:root{
  --bg:#07111f;
  --card:rgba(255,255,255,.08);
  --card-strong:rgba(255,255,255,.12);
  --text:#eef6ff;
  --muted:#9fb0c6;
  --line:rgba(255,255,255,.14);
  --gold:#f8c76b;
  --cyan:#69e3ff;
  --pink:#d98cff;
  --green:#75f0bd;
  --shadow:0 24px 80px rgba(0,0,0,.35);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 12% 8%,rgba(105,227,255,.16),transparent 24rem),
    radial-gradient(circle at 90% 18%,rgba(217,140,255,.15),transparent 26rem),
    linear-gradient(145deg,#06101d,#0b1529 45%,#090d18);
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
.bg-orb{position:fixed;border-radius:999px;filter:blur(20px);pointer-events:none;opacity:.3;z-index:-1}
.orb-one{width:260px;height:260px;background:var(--cyan);left:-70px;top:150px}
.orb-two{width:260px;height:260px;background:var(--pink);right:-80px;top:360px}
.shell{width:min(1160px,calc(100% - 36px));margin-inline:auto}
.site-header{
  width:min(1200px,calc(100% - 28px));
  margin:14px auto 0;
  padding:12px 14px;
  border:1px solid var(--line);
  background:rgba(5,12,25,.78);
  backdrop-filter:blur(18px);
  border-radius:24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  position:sticky;top:12px;z-index:20;box-shadow:0 12px 40px rgba(0,0,0,.25)
}
.brand{display:flex;align-items:center;gap:12px;min-width:215px}
.brand-mark{display:grid;place-items:center;width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--gold),#ffecb0);color:#111827;font-weight:900;letter-spacing:-.04em;box-shadow:0 12px 30px rgba(248,199,107,.18)}
.brand strong{display:block;font-size:1rem;line-height:1.05}.brand small{display:block;color:var(--muted);font-size:.76rem;margin-top:3px}
nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
nav a{padding:10px 13px;border-radius:999px;color:#d9e6f7;font-size:.92rem;border:1px solid transparent}
nav a:hover,nav a.active{background:rgba(255,255,255,.1);border-color:var(--line)}
.upload-link{background:rgba(248,199,107,.14)!important;color:#ffe6a8!important;border-color:rgba(248,199,107,.28)!important}
.glass{background:linear-gradient(180deg,rgba(255,255,255,.105),rgba(255,255,255,.055));border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(18px)}
.hero{padding:76px 0 46px;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.eyebrow{margin:0 0 12px;text-transform:uppercase;letter-spacing:.16em;font-size:.74rem;font-weight:800;color:var(--gold)}
h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2.8rem,7vw,6.4rem);letter-spacing:-.075em;line-height:.88;margin-bottom:22px}h2{font-size:clamp(1.7rem,3vw,3rem);letter-spacing:-.04em;line-height:1.02;margin-bottom:14px}h3{font-size:1.24rem;letter-spacing:-.025em}.lead{font-size:1.18rem;color:#c9d8eb;line-height:1.72;max-width:650px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 18px;border-radius:999px;font-weight:800;border:1px solid var(--line);cursor:pointer;transition:.18s ease;font-size:.96rem}.btn.primary{background:linear-gradient(135deg,var(--gold),#fff1bd);color:#111827;border:0}.btn.ghost{background:rgba(255,255,255,.08)}.btn:hover{transform:translateY(-1px)}.btn.full{width:100%;text-align:center}.hero-panel{border-radius:var(--radius);padding:28px;min-height:310px;display:flex;flex-direction:column;justify-content:center}.panel-topline{font-weight:800;color:var(--muted);margin-bottom:18px}.structure-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;gap:8px;align-items:center;margin-bottom:24px}.structure-flow div{padding:14px 10px;border-radius:18px;background:rgba(255,255,255,.08);text-align:center;font-weight:900}.structure-flow span{color:var(--gold);font-weight:900}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stats-grid div{padding:16px;border-radius:18px;background:rgba(255,255,255,.07)}.stats-grid strong{display:block;font-size:1.8rem}.stats-grid span{font-size:.8rem;color:var(--muted)}
.section-block{padding:34px 0}.section-title{max-width:760px;margin-bottom:22px}.section-title p{color:var(--muted);line-height:1.7}.class-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.class-card{padding:22px;border-radius:24px;background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.045));border:1px solid var(--line);min-height:205px;display:flex;flex-direction:column;justify-content:space-between;transition:.2s ease}.class-card:hover{transform:translateY(-4px);border-color:rgba(248,199,107,.45);box-shadow:0 20px 60px rgba(0,0,0,.28)}.class-pill{display:inline-flex;align-self:flex-start;padding:7px 10px;border-radius:999px;background:rgba(105,227,255,.13);color:#aff3ff;font-size:.82rem;font-weight:800}.class-card p,.class-card small{color:var(--muted)}.two-col{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}.roadmap-card,.upload-card{border-radius:var(--radius);padding:28px}.track-list{display:grid;gap:14px;margin-top:18px}.track-list div{display:grid;grid-template-columns:48px 1fr;column-gap:12px;padding:16px;border-radius:20px;background:rgba(255,255,255,.06)}.track-list span{grid-row:span 2;display:grid;place-items:center;width:42px;height:42px;border-radius:15px;background:rgba(248,199,107,.16);color:#ffe1a0;font-weight:900}.track-list p{grid-column:2;color:var(--muted);margin:3px 0 0;line-height:1.55}.upload-card p{color:var(--muted);line-height:1.7}.page{padding:44px 0 70px}.page-hero{border-radius:var(--radius);padding:30px;margin-bottom:20px}.page-hero.compact h1{font-size:clamp(2.3rem,5vw,4.2rem);margin-bottom:12px}.page-hero p:last-child{color:var(--muted);line-height:1.65}.filters{border-radius:24px;padding:16px;display:grid;grid-template-columns:repeat(4,1fr) auto;gap:12px;align-items:end;margin-bottom:20px}label{display:grid;gap:8px;color:#dfeaff;font-weight:800;font-size:.9rem}input,select,textarea{width:100%;border:1px solid var(--line);background:rgba(4,10,20,.66);color:var(--text);border-radius:16px;padding:13px 14px;font:inherit;outline:none}textarea{resize:vertical}input:focus,select:focus,textarea:focus{border-color:rgba(248,199,107,.6);box-shadow:0 0 0 4px rgba(248,199,107,.08)}.empty-state{border-radius:var(--radius);padding:42px;text-align:center}.empty-state p{color:var(--muted);max-width:620px;margin:0 auto 20px;line-height:1.65}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.resource-card{border-radius:24px;padding:20px}.resource-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.resource-meta span{font-size:.75rem;font-weight:900;border-radius:999px;padding:6px 9px;background:rgba(255,255,255,.09);color:#dcedff}.resource-card h2{font-size:1.28rem;line-height:1.18}.resource-card p{color:var(--muted);line-height:1.55;min-height:44px}.resource-tags{display:flex;gap:7px;flex-wrap:wrap;margin:14px 0}.resource-tags span{padding:6px 9px;background:rgba(105,227,255,.09);border:1px solid rgba(105,227,255,.16);border-radius:999px;font-size:.75rem;color:#b9f5ff}.upload-layout{display:grid;grid-template-columns:1fr 340px;gap:18px}.upload-form{border-radius:var(--radius);padding:24px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.file-drop{margin-top:14px;padding:18px;border:1px dashed rgba(248,199,107,.5);border-radius:22px;background:rgba(248,199,107,.06)}.file-drop span{color:var(--muted);font-weight:600;font-size:.86rem}.help-card{border-radius:var(--radius);padding:24px;height:max-content}.help-card ul{padding-left:20px;color:var(--muted);line-height:1.75}.mini-note{margin-top:18px;padding:14px;border-radius:18px;background:rgba(248,199,107,.11);color:#ffe5a8}.alert{border-radius:20px;padding:16px 18px;margin-bottom:18px;font-weight:800}.alert.success{background:rgba(117,240,189,.13);border:1px solid rgba(117,240,189,.35);color:#c9ffe9}.alert.error{background:rgba(255,98,123,.13);border:1px solid rgba(255,98,123,.35);color:#ffd4dc}.site-footer{padding:28px 0 44px;display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:.92rem;border-top:1px solid var(--line);margin-top:24px}
code{background:rgba(255,255,255,.1);padding:.15em .45em;border-radius:.5em;color:#ffe1a0}
@media(max-width:900px){.hero,.two-col,.upload-layout{grid-template-columns:1fr}.class-grid,.resource-grid{grid-template-columns:repeat(2,1fr)}.filters{grid-template-columns:1fr 1fr}.site-header{align-items:flex-start;flex-direction:column}.structure-flow{grid-template-columns:1fr}.structure-flow span{display:none}}
@media(max-width:620px){.shell{width:min(100% - 22px,1160px)}.class-grid,.resource-grid,.filters,.form-grid,.stats-grid{grid-template-columns:1fr}.hero{padding-top:42px}h1{font-size:3rem}.site-footer{flex-direction:column}.brand{min-width:0}.page-hero,.upload-form,.help-card,.roadmap-card,.upload-card{padding:20px;border-radius:22px}}