:root {
  --primary: #1e5f74;
  --primary-dark: #133a48;
  --bg: #f4f6f8;
  --card: #ffffff;
  --border: #e1e5ea;
  --text: #222c33;
  --muted: #6b7684;
  --danger: #c0392b;
  --success: #1e7e34;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, Segoe UI, Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); text-decoration: none; }
.container { max-width: 960px; margin: 24px auto; padding: 0 16px; }

.topnav { display: flex; justify-content: space-between; align-items: center; background: var(--primary-dark); color: #fff; padding: 12px 20px; flex-wrap: wrap; }
.topnav .brand a { color: #fff; font-weight: 700; font-size: 1.1rem; }
.topnav nav a { color: #dce8ec; margin-left: 14px; }
.topnav nav a:hover { color: #fff; }
.topnav .who { margin-left: 14px; color: #9fb7bf; font-size: .85rem; }

.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 32px; width: 360px; }
.auth-card h1 { font-size: 1.1rem; color: var(--primary); margin: 0 0 4px; }
.auth-card h2 { margin-top: 0; }

label { display: block; margin-bottom: 14px; font-size: .9rem; color: var(--muted); }
input, select { width: 100%; padding: 9px 10px; margin-top: 4px; border: 1px solid var(--border); border-radius: 6px; font-size: .95rem; }
button { cursor: pointer; }
button[type=submit], .button { background: var(--primary); color: #fff; border: none; padding: 10px 18px; border-radius: 6px; font-size: .95rem; }
button[type=submit]:hover, .button:hover { background: var(--primary-dark); }
.link-btn { background: none; border: none; color: var(--primary); padding: 0; font-size: .85rem; }
.link-btn.danger { color: var(--danger); }

.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; font-size: .9rem; }
.alert-error { background: #fdecea; color: var(--danger); border: 1px solid #f5c6cb; }
.alert-success { background: #e9f7ef; color: var(--success); border: 1px solid #c3e6cb; }
.alert-info { background: #eaf3fb; color: #1e5f74; border: 1px solid #cfe4f0; }

.row { display: flex; gap: 14px; }
.row > label, .row > input { flex: 1; }
.row.wrap { flex-wrap: wrap; align-items: flex-end; }
.small-input { width: 160px; display: inline-block; }
.inline-form { display: flex; gap: 6px; align-items: center; }

.table { width: 100%; border-collapse: collapse; background: var(--card); margin-top: 12px; }
.table th, .table td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: .9rem; }
.table th { background: #f0f2f4; color: var(--muted); font-weight: 600; }

.badge { background: #eef1f3; padding: 2px 8px; border-radius: 10px; font-size: .78rem; }
.badge-confirmed { background: #e9f7ef; color: var(--success); }
.badge-cancelled { background: #fdecea; color: var(--danger); }

.cal-header { display: flex; justify-content: space-between; align-items: center; }
.hall-filter { margin: 8px 0 16px; }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-dow { font-size: .8rem; color: var(--muted); text-align: center; padding: 4px; }
.cal-cell { background: var(--card); border: 1px solid var(--border); border-radius: 6px; min-height: 90px; padding: 4px; font-size: .78rem; }
.cal-cell.empty { background: transparent; border: none; }
.cal-cell.today { border-color: var(--primary); }
.cal-daynum { font-weight: 600; margin-bottom: 4px; }
.cal-event { background: #eaf3fb; border-left: 3px solid var(--primary); padding: 2px 4px; margin-bottom: 2px; border-radius: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cal-event small { display: block; color: var(--muted); }

.availability { margin: 8px 0; font-size: .88rem; padding: 8px; border-radius: 6px; display: none; }
.availability.ok { display: block; background: #e9f7ef; color: var(--success); }
.availability.bad { display: block; background: #fdecea; color: var(--danger); }
.muted { color: var(--muted); font-size: .85rem; }