/* FlowState Book door. Theme D: deep plum field, gold as edge accent only,
   glass panels and buttons, Exo 2, headlines at 600. */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0d0618; --plum:#1d0f33; --plum2:#140a26;
  --glass:rgba(38,22,64,.62); --glass-edge:rgba(217,164,65,.38);
  --line:#3a2560; --line-soft:rgba(122,92,180,.28);
  --ink:#f0ecf8; --muted:#b3a8c9; --faint:#8477a3;
  --gold:#d9a441; --violet-lt:#c9b6ff;
  --radius:18px;
}
html{scroll-behavior:smooth}
body{
  margin:0; color:var(--ink);
  background:var(--bg) radial-gradient(1500px 950px at 50% 0%, #27134a 0%, #180b30 48%, var(--bg) 100%);
  background-attachment:fixed;
  font-family:"Exo 2","Segoe UI",system-ui,-apple-system,Helvetica,Arial,sans-serif;
  font-size:16.5px; line-height:1.55;
}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
a{color:var(--violet-lt)}
h1,h2,h3{font-family:"Exo 2",sans-serif;line-height:1.15}

/* top bar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(13,6,24,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--glass-edge)}
.topbar-in{display:flex;align-items:center;gap:14px;padding:12px 20px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand img{width:36px;height:36px;border-radius:50%}
.brand .bt{font-weight:700;font-size:18px;letter-spacing:.02em}
.brand .bt span{color:var(--violet-lt)}
nav.main{display:flex;gap:4px;flex-wrap:wrap;margin-left:auto}
nav.main a{color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:600;padding:8px 13px;border-radius:10px;border:1px solid transparent}
nav.main a:hover{color:var(--ink);border-color:var(--line-soft);background:rgba(38,22,64,.5)}
.chip{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;padding:5px 11px;border-radius:999px;border:1px solid var(--line-soft);color:var(--muted);background:rgba(20,10,38,.7);white-space:nowrap}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--gold)}

/* glass + buttons */
.glass{
  background:linear-gradient(165deg, rgba(64,42,110,.55), rgba(24,13,46,.72));
  border:1px solid var(--glass-edge);
  border-radius:var(--radius);
  box-shadow:0 24px 60px rgba(0,0,0,.5), inset 0 1px 0 rgba(240,236,248,.14);
  backdrop-filter:blur(10px);
}
.btn{
  display:inline-block;text-decoration:none;font-weight:700;font-size:15.5px;
  padding:13px 26px;border-radius:14px;color:#fff;
  border:1px solid var(--glass-edge);
  background:linear-gradient(180deg, rgba(146,116,224,.85), rgba(84,54,156,.9));
  box-shadow:0 10px 30px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.35), inset 0 -8px 18px rgba(20,8,44,.35);
}
.btn:hover{filter:brightness(1.12)}
.btn.big{font-size:18px;padding:17px 40px;border-radius:16px}
.btn.ghost{
  background:linear-gradient(180deg, rgba(64,42,110,.45), rgba(24,13,46,.6));
  color:var(--ink);box-shadow:0 8px 22px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.18);
}
.btn.ghost:hover{border-color:var(--gold)}

/* swirl hero */
.swirl{position:relative;overflow:hidden;border-bottom:1px solid var(--glass-edge)}
.swirl-media{position:absolute;inset:0}
.swirl-media video,.swirl-media .swirl-poster{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
}
.swirl-media .swirl-poster{display:none}
.swirl-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(13,6,24,.42) 0%, rgba(13,6,24,.08) 34%, rgba(13,6,24,.18) 62%, var(--bg) 100%);
}
body.reduced-motion .swirl-media video{display:none}
body.reduced-motion .swirl-media .swirl-poster{display:block}
@media (prefers-reduced-motion: reduce){
  .swirl-media video{display:none}
  .swirl-media .swirl-poster{display:block}
  html{scroll-behavior:auto}
}
.swirl-in{position:relative;z-index:2;display:flex;align-items:flex-end;min-height:min(76vh,720px);padding:56px 20px 64px}
.hero-card{max-width:620px;padding:34px 36px}
.eyebrow{color:var(--gold);font-size:13px;font-weight:600;letter-spacing:.34em;text-transform:uppercase}
.hero-card h1{font-size:clamp(40px,6vw,62px);font-weight:600;margin:16px 0 10px;letter-spacing:-.01em}
.hero-card .sub{color:var(--muted);font-size:18.5px}
.hero-card .sub b{color:var(--ink)}
.hero-cta{margin-top:26px}
.note{font-size:13.5px;color:var(--faint);margin-top:16px}
.sound-toggle{
  position:absolute;right:18px;bottom:18px;z-index:3;cursor:pointer;
  font-family:"Exo 2",sans-serif;font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--ink);padding:8px 14px;border-radius:999px;
  border:1px solid var(--glass-edge);
  background:linear-gradient(180deg, rgba(64,42,110,.65), rgba(24,13,46,.8));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25);
}

/* sections */
section{padding:54px 0 10px}
.sec-head{max-width:760px;margin:0 auto 28px;text-align:center}
.sec-head .eyebrow{text-align:center}
.sec-head h2{font-size:clamp(28px,4vw,38px);font-weight:600;margin:12px 0 10px}
.sec-head p{color:var(--muted);font-size:17.5px}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step-card{padding:24px}
.step-card .step{font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.step-card h3{font-size:20.5px;font-weight:600;margin:9px 0 7px}
.step-card p{color:var(--muted);font-size:15px;margin:0}

/* footer */
footer{margin-top:64px;border-top:1px solid var(--glass-edge);padding:32px 0 46px;color:var(--faint);font-size:14px}
.foot-brand{display:flex;align-items:center;gap:11px;color:var(--muted);font-weight:600}
.foot-brand img{width:30px;height:30px;border-radius:50%}
.foot-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.foot-note{margin-top:20px}
.foot-text-link{color:var(--violet-lt)}

@media (max-width:820px){
  .trio{grid-template-columns:1fr}
  .swirl-in{min-height:0;padding:44px 20px 72px}
  .hero-card{padding:26px 22px}
  body{font-size:16px}
}