/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --success: #16a34a;
  --warning: #ea580c;
  --danger: #dc2626;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--gray-100);
  color: var(--gray-800);
  line-height: 1.5;
}

/* Utility classes */
.hidden { display: none !important; }
.admin-only, .super-admin-only { display: none; }
body.role-admin .admin-only { display: inline-block; }
body.role-super_admin .admin-only,
body.role-super_admin .super-admin-only { display: inline-block; }

/* Screens */
.screen {
  min-height: 100vh;
}

/* Login */
.login-container {
  max-width: 400px;
  margin: 100px auto;
  padding: 40px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  text-align: center;
}

.login-container h1 {
  color: var(--primary);
  margin-bottom: 8px;
}

.login-container .subtitle {
  color: var(--gray-500);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 16px;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

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

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

.btn-secondary {
  background: var(--gray-200);
  color: var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-300);
}

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

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

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* Error messages */
.error {
  color: var(--danger);
  font-size: 14px;
  margin-top: 12px;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: white;
  border-bottom: 1px solid var(--gray-200);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-left h1 {
  font-size: 20px;
  color: var(--primary);
}

#user-info {
  color: var(--gray-500);
  font-size: 14px;
}

nav {
  display: flex;
  gap: 8px;
}

.nav-btn {
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--gray-600);
  font-size: 14px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}

.nav-btn:hover {
  background: var(--gray-100);
}

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

#logout-btn {
  color: var(--danger);
}

/* Main content */
main {
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

.view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.view-header h2 {
  font-size: 24px;
  color: var(--gray-800);
}

.stats {
  display: flex;
  gap: 16px;
  color: var(--gray-500);
  font-size: 14px;
}

/* Calls grid */
.calls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.call-card {
  background: white;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  border-left: 4px solid var(--gray-300);
  transition: all 0.2s;
}

.call-card.status-parked {
  border-left-color: var(--gray-400);
}

.call-card.status-detecting {
  border-left-color: var(--primary);
}

.call-card.status-human_detected {
  border-left-color: var(--warning);
  animation: pulse 2s infinite;
}

.call-card.status-connecting {
  border-left-color: var(--success);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
  50% { box-shadow: 0 4px 12px rgba(234, 88, 12, 0.3); }
}

.call-card-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.call-number {
  font-weight: 600;
  font-size: 18px;
}

.call-status {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
}

.call-status.parked { background: var(--gray-200); color: var(--gray-600); }
.call-status.detecting { background: #dbeafe; color: var(--primary); }
.call-status.human_detected { background: #ffedd5; color: var(--warning); }
.call-status.connecting { background: #dcfce7; color: var(--success); }

.call-info {
  color: var(--gray-500);
  font-size: 14px;
  margin-bottom: 16px;
}

.call-info p {
  margin-bottom: 4px;
}

.call-duration {
  font-family: monospace;
  font-size: 16px;
  color: var(--gray-600);
}

.call-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--gray-200);
}

.call-transcription {
  margin-top: 12px;
  padding: 12px;
  background: var(--gray-50);
  border-radius: 4px;
  font-size: 13px;
  color: var(--gray-600);
  max-height: 100px;
  overflow-y: auto;
}

.empty-state {
  text-align: center;
  color: var(--gray-400);
  padding: 60px 20px;
  grid-column: 1 / -1;
}

/* Data tables */
.data-table {
  width: 100%;
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.data-table th {
  background: var(--gray-50);
  font-weight: 600;
  color: var(--gray-600);
  font-size: 13px;
  text-transform: uppercase;
}

.data-table tbody tr:hover {
  background: var(--gray-50);
}

/* Settings */
.settings-sections {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.settings-section {
  background: white;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.settings-section h3 {
  margin-bottom: 16px;
  color: var(--gray-700);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal {
  background: white;
  border-radius: 8px;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
  font-size: 18px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--gray-400);
  cursor: pointer;
}

#modal-content {
  padding: 20px;
}

#modal-content .form-group {
  margin-bottom: 16px;
}

#modal-content .btn {
  width: 100%;
  margin-top: 8px;
}

/* Toast notifications */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  background: var(--gray-800);
  color: white;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 1001;
  animation: slideIn 0.3s ease;
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); }

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Responsive */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 16px;
  }

  nav {
    flex-wrap: wrap;
    justify-content: center;
  }

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

  .view-header {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }
}