/* ═══════════════════════════════════════════════════════════════
   TORSER — Shared site styles (subpages + main page)
   Minimal Oura-inspired editorial design system.
   Brand: purple + green + cream + ink
   ═══════════════════════════════════════════════════════════════ */

:root{
  --bg:#ffffff;
  --bg-soft:#f7f3fb;
  --bg-cream:#faf7f2;
  --bg-bone:#f1ebe1;
  --bg-warm:#e6dfd2;
  --bg-ink-soft:#161624;
  --ink:#1a1a2e;
  --ink-2:#3a3550;
  --muted:#6f6886;
  --line:#e7e0ee;
  --line-warm:#d8cfbf;
  --purple:#8a63c4;
  --purple-2:#6b3fa0;
  --purple-soft:#f0e8fa;
  --green:#3f8a5e;
  --green-2:#2d6645;
  --green-soft:#e3f1e9;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:'Geist','Inter',system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}

/* Paper grain overlay */
body::after{
  content:"";position:fixed;inset:0;z-index:148;pointer-events:none;
  opacity:.05;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.1  0 0 0 0 0.1  0 0 0 0 0.15  0 0 0 0.9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  background-size:220px 220px;
}

/* Typography utilities */
.serif{font-family:'DM Serif Display',Georgia,serif;letter-spacing:-.012em;font-weight:400}
.mono{font-family:'Geist Mono',ui-monospace,Menlo,monospace;letter-spacing:.16em;text-transform:uppercase;font-size:11px}
h1,h2,h3,h4,h5,h6{font-family:'DM Serif Display',Georgia,serif;font-weight:400;letter-spacing:-.018em;margin:0}
h1 em,h2 em,h3 em{font-style:italic;color:var(--purple);font-weight:400}
p{margin:0}

/* ─── Top nav (shared across all pages) ─── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  padding:16px 24px;
  backdrop-filter:saturate(140%) blur(8px);-webkit-backdrop-filter:saturate(140%) blur(8px);
}
.nav-inner{
  max-width:1400px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.nav-logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.nav-logo img{width:48px;height:48px;object-fit:contain}
.nav-logo .wordmark{
  font-family:'Anton','Impact',sans-serif;font-size:22px;font-weight:400;
  letter-spacing:.06em;color:var(--ink);text-transform:uppercase;line-height:1;
}
.nav-links{display:flex;gap:32px;list-style:none;margin:0;padding:0}
.nav-links a{
  font-size:14px;font-weight:500;color:var(--ink);
  padding:6px 0;position:relative;transition:color .25s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--purple);transform:scaleX(0);transform-origin:left;
  transition:transform .35s cubic-bezier(.2,.8,.2,1);
}
.nav-links a:hover{color:var(--purple)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;background:var(--purple);color:#fff;border-radius:999px;
  font-size:13px;font-weight:500;transition:background .25s,transform .25s;
}
.nav-cta:hover{background:var(--purple-2);transform:translateY(-1px)}
.nav-back{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;color:var(--ink-2);
  padding:8px 14px;border:1px solid var(--line);border-radius:999px;
  transition:.25s;
}
.nav-back:hover{border-color:var(--purple);color:var(--purple)}
@media(max-width:760px){
  .nav-links{display:none}
}

/* Push content below fixed nav */
main{padding-top:80px}

/* ─── Section base ─── */
.section{padding:120px 24px;position:relative;overflow:hidden}
.section-inner{max-width:1200px;margin:0 auto;position:relative}
.section.cream{background:var(--bg-cream)}
.section.bone{background:var(--bg-bone)}
.section.soft{background:var(--bg-soft)}
.section.dark{background:radial-gradient(circle at 30% 30%,#191934 0%,#0a0a14 75%);color:#fff}
.section.dark h1,.section.dark h2,.section.dark h3,.section.dark h4{color:#fff}
.section.dark h1 em,.section.dark h2 em,.section.dark h3 em{color:#d4b8f0}

/* Eyebrow label */
.eyebrow{
  display:inline-flex;align-items:center;gap:14px;
  font-family:'Geist Mono',ui-monospace,monospace;font-size:11px;
  letter-spacing:.22em;text-transform:uppercase;font-weight:600;
  color:var(--purple);margin-bottom:18px;
}
.eyebrow::before{content:"";width:36px;height:1px;background:currentColor}
.section.dark .eyebrow{color:#d4b8f0}

/* Section title */
.section h1,.section h2{
  font-size:clamp(2.6rem,6vw,5.2rem);line-height:1.02;letter-spacing:-.022em;
  margin-bottom:24px;max-width:900px;
}
.section h2.center{margin-left:auto;margin-right:auto;text-align:center}

/* Lede paragraph (large intro under heading) */
.lede{
  font-size:clamp(17px,1.6vw,20px);line-height:1.65;color:var(--ink-2);
  max-width:680px;margin-bottom:48px;
}
.section.dark .lede{color:rgba(255,255,255,.72)}

/* ─── Hero poster (Oura-style full-bleed) ─── */
.hero-poster{
  position:relative;min-height:80vh;padding:140px 24px 100px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  background:linear-gradient(180deg,rgba(0,0,0,.32),rgba(0,0,0,.18)),var(--bg-bone);
  color:#fff;overflow:hidden;
}
.hero-poster .bg-img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  z-index:0;
}
.hero-poster::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,10,20,.36) 0%,rgba(10,10,20,.18) 50%,rgba(10,10,20,.42) 100%);
  z-index:1;pointer-events:none;
}
.hero-poster-inner{position:relative;z-index:2;max-width:920px;margin:0 auto}
.hero-poster .eyebrow{color:rgba(255,255,255,.85);margin-bottom:24px;justify-content:center}
.hero-poster .eyebrow::before{background:rgba(255,255,255,.6)}
.hero-poster h1{
  color:#fff;font-size:clamp(2.8rem,7vw,6rem);line-height:1.0;letter-spacing:-.025em;
  margin:0 auto 28px;max-width:880px;
}
.hero-poster h1 em{color:#d4b8f0;font-style:italic}
.hero-poster .lede{color:rgba(255,255,255,.82);margin:0 auto 40px;text-align:center}
.hero-poster-ctas{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:16px 26px;background:var(--purple);color:#fff;border-radius:999px;
  font-family:'Geist',sans-serif;font-size:14px;font-weight:500;
  letter-spacing:.01em;transition:background .25s,transform .25s,box-shadow .25s;
  border:none;cursor:pointer;text-decoration:none;
}
.btn:hover{background:var(--purple-2);transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(138,99,196,.45)}
.btn-arrow{
  width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,.18);
  display:grid;place-items:center;transition:transform .25s;
}
.btn:hover .btn-arrow{transform:translateX(3px)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--ink);color:#fff}

/* ─── 3-column icon feature grid ─── */
.feat-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin:48px auto;max-width:1080px;
}
.feat-cell{
  padding:48px 32px;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:14px;
}
.feat-cell:last-child{border-right:none}
.feat-icon{
  width:56px;height:56px;border-radius:50%;background:var(--purple-soft);
  display:grid;place-items:center;color:var(--purple);margin-bottom:6px;
}
.feat-icon svg{width:28px;height:28px;stroke-width:1.4}
.feat-cell h3{font-size:24px;font-weight:400;color:var(--ink);margin:0}
.feat-cell p{font-size:14.5px;line-height:1.6;color:var(--ink-2);margin:0}
.section.dark .feat-grid{border-color:rgba(255,255,255,.12)}
.section.dark .feat-cell{border-color:rgba(255,255,255,.12)}
.section.dark .feat-cell h3{color:#fff}
.section.dark .feat-cell p{color:rgba(255,255,255,.7)}
.section.dark .feat-icon{background:rgba(212,184,240,.12);color:#d4b8f0}
@media(max-width:880px){
  .feat-grid{grid-template-columns:1fr;max-width:520px}
  .feat-cell{border-right:none;border-bottom:1px solid var(--line);padding:32px 24px}
  .feat-cell:last-child{border-bottom:none}
}

/* ─── Big stat moment (full-bleed numerical hero) ─── */
.stat-block{
  text-align:center;padding:140px 24px;background:var(--bg-bone);
}
.stat-block .stat-num{
  font-family:'DM Serif Display',Georgia,serif;font-weight:400;
  font-size:clamp(7rem,16vw,16rem);line-height:.85;color:var(--ink);
  letter-spacing:-.045em;display:block;margin-bottom:18px;
}
.stat-block .stat-num em{color:var(--purple);font-style:italic}
.stat-block .stat-num .unit{font-size:.4em;color:var(--ink-2);font-style:italic;margin-left:8px}
.stat-block .stat-lbl{
  font-family:'Geist Mono',ui-monospace,monospace;font-size:12px;
  letter-spacing:.24em;text-transform:uppercase;color:var(--ink-2);
}
.stat-block.dark{background:var(--bg-ink-soft);color:#fff}
.stat-block.dark .stat-num{color:#fff}
.stat-block.dark .stat-num em{color:#d4b8f0}
.stat-block.dark .stat-num .unit{color:rgba(255,255,255,.6)}
.stat-block.dark .stat-lbl{color:rgba(255,255,255,.55)}

/* ─── Definition list (tech specs) ─── */
.spec-dl{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line)}
.spec-row{
  display:grid;grid-template-columns:1fr auto;gap:24px;align-items:baseline;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.spec-row dt{
  font-family:'Geist Mono',ui-monospace,monospace;font-size:11px;
  letter-spacing:.2em;text-transform:uppercase;color:var(--ink-2);font-weight:500;margin:0;
}
.spec-row dd{
  margin:0;font-family:'DM Serif Display',Georgia,serif;font-style:italic;
  font-size:24px;font-weight:400;color:var(--ink);letter-spacing:-.012em;line-height:1;
}
.spec-row dd em{
  color:var(--purple);font-style:italic;font-size:.6em;
  margin-left:2px;font-family:'Geist',sans-serif;
  font-weight:500;letter-spacing:0;text-transform:lowercase;
}
.spec-group-title{
  font-family:'Geist Mono',monospace;font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--purple);font-weight:600;
  margin-top:36px;margin-bottom:14px;padding-bottom:10px;
  border-bottom:2px solid var(--purple);
}

/* ─── Footer (shared) ─── */
.footer{
  background:#fff;border-top:1px solid var(--line);padding:64px 24px 32px;
}
.footer-inner{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px}
.footer-brand img{width:56px;height:56px;object-fit:contain;margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--ink-2);max-width:380px;line-height:1.6}
.footer-col h5{
  font-family:'Geist Mono',monospace;font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:16px;
}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.footer-col a{font-size:14px;color:var(--ink-2);transition:color .2s}
.footer-col a:hover{color:var(--purple)}
.footer-bot{
  max-width:1400px;margin:48px auto 0;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12px;color:var(--muted);
}
@media(max-width:880px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* Tabbed showcase (reusable from main page pattern) */
.tabs{margin:48px 0}
.tablist{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-bottom:48px;
}
.tab{
  flex:1;min-width:160px;padding:22px 18px;background:transparent;border:none;
  font-family:'Geist',sans-serif;font-size:13.5px;font-weight:500;color:var(--ink-2);
  text-align:left;cursor:pointer;position:relative;
  border-right:1px solid var(--line);
  transition:color .3s ease,background .3s ease;
  display:flex;flex-direction:column;gap:6px;
}
.tab:last-child{border-right:none}
.tab::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:2px;background:var(--purple);
  transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.2,.8,.2,1);
}
.tab .tab-num{
  font-family:'Geist Mono',monospace;font-size:10px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--muted);font-weight:500;
}
.tab .tab-name{
  font-family:'DM Serif Display',Georgia,serif;font-style:italic;
  font-size:20px;color:var(--ink);font-weight:400;letter-spacing:-.01em;line-height:1.1;
}
.tab:hover{background:rgba(138,99,196,.04)}
.tab.is-active{background:rgba(138,99,196,.06)}
.tab.is-active::before{transform:scaleX(1)}
.tab.is-active .tab-name,.tab.is-active .tab-num{color:var(--purple)}

.tab-panel-wrap{position:relative;min-height:360px}
.tab-panel{
  display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center;
  opacity:0;visibility:hidden;position:absolute;inset:0;
  transition:opacity .45s ease,visibility .45s;
}
.tab-panel.is-active{opacity:1;visibility:visible;position:relative}
@media(max-width:880px){
  .tab-panel{grid-template-columns:1fr;gap:28px}
  .tablist{overflow-x:auto;flex-wrap:nowrap}
  .tab{flex:none;min-width:140px}
}

/* Page CTA banner (bottom of subpages) */
.cta-banner{
  text-align:center;padding:120px 24px;background:var(--bg-ink-soft);color:#fff;
}
.cta-banner h2{color:#fff;font-size:clamp(2.4rem,5vw,4rem);max-width:780px;margin:0 auto 20px}
.cta-banner h2 em{color:#d4b8f0;font-style:italic}
.cta-banner p{color:rgba(255,255,255,.72);max-width:580px;margin:0 auto 36px;font-size:17px}