:root {
  --bg: #0b0b0f; --panel: #15151a; --panel-2: #1d1d24; --panel-3: #25252e;
  --border: rgba(255,255,255,.08); --border-2: rgba(255,255,255,.15);
  --text: #f2f2f5; --text-2: rgba(255,255,255,.64); --text-3: rgba(255,255,255,.38);
  --accent: #f0f0f4; --green: #35c06b; --amber: #ffb454; --block: #ff5a4d;
  --glow: #181820; --r: 16px; --r-sm: 11px; --r-xs: 8px; --maxw: 1080px;
}
:root.light {
  --bg: #f3f4f7; --panel: #ffffff; --panel-2: #eef0f3; --panel-3: #e4e6ea;
  --border: rgba(0,0,0,.10); --border-2: rgba(0,0,0,.20);
  --text: #16161b; --text-2: rgba(0,0,0,.60); --text-3: rgba(0,0,0,.40);
  --accent: #1d1d24; --green: #1f9d54; --amber: #b9761a; --block: #d83a2e; --glow: #ffffff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  background: radial-gradient(130% 90% at 50% -20%, var(--glow) 0%, var(--bg) 55%) fixed;
  color: var(--text); font-family: 'Segoe UI Variable','Segoe UI',-apple-system,system-ui,sans-serif;
  -webkit-font-smoothing: antialiased; min-height: 100vh; font-size: 14px; line-height: 1.55;
  transition: background .2s, color .2s;
}
a { color: inherit; text-decoration: none; }
code, .mono { font-family: ui-monospace, 'Cascadia Code', Consolas, monospace; }

.top { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 72%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.top-inner { max-width: var(--maxw); margin: 0 auto; padding: 13px 22px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: baseline; gap: 2px; font-weight: 700; font-size: 16px; letter-spacing: -.3px; }
.brand .d { color: var(--text-3); font-weight: 500; }
.top nav { display: flex; align-items: center; gap: 4px; }
.top nav a { color: var(--text-2); font-size: 13.5px; padding: 7px 11px; border-radius: 9px; transition: .15s; }
.top nav a:hover { color: var(--text); background: var(--panel); }
.top-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.theme-btn { display: inline-grid; place-items: center; width: 34px; height: 34px; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 999px; color: var(--text-2); cursor: pointer; transition: .15s; }
.theme-btn:hover { border-color: var(--border-2); color: var(--text); background: var(--panel-3); }
.icon-link { color: var(--text-3); display: inline-flex; transition: .15s; }
.icon-link:hover { color: var(--text); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--panel);
  border: 1px solid var(--border); color: var(--text); border-radius: var(--r-sm); padding: 0 20px; height: 46px;
  font: inherit; font-size: 14.5px; font-weight: 600; cursor: pointer; transition: .15s; white-space: nowrap; }
.btn:hover { border-color: var(--border-2); background: var(--panel-2); transform: translateY(-1px); }
.btn.primary { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.08); background: var(--accent); }
.btn.sm { height: 38px; font-size: 13px; padding: 0 14px; }
.btn[disabled] { opacity: .5; cursor: default; transform: none; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--r); padding: 20px; }

.b { display: inline-block; font-size: 11px; font-weight: 600; padding: 2px 9px; border-radius: 20px; white-space: nowrap; }
.b.ok { background: color-mix(in srgb, var(--green) 16%, transparent); color: var(--green); }
.b.part { background: color-mix(in srgb, var(--amber) 18%, transparent); color: var(--amber); }
.b.no { background: var(--panel-2); color: var(--text-3); }

footer { text-align: center; color: var(--text-3); font-size: 12px; padding: 46px 22px 40px; line-height: 1.8;
  border-top: 1px solid var(--border); margin-top: 60px; }
footer a { color: var(--text-2); }
.disc { max-width: 680px; margin: 0 auto 14px; color: var(--text-3); font-size: 11.5px; line-height: 1.7; }