:root{--bg:#0b0f19;--card:#121a2a;--text:#e9eefc;--muted:#a6b3d1}
*{box-sizing:border-box}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:#000000;color:var(--text)}
.container{max-width:1400px;margin:0 auto;padding:16px;display:flex;flex-direction:column;align-items:center}
h1{margin:0 0 8px;font-size:28px;text-align:center}
h2{margin:0 0 12px;font-size:18px;text-align:center}
.muted{color:var(--muted);line-height:1.5}
.card{background:transparent;border:none;border-radius:16px;padding:12px;backdrop-filter:none;width:min(1400px, 100%)}
.long{display:block;width:100%;max-width:1400px;height:auto;border-radius:0;border:none;background:transparent;margin:0 auto}
.viewer{width:100%;height:min(70vh,720px);border-radius:12px;border:none;background:#000000}
.footer{padding-top:0;padding-bottom:36px}
code{color:#d8e7ff;background:rgba(106,166,255,.12);padding:2px 6px;border-radius:8px}
.hint{margin:0 0 12px;padding:10px 12px;border-radius:12px;border:1px solid rgba(255,155,155,.35);background:rgba(255,80,80,.08);color:#ffd2d2}