:root {
  --bg: #f7f7f8; --card: #ffffff; --text: #16181d; --muted: #5f6573; --line: #e3e5ea;
  --accent: #2563eb; --accent-text: #ffffff; --accent-soft: #e8efff; --danger: #b42318; --ok: #067647;
  --radius: 12px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1115; --card: #171a21; --text: #eef0f4; --muted: #a3a9b6; --line: #2a2f3a;
    --accent: #6d9bff; --accent-text: #0b1020; --accent-soft: #1d2740; --danger: #ff8a80; --ok: #6ee7b7; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.top { padding: 16px; border-bottom: 1px solid var(--line); background: var(--card); }
.brand { color: var(--text); text-decoration: none; font-weight: 700; }
main { max-width: 880px; margin: 24px auto; padding: 0 16px; }
.foot { max-width: 880px; margin: 0 auto 32px; padding: 0 16px; font-size: 13px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
h1 { font-size: 22px; margin: 0 0 4px; } h2 { font-size: 18px; margin: 0 0 12px; }
.muted { color: var(--muted); }
.types { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.type { display: block; text-decoration: none; color: var(--text); border-left: 4px solid var(--accent); }
.type:hover { border-color: var(--accent); box-shadow: 0 2px 10px rgba(0,0,0,.06); }
.cols { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .cols { grid-template-columns: 1.1fr 1fr; } }
.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; text-align: center; }
.cal .dow { font-size: 12px; color: var(--muted); padding: 4px 0; }
.cal button { border: 0; border-radius: 8px; padding: 10px 0; background: transparent; color: var(--muted); font: inherit; }
.cal button.open { background: var(--accent-soft); color: var(--accent); font-weight: 600; cursor: pointer; }
.cal button.sel { background: var(--accent); color: var(--accent-text); }
.cal button:disabled { cursor: default; opacity: .55; }
.slots > p, .slots > .alert { grid-column: 1 / -1; margin: 0; }
.slots { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); align-content: start; max-height: 360px; overflow: auto; }
.btn { white-space: nowrap; display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--accent); background: transparent; color: var(--accent);
  border-radius: 8px; padding: 9px 14px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn.primary { background: var(--accent); color: var(--accent-text); }
.btn.danger { border-color: var(--danger); color: var(--danger); }
.btn:disabled { opacity: .6; cursor: default; }
.icon { border: 1px solid var(--line); background: transparent; color: var(--text); border-radius: 8px; width: 36px; height: 36px; cursor: pointer; font-size: 18px; }
form label { display: block; margin: 10px 0 4px; font-weight: 600; font-size: 14px; }
input, textarea, select { width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); font: inherit; }
textarea { min-height: 80px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.alert { padding: 10px 12px; border-radius: 8px; margin: 10px 0; }
.alert.err { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); }
.alert.ok { background: color-mix(in srgb, var(--ok) 14%, transparent); color: var(--ok); }
.tz { margin-top: 12px; font-size: 14px; }
.big { font-size: 20px; font-weight: 700; }