:root{--bg:#071226;--card:#0b1322;--fg:#e6eef9;--muted:#9fb6d9;--accent:#7dd3fc;--accent2:#8b5cf6;--border:#122033}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--fg);line-height:1.6}
.container{max-width:1180px;margin:0 auto;padding:28px}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:48px;height:48;border-radius:10px;background:linear-gradient(135deg,var(--accent2),var(--accent));display:grid;place-items:center;font-weight:800;color:#031124}
nav a{margin:0 10px;color:var(--muted);text-decoration:none;font-weight:600}
nav a:hover{color:var(--fg)}
.hero{padding:40px 0}
h1{font-size:34px;margin:.2rem 0}
.lead{color:var(--muted);max-width:900px}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);border:1px solid var(--border);border-radius:12px;padding:18px;margin:14px 0}
.grid{display:grid;gap:18px}
.two{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.three{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.btn{display:inline-block;padding:10px 14px;border-radius:8px;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#031124;font-weight:700;text-decoration:none;border:none;cursor:pointer}
.footer{border-top:1px solid var(--border);margin-top:36px;padding-top:18px;color:var(--muted);font-size:13px}
.small{font-size:13px;color:var(--muted)}
.kv{display:flex;gap:12px;flex-wrap:wrap}
.kv .item{background:#071a2a;padding:8px 12px;border-radius:8px;color:var(--muted)}
.input{padding:10px;border-radius:8px;border:1px solid var(--border);width:100%}
.code{background:#021323;padding:12px;border-radius:8px;overflow:auto;font-family:monospace;font-size:13px;color:#9fe7ff}
@media(max-width:800px){.header-row{flex-direction:column;align-items:flex-start}h1{font-size:22px}nav a{margin:6px 8px}}