/* ============================================================
   Lingotify shared site stylesheet
   Extracted from the homepage inline CSS so subpages and
   content pages render in the same design system.
   Sections: tokens / reset / layout / nav / buttons /
   prose (long form) / demo audio / footer / mobile
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --ink:#0A1628; --navy:#0F1F3F; --navy2:#0B1B37;
  --sky:#3C9CDB; --sky-deep:#2E7FC0; --sky-bright:#5DB9F0; --sky-soft:#BFE3F8; --wash:#EAF3FB;
  --canvas:#FBF9F5; --card:#FFFFFF; --band:#F2F0EA;
  --muted:#55627A; --faint:#8E99AC; --line:rgba(15,31,63,.1);
  --serif:'DM Serif Display',Georgia,serif; --sans:'Plus Jakarta Sans',-apple-system,sans-serif;
  --wrap:1120px;
  --measure:65ch;
  --prose:796px;
}

/* ---------- Reset and base typography ---------- */
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:var(--sans); background:var(--canvas); color:var(--ink); line-height:1.62; font-size:16.5px; -webkit-font-smoothing:antialiased; }
img { display:block; max-width:100%; }
a { color:inherit; text-decoration:none; }
button { font-family:var(--sans); }
h1,h2 { font-family:var(--serif); font-weight:400; letter-spacing:-0.02em; text-wrap:balance; }
h1 em,h2 em { font-style:italic; }
::selection { background:var(--sky-soft); color:var(--ink); }

/* ---------- Layout ---------- */
.wrap { max-width:var(--wrap); margin:0 auto; padding:0 28px; }
section { padding:104px 0; }
.eyebrow { display:inline-block; font-size:12px; font-weight:800; letter-spacing:.14em; text-transform:uppercase; color:var(--sky-deep); margin-bottom:14px; }
.eyebrow.on-dark { color:var(--sky-bright); }
.sec-head { text-align:center; max-width:640px; margin:0 auto 54px; }
.sec-head h2 { font-size:clamp(30px,4vw,46px); margin-bottom:12px; }
.sec-head p { color:var(--muted); }
.band { background:var(--band); }

/* ---------- Reveal on scroll ---------- */
.fade { opacity:0; transform:translateY(18px); transition:opacity .55s ease, transform .55s ease; }
.fade.in { opacity:1; transform:none; }

/* ---------- Nav (sticky, light) ---------- */
nav { position:sticky; top:0; z-index:70; background:rgba(251,249,245,.88); backdrop-filter:blur(14px); border-bottom:1px solid var(--line); }
.nav-inner { max-width:var(--wrap); margin:0 auto; padding:12px 28px; display:flex; align-items:center; gap:22px; }
.nav-logo { height:30px; }
.nav-links { display:flex; align-items:center; gap:24px; font-size:15px; font-weight:600; color:var(--muted); margin-left:auto; }
.nav-links a:hover { color:var(--ink); }
.nav-links a.nav-txt:focus-visible { outline:3px solid var(--sky); outline-offset:4px; border-radius:6px; }

/* ---------- Buttons ---------- */
.btn { display:inline-flex; align-items:center; justify-content:center; gap:9px; padding:16px 30px; border-radius:14px; font-weight:800; font-size:16px; cursor:pointer; border:none; background:var(--sky); color:#fff; box-shadow:0 8px 26px rgba(60,156,219,.3); transition:transform .18s ease, background .18s ease; }
.btn:hover { transform:translateY(-2px); background:var(--sky-deep); }
.btn:focus-visible { outline:3px solid var(--navy); outline-offset:2px; }
.btn.small { padding:11px 20px; font-size:14px; border-radius:11px; }
.btn.ghost { background:var(--card); color:var(--ink); border:1.5px solid var(--line); box-shadow:none; }
.btn.ghost:hover { background:var(--wash); }
.btn.block { width:100%; }

/* ============================================================
   Long form prose
   Use on article bodies: <main class="prose wrap"> ... </main>
   ============================================================ */
.prose { padding-top:56px; padding-bottom:88px; }
.prose.wrap { max-width:var(--prose); }

.prose > * + * { margin-top:22px; }

.prose h1 { font-size:clamp(32px,4.4vw,50px); line-height:1.1; margin-bottom:10px; }
.prose h2 { font-family:var(--serif); font-weight:400; font-size:clamp(26px,3.2vw,34px); line-height:1.22; letter-spacing:-0.02em; margin-top:52px; margin-bottom:8px; scroll-margin-top:88px; }
.prose h3 { font-family:var(--sans); font-weight:800; font-size:19px; line-height:1.35; letter-spacing:-0.01em; margin-top:34px; margin-bottom:6px; scroll-margin-top:88px; }
.prose h4 { font-family:var(--sans); font-weight:800; font-size:16px; letter-spacing:.01em; margin-top:26px; margin-bottom:4px; color:var(--muted); }

.prose p { font-size:17px; line-height:1.7; max-width:var(--measure); color:var(--ink); }
.prose .lede { font-size:19.5px; line-height:1.62; color:var(--muted); max-width:60ch; }
.prose .meta { font-size:13.5px; font-weight:700; color:var(--faint); letter-spacing:.02em; }
.prose small { font-size:13.5px; color:var(--faint); }
.prose strong,.prose b { font-weight:800; }
.prose em { font-style:italic; }

.prose a { color:var(--sky-deep); text-decoration:none; border-bottom:1px solid rgba(46,127,192,.32); transition:color .15s ease, border-color .15s ease; }
.prose a:hover { color:var(--sky); border-bottom-color:var(--sky); }
.prose a:focus-visible { outline:3px solid var(--sky); outline-offset:3px; border-radius:4px; }
.prose h2 a,.prose h3 a { border-bottom:none; }

.prose ul,.prose ol { max-width:var(--measure); padding-left:22px; display:flex; flex-direction:column; gap:9px; }
.prose li { font-size:17px; line-height:1.65; }
.prose li::marker { color:var(--sky-deep); font-weight:800; }
.prose li > ul,.prose li > ol { margin-top:9px; }
.prose ul.clean { list-style:none; padding-left:0; }
.prose ul.clean li { padding-left:26px; position:relative; }
.prose ul.clean li::before { content:""; position:absolute; left:6px; top:11px; width:7px; height:7px; border-radius:50%; background:var(--sky); }

.prose blockquote { border-left:3px solid var(--sky); background:var(--wash); border-radius:0 14px 14px 0; padding:18px 22px; max-width:var(--measure); }
.prose blockquote p { font-family:var(--serif); font-style:italic; font-size:20px; line-height:1.5; color:var(--ink); }
.prose blockquote cite { display:block; margin-top:8px; font-family:var(--sans); font-style:normal; font-size:13.5px; font-weight:700; color:var(--faint); }

.prose hr { border:none; height:1px; background:var(--line); margin:44px 0; max-width:var(--measure); }

.prose figure { margin-top:30px; }
.prose img,.prose figure img { border-radius:18px; border:1px solid var(--line); box-shadow:0 18px 44px rgba(15,31,63,.09); }
.prose figcaption { margin-top:10px; font-size:13.5px; color:var(--faint); font-weight:600; max-width:var(--measure); }

.prose code { font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-size:14.5px; background:var(--band); border:1px solid var(--line); border-radius:6px; padding:2px 6px; }
.prose pre { background:var(--navy); color:#fff; border-radius:16px; padding:20px 22px; overflow-x:auto; font-size:14px; line-height:1.6; }
.prose pre code { background:none; border:none; padding:0; color:inherit; }

/* Table plus its horizontal scroll wrapper */
.table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; border:1px solid var(--line); border-radius:16px; background:var(--card); }
.prose table { width:100%; border-collapse:collapse; font-size:15px; min-width:520px; }
.prose th,.prose td { text-align:left; padding:13px 16px; border-bottom:1px solid var(--line); vertical-align:top; }
.prose thead th { font-size:11.5px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; color:var(--faint); background:var(--band); }
.prose tbody tr:last-child td { border-bottom:none; }

/* Callout */
.prose .callout { background:var(--card); border:1px solid var(--line); border-left:3px solid var(--sky); border-radius:14px; padding:18px 22px; max-width:var(--measure); box-shadow:0 2px 6px rgba(15,31,63,.04); }
.prose .callout p { font-size:15.5px; }
.prose .callout .k { font-size:11.5px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; color:var(--sky-deep); margin-bottom:6px; display:block; }

/* Marker highlight, same treatment as the homepage headline */
.uw { text-decoration:none; background:linear-gradient(transparent 64%, rgba(93,185,240,.38) 64%); padding:0 3px; border-radius:3px; box-decoration-break:clone; -webkit-box-decoration-break:clone; }

/* ---------- Demo audio card ---------- */
.demo-audio { background:var(--card); border:1px solid var(--line); border-radius:20px; padding:20px 22px 18px; box-shadow:0 2px 6px rgba(15,31,63,.05), 0 18px 44px rgba(15,31,63,.08); max-width:var(--measure); }
.demo-audio .da-k { font-size:11.5px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; color:var(--sky-deep); margin-bottom:8px; }
.demo-audio .da-title { font-size:17px; font-weight:800; line-height:1.3; margin-bottom:2px; }
.demo-audio .da-meta { font-size:12.5px; font-weight:600; color:var(--faint); margin-bottom:14px; }
.demo-audio audio { width:100%; display:block; height:40px; }
.demo-audio .da-cap { margin-top:12px; font-size:13px; color:var(--faint); font-weight:600; }
.prose .demo-audio p { font-size:inherit; max-width:none; }

/* ---------- Footer ---------- */
footer { border-top:1px solid var(--line); padding:52px 0 40px; background:var(--card); }
.foot { display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; }
.foot-brand img { height:26px; margin-bottom:10px; }
.foot-brand p { font-size:13.5px; color:var(--faint); max-width:28ch; }
.foot-cols { display:flex; gap:52px; flex-wrap:wrap; }
.foot-col h5 { font-size:11px; font-weight:800; letter-spacing:.12em; text-transform:uppercase; color:var(--faint); margin-bottom:12px; }
.foot-col a { display:block; font-size:14px; font-weight:600; color:var(--muted); margin-bottom:9px; }
.foot-col a:hover { color:var(--ink); }
.foot-social { display:flex; flex-wrap:wrap; gap:20px; margin-top:30px; padding-top:22px; border-top:1px solid var(--line); }
.foot-social a { font-size:13.5px; font-weight:700; color:var(--muted); }
.foot-social a:hover { color:var(--sky-deep); }
.copyright { margin-top:18px; font-size:12.5px; color:var(--faint); }

/* ---------- Motion preference ---------- */
@media (prefers-reduced-motion: reduce) {
  .fade { opacity:1; transform:none; transition:none; }
  .btn:hover { transform:none; }
  html { scroll-behavior:auto; }
}

/* ---------- Mobile ---------- */
@media (max-width:940px) {
  section { padding:72px 0; }
  .prose { padding-top:40px; padding-bottom:64px; }
  .prose h2 { margin-top:42px; }
  .foot-cols { gap:34px; }
}
@media (max-width:820px) {
  .nav-links a.nav-txt { display:none; }
}
@media (max-width:600px) {
  .wrap { padding:0 18px; }
  .nav-inner { padding:10px 14px; gap:10px; }
  .nav-logo { height:25px; }
  .nav-links { gap:10px; }
  .nav-links .btn.small { padding:9px 13px; font-size:13px; }
  section { padding:64px 0; }
  .prose { padding-top:32px; padding-bottom:56px; }
  .prose p,.prose li { font-size:16.5px; }
  .prose .lede { font-size:18px; }
  .prose blockquote { padding:16px 18px; }
  .prose blockquote p { font-size:18px; }
  .prose pre { padding:16px 16px; }
  .demo-audio { padding:18px 16px 16px; }
  .foot { gap:28px; }
  .foot-cols { gap:26px; }
  .foot-col { min-width:132px; }
}