/* Fluentist marketing + legal site — shared design system.
   Brand tokens mirror the app (fluentist/lib/config/theme/app_colors.dart):
   sky-blue ownership, opaque surfaces, large radii, calm/premium. Zero
   third-party requests (no web-font CDN, no analytics) — keeps the site
   fast and honest with the privacy policy. */

:root {
  --brand: #1489fe;
  --brand-2: #21a9ff;
  --brand-ink: #0b63bd;
  --success: #06d6a0;
  --amber: #f59e0b;
  --coral: #e63946;
  --violet: #7c6cf5;

  --bg: #f8faff;
  --surface: #ffffff;
  --surface-2: #f1f5ff;
  --ink: #1f2937;
  --muted: #6b7280;
  --faint: #9ca3af;
  --border: #e5e7eb;

  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 28px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 12px 32px rgba(20, 137, 254, 0.07);
  --shadow-lg: 0 24px 60px rgba(20, 137, 254, 0.14);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --maxw: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111827;
    --surface: #1f2937;
    --surface-2: #182234;
    --ink: #f3f4f6;
    --muted: #9ca3af;
    --faint: #6b7280;
    --border: #2b3648;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a { color: var(--brand-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--muted); font-weight: 600; font-size: 15px; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(180deg, var(--brand-2), var(--brand));
  color: #fff;
  box-shadow: 0 8px 20px rgba(20, 137, 254, 0.32);
}
.btn-primary:hover { box-shadow: 0 12px 26px rgba(20, 137, 254, 0.42); }
.btn-ghost {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--brand); color: var(--brand-ink); }

/* ── Hero ───────────────────────────────────────────────── */
.hero { padding: 72px 0 40px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--brand-ink);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.01em;
}
h1 {
  font-size: clamp(38px, 6vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 18px 0 16px;
  font-weight: 800;
}
h1 .grad {
  background: linear-gradient(120deg, var(--brand), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede { font-size: 19px; color: var(--muted); max-width: 30ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.hero-art {
  position: relative;
  border-radius: var(--radius-lg);
  background: radial-gradient(120% 120% at 70% 10%, #dcefff 0%, #eaf5ff 45%, #fff7ec 100%);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  overflow: hidden;
}
@media (prefers-color-scheme: dark) {
  .hero-art { background: radial-gradient(120% 120% at 70% 10%, #1c3350 0%, #172436 55%, #241f16 100%); }
}
.hero-art img { margin: 0 auto; max-height: 420px; width: auto; }

/* store badges */
.store-badges { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: 14px;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  opacity: 0.92;
}
.store-badge small { display: block; font-size: 11px; opacity: 0.7; font-weight: 500; }
.store-badge b { font-size: 15px; }
.store-badge[aria-disabled="true"] { cursor: default; }
.store-badge:hover { text-decoration: none; opacity: 1; }

/* ── Sections ───────────────────────────────────────────── */
section { padding: 56px 0; }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 40px; }
.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  font-weight: 800;
}
.section-head p { color: var(--muted); font-size: 18px; margin: 0; }
.kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  font-weight: 800;
  color: var(--brand);
}

/* feature grid (bento) */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}
.card.span-2 { grid-column: span 2; }
.card h3 { margin: 14px 0 8px; font-size: 20px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.ic {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 22px;
  color: #fff;
}
.ic.sky { background: linear-gradient(180deg, var(--brand-2), var(--brand)); }
.ic.emerald { background: linear-gradient(180deg, #34e0b6, var(--success)); }
.ic.amber { background: linear-gradient(180deg, #ffc24d, var(--amber)); }
.ic.violet { background: linear-gradient(180deg, #9a8dff, var(--violet)); }
.ic.coral { background: linear-gradient(180deg, #ff6b74, var(--coral)); }

.card-media {
  grid-column: span 1;
  padding: 0;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  background: radial-gradient(120% 120% at 50% 0%, #e6f3ff, #f4f9ff);
}
@media (prefers-color-scheme: dark) {
  .card-media { background: radial-gradient(120% 120% at 50% 0%, #1b2c44, #172234); }
}
.card-media img { width: 100%; object-fit: contain; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: step; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.step .n {
  width: 38px; height: 38px; border-radius: 12px;
  background: var(--surface-2); color: var(--brand-ink);
  font-weight: 800; display: grid; place-items: center; margin-bottom: 14px;
}
.step h3 { margin: 0 0 6px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* languages */
.lang-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.chip {
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-weight: 600;
  font-size: 15px;
}

/* privacy callout band */
.band {
  background: linear-gradient(135deg, var(--brand), var(--violet));
  border-radius: var(--radius-lg);
  color: #fff;
  padding: 44px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}
.band h2 { color: #fff; font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 12px; letter-spacing: -0.02em; }
.band p { color: rgba(255, 255, 255, 0.92); margin: 0; font-size: 17px; }
.band ul { margin: 0; padding-left: 20px; }
.band li { margin: 8px 0; }
.band .btn-ghost { background: rgba(255,255,255,0.14); border-color: rgba(255,255,255,0.35); color: #fff; }
.band .btn-ghost:hover { background: rgba(255,255,255,0.24); color: #fff; }

/* final cta */
.cta-final { text-align: center; }
.cta-final h2 { font-size: clamp(28px, 4vw, 44px); letter-spacing: -0.02em; margin: 0 0 14px; }
.cta-final p { color: var(--muted); font-size: 18px; margin: 0 auto 26px; max-width: 46ch; }

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 48px 0 40px;
  margin-top: 40px;
}
.foot-grid { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.foot-brand { max-width: 320px; }
.foot-brand p { color: var(--muted); font-size: 14.5px; margin: 12px 0 0; }
.foot-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.foot-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); margin: 0 0 14px; }
.foot-col a { display: block; color: var(--muted); font-weight: 500; font-size: 15px; margin-bottom: 10px; }
.foot-col a:hover { color: var(--ink); text-decoration: none; }
.foot-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--faint);
  font-size: 13.5px;
}

/* ── Legal / prose pages ────────────────────────────────── */
.legal { padding: 56px 0 20px; }
.legal-head { max-width: 760px; margin: 0 auto 20px; }
.legal-head h1 { font-size: clamp(32px, 5vw, 46px); margin: 0 0 10px; }
.legal-head .updated { color: var(--faint); font-size: 14px; font-weight: 600; }
.prose {
  max-width: 760px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  box-shadow: var(--shadow);
}
.prose h2 { font-size: 22px; margin: 34px 0 12px; letter-spacing: -0.01em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 17px; margin: 22px 0 8px; }
.prose p, .prose li { color: var(--ink); font-size: 16px; }
.prose ul { padding-left: 22px; }
.prose li { margin: 7px 0; }
.prose a { font-weight: 600; }
.prose .muted { color: var(--muted); font-size: 15px; }
.toc {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 28px;
}
.toc strong { display: block; margin-bottom: 8px; font-size: 14px; }
.toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 30px; }
.toc a { font-size: 14.5px; }

/* a visible, impossible-to-miss placeholder for legally load-bearing blanks
   the owner must fill before publishing (registered address, governing law). */
.fillme {
  background: #fff3cd;
  color: #7a5b00;
  border-bottom: 2px dotted #d9a400;
  padding: 0 3px;
  font-weight: 700;
}
@media (prefers-color-scheme: dark) {
  .fillme { background: #3a2f10; color: #ffd970; }
}

/* contact page */
.contact-card {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow);
}
.contact-card .big-email {
  display: inline-block;
  margin: 18px 0 6px;
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* about page intro */
.about-hero { text-align: center; padding: 64px 0 24px; }
.about-hero h1 { font-size: clamp(34px, 5vw, 52px); letter-spacing: -0.03em; margin: 14px 0 16px; }
.about-hero p { color: var(--muted); font-size: 19px; max-width: 60ch; margin: 0 auto; }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-art { order: -1; }
  .lede { max-width: none; }
  .features, .steps, .value-grid { grid-template-columns: 1fr; }
  .card.span-2 { grid-column: span 1; }
  .band { grid-template-columns: 1fr; padding: 32px; }
  .toc ol { columns: 1; }
  .nav-links { display: none; }
  .prose { padding: 28px 22px; }
}