/**
 * KULTURE Availability Portal v3.0
 * Component Styles - Reusable UI Components
 */

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 10px 20px;
  font-size: var(--font-sm);
  font-weight: var(--font-medium);
  line-height: 1;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

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

/* Primary Button - KULTURE Brand Color */
.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-color: var(--color-primary);
}

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

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

/* Secondary Button */
.btn--secondary {
  background-color: var(--color-btn-secondary-bg);
  color: var(--color-text);
  border-color: var(--color-border);
}

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

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

.btn--success:hover:not(:disabled) {
  filter: brightness(1.1);
}

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

.btn--danger:hover:not(:disabled) {
  filter: brightness(1.1);
}

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

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

/* Icon Button */
.btn--icon {
  padding: 8px;
  border-radius: var(--radius);
}

/* Button Sizes */
.btn--sm {
  padding: 6px 12px;
  font-size: var(--font-xs);
}

.btn--lg {
  padding: 14px 28px;
  font-size: var(--font-base);
}

.btn--full {
  width: 100%;
}

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

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast);
}

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

.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing);
  border-bottom: 1px solid var(--color-border-light);
}

.card__title {
  font-size: var(--font-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0;
}

.card__body {
  color: var(--color-text-secondary);
}

.card__footer {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing);
  border-top: 1px solid var(--color-border-light);
}

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

.form-group {
  margin-bottom: var(--spacing-md);
}

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

.form-control {
  width: 100%;
  padding: 10px 12px;
  font-size: var(--font-sm);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
}

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

.form-control::placeholder {
  color: var(--color-text-light);
}

.form-control:disabled {
  background-color: var(--color-border-light);
  cursor: not-allowed;
}

.form-error {
  margin-top: var(--spacing-xs);
  font-size: var(--font-xs);
  color: var(--color-error);
}

.form-hint {
  margin-top: var(--spacing-xs);
  font-size: var(--font-xs);
  color: var(--color-text-tertiary);
}

/* Select */
select.form-control {
  appearance: none;
  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 8px center;
  background-repeat: no-repeat;
  background-size: 20px;
  padding-right: 36px;
}

/* Textarea */
textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

/* Checkbox & Radio */
.checkbox-label,
.radio-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  user-select: none;
}

input[type="checkbox"],
input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

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

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: var(--font-xs);
  font-weight: var(--font-medium);
  line-height: 1;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

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

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

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

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

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

/* ============================================================================
   ALERTS
   ============================================================================ */

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

.alert--success {
  background-color: var(--color-success-light);
  border-color: var(--color-success);
  color: var(--color-success);
}

.alert--error {
  background-color: var(--color-error-light);
  border-color: var(--color-error);
  color: var(--color-error);
}

.alert--warning {
  background-color: var(--color-warning-light);
  border-color: var(--color-warning);
  color: var(--color-warning);
}

.alert--info {
  background-color: var(--color-info-light);
  border-color: var(--color-info);
  color: var(--color-info);
}

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

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  animation: fadeIn var(--transition) ease;
}

.modal {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: slideInUp var(--transition) ease;
}

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

.modal__title {
  font-size: var(--font-xl);
  font-weight: var(--font-semibold);
  margin: 0;
}

.modal__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.modal__close:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-text);
}

.modal__body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  flex: 1;
}

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

/* ============================================================================
   DROPDOWNS
   ============================================================================ */

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

.dropdown__menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--spacing-xs);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  z-index: var(--z-dropdown);
  animation: slideInDown var(--transition) ease;
}

.dropdown__item {
  padding: var(--spacing) var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing);
  color: var(--color-text);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.dropdown__item:hover {
  background-color: var(--color-surface-hover);
}

.dropdown__item:first-child {
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
}

.dropdown__item:last-child {
  border-bottom-left-radius: var(--radius);
  border-bottom-right-radius: var(--radius);
}

.dropdown__divider {
  height: 1px;
  background-color: var(--color-border-light);
  margin: var(--spacing-xs) 0;
}

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

.tooltip {
  position: relative;
}

.tooltip__content {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing);
  background-color: var(--color-text);
  color: white;
  font-size: var(--font-xs);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  z-index: var(--z-tooltip);
}

.tooltip:hover .tooltip__content {
  opacity: 1;
}

/* ============================================================================
   LOADING SPINNER
   ============================================================================ */

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

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

/* ============================================================================
   EMPTY STATE
   ============================================================================ */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
}

.empty-state__icon {
  width: 64px;
  height: 64px;
  color: var(--color-text-lighter);
  margin-bottom: var(--spacing);
}

.empty-state__title {
  font-size: var(--font-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.empty-state__text {
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-lg);
}

/* ============================================================================
   TOAST NOTIFICATIONS
   ============================================================================ */

.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--spacing);
}

.toast {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing);
  animation: slideInDown var(--transition) ease;
}

.toast--success {
  border-left: 4px solid var(--color-success);
}

.toast--error {
  border-left: 4px solid var(--color-error);
}

.toast--warning {
  border-left: 4px solid var(--color-warning);
}

.toast--info {
  border-left: 4px solid var(--color-info);
}

.toast__icon {
  flex-shrink: 0;
}

.toast__content {
  flex: 1;
}

.toast__title {
  font-weight: var(--font-semibold);
  margin-bottom: var(--spacing-xs);
}

.toast__close {
  flex-shrink: 0;
  color: var(--color-text-secondary);
  cursor: pointer;
}

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