/* FrenchFlow landing page. Static, no cookies, no third-party requests. Colours mirror app/client/src/styles/tokens.css. */
@font-face { font-family: "Fraunces Variable"; font-style: normal; font-display: swap; font-weight: 100 900; src: url("/app/fonts/fraunces-latin-wght-normal.woff2") format("woff2-variations"); }
@font-face { font-family: "Inter Variable"; font-style: normal; font-display: swap; font-weight: 100 900; src: url("/app/fonts/inter-latin-wght-normal.woff2") format("woff2-variations"); }

:root {
  --display: "Fraunces Variable", Georgia, "Times New Roman", serif;
  --sans: "Inter Variable", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --bg: hsl(71 22% 90%);
  --surface: hsl(180 7% 97%);
  --text: hsl(0 0% 8%);
  --muted: hsl(60 6% 36%);
  --line: hsl(35 11% 78%);
  --control: hsl(35 8% 50%);
  --primary: hsl(168 55% 30%);
  --on-primary: #fff;
  --primary-soft: hsl(168 30% 90%);
  --reward: hsl(24 95% 45%);
  --reward-text: hsl(21 90% 36%);
  --tint-words: hsl(205 55% 90%); --ink-words: hsl(205 70% 32%);
  --tint-verbs: hsl(330 50% 91%); --ink-verbs: hsl(330 60% 36%);
  --tint-phrases: hsl(145 40% 89%); --ink-phrases: hsl(145 60% 26%);
  --tint-grammar: hsl(265 45% 92%); --ink-grammar: hsl(265 45% 38%);
  --good: hsl(145 60% 28%);
  --bad: hsl(0 65% 44%);
  --radius: 16px;
  --shadow: 0 1px 2px hsl(0 0% 0% / .06), 0 8px 24px hsl(0 0% 0% / .06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: hsl(165 12% 8%);
    --surface: hsl(165 10% 12%);
    --text: hsl(150 10% 94%);
    --muted: hsl(150 8% 70%);
    --line: hsl(165 8% 24%);
    --control: hsl(150 8% 55%);
    --primary: hsl(168 50% 40%);
    --on-primary: hsl(165 40% 6%);
    --primary-soft: hsl(168 25% 17%);
    --reward-text: hsl(30 95% 62%);
    --tint-words: hsl(205 30% 18%); --ink-words: hsl(205 70% 72%);
    --tint-verbs: hsl(330 25% 19%); --ink-verbs: hsl(330 70% 76%);
    --tint-phrases: hsl(145 25% 17%); --ink-phrases: hsl(145 55% 68%);
    --tint-grammar: hsl(265 25% 20%); --ink-grammar: hsl(265 70% 78%);
    --good: hsl(145 55% 60%);
    --bad: hsl(0 80% 70%);
    --shadow: 0 1px 2px hsl(0 0% 0% / .4), 0 8px 24px hsl(0 0% 0% / .35);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 17px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--primary); color: var(--on-primary); padding: 10px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { top: 12px; }
.wrap { width: min(1120px, 100% - 40px); margin-inline: auto; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.35rem; }
p { margin: 0; }
.fr { font-family: var(--display); }
.eyebrow { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--primary); }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 40rem; }
section { padding: 88px 0; }
@media (max-width: 720px) { section { padding: 60px 0; } }
.section-head { display: grid; gap: 12px; margin-bottom: 40px; max-width: 46rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 24px; border-radius: 12px; border: 2px solid var(--primary); background: var(--primary); color: var(--on-primary); font: 600 1rem var(--sans); text-decoration: none; cursor: pointer; transition: transform .15s, box-shadow .15s; }
.btn:hover { box-shadow: var(--shadow); transform: translateY(-1px); }
.btn.secondary { background: transparent; color: var(--text); border-color: var(--control); }
.btn.small { white-space: nowrap; min-height: 40px; padding: 0 16px; font-size: .95rem; }
.btn[disabled] { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }

/* Header */
header.site { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font: 600 1.4rem var(--display); text-decoration: none; }
.logo img { width: 32px; height: 32px; border-radius: 8px; }
nav.main ul { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; }
nav.main a { white-space: nowrap; display: block; padding: 8px 12px; border-radius: 8px; font-weight: 500; text-decoration: none; }
nav.main a:hover { background: var(--primary-soft); }
.actions { display: flex; align-items: center; gap: 12px; }
.actions .login { font-weight: 500; text-decoration: none; padding: 8px; }
@media (max-width: 1180px) and (min-width: 1001px) { .actions .login { display: none; } }
.langs { display: flex; gap: 4px; }
.langs a { display: block; min-width: 40px; text-align: center; padding: 8px 6px; border-radius: 8px; border: 1px solid var(--control); font-size: .85rem; font-weight: 600; text-decoration: none; }
.langs a[aria-current] { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
@media (max-width: 640px) { .bar { flex-wrap: wrap; row-gap: 4px; padding-block: 8px; min-height: 0; } .langs { order: 3; width: 100%; } .langs a { flex: 1; } }
.menu-btn { display: none; min-height: 44px; min-width: 44px; border: 2px solid var(--control); background: transparent; color: var(--text); border-radius: 10px; font: 600 .95rem var(--sans); cursor: pointer; }
@media (max-width: 1000px) {
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; padding: 0 12px; }
  nav.main { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--surface); border-bottom: 1px solid var(--line); padding: 8px 20px 16px; }
  nav.main.open { display: block; }
  nav.main ul { flex-direction: column; }
  nav.main a { padding: 14px 8px; }
  .actions .login { display: none; }
}

/* Hero */
.hero { padding: 72px 0 96px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero h1 { margin: 14px 0 20px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 16px; }
.trust { font-size: .95rem; color: var(--muted); }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } .hero { padding-top: 40px; } }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.wordcard { max-width: 420px; margin-inline: auto; position: relative; display: grid; gap: 14px; padding: 32px; }
.wordcard .top { display: flex; align-items: center; gap: 10px; }
.badge { font-size: .8rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: hsl(330 60% 42%); color: #fff; }
.word { font: 600 3rem/1 var(--display); }
.ipa { color: var(--muted); font-size: 1rem; }
.example { padding-top: 14px; border-top: 1px solid var(--line); font-size: 1.05rem; }
.example mark { background: var(--primary-soft); color: inherit; padding: 1px 4px; border-radius: 4px; font-weight: 600; }
.example small { display: block; color: var(--muted); font-size: .9rem; margin-top: 4px; }
.attrib { font-size: .75rem; color: var(--muted); }
.audio { margin-left: auto; width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; background: var(--primary-soft); color: var(--primary); }
.streak { position: absolute; right: -14px; bottom: -22px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px; box-shadow: var(--shadow); font-weight: 600; display: flex; gap: 8px; align-items: center; }
.streak b { color: var(--reward-text); }
.streak svg { color: var(--reward); }
@media (max-width: 520px) { .streak { right: 0; } .word { font-size: 2.4rem; } }

/* Try it now */
.demo { background: var(--surface); border-block: 1px solid var(--line); }
.quiz { display: grid; gap: 20px; }
.quiz-card { padding: 32px; display: grid; gap: 18px; min-height: 340px; align-content: center; text-align: center; }
.quiz-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: .9rem; }
.bar-track { height: 8px; border-radius: 99px; background: var(--primary-soft); overflow: hidden; }
.bar-fill { height: 100%; background: var(--primary); width: 0; transition: width .3s; }
.prompt { font: 600 1.1rem var(--sans); color: var(--muted); }
.prompt .fr { color: var(--text); font-size: 2.2rem; display: block; }
.ask { font-size: 1.4rem; }
.ask .fr { font-weight: 600; }
.answer { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.answer input { min-height: 52px; width: min(100%, 260px); font: 500 1.25rem var(--display); text-align: center; padding: 0 14px; border-radius: 12px; border: 2px solid var(--control); background: var(--bg); color: var(--text); }
.feedback { min-height: 3.2em; font-weight: 600; }
.feedback.good { color: var(--good); }
.feedback.bad { color: var(--bad); }
.feedback .fr { font-size: 1.4rem; }
.result { text-align: center; display: grid; gap: 16px; justify-items: center; }
.score { font: 600 3.4rem/1 var(--display); }
.hidden { display: none !important; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; list-style: none; padding: 0; margin: 0; counter-reset: step; }
.steps li { counter-increment: step; display: grid; gap: 10px; align-content: start; }
.steps li::before { content: counter(step); display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--primary); color: var(--on-primary); font: 600 1.2rem var(--display); }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.feature { display: block; }
.feature .copy { display: grid; gap: 14px; justify-items: start; }
.icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 14px; }
.icon svg { width: 24px; height: 24px; }
.t-words { background: var(--tint-words); color: var(--ink-words); }
.t-verbs { background: var(--tint-verbs); color: var(--ink-verbs); }
.t-phrases { background: var(--tint-phrases); color: var(--ink-phrases); }
.t-grammar { background: var(--tint-grammar); color: var(--ink-grammar); }
.link { font-weight: 600; color: var(--primary); text-underline-offset: 4px; }
@media (max-width: 800px) { .features-grid { grid-template-columns: 1fr; } }

/* Why it works */
.why { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ladder { display: flex; align-items: flex-end; gap: 10px; margin-top: 40px; padding: 24px; }
.ladder div { flex: 1; background: var(--primary-soft); border: 1px solid var(--line); border-radius: 10px 10px 0 0; display: grid; place-items: end center; padding-bottom: 8px; font-weight: 600; font-size: .9rem; }
.ladder div:nth-child(1) { height: 40px; } .ladder div:nth-child(2) { height: 72px; } .ladder div:nth-child(3) { height: 112px; } .ladder div:nth-child(4) { height: 160px; background: var(--primary); color: var(--on-primary); }
@media (max-width: 800px) { .why { grid-template-columns: 1fr; } }

/* Levels */
.levels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; list-style: none; padding: 0; margin: 0 0 24px; }
.levels li { display: grid; gap: 4px; }
.levels .lv { font: 600 2rem var(--display); color: var(--primary); }
@media (max-width: 800px) { .levels { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .levels { grid-template-columns: 1fr; } }

/* Free tools */
.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; list-style: none; padding: 0; margin: 0; }
.tool { display: grid; gap: 10px; align-content: start; height: 100%; text-decoration: none; }
a.tool:hover { border-color: var(--primary); }
.tool .open { font-weight: 600; color: var(--primary); }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 22px; font: 600 1.1rem var(--sans); display: flex; justify-content: space-between; gap: 16px; align-items: center; min-height: 56px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.5rem; line-height: 1; color: var(--primary); }
.faq details[open] summary::after { content: "−"; }
.faq .a { padding: 0 22px 20px; color: var(--muted); }

/* Final CTA + footer */
.final { background: var(--primary); color: var(--on-primary); text-align: center; border-radius: 28px; padding: 64px 24px; display: grid; gap: 20px; justify-items: center; }
.final .btn { background: var(--on-primary); color: var(--primary); border-color: var(--on-primary); }
.final a.link { color: inherit; }
footer.site { padding: 56px 0 40px; border-top: 1px solid var(--line); margin-top: 88px; }
.foot { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
.foot h2 { font: 700 .85rem var(--sans); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 12px; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.foot a { text-underline-offset: 4px; }
.legal { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--line); font-size: .9rem; color: var(--muted); display: grid; gap: 8px; }
@media (max-width: 800px) { .foot { grid-template-columns: 1fr 1fr; } .foot > :first-child { grid-column: 1 / -1; } }

/* Legal pages (privacy, terms, legal notice) */
.legal-page { padding: 56px 0 24px; }
.prose { max-width: 46rem; display: grid; gap: 14px; }
.prose h1 { margin-bottom: 8px; }
.prose h2 { font-size: 1.5rem; margin-top: 20px; }
.prose ul { margin: 0; padding-left: 1.2rem; display: grid; gap: 6px; }
.prose a { color: var(--primary); text-underline-offset: 4px; }
.prose .meta { color: var(--muted); font-size: .95rem; }
mark.todo { background: hsl(48 95% 78%); color: hsl(40 90% 14%); padding: 1px 6px; border-radius: 4px; font-weight: 600; font-size: .9em; }
@media (prefers-color-scheme: dark) { mark.todo { background: hsl(48 60% 28%); color: hsl(48 95% 88%); } }