba(255,255,255,.2); background: #fff; color: #174f45; }
.voice-card .sound-button.secondary { background: rgba(255,255,255,.12); color: #fff; }
.voice-visual { position: absolute; right: 18px; top: 12px; display: flex; align-items: center; gap: 4px; height: 44px; opacity: .28; }
.voice-visual span { width: 5px; border-radius: 999px; background: #fff; animation: wave 1.1s infinite ease-in-out; }
.voice-visual span:nth-child(1), .voice-visual span:nth-child(5) { height: 15px; }
.voice-visual span:nth-child(2), .voice-visual span:nth-child(4) { height: 30px; animation-delay: .12s; }
.voice-visual span:nth-child(3) { height: 42px; animation-delay: .24s; }
@keyframes wave { 50% { transform: scaleY(.55); } }
.button-row, .audio-actions, .exercise-actions { display: flex; flex-wrap: wrap; gap: 9px; }
.voice-status { display: block; margin-top: 12px; }
.section-block { margin-top: 36px; }
.text-button { padding: 4px 0; border: 0; background: none; color: var(--green-2); font-weight: 700; cursor: pointer; }
.text-button:hover { text-decoration: underline; }

/* Home: compact level cards and accessibility summary.
   These selectors are intentionally kept next to the other home-page
   components so the cards cannot silently fall back to native buttons. */
.quick-level-section { margin-top: 36px; }
.quick-level-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}
.quick-level-card {
  appearance: none;
  position: relative;
  display: grid;
  grid-template-rows: auto auto minmax(38px, auto) auto auto;
  align-content: start;
  min-width: 0;
  min-height: 174px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  text-align: left;
  cursor: pointer;
  transition: transform .18s, border-color .18s, box-shadow .18s, background .18s;
}
.quick-level-card:hover,
.quick-level-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--green-2);
  box-shadow: var(--shadow);
}
.quick-level-card.current {
  border-color: color-mix(in srgb, var(--green-2) 72%, var(--line));
  background: linear-gradient(145deg, var(--green-soft), var(--surface));
}
.quick-level-code {
  display: block;
  color: var(--green);
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3vw, 2.55rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.04em;
}
.quick-level-card strong {
  display: block;
  margin-top: 8px;
  font-size: .92rem;
}
.quick-level-card small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: .75rem;
  line-height: 1.35;
}
.quick-level-card i {
  display: block;
  height: 7px;
  margin-top: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--line);
  font-style: normal;
}
.quick-level-card i b {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--green-2);
}
.quick-level-card em {
  display: block;
  margin-top: 7px;
  color: var(--ink);
  font-size: .72rem;
  font-style: normal;
  font-weight: 800;
}

.accessibility-summary {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.accessibility-summary > div {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 11px;
  min-width: 0;
  padding: 17px 16px;
  border-right: 1px solid var(--line);
}
.accessibility-summary > div:last-child { border-right: 0; }
.accessibility-summary > div > span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: var(--green-soft);
  color: var(--green-2);
  font-weight: 900;
}
.accessibility-summary p { min-width: 0; margin: 0; }
.accessibility-summary strong { display: block; color: var(--ink); font-size: .78rem; }
.accessibility-summary small { display: block; margin-top: 2px; color: var(--muted); font-size: .68rem; line-height: 1.35; }

/* V18 verb-detail additions: keep definition audio and examples visually
   attached to their meaning instead of looking like loose body text. */
.verb-definition-line {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 15px;
}
.verb-definition-line p { max-width: 760px; margin: 0; }
.verb-definition-line .mini-audio { flex: 0 0 auto; }
.verb-example-list { display: grid; gap: 8px; margin-top: 12px; }
.verb-example-list p {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--blue) 18%, var(--line));
  border-radius: 11px;
  background: color-mix(in srgb, var(--surface) 74%, transparent);
}
.verb-example-list .mini-audio { flex: 0 0 auto; }
.verb-perfect-note {
  margin: 0;
  padding: 13px 14px;
  border: 1px dashed var(--line);
  border-radius: 12px;
  background: var(--surface-2);
}
.verb-review-status {
  display: grid;
  gap: 4px;
  max-width: 760px;
  margin-top: 10px;
  padding: 12px 14px;
  border: 1px dashed color-mix(in srgb, var(--orange) 70%, var(--line));
  border-radius: 12px;
  background: var(--orange-soft);
}
.verb-review-status strong { color: var(--ink); }
.verb-review-status span { color: var(--muted); font-size: .84rem; line-height: 1.45; }
.verb-semantic-note.reviewed { border-left-color: var(--blue); }
.verb-semantic-note.unreviewed {
  border-left-color: var(--orange);
  background: color-mix(in srgb, var(--orange-soft) 68%, var(--surface));
}
.verb-semantic-note .section-heading.compact { align-items: center; }
.verb-semantic-note .section-heading.compact span {
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: .68rem;
  font-weight: 800;
  white-space: nowrap;
}
.vocabulary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.word-card { overflow: hidden; transition: transform .2s, box-shadow .2s; }
.word-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.word-card img { width: 100%; aspect-ratio: 1.55 / 1; object-fit: cover; background: var(--surface-2); }
.word-card-body { padding: 20px; }
.word-card h3 { font-size: 1.35rem; }
.word-card p { min-height: 48px; margin-bottom: 11px; }
.word-example { display: block; min-height: 42px; margin-bottom: 14px; color: var(--ink); font-size: .86rem; }
.word-type { display: inline-flex; margin-bottom: 8px; padding: 4px 8px; border-radius: 999px; background: var(--blue-soft); color: var(--blue); font-size: .67rem; font-weight: 800; text-transform: uppercase; }
.sound-button, .primary-button, .secondary-button { min-height: 40px; padding: 9px 14px; border-radius: 12px; font-weight: 700; cursor: pointer; transition: transform .16s, opacity .16s, background .16s; }
.sound-button { border: 1px solid var(--line); background: var(--surface-2); color: var(--green-2); }
.sound-button.secondary { background: transparent; }
.primary-button { border: 1px solid var(--green); background: var(--green); color: var(--surface); }
.secondary-button { border: 1px solid var(--line); background: var(--surface); color: var(--ink); }
.sound-button:hover, .primary-button:hover, .secondary-button:hover { transform: translateY(-1px); }
button:disabled { cursor: not-allowed; opacity: .45; transform: none!important; }
.two-up { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; }
.weekly-card, .focus-card { padding: 24px; }
.week-chart { height: 118px; display: flex; align-items: end; justify-content: space-between; gap: 12px; padding-top: 10px; }
.week-chart div { flex: 1; height: 100%; display: flex; flex-direction: column; justify-content: end; align-items: center; gap: 7px; }
.week-chart i { display: block; width: min(26px, 80%); min-height: 8px; border-radius: 8px 8px 3px 3px; background: var(--green-2); }
.week-chart i.empty { background: var(--line); }
.week-chart small { color: var(--muted); font-size: .7rem; }
.focus-card { background: var(--orange-soft); }

.back-button { margin-bottom: 18px; padding: 0; border: 0; background: none; color: var(--green-2); font-weight: 700; cursor: pointer; }
.lesson-hero { display: grid; grid-template-columns: 1.05fr .95fr; overflow: hidden; }
.lesson-copy { align-self: center; padding: clamp(28px, 5vw, 58px); }
.lead { font-size: 1.08rem; }
.lesson-image { margin: 0; background: var(--surface-3); }
.lesson-image img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; }
.image-labels { position: relative; z-index: 2; display: flex; justify-content: center; flex-wrap: wrap; gap: 7px; margin-top: -58px; padding: 0 16px 18px; }
.image-labels button { padding: 7px 11px; border: 1px solid rgba(255,255,255,.45); border-radius: 999px; background: rgba(18,63,56,.9); color: #fff; backdrop-filter: blur(8px); cursor: pointer; }
.phrase-box { margin-top: 26px; padding: 18px; border-radius: 18px; background: var(--surface-2); }
.phrase-box > div:first-child { display: flex; flex-direction: column; margin-bottom: 13px; }
.phrase-box small { color: var(--muted); }
.phrase-box strong { font-family: var(--font-display); font-size: 1.35rem; }
.learning-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 20px 0; }
.learning-flow article { display: flex; align-items: center; gap: 12px; padding: 16px; }
.learning-flow b { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; background: var(--green-soft); color: var(--green-2); }
.learning-flow div { display: flex; flex-direction: column; }
.learning-flow span { color: var(--muted); font-size: .78rem; }
.lesson-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 20px; }
.panel { padding: 28px; }
.icon-sound { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-2); cursor: pointer; }
.inline-term { padding: 1px 5px; border: 0; border-bottom: 2px dotted var(--green-2); background: none; color: var(--green-2); font-weight: 700; cursor: pointer; }
.sentence-model { display: flex; align-items: center; gap: 9px; margin: 24px 0; overflow-x: auto; padding-bottom: 6px; }
.slot { flex: 1 0 125px; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-2); }
.slot small, .slot span { display: block; color: var(--muted); font-size: .68rem; }
.slot strong { display: block; margin: 3px 0; font-size: 1.08rem; }
.slot.verb { border-color: var(--orange); background: var(--orange-soft); }
.slot.first { border-color: var(--blue); background: var(--blue-soft); }
.model-arrow { color: var(--muted); }
.compare-box { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.compare-box div { padding: 15px; border-radius: 14px; background: var(--bg); }
.compare-box span { display: block; margin-bottom: 5px; color: var(--muted); font-size: .72rem; }
mark { padding: 1px 4px; border-radius: 5px; background: var(--orange-soft); color: var(--orange); }
.connection-panel { display: flex; flex-direction: column; }
.connection-panel button { display: flex; flex-direction: column; gap: 2px; padding: 14px 0; border: 0; border-bottom: 1px solid var(--line); background: none; text-align: left; cursor: pointer; }
.connection-panel button:last-child { border-bottom: 0; }
.connection-panel button:hover strong { color: var(--green-2); }
.connection-panel span { color: var(--muted); font-size: .78rem; }
.exercise-card { margin-top: 20px; padding: 28px; }
.exercise-intro { max-width: 650px; }
.answer-zone { min-height: 78px; display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin: 22px 0 12px; padding: 16px; border: 2px dashed var(--line); border-radius: 17px; background: var(--bg); }
.answer-zone.correct { border-color: var(--success); background: color-mix(in srgb, var(--success) 10%, var(--surface)); }
.answer-zone.wrong { border-color: var(--danger); background: color-mix(in srgb, var(--danger) 9%, var(--surface)); }
.answer-zone .placeholder { color: var(--muted); }
.answer-zone button, .word-bank button { padding: 10px 14px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); font-weight: 700; cursor: pointer; }
.answer-zone button { border-color: var(--green-2); background: var(--green-soft); }
.word-bank { display: flex; flex-wrap: wrap; gap: 9px; min-height: 46px; }
.feedback { min-height: 24px; margin: 14px 0; font-weight: 700; }

.legend { display: flex; gap: 15px; flex-wrap: wrap; color: var(--muted); font-size: .76rem; }
.legend span { display: flex; align-items: center; gap: 5px; }
.legend i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.legend i.done { background: var(--success); }
.legend i.current { background: var(--orange); }
.level-path { display: grid; gap: 18px; }
.level-card { position: relative; display: grid; grid-template-columns: 90px minmax(0, 1fr) 220px; align-items: center; gap: 24px; padding: 25px; overflow: hidden; }
.level-card::before { content: ""; position: absolute; left: 43px; top: -24px; width: 3px; height: 25px; background: var(--line); }
.level-card:first-child::before { display: none; }
.level-badge { display: grid; place-items: center; width: 65px; height: 65px; border-radius: 21px; background: var(--surface-2); color: var(--green-2); font-family: var(--font-display); font-size: 1.4rem; font-weight: 800; }
.level-card.current { border-color: var(--orange); }
.level-card.current .level-badge { background: var(--orange-soft); color: var(--orange); }
.level-card.done .level-badge { background: color-mix(in srgb, var(--success) 15%, var(--surface)); color: var(--success); }
.level-card p { margin-bottom: 10px; }
.module-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.module-tags span, .concept-tags span { padding: 5px 9px; border-radius: 999px; background: var(--bg); color: var(--muted); font-size: .7rem; }
.level-progress strong { display: block; margin-bottom: 7px; text-align: right; }
.meter { height: 8px; overflow: hidden; border-radius: 999px; background: var(--line); }
.meter i { display: block; height: 100%; border-radius: inherit; background: var(--green-2); }

.concept-hero { display: grid; grid-template-columns: 1.35fr .65fr; align-items: center; overflow: hidden; margin-bottom: 20px; }
.concept-hero img { width: 100%; max-height: 520px; object-fit: contain; background: #f7f4ec; }
.concept-hero > div { padding: 36px; }
.concept-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.concept-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.concept-card { padding: 22px; text-align: left; cursor: pointer; transition: transform .2s, border-color .2s; }
.concept-card:hover, .concept-card.active { transform: translateY(-2px); border-color: var(--green-2); }
.concept-card-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 16px; border-radius: 13px; background: var(--green-soft); color: var(--green-2); font-weight: 800; }
.concept-card p { min-height: 50px; }
.concept-card small { color: var(--green-2); font-weight: 700; }
.concept-detail { margin-top: 18px; padding: 28px; }
.concept-detail-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 28px; }
.concept-children { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.concept-children button { padding: 13px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-2); text-align: left; cursor: pointer; }

.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.filter-row button, .practice-tabs button { padding: 8px 13px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); cursor: pointer; }
.filter-row button.active, .practice-tabs button.active { border-color: var(--green); background: var(--green); color: var(--surface); }
.library-layout { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 20px; }
.topic-list { display: grid; align-content: start; gap: 9px; }
.topic-button { width: 100%; padding: 16px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); text-align: left; cursor: pointer; }
.topic-button:hover, .topic-button.active { border-color: var(--green-2); background: var(--green-soft); }
.topic-button small { display: inline-block; margin-bottom: 4px; color: var(--orange); font-weight: 800; }
.topic-button strong { display: block; }
.topic-detail { min-height: 480px; padding: 32px; }
.rule-box { margin: 20px 0; padding: 20px; border-left: 5px solid var(--orange); border-radius: 0 15px 15px 0; background: var(--orange-soft); }
.rule-box small { display: block; color: var(--orange); font-weight: 800; text-transform: uppercase; }
.rule-box strong { font-size: 1.13rem; }
.example-list { display: grid; gap: 9px; padding: 0; list-style: none; }
.example-list li { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 14px; border-radius: 12px; background: var(--bg); }
.example-list button { flex: 0 0 auto; width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); cursor: pointer; }
.connection-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.connection-tags span { padding: 6px 10px; border-radius: 999px; background: var(--blue-soft); color: var(--blue); font-size: .75rem; }

.verb-layout { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 20px; }
.verb-picker, .verb-detail { padding: 28px; }
.verb-picker { align-self: start; position: sticky; top: calc(var(--header) + 20px); }
.verb-picker label { display: block; margin-bottom: 8px; font-weight: 800; }
select, input[type="search"] { width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); outline: none; }
select:focus, input:focus { border-color: var(--green-2); box-shadow: 0 0 0 3px color-mix(in srgb, var(--green-2) 15%, transparent); }
.verb-meaning { margin: 18px 0; padding: 15px; border-radius: 14px; background: var(--surface-2); }
.verb-tenses { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; margin: 22px 0; }
.tense-card { padding: 16px; border-radius: 15px; background: var(--bg); }
.tense-card h3 { font-size: 1rem; }
.tense-card ul { margin: 0; padding-left: 18px; color: var(--muted); }
.verb-perfect { padding: 17px; border-radius: 15px; background: var(--green-soft); }
.search-wrap { width: min(320px, 100%); }

.notice-card { display: flex; gap: 13px; margin-bottom: 20px; padding: 17px 20px; border: 1px solid color-mix(in srgb, var(--success) 45%, var(--line)); border-radius: 16px; background: color-mix(in srgb, var(--success) 9%, var(--surface)); }
.notice-card > span { display: grid; place-items: center; flex: 0 0 30px; height: 30px; border-radius: 50%; background: var(--success); color: var(--surface); font-weight: 800; }
.notice-card p { margin: 3px 0 0; }
.listening-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.listening-card { overflow: hidden; }
.listening-card img { width: 100%; aspect-ratio: 1.5 / 1; object-fit: cover; }
.listening-body { padding: 21px; }
.listening-controls { display: flex; flex-wrap: wrap; gap: 8px; margin: 15px 0; }
details { border-top: 1px solid var(--line); padding-top: 11px; }
summary { cursor: pointer; font-weight: 700; }
.comprehension { margin-top: 15px; padding: 14px; border-radius: 13px; background: var(--bg); }
.comprehension strong { display: block; margin-bottom: 8px; }
.option-list { display: grid; gap: 6px; }
.option-list button { padding: 9px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); text-align: left; cursor: pointer; }
.option-list button.correct { border-color: var(--success); background: color-mix(in srgb, var(--success) 12%, var(--surface)); }
.option-list button.wrong { border-color: var(--danger); }

.practice-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.practice-stage { min-height: 420px; padding: clamp(24px, 5vw, 48px); }
.practice-question { max-width: 760px; margin: 0 auto; text-align: center; }
.practice-question .visual-prompt { width: min(280px, 100%); margin: 0 auto 20px; border-radius: 20px; }
.practice-choices { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin: 24px 0; }
.practice-choices button { min-width: 120px; padding: 14px 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-2); font-weight: 800; cursor: pointer; }
.practice-choices button.correct { border-color: var(--success); background: color-mix(in srgb, var(--success) 14%, var(--surface)); }
.practice-choices button.wrong { border-color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--surface)); }
.practice-order-zone { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; min-height: 58px; margin: 20px 0; padding: 13px; border: 2px dashed var(--line); border-radius: 15px; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-card { padding: 23px; }
.stat-card span, .stat-card small { display: block; color: var(--muted); }
.stat-card strong { display: block; margin: 8px 0 2px; font-family: var(--font-display); font-size: 2.25rem; }
.progress-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; margin-top: 20px; }
.skill-panel, .next-panel { padding: 28px; }
.skill-row { margin: 18px 0; }
.skill-row > div:first-child { display: flex; justify-content: space-between; margin-bottom: 7px; }
.next-panel { background: var(--green); color: var(--surface); }
.next-panel .kicker, .next-panel p { color: color-mix(in srgb, var(--surface) 76%, transparent); }
.next-panel .primary-button { border-color: var(--surface); background: var(--surface); color: #174f45; }

.settings-dialog { width: min(520px, calc(100% - 28px)); padding: 0; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }
.settings-dialog::backdrop { background: rgba(8, 28, 24, .58); backdrop-filter: blur(5px); }
.settings-dialog form { padding: 28px; }
.dialog-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.settings-dialog fieldset { margin: 18px 0; padding: 18px; border: 1px solid var(--line); border-radius: 16px; }
.settings-dialog legend { padding: 0 6px; font-weight: 800; }
.setting-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.setting-row span { display: flex; flex-direction: column; }
.setting-row small, .setting-help { color: var(--muted); }
input[role="switch"] { width: 44px; height: 24px; accent-color: var(--green-2); }
input[type="range"] { width: 100%; accent-color: var(--green-2); }
.dialog-actions { display: flex; justify-content: flex-end; }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 300; max-width: 360px; padding: 13px 17px; border-radius: 13px; background: var(--ink); color: var(--surface); box-shadow: var(--shadow); opacity: 0; transform: translateY(12px); pointer-events: none; transition: opacity .2s, transform .2s; }
.toast.show { opacity: 1; transform: none; }
.noscript { position: fixed; inset: auto 16px 16px; z-index: 500; padding: 14px; border-radius: 12px; background: #8f2f2a; color: #fff; }

@media (max-width: 1180px) {
  :root { --sidebar: 224px; }
  .content-wrap { padding-inline: 30px; }
  .daily-card { grid-template-columns: 1fr; }
  .daily-image { max-height: 280px; }
  .daily-copy { min-height: 310px; }
  .quick-level-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .accessibility-summary { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .accessibility-summary > div:nth-child(3) { border-right: 0; }
  .accessibility-summary > div:nth-child(n+4) { border-top: 1px solid var(--line); }
  .accessibility-summary > div:nth-child(4) { border-right: 1px solid var(--line); }
  .concept-grid { grid-template-columns: repeat(2, 1fr); }
  .listening-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .sidebar { transform: translateX(-105%); transition: transform .25s ease; }
  .sidebar.open { transform: none; }
  .main-column { margin-left: 0; }
  .menu-button { display: grid; place-items: center; }
  .topbar { padding-inline: 18px; }
  .content-wrap { padding: 28px 18px 64px; }
  .dashboard-grid, .lesson-hero, .lesson-layout, .concept-hero, .library-layout, .verb-layout, .progress-layout { grid-template-columns: 1fr; }
  .daily-card { grid-row: auto; }
  .lesson-image { order: -1; }
  .lesson-image img { min-height: 300px; }
  .connection-panel { display: grid; grid-template-columns: 1fr 1fr; }
  .connection-panel .kicker, .connection-panel h2 { grid-column: 1 / -1; }
  .verb-picker { position: static; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .level-card { grid-template-columns: 72px 1fr; }
  .level-progress { grid-column: 2; }
  .method-strip { grid-template-columns: 1fr 1fr; }
  .method-strip > i { display: none; }
}

@media (max-width: 680px) {
  .topbar-title small, .streak, .level-pill { display: none; }
  .welcome-row, .page-heading { flex-direction: column; }
  .day-score { align-self: stretch; justify-content: center; }
  .method-strip, .learning-flow, .vocabulary-grid, .compact-grid, .two-up, .concept-grid, .listening-grid, .stat-grid { grid-template-columns: 1fr; }
  .quick-level-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .quick-level-card { min-height: 164px; padding: 16px; }
  .accessibility-summary { grid-template-columns: 1fr; }
  .accessibility-summary > div,
  .accessibility-summary > div:nth-child(3),
  .accessibility-summary > div:nth-child(4) {
    border-right: 0;
    border-top: 1px solid var(--line);
  }
  .accessibility-summary > div:first-child { border-top: 0; }
  .verb-definition-line { flex-direction: column; }
  .method-strip { gap: 8px; }
  .daily-card { min-height: 0; }
  .daily-image { max-height: none; }
  .daily-copy { min-height: 290px; padding: 26px; }
  .daily-copy h2 { font-size: 1.8rem; }
  .learning-flow { gap: 8px; }
  .sentence-model { align-items: stretch; flex-direction: column; }
  .model-arrow { transform: rotate(90deg); align-self: center; }
  .slot { width: 100%; flex-basis: auto; }
  .compare-box, .concept-detail-grid, .concept-children, .verb-tenses, .connection-panel { grid-template-columns: 1fr; }
  .level-card { grid-template-columns: 58px 1fr; gap: 14px; padding: 18px; }
  .level-badge { width: 52px; height: 52px; border-radius: 16px; }
  .level-progress { grid-column: 1 / -1; }
  .search-wrap { width: 100%; }
  .topbar-actions { gap: 7px; }
  .avatar, .icon-button { width: 38px; height: 38px; }
}

@media (max-width: 440px) {
  .quick-level-grid { grid-template-columns: 1fr; }
  .quick-level-card { min-height: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto!important; animation-duration: .01ms!important; animation-iteration-count: 1!important; transition-duration: .01ms!important; }
}

/* A1 complete course */
.a1-promo { margin-top: 38px; }
.a1-promo-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.a1-feature { display: grid; grid-template-columns: 42% 58%; min-height: 190px; padding: 0; overflow: hidden; text-align: left; cursor: pointer; transition: transform .22s, box-shadow .22s, border-color .22s; }
.a1-feature:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--green-2) 35%, var(--line)); }
.a1-feature img { width: 100%; height: 100%; object-fit: cover; background: var(--surface-2); }
.a1-feature > div { align-self: center; padding: 20px; }
.a1-feature h3 { margin-bottom: 7px; font-size: 1.4rem; }
.a1-feature p { margin: 0; font-size: .87rem; }
.a1-heading { align-items: center; }
.a1-summary { display: grid; grid-template-columns: auto auto; gap: 2px 10px; min-width: 180px; padding: 18px 22px; border-radius: 20px; background: var(--green); color: #fff; }
.a1-summary strong { font-family: var(--font-display); font-size: 2rem; line-height: 1; }
.a1-summary span { align-self: center; color: #cce2da; font-size: .78rem; }
.a1-layout { display: grid; grid-template-columns: 290px minmax(0, 1fr); align-items: start; gap: 20px; }
.a1-theme-grid { position: sticky; top: 92px; display: grid; gap: 10px; max-height: calc(100vh - 120px); padding-right: 4px; overflow-y: auto; }
.a1-theme-card { position: relative; display: grid; grid-template-columns: 82px 1fr; align-items: center; min-height: 92px; padding: 0; overflow: hidden; text-align: left; cursor: pointer; transition: transform .18s, border-color .18s, box-shadow .18s; }
.a1-theme-card:hover { transform: translateX(3px); box-shadow: var(--shadow-sm); }
.a1-theme-card.active { border-color: var(--green-2); box-shadow: 0 0 0 2px var(--green-soft); }
.a1-theme-card.done { border-color: #75a88f; }
.a1-theme-card img { width: 82px; height: 100%; min-height: 92px; object-fit: cover; }
.a1-theme-card > div { padding: 13px 13px 13px 16px; }
.a1-theme-card small { color: var(--green-2); font-weight: 800; }
.a1-theme-card h2 { margin: 2px 0; font-size: 1.08rem; }
.a1-theme-card p { margin: 0; font-size: .74rem; }
.a1-theme-number { position: absolute; left: 64px; top: 8px; display: grid; place-items: center; width: 28px; height: 28px; border: 3px solid var(--surface); border-radius: 50%; background: var(--orange); color: #fff; font-size: .7rem; font-weight: 900; }
.a1-theme-card.done .a1-theme-number { background: var(--green-2); }
.a1-theme-detail { overflow: hidden; }
.a1-detail-hero { display: grid; grid-template-columns: minmax(260px, .8fr) minmax(0, 1.2fr); min-height: 350px; background: var(--surface-2); }
.a1-detail-hero > img { width: 100%; height: 100%; min-height: 350px; object-fit: cover; }
.a1-detail-hero > div { align-self: center; padding: clamp(28px, 5vw, 54px); }
.a1-detail-body { display: grid; gap: 34px; padding: clamp(24px, 4vw, 46px); }
.a1-can-do { padding: 24px; border-radius: 18px; background: var(--green-soft); }
.a1-can-do ul { display: grid; gap: 10px; margin: 14px 0 0; padding: 0; list-style: none; }
.a1-can-do li { position: relative; padding-left: 30px; color: var(--ink); }
.a1-can-do li::before { content: '✓'; position: absolute; left: 0; top: -2px; display: grid; place-items: center; width: 21px; height: 21px; border-radius: 50%; background: var(--green-2); color: #fff; font-size: .68rem; font-weight: 900; }
.a1-word-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.a1-word-grid article { display: flex; flex-direction: column; min-height: 184px; padding: 17px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface-2); }
.a1-word-grid strong { font-family: var(--font-display); font-size: 1.14rem; }
.a1-word-grid p { margin: 8px 0; font-size: .82rem; }
.a1-word-grid small { display: block; margin-top: auto; color: var(--ink); font-size: .74rem; font-style: italic; }
.a1-word-grid article > div { display: flex; gap: 7px; margin-top: 13px; }
.a1-word-grid button, .a1-dialogue button { padding: 6px 9px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--green-2); cursor: pointer; }
.a1-grammar-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.a1-grammar-grid article { padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.a1-grammar-grid strong { font-size: 1rem; }
.a1-grammar-grid p { min-height: 54px; margin: 8px 0 12px; font-size: .82rem; }
.a1-sound-panel { display: grid; grid-template-columns: 1fr 1.2fr; gap: 24px; padding: 26px; border-radius: 20px; background: linear-gradient(135deg, var(--green) 0%, #246c5d 100%); color: #fff; }
.a1-sound-panel .kicker, .a1-sound-panel p { color: #cce2da; }
.pronunciation-chips { display: flex; align-content: center; align-items: center; flex-wrap: wrap; gap: 9px; }
.pronunciation-chips button { min-height: 42px; padding: 9px 14px; border: 1px solid rgba(255,255,255,.24); border-radius: 999px; background: rgba(255,255,255,.12); color: #fff; cursor: pointer; }
.a1-dialogue > div { display: grid; gap: 8px; margin-top: 14px; }
.a1-dialogue p { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 12px; margin: 0; padding: 12px 14px; border-radius: 14px; background: var(--surface-2); }
.a1-dialogue b { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 10px; background: var(--orange-soft); color: var(--orange); }
.a1-mini-test { padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface-2); }
.a1-mini-test .option-list { margin-top: 16px; }
.a1-complete-button { width: 100%; min-height: 50px; }

@media (max-width: 1050px) {
  .a1-promo-grid { grid-template-columns: 1fr; }
  .a1-feature { grid-template-columns: 220px 1fr; }
  .a1-layout { grid-template-columns: 1fr; }
  .a1-theme-grid { position: static; grid-template-columns: repeat(4, minmax(0, 1fr)); max-height: none; overflow: visible; }
  .a1-theme-card { grid-template-columns: 1fr; }
  .a1-theme-card img { width: 100%; height: 115px; }
  .a1-theme-number { left: 12px; top: 96px; }
  .a1-word-grid, .a1-grammar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .a1-summary { display: none; }
  .a1-theme-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .a1-detail-hero { grid-template-columns: 1fr; }
  .a1-detail-hero > img { min-height: 230px; max-height: 280px; }
  .a1-word-grid, .a1-grammar-grid, .a1-sound-panel { grid-template-columns: 1fr; }
  .a1-feature { grid-template-columns: 120px 1fr; min-height: 155px; }
}

@media (max-width: 440px) {
  .a1-theme-grid { grid-template-columns: 1fr; }
  .a1-theme-card { grid-template-columns: 96px 1fr; }
  .a1-theme-card img { width: 96px; height: 100%; min-height: 100px; }
  .a1-theme-number { left: 78px; top: 8px; }
  .a1-feature { grid-template-columns: 1fr; }
  .a1-feature img { height: 170px; }
  .a1-dialogue p { grid-template-columns: 30px 1fr; }
  .a1-dialogue p button { grid-column: 2; justify-self: start; }
}

/* Expanded A1/A2 curriculum */
.main-nav { min-height: 0; overflow-y: auto; padding-right: 3px; }
.a2-summary { background: linear-gradient(135deg, var(--blue), var(--purple)); }
.a2-promo { padding-top: 4px; }
.curriculum-note { margin: 0 0 22px; }
.course-detail-hero.level-a2 { background: var(--blue-soft); }
.course-metrics { display: flex; flex-wrap: wrap; gap: 9px; margin: 18px 0; }
.course-metrics span { display: inline-flex; align-items: baseline; gap: 5px; padding: 8px 11px; border: 1px solid color-mix(in srgb, var(--green-2) 25%, var(--line)); border-radius: 999px; background: color-mix(in srgb, var(--surface) 82%, transparent); color: var(--muted); font-size: .75rem; }
.course-metrics strong { color: var(--ink); font-size: .95rem; }
.full-word-bank { padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: color-mix(in srgb, var(--surface-2) 70%, var(--surface)); }
.word-bank-intro { margin: -2px 0 18px; }
.theme-word-group { margin-top: 10px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); overflow: hidden; }
.theme-word-group summary { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 15px 17px; cursor: pointer; font-weight: 800; list-style: none; }
.theme-word-group summary::-webkit-details-marker { display: none; }
.theme-word-group summary::before { content: '+'; display: grid; place-items: center; flex: 0 0 25px; width: 25px; height: 25px; border-radius: 8px; background: var(--green-soft); color: var(--green-2); }
.theme-word-group[open] summary::before { content: '−'; }
.theme-word-group summary span { margin-right: auto; }
.theme-word-group summary strong { color: var(--muted); font-size: .75rem; }
.theme-word-chip-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; padding: 0 14px 15px; }
.theme-word-chip { display: flex; justify-content: space-between; align-items: center; gap: 8px; min-height: 46px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface-2); text-align: left; cursor: pointer; transition: border-color .18s, transform .18s, background .18s; }
.theme-word-chip:hover { border-color: var(--green-2); background: var(--green-soft); transform: translateY(-1px); }
.theme-word-chip span { overflow-wrap: anywhere; font-size: .82rem; font-weight: 700; }
.theme-word-chip small { flex: 0 0 auto; color: var(--green-2); font-size: .64rem; }
.course-theme-card small { letter-spacing: .01em; }

@media (max-width: 1180px) {
  .theme-word-chip-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .theme-word-chip-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .full-word-bank { padding: 17px; }
}
@media (max-width: 440px) {
  .theme-word-chip-grid { grid-template-columns: 1fr; }
  .theme-word-group summary { padding: 13px; }
}

/* Deep grammar and language-structure library */
.structure-total,
.structure-metrics {
  display: flex;
  align-items: center;
  gap: .65rem;
  flex-wrap: wrap;
}

.structure-total {
  padding: 1rem 1.15rem;
  border-radius: 1rem;
  background: var(--surface-2, #eef4f1);
  border: 1px solid var(--border, #dbe5df);
}

.structure-total strong {
  font-size: 1.75rem;
  color: var(--primary, #123f38);
}

.structure-total span {
  max-width: 9rem;
  line-height: 1.2;
  color: var(--muted, #62726c);
}

.structure-tabs {
  display: flex;
  gap: .65rem;
  overflow-x: auto;
  padding: .2rem 0 .9rem;
  scrollbar-width: thin;
}

.structure-tabs button {
  border: 1px solid var(--border, #d6e0da);
  background: var(--surface, #fff);
  color: var(--text, #1d2e29);
  padding: .8rem 1rem;
  border-radius: 999px;
  font-weight: 750;
  white-space: nowrap;
  cursor: pointer;
}

.structure-tabs button.active {
  background: var(--primary, #123f38);
  border-color: var(--primary, #123f38);
  color: #fff;
}

.structure-overview {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.structure-overview h2 {
  margin: .35rem 0 .5rem;
}

.structure-overview p {
  max-width: 60rem;
  margin: 0;
}

.structure-metrics span {
  min-width: 7.4rem;
  padding: .75rem .85rem;
  border-radius: .9rem;
  background: var(--surface-2, #eef4f1);
  color: var(--muted, #62726c);
  text-align: center;
}

.structure-metrics strong {
  display: block;
  color: var(--primary, #123f38);
  font-size: 1.35rem;
}

.structure-content {
  display: grid;
  gap: 1.15rem;
}

.structure-group {
  background: var(--surface, #fff);
  border: 1px solid var(--border, #d9e3dd);
  border-radius: 1rem;
  overflow: hidden;
}

.structure-group > summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  font-weight: 800;
  list-style: none;
  background: var(--surface-2, #f3f7f5);
}

.structure-group > summary::-webkit-details-marker { display: none; }
.structure-group > summary::after { content: '＋'; color: var(--primary, #123f38); }
.structure-group[open] > summary::after { content: '−'; }
.structure-group > summary strong { color: var(--muted, #62726c); font-size: .9rem; }

.structure-card-grid,
.conjunction-grid,
.idiom-grid,
.verb-bank-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .9rem;
  padding: 1rem;
}

.structure-card,
.conjunction-grid article,
.idiom-grid article,
.verb-bank-grid article,
.featured-verb-card {
  border: 1px solid var(--border, #dce5df);
  border-radius: .95rem;
  padding: 1rem;
  background: var(--surface, #fff);
  box-shadow: 0 10px 24px rgba(31, 60, 50, .05);
}

.structure-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}

.structure-card-head strong,
.idiom-grid article > strong,
.verb-bank-grid article > strong {
  font-size: 1.05rem;
  color: var(--primary, #123f38);
}

.structure-card-head span,
.word-order-label {
  display: inline-flex;
  padding: .25rem .55rem;
  border-radius: 999px;
  background: var(--accent-soft, #f5eadc);
  color: var(--accent-dark, #845822);
  font-size: .78rem;
  font-weight: 750;
}

.structure-card p,
.idiom-grid p,
.verb-bank-grid span {
  color: var(--muted, #62726c);
}

.structure-card small {
  display: block;
  margin: .55rem 0;
  font-weight: 700;
}

.structure-card blockquote,
.conjunction-grid blockquote,
.idiom-grid blockquote {
  margin: .75rem 0;
  padding: .7rem .8rem;
  border-left: 3px solid var(--accent, #db7d2f);
  background: var(--surface-2, #f5f8f6);
  border-radius: 0 .65rem .65rem 0;
  font-style: normal;
}

.mini-audio {
  border: 0;
  background: transparent;
  color: var(--primary, #123f38);
  font-weight: 750;
  cursor: pointer;
  padding: .2rem 0;
}

.pattern-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  padding: 1rem;
}

.pattern-table article {
  display: grid;
  grid-template-columns: 1.05fr 1.45fr auto;
  align-items: center;
  gap: .8rem;
  border-bottom: 1px solid var(--border, #e0e7e3);
  padding: .8rem .2rem;
}

.pattern-table article div {
  display: grid;
  gap: .15rem;
}

.pattern-table article span,
.pattern-table article p {
  color: var(--muted, #62726c);
  margin: 0;
}

.featured-verb-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.sentence-position-list {
  display: grid;
  gap: .55rem;
  margin-top: .85rem;
}

.sentence-position-list > div {
  display: grid;
  grid-template-columns: 6rem 1fr auto;
  gap: .6rem;
  align-items: center;
  padding: .55rem .65rem;
  border-radius: .7rem;
  background: var(--surface-2, #f3f7f5);
}

.sentence-position-list small {
  text-transform: capitalize;
  color: var(--accent-dark, #845822);
  font-weight: 800;
}

.split-verb-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  flex-wrap: wrap;
  padding: 1.25rem;
  margin-bottom: 1rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, var(--surface-2, #eef5f1), var(--accent-soft, #f8ead9));
}

.split-verb-visual span,
.split-verb-visual strong {
  padding: .6rem .9rem;
  border-radius: .75rem;
  background: var(--surface, #fff);
  border: 1px solid var(--border, #d6e1da);
  font-size: 1.15rem;
}

.split-verb-visual small { flex-basis: 100%; text-align: center; color: var(--muted, #62726c); }

.verb-model-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
}

.verb-model-grid article {
  padding: .9rem;
  border: 1px solid var(--border, #dae4de);
  border-radius: .85rem;
  background: var(--surface-2, #f5f8f6);
}

.verb-model-grid article small {
  display: block;
  color: var(--accent-dark, #845822);
  font-weight: 800;
  margin-bottom: .35rem;
}

.grammar-section-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .8rem;
  margin: 1rem 0;
}

.grammar-section-card {
  padding: .9rem;
  border-radius: .9rem;
  background: var(--surface-2, #f4f7f5);
  border: 1px solid var(--border, #dae3de);
}

.grammar-section-card h3 { margin-top: 0; }
.grammar-section-card ul,
.grammar-note ul { padding-left: 1.1rem; }
.grammar-section-card li,
.grammar-note li { margin: .4rem 0; }

.grammar-note {
  padding: 1rem;
  margin: .9rem 0;
  border-radius: .9rem;
  background: var(--surface-2, #f4f7f5);
  border-left: 4px solid var(--primary, #123f38);
}

.grammar-note.contrast { border-left-color: #4b78a8; }
.grammar-note.mistake { border-left-color: #b35445; }

@media (max-width: 1100px) {
  .structure-card-grid,
  .conjunction-grid,
  .idiom-grid,
  .verb-bank-grid,
  .grammar-section-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pattern-table { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .structure-overview { flex-direction: column; }
  .structure-card-grid,
  .conjunction-grid,
  .idiom-grid,
  .verb-bank-grid,
  .featured-verb-grid,
  .verb-model-grid,
  .grammar-section-grid { grid-template-columns: 1fr; }
  .pattern-table article { grid-template-columns: 1fr; }
  .sentence-position-list > div { grid-template-columns: 1fr; }
  .structure-total { display: none; }
}

/* V8: grootschalige werkwoordenatlas */
.verb-page-heading { align-items: flex-end; }
.verb-atlas-stats { display: grid; grid-template-columns: repeat(3, minmax(110px, 1fr)); gap: 10px; width: min(520px, 100%); }
.verb-atlas-stats span { padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--muted); font-size: .78rem; }
.verb-atlas-stats strong { display: block; color: var(--ink); font-size: 1.25rem; }
.verb-atlas-layout { display: grid; grid-template-columns: minmax(310px, 380px) minmax(0, 1fr); gap: 20px; align-items: start; }
.verb-atlas-sidebar { position: sticky; top: calc(var(--header) + 18px); padding: 22px; max-height: calc(100vh - var(--header) - 36px); display: flex; flex-direction: column; min-height: 620px; }
.verb-search-label { margin-bottom: 7px; font-weight: 800; }
.verb-filter-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.verb-filter-grid label { color: var(--muted); font-size: .73rem; font-weight: 750; }
.verb-filter-grid select { margin-top: 5px; padding: 9px 10px; font-size: .82rem; }
.verb-results-summary { display: flex; justify-content: space-between; gap: 10px; margin: 5px 0 10px; color: var(--muted); font-size: .78rem; }
.verb-results-summary strong { color: var(--ink); }
.verb-atlas-list { flex: 1; min-height: 240px; overflow: auto; display: grid; align-content: start; gap: 6px; padding-right: 4px; }
.verb-list-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; width: 100%; padding: 10px 11px; border: 1px solid transparent; border-radius: 12px; background: var(--bg); color: var(--ink); text-align: left; cursor: pointer; }
.verb-list-item:hover, .verb-list-item.active { border-color: var(--green-2); background: var(--green-soft); }
.verb-list-item strong, .verb-list-item small { overflow: hidden; text-overflow: ellipsis; }
.verb-list-copy { min-width: 0; }
.verb-list-item small { display: block; margin-top: 2px; color: var(--muted); }
.verb-list-definition { display: -webkit-box !important; margin-top: 4px !important; overflow: hidden; line-height: 1.35; white-space: normal; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.verb-list-meta { white-space: nowrap; font-size: .7rem; }
.verb-list-badges { display: flex; align-items: center; gap: 4px; }
.verb-list-badges span, .verb-meta-chips span { padding: 4px 7px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); color: var(--muted); font-size: .68rem; white-space: nowrap; }
.verb-list-badges .regular { background: var(--green-soft); color: var(--green); }
.verb-list-badges .irregular { background: var(--orange-soft); color: var(--orange); }
.verb-load-more { width: 100%; margin-top: 10px; }
.verb-load-more[hidden] { display: none; }
.verb-atlas-detail { min-height: 720px; padding: clamp(24px, 4vw, 38px); }
.verb-detail-header { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.verb-detail-title h1 { margin-bottom: 5px; font-size: clamp(2rem, 5vw, 3.5rem); }
.verb-detail-title p { max-width: 760px; color: var(--muted); }
.verb-meta-chips { display: flex; flex-wrap: wrap; gap: 7px; margin: 15px 0 21px; }
.verb-meta-chips span.primary { background: var(--green-soft); color: var(--green); border-color: transparent; font-weight: 800; }
.verb-meta-chips span.semantic { background: var(--blue-soft); color: var(--blue); border-color: transparent; }
.verb-conjugation-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 20px 0; }
.conjugation-panel { padding: 18px; border-radius: 16px; background: var(--bg); border: 1px solid var(--line); }
.conjugation-panel h3 { margin-bottom: 12px; }
.conjugation-table { width: 100%; border-collapse: collapse; }
.conjugation-table td { padding: 7px 5px; border-bottom: 1px solid var(--line); }
.conjugation-table tr:last-child td { border-bottom: 0; }
.conjugation-table td:first-child { width: 42%; color: var(--muted); }
.verb-perfect-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 10px; }
.verb-perfect-form { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px; background: var(--green-soft); }
.verb-pattern-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 10px; margin-top: 12px; }
.verb-pattern-grid article { padding: 14px; border-radius: 13px; background: var(--surface-2); }
.verb-pattern-grid small { display: block; color: var(--orange); font-weight: 800; text-transform: uppercase; }
.verb-pattern-grid p { margin: 7px 0 0; }
.verb-semantic-note { margin: 18px 0; padding: 16px 18px; border-left: 4px solid var(--blue); border-radius: 0 14px 14px 0; background: var(--blue-soft); }
.verb-source-note { margin-top: 22px; color: var(--muted); font-size: .78rem; }

@media (max-width: 1050px) {
  .verb-atlas-layout { grid-template-columns: 1fr; }
  .verb-atlas-sidebar { position: static; max-height: none; min-height: 0; }
  .verb-atlas-list { max-height: 420px; }
}
@media (max-width: 700px) {
  .verb-atlas-stats { grid-template-columns: 1fr; }
  .verb-filter-grid, .verb-conjugation-grid { grid-template-columns: 1fr; }
  .verb-detail-header { flex-direction: column; }
  .verb-atlas-sidebar { padding: 16px; }
  .verb-atlas-detail { padding: 20px; }
}

/* V9: complete question system */
.question-page-heading{align-items:flex-start}.question-stats,.question-route{display:flex;flex-wrap:wrap;gap:.65rem}.question-stats span{display:grid;gap:.1rem;min-width:8.7rem;padding:.85rem 1rem;border:1px solid var(--border);border-radius:18px;background:var(--surface)}.question-stats strong{font-size:1.25rem;color:var(--accent)}.question-visual-hero{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(320px,1.1fr);gap:2rem;align-items:center;padding:1.35rem;margin-bottom:1.4rem;overflow:hidden}.question-visual-hero img{width:100%;max-height:330px;object-fit:contain;border-radius:24px}.question-visual-hero h2{font-size:clamp(1.65rem,2.7vw,2.45rem);margin:.4rem 0 .65rem}.question-visual-hero p{color:var(--muted);line-height:1.7}.question-route{align-items:center;margin-top:1.1rem}.question-route span{padding:.45rem .7rem;border-radius:999px;background:var(--surface-soft);font-weight:750;color:var(--accent)}.question-route i{font-style:normal;color:var(--muted)}.question-library-layout{margin-bottom:2.2rem}.question-detail{min-width:0}.question-rule-box{background:linear-gradient(135deg,var(--surface-soft),color-mix(in srgb,var(--orange) 12%,var(--surface)))}.question-example-list li{align-items:center}.section-intro{max-width:35rem;color:var(--muted);margin:0}.question-matrix-controls{display:flex;align-items:center;gap:.85rem;margin:.8rem 0 1rem}.question-matrix-controls label{font-weight:800;color:var(--text)}.question-matrix-controls input{flex:1;min-width:180px;max-width:420px;border:1px solid var(--border);background:var(--surface);color:var(--text);padding:.75rem .9rem;border-radius:12px}.question-matrix-controls span{margin-left:auto;color:var(--muted);font-size:.9rem}.question-matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.question-matrix-card{border:1px solid var(--border);border-radius:20px;padding:1rem;background:var(--surface);box-shadow:var(--shadow-sm)}.question-matrix-head{display:flex;justify-content:space-between;align-items:center;gap:1rem}.question-matrix-head strong{font-size:1.32rem;color:var(--accent)}.question-matrix-head span{font-size:.75rem;font-weight:850;padding:.25rem .5rem;border-radius:999px;background:var(--orange-soft);color:var(--orange-dark)}.question-matrix-card>p{color:var(--muted);margin:.5rem 0 .8rem}.question-form-row,.question-answer-row,.question-split-row,.person-contrast{display:flex;align-items:center;gap:.65rem;border-top:1px solid var(--border);padding:.7rem 0}.question-form-row small,.question-split-row small,.person-contrast small{min-width:5rem;text-transform:uppercase;letter-spacing:.07em;font-size:.68rem;color:var(--muted);font-weight:850}.question-form-row button{border:0;background:transparent;color:var(--text);font-weight:750;text-align:left;padding:0;cursor:pointer}.question-answer-row span,.question-split-row span{line-height:1.45}.question-answer-row .mini-audio{margin-left:auto}.person-contrast strong{color:var(--orange-dark)}.pronoun-chain{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.45rem;margin:.75rem 0}.pronoun-chain span{display:grid;gap:.14rem;padding:.55rem .45rem;border-radius:11px;background:var(--surface-soft);text-align:center;font-weight:800;overflow-wrap:anywhere}.pronoun-chain small{font-size:.65rem;text-transform:uppercase;color:var(--muted);letter-spacing:.05em}.question-practice{margin-top:2rem;padding:1.35rem}.question-practice-heading{display:flex;justify-content:space-between;gap:1.5rem;align-items:flex-start}.question-practice-heading h2{margin:.3rem 0}.practice-counter{flex:0 0 auto;padding:.45rem .7rem;border-radius:999px;background:var(--surface-soft);font-weight:850;color:var(--accent)}.question-practice-options{display:grid;gap:.65rem;margin:1.2rem 0}.question-practice-options button{border:1px solid var(--border);background:var(--surface);color:var(--text);padding:.9rem 1rem;border-radius:14px;text-align:left;font-weight:750;cursor:pointer;transition:.18s ease}.question-practice-options button:hover:not(:disabled){transform:translateY(-1px);border-color:var(--accent)}.question-practice-options button.correct{border-color:var(--success);background:color-mix(in srgb,var(--success) 12%,var(--surface))}.question-practice-options button.wrong{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 10%,var(--surface))}.question-practice-actions{display:flex;justify-content:space-between;gap:.8rem;flex-wrap:wrap;margin-top:.8rem}

@media (max-width:980px){.question-visual-hero{grid-template-columns:1fr}.question-visual-hero img{max-height:280px}.question-matrix{grid-template-columns:1fr}}
@media (max-width:640px){.question-stats span{min-width:calc(50% - .4rem)}.question-matrix-controls{align-items:stretch;flex-direction:column}.question-matrix-controls input{max-width:none;width:100%}.question-matrix-controls span{margin-left:0}.pronoun-chain{grid-template-columns:repeat(2,minmax(0,1fr))}.question-practice-heading{display:block}.practice-counter{display:inline-block;margin-top:.6rem}.question-practice-actions>*{width:100%}}

/* V10: A0-B2 complete visible routes */
.main-nav { min-height: 0; overflow-y: auto; padding-right: 3px; scrollbar-width: thin; }
.sidebar-bottom { flex: 0 0 auto; }
.level-quick-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.level-quick { display: grid; gap: 5px; min-height: 146px; padding: 20px; text-align: left; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.level-quick:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--green-2); }
.level-quick strong { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: var(--green-soft); color: var(--green-2); font-family: var(--font-display); font-size: 1.08rem; }
.level-quick span { font-family: var(--font-display); font-size: 1.05rem; font-weight: 800; }
.level-quick small { color: var(--muted); line-height: 1.35; }
.level-quick.level-a0 strong { background: #fff2cc; color: #84630b; }
.level-quick.level-a2 strong { background: var(--blue-soft); color: var(--blue); }
.level-quick.level-b1 strong { background: #ece8f8; color: var(--purple); }
.level-quick.level-b2 strong { background: var(--orange-soft); color: var(--orange); }
.level-card .level-badge { border: 0; cursor: pointer; }
.level-card .level-progress .text-button { margin-top: 8px; font-size: .72rem; }
.level-summary-a0 { background: #7b671d; }
.level-summary-b1 { background: #5f568d; }
.level-summary-b2 { background: #7a4935; }
.course-detail-hero.level-a0 { background: #fff6dc; }
.course-detail-hero.level-b1 { background: #efedf8; }
.course-detail-hero.level-b2 { background: #f8eae2; }
.spiral-theme-card p { display: -webkit-box; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.spiral-word-group summary strong { min-width: 58px; }
.precision-verb-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.precision-verb-grid button { display: grid; gap: 4px; padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-2); text-align: left; cursor: pointer; }
.precision-verb-grid button:hover { border-color: var(--green-2); transform: translateY(-1px); }
.precision-verb-grid strong { color: var(--ink); }
.precision-verb-grid small { color: var(--muted); }
.spiral-grammar-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.spiral-grammar-grid article { display: flex; flex-direction: column; min-height: 170px; padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface-2); }
.spiral-grammar-grid p { margin: 8px 0 14px; font-size: .82rem; }
.spiral-grammar-grid .text-button { margin-top: auto; align-self: flex-start; }
.spiral-dialogue p span { display: grid; gap: 3px; }
.spiral-dialogue p span strong { color: var(--green-2); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; }
.speaking-lab { display: grid; grid-template-columns: minmax(220px, .7fr) minmax(0, 1.3fr); gap: 24px; padding: 26px; background: linear-gradient(135deg, var(--surface-2), var(--surface)); }
.speaking-lab ol { display: grid; gap: 9px; margin: 0; padding-left: 24px; }
.speaking-lab li { padding-left: 5px; }
.speaking-lab button { width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); text-align: left; cursor: pointer; }
.speaking-lab button:hover { border-color: var(--green-2); }

@media (max-width: 1180px) {
  .level-quick-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .precision-verb-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .level-quick-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .precision-verb-grid, .spiral-grammar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .speaking-lab { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .level-quick-grid, .precision-verb-grid, .spiral-grammar-grid { grid-template-columns: 1fr; }
}

/* V11: getallen, tijd en wiskundetaal */
.number-page-heading,.math-page-heading{align-items:flex-start}.number-stats,.math-stats{display:flex;flex-wrap:wrap;gap:.65rem}.number-stats span,.math-stats span{display:grid;gap:.1rem;min-width:8.5rem;padding:.85rem 1rem;border:1px solid var(--border);border-radius:18px;background:var(--surface)}.number-stats strong,.math-stats strong{font-size:1.2rem;color:var(--accent)}
.number-visual-hero,.math-visual-hero{display:grid;grid-template-columns:minmax(260px,.85fr) minmax(320px,1.15fr);gap:2rem;align-items:center;padding:1.35rem;margin-bottom:1.4rem;overflow:hidden}.number-visual-hero img,.math-visual-hero img{width:100%;max-height:330px;object-fit:contain;border-radius:24px}.number-visual-hero h2,.math-visual-hero h2{font-size:clamp(1.65rem,2.7vw,2.45rem);margin:.4rem 0 .65rem}.number-visual-hero p,.math-visual-hero p{color:var(--muted);line-height:1.7}
.number-reference{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;margin:0 0 1.5rem}.number-reference-card{padding:1rem}.number-reference-card h2{font-size:1rem;margin:0 0 .65rem}.number-reference-card>div{display:grid;gap:.4rem}.number-reference-card button{border:0;background:var(--surface-soft);color:var(--text);border-radius:10px;padding:.55rem .65rem;text-align:left;cursor:pointer;font-weight:720}.number-reference-card button:hover{outline:2px solid color-mix(in srgb,var(--accent) 35%,transparent)}.number-reference-card button span{float:right}.number-library-layout{margin-bottom:2rem}.number-rule-box{background:linear-gradient(135deg,var(--surface-soft),color-mix(in srgb,var(--orange) 12%,var(--surface)))}
.math-toolbar{display:flex;gap:1rem;align-items:flex-end;justify-content:space-between;margin-bottom:1rem}.math-toolbar .filter-row{margin:0;flex:1}.math-search{display:grid;gap:.35rem;min-width:min(100%,280px);font-weight:800}.math-search span{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.math-search input{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:12px;padding:.75rem .9rem}
.math-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(310px,.7fr);gap:1rem;align-items:start}.math-concept-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.85rem}.math-concept-card{position:relative;display:grid;gap:.35rem;min-height:180px;padding:1rem;border:1px solid var(--border);border-radius:20px;background:var(--surface);color:var(--text);text-align:left;cursor:pointer;box-shadow:var(--shadow-sm);transition:.18s ease;overflow:hidden}.math-concept-card:hover,.math-concept-card.active{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow)}.math-concept-card.active{background:color-mix(in srgb,var(--accent) 7%,var(--surface))}.math-concept-card small{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:850}.math-concept-card strong{font-size:1.05rem}.math-concept-card p{margin:0;color:var(--muted);line-height:1.45;font-size:.9rem}.math-card-symbol{position:absolute;right:.75rem;top:.55rem;font-size:1.35rem;font-weight:900;color:color-mix(in srgb,var(--accent) 55%,var(--muted));max-width:42%;text-align:right;overflow-wrap:anywhere}.math-concept-detail{position:sticky;top:1rem;padding:1.35rem;min-height:420px}.math-symbol{display:grid;place-items:center;min-height:100px;margin:-.2rem 0 1rem;border-radius:20px;background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 14%,var(--surface-soft)),color-mix(in srgb,var(--orange) 16%,var(--surface)));font-size:clamp(2rem,6vw,4rem);font-weight:950;overflow-wrap:anywhere;text-align:center}.math-noun{font-weight:850;color:var(--orange-dark);margin:-.4rem 0 .8rem}.math-formula,.math-spoken{margin:1rem 0;padding:1rem;border-radius:16px;background:var(--surface-soft)}.math-formula small,.math-spoken small{display:block;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:850;margin-bottom:.4rem}.math-formula strong{font-size:1.35rem;overflow-wrap:anywhere}.math-spoken p{font-size:1.05rem;line-height:1.55;margin:.2rem 0 .8rem}
@media (max-width:1180px){.number-reference{grid-template-columns:repeat(2,minmax(0,1fr))}.math-concept-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:980px){.number-visual-hero,.math-visual-hero{grid-template-columns:1fr}.number-visual-hero img,.math-visual-hero img{max-height:280px}.math-layout{grid-template-columns:1fr}.math-concept-detail{position:static}.math-toolbar{align-items:stretch;flex-direction:column}}
@media (max-width:640px){.number-stats span,.math-stats span{min-width:calc(50% - .4rem)}.number-reference{grid-template-columns:1fr}.math-concept-grid{grid-template-columns:1fr}.math-concept-card{min-height:150px}.math-toolbar .filter-row{overflow-x:auto;flex-wrap:nowrap;padding-bottom:.25rem}.math-toolbar .filter-row button{white-space:nowrap}.math-search{min-width:0;width:100%}}

/* V12-V13: toegankelijke kleurbediening en technische begrippenatlassen */
html[data-text-scale="small"] { font-size: 15px; }
html[data-text-scale="normal"] { font-size: 16px; }
html[data-text-scale="large"] { font-size: 18px; }

html[data-contrast="high"] {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #f3f6f4;
  --surface-3: #fff4e8;
  --ink: #071d19;
  --muted: #354843;
  --line: #6c7d77;
  --green: #073f35;
  --green-2: #075d4d;
  --green-soft: #d7eee6;
  --orange: #9a3f16;
  --orange-soft: #fce4d5;
  --blue: #1f5f82;
  --blue-soft: #dcecf5;
  --danger: #8e241f;
  --success: #145b3c;
}
html[data-theme="dark"][data-contrast="high"] {
  --bg: #000000;
  --surface: #0d1714;
  --surface-2: #14241f;
  --surface-3: #251d17;
  --ink: #ffffff;
  --muted: #d4dfda;
  --line: #91a29b;
  --green: #b8f2df;
  --green-2: #9be1c9;
  --green-soft: #173f34;
  --orange: #ffc09d;
  --orange-soft: #4b281b;
  --blue: #b8def1;
  --blue-soft: #173748;
  --danger: #ffaaa4;
  --success: #a5e7c2;
}
html[data-color-profile="color-safe"] {
  --green: #154a66;
  --green-2: #006da4;
  --green-soft: #dceef7;
  --orange: #9b5d00;
  --orange-soft: #fff0c8;
  --yellow: #e6ab02;
  --blue: #5b4f9a;
  --blue-soft: #ece8f7;
  --success: #176c55;
  --danger: #a33c30;
}
html[data-theme="dark"][data-color-profile="color-safe"] {
  --green: #9bd8f2;
  --green-2: #78c8eb;
  --green-soft: #16394b;
  --orange: #ffd166;
  --orange-soft: #45391a;
  --yellow: #f4c95d;
  --blue: #c2b8f0;
  --blue-soft: #312c4e;
}
html[data-motion="reduced"] *,
html[data-motion="reduced"] *::before,
html[data-motion="reduced"] *::after {
  scroll-behavior: auto !important;
  animation-duration: .01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: .01ms !important;
}

:where(button, a, input, select, summary):focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

.theme-switch,
.text-size-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}
.theme-choice,
.text-size-switch button,
.accessibility-button,
.menu-more {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-weight: 800;
}
.theme-choice { display: inline-flex; align-items: center; gap: 6px; padding: 7px 10px; }
.theme-choice.active,
.text-size-switch button.active {
  background: var(--green);
  color: var(--surface);
}
.accessibility-button,
.menu-more { display: inline-flex; align-items: center; gap: 6px; padding: 7px 10px; border-color: var(--line); background: var(--surface); color: var(--ink); }
.accessibility-button[aria-pressed="true"] { border-color: var(--orange); background: var(--orange-soft); color: var(--ink); }
.color-profile-control { display: inline-flex; align-items: center; gap: 7px; min-height: 38px; padding: 4px 8px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); color: var(--ink); }
.color-profile-control select { width: auto; min-width: 112px; padding: 5px 7px; border: 0; background: transparent; color: var(--ink); }
.setting-select { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 15px; }
.setting-select > span { display: flex; flex-direction: column; }
.setting-select small { color: var(--muted); }
.setting-select select { width: min(180px, 45%); }

.technical-page-heading { align-items: flex-start; }
.technical-stats { display: flex; flex-wrap: wrap; gap: 10px; }
.technical-stats span { display: grid; gap: 2px; min-width: 145px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 17px; background: var(--surface); color: var(--muted); font-size: .78rem; }
.technical-stats strong { color: var(--ink); font-size: 1.22rem; }
.technical-hero { display: grid; grid-template-columns: minmax(230px, .65fr) minmax(320px, 1.35fr); gap: 28px; align-items: center; margin-bottom: 22px; padding: clamp(22px, 4vw, 38px); overflow: hidden; }
.physics-hero { background: linear-gradient(135deg, var(--blue-soft), var(--surface)); }
.software-hero { background: linear-gradient(135deg, var(--green-soft), var(--surface)); }
.technical-hero-symbols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.technical-hero-symbols span { display: grid; place-items: center; min-height: 94px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); color: var(--green-2); font-family: var(--font-display); font-size: clamp(1.4rem, 4vw, 2.5rem); font-weight: 900; box-shadow: var(--shadow-sm); }
.technical-hero h2 { font-size: clamp(1.55rem, 2.6vw, 2.35rem); }
.technical-toolbar { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
.technical-toolbar .filter-row { flex: 1; margin: 0; }
.technical-search { display: grid; gap: 5px; width: min(330px, 100%); font-weight: 800; }
.technical-search span { color: var(--muted); font-size: .76rem; letter-spacing: .05em; text-transform: uppercase; }
.technical-concept-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.technical-concept-grid > .empty-state { grid-column: 1 / -1; }
.technical-concept-card { min-height: 210px; padding: 22px; }
.technical-card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 22px; }
.technical-card-head > span { display: inline-flex; padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface-2); color: var(--ink); font-size: .69rem; font-weight: 850; letter-spacing: .035em; text-transform: uppercase; }
.technical-concept-card h2 { margin-bottom: 12px; color: var(--ink); font-size: 1.25rem; }
.technical-concept-card p { margin: 0; color: var(--muted); line-height: 1.62; }
.technical-concept-card .mini-audio { flex: 0 0 auto; min-width: 38px; min-height: 38px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); color: var(--ink); cursor: pointer; }

@media (max-width: 1180px) {
  .technical-concept-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .control-label, .color-profile-control > span { display: none; }
}
@media (max-width: 980px) {
  .technical-hero { grid-template-columns: 1fr; }
  .technical-hero-symbols { max-width: 520px; }
  .technical-toolbar { align-items: stretch; flex-direction: column; }
  .technical-search { width: 100%; }
  .theme-choice span:last-child, .color-profile-control { display: none; }
}
@media (max-width: 680px) {
  .text-size-switch { display: none; }
  .technical-concept-grid { grid-template-columns: 1fr; }
  .technical-stats span { min-width: calc(50% - 5px); }
  .technical-toolbar .filter-row { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; }
  .technical-toolbar .filter-row button { white-space: nowrap; }
  .technical-concept-card { min-height: 0; }
  .setting-select { align-items: flex-start; flex-direction: column; }
  .setting-select select { width: 100%; }
}

/* V14: calm vocabulary learning cards */
.word-bank-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin: 18px 0 20px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}
.word-bank-search {
  flex: 1 1 360px;
  display: grid;
  gap: 6px;
  color: var(--ink);
  font-weight: 800;
  font-size: .78rem;
}
.word-bank-search input {
  width: 100%;
  min-height: 44px;
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-2);
  color: var(--ink);
  outline: none;
}
.word-bank-search input::placeholder { color: var(--muted); opacity: .9; }
.word-bank-search input:focus {
  border-color: var(--green-2);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--green-2) 20%, transparent);
}
.word-bank-result {
  flex: 0 0 auto;
  margin: 0;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 700;
}
.theme-word-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0 14px 15px;
}
.theme-word-card {
  min-width: 0;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-2);
  color: var(--ink);
  box-shadow: 0 5px 16px rgba(26, 59, 52, .04);
}
.theme-word-card.is-extra { display: none; }
.theme-word-group.show-all .theme-word-card.is-extra,
.full-word-bank.search-mode .theme-word-card.is-extra { display: block; }
.theme-word-card[hidden],
.theme-word-group[hidden] { display: none !important; }
.theme-word-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.word-kind {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green-2);
  font-size: .64rem;
  font-weight: 900;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.word-audio-actions { display: flex; gap: 6px; }
.icon-sound-button {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--green-2) 35%, var(--line));
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}
.icon-sound-button.slow { border-color: color-mix(in srgb, var(--orange) 40%, var(--line)); }
.icon-sound-button:hover,
.icon-sound-button:focus-visible {
  border-color: var(--green-2);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--green-2) 18%, transparent);
}
.theme-word-card h3 {
  margin: 0 0 7px;
  color: var(--ink);
  font-size: 1.06rem;
  overflow-wrap: anywhere;
}
.theme-word-definition {
  min-height: 3.15em;
  margin: 0;
  color: var(--muted);
  font-size: .88rem;
  line-height: 1.5;
}
.theme-word-example {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}
.theme-word-example summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  color: var(--green-2);
  font-size: .76rem;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}
.theme-word-example summary::-webkit-details-marker { display: none; }
.theme-word-example summary::after { content: '＋'; }
.theme-word-example[open] summary::after { content: '−'; }
.theme-word-example p {
  margin: 9px 0 5px;
  color: var(--ink);
  font-size: .84rem;
}
.theme-word-example .text-button { font-size: .74rem; }
.word-group-more {
  display: block;
  margin: 0 14px 15px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface);
  color: var(--green-2);
  font-weight: 800;
  cursor: pointer;
}
.word-group-more:hover,
.word-group-more:focus-visible {
  border-color: var(--green-2);
  background: var(--green-soft);
}
html[data-theme="dark"] .theme-word-card {
  box-shadow: none;
  background: color-mix(in srgb, var(--surface-2) 88%, #000);
}
html[data-contrast="high"] .theme-word-card,
html[data-contrast="high"] .word-bank-toolbar,
html[data-contrast="high"] .word-bank-search input {
  border-width: 2px;
}

@media (max-width: 820px) {
  .word-bank-toolbar { align-items: stretch; flex-direction: column; }
  .word-bank-result { align-self: flex-start; }
  .theme-word-card-grid { grid-template-columns: 1fr; }
  .theme-word-definition { min-height: 0; }
}

@media (max-width: 440px) {
  .theme-word-card-grid { padding-inline: 10px; }
  .theme-word-card { padding: 13px; }
  .word-group-more { margin-inline: 10px; }
}

/* V15: persoonlijke profielen en schaalbare oefenbank */
.profile-pill {
  min-width: 150px;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  padding: .38rem .7rem .38rem .42rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  text-align: left;
}
.profile-pill:hover,
.profile-pill:focus-visible { border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 18%, transparent); }
.profile-avatar {
  width: 2.2rem;
  height: 2.2rem;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  letter-spacing: .02em;
}
.profile-pill-copy { display: grid; line-height: 1.08; }
.profile-pill-copy small { color: var(--muted); font-size: .68rem; }
.profile-pill-copy strong { max-width: 9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.profile-dialog { width: min(680px, calc(100vw - 2rem)); max-height: min(780px, calc(100vh - 2rem)); padding: 0; border: 0; border-radius: 1.4rem; background: var(--surface); color: var(--text); box-shadow: 0 28px 90px rgba(0,0,0,.28); }
.profile-dialog::backdrop { background: rgba(5, 24, 21, .7); backdrop-filter: blur(6px); }
.profile-dialog-inner { padding: clamp(1.2rem, 3vw, 2rem); }
.profile-intro { margin-top: -.2rem; color: var(--muted); }
.storage-notice { display: flex; gap: .85rem; padding: 1rem; margin: 1rem 0; border: 1px solid var(--border); border-radius: 1rem; background: var(--surface-soft); }
.storage-notice span { font-size: 1.35rem; }
.storage-notice p { margin: .22rem 0 0; color: var(--muted); }
.profile-list { display: grid; gap: .65rem; max-height: 260px; overflow: auto; padding-right: .25rem; }
.profile-choice { display: flex; align-items: center; gap: .45rem; border: 1px solid var(--border); border-radius: 1rem; padding: .4rem; background: var(--surface); }
.profile-choice.active { border-color: var(--brand); background: color-mix(in srgb, var(--brand) 7%, var(--surface)); }
.profile-select { flex: 1; display: flex; align-items: center; gap: .75rem; padding: .35rem; border: 0; background: transparent; color: var(--text); text-align: left; }
.profile-select span:last-child { display: grid; }
.profile-select small { color: var(--muted); }
.profile-delete { flex: 0 0 auto; }
.empty-profile-state { padding: 1.2rem; border: 1px dashed var(--border); border-radius: 1rem; text-align: center; }
.empty-profile-state p { margin: .3rem 0 0; color: var(--muted); }
.new-profile-form { margin-top: 1rem; }
.new-profile-form > label { display: block; margin-bottom: .35rem; font-weight: 750; }
.new-profile-form > div { display: flex; gap: .55rem; }
.new-profile-form input { flex: 1; min-width: 0; }
.profile-dialog-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }
.import-label { display: inline-flex; align-items: center; cursor: pointer; }
.progress-actions { display: flex; flex-wrap: wrap; gap: .55rem; }
.exercise-heading { align-items: end; }
.exercise-total { min-width: 150px; padding: .85rem 1rem; border-radius: 1rem; background: var(--brand); color: #fff; text-align: center; }
.exercise-total strong { display: block; font-size: 1.65rem; }
.exercise-total span { font-size: .78rem; opacity: .9; }
.exercise-layout { display: grid; grid-template-columns: minmax(230px, 290px) minmax(0, 1fr); gap: 1rem; align-items: start; }
.exercise-sidebar { position: sticky; top: 5.6rem; padding: 1rem; }
.exercise-sidebar h2 { margin-top: 0; }
.exercise-sidebar label { display: grid; gap: .3rem; margin-bottom: .75rem; font-weight: 700; }
.exercise-sidebar select { width: 100%; }
.exercise-session-options { display: grid; grid-template-columns: 1fr 1fr; gap: .45rem; }
.exercise-session-options .active { background: var(--brand); color: #fff; border-color: var(--brand); }
.exercise-profile-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: .35rem; margin-top: .9rem; padding-top: .9rem; border-top: 1px solid var(--border); }
.exercise-profile-stats div { text-align: center; }
.exercise-profile-stats strong { display: block; font-size: 1.15rem; }
.exercise-profile-stats span { display: block; color: var(--muted); font-size: .68rem; }
.exercise-stage { min-height: 460px; padding: clamp(1.1rem, 3vw, 2rem); }
.exercise-card-header { display: flex; justify-content: space-between; gap: 1rem; align-items: center; color: var(--muted); font-size: .75rem; }
.exercise-card-header > div { display: flex; flex-wrap: wrap; gap: .35rem; }
.level-badge,.topic-badge,.type-badge { display: inline-flex; padding: .28rem .55rem; border-radius: 999px; font-weight: 800; }
.level-badge { background: var(--brand); color: #fff; }
.topic-badge { background: color-mix(in srgb, var(--accent) 20%, var(--surface)); color: var(--text); }
.type-badge { border: 1px solid var(--border); }
.exercise-question { margin: 2rem 0 1.3rem; }
.exercise-question h2 { max-width: 780px; font-size: clamp(1.45rem, 3vw, 2.15rem); line-height: 1.25; }
.exercise-options { display: grid; gap: .65rem; }
.exercise-options button { min-height: 3.35rem; padding: .8rem 1rem; text-align: left; border: 1px solid var(--border); border-radius: .85rem; background: var(--surface); color: var(--text); font-weight: 720; }
.exercise-options button:hover:not(:disabled), .exercise-options button:focus-visible { border-color: var(--brand); background: color-mix(in srgb, var(--brand) 7%, var(--surface)); }
.exercise-options button.correct { background: color-mix(in srgb, #147a5a 17%, var(--surface)); border-color: #147a5a; }
.exercise-options button.wrong { background: color-mix(in srgb, #b5463b 14%, var(--surface)); border-color: #b5463b; }
.exercise-input-label { display: grid; gap: .45rem; font-weight: 750; }
.exercise-input-label input, .exercise-input-label textarea { width: 100%; font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: .8rem; padding: .85rem; }
.exercise-input-label + .primary-button { margin-top: .75rem; }
.engine-order-zone { min-height: 4.2rem; display: flex; flex-wrap: wrap; gap: .45rem; align-items: center; padding: .75rem; border: 2px dashed var(--border); border-radius: .9rem; background: var(--surface-soft); }
.engine-word-bank { display: flex; flex-wrap: wrap; gap: .45rem; margin: .8rem 0; }
.engine-order-zone button,.engine-word-bank button { padding: .52rem .75rem; border: 1px solid var(--border); border-radius: .65rem; background: var(--surface); color: var(--text); font-weight: 720; }
.exercise-feedback { min-height: 3.5rem; margin-top: 1rem; padding: .85rem 1rem; border-left: 4px solid var(--accent); background: var(--surface-soft); border-radius: 0 .8rem .8rem 0; color: var(--text); }
.exercise-feedback span { color: var(--muted); }
.exercise-footer { display: flex; justify-content: space-between; gap: .7rem; margin-top: 1rem; }
.empty-exercise { min-height: 350px; display: grid; place-content: center; text-align: center; }
.empty-exercise span { font-size: 3rem; }
.legacy-practice { margin-top: 1rem; padding: 1rem; }
.legacy-practice summary { cursor: pointer; font-weight: 800; }
.legacy-practice[open] summary { margin-bottom: 1rem; }

@media (max-width: 980px) {
  .profile-pill-copy { display: none; }
  .profile-pill { min-width: 0; padding: .35rem; }
  .exercise-layout { grid-template-columns: 1fr; }
  .exercise-sidebar { position: static; }
}
@media (max-width: 620px) {
  .new-profile-form > div { flex-direction: column; }
  .exercise-session-options { grid-template-columns: 1fr; }
  .exercise-card-header { align-items: flex-start; flex-direction: column; }
  .exercise-profile-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .progress-actions { width: 100%; }
  .progress-actions button { flex: 1; }
}

/* V16: vindbare grammatica, lezen/schrijven en inhoudelijk brede oefenbank */
.grammar-discovery {
  margin-bottom: 1rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 1.15rem;
  background: linear-gradient(135deg, color-mix(in srgb, var(--brand) 7%, var(--surface)), var(--surface));
}
.grammar-shortcuts { display: flex; flex-wrap: wrap; gap: .55rem; }
.grammar-shortcuts button {
  min-height: 2.65rem;
  padding: .58rem .82rem;
  border: 1px solid var(--border);
  border-radius: .75rem;
  background: var(--surface);
  color: var(--text);
  font-weight: 780;
}
.grammar-shortcuts button:hover,
.grammar-shortcuts button:focus-visible { border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 16%, transparent); }
.logic-relations { margin-top: 1.35rem; }
.logic-relation-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
.logic-relation-card { border: 1px solid var(--border); border-radius: 1rem; background: var(--surface); overflow: hidden; }
.logic-relation-card summary { display: flex; justify-content: space-between; gap: 1rem; padding: .95rem 1rem; cursor: pointer; }
.logic-relation-card summary span { color: var(--muted); font-size: .78rem; }
.logic-item-list { display: grid; gap: .65rem; padding: 0 .8rem .8rem; }
.logic-item-list article { padding: .8rem; border-radius: .8rem; background: var(--surface-soft); }
.logic-item-list article > div:first-child { display: flex; justify-content: space-between; gap: .75rem; align-items: baseline; }
.logic-item-list small { color: var(--muted); }
.logic-item-list p { margin: .35rem 0 .55rem; }
.logic-example { display: flex; justify-content: space-between; gap: .75rem; align-items: center; border-left: 3px solid var(--accent); padding-left: .65rem; }
.reading-writing-heading { align-items: end; }
.reading-writing-stats { display: flex; flex-wrap: wrap; gap: .45rem; justify-content: flex-end; }
.reading-writing-stats span { min-width: 100px; padding: .68rem .8rem; border: 1px solid var(--border); border-radius: .9rem; background: var(--surface); text-align: center; }
.reading-writing-stats strong { display: block; font-size: 1.15rem; }
.reading-section, .email-section { margin-top: 1.4rem; }
.compact-filters { margin: 0; }
.reading-layout { display: grid; grid-template-columns: minmax(220px, 300px) minmax(0, 1fr); gap: 1rem; align-items: start; }
.reading-article-list { position: sticky; top: 5.6rem; padding: .7rem; display: grid; gap: .45rem; max-height: calc(100vh - 7rem); overflow: auto; }
.reading-article-detail { min-height: 560px; padding: clamp(1rem, 3vw, 2rem); }
.reading-article-header { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; }
.reading-article-header h2 { margin-bottom: .3rem; font-size: clamp(1.55rem, 3vw, 2.35rem); }
.reading-article-header p { color: var(--muted); }
.reading-vocabulary { margin: 1rem 0; border: 1px solid var(--border); border-radius: .9rem; background: var(--surface-soft); }
.reading-vocabulary summary { padding: .8rem 1rem; cursor: pointer; font-weight: 800; }
.reading-vocabulary > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem; padding: 0 .8rem .8rem; }
.reading-vocabulary article { position: relative; padding: .75rem 2.8rem .75rem .8rem; border-radius: .75rem; background: var(--surface); border: 1px solid var(--border); }
.reading-vocabulary article p { margin: .28rem 0 0; color: var(--muted); }
.reading-vocabulary article button { position: absolute; right: .55rem; top: .55rem; }
.reading-text { max-width: 820px; margin: 1.25rem auto; font-size: 1.04rem; line-height: 1.8; }
.reading-text p, .engine-reading-passage p { position: relative; padding-left: 2.25rem; }
.paragraph-number { position: absolute; left: 0; top: .1rem; width: 1.55rem; height: 1.55rem; display: inline-grid; place-items: center; border-radius: 50%; background: var(--brand); color: #fff; font-size: .72rem; font-weight: 850; }
.reading-questions { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.reading-question { padding: 1rem 0; border-bottom: 1px solid var(--border); }
.reading-question h4 { margin: 0 0 .75rem; font-size: 1.05rem; }
.reading-feedback { min-height: 2.5rem; margin: .65rem 0 0; padding: .7rem .8rem; border-radius: .7rem; background: var(--surface-soft); color: var(--muted); }
.reading-feedback strong { color: var(--text); }
.reading-feedback span { display: block; margin-top: .25rem; }
.nt2-style-badge { display: inline-flex; padding: .35rem .6rem; border-radius: 999px; background: color-mix(in srgb, var(--accent) 18%, var(--surface)); font-size: .75rem; font-weight: 800; }
.email-brief { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem; margin: 1rem 0; }
.email-brief div { padding: .75rem; border: 1px solid var(--border); border-radius: .75rem; background: var(--surface-soft); }
.email-brief small, .email-brief strong { display: block; }
.email-task-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
.email-task-grid section { padding: .9rem; border: 1px solid var(--border); border-radius: .85rem; background: var(--surface-soft); }
.email-task-grid h3 { margin-top: 0; }
.check-list li::marker { content: '✓  '; color: var(--brand); font-weight: 900; }
.text-audio { border: 0; padding: .25rem 0; background: transparent; color: var(--text); text-align: left; text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--brand) 35%, transparent); text-underline-offset: 3px; }
.email-editor { margin-top: 1rem; }
.email-model { margin-top: 1rem; padding: 1rem; border-left: 4px solid var(--brand); border-radius: 0 .85rem .85rem 0; background: var(--surface-soft); }
.email-model pre, .model-answer-text { white-space: pre-wrap; font: inherit; }
.engine-reading-passage { margin: 1rem 0; border: 1px solid var(--border); border-radius: .9rem; background: var(--surface-soft); }
.engine-reading-passage summary { padding: .8rem 1rem; cursor: pointer; font-weight: 850; }
.engine-reading-passage > div { max-height: 430px; overflow: auto; padding: 0 1rem 1rem; line-height: 1.65; }

@media (max-width: 980px) {
  .reading-layout { grid-template-columns: 1fr; }
  .reading-article-list { position: static; max-height: none; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .logic-relation-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .reading-article-list, .reading-vocabulary > div, .email-task-grid, .email-brief { grid-template-columns: 1fr; }
  .reading-article-header { flex-direction: column; }
  .reading-writing-stats { justify-content: flex-start; }
  .reading-writing-stats span { min-width: 88px; }
  .reading-text { font-size: 1rem; line-height: 1.72; }
}


/* V17: professionele begrippenatlassen */
.professional-domain-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 18px; }
.professional-domain-card { display: flex; align-items: center; gap: 14px; min-height: 92px; padding: 16px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); color: var(--ink); text-align: left; cursor: pointer; box-shadow: var(--shadow-sm); }
.professional-domain-card:hover { border-color: var(--green-2); transform: translateY(-1px); }
.professional-domain-card.active { border-color: var(--green); outline: 3px solid color-mix(in srgb, var(--green) 18%, transparent); background: var(--green-soft); }
.professional-domain-icon { display: grid; place-items: center; flex: 0 0 46px; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--green); font-family: var(--font-display); font-size: 1.25rem; font-weight: 900; }
.professional-domain-card span:last-child { display: grid; gap: 4px; }
.professional-domain-card strong { line-height: 1.18; }
.professional-domain-card small { color: var(--muted); }
.professional-domain-summary { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center; margin-bottom: 18px; padding: 22px; }
.professional-summary-icon { display: grid; place-items: center; width: 74px; height: 74px; border-radius: 22px; background: var(--green); color: white; font-family: var(--font-display); font-size: 2rem; font-weight: 900; }
.professional-domain-summary h2 { margin: 3px 0 5px; }
.professional-domain-summary p { margin: 0; color: var(--muted); }
.professional-concept-card { min-height: 225px; }
.professional-card-actions { display: flex; align-items: center; gap: 8px; }
.professional-card-actions > small { display: inline-flex; min-width: 34px; justify-content: center; padding: 5px 8px; border-radius: 999px; background: var(--green-soft); color: var(--green); font-size: .7rem; font-weight: 900; }
.professional-load-more-wrap { display: flex; justify-content: center; padding-top: 22px; }
.professional-load-more[hidden] { display: none; }
html[data-theme='dark'] .professional-domain-card.active { background: color-mix(in srgb, var(--green-2) 24%, var(--surface)); }
html[data-contrast='high'] .professional-domain-card.active { outline-width: 4px; }
@media (max-width: 1020px) { .professional-domain-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 680px) { .professional-domain-grid { grid-template-columns: 1fr; } .professional-domain-summary { grid-template-columns: 1fr; } .professional-summary-icon { width: 60px; height: 60px; } }

/* V18.7: semantische kennisgraaf en inhoudscontrole */
.knowledge-graph-heading { align-items: end; }
.knowledge-graph-version { flex: 0 0 auto; display: grid; min-width: 150px; padding: 16px 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); text-align: center; box-shadow: var(--shadow-sm); }
.knowledge-graph-version strong { font-family: var(--font-display); font-size: 1.45rem; }
.knowledge-graph-version span { color: var(--muted); font-size: .75rem; }
.knowledge-graph-notice { margin-bottom: 16px; }
.knowledge-graph-status { min-height: 24px; margin: 0 0 16px; color: var(--muted); font-size: .88rem; }
.knowledge-graph-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 18px; }
.knowledge-graph-stats article { display: grid; min-height: 112px; padding: 16px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow-sm); }
.knowledge-graph-stats span { color: var(--muted); font-size: .76rem; font-weight: 700; }
.knowledge-graph-stats strong { align-self: end; font-family: var(--font-display); font-size: 1.75rem; line-height: 1; }
.knowledge-graph-stats small { margin-top: 5px; color: var(--muted); }
.knowledge-graph-controls { display: grid; grid-template-columns: minmax(250px, 1.5fr) repeat(3, minmax(150px, .7fr)); gap: 12px; align-items: end; margin-bottom: 18px; padding: 18px; }
.knowledge-graph-controls label { display: grid; gap: 6px; color: var(--muted); font-size: .76rem; font-weight: 700; }
.knowledge-graph-controls input[type='search'], .knowledge-graph-controls select { width: 100%; min-height: 44px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); }
.knowledge-graph-controls .knowledge-check { grid-column: 1 / -1; display: flex; align-items: center; gap: 9px; min-height: 32px; color: var(--ink); font-size: .86rem; }
.knowledge-graph-controls .knowledge-check input { width: 18px; height: 18px; accent-color: var(--green); }
.knowledge-graph-layout { display: grid; grid-template-columns: minmax(250px, 330px) minmax(0, 1fr); gap: 18px; align-items: start; }
.knowledge-results-panel { position: sticky; top: calc(var(--header) + 16px); max-height: calc(100vh - var(--header) - 34px); padding: 16px; overflow: hidden; }
.knowledge-results { display: grid; gap: 6px; max-height: calc(100vh - var(--header) - 180px); overflow: auto; padding-right: 4px; }
.knowledge-result { position: relative; display: grid; gap: 3px; width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); color: var(--ink); text-align: left; cursor: pointer; }
.knowledge-result:hover { border-color: var(--green-2); background: var(--surface-2); }
.knowledge-result.active { border-color: var(--green); outline: 3px solid color-mix(in srgb, var(--green) 16%, transparent); background: var(--green-soft); }
.knowledge-result-type { color: var(--green-2); font-size: .66rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.knowledge-result strong { padding-right: 64px; line-height: 1.25; }
.knowledge-result small { color: var(--muted); line-height: 1.35; }
.knowledge-status { position: absolute; right: 8px; top: 8px; padding: 3px 6px; border-radius: 999px; background: var(--orange-soft); color: var(--orange); font-size: .6rem; font-weight: 800; }
.knowledge-status.error { background: color-mix(in srgb, var(--danger) 16%, var(--surface)); color: var(--danger); }
.knowledge-load-more { width: 100%; margin-top: 10px; }
.knowledge-graph-main { display: grid; gap: 18px; min-width: 0; }
.knowledge-canvas-panel, .knowledge-detail { padding: 18px; }
.knowledge-graph-legend { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-bottom: 10px; color: var(--muted); font-size: .72rem; }
.knowledge-graph-legend span { display: inline-flex; align-items: center; gap: 6px; }
.knowledge-graph-legend i { width: 11px; height: 11px; border: 2px solid var(--green); border-radius: 4px; background: var(--green-soft); }
.knowledge-graph-legend i.language { border-color: var(--green); background: var(--green-soft); }
.knowledge-graph-legend i.curriculum { border-color: var(--blue); background: var(--blue-soft); }
.knowledge-graph-legend i.exercise { border-color: var(--purple); background: color-mix(in srgb, var(--purple) 17%, var(--surface)); }
.knowledge-graph-legend i.issue { border-color: var(--orange); background: var(--orange-soft); }
.knowledge-graph-legend i.content { border-color: var(--line); background: var(--surface-2); }
.knowledge-graph-canvas { width: 100%; min-height: 460px; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: color-mix(in srgb, var(--surface-2) 62%, var(--surface)); }
.knowledge-graph-canvas svg { display: block; width: 100%; height: auto; min-height: 460px; }
.knowledge-edge line { stroke: color-mix(in srgb, var(--muted) 52%, transparent); stroke-width: 1.4; }
.knowledge-edge text { fill: var(--muted); font-size: 9px; paint-order: stroke; stroke: var(--surface); stroke-width: 4px; stroke-linejoin: round; }
.knowledge-node { cursor: pointer; }
.knowledge-node rect { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; }
.knowledge-node:hover rect, .knowledge-node.selected rect { stroke: var(--green); stroke-width: 3; }
.knowledge-node.selected rect { fill: var(--green-soft); }
.knowledge-node.language rect { stroke: var(--green-2); }
.knowledge-node.curriculum rect { stroke: var(--blue); fill: var(--blue-soft); }
.knowledge-node.exercise rect { stroke: var(--purple); fill: color-mix(in srgb, var(--purple) 13%, var(--surface)); }
.knowledge-node.issue rect { stroke: var(--orange); fill: var(--orange-soft); stroke-dasharray: 5 3; }
.knowledge-node text { pointer-events: none; fill: var(--ink); }
.knowledge-node .node-type { fill: var(--muted); font-size: 8px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.knowledge-node .node-label { font-size: 11px; font-weight: 800; }
.knowledge-node .node-level { fill: var(--muted); font-size: 7px; font-weight: 800; }
.knowledge-detail { min-height: 300px; }
.knowledge-detail-heading { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; margin-bottom: 16px; }
.knowledge-detail-heading h2 { margin-bottom: 6px; }
.knowledge-detail-heading p { margin-bottom: 0; }
.knowledge-detail-status { flex: 0 0 auto; padding: 6px 9px; border-radius: 999px; background: var(--orange-soft); color: var(--orange); font-size: .72rem; font-weight: 800; }
.knowledge-detail-status.reviewed { background: var(--green-soft); color: var(--green); }
.knowledge-detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-bottom: 16px; }
.knowledge-detail-grid > div { padding: 13px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-2); }
.knowledge-detail-grid span { color: var(--green-2); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.knowledge-detail-grid p { margin: 5px 0 0; color: var(--ink); }
.knowledge-issue-detail { margin-bottom: 16px; padding: 14px; border-left: 4px solid var(--orange); border-radius: 0 14px 14px 0; background: var(--orange-soft); }
.knowledge-issue-detail ul { margin-bottom: 0; }
.knowledge-raw-data { margin: 14px 0; border: 1px solid var(--line); border-radius: 14px; }
.knowledge-raw-data summary { padding: 12px 14px; cursor: pointer; font-weight: 800; }
.knowledge-raw-data section { padding: 0 14px 12px; }
.knowledge-raw-data section p { margin-bottom: 0; }
.knowledge-raw-data pre { max-height: 260px; overflow: auto; padding: 10px; border-radius: 10px; background: var(--surface-2); white-space: pre-wrap; }
.knowledge-relations { margin-top: 18px; }
.knowledge-relations details { border-top: 1px solid var(--line); }
.knowledge-relations summary { display: flex; justify-content: space-between; gap: 12px; padding: 11px 2px; cursor: pointer; font-weight: 800; }
.knowledge-relations summary span { color: var(--muted); }
.knowledge-relations details > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; padding-bottom: 12px; }
.knowledge-relations button { display: grid; gap: 2px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); color: var(--ink); text-align: left; cursor: pointer; }
.knowledge-relations button:hover { border-color: var(--green-2); background: var(--surface-2); }
.knowledge-relations button small { color: var(--muted); }

html[data-contrast='high'] .knowledge-node rect, html[data-contrast='high'] .knowledge-result, html[data-contrast='high'] .knowledge-graph-canvas { stroke-width: 3; border-width: 2px; }
html[data-motion='reduced'] .knowledge-node, html[data-motion='reduced'] .knowledge-result { transition: none; }

@media (max-width: 1180px) {
  .knowledge-graph-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .knowledge-search { grid-column: 1 / -1; }
  .knowledge-graph-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .knowledge-graph-layout { grid-template-columns: 280px minmax(0, 1fr); }
}
@media (max-width: 900px) {
  .knowledge-graph-layout { grid-template-columns: 1fr; }
  .knowledge-results-panel { position: static; max-height: none; }
  .knowledge-results { max-height: 360px; }
  .knowledge-graph-canvas { min-height: 380px; overflow-x: auto; }
  .knowledge-graph-canvas svg { min-width: 720px; min-height: 430px; }
}
@media (max-width: 680px) {
  .knowledge-graph-heading, .knowledge-detail-heading { flex-direction: column; }
  .knowledge-graph-version { width: 100%; }
  .knowledge-graph-controls, .knowledge-graph-stats, .knowledge-detail-grid, .knowledge-relations details > div { grid-template-columns: 1fr; }
  .knowledge-search { grid-column: auto; }
  .knowledge-canvas-panel, .knowledge-detail { padding: 14px; }
}

/* V19.2: praktijksituaties en visuele oefeningen */
.practice-heading { align-items: end; }
.practice-release-badge { display: grid; min-width: 150px; padding: 16px 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); text-align: center; box-shadow: var(--shadow-sm); }
.practice-release-badge strong { font-family: var(--font-display); font-size: 1.8rem; line-height: 1; }
.practice-release-badge span, .practice-release-badge small { color: var(--muted); }
.practice-scenario-layout { display: grid; grid-template-columns: minmax(250px, 330px) minmax(0, 1fr); gap: 18px; align-items: start; }
.practice-scenario-grid { display: grid; gap: 10px; }
.practice-scenario-card { position: relative; display: grid; grid-template-columns: 72px 1fr; gap: 12px; align-items: center; width: 100%; padding: 12px; color: var(--ink); text-align: left; cursor: pointer; overflow: hidden; }
.practice-scenario-card img { width: 72px; height: 72px; border-radius: 14px; object-fit: cover; background: var(--surface-2); }
.practice-scenario-card h2 { margin: 2px 0 4px; font-size: 1rem; }
.practice-scenario-card p { margin: 0; color: var(--muted); font-size: .78rem; line-height: 1.35; }
.practice-scenario-card small { color: var(--green-2); font-weight: 800; }
.practice-scenario-card.active { border-color: var(--green); outline: 3px solid color-mix(in srgb, var(--green) 14%, transparent); background: var(--green-soft); }
.practice-scenario-icon { position: absolute; right: 10px; top: 8px; color: var(--green-2); font-weight: 900; }
.practice-scenario-detail { display: grid; gap: 22px; padding: 22px; }
.practice-scenario-hero { display: grid; grid-template-columns: minmax(160px, 260px) 1fr; gap: 22px; align-items: center; }
.practice-scenario-hero img { width: 100%; max-height: 220px; border-radius: 18px; object-fit: cover; background: var(--surface-2); }
.practice-scenario-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.practice-scenario-columns section { padding: 15px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface-2); }
.practice-scenario-columns h2 { font-size: 1rem; }
.scenario-line { display: flex; justify-content: space-between; gap: 10px; width: 100%; padding: 10px 0; border: 0; border-top: 1px solid var(--line); background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.scenario-line:first-of-type { border-top: 0; }
.scenario-line small { flex: 0 0 auto; color: var(--green-2); }
.pronunciation-focus { display: flex; justify-content: space-between; gap: 18px; align-items: center; padding: 16px; border-left: 4px solid var(--green); border-radius: 0 16px 16px 0; background: var(--green-soft); }
.pronunciation-focus > div:last-child { display: flex; flex-wrap: wrap; gap: 7px; }
.pronunciation-focus span { padding: 6px 9px; border-radius: 999px; background: var(--surface); font-size: .75rem; font-weight: 750; }
.engine-visual { display: grid; place-items: center; margin: 0 0 16px; padding: 12px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface-2); }
.engine-visual img { display: block; width: min(100%, 480px); max-height: 260px; object-fit: contain; }
@media (max-width: 980px) { .practice-scenario-layout { grid-template-columns: 1fr; } .practice-scenario-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) { .practice-scenario-columns { grid-template-columns: 1fr; } .practice-scenario-hero { grid-template-columns: 1fr; } .pronunciation-focus { align-items: flex-start; flex-direction: column; } }
@media (max-width: 560px) { .practice-scenario-grid { grid-template-columns: 1fr; } .practice-scenario-detail { padding: 15px; } }

/* V19.2.5: visible C1-C2 learning routes. */
.level-quick.level-c1 strong { background: #e8f1f7; color: #24536f; }
.level-quick.level-c2 strong { background: #eee9f5; color: #5f3d78; }
.course-detail-hero.level-c1 { background: #eaf3f7; }
.course-detail-hero.level-c2 { background: #f0ebf6; }

/* V19.2.6: verb cards reuse the reviewed lexical definition shown in the detail panel. */

/* V19.3 RC1: honest lexical review status. */
.theme-word-card.needs-review { border-style: dashed; }
.theme-word-card.needs-review .word-kind { color: var(--danger); font-weight: 700; }