:root {
  --primary: #2c5282;
  --primary-dark: #1a365d;
  --bg: #f7fafc;
  --card-bg: #ffffff;
  --text: #1a202c;
  --muted: #718096;
  --border: #e2e8f0;
  --danger: #c53030;
  --success: #2f855a;
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

header.page-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 2rem 1rem;
  text-align: center;
}

header.page-header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
}

header.page-header p {
  margin: 0;
  opacity: 0.9;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

h2 { margin-top: 0; }

.day-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.day-pill {
  display: block;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  background: var(--bg);
}

.day-pill.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.slot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.6rem;
  margin: 1rem 0;
}

.slot {
  display: block;
  text-align: center;
  padding: 0.7rem 0.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  background: var(--bg);
  font-weight: 600;
}

.slot input { display: none; }

.slot .count {
  display: block;
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--muted);
}

.slot.full {
  opacity: 0.5;
  cursor: not-allowed;
  text-decoration: line-through;
}

.slot input:checked + .slot-label,
label.slot:has(input:checked) {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

label.slot:has(input:checked) .count {
  color: rgba(255,255,255,0.85);
}

form .field {
  margin-bottom: 1rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

input[type=text], input[type=email], input[type=tel], input[type=date], input[type=time], input[type=number], input[type=password], select {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
}

button, .btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.7rem 1.4rem;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

button:hover, .btn:hover { background: var(--primary-dark); }

.btn-danger { background: var(--danger); }

.alert {
  padding: 0.9rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.alert-error { background: #fed7d7; color: var(--danger); }
.alert-success { background: #c6f6d5; color: var(--success); }

.honeypot { position: absolute; left: -9999px; }

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}

.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.muted { color: var(--muted); font-size: 0.9rem; }