:root{
  --ink:#15120f;
  --ink-soft:#4f463d;
  --muted:#796f64;
  --line:#eadfce;
  --paper:#fffdf8;
  --cream:#fbf5ea;
  --cream-2:#f4ead9;
  --gold:#b88725;
  --gold-2:#f3dc9a;
  --gold-ink:#956314;
  --rose:#e8b7aa;
  --shadow:0 24px 70px rgba(66,45,20,.13);
  --display:"Jost",system-ui,sans-serif;
  --sans:"Plus Jakarta Sans",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font-family:var(--sans);line-height:1.58;background:var(--paper)}
a{color:inherit}
.platform-body{
  position:relative;
  min-height:100vh;
  background:#fffdf8;
  overflow-x:hidden;
}
.platform-body::before{
  content:none;
}
.shell{width:min(1160px,calc(100% - 36px));margin:0 auto}
.topbar{
  position:sticky;top:0;z-index:20;
  padding:18px 0 6px;
  background:transparent;
  border-bottom:0;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  min-height:62px;
  padding:.5rem .55rem .5rem 1.35rem;
  border-radius:999px;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.9), inset 0 0 0 1px rgba(138,101,32,.14), 0 8px 28px rgba(60,48,28,.10);
}
.brand{display:inline-flex;align-items:center;gap:.6rem;margin-right:auto;min-width:0;text-decoration:none;color:var(--ink)}
.brand-mark-plate{display:grid;place-items:center}
.brand-mark{display:block;width:auto;height:34px}
.brand-name{font-family:var(--display);font-size:.95rem;font-weight:400;letter-spacing:.2em;text-transform:uppercase;white-space:nowrap;color:#7a5416}
.nav{display:flex;align-items:center;gap:.35rem;flex:0 1 auto;flex-wrap:nowrap;justify-content:flex-end;min-width:0}
.nav a{
  position:relative;
  min-height:38px;display:inline-flex;align-items:center;
  padding:0 .8rem;text-decoration:none;white-space:nowrap;
  color:var(--ink-soft);font-size:.83rem;font-weight:600;
  transition:color .35s ease;
}
.nav a::after{
  content:"";position:absolute;left:.8rem;right:.8rem;bottom:6px;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .35s ease;
}
.nav a:hover{color:var(--gold-ink)}
.nav a:hover::after{transform:scaleX(1)}
.nav-cta{flex:0 0 auto;min-height:44px;padding:.4rem .5rem .4rem 1.15rem;font-size:.82rem;white-space:nowrap}
.nav-cta .knob{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.5);box-shadow:inset 0 0 0 1px rgba(138,101,32,.16)}
.nav-cta svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.section{position:relative;z-index:2;padding:clamp(44px,7vw,88px) 0}
.section::before{
  content:"";position:absolute;inset:auto 0 0;z-index:-1;height:42%;
  background:linear-gradient(180deg,transparent,rgba(255,253,248,.86));
}
.auth-wrap.section::before{content:none}
h1,h2,h3{font-family:var(--display);font-weight:300;letter-spacing:0;margin:0 0 .8rem;line-height:1.02}
h1{font-size:clamp(2.4rem,6vw,5.2rem);color:#1a1511}
h2{font-size:clamp(1.45rem,3vw,2.35rem)}
h3{font-size:1.08rem;font-weight:400}
p{margin:0 0 1rem}
.muted{color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:.7rem;margin:0 0 .85rem;
  color:var(--gold-ink);font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);align-items:start}
.list{display:grid;gap:18px}
.card{
  position:relative;overflow:hidden;
  border:1px solid rgba(184,135,37,.22);
  border-radius:28px;
  background:linear-gradient(145deg,rgba(255,253,248,.94),rgba(255,248,235,.82));
  padding:clamp(22px,3.2vw,38px);
  box-shadow:var(--shadow);
}
.card::before{
  content:"";position:absolute;inset:0 0 auto;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.9),transparent);
}
.auth-wrap{
  min-height:calc(100vh - 86px);
  display:grid;
  align-items:center;
  overflow:hidden;
  background:#fffdf8;
}
.auth-wrap > .shell{position:relative;z-index:3}
.auth-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(340px,480px);gap:clamp(24px,5vw,72px);align-items:center}
.auth-copy{max-width:58ch}
.auth-copy h1{margin-bottom:1rem}
.auth-copy p{font-size:1.05rem;color:var(--ink-soft)}
.auth-points{display:grid;gap:.78rem;margin:1.4rem 0 0;padding:0;list-style:none;color:var(--ink-soft)}
.auth-points li{display:flex;gap:.72rem;align-items:flex-start}
.auth-points li::before{
  content:"";width:10px;height:10px;border-radius:50%;flex:0 0 auto;margin-top:.48rem;
  background:linear-gradient(135deg,#fff7dc,var(--gold));box-shadow:0 0 0 4px rgba(184,135,37,.12);
}
.auth-card{max-width:none}
.form{display:grid;gap:16px;margin-top:18px}
.field{display:grid;gap:7px}
.field label{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;font-weight:700;color:var(--gold-ink)}
.field input{
  width:100%;min-height:52px;border:1px solid rgba(126,103,74,.34);
  border-radius:16px;padding:0 16px;background:rgba(255,253,248,.84);
  color:var(--ink);font:inherit;outline:none;
}
.field input:focus{border-color:var(--gold);box-shadow:0 0 0 4px rgba(184,135,37,.12);background:white}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.65rem;
  min-height:50px;border:0;border-radius:999px;padding:0 22px;
  background:linear-gradient(135deg,#9f741f 0%,#f8df9a 48%,#a47722 100%);
  color:#171006;font-weight:800;text-decoration:none;cursor:pointer;
  box-shadow:0 18px 38px rgba(137,89,19,.2);
}
.btn:hover{filter:saturate(1.05) brightness(1.02);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,253,248,.75);border:1px solid rgba(184,135,37,.28);box-shadow:none;color:var(--gold-ink)}
.alert{border:1px solid #efc6bc;border-radius:16px;padding:13px 15px;background:#fff4f1;color:#8c2e1e}
.success{border-color:#bfd9bd;background:#f4fff5;color:#236329}
.lesson-list{display:grid;gap:10px;padding:0;margin:1rem 0 0;list-style:none}
.lesson-link{
  display:flex;justify-content:space-between;gap:12px;align-items:center;
  border:1px solid rgba(184,135,37,.2);border-radius:18px;padding:14px 16px;
  background:rgba(255,253,248,.62);text-decoration:none;
}
.lesson-link:hover{background:white}
.course-format{
  display:inline-flex;margin:0 0 .8rem;padding:.35rem .75rem;border-radius:999px;
  background:rgba(184,135,37,.1);color:var(--gold-ink);
  font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;font-weight:800;
}
.page-head{max-width:760px;margin-bottom:clamp(22px,4vw,38px)}
.page-head p{font-size:1.05rem;color:var(--ink-soft)}
.dashboard-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:26px}
.player-frame{position:relative;overflow:hidden;border-radius:22px;background:#090807;aspect-ratio:16/9;box-shadow:0 24px 70px rgba(0,0,0,.18)}
.player-frame iframe{width:100%;height:100%;border:0}
.watermark{position:absolute;z-index:2;top:12%;left:8%;color:rgba(255,255,255,.22);font-size:clamp(12px,1.8vw,18px);pointer-events:none;text-shadow:0 1px 4px rgba(0,0,0,.36);animation:watermark-move 45s linear infinite}
@keyframes watermark-move{0%{transform:translate(0,0)}25%{transform:translate(55vw,12vh)}50%{transform:translate(26vw,38vh)}75%{transform:translate(4vw,25vh)}100%{transform:translate(0,0)}}
.footer{
  position:relative;z-index:2;
  margin-top:clamp(34px,6vw,70px);padding:clamp(38px,6vw,72px) 0 26px;
  border-top:1px solid rgba(234,223,206,.9);
  background:var(--cream-2);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;align-items:start}
.footer-logo{width:140px;height:auto;display:block}
.footer-note{max-width:34ch;margin-top:1rem}
.footer h4{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-ink);margin:0 0 .9rem;font-weight:800}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:.55rem}
.footer a{position:relative;color:var(--ink-soft);text-decoration:none;font-size:.9rem;transition:color .35s ease}
.footer a::after{
  content:"";position:absolute;left:0;right:0;bottom:-.18rem;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .35s ease;
}
.footer a:hover{color:var(--gold-ink)}
.footer a:hover::after{transform:scaleX(1)}
.colophon{margin-top:32px;padding-top:18px;border-top:1px solid rgba(184,135,37,.16);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:.8rem}
@media(max-width:900px){
  .grid-2,.auth-grid{grid-template-columns:1fr}
  .auth-copy{max-width:none}
  .dashboard-head{display:block}
}
@media(max-width:720px){
  .shell{width:min(100% - 28px,1160px)}
  .topbar{position:relative}
  .topbar-inner{align-items:flex-start;flex-direction:column;padding:6px 0}
  .brand-mark{height:34px}
  .brand-name{font-size:.78rem;letter-spacing:.14em}
  .nav{justify-content:flex-start;gap:.2rem}
  .nav a{min-height:34px;padding:0 .66rem;font-size:.78rem}
  .nav a::after{left:.66rem;right:.66rem}
  .nav-cta{display:none}
  .card{border-radius:22px}
  .footer-grid{grid-template-columns:1fr}
}