/**
 * GST CS Components Styles
 * 재사용 가능한 UI 컴포넌트 스타일
 */

/* ========== Button Component ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: 1.5;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.btn-primary {
  background-color: var(--color-primary-600);
  color: white;
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-primary-50);
}

.btn-success {
  background-color: var(--color-success-600);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background-color: var(--color-success-700);
}

.btn-danger {
  background-color: var(--color-danger-600);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--color-danger-700);
}

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

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-gray-100);
  color: var(--color-text-primary);
}

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
}

.btn-lg {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
}

/* ========== Card Component ========== */
.card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

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

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

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

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

/* ========== Badge Component ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  line-height: 1;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-primary {
  background-color: var(--color-primary-100);
  color: var(--color-primary-700);
}

.badge-success {
  background-color: var(--color-success-100);
  color: var(--color-success-700);
}

.badge-warning {
  background-color: var(--color-warning-100);
  color: var(--color-warning-700);
}

.badge-danger {
  background-color: var(--color-danger-100);
  color: var(--color-danger-700);
}

.badge-gray {
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
}

/* ========== Chip Component (Dismissible) ========== */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  background-color: var(--color-primary-50);
  color: var(--color-primary-700);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-full);
}

.chip-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-200);
  color: var(--color-primary-700);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.chip-close:hover {
  background-color: var(--color-primary-300);
}

/* ========== Table Component ========== */
.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

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

.table thead {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
}

.table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  white-space: nowrap;
}

.table th.sortable {
  cursor: pointer;
  user-select: none;
}

.table th.sortable:hover {
  background-color: var(--color-gray-100);
}

.table td {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.table tbody tr {
  transition: background-color var(--transition-fast);
}

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

.table tbody tr.clickable {
  cursor: pointer;
}

.table tbody tr.selected {
  background-color: var(--color-primary-50);
}

/* ========== Pagination Component ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4);
}

.pagination-info {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pagination-btn {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  background-color: var(--color-surface);
  border-color: var(--color-primary-300);
}

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

.pagination-btn.active {
  background-color: var(--color-primary-600);
  color: white;
  border-color: var(--color-primary-600);
}

/* ========== Modal Component ========== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: fadeIn var(--transition-base);
}

.modal {
  background-color: var(--color-background);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 32rem;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  z-index: var(--z-modal);
  animation: slideUp var(--transition-base);
}

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

.modal-title {
  font-size: var(--text-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-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--color-gray-100);
  color: var(--color-text-primary);
}

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-6);
  border-top: 1px solid var(--color-border);
}

/* ========== Toast Component ========== */
.toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 400px;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: slideInRight var(--transition-base);
}

.toast-success {
  border-left: 4px solid var(--color-success-600);
}

.toast-error {
  border-left: 4px solid var(--color-danger-600);
}

.toast-warning {
  border-left: 4px solid var(--color-warning-600);
}

.toast-info {
  border-left: 4px solid var(--color-primary-600);
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-1);
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.toast-close {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

/* ========== Drawer Component ========== */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  animation: fadeIn var(--transition-base);
}

.drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 100%;
  max-width: 400px;
  background-color: var(--color-background);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.drawer-right {
  right: 0;
  animation: slideInRight var(--transition-base);
}

.drawer-left {
  left: 0;
  animation: slideInLeft var(--transition-base);
}

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

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

.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6);
}

.drawer-footer {
  padding: var(--space-6);
  border-top: 1px solid var(--color-border);
}

/* ========== Stepper Component ========== */
.stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) 0;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  position: relative;
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  right: -50%;
  height: 2px;
  background-color: var(--color-border);
  z-index: -1;
}

.step.completed:not(:last-child)::after {
  background-color: var(--color-primary-600);
}

.step-circle {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background-color: var(--color-gray-200);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
  transition: all var(--transition-fast);
}

.step.active .step-circle {
  background-color: var(--color-primary-600);
  color: white;
}

.step.completed .step-circle {
  background-color: var(--color-primary-600);
  color: white;
}

.step-label {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  text-align: center;
}

.step.active .step-label {
  color: var(--color-text-primary);
  font-weight: var(--font-medium);
}

/* ========== Skeleton Component ========== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 0%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: var(--space-4);
}

.skeleton-button {
  height: 40px;
  width: 100px;
}

.skeleton-card {
  height: 200px;
}

/* ========== Empty State Component ========== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-4);
  text-align: center;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  color: var(--color-text-disabled);
}

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

.empty-state-message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  max-width: 400px;
}

/* ========== Animations ========== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ========== Responsive Adjustments ========== */
@media (max-width: 768px) {
  .modal {
    max-width: 100%;
    margin: 0;
    border-radius: 0;
  }
  
  .drawer {
    max-width: 100%;
  }
  
  .toast-container {
    left: var(--space-4);
    right: var(--space-4);
    max-width: 100%;
  }
}