:root{--bg:#0f172a;--card:#0b1220;--muted:#94a3b8;--accent:#06b6d4;--white:#ecfeff}
*{box-sizing:border-box}
html,body{height:100%}
.body-fix-note{}
.wrap{width:100%;max-width:1100px;margin:0 auto;padding:28px}
/* body background fixed to avoid color banding at the bottom when scrolling */
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial;margin:0;min-height:100vh;display:flex;align-items:flex-start;justify-content:center;padding:36px 12px 24px;background-color:var(--bg);background:linear-gradient(180deg,#071029 0%, #021120 100%);background-attachment:fixed;color:var(--white);overflow-x:hidden;overflow-y:auto}
.header{display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:12px}
.logo .mark{width:44px;height:44px;background:linear-gradient(135deg,#06b6d4,#60a5fa);border-radius:8px;display:inline-block}
h1{margin:0;font-size:20px}
.subtitle{color:var(--muted);font-size:13px;margin-top:6px}
.layout{display:grid;grid-template-columns:270px 1fr;gap:20px;margin-top:22px}
.panel{background:rgba(255,255,255,0.04);padding:18px;border-radius:12px;margin:16px 0}
nav ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
nav a{color:var(--white);text-decoration:none;padding:8px 10px;border-radius:8px;display:block}
pre{background:#001018;padding:14px;border-radius:8px;color:#cfeefb;overflow:auto;font-size:13px;white-space:pre-wrap;word-break:break-word}
.muted{color:var(--muted)}
.copy{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:#064e64;color:#e6fffb;border-radius:8px;border:none;cursor:pointer;font-size:13px;font-weight:600;box-shadow:0 6px 18px rgba(6,78,100,0.08);transition:transform .12s ease,box-shadow .12s ease,opacity .12s}
.copy::before{display:none}
.copy:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(6,78,100,0.12)}
.copy:active{transform:translateY(-1px)}
.copy:focus{outline:2px solid rgba(6,78,100,0.18);outline-offset:3px}
.badge{display:inline-block;background:#052f3a;padding:6px 8px;border-radius:8px;color:#a5f3fc;font-size:12px}
footer{margin-top:18px;color:var(--muted);font-size:13px}
@media (max-width:880px){.layout{grid-template-columns:1fr}.logo .mark{display:none}}