/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --red-primary: #ED1B2E;
  --red-dark: #C41424;
  --red-light: #FF4D5E;
  --white: #FFFFFF;
  --gray-light: #F5F5F5;
  --gray: #E0E0E0;
  --gray-dark: #666666;
  --black: #333333;
  --green: #28A745;
  --orange: #FFA500;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--black);
  background-color: var(--gray-light);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background-color: var(--red-primary);
  color: var(--white);
  padding: 20px 0;
  box-shadow: var(--shadow);
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
}

header .subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-top: 5px;
}

/* Main Content */
main {
  flex: 1;
  padding: 30px 0;
}

section {
  background: var(--white);
  border-radius: 8px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

h2 {
  color: var(--red-primary);
  margin-bottom: 15px;
  font-size: 1.5rem;
}

h3 {
  color: var(--black);
  margin-bottom: 15px;
  font-size: 1.25rem;
}

.info-link {
  margin-top: 15px;
}

.info-link a,
.back-link a {
  color: var(--red-primary);
  text-decoration: none;
}

.info-link a:hover,
.back-link a:hover {
  text-decoration: underline;
}

/* Legend */
.legend {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
}

.dot.green { background-color: var(--green); }
.dot.orange { background-color: var(--orange); }
.dot.red { background-color: var(--red-primary); }

/* Slots Grid */
.slots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.day-column {
  background: var(--gray-light);
  border-radius: 8px;
  padding: 15px;
}

.day-header {
  font-weight: 600;
  color: var(--red-primary);
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--red-primary);
}

.day-date {
  font-size: 0.85rem;
  color: var(--gray-dark);
}

.slot {
  padding: 12px;
  margin: 8px 0;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slot:hover:not(.full) {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.slot.available {
  background-color: var(--green);
  color: var(--white);
}

.slot.limited {
  background-color: var(--orange);
  color: var(--white);
}

.slot.full {
  background-color: var(--gray);
  color: var(--gray-dark);
  cursor: not-allowed;
}

.slot-time {
  font-weight: 600;
}

.slot-places {
  font-size: 0.85rem;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  color: var(--black);
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--gray);
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--red-primary);
}

.form-actions {
  display: flex;
  gap: 15px;
  margin-top: 25px;
}

/* Buttons */
.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  text-decoration: none;
  display: inline-block;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--red-primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--red-dark);
}

.btn-secondary {
  background-color: var(--gray);
  color: var(--black);
}

.btn-secondary:hover {
  background-color: #CCCCCC;
}

.btn-danger {
  background-color: var(--red-dark);
  color: var(--white);
}

.btn-danger:hover {
  background-color: #9E1020;
}

/* Confirmation Box */
.confirmation-box,
.success-box {
  text-align: center;
}

.confirmation-box h3,
.success-box h2 {
  color: var(--green);
  margin-bottom: 20px;
}

.confirmation-details {
  text-align: left;
  background: var(--gray-light);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.confirmation-details p {
  margin: 10px 0;
}

.annuleer-code-box {
  background: var(--red-light);
  color: var(--white);
  padding: 20px;
  border-radius: 8px;
  margin: 20px 0;
}

.annuleer-code {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin: 15px 0;
}

.code-warning {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* Detail Box (Annuleren page) */
.detail-box {
  background: var(--gray-light);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.detail-box p {
  margin: 10px 0;
}

.cancel-actions {
  display: flex;
  gap: 15px;
  justify-content: center;
}

/* Error Message */
.error-message {
  background-color: #FEE2E2;
  color: var(--red-dark);
  padding: 15px;
  border-radius: 6px;
  margin-top: 15px;
}

/* Admin Styles */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 20px;
}

.admin-actions {
  display: flex;
  gap: 10px;
}

.stats-container {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.stat-box {
  background: var(--gray-light);
  padding: 20px;
  border-radius: 8px;
  text-align: center;
  min-width: 150px;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--red-primary);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--gray-dark);
}

.stats-per-day {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.day-stat {
  background: var(--gray-light);
  padding: 10px 15px;
  border-radius: 6px;
  font-size: 0.9rem;
}

.day-stat strong {
  color: var(--red-primary);
}

/* Table */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}

th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--gray);
}

th {
  background-color: var(--red-primary);
  color: var(--white);
  font-weight: 500;
}

tbody tr:hover {
  background-color: var(--gray-light);
}

.action-btn {
  padding: 6px 12px;
  font-size: 0.85rem;
  margin-right: 5px;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: var(--white);
  padding: 30px;
  border-radius: 8px;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content h3 {
  color: var(--red-primary);
  margin-bottom: 20px;
}

.modal-actions {
  display: flex;
  gap: 15px;
  justify-content: flex-end;
  margin-top: 25px;
}

.delete-details {
  background: var(--gray-light);
  padding: 15px;
  border-radius: 6px;
  margin: 15px 0;
}

/* Selected Slot */
.selected-slot {
  background: var(--gray-light);
  padding: 10px 15px;
  border-radius: 6px;
  margin-bottom: 20px;
}

/* Footer */
footer {
  background-color: var(--black);
  color: var(--white);
  padding: 15px 0;
  text-align: center;
  font-size: 0.9rem;
}

/* Hidden class */
.hidden {
  display: none !important;
}

/* Loading */
.loading {
  text-align: center;
  color: var(--gray-dark);
  padding: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  header h1 {
    font-size: 1.5rem;
  }

  .slots-grid {
    grid-template-columns: 1fr;
  }

  .form-actions,
  .cancel-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .admin-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-actions {
    width: 100%;
    flex-direction: column;
  }

  table {
    font-size: 0.85rem;
  }

  th, td {
    padding: 8px;
  }
}