/* === Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --success: #16a34a;
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* === Guest Page === */
.lang-toggle {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 4px;
}

.lang-btn {
  padding: 6px 12px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
}

.lang-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.container {
  max-width: 400px;
  margin: 0 auto;
  padding: 60px 20px 40px;
  text-align: center;
}

.title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--muted);
  margin-bottom: 40px;
  font-size: 15px;
}

.label {
  display: block;
  font-weight: 600;
  margin-bottom: 16px;
  font-size: 15px;
}

.cabin-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.cabin-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px 32px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.2s;
}

.cabin-btn:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.cabin-btn.selected {
  border-color: var(--primary);
  background: #eff6ff;
}

.cabin-icon {
  font-size: 32px;
}

.back-btn {
  display: inline-block;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  margin-bottom: 20px;
}

.back-btn:hover {
  color: var(--text);
}

.code-input-container {
  margin: 20px 0;
}

.code-input {
  width: 180px;
  font-size: 32px;
  text-align: center;
  letter-spacing: 12px;
  padding: 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  font-family: 'SF Mono', Monaco, monospace;
}

.code-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.activate-btn {
  width: 100%;
  max-width: 180px;
  padding: 14px 24px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.activate-btn:hover:not(:disabled) {
  background: var(--primary-hover);
}

.activate-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Result */
.result {
  margin-top: 24px;
  padding: 20px;
  border-radius: var(--radius);
  text-align: left;
}

.result.success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.result.success h2 {
  color: var(--success);
  font-size: 18px;
  margin-bottom: 8px;
}

.result.success p {
  margin-top: 6px;
  font-size: 14px;
}

.result.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--danger);
  text-align: center;
}

/* Loading */
.loading {
  margin-top: 24px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.hidden {
  display: none !important;
}

/* === Admin Page === */
.admin-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.admin-header h1 {
  font-size: 24px;
}

.section {
  margin-bottom: 32px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section h2 {
  font-size: 18px;
  font-weight: 600;
}

/* Cabins grid */
.cabins-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.cabin-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.cabin-card h3 {
  margin-bottom: 8px;
}

.cabin-card.cabin-on {
  border-color: var(--success);
  background: #f0fdf4;
}

/* Status badges */
.status-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.status-badge.on, .status-badge.active {
  background: #dcfce7;
  color: var(--success);
}

.status-badge.off, .status-badge.completed {
  background: #f1f5f9;
  color: var(--muted);
}

.status-badge.cancelled {
  background: #fef2f2;
  color: var(--danger);
}

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

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th, .table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.table th {
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--muted);
}

.table code {
  font-family: 'SF Mono', Monaco, monospace;
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
}

.row-inactive {
  opacity: 0.5;
}

.actions {
  white-space: nowrap;
  display: flex;
  gap: 4px;
}

/* Forms */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

.form-card h3 {
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.form-group input,
.form-group select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.form-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}

/* Buttons */
.btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
}

.btn:hover {
  background: #f1f5f9;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

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

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}

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

.btn-small {
  padding: 4px 10px;
  font-size: 12px;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  min-width: 320px;
  max-width: 90vw;
}

.modal-content h3 {
  margin-bottom: 12px;
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

/* === Responsive === */
@media (max-width: 480px) {
  .container {
    padding: 40px 16px 32px;
  }

  .cabin-buttons {
    flex-direction: column;
  }

  .cabin-btn {
    flex-direction: row;
    padding: 16px 20px;
  }

  .admin-container {
    padding: 16px;
  }

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

  .table {
    font-size: 12px;
  }

  .table th, .table td {
    padding: 8px 6px;
  }
}