/* ═══════════════════════════════════════════════════════════════════
   Intr — shared site layer.

   Loaded by every page (index, privacy-policy, terms-of-use,
   account-deletion, contributors) so the whole site reads as one
   product. Page-specific styling stays inline in each page.

   Tokens mirror src/theme/index.ts. Do not drift them by eye.
   ═══════════════════════════════════════════════════════════════ */

:root{
  --bg:#070708;
  --panel:#0f0f11;
  --panel-2:#131316;
  --border:#1e1e22;
  --border-lit:#2a2a30;
  --text:#f5f5f6;
  --dim:#c4c4cc;
  --muted:#8a8a92;
  /* Was #55555d, which measured 2.73:1 on --bg and failed WCAG AA.
     #7c7c88 is 4.89:1 on --bg and 4.65:1 on --panel — passes on both
     surfaces it actually gets used on. */
  --faint:#7c7c88;

  --blue:#0EA5E9;      /* accentTeal  — primary action */
  --coral:#F43F5E;     /* accentCoral — energy / streak */
  --amber:#F59E0B;     /* accentAmber — PRs / achievement */
  --green:#22C55E;     /* positive    — recovering well */

  --ease:cubic-bezier(.22,1,.36,1);
  --maxw:1140px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--text);
  font-family:'DM Sans',system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;position:relative;
}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
::selection{background:rgba(14,165,233,.3)}

/* Keyboard focus. The browser default ring is near-invisible on this
   background, and there are 30+ focusable elements on the page. */
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:6px}
.btn:focus-visible{outline-offset:4px}
.skip{
  position:absolute;left:24px;top:-100px;z-index:200;
  padding:12px 20px;border-radius:11px;
  background:var(--blue);color:#04222e;font-weight:600;
  transition:top .22s var(--ease);
}
.skip:focus{top:14px}

/* Visually hidden but available to screen readers — for landmark headings
   (e.g. the footer) that shouldn't show but keep the heading order intact. */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ── Ambient background ─────────────────────────────────────────── */
.aurora{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.aurora span{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;will-change:transform}
.aurora .a1{width:760px;height:620px;top:-300px;left:50%;margin-left:-380px;
  background:radial-gradient(closest-side,rgba(14,165,233,.34),transparent 72%);
  animation:drift1 26s var(--ease) infinite alternate}
.aurora .a2{width:600px;height:520px;top:12%;right:-220px;
  background:radial-gradient(closest-side,rgba(244,63,94,.20),transparent 72%);
  animation:drift2 32s var(--ease) infinite alternate}
.aurora .a3{width:640px;height:540px;top:56%;left:-240px;
  background:radial-gradient(closest-side,rgba(245,158,11,.14),transparent 72%);
  animation:drift3 38s var(--ease) infinite alternate}
@keyframes drift1{to{transform:translate3d(-70px,60px,0) scale(1.12)}}
@keyframes drift2{to{transform:translate3d(-110px,90px,0) scale(1.08)}}
@keyframes drift3{to{transform:translate3d(90px,-70px,0) scale(1.14)}}
/* Three 90px-blur layers compositing forever is real GPU work on a phone.
   JS drops this class once the hero scrolls away. */
.aurora.paused span{animation-play-state:paused}

.grid-veil{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.35;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(120% 80% at 50% 0%,#000 10%,transparent 70%);
  -webkit-mask-image:radial-gradient(120% 80% at 50% 0%,#000 10%,transparent 70%);
}

.progress{
  position:fixed;top:0;left:0;height:2px;width:100%;z-index:100;
  background:linear-gradient(90deg,var(--blue),var(--coral),var(--amber));
  transform:scaleX(0);transform-origin:0 50%;
}

/* ── Layout primitives ──────────────────────────────────────────── */
.wrap{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{position:relative;z-index:2}
.section{padding:110px 0}
@media (max-width:820px){.section{padding:56px 0}}
/* Phones: tighten the vertical rhythm. (Display letter-spacing is relaxed
   below, after the base h1/h2 rules, so it wins the cascade.) */
@media (max-width:560px){.section{padding:44px 0}}

.eyebrow{
  font-family:'Syne',sans-serif;font-weight:700;font-size:11.5px;letter-spacing:3.4px;
  text-transform:uppercase;color:var(--blue);margin-bottom:18px;
}
.eyebrow.c{color:var(--coral)} .eyebrow.a{color:var(--amber)} .eyebrow.m{color:var(--muted)}

h1,h2,h3,h4{font-family:'Syne',sans-serif;letter-spacing:-.5px;line-height:1.12}
/* balance equalises line lengths — right for short, centred section headings,
   wrong for a long left-aligned hero, where it strands a two-word line. */
h1{text-wrap:pretty}
h2{text-wrap:balance}
h1{font-weight:800;font-size:clamp(27px,7.6vw,58px);letter-spacing:-1.6px}
h2{font-weight:800;font-size:clamp(25px,4.4vw,46px);letter-spacing:-1.1px}
/* At phone sizes the headings shrink, so the heavy negative tracking above
   over-tightens the glyphs — ease it back. Placed after the base rules to win. */
@media (max-width:560px){
  h1{letter-spacing:-.6px}
  h2{letter-spacing:-.7px}
}
h3{font-weight:700;font-size:20px}
/* The nav is sticky, so anchor jumps must clear it. */
[id]{scroll-margin-top:94px}

.lead{color:var(--dim);font-size:clamp(17px,2.2vw,20px);line-height:1.68}
.head{max-width:720px}
.head.center{margin:0 auto;text-align:center}
.head p{color:var(--muted);font-size:18px;line-height:1.7;margin-top:20px}

/* Vertical on purpose: a diagonal gradient breaks unpredictably across
   however many lines the headline wraps to. Top-down always reads clean. */
.grad{background:linear-gradient(180deg,#ffffff 8%,#8fd6f6 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent}

/* ── Buttons ────────────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:'DM Sans',sans-serif;font-weight:600;font-size:15.5px;
  padding:15px 26px;border-radius:13px;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .25s,border-color .2s,background .2s;
  white-space:nowrap;cursor:pointer;
}
.btn svg{width:17px;height:17px;flex:none}
.btn-primary{background:var(--blue);color:#04222e;box-shadow:0 6px 26px -8px rgba(14,165,233,.75)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 36px -8px rgba(14,165,233,.9)}
.btn-ghost{border-color:var(--border-lit);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--blue);transform:translateY(-2px);background:rgba(14,165,233,.06)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:11px}

/* ── Nav ────────────────────────────────────────────────────────── */
header.nav{
  position:sticky;top:0;z-index:60;
  transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
header.nav.stuck{
  background:rgba(7,7,8,.78);backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--border);
}
.nav-in{display:flex;align-items:center;gap:20px;height:70px}
.logo{
  font-family:'Syne',sans-serif;font-weight:800;font-size:17px;letter-spacing:3px;
  padding:8px 14px;border-radius:11px;border:1px solid var(--border-lit);
  background:linear-gradient(180deg,#16161a,#0c0c0e);color:var(--text);
  transition:border-color .2s,transform .2s var(--ease);
}
.logo:hover{border-color:var(--blue);transform:translateY(-1px)}
.nav-links{display:flex;gap:4px;margin-left:auto}
.nav-links a{
  color:var(--muted);font-size:14.5px;font-weight:500;padding:9px 14px;border-radius:9px;
  transition:color .18s,background .18s;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.045)}
.nav-links a[aria-current]{color:var(--text);background:rgba(14,165,233,.12)}
.nav-cta{margin-left:8px}

.burger{
  display:none;margin-left:8px;width:42px;height:42px;flex:none;
  align-items:center;justify-content:center;
  border:1px solid var(--border-lit);border-radius:11px;
  background:rgba(255,255,255,.02);cursor:pointer;
}
.burger span{display:block;position:relative;width:17px;height:1.5px;background:var(--text);
  border-radius:2px;transition:transform .28s var(--ease),background .18s}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:17px;height:1.5px;background:var(--text);
  border-radius:2px;transition:transform .28s var(--ease),top .28s var(--ease)}
.burger span::before{top:-5.5px} .burger span::after{top:5.5px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

.mobile-menu{
  display:none;overflow:hidden;
  border-top:1px solid var(--border);
  background:rgba(7,7,8,.94);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  /* max-height is set from the panel's real scrollHeight in JS — a hardcoded
     cap silently clips the last link the moment an item is added. */
  max-height:0;transition:max-height .38s var(--ease);
}
.mobile-menu nav{display:flex;flex-direction:column;padding:10px 0 20px}
.mobile-menu a{
  color:var(--dim);font-size:16.5px;font-weight:500;padding:14px 4px;
  border-bottom:1px solid rgba(255,255,255,.045);
}
.mobile-menu a:last-child{border-bottom:none}

@media (max-width:900px){
  .nav-links{display:none}
  .burger{display:flex}
  .mobile-menu{display:block}
  .nav-cta{margin-left:auto}
}
/* The CTA stays at every width — logo + CTA + burger fit inside 375px. */
@media (max-width:420px){.nav-cta{padding:10px 14px;font-size:13.5px}}
/* At 320px (iPhone SE and small Androids) the three nav items need ~308px of
   a 257px row, which scrolls the whole document sideways. Tighten rather than
   drop the CTA — it is the page's primary action. */
@media (max-width:380px){
  .wrap{padding:0 16px}
  .nav-in{gap:8px}
  .logo{font-size:15px;letter-spacing:2px;padding:7px 11px}
  .nav-cta{padding:9px 11px;font-size:12.5px}
  .burger{width:38px;height:38px;margin-left:4px}
}

/* ── Footer ─────────────────────────────────────────────────────── */
footer{border-top:1px solid var(--border);margin-top:90px;padding:60px 0 50px;position:relative;z-index:2}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;margin-bottom:52px}
@media (max-width:820px){.fgrid{grid-template-columns:1fr 1fr;gap:36px}}
@media (max-width:480px){.fgrid{grid-template-columns:1fr}}
.fbrand p{color:var(--muted);font-size:14.5px;line-height:1.7;margin-top:18px;max-width:280px}
.fcol h3{font-family:'Syne',sans-serif;font-weight:700;font-size:12px;letter-spacing:2px;
  text-transform:uppercase;color:var(--faint);margin-bottom:10px}
/* 24x24 is the WCAG 2.2 (2.5.8) minimum target; these were 218x23. */
.fcol a,.fcol span{display:block;color:var(--muted);font-size:14.5px;
  padding:7px 0;transition:color .18s}
.fcol a:hover{color:var(--blue)}
.fbot{border-top:1px solid var(--border);padding-top:28px;display:flex;
  justify-content:space-between;gap:8px 16px;flex-wrap:wrap;color:var(--faint);font-size:13.5px}
.fbot a{color:var(--faint);display:inline-block;padding:4px 0}
.fbot a:hover{color:var(--muted)}

/* ── Reveal on scroll ───────────────────────────────────────────── */
/* Gated on .js, set by an inline script in <head>. Without JavaScript the
   hidden state never applies at all, so the page renders in full rather
   than showing an empty shell. */
.js .reveal{
  opacity:0;transform:translateY(26px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  transition-delay:var(--d,0ms);
}
.js .reveal.in{opacity:1;transform:none}

/* ── Prose — the legal / document pages ─────────────────────────── */
.prose{max-width:760px;margin:0 auto;padding:56px 0 20px}
.prose h1{font-size:clamp(30px,4.6vw,44px);margin-bottom:10px}
.prose .updated{color:var(--faint);font-size:14px;margin-bottom:40px}
.prose h2{font-family:'Syne',sans-serif;font-weight:700;font-size:clamp(20px,2.6vw,25px);
  letter-spacing:-.4px;margin:44px 0 14px;padding-top:22px;border-top:1px solid var(--border)}
.prose h2:first-of-type{border-top:none;padding-top:0}
.prose h3{font-size:17px;margin:26px 0 10px;color:var(--dim)}
.prose p,.prose li{color:var(--dim);font-size:16.5px;line-height:1.75}
.prose p{margin-bottom:16px}
.prose ul,.prose ol{margin:0 0 18px 22px}
.prose li{margin-bottom:9px}
.prose strong{color:var(--text);font-weight:600}
.prose a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.prose code{background:rgba(255,255,255,.06);border:1px solid var(--border);
  padding:2px 6px;border-radius:5px;font-size:14px;color:var(--dim)}
.prose .muted{color:var(--muted);font-size:14.5px}
.prose .note{
  background:rgba(14,165,233,.07);border:1px solid rgba(14,165,233,.22);
  border-left:3px solid var(--blue);border-radius:0 12px 12px 0;
  padding:16px 20px;margin:22px 0;
}
.prose .note p:last-child{margin-bottom:0}
.prose .warn{
  background:rgba(244,63,94,.07);border:1px solid rgba(244,63,94,.24);
  border-left:3px solid var(--coral);border-radius:0 12px 12px 0;
  padding:16px 20px;margin:22px 0;
}
.prose .warn p:last-child{margin-bottom:0}
/* Wide tables must scroll inside their own box, never the page. */
.table-scroll{overflow-x:auto;margin:20px 0;
  border:1px solid var(--border);border-radius:14px}
.prose table{border-collapse:collapse;width:100%;min-width:520px;font-size:15px}
.prose th,.prose td{border-bottom:1px solid var(--border);padding:12px 16px;
  text-align:left;vertical-align:top;color:var(--dim)}
.prose tr:last-child td{border-bottom:none}
.prose th{background:rgba(255,255,255,.035);color:var(--text);
  font-family:'Syne',sans-serif;font-weight:700;font-size:13px;
  letter-spacing:.4px;text-transform:uppercase}

/* Back-to-home affordance on document pages */
.doc-back{display:inline-flex;align-items:center;gap:8px;color:var(--muted);
  font-size:14.5px;padding:8px 0;margin-bottom:8px}
.doc-back:hover{color:var(--blue)}

/* ── Print ──────────────────────────────────────────────────────── */
/* The legal pages are the ones people actually print or save as PDF. */
@media print{
  .aurora,.grid-veil,.progress,.skip,header.nav,.mobile-menu,
  .doc-back,.btn,footer .fgrid{display:none!important}
  html,body{background:#fff!important;color:#000!important}
  .prose{max-width:none;padding:0}
  .prose h1,.prose h2,.prose h3,.prose strong{color:#000!important}
  .prose p,.prose li,.prose td,.prose th{color:#1a1a1a!important}
  .prose h2{border-top:1px solid #ccc}
  .prose a{color:#000!important;text-decoration:underline}
  .prose a[href^="http"]::after{content:" (" attr(href) ")";font-size:11px;color:#555}
  .prose .note,.prose .warn{border:1px solid #ccc;background:#f7f7f7}
  .table-scroll{border:none;overflow:visible}
  .prose th,.prose td{border:1px solid #ccc}
  .prose th{background:#f0f0f0}
  footer{border-top:1px solid #ccc;margin-top:24px;padding:16px 0}
  .fbot{color:#555;border:none}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important}
  .js .reveal{opacity:1;transform:none}
}