:root { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }
body { margin: 0; background: #0b1020; color: #e6e8ef; }
a { color: #8bd3ff; text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 980px; margin: 0 auto; padding: 24px; }
.card { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: 14px; padding: 16px; margin: 14px 0; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 800px){ .row { grid-template-columns: 1fr; } }
h1 { margin: 0 0 6px 0; font-size: 26px; }
h2 { margin: 0 0 10px 0; font-size: 18px; opacity: 0.95; }
small, .muted { opacity: 0.75; }
kbd { background: rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.15); padding: 2px 6px; border-radius: 7px; }
input, button, textarea { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.15); background: rgba(0,0,0,0.25); color: #e6e8ef; }
button { cursor: pointer; font-weight: 600; }
button:hover { background: rgba(255,255,255,0.12); }
pre { overflow: auto; padding: 12px; border-radius: 12px; background: rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.12); }
footer { margin-top: 18px; opacity: 0.75; }