:root {
  --bg: #101418; --panel: #1a2027; --text: #e8eaed; --muted: #9aa4af;
  --accent: #4f8f6b; --accent-text: #fff; --danger: #b3564f; --border: #2b333c;
  --pending: #b98f3e; --confirmed: #4f8f6b; --declined: #8a5450; --cancelled: #566069;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
       font: 16px/1.5 system-ui, -apple-system, sans-serif; }
.container { max-width: 960px; margin: 0 auto; padding: 24px 16px; }
.container.narrow { max-width: 560px; }
.center { text-align: center; }
h1, h2, h3 { line-height: 1.2; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 0.9em; }
.error { color: #e08983; }
.card { background: var(--panel); border: 1px solid var(--border);
        border-radius: 10px; padding: 20px; margin: 16px 0; }
label { display: block; margin: 12px 0; }
input, select, textarea { width: 100%; padding: 8px 10px; margin-top: 4px;
  background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; font: inherit; }
button, .btn { display: inline-block; padding: 8px 14px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--accent); color: var(--accent-text);
  font: inherit; cursor: pointer; text-decoration: none; }
button.danger { background: var(--danger); }
.inline { display: inline; }
.inline input { width: auto; }
.topnav { display: flex; gap: 16px; align-items: center; padding: 12px 16px;
  background: var(--panel); border-bottom: 1px solid var(--border); }
.topnav a { color: var(--muted); text-decoration: none; }
.topnav a.on { color: var(--text); }
.topnav form { margin-left: auto; }
table { width: 100%; border-collapse: collapse; margin: 12px 0; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 0.85em; }
.badge { padding: 2px 10px; border-radius: 12px; font-size: 0.8em; color: #fff; }
.badge-pending { background: var(--pending); }
.badge-confirmed { background: var(--confirmed); }
.badge-declined { background: var(--declined); }
.badge-cancelled { background: var(--cancelled); }
.row-cancelled, .row-declined { opacity: 0.55; }
.toolbar { display: flex; gap: 10px; align-items: center; margin: 16px 0; }
.slots { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.slots button { background: var(--panel); color: var(--text); }
.slots button.on { background: var(--accent); color: var(--accent-text); }
.hp { position: absolute; left: -9999px; height: 1px; width: 1px; opacity: 0; }
.lang { float: right; display: flex; gap: 4px; }
.lang button { background: var(--panel); color: var(--muted); padding: 4px 10px; }
.lang button.on { background: var(--accent); color: var(--accent-text); }
.calgrid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.calhead { color: var(--muted); font-size: 0.8em; text-align: center; padding: 4px; }
.calcell { display: flex; flex-direction: column; align-items: center; gap: 2px;
  min-height: 64px; padding: 6px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); text-decoration: none; }
.calcell.dim { opacity: 0.35; }
.calcell.today { border-color: var(--accent); }
.calcell strong { color: var(--accent); }
.form-grid { display: grid; gap: 4px; }
.hours-grid { display: grid; gap: 4px; }
.hours-row { display: grid; grid-template-columns: 60px 100px 1fr 1fr; gap: 8px;
  align-items: center; margin: 6px 0; }
.dayname { text-transform: capitalize; color: var(--muted); }
.auth { display: flex; min-height: 100vh; align-items: center; justify-content: center; }
.auth-card { width: 360px; }
@media (max-width: 640px) {
  .topnav { flex-wrap: wrap; }
  .hours-row { grid-template-columns: 44px 90px 1fr 1fr; }
}