:root{
  --bg:#071014;
  --bg-2:#0b1b22;
  --card:rgba(255,255,255,.065);
  --card-2:rgba(255,255,255,.095);
  --text:#f5fbff;
  --muted:#a8bbc6;
  --cyan:#22d3ee;
  --blue:#2563eb;
  --orange:#f97316;
  --yellow:#facc15;
  --line:rgba(255,255,255,.14);
  --shadow:0 24px 80px rgba(0,0,0,.38);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:
    radial-gradient(circle at 18% 12%, rgba(34,211,238,.22), transparent 34%),
    radial-gradient(circle at 82% 18%, rgba(249,115,22,.22), transparent 30%),
    linear-gradient(135deg,var(--bg),#05070a 65%,#130b07);
  color:var(--text);
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
.nav{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(20px,5vw,72px);
  backdrop-filter:blur(18px);
  background:rgba(7,16,20,.72);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}
.brand img{width:34px;height:34px}
.nav nav{display:flex;align-items:center;gap:22px;color:var(--muted);font-size:14px}
.nav a:hover{color:var(--text)}
#langBtn{border:1px solid var(--line);background:var(--card);color:var(--text);padding:8px 12px;border-radius:999px;cursor:pointer}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:96px clamp(20px,5vw,72px) 80px;min-height:calc(100vh - 74px)}
.eyebrow{color:var(--cyan);font-weight:800;text-transform:uppercase;letter-spacing:.18em;font-size:12px;margin:0 0 16px}
h1{font-size:clamp(44px,7vw,88px);line-height:.94;margin:0 0 24px;letter-spacing:-.07em;max-width:900px}
.lead{font-size:clamp(18px,2.2vw,24px);line-height:1.55;color:var(--muted);max-width:760px;margin:0 0 34px}
.actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);padding:13px 18px;border-radius:999px;background:var(--card);font-weight:800;color:var(--text)}
.btn.primary{border:0;background:linear-gradient(135deg,var(--cyan),var(--blue) 48%,var(--orange));box-shadow:0 16px 48px rgba(34,211,238,.18)}
.hero-card{position:relative;min-height:520px;border:1px solid var(--line);border-radius:36px;background:linear-gradient(145deg,rgba(255,255,255,.08),rgba(255,255,255,.03));display:grid;place-items:center;box-shadow:var(--shadow);overflow:hidden}
.hero-card:before{content:"";position:absolute;inset:-40%;background:conic-gradient(from 90deg,transparent,var(--cyan),transparent,var(--orange),transparent);animation:spin 18s linear infinite;opacity:.22}
.hero-card img{position:relative;width:min(78%,460px);filter:drop-shadow(0 24px 45px rgba(0,0,0,.45))}
.pulse{position:absolute;width:260px;height:260px;border-radius:50%;border:1px solid rgba(34,211,238,.28);animation:pulse 3.5s infinite}
section{padding:70px clamp(20px,5vw,72px)}
.grid{display:grid;gap:18px}.three{grid-template-columns:repeat(3,1fr)}.four{grid-template-columns:repeat(4,1fr)}
article,.principles p,.model-list div{border:1px solid var(--line);background:var(--card);border-radius:28px;padding:26px;box-shadow:0 18px 45px rgba(0,0,0,.18)}
article h2{margin:0 0 12px;font-size:24px}article p,.split p,.join p{color:var(--muted);line-height:1.7;margin:0}
.split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}.split h2,.principles h2,.join h2,.section-head h2{font-size:clamp(32px,4vw,54px);line-height:1;margin:0 0 20px;letter-spacing:-.05em}
.model-list{display:grid;gap:16px}.model-list div{display:flex;gap:18px;align-items:center}.model-list strong{color:var(--orange);font-size:24px}.model-list span{color:var(--text);line-height:1.5}
.principles p{font-weight:800;color:var(--text);text-align:center}
.communities{position:relative}
.section-head{max-width:850px;margin-bottom:30px}
.section-head p:not(.eyebrow){color:var(--muted);line-height:1.7;font-size:18px;margin:0}
.community-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:stretch}
.community-card{position:relative;display:flex;flex-direction:column;min-height:360px;border:1px solid var(--line);background:linear-gradient(145deg,rgba(255,255,255,.09),rgba(255,255,255,.04));border-radius:32px;padding:26px;box-shadow:var(--shadow);overflow:hidden;transition:transform .2s ease,border-color .2s ease,background .2s ease}
.community-card:before{content:"";position:absolute;inset:auto -20% -45% -20%;height:190px;background:radial-gradient(circle,rgba(34,211,238,.18),transparent 68%);pointer-events:none}
.community-card.featured:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.45);background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.055))}
.community-top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:28px}
.community-avatar{display:grid;place-items:center;width:64px;height:64px;border-radius:22px;background:linear-gradient(135deg,var(--cyan),var(--blue) 48%,var(--orange));color:#fff;font-size:22px;font-weight:900;letter-spacing:-.04em;box-shadow:0 18px 44px rgba(34,211,238,.18)}
.badge{display:inline-flex;align-items:center;border:1px solid rgba(34,211,238,.28);background:rgba(34,211,238,.1);color:#d7fbff;padding:8px 11px;border-radius:999px;font-size:12px;font-weight:800;white-space:nowrap}
.badge.muted{border-color:var(--line);background:var(--card);color:var(--muted)}
.community-card h3{margin:0 0 14px;font-size:clamp(28px,3vw,40px);letter-spacing:-.055em;line-height:1}
.community-card p{color:var(--muted);line-height:1.7;margin:0 0 22px;flex:1}
.community-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}
.community-meta span{border:1px solid var(--line);background:rgba(255,255,255,.045);color:var(--text);font-size:13px;font-weight:700;padding:8px 10px;border-radius:999px}
.community-link{position:relative;display:inline-flex;align-self:flex-start;align-items:center;gap:8px;color:#fff;font-weight:900;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:4px}
.community-link:after{content:"↗";font-size:14px;color:var(--cyan)}
.open-slot{border-style:dashed;background:rgba(255,255,255,.035)}
.open-slot .community-avatar{background:var(--card);border:1px solid var(--line);color:var(--muted);box-shadow:none}
.join{margin:40px clamp(20px,5vw,72px) 70px;border:1px solid var(--line);border-radius:36px;text-align:center;background:linear-gradient(135deg,rgba(34,211,238,.12),rgba(249,115,22,.12));box-shadow:var(--shadow)}
.join p{max-width:760px;margin:0 auto 28px}
footer{display:flex;justify-content:space-between;gap:20px;padding:28px clamp(20px,5vw,72px);border-top:1px solid var(--line);color:var(--muted)}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%{transform:scale(.85);opacity:.8}100%{transform:scale(1.45);opacity:0}}
@media(max-width:1100px){.community-grid{grid-template-columns:1fr 1fr}.open-slot{grid-column:1/-1}}
@media(max-width:900px){.hero,.split,.three,.four,.community-grid{grid-template-columns:1fr}.hero{padding-top:58px}.hero-card{min-height:360px}.nav{align-items:flex-start;gap:16px}.nav nav{gap:14px;flex-wrap:wrap;justify-content:flex-end}.nav nav a{display:inline-flex}.open-slot{grid-column:auto}footer{flex-direction:column}}
@media(max-width:560px){.nav{flex-direction:column}.nav nav{justify-content:flex-start}.hero-card{min-height:300px}.community-card{min-height:auto}.community-top{align-items:flex-start;flex-direction:column}.badge{white-space:normal}}