/* UCN Telehealth - Components */
/* Clean, sharp edges - sterile medical aesthetic */

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-family);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1.5;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: 0; /* Sharp edges */
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Primary Button - Solid Blue */
.btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

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

.btn-primary:active:not(:disabled) {
  background-color: var(--blue-700);
}

/* Secondary Button - Outlined */
.btn-secondary {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--primary);
  color: var(--white);
}

/* Ghost Button - Minimal */
.btn-ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--primary);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--primary-light);
}

/* White Button (for dark backgrounds) */
.btn-white {
  background-color: var(--white);
  border-color: var(--white);
  color: var(--primary);
}

.btn-white:hover:not(:disabled) {
  background-color: var(--gray-100);
  border-color: var(--gray-100);
}

/* Danger Button */
.btn-danger {
  background-color: var(--danger);
  border-color: var(--danger);
  color: var(--white);
}

.btn-danger:hover:not(:disabled) {
  background-color: #c82333;
  border-color: #c82333;
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
}

/* Full Width Button */
.btn-block {
  width: 100%;
}

/* Icon Button */
.btn-icon {
  padding: var(--space-3);
  width: 44px;
  height: 44px;
}

/* ========================================
   CARDS
   ======================================== */
.card {
  background-color: var(--white);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-elevated {
  box-shadow: var(--shadow-md);
}

.card-hover {
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card-hover:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-light);
  background-color: var(--gray-50);
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-light);
  background-color: var(--gray-50);
}

/* Blue accent card */
.card-blue {
  border-left: 4px solid var(--primary);
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-primary);
}

.form-label-required::after {
  content: ' *';
  color: var(--danger);
}

.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-family);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--white);
  border: 2px solid var(--border-color);
  border-radius: 0; /* Sharp edges */
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--blue-100);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--gray-100);
  cursor: not-allowed;
}

/* Input with icon */
.form-input-wrapper {
  position: relative;
}

.form-input-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.form-input-wrapper .form-input {
  padding-left: var(--space-10);
}

/* Textarea */
.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23495057' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.form-check-input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 2px solid var(--border-color);
  background-color: var(--white);
  cursor: pointer;
  appearance: none;
  flex-shrink: 0;
}

.form-check-input[type="radio"] {
  border-radius: 50%;
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

.form-check-input[type="checkbox"]:checked {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 14px;
}

.form-check-input[type="radio"]:checked {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10'%3E%3Ccircle cx='5' cy='5' r='5' fill='white'/%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
}

.form-check-label {
  font-size: var(--text-base);
  color: var(--text-primary);
  cursor: pointer;
}

/* Form validation states */
.form-input-error {
  border-color: var(--danger);
}

.form-input-error:focus {
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

.form-error-message {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--danger);
}

.form-help-text {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ========================================
   BADGES
   ======================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-blue {
  background-color: var(--primary-light);
  color: var(--primary);
}

.badge-green {
  background-color: #d4edda;
  color: #155724;
}

.badge-yellow {
  background-color: #fff3cd;
  color: #856404;
}

.badge-red {
  background-color: #f8d7da;
  color: #721c24;
}

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

/* ========================================
   ALERTS
   ======================================== */
.alert {
  padding: var(--space-4) var(--space-5);
  border-left: 4px solid;
  margin-bottom: var(--space-4);
}

.alert-info {
  background-color: var(--blue-50);
  border-color: var(--primary);
  color: var(--blue-800);
}

.alert-success {
  background-color: #d4edda;
  border-color: var(--success);
  color: #155724;
}

.alert-warning {
  background-color: #fff3cd;
  border-color: var(--warning);
  color: #856404;
}

.alert-danger {
  background-color: #f8d7da;
  border-color: var(--danger);
  color: #721c24;
}

/* ========================================
   TABLES
   ======================================== */
.table-wrapper {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--white);
}

.table th,
.table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.table th {
  font-weight: var(--font-semibold);
  color: var(--text-secondary);
  background-color: var(--gray-50);
  text-transform: uppercase;
  font-size: var(--text-xs);
  letter-spacing: 0.5px;
}

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

/* ========================================
   AVATARS
   ======================================== */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: var(--font-semibold);
  overflow: hidden;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-sm { width: 32px; height: 32px; font-size: var(--text-sm); }
.avatar-md { width: 40px; height: 40px; font-size: var(--text-base); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-lg); }
.avatar-xl { width: 80px; height: 80px; font-size: var(--text-2xl); }

/* ========================================
   DIVIDERS
   ======================================== */
.divider {
  height: 1px;
  background-color: var(--border-light);
  margin: var(--space-6) 0;
}

.divider-vertical {
  width: 1px;
  height: 100%;
  background-color: var(--border-light);
}

/* ========================================
   LOADING SPINNER
   ======================================== */
.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  animation: spin 0.8s linear infinite;
}

.spinner-sm { width: 16px; height: 16px; border-width: 2px; }
.spinner-lg { width: 40px; height: 40px; border-width: 4px; }

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

/* ========================================
   DROPDOWN
   ======================================== */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  background-color: var(--white);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

.dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--gray-50);
}

.dropdown-divider {
  height: 1px;
  background-color: var(--border-light);
  margin: var(--space-2) 0;
}

/* ========================================
   MODAL
   ======================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: var(--z-modal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  background-color: var(--white);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-light);
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-light);
  background-color: var(--gray-50);
}

/* ========================================
   TOAST / NOTIFICATIONS
   ======================================== */
.toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-toast);
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: var(--white);
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-3);
  max-width: 400px;
  animation: toast-in 0.3s ease;
}

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

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

/* ========================================
   EMPTY STATE
   ======================================== */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.empty-state-icon {
  font-size: 48px;
  color: var(--gray-400);
  margin-bottom: var(--space-4);
}

.empty-state-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.empty-state-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
}