/**
 * Components
 * 共通コンポーネントスタイル
 */

/* ===========================================
   1. Buttons
   =========================================== */

/* Base Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
  white-space: nowrap;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
}

.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

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

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

.btn-xl {
  padding: 20px 40px;
  font-size: 18px;
}

.btn-full {
  width: 100%;
}

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-dark), #b8922d);
  box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
  background-color: var(--color-bg-light);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background-color: #e5e5e5;
  border-color: var(--color-border-dark);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  background-color: var(--color-bg-light);
  border-color: var(--color-text-secondary);
}

/* Outline Primary Button */
.btn-outline-primary {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline-primary:hover {
  background: var(--color-primary);
  color: #ffffff;
}

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

.btn-danger:hover {
  background-color: #dc2626;
}

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

.btn-ghost:hover {
  background-color: var(--color-bg-light);
}

/* Link Button */
.btn-link {
  background: transparent;
  color: var(--color-primary);
  padding: 0;
  text-decoration: underline;
}

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

/* Icon Button */
.btn-icon {
  padding: 12px;
  border-radius: var(--radius-full);
}

.btn-icon i {
  font-size: 20px;
}

/* ===========================================
   2. Forms
   =========================================== */

/* Form Group */
.form-group {
  margin-bottom: var(--space-lg);
}

/* Form Label */
.form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}

/* アスタリスクはテンプレート側で手動追加しているため、CSSでの自動追加は無効化 */
/* .form-label.required::after {
  content: " *";
  color: var(--color-error);
} */

/* Form Input */
.form-input {
  display: block;
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

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

.form-input:hover {
  border-color: var(--color-border-dark);
}

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

.form-input:disabled {
  background-color: var(--color-bg-light);
  cursor: not-allowed;
  opacity: 0.7;
}

/* Form Input Sizes */
.form-input-sm {
  padding: 8px 12px;
  font-size: 13px;
}

.form-input-lg {
  padding: 16px 20px;
  font-size: 16px;
}

/* Form Input States */
.form-input.is-invalid,
.form-input-error {
  border-color: var(--color-error);
}

.form-input.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input.is-valid {
  border-color: var(--color-success);
}

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

/* Form Select */
.form-select {
  display: block;
  width: 100%;
  padding: 12px 40px 12px 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  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 12px center;
  background-repeat: no-repeat;
  background-size: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  appearance: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.form-select:hover {
  border-color: var(--color-border-dark);
}

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

/* Form Checkbox & Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}

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

.form-check-input[type="radio"] {
  border-radius: var(--radius-full);
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
  background-size: 14px;
  background-position: center;
  background-repeat: no-repeat;
}

.form-check-input[type="radio"]:checked {
  background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3ccircle cx='8' cy='8' r='3'/%3e%3c/svg%3e");
}

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

.form-check-label {
  font-size: 14px;
  color: var(--color-text);
  cursor: pointer;
}

/* Form Error Message */
.form-error {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-error);
}

/* Form Help Text */
.form-help {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ===========================================
   3. Cards
   =========================================== */

/* Base Card */
.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

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

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

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

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-sm) 0;
}

.card-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Card Variants */
.card-bordered {
  box-shadow: none;
  border: 1px solid var(--color-border);
}

.card-flat {
  box-shadow: none;
  background-color: var(--color-bg-light);
}

.card-hover {
  transition: var(--transition-normal);
}

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

/* ===========================================
   4. Alerts / Messages
   =========================================== */

/* Base Alert */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: 14px;
  line-height: 1.5;
}

.alert i {
  flex-shrink: 0;
  font-size: 18px;
  margin-top: 1px;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: 4px;
}

/* Alert Variants */
.alert-error,
.alert-danger {
  background-color: var(--color-error-light);
  color: #dc2626;
  border: 1px solid var(--color-error-border);
}

.alert-success {
  background-color: var(--color-success-light);
  color: #16a34a;
  border: 1px solid var(--color-success-border);
}

.alert-warning {
  background-color: var(--color-warning-light);
  color: #d97706;
  border: 1px solid var(--color-warning-border);
}

.alert-info {
  background-color: var(--color-info-light);
  color: #2563eb;
  border: 1px solid var(--color-info-border);
}

/* ===========================================
   5. Badges / Tags
   =========================================== */

/* Base Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius-full);
}

/* Badge Variants */
.badge-primary {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

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

.badge-success {
  background-color: var(--color-success-light);
  color: #16a34a;
}

.badge-warning {
  background-color: var(--color-warning-light);
  color: #d97706;
}

.badge-danger,
.badge-error {
  background-color: var(--color-error-light);
  color: #dc2626;
}

.badge-info {
  background-color: var(--color-info-light);
  color: #2563eb;
}

/* Badge Sizes */
.badge-sm {
  padding: 2px 6px;
  font-size: 10px;
}

.badge-lg {
  padding: 6px 14px;
  font-size: 14px;
}

/* ===========================================
   6. Tables
   =========================================== */

/* Base Table */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

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

.table th {
  font-weight: 600;
  color: var(--color-text);
  background-color: var(--color-bg-lighter);
}

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

/* Table Variants */
.table-bordered th,
.table-bordered td {
  border: 1px solid var(--color-border);
}

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

/* ===========================================
   7. Lists
   =========================================== */

/* Description List */
.dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 24px;
}

.dl dt {
  font-weight: 500;
  color: var(--color-text-secondary);
}

.dl dd {
  margin: 0;
  color: var(--color-text);
}

/* Stacked Description List */
.dl-stacked dt {
  grid-column: 1 / -1;
  margin-bottom: -8px;
}

.dl-stacked dd {
  grid-column: 1 / -1;
}

/* ===========================================
   8. Dividers
   =========================================== */

.divider {
  height: 1px;
  background-color: var(--color-border);
  border: none;
  margin: var(--space-lg) 0;
}

.divider-vertical {
  width: 1px;
  height: auto;
  align-self: stretch;
  background-color: var(--color-border);
}

/* ===========================================
   9. Avatar
   =========================================== */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-light);
  color: var(--color-text-secondary);
  font-weight: 600;
  overflow: hidden;
}

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

.avatar-sm { width: 32px; height: 32px; font-size: 12px; }
.avatar-lg { width: 56px; height: 56px; font-size: 20px; }
.avatar-xl { width: 80px; height: 80px; font-size: 28px; }

/* ===========================================
   10. Skeleton Loading
   =========================================== */

.skeleton {
  background: linear-gradient(90deg, var(--color-bg-light) 25%, var(--color-bg-lighter) 50%, var(--color-bg-light) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}

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

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5em;
}

.skeleton-circle {
  border-radius: var(--radius-full);
}

/* ===========================================
   11. Tooltips
   =========================================== */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  font-size: 12px;
  color: #ffffff;
  background-color: var(--color-text);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
  pointer-events: none;
  z-index: var(--z-tooltip);
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ===========================================
   12. Progress
   =========================================== */

.progress {
  height: 8px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

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

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

/* ===========================================
   13. Spinner / Loading
   =========================================== */

.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spinner-rotate 0.8s linear infinite;
}

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

.spinner-sm { width: 16px; height: 16px; }
.spinner-lg { width: 32px; height: 32px; border-width: 3px; }

/* ===========================================
   14. Breadcrumb
   =========================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-item::after {
  content: "/";
  color: var(--color-text-muted);
}

.breadcrumb-item:last-child::after {
  display: none;
}

.breadcrumb-item a:hover {
  color: var(--color-primary);
}

/* ===========================================
   15. Empty State
   =========================================== */

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

.empty-state-icon {
  font-size: 48px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.empty-state-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.empty-state-description {
  font-size: 14px;
  color: var(--color-text-secondary);
  max-width: 320px;
}

/* ===========================================
   16. Overlay
   =========================================== */

.overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
}

/* ===========================================
   17. Scroll to Top
   =========================================== */

.scroll-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: var(--transition-normal);
  z-index: var(--z-fixed);
}

.scroll-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
}