:root {
  color-scheme: light dark;
  --bg: light-dark(#f4f5f8, #0f1115);
  --surface: light-dark(#ffffff, #171a20);
  --surface-2: light-dark(#f8f9fb, #1c2027);
  --line: light-dark(#e6e8ee, #262b34);
  --line-strong: light-dark(#d5d9e2, #333a46);
  --text: light-dark(#171a21, #e9ecf2);
  --muted: light-dark(#5f677a, #a3abbd);
  --faint: light-dark(#656d80, #8993a8);
  --accent: light-dark(#3f5be6, #7b92ff);
  --accent-soft: light-dark(#e9edff, #232b4a);
  --accent-text: light-dark(#ffffff, #0d1020);
  --danger: light-dark(#d6364a, #ff7285);
  --danger-soft: light-dark(#fdecef, #35191f);
  --on-danger: light-dark(#ffffff, #2a0a10);
  --ok: light-dark(#1f9d63, #46c98a);
  --mark: light-dark(#ffe27a, #7d6a14);
  --shadow-color: light-dark(rgb(20 24 40 / .14), rgb(0 0 0 / .5));
  --shadow: 0 8px 28px var(--shadow-color);
  --avatar-l: 30%;
  --radius: 10px;
}
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { height: 100dvh; background: var(--bg); color: var(--text); font: 14px/1.45 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
button, input, select, textarea { font: inherit; color: inherit; }
svg { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
::placeholder { color: var(--faint); opacity: 1; }
mark { background: var(--mark); color: inherit; border-radius: 3px; padding: 0 1px; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.hidden { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: 8px; padding: 6px 12px; cursor: pointer; text-decoration: none; color: var(--text); }
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .6; cursor: progress; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.danger.solid { background: var(--danger); border-color: var(--danger); color: var(--on-danger); }
.icon-btn { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 8px; border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.icon-btn.active { background: var(--accent-soft); color: var(--accent); }
.icon-btn.danger:hover { background: var(--danger-soft); color: var(--danger); }

.logo { display: block; width: 32px; height: 32px; border-radius: 9px; object-fit: cover; flex: none; }

@media (pointer: coarse) {
  .icon-btn { width: 44px; height: 44px; }
  .btn { min-height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}