/* High-end but lightweight styling (no frameworks) */
:root{--bg:#0b0f14;--panel:#101826;--muted:#9fb0c0;--text:#e6edf3;--accent:#6ee7ff;--accent2:#a78bfa;--danger:#ff6b6b;--ok:#34d399;--border:#223044;--mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--sans:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif}
*{box-sizing:border-box} html,body{height:100%}
body{margin:0;font-family:var(--sans);background:radial-gradient(1200px 800px at 20% 10%, #14233a 0%, var(--bg) 55%);color:var(--text)}
a{color:var(--accent);text-decoration:none} a:hover{text-decoration:underline}
.container{max-width:980px;margin:0 auto;padding:24px}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;background:rgba(16,24,38,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);position:sticky;top:0}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.2px}
.badge{font-size:12px;padding:4px 10px;border:1px solid var(--border);border-radius:999px;color:var(--muted)}
.links{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.card{background:rgba(16,24,38,.78);border:1px solid var(--border);border-radius:14px;padding:18px;margin-top:18px}
.h1{font-size:28px;margin:0 0 6px 0}
.sub{color:var(--muted);margin:0 0 16px 0}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:860px){.grid{grid-template-columns:1fr}}
.input{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#0c1320;color:var(--text)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid var(--border);background:linear-gradient(135deg, rgba(110,231,255,.18), rgba(167,139,250,.12));color:var(--text);cursor:pointer;font-weight:650}
.btn:hover{border-color:#2f4460}
.kv{display:flex;gap:10px;flex-wrap:wrap}
.k{color:var(--muted)}
pre{font-family:var(--mono);background:#0c1320;border:1px solid var(--border);padding:12px;border-radius:12px;overflow:auto}
.footer{color:var(--muted);padding:18px 0;font-size:13px}
.warn{color:var(--danger)}
.ok{color:var(--ok)}