/* Landing page (/). The app itself (/app) uses styles.css; these share its colours. */
:root {
  --page: #f6f5f1; --card: #ffffff; --sunken: #efeee8; --ink: #151513; --ink-2: #52514e; --muted: #6f6e69;
  --line: #e6e4dc; --line-strong: #cfcdc4; --accent: #1c5cab; --accent-hover: #184f95; --accent-soft: #e8f0fb; --accent-ink: #fff;
  --good: #0c6b0c; --good-soft: #e4f3e4; --good-line: #3f9f3f; --bad: #b3302f; --bad-soft: #fbe9e8; --bad-line: #d65a59;
  --band: #ffffff; --hero-a: #e8f0fb; --hero-b: #f6f5f1;
  --shadow: 0 1px 2px rgba(24, 22, 16, 0.05), 0 8px 24px rgba(24, 22, 16, 0.07);
  --shadow-lg: 0 24px 60px rgba(24, 22, 16, 0.14);
  --greek: "Gentium Book Plus", "GFS Didot", "Noto Serif", serif;
  --ui: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --page: #0f0f0e; --card: #1c1c1b; --sunken: #232321; --ink: #f4f3ef; --ink-2: #c3c2b7; --muted: #9a9890;
    --line: #2c2c2a; --line-strong: #43423e; --accent: #3987e5; --accent-hover: #5598e7; --accent-soft: #16273d; --accent-ink: #0b0b0b;
    --good: #5ccf5c; --good-soft: #142a17; --good-line: #2f8f2f; --bad: #f08a89; --bad-soft: #341716; --bad-line: #b84747;
    --band: #151514; --hero-a: #13223a; --hero-b: #0f0f0e;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --page: #0f0f0e; --card: #1c1c1b; --sunken: #232321; --ink: #f4f3ef; --ink-2: #c3c2b7; --muted: #9a9890;
  --line: #2c2c2a; --line-strong: #43423e; --accent: #3987e5; --accent-hover: #5598e7; --accent-soft: #16273d; --accent-ink: #0b0b0b;
  --good: #5ccf5c; --good-soft: #142a17; --good-line: #2f8f2f; --bad: #f08a89; --bad-soft: #341716; --bad-line: #b84747;
  --band: #151514; --hero-a: #13223a; --hero-b: #0f0f0e;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--page); color: var(--ink); font: 17px/1.6 var(--ui); -webkit-font-smoothing: antialiased; }
[lang="grc"] { font-family: var(--greek); font-synthesis: none; font-variant-ligatures: none; }
a { color: var(--accent); text-underline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 50; background: var(--card); padding: 8px 12px; border-radius: 8px; }
.skip:focus { left: 8px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }
.center { text-align: center; }
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.15; margin: 0; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 780; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); font-weight: 750; margin-bottom: 18px; }
h3 { font-size: 1.12rem; font-weight: 700; }
.eyebrow { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin: 0 0 10px; }
.lead { font-size: 1.15rem; color: var(--ink-2); margin: 18px 0 0; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 16px; border-radius: 10px; white-space: nowrap;
  background: var(--accent); color: var(--accent-ink); font-weight: 650; font-size: 0.95rem; text-decoration: none; border: 1px solid transparent;
  cursor: pointer; font-family: inherit; transition: background 0.15s, transform 0.1s;
}
.btn:hover { background: var(--accent-hover); }
.btn:active { transform: translateY(1px); }
.btn.lg { padding: 14px 22px; font-size: 1.02rem; border-radius: 12px; }
.btn.sm { padding: 7px 12px; font-size: 0.9rem; }
.btn.secondary { background: var(--card); color: var(--ink); border-color: var(--line-strong); }
.btn.secondary:hover { background: var(--sunken); }
.btn.ghost { background: transparent; color: var(--ink-2); }
.btn.ghost:hover { background: var(--sunken); color: var(--ink); }

/* Header */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--page) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 20px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; }
.brand .mark { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; background: var(--accent); color: var(--accent-ink); font-size: 1.25rem; line-height: 1; }
.links { display: flex; gap: 4px; margin-left: 12px; }
.links a { color: var(--ink-2); text-decoration: none; padding: 6px 10px; border-radius: 8px; font-weight: 550; font-size: 0.95rem; }
.links a:hover { background: var(--sunken); color: var(--ink); }
.top-cta { margin-left: auto; display: flex; gap: 6px; }
@media (max-width: 860px) { .links { display: none; } }
@media (max-width: 480px) { .top-cta .btn.ghost { display: none; } .top-cta .btn { padding: 8px 12px; font-size: 0.88rem; } }

/* Hero */
.hero { background: radial-gradient(1200px 500px at 80% -10%, var(--hero-a), transparent 70%), linear-gradient(var(--hero-b), var(--page)); padding: 64px 0 72px; }
.hero-in { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 56px; align-items: center; }
@media (max-width: 900px) { .hero-in { grid-template-columns: 1fr; gap: 40px; } .hero { padding: 40px 0 56px; } }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.cta-row.center { justify-content: center; }
@media (max-width: 480px) { .cta-row .btn { flex: 1 1 100%; } }
.solo { margin: 16px 0 0; color: var(--ink-2); }
.solo a { font-weight: 650; }
.ticks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 8px; color: var(--ink-2); font-size: 0.96rem; }
.ticks li { display: flex; gap: 10px; align-items: baseline; }
.ticks li::before { content: "✓"; color: var(--good); font-weight: 800; }

/* Try a word */
.try { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 24px; box-shadow: var(--shadow-lg); }
.try-head { display: flex; justify-content: space-between; align-items: center; }
.pill { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }
.try-score { font-weight: 700; color: var(--good); font-variant-numeric: tabular-nums; }
.try-q { color: var(--muted); margin: 18px 0 2px; text-align: center; font-size: 0.95rem; }
.try-greek { font-size: clamp(1.7rem, 4.6vw, 2.4rem); line-height: 1.3; text-align: center; margin: 0 0 18px; overflow-wrap: anywhere; }
.try-opts { display: grid; gap: 8px; }
.try-opts button {
  text-align: left; padding: 12px 14px; border-radius: 12px; border: 1.5px solid var(--line-strong); background: var(--card); color: var(--ink);
  font: inherit; font-size: 0.97rem; line-height: 1.35; cursor: pointer; transition: border-color 0.15s, background 0.15s, transform 0.1s;
}
.try-opts button:hover:not(:disabled) { border-color: var(--accent); transform: translateY(-1px); }
.try-opts button:disabled { cursor: default; opacity: 0.6; }
.try-opts button.right { border-color: var(--good-line); background: var(--good-soft); opacity: 1; }
.try-opts button.wrong { border-color: var(--bad-line); background: var(--bad-soft); opacity: 1; }
.try-foot { min-height: 52px; margin-top: 14px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: 0.88rem; }
.try-foot .ok { color: var(--good); font-weight: 700; font-size: 0.97rem; }
.try-foot .no { color: var(--bad); font-weight: 600; font-size: 0.95rem; }

/* Sections */
.band { padding: 88px 0; background: var(--page); }
.band.alt { background: var(--band); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
@media (max-width: 720px) { .band { padding: 60px 0; } }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 56px; align-items: center; }
.split.reverse > :first-child { order: 2; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 32px; } .split.reverse > :first-child { order: 0; } }
.features { list-style: none; padding: 0; margin: 0 0 28px; display: grid; gap: 16px; }
.features li { padding-left: 18px; border-left: 3px solid var(--accent-soft); color: var(--ink-2); }
.features b { color: var(--ink); }
.shot { margin: 0; }
.shot img { border-radius: 16px; border: 1px solid var(--line); box-shadow: var(--shadow-lg); background: var(--card); }
.shot figcaption { color: var(--muted); font-size: 0.88rem; margin-top: 12px; text-align: center; }
.fixes { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 28px 0 0; }
.fix { padding: 10px 16px; border-radius: 12px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); font-size: 1.25rem; }
.fix s { color: var(--bad); text-decoration-thickness: 1.5px; }
.fix b { color: var(--good); font-weight: 400; }
.note { color: var(--muted); font-size: 0.92rem; margin: 22px 0 0; }
.steps { list-style: none; padding: 0; margin: 12px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.steps li { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px; box-shadow: var(--shadow); }
.steps .n { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--accent); color: var(--accent-ink); font-weight: 800; margin-bottom: 14px; }
.steps p { color: var(--ink-2); margin: 8px 0 0; }
.list-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; max-width: 900px; margin: 12px auto 0; }
@media (max-width: 720px) { .list-cards { grid-template-columns: 1fr; } }
.list-card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px; box-shadow: var(--shadow); }
.list-card p:last-child { color: var(--ink-2); margin: 8px 0 0; }
details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 4px 20px; margin-top: 10px; }
summary { cursor: pointer; font-weight: 650; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 1.3rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { color: var(--ink-2); margin: 0 0 16px; }
.final { padding: 96px 0; background: radial-gradient(900px 400px at 50% 120%, var(--hero-a), transparent 70%), var(--page); }
.final-greek { font-size: clamp(2rem, 5vw, 3rem); margin: 0 0 8px; color: var(--accent); }
.final .lead { margin-bottom: 0; }
.foot { border-top: 1px solid var(--line); padding: 28px 0 36px; color: var(--muted); font-size: 0.88rem; }
.foot-in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }
.foot b { color: var(--ink-2); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

/* ---------- Privacy ---------- */
.privacy { padding-top: 40px; padding-bottom: 72px; }
.privacy h1 { font-size: clamp(1.9rem, 4.4vw, 2.6rem); }
.privacy h2 { font-size: 1.35rem; margin: 40px 0 10px; }
.privacy h3 { font-size: 1.05rem; margin: 20px 0 6px; }
.privacy p, .privacy li { color: var(--ink-2); }
.privacy ul { padding-left: 22px; display: grid; gap: 6px; }
.privacy b { color: var(--ink); }
.updated { color: var(--muted); font-size: 0.9rem; }

/* ---------- Vocabulary pages (/vocabulary…) ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.links a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); }
.crumbs { padding-top: 18px; font-size: 0.88rem; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin-right: 6px; color: var(--line-strong); }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--accent); text-decoration: underline; }
.vhero { padding: 28px 0 44px; background: radial-gradient(1000px 420px at 85% -20%, var(--hero-a), transparent 70%); }
.vhero h1 { font-size: clamp(1.9rem, 4.4vw, 3rem); max-width: 22ch; }
.vhero .narrow h1 { max-width: none; }
.h1-sub { display: block; color: var(--accent); font-size: 0.62em; margin-top: 10px; letter-spacing: -0.01em; }
.vhero .lead { max-width: 68ch; }
.stat-row { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 24px 0 0; }
.stat-row li { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: 0.92rem; color: var(--ink-2); box-shadow: var(--shadow); }
.stat-row b { color: var(--ink); }

.vtools { position: sticky; top: 64px; z-index: 10; background: color-mix(in srgb, var(--page) 92%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); }
.vtools-in { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; padding-top: 12px; padding-bottom: 10px; }
.vtools input { flex: 1 1 240px; max-width: 360px; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--card); color: var(--ink); font: inherit; font-size: 0.96rem; }
.vtools input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.type-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.type-chips button { font: inherit; font-size: 0.88rem; font-weight: 600; padding: 6px 12px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line-strong); background: var(--card); color: var(--ink-2); }
.type-chips button[aria-pressed="true"] { background: var(--ink); color: var(--page); border-color: var(--ink); }
.vcount { margin-left: auto; color: var(--muted); font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.alpha { display: flex; gap: 2px; overflow-x: auto; padding-bottom: 10px; scrollbar-width: none; }
.alpha::-webkit-scrollbar { display: none; }
.alpha a { flex: none; min-width: 32px; text-align: center; padding: 4px 6px; border-radius: 8px; text-decoration: none; color: var(--ink-2); font-size: 1.05rem; }
.alpha a:hover { background: var(--accent-soft); color: var(--accent); }
.alpha a.off { opacity: 0.3; pointer-events: none; }
@media (max-width: 640px) { .vcount { margin-left: 0; } .vtools { top: 64px; } }

.wordlist { padding-top: 12px; padding-bottom: 56px; }
.letter { scroll-margin-top: 190px; padding-top: 28px; }
.letter h2 { display: flex; align-items: baseline; gap: 12px; font-size: 1.9rem; margin: 0 0 14px; padding-bottom: 8px; border-bottom: 2px solid var(--line); }
.letter h2 span { font-weight: 400; color: var(--accent); }
.letter h2 small { font: 600 0.85rem var(--ui); color: var(--muted); letter-spacing: 0; }
.words { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr)); gap: 10px; margin: 0; }
.w { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 12px 16px; transition: border-color 0.15s, box-shadow 0.15s; }
.w:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.w dt { font-size: 1.18rem; line-height: 1.35; overflow-wrap: anywhere; }
.w dd { margin: 3px 0 0; color: var(--ink-2); font-size: 0.96rem; }
.w .pos { display: inline-block; margin-left: 4px; font: 600 0.7rem/1.7 var(--ui); letter-spacing: 0.04em; text-transform: uppercase;
  padding: 0 7px; border-radius: 999px; background: var(--sunken); color: var(--muted); vertical-align: 1px; }
.nomatch { text-align: center; color: var(--muted); padding: 40px 0; }
.corrections { list-style: none; padding: 0; margin: 16px 0 36px; display: grid; gap: 10px; }
.corrections li { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; display: grid; gap: 4px; }
.corrections [lang="grc"] { font-size: 1.15rem; }
.corrections s { color: var(--bad); }
.corrections b { color: var(--good); font-weight: 400; }
.corrections .why { color: var(--muted); font-size: 0.9rem; }
.practise-card { margin-top: 32px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 28px;
  padding: 26px 28px; border-radius: 20px; background: linear-gradient(135deg, var(--accent-soft), var(--card)); border: 1px solid var(--line); box-shadow: var(--shadow); }
.practise-card > div { flex: 1 1 320px; }
.practise-card p { margin: 6px 0 0; color: var(--ink-2); }

.list-hub { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 420px), 1fr)); gap: 20px; padding-top: 8px; padding-bottom: 64px; }
.hub-card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 28px; box-shadow: var(--shadow); }
.hub-card h2 { font-size: 1.35rem; margin-bottom: 10px; }
.hub-card h2 a { color: var(--ink); text-decoration: none; }
.hub-card h2 a:hover { color: var(--accent); }
.hub-card > p:not(.eyebrow) { color: var(--ink-2); }
.row-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.which { padding-left: 20px; display: grid; gap: 8px; }

.change-summary { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 26px 0 0; }
.change-summary li { padding: 10px 16px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); font-weight: 600; color: var(--ink-2); }
.change-summary b { font-size: 1.4rem; margin-right: 4px; color: var(--ink); }
.change-summary .add { border-top: 4px solid var(--good-line); }
.change-summary .chg { border-top: 4px solid #d9a227; }
.change-summary .del { border-top: 4px solid var(--bad-line); }
.changes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; padding-top: 8px; padding-bottom: 64px; align-items: start; }
@media (max-width: 960px) { .changes { grid-template-columns: 1fr; } }
.chg-col { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 22px; box-shadow: var(--shadow); border-top: 5px solid var(--line-strong); }
.chg-col.add { border-top-color: var(--good-line); }
.chg-col.chg { border-top-color: #d9a227; }
.chg-col.del { border-top-color: var(--bad-line); }
.chg-col h2 { font-size: 1.25rem; display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.chg-col h2 small { font-size: 0.95rem; color: var(--muted); }
.chg-col .hint { color: var(--muted); font-size: 0.88rem; margin: 0 0 8px; }
.chg-list { list-style: none; padding: 0; margin: 10px 0 0; }
.chg-list li { padding: 10px 0; border-top: 1px solid var(--line); display: grid; gap: 2px; }
.chg-list .g { font-size: 1.12rem; }
.chg-list .e { color: var(--ink-2); font-size: 0.93rem; }
.chg-list.pairs li { gap: 8px; }
.chg-list .was, .chg-list .now { display: grid; gap: 1px; padding-left: 10px; border-left: 3px solid var(--line-strong); }
.chg-list .was { border-left-color: var(--bad-line); opacity: 0.85; }
.chg-list .was .g { text-decoration: line-through; text-decoration-color: var(--bad-line); }
.chg-list .now { border-left-color: var(--good-line); }
.source { margin-top: 30px; max-width: 820px; background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--accent);
  border-radius: 14px; padding: 18px 22px; box-shadow: var(--shadow); font-size: 0.95rem; color: var(--ink-2); }
.source h2 { font-size: 1.05rem; margin: 0 0 8px; color: var(--ink); letter-spacing: 0; }
.source p { margin: 0 0 8px; }
.source ul { margin: 0 0 8px; padding-left: 20px; display: grid; gap: 4px; }
.source b { color: var(--ink); }
.small { font-size: 0.86rem; color: var(--muted); }
.file { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.9em; word-break: break-all; }
.sources { padding-top: 8px; padding-bottom: 48px; }
.sources ul { padding-left: 20px; display: grid; gap: 6px; }
.list-card h3 a { color: var(--ink); text-decoration: none; }
.list-card h3 a:hover { color: var(--accent); }
.chg-list .was .e { text-decoration: line-through; text-decoration-color: var(--bad-line); }
.chg-list .was.same-g .g, .chg-list .was.same-e .e { text-decoration: none; }