/**
 * ============================================================================
 * Country ISO API - Reusable Components
 * ============================================================================
 * Mobile-first component library for consistent UI across portal
 * All components use theme variables from theme.css
 * ============================================================================
 */

/* ============================================================================
 * BUTTONS
 * ============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0 var(--space-lg);
  height: var(--button-height);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

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

/* Button Variants */
.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-inverse);
  border-color: var(--primary-color);
}

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

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--text-inverse);
  border-color: var(--secondary-color);
}

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

.btn-success {
  background-color: var(--success);
  color: var(--text-inverse);
  border-color: var(--success);
}

.btn-success:hover:not(:disabled) {
  background-color: #059669;
  border-color: #059669;
}

.btn-danger {
  background-color: var(--danger);
  color: var(--text-inverse);
  border-color: var(--danger);
}

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
  border-color: #dc2626;
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

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

.btn-ghost {
  background-color: transparent;
  color: var(--text-primary);
  border-color: transparent;
}

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

/* Button Sizes */
.btn-sm {
  height: 2.25rem;
  padding: 0 var(--space-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  height: 3.5rem;
  padding: 0 var(--space-2xl);
  font-size: var(--font-size-lg);
}

.btn-block {
  width: 100%;
}

/* ============================================================================
 * CARDS
 * ============================================================================ */

.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

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

.card-footer {
  padding: var(--space-lg);
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0;
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

/* Card Hover Effect */
.card-hover {
  transition: all var(--transition-normal);
}

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

/* ============================================================================
 * FORMS
 * ============================================================================ */

.form-group {
  margin-bottom: var(--space-lg);
}

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

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

.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  height: var(--input-height);
  padding: 0 var(--space-md);
  font-size: var(--font-size-base);
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

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

.form-textarea {
  height: auto;
  min-height: 6rem;
  padding: var(--space-md);
  resize: vertical;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: var(--space-2xl);
}

.form-help {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

.form-error {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--danger);
  margin-top: var(--space-xs);
}

.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
  border-color: var(--danger);
}

.form-input.is-invalid:focus,
.form-select.is-invalid:focus,
.form-textarea.is-invalid:focus {
  box-shadow: 0 0 0 3px var(--danger-bg);
}

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

.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  margin: 0;
  cursor: pointer;
}

.form-check-label {
  font-size: var(--font-size-base);
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

/* ============================================================================
 * ALERTS & NOTIFICATIONS
 * ============================================================================ */

.alert {
  padding: var(--space-md) var(--space-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.alert-success {
  background-color: var(--success-bg);
  border-color: var(--success-border);
  color: #065f46;
}

.alert-warning {
  background-color: var(--warning-bg);
  border-color: var(--warning-border);
  color: #92400e;
}

.alert-danger {
  background-color: var(--danger-bg);
  border-color: var(--danger-border);
  color: #991b1b;
}

.alert-info {
  background-color: var(--info-bg);
  border-color: var(--info-border);
  color: #1e40af;
}

.alert-dismissible {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.alert-close {
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  line-height: 1;
  color: inherit;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.alert-close:hover {
  opacity: 1;
}

/* ============================================================================
 * BADGES
 * ============================================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

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

.badge-success {
  background-color: var(--success-bg);
  color: #065f46;
}

.badge-warning {
  background-color: var(--warning-bg);
  color: #92400e;
}

.badge-danger {
  background-color: var(--danger-bg);
  color: #991b1b;
}

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

/* ============================================================================
 * TABLES
 * ============================================================================ */

.table-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

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

.table thead {
  background-color: var(--bg-secondary);
}

.table th {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  white-space: nowrap;
}

.table tbody tr:hover {
  background-color: var(--bg-tertiary);
}

.table-striped tbody tr:nth-child(even) {
  background-color: var(--bg-secondary);
}

.table-responsive {
  display: block;
  width: 100%;
  overflow-x: auto;
}

/* ============================================================================
 * PROGRESS BARS
 * ============================================================================ */

.progress {
  width: 100%;
  height: 0.75rem;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--primary-color);
  transition: width var(--transition-normal);
}

.progress-bar-success {
  background-color: var(--success);
}

.progress-bar-warning {
  background-color: var(--warning);
}

.progress-bar-danger {
  background-color: var(--danger);
}

.progress-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

/* ============================================================================
 * MODALS
 * ============================================================================ */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-overlay);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.modal-backdrop.is-active {
  display: flex;
}

.modal {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn var(--transition-normal);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-2rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

.modal-body {
  padding: var(--space-lg);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-top: 1px solid var(--border-color);
}

/* ============================================================================
 * STATS WIDGETS
 * ============================================================================ */

.stat-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  line-height: var(--line-height-tight);
}

.stat-change {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-top: var(--space-xs);
}

.stat-change.positive {
  color: var(--success);
}

.stat-change.negative {
  color: var(--danger);
}

/* ============================================================================
 * API KEY DISPLAY
 * ============================================================================ */

.api-key-display {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

.api-key-value {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
}

.api-key-copy {
  flex-shrink: 0;
}

/* ============================================================================
 * LOADING SPINNERS
 * ============================================================================ */

.spinner {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.spinner-sm {
  width: 1rem;
  height: 1rem;
  border-width: 2px;
}

.spinner-lg {
  width: 3rem;
  height: 3rem;
  border-width: 4px;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-overlay);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
}

.loading-overlay.is-active {
  display: flex;
}

/* ============================================================================
 * TOOLTIPS
 * ============================================================================ */

.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip-text {
  visibility: hidden;
  position: absolute;
  z-index: var(--z-tooltip);
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-xs) var(--space-sm);
  background-color: var(--bg-dark);
  color: var(--text-inverse);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* ============================================================================
 * EMPTY STATES
 * ============================================================================ */

.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
}

.empty-state-icon {
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

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

.empty-state-description {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

/* ============================================================================
 * RESPONSIVE UTILITIES
 * ============================================================================ */

/* Hide/Show based on breakpoint */
.mobile-only {
  display: block;
}

.tablet-up {
  display: none;
}

@media (min-width: 768px) {
  .mobile-only {
    display: none;
  }

  .tablet-up {
    display: block;
  }
}