/* Halaman depan dataidn.com: obsidian + emas sampanye. Tanpa angka bisnis asli. */
:root{--bg:#0B0F19;--bg-2:#0E1320;--card:#111726;--border:#1E2433;--border-2:#2A3142;--cream:#F5F3EE;--text:#D9DCE3;--muted:#A7B0C0;--muted-2:#7B8597;--gold:#D4AF37;--gold-2:#E6C65C;--gold-soft:rgba(212,175,55,.12);
  --font:'Albert Sans',system-ui,-apple-system,'Segoe UI',sans-serif;--disp:'Bricolage Grotesque','Albert Sans',system-ui,sans-serif}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(900px 500px at 80% -10%,rgba(212,175,55,.14),transparent 60%),radial-gradient(700px 400px at -10% 20%,rgba(46,75,219,.12),transparent 60%);pointer-events:none;z-index:0}
.top,.hero,.features,.security,.foot{position:relative;z-index:1;max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px}
a{color:var(--gold-2)}
.disp{font-family:var(--disp);letter-spacing:-.02em;font-weight:600;color:var(--cream)}
.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:14px}
.lockup{display:inline-flex;align-items:center;gap:12px;text-decoration:none}
.wordmark{font-size:24px;color:var(--cream)}.wordmark-sm{font-size:18px}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:24px;padding-bottom:24px}
.topnav{display:flex;align-items:center;gap:22px}
.topnav a{color:var(--muted);text-decoration:none;font-weight:500;font-size:15px}
.topnav a:hover{color:var(--cream)}
.btn-gold,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 20px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;transition:transform .15s ease,background .15s ease}
.btn-gold{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#1A1407!important;box-shadow:0 8px 30px rgba(212,175,55,.25)}
.btn-gold:hover{transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--border-2);color:var(--cream)!important;background:rgba(255,255,255,.02)}
.btn-ghost:hover{background:rgba(255,255,255,.06)}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:center;padding-top:56px;padding-bottom:72px}
.hero h1{font-size:clamp(38px,5.4vw,64px);line-height:1.05}
.lede{font-size:18px;color:var(--muted);margin:22px 0 30px;max-width:560px}
.lede-sm{color:var(--muted);margin-top:10px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-points{list-style:none;margin:30px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px 24px;color:var(--muted);font-size:14px}
.hero-points li::before{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--gold);margin-right:10px;vertical-align:middle}
.hero-art{display:flex;justify-content:center}
.art-card{width:100%;max-width:520px;background:linear-gradient(180deg,#131A2B,#0F1522);border:1px solid var(--border-2);border-radius:20px;padding:22px;box-shadow:0 30px 80px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.04)}
.art-head{display:flex;gap:6px;margin-bottom:22px}
.art-dot{width:9px;height:9px;border-radius:50%;background:var(--border-2)}
.art-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:24px}
.art-kpis div{display:flex;flex-direction:column;gap:10px}
.art-label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.art-bar{display:block;height:8px;border-radius:999px;background:linear-gradient(90deg,var(--gold),rgba(212,175,55,.3))}
.w6{width:60%}.w7{width:70%}.w8{width:80%}.w9{width:90%}
.art-chart{width:100%;height:auto;display:block;border-top:1px solid var(--border)}
.section-head{max-width:640px;margin-bottom:34px}
.section-head h2{font-size:clamp(28px,3.6vw,40px)}
.features{padding-top:40px;padding-bottom:64px}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.feature-grid article{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;transition:border-color .15s ease,transform .15s ease}
.feature-grid article:hover{border-color:rgba(212,175,55,.45);transform:translateY(-2px)}
.feature-grid h3{font-family:var(--disp);font-size:19px;color:var(--cream);margin-bottom:8px;letter-spacing:-.01em}
.feature-grid p{color:var(--muted);font-size:15px}
.security{padding-top:24px;padding-bottom:72px}
.security-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.security-grid div{display:flex;flex-direction:column;gap:6px;padding:22px;border-radius:16px;background:var(--gold-soft);border:1px solid rgba(212,175,55,.2)}
.security-grid strong{color:var(--cream);font-size:16px}
.security-grid span{color:var(--muted);font-size:14px}
.foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:28px;padding-bottom:40px;border-top:1px solid var(--border);color:var(--muted-2);font-size:14px}
@media (max-width:860px){
  .hero{grid-template-columns:1fr;padding-top:28px;padding-bottom:48px}
  .hero-art{order:-1}
  .topnav a:not(.btn-gold){display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}