@font-face {
  font-family: 'Instrument Serif';
  src: url('../fonts/instrument-serif-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Instrument Serif';
  src: url('../fonts/instrument-serif-italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-latin.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #fbf4e5;
  --paper-2: #fffaf0;
  --card: #fffdf8;
  --card-2: #f4ecdc;
  --ink: #191410;
  --ink-soft: #463c32;
  --muted: #7b7062;
  --line: #e6dac5;
  --line-strong: #cbbb9f;
  --coral: #e64a2e;
  --coral-soft: #ffe6dd;
  --teal: #087f70;
  --teal-soft: #d7f6ef;
  --gold: #b97d05;
  --gold-soft: #fff0c2;
  --sun: #ffd24a;
  --indigo: #4b3f9e;
  --indigo-soft: #e9e6ff;
  --accent: var(--coral);
  --shadow-sm: 0 2px 0 rgba(25, 20, 16, 0.06), 0 8px 24px -14px rgba(25, 20, 16, 0.25);
  --shadow-md: 0 3px 0 rgba(25, 20, 16, 0.05), 0 24px 48px -28px rgba(25, 20, 16, 0.4);
  --serif: 'Instrument Serif', 'Iowan Old Style', Palatino, Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 18px;
  --radius-lg: 28px;
  --max: 1180px;
}

[data-theme='dark'] {
  --paper: #14110d;
  --paper-2: #191510;
  --card: #201a15;
  --card-2: #2a231c;
  --ink: #f8f1e4;
  --ink-soft: #d4c8b6;
  --muted: #a29482;
  --line: #372e25;
  --line-strong: #4d4133;
  --coral: #ff7456;
  --coral-soft: #3a1d16;
  --teal: #3fc6b4;
  --teal-soft: #102d29;
  --gold: #eab648;
  --gold-soft: #332611;
  --sun: #ffd24a;
  --indigo: #a89bff;
  --indigo-soft: #221d3d;
  --shadow-sm: 0 2px 0 rgba(0, 0, 0, 0.2), 0 8px 24px -14px rgba(0, 0, 0, 0.7);
  --shadow-md: 0 24px 48px -28px rgba(0, 0, 0, 0.9);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  background-image:
    radial-gradient(1000px 500px at 8% -10%, color-mix(in srgb, var(--coral) 12%, transparent), transparent 60%),
    radial-gradient(900px 500px at 96% 4%, color-mix(in srgb, var(--teal) 11%, transparent), transparent 60%),
    radial-gradient(color-mix(in srgb, var(--ink) 5%, transparent) 1px, transparent 1.2px);
  background-size: auto, auto, 26px 26px;
  background-attachment: fixed;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: color-mix(in srgb, var(--gold) 45%, transparent); }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
h1, h2, h3 { font-weight: 500; }
img, svg { display: block; }
.icon { flex: none; }
.skip-link { position: fixed; top: -60px; left: 16px; z-index: 999; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 999px; transition: top 0.2s; }
.skip-link:focus { top: 12px; }
.noscript { padding: 24px; text-align: center; }

.app { min-height: 100vh; }
.app-shell { min-height: 100vh; display: flex; flex-direction: column; }
.app-main { flex: 1; }
.bare-shell { min-height: 100vh; }

.page { width: 100%; max-width: var(--max); margin: 0 auto; padding: 34px 26px 96px; }
.narrow-page { max-width: 720px; padding-top: 90px; }
.muted { color: var(--muted); }
.small { font-size: 0.82rem; }
.kicker {
  display: inline-flex; align-items: center; gap: 8px; font-size: 0.68rem; font-weight: 750;
  text-transform: uppercase; letter-spacing: 0.13em; color: var(--coral);
  background: var(--coral-soft); border-radius: 999px; padding: 5px 10px;
}
.kicker-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; display: inline-block; }
.mini-label { font-size: 0.66rem; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); display: block; }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 0.86rem; color: var(--ink-soft); border-bottom: 1px solid transparent; transition: 0.18s; }
.text-link:hover { color: var(--coral); gap: 9px; }
.back-link { display: inline-flex; align-items: center; gap: 7px; font-size: 0.82rem; font-weight: 600; color: var(--muted); margin-bottom: 20px; }
.back-link:hover { color: var(--ink); }
.row-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* ---------- Brand & badges ---------- */
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { filter: saturate(1.02); }
.brand-word { font-family: var(--serif); font-size: 1.62rem; letter-spacing: -0.01em; }
.lang-badge {
  display: inline-flex; align-items: center; gap: 7px; border-radius: 999px;
  background: var(--lang-soft); color: var(--lang); border: 1px solid color-mix(in srgb, var(--lang) 24%, transparent);
  font-weight: 700; white-space: nowrap;
}
.lang-letter { display: inline-grid; place-items: center; font-size: 0.62rem; letter-spacing: 0.05em; }
.lang-sm { padding: 3px 8px; font-size: 0.68rem; }
.lang-md { padding: 5px 11px; font-size: 0.78rem; }
.lang-lg { padding: 9px 16px; font-size: 1rem; }
.lang-name { font-weight: 600; font-size: 0.78rem; }
.avatar {
  width: var(--size, 36px); height: var(--size, 36px); border-radius: 50%;
  display: inline-grid; place-items: center; background: var(--ink); color: var(--paper);
  font-weight: 700; font-size: calc(var(--size, 36px) * 0.38); flex: none;
}
.pair-arrow { color: var(--muted); display: inline-flex; }
.mini-arrow { color: var(--muted); font-size: 0.8rem; }

/* ---------- Buttons & fields ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  border: 1px solid transparent; border-radius: 999px; padding: 0.78rem 1.25rem;
  font-weight: 650; font-size: 0.9rem; line-height: 1.1; transition: transform 0.16s, box-shadow 0.16s, background 0.16s, border-color 0.16s;
  background: transparent; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px) rotate(-1deg); }
.btn:active { transform: translateY(2px) scale(0.99); }
.btn-primary { background: linear-gradient(135deg, #ff714c, var(--coral) 62%, #d93c20); color: #fffaf2; box-shadow: 0 2px 0 color-mix(in srgb, var(--coral) 55%, #000), 0 12px 24px -16px var(--coral); }
.btn-primary:hover { background: linear-gradient(135deg, #ff805d, #ef5333 62%, #e04425); }
.btn-ghost { border-color: var(--line-strong); color: var(--ink); background: color-mix(in srgb, var(--card) 60%, transparent); }
.btn-ghost:hover { background: var(--card); border-color: var(--ink-soft); }
.btn-danger { background: #b3341f; color: #fff; }
.btn-sm { padding: 0.52rem 0.86rem; font-size: 0.8rem; }
.btn-lg { padding: 0.95rem 1.5rem; font-size: 0.98rem; }
.btn-full { width: 100%; }
.btn.is-done { background: var(--teal); }
.btn.danger, .danger { color: #b3341f; }
[data-theme='dark'] .danger { color: #ff8b74; }
.icon-btn {
  display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--card); color: var(--ink-soft); transition: 0.16s;
}
.icon-btn:hover { border-color: var(--ink-soft); color: var(--ink); transform: translateY(-1px); }
.text-input {
  width: 100%; border: 1px solid var(--line-strong); background: var(--card);
  border-radius: 12px; padding: 0.7rem 0.85rem; color: var(--ink); outline: none;
  transition: border-color 0.16s, box-shadow 0.16s;
}
.text-input:focus { border-color: var(--coral); box-shadow: 0 0 0 4px color-mix(in srgb, var(--coral) 14%, transparent); }
.text-input-lg { padding: 0.9rem 1rem; font-size: 1.02rem; }
textarea.text-input { resize: vertical; line-height: 1.5; }
.field-label { display: block; font-size: 0.78rem; font-weight: 700; margin: 14px 0 7px; color: var(--ink-soft); }
.field-help { font-size: 0.78rem; color: var(--muted); margin-top: 8px; }
.row-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.file-btn { cursor: pointer; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40; border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: color-mix(in srgb, var(--paper) 84%, transparent); backdrop-filter: blur(16px);
}
.topbar-inner { max-width: var(--max); margin: 0 auto; padding: 11px 26px; display: flex; align-items: center; gap: 26px; }
.topnav { display: flex; align-items: center; gap: 3px; margin-left: 8px; }
.nav-link {
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 10px; border-radius: 999px;
  font-size: 0.8rem; font-weight: 600; color: var(--muted); transition: 0.16s;
}
.nav-link:hover { color: var(--ink); background: var(--card-2); }
.nav-link.is-active { color: var(--ink); background: var(--card); box-shadow: var(--shadow-sm); }
.topbar-tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.pair-chip { display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; background: var(--card); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.04em; }
.pair-codes { white-space: nowrap; }
.pair-dot { width: 8px; height: 8px; border-radius: 50%; }
.swap-btn { width: 30px; height: 30px; border: none; background: transparent; color: var(--muted); }
.stat-chip { display: inline-flex; align-items: center; gap: 4px; font-size: 0.76rem; font-weight: 700; color: var(--ink-soft); padding: 5px 9px; border-radius: 999px; }
.stat-chip .icon { color: var(--gold); }
.avatar-link { display: inline-flex; border-radius: 50%; }
.settings-btn { width: 34px; height: 34px; }
.bottomnav { display: none; }

/* ---------- Landing ---------- */
.landing { overflow: hidden; }
.landing-nav { position: relative; z-index: 20; max-width: var(--max); margin: 0 auto; padding: 18px 26px; }
.landing-nav-inner { display: flex; align-items: center; gap: 24px; }
.landing-links { display: flex; gap: 20px; margin-left: 12px; }
.landing-links a { font-size: 0.82rem; font-weight: 600; color: var(--muted); }
.landing-links a:hover { color: var(--ink); }
.landing-actions { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.preview-langs { display: flex; gap: 2px; background: var(--card); border: 1px solid var(--line); padding: 3px; border-radius: 999px; }
.preview-lang {
  width: 29px; height: 26px; border: none; background: transparent; border-radius: 999px;
  font-size: 0.6rem; font-weight: 800; color: var(--muted); letter-spacing: 0.03em;
}
.preview-lang.is-active { background: var(--lang); color: #fff; }
.hero {
  max-width: var(--max); margin: 0 auto; padding: 54px 26px 46px;
  display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 42px; align-items: center;
}
.hero-copy h1 {
  font-family: var(--serif); font-size: clamp(2.9rem, 5.5vw, 5.1rem); line-height: 0.98;
  letter-spacing: -0.028em; font-weight: 400; margin: 16px 0 18px; max-width: 13ch;
  background-image: linear-gradient(transparent 74%, color-mix(in srgb, var(--sun) 52%, transparent) 74%);
  background-repeat: no-repeat; background-size: 100% 100%;
}
.hero-sub { font-size: 1.04rem; color: var(--ink-soft); max-width: 54ch; line-height: 1.65; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 16px; }
.hero-note { display: flex; align-items: center; gap: 7px; font-size: 0.78rem; color: var(--muted); }
.hero-note .icon { color: var(--teal); }
.hero-stats { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); }
.hero-stats span { display: inline-flex; align-items: center; gap: 6px; font-size: 0.76rem; color: var(--muted); }
.hero-stats strong { color: var(--ink); font-size: 0.9rem; }
.hero-stats span:nth-child(1) strong { color: var(--coral); }
.hero-stats span:nth-child(2) strong { color: var(--teal); }
.hero-stats span:nth-child(3) strong { color: var(--gold); }
.hero-stats span:nth-child(4) strong { color: var(--indigo); }
.hero-stats .icon { color: var(--gold); }
.hero-board { position: relative; min-height: 500px; display: grid; place-items: center; }
.board-sticker {
  position: absolute; top: -14px; left: 50%; z-index: 8; transform: translateX(-50%) rotate(-3deg);
  display: inline-flex; align-items: center; gap: 6px; background: var(--sun); color: #2b1b00;
  border: 1px solid rgba(25, 20, 16, 0.14); border-radius: 999px; padding: 8px 14px;
  font-size: 0.74rem; font-weight: 800; letter-spacing: 0.02em;
  box-shadow: 0 3px 0 rgba(25, 20, 16, 0.12), 0 10px 24px -16px rgba(25, 20, 16, 0.5);
  animation: bob 5s ease-in-out infinite;
}
.hero-board::before,
.hero-board::after {
  position: absolute; z-index: 0; pointer-events: none; font-family: var(--serif);
  color: var(--gold); opacity: 0.8;
}
.hero-board::before { content: '✦'; font-size: 34px; top: 28%; left: -4px; transform: rotate(-12deg); }
.hero-board::after { content: '✺'; font-size: 28px; right: 2px; bottom: 17%; transform: rotate(14deg); color: var(--teal); }
@keyframes bob { 0%, 100% { transform: translateX(-50%) rotate(-3deg) translateY(0); } 50% { transform: translateX(-50%) rotate(-1deg) translateY(-5px); } }
.board-blob { position: absolute; border-radius: 50%; filter: blur(2px); opacity: 0.65; }
.blob-1 { width: 330px; height: 330px; background: color-mix(in srgb, var(--teal) 22%, transparent); top: 30px; left: 30px; }
.blob-2 { width: 280px; height: 280px; background: color-mix(in srgb, var(--gold) 22%, transparent); bottom: 10px; right: 10px; }
.board-cards { position: relative; width: 100%; max-width: 520px; height: 420px; }
.hero-word-card {
  position: absolute; width: 218px; text-align: left; border: 1px solid var(--line);
  background: var(--card); border-radius: 22px; padding: 16px 18px 18px;
  box-shadow: var(--shadow-md); display: flex; flex-direction: column; gap: 5px; transition: transform 0.25s, box-shadow 0.25s;
}
.hero-word-card:hover { transform: rotate(0) translateY(-6px) scale(1.03) !important; z-index: 5; }
.card-0 { top: 8px; left: 6%; transform: rotate(-6deg); }
.card-1 { top: 0; right: 2%; transform: rotate(5deg); }
.card-2 { bottom: 20px; left: 0; transform: rotate(4deg); }
.card-3 { bottom: 8px; right: 4%; transform: rotate(-4deg); }
.hw-top { display: flex; align-items: center; justify-content: space-between; }
.hw-mark { color: var(--lang); opacity: 0.85; }
.hw-word { font-family: var(--serif); font-size: 2.3rem; line-height: 1; letter-spacing: -0.02em; color: var(--ink); margin-top: 8px; }
.hw-gloss { font-size: 0.78rem; color: var(--muted); }
.hw-pron { font-size: 0.68rem; color: var(--lang); font-weight: 600; letter-spacing: 0.02em; }
.board-caption {
  position: absolute; bottom: -16px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px; background: var(--paper-2); border: 1px solid var(--line);
  border-radius: 999px; padding: 8px 16px 8px 9px; font-size: 0.7rem; color: var(--muted);
  box-shadow: var(--shadow-sm); max-width: 440px; line-height: 1.35;
}
.caption-mark { flex: none; }
.word-marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--card) 55%, transparent); }
.marquee-track { display: flex; align-items: center; gap: 26px; padding: 13px 0; width: max-content; animation: marquee 38s linear infinite; font-family: var(--serif); font-size: 1.18rem; color: var(--ink-soft); }
.marquee-track i { width: 5px; height: 5px; border-radius: 50%; background: var(--coral); opacity: 0.5; }
@keyframes marquee { to { transform: translateX(-50%); } }
.landing-section { max-width: var(--max); margin: 0 auto; padding: 78px 26px; }
.landing-section-head { max-width: 720px; margin-bottom: 34px; }
.landing-section-head h2 { font-family: var(--serif); font-size: clamp(2rem, 3.4vw, 2.9rem); line-height: 1.02; letter-spacing: -0.02em; margin: 12px 0 12px; font-weight: 400; }
.landing-section-head p { color: var(--ink-soft); max-width: 60ch; }
.how-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.how-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; min-height: 210px; display: flex; flex-direction: column; gap: 10px; transition: 0.2s; }
.how-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.how-top { display: flex; justify-content: space-between; align-items: center; }
.how-icon { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; background: var(--coral-soft); color: var(--coral); }
.how-card:nth-child(2) .how-icon { background: var(--teal-soft); color: var(--teal); }
.how-card:nth-child(3) .how-icon { background: var(--gold-soft); color: var(--gold); }
.how-card:nth-child(4) .how-icon { background: var(--indigo-soft); color: var(--indigo); }
.how-num { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; color: var(--muted); }
.how-card h3 { font-family: var(--serif); font-size: 1.32rem; line-height: 1.1; }
.how-card p { font-size: 0.84rem; color: var(--ink-soft); line-height: 1.55; }
.audience-section { padding-top: 20px; }
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.audience-card {
  position: relative; overflow: hidden; background: var(--lang-soft); border: 1px solid color-mix(in srgb, var(--lang) 22%, transparent);
  border-radius: var(--radius-lg); padding: 26px; min-height: 240px;
}
.audience-letter { position: absolute; right: 16px; bottom: -24px; font-family: var(--serif); font-size: 8rem; line-height: 1; color: var(--lang); opacity: 0.14; }
.audience-flags { margin-bottom: 30px; }
.audience-card h3 { font-family: var(--serif); font-size: 1.7rem; margin-bottom: 8px; color: var(--ink); }
.audience-card p { font-size: 0.9rem; color: var(--ink-soft); max-width: 34ch; }
.dialect-section { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 46px; align-items: center; }
.dialect-copy h2 { font-family: var(--serif); font-size: clamp(2rem, 3.4vw, 2.9rem); line-height: 1.02; margin: 12px 0 16px; font-weight: 400; }
.dialect-copy p { color: var(--ink-soft); }
.dialect-quote { display: flex; align-items: center; gap: 10px; margin-top: 24px; font-size: 0.82rem; font-weight: 600; color: var(--teal); }
.dialect-board { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-sm); }
.dialect-head { display: flex; justify-content: space-between; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); padding: 4px 4px 14px; }
.dialect-es { display: inline-grid; place-items: center; background: var(--coral-soft); color: var(--coral); border-radius: 5px; padding: 2px 5px; font-size: 0.58rem; letter-spacing: 0.04em; vertical-align: middle; }
.dialect-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.dialect-card {
  text-align: left; background: var(--paper-2); border: 1px solid var(--line); border-radius: 14px;
  padding: 12px; display: flex; flex-direction: column; gap: 4px; transition: 0.16s;
}
.dialect-card:hover { border-color: var(--gold); transform: translateY(-2px); }
.dialect-region { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.dialect-term { font-family: var(--serif); font-size: 1.28rem; line-height: 1.1; }
.dialect-lang { font-size: 0.62rem; font-weight: 700; color: var(--gold); display: flex; align-items: center; gap: 4px; }
.labs-preview { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 40px; align-items: center; }
.labs-preview-copy h2 { font-family: var(--serif); font-size: clamp(2rem, 3.4vw, 2.9rem); line-height: 1.02; margin: 12px 0 14px; font-weight: 400; }
.labs-preview-copy p { color: var(--ink-soft); margin-bottom: 22px; }
.lab-teasers { display: grid; gap: 10px; }
.lab-teaser { display: flex; align-items: center; gap: 14px; padding: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; transition: 0.18s; }
.lab-teaser:hover { border-color: var(--coral); transform: translateX(4px); }
.teaser-icon { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--coral-soft); color: var(--coral); flex: none; }
.lab-teaser:nth-child(2) .teaser-icon { background: var(--indigo-soft); color: var(--indigo); }
.lab-teaser:nth-child(3) .teaser-icon { background: var(--teal-soft); color: var(--teal); }
.lab-teaser strong { display: block; font-size: 0.92rem; }
.lab-teaser small { color: var(--muted); font-size: 0.78rem; line-height: 1.4; }
.respect-section {
  max-width: var(--max); margin: 20px auto 60px; padding: 0 26px;
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px; align-items: stretch;
}
.respect-section blockquote { margin: 0; background: var(--ink); color: var(--paper); border-radius: var(--radius-lg); padding: 40px; position: relative; overflow: hidden; }
[data-theme='dark'] .respect-section blockquote { background: var(--card); color: var(--ink); border: 1px solid var(--line); }
.quote-mark { font-family: var(--serif); font-size: 5rem; line-height: 0.6; opacity: 0.35; display: block; margin-bottom: 16px; }
.respect-section blockquote p { font-family: var(--serif); font-size: clamp(1.3rem, 2.2vw, 1.75rem); line-height: 1.35; }
.respect-section blockquote footer { margin-top: 20px; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.12em; opacity: 0.65; }
.respect-cta { background: var(--coral-soft); border: 1px solid color-mix(in srgb, var(--coral) 20%, transparent); border-radius: var(--radius-lg); padding: 36px; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 12px; }
.respect-cta h2 { font-family: var(--serif); font-size: 2.2rem; line-height: 1.02; }
.respect-cta p { color: var(--ink-soft); font-size: 0.9rem; }
.landing-footer { border-top: 1px solid var(--line); padding: 34px 26px 50px; max-width: var(--max); margin: 0 auto; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.landing-footer p { font-size: 0.75rem; color: var(--muted); }
.landing-footer .footer-small { margin-left: auto; font-family: var(--serif); font-size: 1rem; color: var(--ink-soft); }

/* ---------- Onboarding ---------- */
.onboarding { min-height: 100vh; display: flex; flex-direction: column; }
.onb-nav { max-width: 980px; width: 100%; margin: 0 auto; padding: 20px 26px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.onb-progress { text-align: center; font-size: 0.7rem; font-weight: 600; color: var(--muted); }
.onb-dots { display: flex; gap: 5px; justify-content: center; margin-top: 7px; }
.dot { width: 22px; height: 4px; border-radius: 99px; background: var(--line-strong); }
.dot.is-current { background: var(--coral); width: 32px; }
.dot.is-done { background: var(--teal); }
.onb-nav-right { display: flex; align-items: center; gap: 12px; }
.onb-skip { font-size: 0.78rem; color: var(--muted); }
.onb-main { flex: 1; width: 100%; max-width: 980px; margin: 0 auto; padding: 26px 26px 40px; }
.onb-step { animation: rise 0.4s ease both; }
.onb-step-narrow { max-width: 820px; margin: 0 auto; }
.onb-step-head { max-width: 680px; margin-bottom: 30px; }
.onb-step-head h1 { font-family: var(--serif); font-size: clamp(2.4rem, 4.6vw, 3.8rem); line-height: 0.98; letter-spacing: -0.02em; font-weight: 400; margin: 12px 0 12px; }
.onb-step-head h1 em { font-style: italic; color: var(--coral); }
.onb-step-head p { color: var(--ink-soft); }
.onb-grid-two { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 20px; }
.onb-panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; }
.onb-summary { margin-top: 36px; display: flex; align-items: center; gap: 12px; font-family: var(--serif); font-size: 1.2rem; color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 20px; }
.lang-choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.lang-choice { text-align: left; border: 1px solid var(--line); background: var(--paper-2); border-radius: 14px; padding: 12px; display: flex; flex-direction: column; gap: 4px; transition: 0.16s; }
.lang-choice:hover { border-color: var(--lang); }
.lang-choice.is-active { border-color: var(--lang); background: var(--lang-soft); box-shadow: inset 0 0 0 1px var(--lang); }
.lang-choice-top { display: flex; justify-content: space-between; align-items: center; }
.lang-choice strong { font-size: 0.92rem; }
.lang-choice small { font-size: 0.7rem; color: var(--muted); }
.target-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 26px; }
.target-card { text-align: left; border: 1px solid var(--line); background: var(--card); border-radius: 20px; padding: 18px; display: flex; flex-direction: column; gap: 6px; transition: 0.18s; }
.target-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: var(--lang); }
.target-card.is-active { border-color: var(--lang); background: var(--lang-soft); box-shadow: inset 0 0 0 1px var(--lang); }
.target-top { display: flex; justify-content: space-between; margin-bottom: 10px; }
.target-check { color: var(--lang); }
.target-card strong { font-family: var(--serif); font-size: 1.5rem; font-weight: 400; }
.target-native { font-size: 0.75rem; color: var(--muted); }
.target-sample { font-size: 0.82rem; color: var(--lang); margin-top: auto; }
.pair-preview { display: flex; align-items: center; justify-content: center; gap: 22px; padding: 22px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.region-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 20px; }
.region-card { position: relative; text-align: left; border: 1px solid var(--line); background: var(--card); border-radius: 14px; padding: 14px; display: flex; flex-direction: column; gap: 5px; transition: 0.16s; }
.region-card:hover { border-color: var(--coral); }
.region-card.is-active { border-color: var(--coral); background: var(--coral-soft); }
.region-code { font-size: 0.62rem; font-weight: 800; letter-spacing: 0.08em; color: var(--muted); }
.region-card strong { font-size: 0.86rem; }
.region-check { position: absolute; top: 10px; right: 10px; color: var(--coral); }
.region-note { display: flex; gap: 9px; align-items: center; font-size: 0.8rem; color: var(--muted); }
.goal-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin-bottom: 24px; }
.goal-card { position: relative; border: 1px solid var(--line); background: var(--card); border-radius: 14px; padding: 16px 10px; display: flex; flex-direction: column; align-items: center; gap: 8px; font-size: 0.78rem; font-weight: 600; text-align: center; transition: 0.16s; }
.goal-card:hover { border-color: var(--teal); }
.goal-card.is-active { border-color: var(--teal); background: var(--teal-soft); }
.goal-icon { color: var(--teal); }
.goal-check { position: absolute; top: 8px; right: 8px; color: var(--teal); }
.ready-card { display: flex; gap: 18px; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 22px; }
.ready-avatar { width: 62px; height: 62px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: var(--paper); font-family: var(--serif); font-size: 1.9rem; flex: none; }
.ready-copy h2 { font-family: var(--serif); font-size: 1.5rem; font-weight: 400; }
.ready-copy p { font-size: 0.84rem; color: var(--muted); margin: 3px 0 10px; }
.ready-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; }
.ready-region { display: inline-flex; align-items: center; gap: 4px; font-size: 0.72rem; color: var(--muted); }
.onb-footer { max-width: 980px; width: 100%; margin: 0 auto; padding: 18px 26px 34px; display: flex; justify-content: space-between; gap: 12px; }

/* ---------- Page heads / sections ---------- */
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.page-head h1 { font-family: var(--serif); font-size: clamp(2.3rem, 4vw, 3.4rem); line-height: 0.98; letter-spacing: -0.02em; font-weight: 400; margin: 8px 0 8px; }
.page-head p { color: var(--ink-soft); max-width: 62ch; font-size: 0.94rem; }
.page-head-side { flex: none; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin: 8px 0 16px; }
.section-head h2 { font-family: var(--serif); font-size: 1.8rem; font-weight: 400; line-height: 1.05; }
.section-head p { font-size: 0.82rem; color: var(--muted); margin-top: 3px; }
.pair-stack { display: flex; align-items: center; gap: 8px; background: var(--card); border: 1px solid var(--line); padding: 10px 14px; border-radius: 16px; }
.pair-codes-big { font-family: var(--serif); font-size: 1.8rem; color: var(--ink-soft); letter-spacing: 0.04em; }
.pair-codes-big span { color: var(--coral); }

/* ---------- Home ---------- */
.home-hero { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; padding: 12px 0 30px; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.home-hello h1 { font-family: var(--serif); font-size: clamp(2.4rem, 4.3vw, 3.7rem); font-weight: 400; line-height: 1; letter-spacing: -0.02em; margin: 10px 0 8px; }
.home-hello h1 em { font-style: italic; color: var(--coral); text-decoration: underline; text-decoration-style: wavy; text-decoration-color: var(--gold); text-underline-offset: 7px; text-decoration-thickness: 2px; }
.home-hello p { color: var(--muted); font-size: 0.9rem; }
.home-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.meta-pill { display: inline-flex; align-items: center; gap: 5px; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 5px 10px; font-size: 0.72rem; font-weight: 600; color: var(--ink-soft); }
.meta-pill .icon { color: var(--gold); }
.home-sticker {
  display: inline-flex; align-items: center; gap: 5px; background: var(--gold-soft); color: var(--gold);
  border: 1px solid color-mix(in srgb, var(--gold) 25%, var(--line)); border-radius: 999px;
  padding: 5px 10px; font-size: 0.7rem; font-weight: 750; transform: rotate(-2deg);
}
.home-daily { display: flex; align-items: center; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px 12px 12px; flex: none; }
.daily-copy strong { display: block; font-size: 0.8rem; }
.daily-copy span { font-size: 0.72rem; color: var(--muted); }
.ring { position: relative; width: var(--size); height: var(--size); flex: none; }
.ring svg { transform: rotate(0deg); }
.ring-track { stroke: var(--line); }
.ring-fill { stroke: var(--ring-color); stroke-linecap: round; transition: stroke-dashoffset 0.6s ease; }
.ring-label { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; font-weight: 700; font-size: 0.92rem; line-height: 1.1; }
.ring-label small { font-size: 0.56rem; font-weight: 600; color: var(--muted); letter-spacing: 0.04em; }
.home-layout { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 26px; }
.home-main { min-width: 0; }
.continue-card { position: relative; overflow: hidden; border-radius: var(--radius-lg); background: var(--unit-soft); border: 1px solid color-mix(in srgb, var(--unit) 24%, transparent); padding: 30px; min-height: 220px; display: flex; justify-content: space-between; gap: 20px; }
.continue-glow { position: absolute; width: 280px; height: 280px; border-radius: 50%; background: color-mix(in srgb, var(--unit) 18%, transparent); top: -100px; right: 10%; }
.continue-copy { position: relative; z-index: 1; max-width: 58%; }
.continue-kicker { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; color: var(--unit); }
.continue-num { display: block; font-size: 0.68rem; color: var(--muted); margin: 10px 0 2px; font-weight: 600; }
.continue-copy h2 { font-family: var(--serif); font-size: 2.5rem; font-weight: 400; line-height: 1; margin-bottom: 4px; }
.continue-copy p { font-size: 0.86rem; color: var(--ink-soft); }
.continue-actions { display: flex; align-items: center; gap: 14px; margin-top: 20px; }
.continue-progress { font-size: 0.76rem; color: var(--muted); font-weight: 600; }
.continue-art { position: relative; width: 160px; flex: none; display: grid; place-items: center; }
.continue-orb { position: absolute; border-radius: 50%; }
.orb-a { width: 150px; height: 150px; background: color-mix(in srgb, var(--unit) 14%, transparent); }
.orb-b { width: 100px; height: 100px; background: color-mix(in srgb, var(--unit) 22%, transparent); }
.continue-icon { position: relative; color: var(--unit); opacity: 0.9; }
.home-section { margin-top: 30px; }
.path-focus { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin: 4px 0 14px; font-size: 0.78rem; color: var(--muted); }
.path-focus strong { color: var(--ink-soft); }
.path-focus .icon { color: var(--teal); }
.focus-chip { display: inline-flex; align-items: center; padding: 3px 9px; border-radius: 999px; background: color-mix(in srgb, var(--lang) 12%, var(--card)); color: var(--lang); border: 1px solid color-mix(in srgb, var(--lang) 26%, transparent); font-weight: 700; font-size: 0.72rem; }
.page-head .path-focus { margin: 14px 0 0; }
.unit-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.home-tools { display: grid; gap: 8px; margin-top: 24px; }
.tool-card { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border: 1px solid var(--line); background: var(--card); border-radius: 16px; transition: 0.18s; }
.tool-card:hover { border-color: var(--coral); transform: translateX(3px); }
.tool-icon { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--teal-soft); color: var(--teal); flex: none; }
.tool-games .tool-icon { background: var(--coral-soft); color: var(--coral); }
.tool-forum .tool-icon { background: var(--indigo-soft); color: var(--indigo); }
.tool-math .tool-icon { background: var(--gold-soft); color: var(--gold); }
.tool-card strong { display: block; font-size: 0.88rem; }
.tool-card p { font-size: 0.76rem; color: var(--muted); }
.tool-arrow { margin-left: auto; color: var(--muted); }
.home-rail { display: flex; flex-direction: column; gap: 10px; }
.rail-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.review-card { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.review-card.has-due { border-color: color-mix(in srgb, var(--coral) 40%, var(--line)); background: var(--coral-soft); }
.rail-icon { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--paper-2); color: var(--coral); flex: none; }
.rail-copy { flex: 1; min-width: 120px; }
.rail-copy strong { display: block; font-size: 0.88rem; }
.rail-copy p { font-size: 0.74rem; color: var(--muted); }
.review-card .btn { flex: none; }
.word-card { position: relative; }
.word-card::before {
  content: ''; position: absolute; top: -8px; left: 22px; width: 58px; height: 17px;
  background: color-mix(in srgb, var(--gold) 22%, transparent);
  border: 1px solid color-mix(in srgb, var(--gold) 24%, transparent);
  border-radius: 2px; transform: rotate(-3deg); opacity: 0.9;
}
.word-card-top { display: flex; align-items: center; gap: 9px; margin-bottom: 12px; }
.word-big { font-family: var(--serif); font-size: 2.2rem; line-height: 1.05; }
.word-say { font-size: 0.72rem; color: var(--coral); font-weight: 600; margin-top: 2px; }
.word-gloss { font-size: 0.84rem; color: var(--muted); margin-top: 4px; }
.word-all { display: flex; flex-wrap: wrap; gap: 5px 12px; margin: 14px 0; }
.word-all span { font-size: 0.76rem; color: var(--muted); position: relative; padding-left: 8px; }
.word-all span::before { content: ''; width: 5px; height: 5px; background: var(--lang); border-radius: 50%; position: absolute; left: 0; top: 6px; }
.word-actions { display: flex; align-items: center; gap: 6px; }
.word-actions .text-link { margin-left: auto; }
.region-line { font-size: 0.74rem; font-weight: 700; color: var(--teal); text-transform: uppercase; letter-spacing: 0.08em; }
.region-variant { font-family: var(--serif); font-size: 2rem; margin: 4px 0; }
.region-base { font-size: 0.76rem; color: var(--muted); margin-bottom: 12px; }
.phrase-rail p { font-size: 0.8rem; color: var(--muted); margin: 0 0 12px; }

/* ---------- Unit cards / learn ---------- */
.unit-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 16px; min-height: 176px; transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s; position: relative; overflow: hidden; box-shadow: inset 0 4px 0 var(--unit); }
.unit-card:hover { transform: translateY(-4px) rotate(-0.7deg); box-shadow: inset 0 4px 0 var(--unit), var(--shadow-md); border-color: color-mix(in srgb, var(--unit) 45%, var(--line)); }
.unit-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.unit-icon { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: var(--unit-soft); color: var(--unit); }
.unit-number { width: 25px; height: 25px; border-radius: 50%; display: grid; place-items: center; background: color-mix(in srgb, var(--unit) 15%, var(--card)); color: var(--unit); font-size: 0.6rem; font-weight: 800; letter-spacing: 0.04em; }
.unit-body h3 { font-family: var(--serif); font-size: 1.45rem; font-weight: 400; line-height: 1; }
.unit-body p { font-size: 0.76rem; color: var(--muted); margin-top: 3px; }
.unit-foot { display: flex; justify-content: space-between; gap: 8px; margin-top: auto; padding-top: 12px; font-size: 0.68rem; color: var(--muted); }
.unit-status { font-weight: 700; }
.status-strong { color: var(--teal); }
.status-completed { color: var(--gold); }
.status-in_progress { color: var(--coral); }
.unit-meter { height: 3px; border-radius: 99px; background: var(--line); margin-top: 7px; overflow: hidden; }
.unit-meter span { display: block; height: 100%; background: var(--unit); }
.unit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.learn-summary { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 30px; }
.summary-stat strong { font-family: var(--serif); font-size: 1.7rem; font-weight: 400; }
.summary-stat strong span { font-size: 0.9rem; color: var(--muted); }
.summary-stat small { display: block; font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.learn-summary .btn { margin-left: auto; }
.learn-footer-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 30px; }.learn-mini-card { display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); background: var(--card); border-radius: 16px; padding: 16px; }.mini-card-icon { width: 40px; height: 40px; border-radius: 11px; background: var(--paper-2); display: grid; place-items: center; color: var(--coral); flex: none; }
.learn-mini-card strong { font-size: 0.88rem; }
.learn-mini-card p { font-size: 0.75rem; color: var(--muted); }
.learn-mini-card > .icon { margin-left: auto; color: var(--muted); }

/* ---------- Lesson ---------- */
.lesson-shell { min-height: 100vh; display: flex; flex-direction: column; background: var(--paper); }
.lesson-topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 16px; padding: 12px 22px; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.lesson-topmid { flex: 1; min-width: 0; }
.lesson-unit-name { display: block; font-size: 0.74rem; font-weight: 600; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 6px; }
.lesson-progress { height: 5px; background: var(--line); border-radius: 99px; overflow: hidden; }
.lesson-progress span { display: block; height: 100%; background: var(--coral); border-radius: 99px; transition: width 0.4s ease; }
.lesson-pair { display: flex; align-items: center; gap: 6px; flex: none; }
.lesson-root { flex: 1; width: 100%; max-width: 900px; margin: 0 auto; padding: 34px 24px 100px; }
.lesson-stage { animation: rise 0.35s ease both; }
.lesson-stage-head { display: grid; grid-template-columns: 1fr 1.1fr; gap: 28px; align-items: end; margin-bottom: 22px; }
.stage-unit { background: var(--unit-soft); border: 1px solid color-mix(in srgb, var(--unit) 22%, transparent); border-radius: var(--radius-lg); padding: 24px; }
.stage-unit-icon { width: 44px; height: 44px; border-radius: 12px; background: color-mix(in srgb, var(--unit) 15%, var(--card)); color: var(--unit); display: grid; place-items: center; margin-bottom: 26px; }
.stage-unit-kicker { font-size: 0.66rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--unit); }
.stage-unit h1 { font-family: var(--serif); font-size: 2.8rem; font-weight: 400; line-height: 1; }
.stage-unit p { font-size: 0.82rem; color: var(--ink-soft); }
.stage-head-copy h2 { font-family: var(--serif); font-size: 2rem; font-weight: 400; }
.stage-head-copy p { font-size: 0.86rem; color: var(--muted); margin: 6px 0 12px; }
.stage-tip { display: inline-flex; align-items: center; gap: 5px; font-size: 0.72rem; color: var(--coral); font-weight: 600; }
.dialogue-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.dialogue-line { display: flex; align-items: flex-end; gap: 10px; max-width: 82%; }
.dialogue-line.from-b { margin-left: auto; flex-direction: row-reverse; }
.dialogue-avatar { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: var(--paper-2); font-size: 0.66rem; font-weight: 800; color: var(--muted); flex: none; margin-bottom: 2px; }
.dialogue-bubble { background: var(--paper-2); border: 1px solid var(--line); border-radius: 16px 16px 16px 4px; padding: 11px 14px; }
.dialogue-line.from-b .dialogue-bubble { border-radius: 16px 16px 4px 16px; background: var(--teal-soft); border-color: color-mix(in srgb, var(--teal) 20%, var(--line)); }
.dialogue-target { display: block; font-size: 1.02rem; font-weight: 600; }
.dialogue-native { display: block; font-size: 0.78rem; color: var(--muted); margin-top: 3px; }
.dialogue-line .icon-btn { width: 30px; height: 30px; flex: none; margin-bottom: 2px; }
.lesson-nextbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 22px; }
.vocab-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.vocab-head .kicker { font-size: 0.7rem; }
.vocab-deck { display: grid; place-items: center; padding: 10px 0 6px; }
.vocab-card { width: min(520px, 100%); background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm); position: relative; overflow: hidden; }
.vocab-card::after { content: ''; position: absolute; width: 170px; height: 170px; border-radius: 50%; background: color-mix(in srgb, var(--unit) 10%, transparent); right: -50px; top: -60px; }
.vocab-top { display: flex; justify-content: space-between; align-items: center; position: relative; z-index: 1; }
.vocab-count { font-size: 0.7rem; font-weight: 700; color: var(--muted); letter-spacing: 0.08em; }
.vocab-term { font-family: var(--serif); font-size: clamp(2.6rem, 7vw, 4rem); line-height: 1; margin: 24px 0 2px; letter-spacing: -0.02em; position: relative; z-index: 1; }
.vocab-say { font-size: 0.82rem; color: var(--coral); font-weight: 600; letter-spacing: 0.02em; }
.vocab-audio { display: flex; gap: 6px; margin: 14px 0 20px; }
.vocab-divider { height: 1px; background: var(--line); margin-bottom: 16px; }
.vocab-native { font-size: 1.12rem; font-weight: 600; }
.vocab-variant { margin-top: 8px; font-size: 0.8rem; color: var(--muted); }
.vocab-variant span { font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.09em; background: var(--gold-soft); color: var(--gold); padding: 2px 6px; border-radius: 5px; margin-right: 5px; font-weight: 700; }
.vocab-all { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; }
.vocab-all span { position: relative; padding-left: 9px; font-size: 0.8rem; color: var(--muted); }
.vocab-all span::before { content: ''; width: 5px; height: 5px; background: var(--lang); border-radius: 50%; position: absolute; left: 0; top: 7px; }
.vocab-dots { display: flex; justify-content: center; gap: 5px; margin-top: 18px; }
.vocab-dots span { width: 6px; height: 6px; border-radius: 50%; background: var(--line-strong); }
.vocab-dots span.is-on { background: var(--coral); }
.quiz-topline { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.quiz-step { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; color: var(--muted); text-transform: uppercase; }
.quiz-score { display: inline-flex; align-items: center; gap: 4px; font-size: 0.76rem; font-weight: 700; color: var(--teal); }
.quiz-progress { height: 4px; background: var(--line); border-radius: 99px; overflow: hidden; margin-bottom: 18px; }
.quiz-progress span { display: block; height: 100%; background: var(--teal); transition: width 0.3s; }
.quiz-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm); }
.quiz-type { display: inline-flex; align-items: center; gap: 6px; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 14px; }
.prompt-word { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px; margin: 6px 0 22px; }
.prompt-term { font-family: var(--serif); font-size: clamp(2.6rem, 6vw, 3.8rem); line-height: 1; letter-spacing: -0.02em; }
.prompt-say { font-size: 0.78rem; color: var(--coral); font-weight: 600; }
.prompt-word .icon-btn { margin-left: 4px; }
.prompt-native { font-family: var(--serif); font-size: clamp(2rem, 5vw, 2.9rem); line-height: 1.1; margin: 6px 0 22px; }
.prompt-sentence { position: relative; margin: 6px 0 22px; padding-right: 40px; }
.sentence-target { display: block; font-family: var(--serif); font-size: clamp(1.5rem, 3.6vw, 2.1rem); line-height: 1.25; }
.sentence-native { display: block; font-size: 0.82rem; color: var(--muted); margin-top: 4px; }
.prompt-sentence .icon-btn { position: absolute; right: 0; top: 0; }
.prompt-audio { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 12px 0 26px; }
.big-audio { width: 86px; height: 86px; border-radius: 50%; border: none; background: var(--coral); color: #fff; display: grid; place-items: center; box-shadow: 0 3px 0 color-mix(in srgb, var(--coral) 55%, #000), 0 18px 40px -18px var(--coral); transition: 0.16s; }
.big-audio:hover { transform: scale(1.04); }
.audio-slow { display: inline-flex; align-items: center; gap: 5px; border: none; background: transparent; color: var(--muted); font-size: 0.74rem; font-weight: 600; }
.choices { display: grid; gap: 8px; }
.choice { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; background: var(--paper-2); border: 1px solid var(--line); border-radius: 13px; padding: 12px 14px; transition: 0.15s; font-size: 0.94rem; }
.choice:hover:not(:disabled) { border-color: var(--ink-soft); background: var(--card); transform: translateX(2px); }
.choice.is-chosen { border-color: var(--coral); }
.choice.is-right { border-color: var(--teal); background: var(--teal-soft); }
.choice.is-wrong { border-color: #c84a32; background: color-mix(in srgb, #c84a32 10%, var(--card)); }
.choice:disabled { cursor: default; opacity: 0.94; }
.choice-key { width: 24px; height: 24px; border-radius: 7px; display: grid; place-items: center; background: var(--card); border: 1px solid var(--line); font-size: 0.68rem; font-weight: 700; color: var(--muted); flex: none; }
.choice-text { flex: 1; }
.choice-mark { color: var(--teal); flex: none; }
.choice.is-wrong .choice-mark { color: #c84a32; }
.choices.two-col { grid-template-columns: 1fr 1fr; }
.type-answer { display: flex; flex-direction: column; gap: 8px; }
.type-hint { font-size: 0.75rem; color: var(--muted); }
.answer-panel { margin-top: 18px; border-radius: 13px; padding: 13px 15px; border: 1px solid var(--line); background: var(--paper-2); }
.answer-panel.is-correct { border-color: color-mix(in srgb, var(--teal) 45%, var(--line)); background: var(--teal-soft); }
.answer-panel.is-wrong { border-color: color-mix(in srgb, #c84a32 45%, var(--line)); background: color-mix(in srgb, #c84a32 8%, var(--card)); }
.answer-head { display: flex; align-items: center; gap: 7px; font-size: 0.9rem; }
.answer-panel.is-correct .answer-head { color: var(--teal); }
.answer-panel.is-wrong .answer-head { color: #b3341f; }
[data-theme='dark'] .answer-panel.is-wrong .answer-head { color: #ff8b74; }
[data-theme='dark'] .hero-copy h1 {
  background-image: linear-gradient(transparent 74%, color-mix(in srgb, var(--gold) 26%, transparent) 74%);
}

/* Inline soft tints come from content data and are light by design. In dark
   mode, re-tint them against the card surface so text stays readable. */
[data-theme='dark'] .continue-card,
[data-theme='dark'] .stage-unit {
  background: color-mix(in srgb, var(--unit) 16%, var(--card));
}
[data-theme='dark'] .audience-card {
  background: color-mix(in srgb, var(--lang) 16%, var(--card));
}
[data-theme='dark'] .lang-choice.is-active,
[data-theme='dark'] .target-card.is-active {
  background: color-mix(in srgb, var(--lang) 18%, var(--card));
}
[data-theme='dark'] .lang-badge {
  background: color-mix(in srgb, var(--lang) 16%, var(--card));
}
[data-theme='dark'] .unit-icon,
[data-theme='dark'] .done-burst,
[data-theme='dark'] .game-icon,
[data-theme='dark'] .lab-icon,
[data-theme='dark'] .settings-icon,
[data-theme='dark'] .math-practice-icon {
  background: color-mix(in srgb, var(--unit, var(--game, var(--lab, var(--teal)))) 18%, var(--card));
}
.answer-panel p { font-size: 0.86rem; margin-top: 4px; }
.answer-note { font-size: 0.78rem; margin-top: 6px; color: var(--ink-soft); }
.answer-note span { color: var(--muted); }
.worked-steps { margin: 12px 0 0; padding-left: 20px; color: var(--ink-soft); font-size: 0.86rem; display: grid; gap: 6px; }
.worked-steps.small { font-size: 0.8rem; }
.done-stage { display: grid; place-items: center; padding-top: 10px; }
.done-card { width: min(660px, 100%); text-align: center; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 38px; box-shadow: var(--shadow-md); }
.done-burst { width: 64px; height: 64px; border-radius: 50%; background: var(--unit-soft, var(--teal-soft)); color: var(--unit, var(--teal)); display: grid; place-items: center; margin: 0 auto 16px; }
.done-card h1 { font-family: var(--serif); font-size: 2.7rem; font-weight: 400; line-height: 1; margin: 8px 0; }
.done-card > p { color: var(--muted); font-size: 0.9rem; }
.done-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 24px 0; }
.done-stats div { background: var(--paper-2); border-radius: 12px; padding: 12px; }
.done-stats strong { display: block; font-family: var(--serif); font-size: 1.7rem; font-weight: 400; }
.done-stats span { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); }
.done-tip { display: flex; gap: 12px; text-align: left; background: var(--gold-soft); border-radius: 14px; padding: 14px; margin-bottom: 22px; }
.done-tip-icon { color: var(--gold); flex: none; }
.done-tip strong { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--gold); }
.done-tip p { font-size: 0.86rem; color: var(--ink-soft); margin-top: 3px; }
.done-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.review-stage { max-width: 760px; margin: 0 auto; }
.review-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; margin-bottom: 14px; }
.review-head h1 { font-family: var(--serif); font-size: 2rem; font-weight: 400; max-width: 20ch; line-height: 1.05; margin-top: 5px; }
.review-count { font-size: 0.74rem; color: var(--muted); font-weight: 600; }
.review-empty { text-align: center; padding: 40px; }
.review-empty h1 { font-family: var(--serif); font-size: 2.2rem; font-weight: 400; margin: 12px 0 6px; }
.review-empty p { color: var(--muted); margin-bottom: 20px; }
.review-empty .row-actions { justify-content: center; }
.review-done .done-burst { background: var(--teal-soft); color: var(--teal); }

/* ---------- Phrasebook ---------- */
.phrase-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 14px; }
.search-box { display: flex; align-items: center; gap: 9px; flex: 1; min-width: 240px; background: var(--card); border: 1px solid var(--line-strong); border-radius: 999px; padding: 0 15px; color: var(--muted); }
.search-box input { flex: 1; border: none; background: transparent; outline: none; padding: 11px 0; font-size: 0.9rem; color: var(--ink); }
.segmented { display: inline-flex; gap: 2px; background: var(--card-2); border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.segment { display: inline-flex; align-items: center; gap: 5px; border: none; background: transparent; border-radius: 999px; padding: 7px 13px; font-size: 0.78rem; font-weight: 600; color: var(--muted); }
.segment.is-active { background: var(--card); color: var(--ink); box-shadow: var(--shadow-sm); }
.save-filter { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line-strong); background: var(--card); border-radius: 999px; padding: 9px 14px; font-size: 0.78rem; font-weight: 600; color: var(--muted); }
.save-filter.is-active { border-color: var(--gold); color: var(--gold); background: var(--gold-soft); }
.filter-row { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 6px; scrollbar-width: none; margin-bottom: 8px; }
.filter-row::-webkit-scrollbar { display: none; }
.filter-chip { flex: none; border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 6px 11px; font-size: 0.72rem; font-weight: 600; color: var(--muted); transition: 0.15s; }
.filter-chip:hover { border-color: var(--ink-soft); color: var(--ink); }
.filter-chip.is-active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.phrase-count { font-size: 0.7rem; color: var(--muted); margin: 4px 0 10px; }
.phrase-list { display: grid; gap: 8px; }
.phrase-row { display: flex; gap: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; transition: 0.16s; }
.phrase-row:hover { border-color: var(--line-strong); }
.phrase-row-main { flex: 1; min-width: 0; }
.phrase-row-top { display: flex; align-items: baseline; gap: 9px; flex-wrap: wrap; }
.phrase-lang { width: 24px; height: 24px; border-radius: 7px; display: inline-grid; place-items: center; background: color-mix(in srgb, var(--lang) 12%, var(--card)); color: var(--lang); font-size: 0.6rem; font-weight: 800; }
.phrase-term { font-family: var(--serif); font-size: 1.55rem; line-height: 1.05; }
.phrase-say { font-size: 0.7rem; color: var(--coral); font-weight: 600; }
.phrase-native { font-size: 0.86rem; color: var(--ink-soft); margin-top: 1px; }
.phrase-others { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: 7px; font-size: 0.73rem; color: var(--muted); }
.phrase-others b { font-weight: 800; font-size: 0.58rem; color: var(--line-strong); }
.phrase-variants { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.phrase-variants span { font-size: 0.7rem; padding: 2px 7px; border-radius: 6px; background: var(--paper-2); border: 1px solid var(--line); color: var(--ink-soft); }
.phrase-variants span.is-local { border-color: var(--gold); background: var(--gold-soft); }
.phrase-variants em { font-style: normal; color: var(--muted); font-size: 0.62rem; }
.phrase-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 8px; font-size: 0.68rem; color: var(--muted); }
.phrase-meta a { display: inline-flex; align-items: center; gap: 4px; }
.local-badge { display: inline-flex; align-items: center; gap: 3px; color: var(--gold); }
.phrase-row-side { display: flex; flex-direction: column; align-items: flex-end; justify-content: space-between; gap: 8px; flex: none; }
.phrase-audio { display: flex; gap: 3px; }
.phrase-audio .icon-btn { width: 32px; height: 32px; border-color: transparent; background: transparent; }
.saved-btn { width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--muted); display: grid; place-items: center; }
.saved-btn .icon { fill: none; }
.saved-btn.is-saved { color: var(--gold); background: var(--gold-soft); border-color: var(--gold); }
.saved-btn.is-saved .icon { fill: var(--gold); }

/* ---------- Practice & games ---------- */
.game-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 34px; }
.game-card { display: flex; flex-direction: column; gap: 14px; min-height: 210px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; transition: 0.18s; }
.game-card:hover { transform: translateY(-5px) rotate(-0.6deg); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--game) 40%, var(--line)); }
.game-card-top { display: flex; justify-content: space-between; align-items: flex-start; }
.game-icon { width: 46px; height: 46px; border-radius: 13px; background: var(--game-soft); color: var(--game); display: grid; place-items: center; }
.game-tag { font-size: 0.6rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.game-copy h2 { font-family: var(--serif); font-size: 1.6rem; font-weight: 400; }
.game-copy p { font-size: 0.8rem; color: var(--muted); margin-top: 2px; }
.game-foot { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line); font-size: 0.72rem; font-weight: 600; color: var(--muted); }
.game-arrow { color: var(--game); }
.mini-lab-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 30px; }
.mini-lab { display: flex; align-items: center; gap: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 13px; padding: 11px 14px; }
.mini-lab:hover { border-color: var(--lab); }
.mini-lab-icon { width: 32px; height: 32px; border-radius: 9px; background: color-mix(in srgb, var(--lab) 12%, var(--card)); color: var(--lab); display: grid; place-items: center; flex: none; }
.mini-lab-copy strong { display: block; font-size: 0.8rem; }
.mini-lab-copy small { display: block; font-size: 0.68rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 260px; }
.mini-lab > .icon { margin-left: auto; color: var(--muted); }
.daily-challenge { display: flex; align-items: center; justify-content: space-between; gap: 20px; border-radius: var(--radius-lg); background: var(--indigo-soft); border: 1px solid color-mix(in srgb, var(--indigo) 22%, transparent); padding: 28px; }
.daily-challenge h2 { font-family: var(--serif); font-size: 1.9rem; font-weight: 400; }
.daily-challenge p { font-size: 0.84rem; color: var(--ink-soft); max-width: 56ch; }
.game-shell { min-height: 100vh; display: flex; flex-direction: column; }
.game-topbar { display: flex; align-items: center; gap: 14px; padding: 12px 20px; border-bottom: 1px solid var(--line); }
.game-title { display: flex; align-items: center; gap: 8px; }
.game-title h1 { font-family: var(--serif); font-size: 1.5rem; font-weight: 400; }
.game-title span { color: var(--game); }
.game-hud { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.hud-pill { display: inline-flex; align-items: center; gap: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 5px 10px; font-size: 0.72rem; font-weight: 600; color: var(--ink-soft); }
.hud-score { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.game-root { flex: 1; width: 100%; max-width: 860px; margin: 0 auto; padding: 30px 22px 70px; }
.game-start { min-height: 60vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 10px; }
.game-start-icon { width: 82px; height: 82px; border-radius: 24px; display: grid; place-items: center; background: color-mix(in srgb, var(--game) 13%, var(--card)); color: var(--game); margin-bottom: 8px; }
.game-start h1 { font-family: var(--serif); font-size: clamp(2.4rem, 5vw, 3.4rem); font-weight: 400; line-height: 1; }
.game-start > p { color: var(--muted); max-width: 46ch; font-size: 0.9rem; }
.game-rules { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 18px; margin: 14px 0 8px; }
.game-rules span { display: inline-flex; align-items: center; gap: 5px; font-size: 0.74rem; color: var(--muted); }
.game-rules .icon { color: var(--teal); }
.match-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.match-card { min-height: 94px; border: 1px solid var(--line); background: var(--card); border-radius: 13px; padding: 10px; display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; text-align: left; transition: 0.15s; }
.match-card.target { background: color-mix(in srgb, var(--game) 8%, var(--card)); border-color: color-mix(in srgb, var(--game) 22%, var(--line)); }
.match-card:hover { transform: translateY(-2px); border-color: var(--game); }
.match-card.is-picked { border-color: var(--game); box-shadow: 0 0 0 3px color-mix(in srgb, var(--game) 20%, transparent); }
.match-card.is-matched { opacity: 0.45; border-color: var(--teal); background: var(--teal-soft); transform: scale(0.97); }
.match-card.is-wrong { border-color: #c84a32; background: color-mix(in srgb, #c84a32 10%, var(--card)); }
.match-lang { font-size: 0.56rem; font-weight: 800; color: var(--muted); letter-spacing: 0.08em; }
.match-text { font-size: 0.8rem; font-weight: 600; line-height: 1.25; }
.match-card.target .match-text { font-family: var(--serif); font-size: 1.15rem; font-weight: 400; }
.game-hint { text-align: center; font-size: 0.74rem; color: var(--muted); margin-top: 16px; }
.game-board-wrap { max-width: 760px; margin: 0 auto; }
.echo-game { display: flex; flex-direction: column; align-items: center; }
.game-prompt-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; color: var(--muted); margin-bottom: 16px; }
.echo-orb { display: flex; flex-direction: column; align-items: center; gap: 7px; padding: 8px 0 24px; }
.echo-options { width: min(520px, 100%); display: grid; gap: 8px; }
.blitz-game { max-width: 640px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; }
.blitz-word { font-family: var(--serif); font-size: clamp(3rem, 8vw, 4.4rem); line-height: 1; margin: 6px 0 30px; text-align: center; }
.blitz-options { width: 100%; display: grid; gap: 8px; }
.memory-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; max-width: 620px; margin: 0 auto; }
.memory-card { aspect-ratio: 1 / 0.8; border: 1px solid var(--line); background: var(--paper-2); border-radius: 13px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; padding: 8px; text-align: center; }
.memory-card.is-face { background: var(--card); border-color: var(--line-strong); }
.memory-card.is-matched { border-color: var(--teal); background: var(--teal-soft); }
.memory-back { color: var(--line-strong); }
.memory-lang { font-size: 0.55rem; font-weight: 800; color: var(--muted); letter-spacing: 0.08em; }
.memory-card > span:last-child { font-size: 0.78rem; font-weight: 600; line-height: 1.2; }
.rain-game { max-width: 600px; margin: 0 auto; }
.rain-sky { position: relative; height: 330px; border-radius: var(--radius-lg); background: linear-gradient(180deg, color-mix(in srgb, var(--teal) 8%, var(--card)), var(--card)); border: 1px solid var(--line); overflow: hidden; }
.rain-word { position: absolute; left: 50%; top: 10px; transform: translateX(-50%); animation: fall 8s linear forwards; display: flex; flex-direction: column; align-items: center; background: var(--ink); color: var(--paper); padding: 14px 22px; border-radius: 16px; box-shadow: var(--shadow-md); }
.rain-word.is-caught { animation-play-state: paused; opacity: 0; transition: opacity 0.4s; }
.rain-lang { font-size: 0.58rem; letter-spacing: 0.08em; opacity: 0.6; }
.rain-word span:last-child { font-family: var(--serif); font-size: 1.6rem; }
@keyframes fall { from { top: 8px; } to { top: 250px; } }
.rain-ground { position: absolute; bottom: 0; left: 0; right: 0; height: 22px; background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 14px); opacity: 0.8; }
.rain-timer { height: 4px; background: var(--line); border-radius: 99px; margin: 12px 0; overflow: hidden; }
.rain-timer span { display: block; height: 100%; background: var(--coral); }
.rain-input-row { display: flex; gap: 8px; }
.rain-input-row .text-input { flex: 1; }
.rain-miss { background: var(--coral-soft); color: var(--ink); border-radius: 12px; padding: 14px; text-align: center; font-size: 0.9rem; }
.is-shaking { animation: shake 0.3s; }
.game-result { text-align: center; padding-top: 40px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.result-icon { width: 76px; height: 76px; border-radius: 50%; display: grid; place-items: center; background: var(--gold-soft); color: var(--gold); margin-bottom: 6px; }
.game-result h1 { font-family: var(--serif); font-size: 2.6rem; font-weight: 400; line-height: 1; }
.new-best { display: inline-flex; align-items: center; gap: 5px; background: var(--gold-soft); color: var(--gold); font-size: 0.72rem; font-weight: 700; border-radius: 999px; padding: 4px 10px; }
.result-stats { display: flex; gap: 30px; margin: 18px 0; }
.result-stats strong { display: block; font-family: var(--serif); font-size: 2rem; font-weight: 400; }
.result-stats span { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }

/* ---------- Labs ---------- */
.lab-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.lab-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; gap: 5px; min-height: 220px; transition: 0.18s; }
.lab-card:hover { transform: translateY(-5px) rotate(-0.6deg); box-shadow: var(--shadow-md); border-color: var(--lab); }
.lab-card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 8px; }
.lab-icon { width: 46px; height: 46px; border-radius: 13px; background: var(--lab-soft); color: var(--lab); display: grid; place-items: center; }
.lab-index { font-size: 0.66rem; font-weight: 800; color: var(--muted); }
.lab-tag { font-size: 0.58rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--lab); }
.lab-card h2 { font-family: var(--serif); font-size: 1.45rem; font-weight: 400; }
.lab-card p { font-size: 0.78rem; color: var(--muted); }
.lab-card-foot { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line); font-size: 0.7rem; font-weight: 600; color: var(--muted); }
.lab-card-foot .icon { color: var(--lab); }
.lab-note { display: flex; gap: 14px; align-items: flex-start; margin-top: 24px; padding: 20px; border-radius: var(--radius); border: 1px dashed var(--line-strong); background: color-mix(in srgb, var(--card) 50%, transparent); }
.lab-note-icon { color: var(--teal); flex: none; }
.lab-note h3 { font-family: var(--serif); font-size: 1.3rem; font-weight: 400; }
.lab-note p { font-size: 0.82rem; color: var(--muted); }
.lab-count strong { font-family: var(--serif); font-size: 2rem; font-weight: 400; }
.lab-count strong span { color: var(--muted); font-size: 1rem; }
.lab-count small { display: block; font-size: 0.66rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.lab-page-head { align-items: flex-start; }
.lab-hero-icon { width: 68px; height: 68px; border-radius: 20px; display: grid; place-items: center; background: var(--indigo-soft); color: var(--indigo); }
.lab-two-col { display: grid; grid-template-columns: 280px 1fr; gap: 16px; align-items: start; }
.sound-aside { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; display: flex; flex-direction: column; gap: 6px; }
.sound-aside .mini-label { margin-bottom: 6px; }
.sound-tile { display: flex; align-items: center; gap: 10px; border: 1px solid transparent; background: transparent; border-radius: 10px; padding: 8px; text-align: left; }
.sound-tile:hover { background: var(--paper-2); }
.sound-tile.is-active { background: var(--indigo-soft); border-color: color-mix(in srgb, var(--indigo) 30%, transparent); }
.sound-symbol { width: 40px; font-family: var(--serif); font-size: 1.2rem; color: var(--indigo); flex: none; }
.sound-hint { font-size: 0.7rem; color: var(--muted); }
.sound-detail { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; }
.sound-hero { display: flex; gap: 20px; align-items: center; border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.sound-big { font-family: var(--serif); font-size: 4rem; line-height: 1; color: var(--indigo); flex: none; min-width: 100px; text-align: center; }
.sound-hero h2 { font-family: var(--serif); font-size: 1.8rem; font-weight: 400; }
.sound-hero p { font-size: 0.8rem; color: var(--muted); }
.sound-words { display: grid; gap: 6px; margin: 18px 0; }
.sound-word { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper-2); cursor: pointer; }
.sound-word > span { font-size: 1.05rem; font-weight: 600; }
.sound-word .icon-btn { width: 30px; height: 30px; }
.lab-cta-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 16px; }
.lab-cta-row.centered { justify-content: center; }
.drill-card { max-width: 640px; margin: 0 auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm); }
.drill-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 18px; }
.drill-count { font-size: 0.72rem; color: var(--muted); font-weight: 600; }
.drill-score { font-size: 0.72rem; font-weight: 700; color: var(--teal); }
.sound-drill-prompt { text-align: center; padding: 10px 0 24px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.sound-choices { max-width: 420px; margin: 0 auto; }
.drill-feedback { text-align: center; font-size: 0.8rem; margin-top: 10px; }
.drill-feedback.good { color: var(--teal); }
.drill-feedback.bad { color: #b3341f; }
.lab-result { text-align: center; padding: 50px 20px; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.lab-result h2 { font-family: var(--serif); font-size: 2.5rem; font-weight: 400; }
.lab-result p { color: var(--muted); font-size: 0.86rem; }
.sentence-lab { max-width: 720px; }
.sentence-native { font-family: var(--serif); font-size: 1.5rem; color: var(--muted); margin-bottom: 16px; }
.sentence-slots { min-height: 90px; border: 1px dashed var(--line-strong); border-radius: 14px; padding: 12px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 16px; background: var(--paper-2); }
.sentence-slots.is-correct { border-color: var(--teal); background: var(--teal-soft); }
.sentence-slots.is-wrong { border-color: #c84a32; background: color-mix(in srgb, #c84a32 6%, var(--card)); }
.sentence-placeholder { font-size: 0.8rem; color: var(--muted); }
.sentence-answer { width: 100%; font-size: 0.78rem; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 8px; margin-top: 4px; }
.sentence-correct-line { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--teal); margin-bottom: 10px; }
.word-bank { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.word-chip { border: 1px solid var(--line-strong); background: var(--card); border-radius: 9px; padding: 7px 10px; font-size: 0.88rem; font-weight: 500; }
.word-chip:hover:not(:disabled) { border-color: var(--teal); }
.word-chip.is-used { opacity: 0.3; }
.sentence-slots .word-chip { background: var(--card); }
.verb-lab { display: grid; gap: 16px; }
.verb-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.verb-note { display: flex; gap: 9px; align-items: flex-start; background: var(--gold-soft); border-radius: 12px; padding: 12px 14px; font-size: 0.82rem; color: var(--ink-soft); }
.verb-note .icon { color: var(--gold); flex: none; }
.verb-table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.verb-table { width: 100%; border-collapse: collapse; min-width: 480px; }
.verb-table th, .verb-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); font-size: 0.86rem; }
.verb-table thead th { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); background: var(--paper-2); }
.verb-table tbody th { font-weight: 600; color: var(--muted); width: 110px; }
.verb-table tbody tr:last-child th, .verb-table tbody tr:last-child td { border-bottom: none; }
.verb-table td { font-weight: 600; color: var(--ink); }
.verb-verb-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.verb-verb-head strong { font-family: var(--serif); font-size: 1.4rem; font-weight: 400; }
.verb-question { display: flex; align-items: center; gap: 12px; margin: 14px 0 4px; }
.verb-pronoun { font-size: 1.3rem; font-weight: 600; }
.verb-plus { color: var(--muted); }
.verb-inf { font-family: var(--serif); font-size: 2rem; color: var(--coral); }
.verb-tense-label { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 16px; }
.dialect-lab { display: grid; grid-template-columns: 220px 1fr; gap: 18px; align-items: start; }
.dialect-concepts { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.concept-chips { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; max-height: 460px; overflow-y: auto; }
.concept-chips .filter-chip { text-align: left; }
.dialect-detail { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; }
.dialect-detail-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 20px; }
.dialect-detail-head h2 { font-family: var(--serif); font-size: 2.2rem; font-weight: 400; line-height: 1; }
.dialect-detail-head p { font-size: 0.84rem; color: var(--muted); }
.dialect-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.dialect-standard, .dialect-card.big { background: var(--paper-2); border: 1px solid var(--line); border-radius: 13px; padding: 14px; display: flex; flex-direction: column; gap: 4px; }
.dialect-standard { border-style: dashed; }
.dialect-card.big .dialect-term { font-size: 1.6rem; }
.dialect-note { font-size: 0.68rem; color: var(--muted); }
.dialect-card .icon-btn { width: 28px; height: 28px; margin-top: 4px; }
.dialect-foot { display: flex; align-items: center; gap: 6px; font-size: 0.74rem; color: var(--muted); margin-top: 16px; }
.dialect-quiz-prompt { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 18px 0 22px; }
.dialect-big-term { font-family: var(--serif); font-size: 2.6rem; line-height: 1; color: var(--gold); }

/* Alphabet Lab */
.alphabet-intro { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; padding: 16px 18px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.alphabet-intro p { font-size: 0.84rem; color: var(--ink-soft); }
.alphabet-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 8px; }
.letter-card { position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 3px; padding: 13px; background: var(--card); border: 1px solid var(--line); border-radius: 13px; cursor: pointer; transition: 0.15s; }
.letter-card:hover { transform: translateY(-2px); border-color: var(--indigo); box-shadow: var(--shadow-sm); }
.letter-name { font-family: var(--serif); font-size: 1.9rem; line-height: 1; color: var(--indigo); }
.letter-word { font-size: 0.74rem; color: var(--muted); }
.letter-speak { position: absolute; top: 9px; right: 9px; width: 26px; height: 26px; }
.alphabet-choices { max-width: 420px; margin: 0 auto; }
.dictation-game { display: flex; flex-direction: column; align-items: center; max-width: 560px; margin: 0 auto; }
.dictation-game .type-answer { width: 100%; }

/* ---------- Forum ---------- */
.forum-hero { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 30px; align-items: center; border-radius: var(--radius-lg); background: var(--indigo-soft); border: 1px solid color-mix(in srgb, var(--indigo) 20%, transparent); padding: 40px; margin-bottom: 36px; overflow: hidden; position: relative; }
.forum-hero-copy h1 { font-family: var(--serif); font-size: clamp(2.6rem, 4.6vw, 4rem); line-height: 0.97; font-weight: 400; letter-spacing: -0.02em; margin: 12px 0; }
.forum-hero-copy > p { color: var(--ink-soft); max-width: 54ch; }
.forum-hero-stats { display: flex; gap: 24px; margin: 22px 0 4px; flex-wrap: wrap; }
.forum-hero-stats span { font-size: 0.76rem; color: var(--muted); }
.forum-hero-stats strong { color: var(--ink); font-size: 1rem; }
.forum-hero-art { position: relative; display: flex; align-items: center; justify-content: center; gap: 14px; min-height: 240px; }
.forum-column { display: flex; flex-direction: column; gap: 10px; }
.forum-column span { width: 46px; height: 46px; border-radius: 13px; background: var(--card); display: grid; place-items: center; color: var(--indigo); box-shadow: var(--shadow-sm); }
.forum-big-mark { width: 150px; height: 150px; border-radius: 50%; background: color-mix(in srgb, var(--indigo) 16%, var(--card)); display: grid; place-items: center; color: var(--indigo); }
.forum-section { margin-bottom: 38px; }
.forum-tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.forum-tool-card { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; display: flex; flex-direction: column; gap: 5px; min-height: 158px; transition: 0.18s; }
.forum-tool-card:hover { transform: translateY(-4px) rotate(-0.6deg); border-color: var(--tool); box-shadow: var(--shadow-sm); }
.forum-tool-icon { width: 38px; height: 38px; border-radius: 11px; background: color-mix(in srgb, var(--tool) 12%, var(--card)); color: var(--tool); display: grid; place-items: center; margin-bottom: 5px; }
.forum-tool-card strong { font-size: 0.9rem; }
.forum-tool-card p { font-size: 0.76rem; color: var(--muted); max-width: 34ch; }
.forum-tool-arrow { position: absolute; right: 14px; top: 18px; color: var(--muted); }
.forum-tracks { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.forum-track { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.forum-track-head { display: flex; gap: 11px; margin-bottom: 12px; }
.forum-track-icon { width: 38px; height: 38px; border-radius: 10px; background: color-mix(in srgb, var(--track) 13%, var(--card)); color: var(--track); display: grid; place-items: center; flex: none; }
.forum-track-head h3 { font-family: var(--serif); font-size: 1.4rem; font-weight: 400; line-height: 1.1; }
.forum-track-head p { font-size: 0.73rem; color: var(--muted); }
.forum-session-list { display: flex; flex-direction: column; gap: 2px; }
.forum-session-row { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 9px; }
.forum-session-row:hover { background: var(--paper-2); }
.forum-session-num { width: 26px; height: 26px; border-radius: 50%; background: var(--paper-2); display: grid; place-items: center; font-size: 0.6rem; font-weight: 800; color: var(--muted); flex: none; }
.forum-session-row.is-done .forum-session-num { background: var(--teal-soft); color: var(--teal); }
.forum-session-copy { flex: 1; }
.forum-session-copy strong { display: block; font-size: 0.8rem; font-weight: 600; }
.forum-session-copy small { font-size: 0.64rem; color: var(--muted); }
.forum-session-go { color: var(--muted); }
.forum-quote { text-align: center; max-width: 760px; margin: 50px auto 20px; padding: 20px; }
.forum-quote p { font-family: var(--serif); font-size: clamp(1.4rem, 2.6vw, 2rem); line-height: 1.35; }
.forum-quote footer { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-top: 14px; }
.forum-session-page { max-width: 1040px; }
.forum-session-head { display: flex; align-items: flex-start; gap: 14px; padding: 22px; border-radius: var(--radius); background: color-mix(in srgb, var(--track) 8%, var(--card)); border: 1px solid color-mix(in srgb, var(--track) 22%, var(--line)); margin-bottom: 26px; }
.forum-session-head h1 { font-family: var(--serif); font-size: clamp(1.9rem, 3.6vw, 2.8rem); font-weight: 400; line-height: 1; margin: 4px 0; }
.forum-session-head p { font-size: 0.86rem; color: var(--ink-soft); max-width: 70ch; }
.session-done { margin-left: auto; display: inline-flex; align-items: center; gap: 4px; font-size: 0.7rem; font-weight: 700; color: var(--teal); background: var(--teal-soft); border-radius: 999px; padding: 4px 9px; flex: none; }
.forum-session-layout { display: grid; grid-template-columns: 1fr 330px; gap: 24px; align-items: start; }
.forum-principles h2 { font-family: var(--serif); font-size: 1.7rem; font-weight: 400; margin-bottom: 12px; }
.principle-card { display: flex; gap: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; margin-bottom: 8px; }
.principle-num { font-family: var(--serif); font-size: 1.5rem; color: var(--coral); flex: none; line-height: 1.2; }
.principle-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 3px; }
.principle-card p { font-size: 0.85rem; color: var(--ink-soft); }
.forum-session-side { display: flex; flex-direction: column; gap: 12px; }
.drill-box { background: var(--gold-soft); border: 1px solid color-mix(in srgb, var(--gold) 25%, var(--line)); border-radius: var(--radius); padding: 20px; }
.drill-box h3 { font-family: var(--serif); font-size: 1.35rem; font-weight: 400; margin: 5px 0; }
.drill-box p { font-size: 0.82rem; color: var(--ink-soft); margin-bottom: 14px; }
.forum-side-links { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 13px; overflow: hidden; }
.forum-side-links a { display: flex; align-items: center; gap: 8px; padding: 11px 14px; font-size: 0.78rem; font-weight: 600; border-bottom: 1px solid var(--line); }
.forum-side-links a:last-child { border-bottom: none; }
.forum-side-links a:hover { background: var(--paper-2); }
.forum-side-links a .icon:last-child { margin-left: auto; color: var(--muted); }
.next-session { display: flex; align-items: center; gap: 8px; background: var(--card); border: 1px solid var(--line); border-radius: 13px; padding: 12px 14px; }
.next-session strong { font-size: 0.8rem; flex: 1; }
.next-session .icon:last-child { color: var(--muted); }
.forum-guide-page { max-width: 1040px; }
.guide-toolbar { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; margin-bottom: 18px; }
.guide-toolbar .search-box { max-width: 320px; }
.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.guide-card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.guide-card h3 { font-size: 0.92rem; font-weight: 700; }
.guide-card p { font-size: 0.82rem; color: var(--ink-soft); margin-top: 4px; }
.guide-card blockquote { margin: 9px 0 0; padding: 8px 10px; border-left: 3px solid var(--gold); background: var(--paper-2); font-family: var(--serif); font-size: 0.92rem; color: var(--ink-soft); }

/* ---------- Forum tools ---------- */
.tool-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 16px; align-items: start; }
.tool-panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.tool-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.tool-panel-head h2 { font-family: var(--serif); font-size: 1.6rem; font-weight: 400; }
.tool-meter { font-size: 0.72rem; font-weight: 800; color: var(--teal); background: var(--teal-soft); border-radius: 999px; padding: 3px 8px; }
.tool-textarea { margin-top: 6px; }
.tool-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 14px; }
.arg-block { margin-top: 14px; padding: 14px; border: 1px dashed var(--line-strong); border-radius: 12px; display: flex; flex-direction: column; gap: 6px; }
.arg-block .text-input + .text-input { margin-top: 4px; }
.tool-preview { position: sticky; top: 80px; }
.outline-q { font-family: var(--serif); font-size: 1.4rem; line-height: 1.25; margin-bottom: 14px; }
.outline-thesis { border-left: 3px solid var(--coral); padding-left: 12px; margin-bottom: 14px; }
.outline-thesis p { font-size: 0.86rem; }
.outline-claim { display: flex; gap: 10px; margin-bottom: 12px; }
.outline-num { width: 22px; height: 22px; border-radius: 50%; background: var(--teal); color: #fff; display: grid; place-items: center; font-size: 0.68rem; font-weight: 800; flex: none; }
.outline-claim strong { font-size: 0.88rem; }
.outline-claim p { font-size: 0.78rem; color: var(--ink-soft); margin-top: 3px; }
.outline-counter { background: var(--paper-2); border-radius: 10px; padding: 10px; margin-top: 10px; }
.outline-counter p { font-size: 0.8rem; color: var(--ink-soft); }
.tool-preview .muted.small { margin-top: 8px; }
.speech-textarea { min-height: 340px; font-size: 0.95rem; }
.speech-structure { margin-top: 20px; border-top: 1px solid var(--line); padding-top: 14px; }
.check-row { display: flex; align-items: flex-start; gap: 8px; font-size: 0.8rem; color: var(--ink-soft); padding: 5px 0; cursor: pointer; }
.check-row input { accent-color: var(--coral); margin-top: 2px; }
.check-row.large { padding: 8px 0; font-size: 0.86rem; }
.speech-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 18px; }
.speech-stats div { background: var(--paper-2); border-radius: 10px; padding: 10px; }
.speech-stats strong { display: block; font-family: var(--serif); font-size: 1.4rem; font-weight: 400; line-height: 1; }
.speech-stats span { font-size: 0.64rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.speech-tips h3 { font-size: 0.88rem; font-weight: 700; margin-bottom: 6px; }
.speech-tip { display: flex; gap: 7px; align-items: flex-start; font-size: 0.8rem; color: var(--ink-soft); padding: 5px 0; }
.speech-tip .icon { color: var(--gold); flex: none; margin-top: 2px; }
.debate-sides { width: 100%; margin-bottom: 12px; }
.debate-sides .segment { flex: 1; justify-content: center; }
.debate-note { display: flex; gap: 8px; align-items: flex-start; font-size: 0.78rem; color: var(--muted); background: var(--paper-2); border-radius: 10px; padding: 10px; margin: 14px 0; }
.debate-note .icon { color: var(--gold); flex: none; }
.debate-notes-wrap { margin-top: 18px; }
.debate-stage-panel { min-height: 380px; display: flex; flex-direction: column; justify-content: center; }
.debate-placeholder { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--muted); }
.debate-placeholder h2 { font-family: var(--serif); font-size: 1.8rem; font-weight: 400; color: var(--ink); }
.debate-placeholder p { font-size: 0.82rem; max-width: 36ch; }
.debate-live { text-align: center; }
.debate-live-top { display: flex; justify-content: space-between; align-items: center; }
.debate-side-pill { font-size: 0.66rem; font-weight: 700; background: var(--teal-soft); color: var(--teal); padding: 3px 8px; border-radius: 999px; }
.debate-motion-text { font-family: var(--serif); font-size: 1.35rem; font-weight: 400; line-height: 1.25; margin: 16px 0; }
.debate-clock { font-family: var(--serif); font-size: 4rem; line-height: 1; color: var(--coral); }
.debate-stage-name { font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.debate-prompt { font-size: 0.84rem; color: var(--ink-soft); margin: 8px auto 16px; max-width: 38ch; }
.debate-controls { display: flex; justify-content: center; gap: 8px; }
.debate-ballot { display: flex; flex-direction: column; gap: 6px; }
.debate-ballot h2 { font-family: var(--serif); font-size: 1.5rem; font-weight: 400; margin-bottom: 8px; }
.ballot-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; font-size: 0.78rem; padding: 4px 0; }
.ballot-row input { width: 150px; accent-color: var(--teal); }
.ballot-total { margin: 12px 0; font-family: var(--serif); font-size: 1.4rem; }
.ballot-total strong { font-size: 2rem; color: var(--teal); font-weight: 400; }
.source-row { border: 1px dashed var(--line-strong); border-radius: 11px; padding: 10px; margin: 8px 0; display: flex; flex-direction: column; gap: 5px; }
.research-checklist { display: flex; flex-direction: column; gap: 10px; }
.checklist-item strong { font-size: 0.8rem; }
.checklist-item p { font-size: 0.76rem; color: var(--muted); margin-top: 2px; }
.research-sources-ref { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.source-type strong { font-size: 0.78rem; }
.source-type p { font-size: 0.74rem; color: var(--ink-soft); }
.source-type small { font-size: 0.68rem; color: var(--muted); }
.verify-checks { margin-top: 16px; display: flex; flex-direction: column; gap: 4px; }
.verify-gauge { display: flex; align-items: baseline; gap: 4px; color: var(--teal); margin: 10px 0; }
.verify-gauge strong { font-family: var(--serif); font-size: 4rem; font-weight: 400; line-height: 1; }
.verify-gauge span { color: var(--muted); }
.verify-verdict-panel h3 { font-family: var(--serif); font-size: 1.6rem; font-weight: 400; }
.verify-verdict-panel p { font-size: 0.82rem; margin-top: 5px; }

/* ---------- Math ---------- */
.math-hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: center; background: var(--teal-soft); border: 1px solid color-mix(in srgb, var(--teal) 20%, transparent); border-radius: var(--radius-lg); padding: 38px; margin-bottom: 34px; position: relative; overflow: hidden; }
.math-hero h1 { font-family: var(--serif); font-size: clamp(2.5rem, 4.6vw, 4rem); font-weight: 400; line-height: 0.98; letter-spacing: -0.02em; margin: 12px 0; }
.math-hero p { color: var(--ink-soft); max-width: 52ch; }
.math-stats { display: flex; gap: 22px; flex-wrap: wrap; margin: 20px 0 4px; font-size: 0.76rem; color: var(--muted); }
.math-stats strong { color: var(--ink); font-size: 1rem; }
.math-hero-art { position: relative; min-height: 220px; }
.math-grid-art { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 34px 34px; opacity: 0.5; border-radius: 18px; }
.math-sym { position: absolute; font-family: var(--serif); color: var(--teal); opacity: 0.75; }
.sym1 { font-size: 4.4rem; top: 10px; left: 12%; }
.sym2 { font-size: 5.6rem; bottom: 6px; right: 14%; }
.sym3 { font-size: 3rem; top: 28%; right: 24%; }
.sym4 { font-size: 3.4rem; bottom: 18%; left: 20%; }
.math-tracks { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.math-track { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.math-track-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.math-track-title { display: flex; gap: 11px; align-items: center; }
.math-track-icon { width: 40px; height: 40px; border-radius: 11px; background: color-mix(in srgb, var(--track) 13%, var(--card)); color: var(--track); display: grid; place-items: center; flex: none; }
.math-track-title h2 { font-family: var(--serif); font-size: 1.5rem; font-weight: 400; line-height: 1; }
.math-track-pct { font-size: 0.74rem; font-weight: 800; color: var(--track); }
.math-track-blurb { font-size: 0.78rem; color: var(--muted); margin: 8px 0 12px; }
.math-topic-list { display: flex; flex-direction: column; gap: 2px; }
.math-topic-row { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 9px; }
.math-topic-row:hover { background: var(--paper-2); }
.math-topic-num { font-size: 0.6rem; font-weight: 800; color: var(--muted); width: 20px; flex: none; }
.math-topic-copy { flex: 1; min-width: 0; }
.math-topic-copy strong { display: block; font-size: 0.79rem; font-weight: 600; }
.math-topic-copy small { font-size: 0.62rem; color: var(--muted); }
.math-topic-bar { width: 54px; height: 3px; border-radius: 99px; background: var(--line); overflow: hidden; flex: none; }
.math-topic-bar i { display: block; height: 100%; background: var(--track); }
.math-topic-row > .icon { color: var(--muted); flex: none; }
.math-tools { margin-top: 34px; }
.math-tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.math-tool { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 5px; transition: 0.18s; }
.math-tool:hover { transform: translateY(-4px) rotate(-0.6deg); border-color: var(--teal); }
.math-tool-icon { width: 46px; height: 46px; border-radius: 13px; background: var(--teal-soft); color: var(--teal); display: grid; place-items: center; margin-bottom: 6px; }
.math-tool strong { font-family: var(--serif); font-size: 1.45rem; font-weight: 400; }
.math-tool p { font-size: 0.8rem; color: var(--muted); }
.math-tool > .icon { position: absolute; top: 22px; right: 20px; color: var(--muted); }
.math-topic-page { max-width: 1040px; }
.math-topic-head h1 { max-width: 20ch; }
.math-topic-progress { text-align: right; flex: none; }
.math-topic-progress strong { display: block; font-family: var(--serif); font-size: 2rem; font-weight: 400; color: var(--teal); line-height: 1; }
.math-topic-progress span { font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.math-formula { background: var(--ink); color: var(--paper); border-radius: 12px; padding: 13px 18px; font-family: var(--serif); font-size: 1.3rem; margin-bottom: 18px; text-align: center; letter-spacing: 0.02em; }
[data-theme='dark'] .math-formula { background: var(--card-2); border: 1px solid var(--line); }
.math-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.math-example-panel { min-height: 300px; }
.math-difficulty-pill { font-size: 0.66rem; font-weight: 700; color: var(--teal); background: var(--teal-soft); border-radius: 999px; padding: 3px 8px; }
.worked-prompt { font-size: 1.1rem; padding: 14px 0 8px; font-weight: 500; }
.worked-answer { display: flex; align-items: baseline; gap: 8px; padding: 10px 0; }
.worked-answer strong { font-family: var(--serif); font-size: 1.8rem; font-weight: 400; color: var(--teal); }
.math-practice-panel { min-height: 300px; }
.practice-intro { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.math-practice-icon { width: 50px; height: 50px; border-radius: 14px; background: var(--teal-soft); color: var(--teal); display: grid; place-items: center; }
.practice-intro h2 { font-family: var(--serif); font-size: 1.7rem; font-weight: 400; }
.practice-intro p { font-size: 0.84rem; color: var(--muted); }
.difficulty-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin: 8px 0 6px; }
.practice-done { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.practice-done h2 { font-family: var(--serif); font-size: 1.9rem; font-weight: 400; }
.practice-done p { color: var(--muted); font-size: 0.86rem; }
.practice-done-score { font-family: var(--serif); font-size: 3rem; color: var(--teal); line-height: 1; }
.practice-run { display: flex; flex-direction: column; }
.practice-prompt { font-size: 1.3rem; line-height: 1.5; padding: 18px 0 20px; }
.math-input-row { display: flex; align-items: center; gap: 8px; }
.math-input-row .text-input { flex: 1; }
.math-unit { font-size: 0.9rem; color: var(--muted); font-weight: 600; }
.workshop { display: grid; }
.math-tool-page { max-width: 1080px; }
.graph-layout { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 16px; align-items: start; }
.graph-canvas-wrap { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; min-height: 460px; }
.graph-canvas-wrap canvas { display: block; width: 100%; }
.graph-error { position: absolute; bottom: 8px; left: 12px; font-size: 0.72rem; color: #b3341f; }
.graph-controls { display: flex; flex-direction: column; gap: 5px; }
.graph-range { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 6px 0; }
.graph-range label { font-size: 0.68rem; color: var(--muted); font-weight: 600; }
.graph-range .text-input { margin-top: 3px; }
.graph-presets { display: flex; flex-wrap: wrap; gap: 4px; margin: 4px 0 12px; }
.converter-panel { max-width: 760px; }
.converter-row { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: end; margin-top: 16px; }
.converter-side { display: flex; flex-direction: column; gap: 4px; }
.converter-side .field-label { margin-top: 0; }
.swap-round { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); background: var(--card); display: grid; place-items: center; margin-bottom: 1px; }
.swap-round:hover { border-color: var(--teal); }

/* ---------- Progress / settings ---------- */
.profile-banner { display: flex; align-items: center; gap: 26px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 22px 26px; margin-bottom: 14px; flex-wrap: wrap; }
.profile-id { display: flex; align-items: center; gap: 14px; }
.profile-avatar { width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: var(--paper); font-family: var(--serif); font-size: 1.9rem; }
.profile-id h2 { font-family: var(--serif); font-size: 1.8rem; font-weight: 400; line-height: 1.1; }
.profile-tags { display: flex; align-items: center; gap: 6px; margin-top: 3px; }
.profile-level { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.profile-level strong { display: block; font-size: 0.86rem; }
.profile-level span { font-size: 0.68rem; color: var(--muted); }
.profile-streak { display: flex; align-items: center; gap: 5px; padding: 10px 16px; border-radius: 14px; background: var(--gold-soft); color: var(--gold); }
.profile-streak .icon { color: var(--gold); }
.profile-streak strong { font-family: var(--serif); font-size: 1.8rem; font-weight: 400; line-height: 1; }
.profile-streak small { font-size: 0.6rem; color: var(--muted); max-width: 60px; line-height: 1.2; }
.stats-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; margin-bottom: 26px; }
.stat-cell { background: var(--card); border: 1px solid var(--line); border-radius: 13px; padding: 13px; display: flex; flex-direction: column; gap: 1px; }
.stat-cell-icon { color: var(--coral); margin-bottom: 3px; }
.stat-cell strong { font-family: var(--serif); font-size: 1.5rem; font-weight: 400; line-height: 1; }
.stat-cell span:last-child { font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.progress-split { display: grid; grid-template-columns: 1fr 360px; gap: 16px; align-items: start; }
.progress-panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.progress-panel .section-head { margin-top: 0; }
.progress-side { display: flex; flex-direction: column; gap: 16px; }
.mastery-list { display: flex; flex-direction: column; gap: 2px; }
.mastery-row { display: flex; align-items: center; gap: 10px; padding: 7px 6px; border-radius: 8px; }
.mastery-row:hover { background: var(--paper-2); }
.mastery-icon { width: 30px; height: 30px; border-radius: 8px; background: var(--unit-soft); color: var(--unit); display: grid; place-items: center; flex: none; }
.mastery-name { flex: 1; font-size: 0.8rem; font-weight: 600; min-width: 0; }
.mastery-name small { display: block; font-size: 0.64rem; color: var(--muted); font-weight: 400; }
.mastery-bar { width: 100px; height: 4px; border-radius: 99px; background: var(--line); overflow: hidden; flex: none; }
.mastery-bar i { display: block; height: 100%; background: var(--teal); }
.mastery-pct { width: 34px; text-align: right; font-size: 0.68rem; color: var(--muted); font-weight: 600; flex: none; }
.activity-bars { display: flex; align-items: flex-end; gap: 8px; height: 120px; padding-top: 10px; }
.activity-day { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; gap: 5px; }
.activity-bar { width: 100%; max-width: 20px; border-radius: 5px 5px 2px 2px; background: var(--teal-soft); min-height: 4px; }
.activity-day.is-today .activity-bar { background: var(--teal); }
.activity-day small { font-size: 0.6rem; color: var(--muted); }
.progress-mini-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 12px; }
.progress-mini-stats div { background: var(--paper-2); border-radius: 10px; padding: 10px; }
.progress-mini-stats strong { display: block; font-family: var(--serif); font-size: 1.4rem; font-weight: 400; line-height: 1; }
.progress-mini-stats span { font-size: 0.6rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.badges-panel { margin-top: 16px; }
.badge-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.badge-card { border: 1px solid var(--line); border-radius: 12px; padding: 12px; background: var(--paper-2); opacity: 0.6; }
.badge-card.is-earned { opacity: 1; background: var(--card); border-color: color-mix(in srgb, var(--gold) 35%, var(--line)); }
.badge-card.is-locked .badge-icon { color: var(--muted); }
.badge-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--gold-soft); color: var(--gold); display: grid; place-items: center; margin-bottom: 8px; }
.badge-card strong { display: block; font-size: 0.72rem; }
.badge-card p { font-size: 0.64rem; color: var(--muted); margin-top: 2px; }
.settings-layout { display: grid; grid-template-columns: 1fr 340px; gap: 16px; align-items: start; }
.settings-main { display: flex; flex-direction: column; gap: 16px; }
.settings-side { display: flex; flex-direction: column; gap: 16px; }
.settings-panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.settings-panel-head { display: flex; align-items: flex-start; gap: 11px; margin-bottom: 12px; }
.settings-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--paper-2); color: var(--coral); display: grid; place-items: center; flex: none; }
.settings-panel-head h2 { font-family: var(--serif); font-size: 1.5rem; font-weight: 400; line-height: 1.1; }
.settings-panel-head p { font-size: 0.74rem; color: var(--muted); }
.settings-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 4px; }
.settings-pair-preview { display: flex; align-items: center; justify-content: center; gap: 14px; background: var(--paper-2); border-radius: 12px; padding: 14px; margin-top: 18px; }
.goal-options { display: flex; flex-wrap: wrap; gap: 5px; }
.toggle { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 999px; background: var(--paper-2); padding: 4px 10px 4px 4px; font-size: 0.74rem; font-weight: 600; color: var(--muted); }
.toggle-knob { width: 26px; height: 26px; border-radius: 50%; background: var(--line-strong); transition: 0.18s; }
.toggle.is-on { color: var(--teal); border-color: var(--teal); background: var(--teal-soft); }
.toggle.is-on .toggle-knob { background: var(--teal); transform: translateX(32px); }
.about-panel { background: var(--ink); color: var(--paper); border-color: transparent; }
[data-theme='dark'] .about-panel { background: var(--card-2); border: 1px solid var(--line); color: var(--ink); }
.about-mark { display: block; margin-bottom: 14px; }
.about-panel h2 { font-family: var(--serif); font-size: 1.7rem; font-weight: 400; }
.about-panel p { font-size: 0.8rem; opacity: 0.75; margin-top: 6px; }
.about-tags { display: flex; flex-direction: column; gap: 5px; margin-top: 14px; font-size: 0.7rem; opacity: 0.7; }
.about-tags span { display: flex; align-items: center; gap: 5px; }

/* ---------- Toast, modal, effects ---------- */
.toast-stack { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 7px; width: min(420px, calc(100vw - 32px)); pointer-events: none; }
.toast { display: flex; align-items: center; gap: 9px; background: var(--ink); color: var(--paper); border-radius: 999px; padding: 10px 16px; font-size: 0.8rem; font-weight: 500; box-shadow: var(--shadow-md); opacity: 0; transform: translateY(10px); transition: 0.25s; }
[data-theme='dark'] .toast { background: var(--card-2); border: 1px solid var(--line); }
.toast.is-in { opacity: 1; transform: translateY(0); }
.toast-badge .icon { color: var(--gold); }
.toast-success .icon { color: #65d6b5; }
.toast-error .icon { color: #ff8b74; }
.modal-dialog { border: none; background: transparent; padding: 0; max-width: 440px; width: calc(100vw - 32px); }
.modal-dialog::backdrop { background: rgba(20, 15, 10, 0.55); backdrop-filter: blur(3px); }
.modal-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-md); }
.modal-card h2 { font-family: var(--serif); font-size: 1.8rem; font-weight: 400; }
.modal-card p { font-size: 0.86rem; color: var(--muted); margin: 6px 0 20px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; }
.confetti { position: fixed; inset: 0; pointer-events: none; z-index: 300; overflow: hidden; }
.confetti i { position: absolute; top: -12px; left: var(--x); width: 9px; height: 13px; border-radius: 2px; animation: confetti-fall var(--fall) ease-out var(--delay) forwards; transform: rotate(var(--rotate)); }
@keyframes confetti-fall { to { transform: translateY(105vh) rotate(540deg); opacity: 0.7; } }
.fade-in { animation: rise 0.35s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
.empty-state { text-align: center; padding: 44px 20px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.empty-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--paper-2); display: grid; place-items: center; color: var(--muted); margin-bottom: 4px; }
.empty-state h3, .empty-state h1 { font-family: var(--serif); font-size: 1.7rem; font-weight: 400; }
.empty-state p { font-size: 0.84rem; color: var(--muted); max-width: 40ch; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }

/* ---------- Responsive ---------- */
@media (max-width: 1320px) {
  .nav-link span { display: none; }
  .nav-link { padding: 8px; }
}
@media (max-width: 1120px) {
  .topnav { gap: 0; }
  .pair-codes { display: none; }
  .hero { gap: 20px; }
  .how-grid { grid-template-columns: 1fr 1fr; }
  .unit-grid { grid-template-columns: repeat(3, 1fr); }
  .badge-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 960px) {
  .landing-links { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 30px; }
  .hero-copy h1 { max-width: 16ch; }
  .hero-board { min-height: 440px; }
  .board-cards { max-width: 560px; }
  .dialect-section, .labs-preview, .respect-section { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .audience-card { min-height: 180px; }
  .home-layout { grid-template-columns: 1fr; }
  .home-rail { display: grid; grid-template-columns: 1fr 1fr; }
  .continue-copy { max-width: 70%; }
  .onb-grid-two { grid-template-columns: 1fr; }
  .target-grid { grid-template-columns: 1fr; }
  .region-grid { grid-template-columns: repeat(3, 1fr); }
  .goal-grid { grid-template-columns: repeat(3, 1fr); }
  .lesson-stage-head { grid-template-columns: 1fr; }
  .stage-unit { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; align-items: center; }
  .stage-unit-icon { margin-bottom: 0; grid-row: span 2; }
  .stage-unit-kicker { grid-column: 2; }
  .stage-unit h1 { grid-column: 2; font-size: 2rem; }
  .stage-unit p { grid-column: 2; }
  .forum-hero { grid-template-columns: 1fr; padding: 28px; }
  .forum-hero-art { display: none; }
  .forum-tracks { grid-template-columns: 1fr; }
  .forum-session-layout { grid-template-columns: 1fr; }
  .tool-grid, .math-layout, .graph-layout, .progress-split, .settings-layout { grid-template-columns: 1fr; }
  .tool-preview { position: static; }
  .math-tracks { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .lab-grid { grid-template-columns: 1fr 1fr; }
  .game-grid { grid-template-columns: 1fr 1fr; }
  .lab-two-col, .dialect-lab { grid-template-columns: 1fr; }
  .sound-aside { display: grid; grid-template-columns: repeat(3, 1fr); }
  .sound-aside .mini-label { grid-column: 1 / -1; }
  .concept-chips { flex-direction: row; flex-wrap: wrap; max-height: none; }
  .concept-chips .filter-chip { text-align: center; }
}
@media (max-width: 720px) {
  .topbar-inner { padding: 9px 16px; gap: 10px; }
  .topnav { display: none; }
  .topbar-tools { gap: 5px; }
  .stat-chip { display: none; }
  .settings-btn { display: none; }
  .pair-codes { display: inline; font-size: 0.62rem; }
  .pair-dot { display: none; }
  .swap-btn { display: none; }
  .bottomnav { display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 60; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(16px); border-top: 1px solid var(--line); padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); justify-content: space-around; }
  .bottomnav-link { display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 6px 10px; font-size: 0.58rem; font-weight: 600; color: var(--muted); border-radius: 12px; min-width: 56px; }
  .bottomnav-link.is-active { color: var(--coral); background: var(--coral-soft); }
  .page { padding: 24px 16px 92px; }
  .page-head { flex-direction: column; align-items: flex-start; gap: 12px; margin-bottom: 20px; }
  .page-head-side { width: 100%; }
  .page-head-side .btn { width: 100%; }
  .hero { padding: 20px 16px 30px; }
  .hero-copy h1 { font-size: clamp(2.5rem, 11vw, 3.6rem); }
  .hero-board { min-height: 400px; }
  .board-cards { height: 370px; }
  .hero-word-card { width: 170px; padding: 12px; }
  .hw-word { font-size: 1.8rem; }
  .hw-pron { font-size: 0.6rem; }
  .card-0 { left: 0; }
  .card-1 { right: 0; }
  .card-2 { left: 2%; }
  .card-3 { right: 2%; }
  .board-caption { font-size: 0.62rem; padding: 6px 10px 6px 6px; }
  .board-sticker { font-size: 0.64rem; padding: 6px 10px; top: -16px; }
  .home-sticker { font-size: 0.66rem; }
  .landing-section { padding: 50px 16px; }
  .how-grid { grid-template-columns: 1fr; }
  .dialect-grid { grid-template-columns: 1fr 1fr; }
  .landing-footer { padding: 26px 16px 80px; flex-direction: column; align-items: flex-start; }
  .landing-footer .footer-small { margin-left: 0; }
  .landing-actions .preview-langs { display: none; }
  .onb-nav { padding: 14px 16px; }
  .onb-main { padding: 16px 16px 20px; }
  .onb-step-head h1 { font-size: 2.3rem; }
  .onb-panel { padding: 18px; }
  .lang-choice-grid { grid-template-columns: 1fr 1fr; }
  .region-grid { grid-template-columns: 1fr 1fr; }
  .goal-grid { grid-template-columns: 1fr 1fr; }
  .onb-footer { padding: 14px 16px 24px; }
  .onb-dots { display: none; }
  .home-hero { flex-direction: column; gap: 16px; }
  .home-daily { width: 100%; }
  .home-rail { grid-template-columns: 1fr; }
  .unit-strip { grid-template-columns: 1fr; }
  .unit-strip .unit-card { min-height: 150px; }
  .continue-card { padding: 22px; }
  .continue-copy { max-width: 100%; }
  .continue-art { display: none; }
  .home-meta .meta-pill:nth-child(n + 3) { display: none; }
  .unit-grid { grid-template-columns: 1fr 1fr; }
  .learn-summary { gap: 14px; }
  .learn-footer-cards { grid-template-columns: 1fr; }
  .lesson-topbar { padding: 9px 12px; gap: 8px; }
  .lesson-pair { display: none; }
  .lesson-root { padding: 18px 14px 90px; }
  .dialogue-line { max-width: 100%; }
  .dialogue-card { padding: 16px; }
  .quiz-card { padding: 18px; }
  .choices.two-col { grid-template-columns: 1fr; }
  .done-card { padding: 24px 18px; }
  .done-card h1 { font-size: 2.2rem; }
  .done-actions .btn { flex: 1; }
  .phrase-row { padding: 13px; }
  .phrase-term { font-size: 1.3rem; }
  .phrase-others { display: none; }
  .phrase-row-side { flex-direction: row; align-items: center; }
  .game-grid, .lab-grid, .mini-lab-row, .forum-tools-grid, .math-tool-grid, .guide-grid, .dialect-cards { grid-template-columns: 1fr; }
  .game-card { min-height: 160px; }
  .match-grid { grid-template-columns: 1fr 1fr; }
  .memory-grid { grid-template-columns: 1fr 1fr 1fr; }
  .game-root { padding: 18px 14px 80px; }
  .lab-two-col { gap: 10px; }
  .sound-aside { grid-template-columns: 1fr 1fr; }
  .sound-detail { padding: 18px; }
  .sound-big { font-size: 3rem; min-width: 70px; }
  .drill-card { padding: 18px; }
  .dialect-detail { padding: 18px; }
  .dialect-detail-head { flex-direction: column; }
  .forum-hero { padding: 22px; }
  .forum-hero-copy h1 { font-size: 2.6rem; }
  .forum-session-head { padding: 16px; flex-wrap: wrap; }
  .session-done { margin-left: 0; }
  .principle-card { padding: 14px; gap: 10px; }
  .tool-panel { padding: 18px; }
  .tool-grid { gap: 12px; }
  .debate-clock { font-size: 3rem; }
  .math-hero { padding: 22px; }
  .math-hero-art { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .badge-grid { grid-template-columns: 1fr 1fr; }
  .profile-banner { gap: 14px; padding: 16px; }
  .profile-level { margin-left: 0; }
  .profile-streak { width: 100%; }
  .settings-field-row { grid-template-columns: 1fr; }
  .converter-row { grid-template-columns: 1fr; }
  .swap-round { transform: rotate(90deg); justify-self: center; margin: 0; }
  .mastery-bar { width: 60px; }
  .graph-canvas-wrap { min-height: 360px; }
  .toast-stack { bottom: 86px; }
}
@media (max-width: 460px) {
  .unit-grid { grid-template-columns: 1fr; }
  .lang-choice-grid { grid-template-columns: 1fr; }
  .region-grid, .goal-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 10px; }
  .hero-stats span:nth-child(4) { display: none; }
  .hero-word-card { width: 150px; }
  .board-cards { height: 350px; }
  .match-grid { gap: 5px; }
  .memory-grid { gap: 5px; }
  .forum-hero-stats { gap: 12px; }
  .badge-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .done-stats { grid-template-columns: 1fr 1fr 1fr; }
  .lab-two-col .sound-aside { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .marquee-track { animation: none; }
}

/* Landing video */
.video-section { padding-top: 24px; }
.landing-video {
  width: 100%;
  max-width: 960px;
  aspect-ratio: 16 / 9;
  display: block;
  background: #000;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}