:root {
  color-scheme: dark;
  --bg: #0e0c12; --card: #16131b; --raised: #1f1a26; --input: #0f0c13;
  --fg: #f1eaf4; --fg-2: #cfc5d8; --muted: #9a90a6; --line: #2a2431;
  --accent: #ff7a59; --accent-2: #ffb547; --accent-ink: #1d0f12;
  --err: #ff5d6c; --ok: #4fd69c;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
a:hover { color: var(--accent-2); }
code { padding: 1px 6px; background: var(--raised); border-radius: 5px; font-size: .92em; overflow-wrap: anywhere; }
pre { margin: 10px 0; padding: 12px 14px; background: var(--input); border: 1px solid var(--line); border-radius: 8px; overflow-x: auto; }
pre code { padding: 0; background: none; }

.top { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; max-width: 880px; margin: 0 auto; padding: 18px 16px; }
.brand { display: flex; align-items: center; gap: 8px; color: var(--fg); font-weight: 700; font-size: 17px; text-decoration: none; }
.brand:hover { color: var(--fg); }
.top nav { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: 8px 18px; margin-left: auto; font-size: 14px; }
.top nav a { color: var(--fg-2); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--accent); }
.logo { display: inline-block; vertical-align: -5px; }

.lang-switch { display: inline-flex; border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.lang-switch button { margin: 0; padding: 3px 9px; font-size: 12px; font-weight: 600; color: var(--muted); background: transparent; border-radius: 0; }
.lang-switch button[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); }

.card { max-width: 560px; margin: 12px auto 48px; padding: 32px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
.card.wide { max-width: 880px; }
h1 { margin: 0 0 6px; font-size: 26px; }
h2 { font-size: 18px; margin: 30px 0 8px; }
h3 { font-size: 15px; margin: 20px 0 6px; color: var(--accent-2); }
.muted { color: var(--muted); }
label { display: block; margin: 10px 0; font-size: 13px; color: var(--muted); }
input { display: block; width: 100%; margin-top: 4px; padding: 9px 11px; font: inherit; color: var(--fg); background: var(--input); border: 1px solid var(--line); border-radius: 8px; }
input:focus { outline: none; border-color: var(--accent); }
button { margin-top: 8px; padding: 9px 16px; font: inherit; font-weight: 600; color: var(--accent-ink); background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: 0; border-radius: 8px; cursor: pointer; }
button.secondary { background: transparent; color: var(--err); margin: 0; padding: 4px 8px; }
.row { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; }
.row label { flex: 1; min-width: 120px; }
.row button { margin: 0 0 10px; }
.row + .msg { margin: 0; }
.msg { min-height: 1.5em; }
.msg.err { color: var(--err); }
.msg.ok { color: var(--ok); }
table { width: 100%; border-collapse: collapse; margin-top: 12px; }
td, th { text-align: left; padding: 6px 4px; border-bottom: 1px solid var(--line); font-size: 14px; vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.table-wrap { overflow-x: auto; }
.foot { margin-top: 28px; font-size: 13px; color: var(--muted); }
.toc { display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0; margin: 14px 0 0; list-style: none; font-size: 14px; }
.note { padding: 10px 14px; border-left: 3px solid var(--accent-2); background: var(--raised); border-radius: 0 8px 8px 0; color: var(--fg-2); }

@media (max-width: 600px) {
  .card { margin: 4px 0 24px; padding: 20px 16px; border-radius: 0; border-left: 0; border-right: 0; }
  .top nav { gap: 12px; }
}