/* ============================================================
   Sylume — marketing site styles
   Locked brand tokens. Dark-first, warm amber on near-black.
   ============================================================ */

/* Self-hosted Inter (variable) — no third-party font requests.
   WOFF (active, ~454KB) with TTF fallback. To upgrade to WOFF2 later,
   add inter-variable.woff2 to site-assets, list it as the FIRST src
   with format woff2, and repoint the preload link in the HTML. See README. */
@font-face{
  font-family:'Inter';
  src:url('site-assets/inter-variable.woff') format('woff'),
      url('site-assets/Inter-Variable.ttf') format('truetype-variations');
  font-weight:100 900;
  font-style:normal;
  font-display:swap;
}

:root{
  --bg:#0B0D10;
  --surface:#14171C;
  --surface2:#1B1F26;
  --surface3:#242932;
  --line:rgba(245,243,238,0.08);
  --line-strong:rgba(245,243,238,0.14);
  --primary:#E8C77A;
  --primaryDim:rgba(232,199,122,0.16);
  --primaryHi:#F2D998;
  --onPrimary:#1A140A;
  --textHigh:#F5F3EE;
  --textMed:rgba(245,243,238,0.66);
  --textLow:rgba(245,243,238,0.56);
  --textLowDecor:rgba(245,243,238,0.40);

  /* source hues — equal weight, hue-varied */
  --hue-xtream:oklch(0.80 0.10 85);
  --hue-m3u:oklch(0.80 0.10 200);
  --hue-portal:oklch(0.80 0.10 30);
  --hue-addon:oklch(0.80 0.10 300);
  --hue-plex:oklch(0.80 0.10 145);

  --maxw:1200px;
  --gutter:clamp(20px,5vw,48px);
  --ease:cubic-bezier(0.22,0.61,0.36,1);
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
html{scroll-padding-top:88px;}
body{
  background:var(--bg);
  color:var(--textHigh);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-size:18px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
::selection{background:var(--primaryDim);color:var(--primaryHi);}

/* keyboard focus — visible amber ring, never on mouse */
:focus-visible{outline:2px solid var(--primaryHi);outline-offset:3px;border-radius:6px;}
a:focus-visible,.btn:focus-visible,.nav-cta:focus-visible,.nav-toggle:focus-visible{outline:2px solid var(--primaryHi);outline-offset:3px;}

/* ---------- shared layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter);}
.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:0.16em;text-transform:uppercase;
  color:var(--primary);margin-bottom:18px;
}
section{position:relative;}
.section-pad{padding-block:clamp(80px,11vw,150px);}

h1,h2,h3{letter-spacing:-0.02em;line-height:1.04;font-weight:800;text-wrap:balance;}
h2.display{font-size:clamp(32px,4.6vw,58px);}
h3{font-weight:700;letter-spacing:-0.015em;}
p{text-wrap:pretty;}
.lead{color:var(--textMed);font-size:clamp(17px,1.5vw,21px);line-height:1.55;max-width:46ch;}

/* ---------- brand wordmark ---------- */
.brandmark{display:inline-flex;align-items:baseline;font-weight:800;letter-spacing:-0.02em;font-size:24px;line-height:1;}
.brandmark .io{color:var(--primary);}
.brandmark .dot{
  width:7px;height:7px;border-radius:50%;background:var(--primary);
  margin-left:5px;align-self:center;
  box-shadow:0 0 12px var(--primary),0 0 4px var(--primaryHi);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:600;font-size:16px;border-radius:12px;
  padding:15px 26px;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);color:var(--onPrimary);
  box-shadow:0 0 0 1px rgba(232,199,122,0.4),0 10px 40px -8px rgba(232,199,122,0.45);
}
.btn-primary:hover{background:var(--primaryHi);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(242,217,152,0.6),0 18px 56px -8px rgba(232,199,122,0.6);}
.btn-ghost{background:transparent;color:var(--textHigh);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primaryHi);background:var(--primaryDim);}
.btn-lg{font-size:18px;padding:18px 34px;border-radius:14px;}
.btn .ic{width:20px;height:20px;flex:0 0 auto;}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:100;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(11,13,16,0.72);
  backdrop-filter:blur(18px) saturate(1.2);
  -webkit-backdrop-filter:blur(18px) saturate(1.2);
  border-bottom-color:var(--line);
}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:18px var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:24px;}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links a.lnk{font-size:15px;font-weight:500;color:var(--textMed);transition:color .2s var(--ease);}
.nav-links a.lnk:hover{color:var(--textHigh);}
.nav-cta{
  font-size:15px;font-weight:600;color:var(--primary);white-space:nowrap;
  padding:10px 20px;border-radius:10px;border:1px solid rgba(232,199,122,0.35);
  transition:all .2s var(--ease);
}
.nav-cta:hover{background:var(--primaryDim);border-color:var(--primary);box-shadow:0 0 24px -6px rgba(232,199,122,0.5);}
.nav-toggle{display:none;background:none;border:0;color:var(--textHigh);cursor:pointer;padding:8px;}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding-top:120px;padding-bottom:60px;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none;}
.hero-bg .glow{
  position:absolute;border-radius:50%;filter:blur(80px);opacity:0.6;
}
.hero-bg .glow-amber{
  width:60vw;height:60vw;right:-12vw;top:6%;
  background:radial-gradient(circle,rgba(232,199,122,0.22),transparent 62%);
}
.hero-bg .glow-cool{
  width:50vw;height:50vw;left:-16vw;bottom:-10%;
  background:radial-gradient(circle,rgba(120,150,200,0.10),transparent 64%);
}
.hero-bg .vignette{
  position:absolute;inset:0;
  background:radial-gradient(120% 90% at 70% 30%,transparent 40%,rgba(7,8,10,0.7) 100%);
}
.hero-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;
  align-items:center;gap:clamp(32px,5vw,72px);width:100%;
}
.hero-copy{max-width:560px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:0.04em;
  color:var(--primary);background:var(--primaryDim);
  border:1px solid rgba(232,199,122,0.3);
  padding:7px 15px;border-radius:999px;margin-bottom:24px;white-space:nowrap;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.hero h1{font-size:clamp(40px,6vw,76px);letter-spacing:-0.03em;line-height:0.98;}
.hero h1 .amber{color:var(--primary);}
.hero-sub{margin-top:26px;color:var(--textMed);font-size:clamp(18px,1.7vw,22px);line-height:1.5;max-width:30ch;}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:40px;}
.hero-link{display:inline-flex;align-items:center;gap:8px;font-weight:500;color:var(--textHigh);font-size:16px;}
.hero-link .arr{transition:transform .2s var(--ease);}
.hero-link:hover{color:var(--primaryHi);}
.hero-link:hover .arr{transform:translateX(4px);}
.hero-micro{margin-top:30px;font-size:14.5px;color:var(--textLow);display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;}
.hero-micro .sep{width:3px;height:3px;border-radius:50%;background:var(--textLow);}

/* hero TV */
.hero-stage{position:relative;justify-self:center;width:100%;}

/* ---------- TV mockup ---------- */
.tv{position:relative;width:100%;}
.tv-screen{
  position:relative;border-radius:14px;overflow:hidden;
  background:#06080b;
  border:1px solid rgba(245,243,238,0.10);
  box-shadow:
    inset 0 0 0 8px #0a0c0f,
    inset 0 0 0 9px rgba(245,243,238,0.06),
    0 40px 120px -30px rgba(0,0,0,0.9);
  aspect-ratio:16/9;
}
.tv-screen::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(120deg,rgba(255,255,255,0.06),transparent 30%,transparent 75%,rgba(255,255,255,0.03));
}
.tv-screen img{width:100%;height:100%;object-fit:cover;}
.tv-glow{
  position:absolute;inset:-8% -6% -22% -6%;z-index:-1;border-radius:30px;
  background:radial-gradient(60% 60% at 70% 30%,rgba(232,199,122,0.28),transparent 70%);
  filter:blur(46px);
}
/* hero-only mount: stand + room reflection */
.tv-mount{position:relative;}
.tv-mount::before{
  content:"";position:absolute;left:50%;bottom:-34px;transform:translateX(-50%);
  width:14%;height:30px;background:linear-gradient(#1a1e24,#0d1014);
  border-radius:0 0 6px 6px;
}
.tv-mount::after{
  content:"";position:absolute;left:50%;bottom:-44px;transform:translateX(-50%);
  width:34%;height:10px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(0,0,0,0.6),transparent);
}

/* placeholder slot styling (when no img) */
.slot{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:
    repeating-linear-gradient(45deg,#15181d,#15181d 14px,#181c22 14px,#181c22 28px);
  color:var(--textLow);font-family:'JetBrains Mono',ui-monospace,monospace;font-size:13px;
  text-align:center;padding:24px;letter-spacing:0.02em;
}

/* ============================================================
   SOURCES
   ============================================================ */
.sect-head{max-width:680px;margin-bottom:clamp(40px,5vw,64px);}
.sect-head h2{margin-top:0;}
.sect-head .lead{margin-top:18px;max-width:54ch;}
.center{margin-inline:auto;text-align:center;}
.center .lead{margin-inline:auto;}

.source-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.source-card{
  background:linear-gradient(180deg,var(--surface2),var(--surface));
  border:1px solid var(--line);border-radius:18px;padding:28px 26px 30px;
  position:relative;overflow:hidden;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.source-card:hover{transform:translateY(-4px);border-color:var(--line-strong);
  box-shadow:0 24px 60px -28px rgba(0,0,0,0.8);}
.source-card .accent-glow{
  position:absolute;top:-30%;right:-20%;width:160px;height:160px;border-radius:50%;
  filter:blur(40px);opacity:0.5;background:var(--ac);
}
.source-icon{width:54px;height:54px;margin-bottom:22px;position:relative;z-index:1;}
.source-icon svg{width:100%;height:100%;}
.source-card h3{font-size:21px;position:relative;z-index:1;}
.source-card .kicker{
  font-size:12px;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;
  color:var(--ac);margin-bottom:6px;position:relative;z-index:1;
}
.source-card p{color:var(--textMed);font-size:15.5px;margin-top:12px;position:relative;z-index:1;}
.source-note{
  margin-top:34px;text-align:center;color:var(--textLow);font-size:15px;
}
.source-note b{color:var(--textMed);font-weight:600;}

/* ============================================================
   FEATURES (alternating)
   ============================================================ */
.feature{display:grid;grid-template-columns:1fr 1fr;align-items:center;
  gap:clamp(40px,6vw,90px);padding-block:clamp(56px,7vw,96px);}
.feature.flip .feature-media{order:-1;}
.feature-copy{max-width:480px;}
.feature-copy h3{font-size:clamp(26px,3vw,40px);letter-spacing:-0.02em;}
.feature-copy .lead{margin-top:20px;}
.feature-list{margin-top:26px;display:flex;flex-direction:column;gap:13px;}
.feature-list li{display:flex;align-items:flex-start;gap:13px;list-style:none;color:var(--textMed);font-size:16px;}
.feature-list .tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;margin-top:1px;
  background:var(--primaryDim);display:flex;align-items:center;justify-content:center;
}
.feature-list .tick svg{width:13px;height:13px;stroke:var(--primary);}
.feature-media{position:relative;}

/* ============================================================
   PRIVACY
   ============================================================ */
.privacy{
  background:
    radial-gradient(90% 120% at 50% -10%,rgba(232,199,122,0.07),transparent 60%),
    var(--surface);
  border-block:1px solid var(--line);
}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:clamp(40px,5vw,60px);}
.pillar{
  background:rgba(11,13,16,0.5);border:1px solid var(--line);border-radius:18px;
  padding:34px 30px;
}
.pillar-ic{width:46px;height:46px;border-radius:12px;background:var(--primaryDim);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;}
.pillar-ic svg{width:24px;height:24px;stroke:var(--primary);}
.pillar h3{font-size:22px;}
.pillar p{color:var(--textMed);font-size:15.5px;margin-top:10px;}

/* ============================================================
   BIG SCREEN
   ============================================================ */
.platform-chips{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.chip{
  display:inline-flex;align-items:center;gap:11px;
  background:var(--surface2);border:1px solid var(--line-strong);
  border-radius:999px;padding:13px 22px;font-weight:600;font-size:15.5px;
}
.chip .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.chip.soon{color:var(--textMed);}
.chip.soon .dot{background:var(--textLow);box-shadow:none;}
.chip.soon .tag{font-size:11px;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;
  color:var(--primary);background:var(--primaryDim);padding:3px 8px;border-radius:6px;margin-left:2px;}

/* ============================================================
   EARLY ACCESS (reuses .download shell)
   ============================================================ */
.access-status{margin-top:38px;display:flex;flex-direction:column;align-items:center;gap:16px;}
.status-pill{
  display:inline-flex;align-items:center;gap:11px;white-space:nowrap;
  background:var(--surface2);border:1px solid var(--line-strong);
  border-radius:999px;padding:13px 24px;font-weight:600;font-size:15.5px;color:var(--textMed);
}
.status-pill .dot{width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.access-note{color:var(--textLow);font-size:15px;}
.access-note a{color:var(--primary);border-bottom:1px solid rgba(232,199,122,0.4);padding-bottom:1px;transition:color .2s var(--ease),border-color .2s var(--ease);}
.access-note a:hover{color:var(--primaryHi);border-color:var(--primaryHi);}

/* ============================================================
   DOWNLOAD
   ============================================================ */
.download{
  position:relative;overflow:hidden;
  background:
    radial-gradient(70% 90% at 50% 0%,rgba(232,199,122,0.10),transparent 60%),
    var(--bg);
  border-top:1px solid var(--line);
}
.download .wrap{text-align:center;position:relative;z-index:1;}
.download h2{font-size:clamp(34px,5vw,62px);letter-spacing:-0.025em;}
.download .lead{margin:22px auto 0;text-align:center;}
.download-cta{margin-top:40px;display:flex;flex-direction:column;align-items:center;gap:14px;}
.download-meta{font-size:14px;color:var(--textLow);}
.download-meta code{font-family:'JetBrains Mono',ui-monospace,monospace;color:var(--textMed);font-size:13px;}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:clamp(54px,7vw,80px);text-align:left;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:30px 28px;
  position:relative;
}
.step .num{
  font-family:'JetBrains Mono',ui-monospace,monospace;font-size:14px;font-weight:500;
  color:var(--onPrimary);background:var(--primary);width:34px;height:34px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
}
.step h3{font-size:19px;}
.step p{color:var(--textMed);font-size:15px;margin-top:9px;}
.download-foot{margin-top:40px;font-size:14.5px;color:var(--textLow);}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{border-top:1px solid var(--line);padding-block:56px;background:var(--surface);}
.footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:28px;align-items:flex-start;}
.footer .legal{max-width:46ch;color:var(--textLow);font-size:14px;line-height:1.6;margin-top:18px;}
.footer .foot-right{text-align:right;display:flex;flex-direction:column;gap:10px;align-items:flex-end;}
.footer .foot-right a{color:var(--textMed);font-size:15px;transition:color .2s var(--ease);}
.footer .foot-right a:hover{color:var(--primary);}
.footer .copy{color:var(--textLow);font-size:13.5px;}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.08s;}
.reveal.d2{transition-delay:.16s;}
.reveal.d3{transition-delay:.24s;}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:48px;}
  .hero-copy{max-width:640px;}
  .hero-stage{max-width:620px;}
  .hero{min-height:auto;}
  .feature{grid-template-columns:1fr;gap:44px;}
  .feature.flip .feature-media{order:0;}
  .feature-media{max-width:600px;}
  .source-grid{grid-template-columns:repeat(3,1fr);}
  .pillars{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
}
@media (max-width:720px){
  body{font-size:17px;}
  .nav-links{
    position:fixed;inset:64px 12px auto 12px;flex-direction:column;align-items:stretch;gap:6px;
    background:rgba(16,19,24,0.96);backdrop-filter:blur(20px);
    border:1px solid var(--line);border-radius:16px;padding:14px;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:all .24s var(--ease);
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto;}
  .nav-links a.lnk{padding:12px 14px;border-radius:10px;font-size:16px;}
  .nav-links a.lnk:hover{background:var(--surface2);}
  .nav-cta{text-align:center;}
  .nav-toggle{display:inline-flex;}
  .footer .wrap{flex-direction:column;}
  .footer .foot-right{text-align:left;align-items:flex-start;}
  .source-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:440px){
  .source-grid{grid-template-columns:1fr;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
}