/* =========================================================
   享家论坛 · 组件库样式
   文件名：components.css
   用途：统一按钮、标签、卡片、表单、筛选、分页等组件
   依赖：design-tokens.css 变量
   ========================================================= */

/* ---------- 1. Button ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  font-family: var(--font-sans);
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled,
.btn--disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* sizes */
.btn-sm {
  height: 28px;
  padding: 0 12px;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-md {
  height: 36px;
  padding: 0 20px;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
}

.btn-lg {
  height: 44px;
  padding: 0 28px;
  font-size: var(--text-base);
  border-radius: var(--radius-md);
}

/* variants */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
  color: var(--color-white);
}

.btn-secondary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.btn-secondary:hover {
  background: var(--color-accent-600);
  border-color: var(--color-accent-600);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-gray-300);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-50);
  color: var(--color-primary-600);
}

.btn-ghost {
  background: transparent;
  color: var(--color-gray-700);
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--color-white);
  border-color: var(--color-danger);
}
.btn-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
  color: var(--color-white);
}

.btn-icon-only {
  padding: 0;
  width: 36px;
  display: inline-flex;
}
.btn-icon-only.btn-sm { width: 28px; }
.btn-icon-only.btn-lg { width: 44px; }

.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}
.btn-loading::after {
  content: "";
  position: absolute;
  width: 1em;
  height: 1em;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 2. Tag ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.2px;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.tag-pill {
  border-radius: var(--radius-full);
  padding: 2px 10px;
}

.tag-primary {
  background: rgba(51, 119, 255, 0.08);
  color: var(--color-primary-600);
  border-color: rgba(51, 119, 255, 0.15);
}
.tag-accent {
  background: var(--color-accent-50);
  color: var(--color-accent-600);
  border-color: rgba(255, 122, 51, 0.2);
}
.tag-success {
  background: var(--color-success-50);
  color: #047857;
  border-color: rgba(16, 185, 129, 0.2);
}
.tag-warning {
  background: var(--color-warning-50);
  color: #b45309;
  border-color: rgba(245, 158, 11, 0.2);
}
.tag-danger {
  background: var(--color-danger-50);
  color: #dc2626;
  border-color: rgba(239, 68, 68, 0.2);
}
.tag-info {
  background: var(--color-info-50);
  color: var(--color-info);
  border-color: rgba(59, 130, 246, 0.2);
}
.tag-outline {
  background: transparent;
  color: var(--color-gray-600);
  border-color: var(--color-gray-300);
}
.tag-outline:hover {
  background: var(--color-gray-100);
  border-color: var(--color-gray-300);
}

/* ---------- 3. Card Base ---------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
  overflow: hidden;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card--flat {
  box-shadow: none;
  border-color: var(--color-gray-200);
}
.card--flat:hover {
  box-shadow: var(--shadow-sm);
  transform: none;
}

/* ---------- 4. Article Card ---------- */
.article-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  height: 100%;
}
.article-card__cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-primary-50);
}
.article-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.article-card:hover .article-card__cover img {
  transform: scale(1.03);
}
.article-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-4);
  min-height: 0;
}
.article-card__tags {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
  min-height: 22px;
}
.article-card__title {
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.article-card__summary {
  position: relative;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}
.article-card__summary.line-clamp-2,
.case-card__summary {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-summary__more {
  display: none;
  position: absolute;
  right: 0;
  bottom: 0;
  padding-left: 22px;
  color: var(--color-primary);
  font-weight: 600;
  background: linear-gradient(90deg, transparent, var(--color-white) 22px);
}
.article-card__summary.is-truncated .card-summary__more,
.case-card__summary.is-truncated .card-summary__more {
  display: inline;
}
.article-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-gray-100);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}
.article-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  min-width: 0;
  color: var(--color-text-secondary);
  font-weight: 500;
}
.article-card__author .avatar {
  width: 20px;
  height: 20px;
  font-size: 10px;
}
.article-card__stats {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}
.article-card__stats span {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

/* ---------- 5. Horizontal Card (Gonglue) ---------- */
.h-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: var(--space-4);
  padding: var(--space-4);
  text-decoration: none;
  color: inherit;
  align-items: stretch;
}
.h-card__cover {
  width: 180px;
  height: 130px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--color-warning-50);
  flex-shrink: 0;
}
.h-card__body {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: var(--space-2);
}
.h-card__tags {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
}
.h-card__title {
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
}
.h-card__summary {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.h-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-gray-100);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}
.h-card__author {
  color: var(--color-primary);
  font-weight: 500;
  max-width: 60%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.h-card__stats {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}
.h-card__stats span {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

@media (max-width: 768px) {
  .h-card {
    grid-template-columns: 120px 1fr;
    gap: var(--space-3);
    padding: var(--space-3);
  }
  .h-card__cover {
    width: 120px;
    height: 100px;
  }
}

/* ---------- 6. Company Card ---------- */
.company-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-5);
  text-decoration: none;
  color: inherit;
  height: 100%;
}
.company-card__detail {
  color: inherit;
  text-decoration: none;
}
.company-card__detail:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}
.company-card__head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.company-card__logo {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--color-primary-50);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
}
.company-card__logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.company-card__meta {
  min-width: 0;
  flex: 1;
}
.company-card__name {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.company-card__city {
  font-size: var(--text-xs);
}
.company-card__tags {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}
.company-card__summary {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}
.company-card__promise {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  margin-top: auto;
}
.promise-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  color: var(--color-success);
  background: var(--color-success-50);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}
.company-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-gray-100);
}
.company-card__contact {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- 7. Case Card ---------- */
.case-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  height: 100%;
}
.case-card__cover {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--color-bg-light);
}
.case-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.case-card:hover .case-card__cover img {
  transform: scale(1.03);
}
.case-card__watermark {
  position: absolute;
  left: var(--space-3);
  bottom: var(--space-3);
  display: flex;
  gap: var(--space-1);
}
.case-card__watermark span {
  background: rgba(15, 23, 42, 0.6);
  color: var(--color-white);
  font-size: var(--text-xs);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  backdrop-filter: blur(4px);
}
.case-card__watermark .money {
  background: rgba(255, 122, 51, 0.9);
}
.case-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-4);
  min-height: 0;
}
.case-card__tags {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
  min-height: 22px;
}
.case-card__title {
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.case-card__summary {
  position: relative;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}
.case-card__spec {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  font-size: var(--text-xs);
  color: var(--color-gray-600);
}
.case-card__spec b {
  color: var(--color-primary);
  font-weight: 600;
}
.case-card__cost {
  color: var(--color-accent);
  font-weight: 700;
}
.case-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-gray-100);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}
.case-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  min-width: 0;
  color: var(--color-text-secondary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.case-card__stats {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}
.case-card__stats span {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.case-card__cover--ph {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-50);
  color: var(--color-primary);
  font-size: var(--text-2xl);
}

@media (max-width: 768px) {
  .case-card__cover { height: 180px; }
}

/* ---------- 8. News Card ---------- */
.news-card {
  display: flex;
  gap: var(--space-5);
  padding: var(--space-4);
  text-decoration: none;
  color: inherit;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}
.news-card__cover {
  width: 200px;
  height: 140px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-bg-light);
}
.news-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.news-card__tags {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
  min-height: 22px;
}
.news-card__category {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-1);
}
.news-card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.news-card__summary {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-3);
  flex: 1;
}
.news-card__meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-top: auto;
}

@media (max-width: 768px) {
  .news-card { flex-direction: column; }
  .news-card__cover { width: 100%; height: 180px; }
}

/* ---------- 9. Filter Bar ---------- */
.filter-bar {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
  margin-bottom: var(--space-6);
}
.filter-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px dashed var(--color-gray-200);
}
.filter-row:first-child { padding-top: 0; }
.filter-row:last-child { border-bottom: none; padding-bottom: 0; }
.filter-row__label {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  font-weight: 500;
  min-width: 48px;
  padding-top: 5px;
  flex-shrink: 0;
}
.filter-row__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  flex: 1;
}
.filter-option {
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-gray-100);
  border: 1px solid transparent;
  user-select: none;
}
.filter-option:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
}
.filter-option.active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.2);
}

@media (max-width: 768px) {
  .filter-bar { padding: var(--space-3); }
  .filter-row { flex-direction: column; gap: var(--space-2); }
  .filter-row__label { padding-top: 0; }
}

/* ---------- 10. Avatar ---------- */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 600;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  overflow: hidden;
  flex-shrink: 0;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.avatar-xs { width: 20px; height: 20px; font-size: 10px; }
.avatar-sm { width: 24px; height: 24px; font-size: 11px; }
.avatar-md { width: 32px; height: 32px; font-size: 14px; }
.avatar-lg { width: 56px; height: 56px; font-size: 20px; }
.avatar-xl { width: 80px; height: 80px; font-size: 28px; }

/* ---------- 11. Pagination ---------- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-10);
}
.pagination__item,
.pagination__item--active,
.pagination__item--disabled {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  border: 1px solid var(--color-gray-300);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--color-text-secondary);
  background: var(--color-white);
  text-decoration: none;
}
.pagination__item:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.pagination__item--active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.pagination__item--disabled {
  opacity: 0.45;
  cursor: not-allowed;
  background: var(--color-gray-100);
}

/* ---------- 12. Form ---------- */
.form-group {
  margin-bottom: var(--space-4);
}
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}
.form-label--required::after {
  content: " *";
  color: var(--color-danger);
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input,
.form-select {
  height: 44px;
  padding: 0 var(--space-4);
}
.form-textarea {
  min-height: 96px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
  line-height: 1.6;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}
.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background: var(--color-gray-100);
  color: var(--color-gray-400);
  cursor: not-allowed;
}
.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
  border-color: var(--color-danger);
}
.form-input.is-error:focus,
.form-select.is-error:focus,
.form-textarea.is-error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}
.form-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
}
.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

/* ---------- 13. Empty State ---------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-12) var(--space-5);
  color: var(--color-text-tertiary);
}
.empty-state .xj-icon {
  width: 48px;
  height: 48px;
  color: var(--color-gray-400);
  margin-bottom: var(--space-4);
}
.empty-state__title {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}
.empty-state__desc {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-5);
  max-width: 360px;
}

/* ---------- 14. Skeleton ---------- */
.skeleton {
  background: linear-gradient(90deg, var(--color-gray-100) 25%, var(--color-gray-200) 50%, var(--color-gray-100) 75%);
  background-size: 200% 100%;
  border-radius: var(--radius-sm);
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.skeleton-text { height: 16px; margin-bottom: 8px; }
.skeleton-text--sm { width: 40%; }
.skeleton-text--lg { width: 80%; }
.skeleton-avatar { width: 48px; height: 48px; border-radius: 50%; }
.skeleton-card { height: 160px; border-radius: var(--radius-lg); }

/* ---------- 15. Modal ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  z-index: 1000;
  animation: fadeIn 0.18s ease;
}
.modal {
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow: auto;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  animation: popIn 0.2s ease;
}
.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-5) 0;
}
.modal__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}
.modal__close {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  border-radius: 50%;
  color: var(--color-text-tertiary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.modal__close:hover {
  background: var(--color-gray-100);
  color: var(--color-text);
}
.modal__body {
  padding: var(--space-4) var(--space-5);
}
.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: 0 var(--space-5) var(--space-5);
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes popIn { from { transform: translateY(12px) scale(0.98); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- 16. Toast ---------- */
.toast {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 1100;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 240px;
  max-width: 360px;
  padding: var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--color-gray-300);
  animation: slideIn 0.2s ease;
}
.toast__icon { flex-shrink: 0; }
.toast__content { flex: 1; }
.toast__title { font-weight: 600; font-size: var(--text-sm); color: var(--color-text); margin-bottom: 2px; }
.toast__msg { font-size: var(--text-sm); color: var(--color-text-secondary); }
.toast-success { border-left-color: var(--color-success); }
.toast-error { border-left-color: var(--color-danger); }
.toast-warning { border-left-color: var(--color-warning); }
.toast-info { border-left-color: var(--color-info); }
@keyframes slideIn { from { transform: translateX(20px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- 17. Header & Footer ---------- */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-3);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  flex-shrink: 0;
  text-decoration: none;
}
.logo:hover { color: var(--color-primary-600); }
.main-nav {
  display: flex;
  gap: 4px;
  align-items: center;
  flex: 1;
  justify-content: center;
}
.main-nav a {
  color: var(--color-text);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
}
.main-nav a:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
}
.main-nav a.active {
  background: var(--color-primary);
  color: var(--color-white);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.site-footer {
  background: var(--color-gray-900);
  color: var(--color-gray-400);
  padding: var(--space-10) 0 var(--space-6);
  margin-top: var(--space-12);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}
.footer-col h4,
.footer-heading {
  color: var(--color-white);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  font-weight: 600;
}
.footer-col ul li { margin-bottom: var(--space-2); }
.footer-col ul li a {
  color: var(--color-gray-400);
  font-size: var(--text-sm);
}
.footer-col ul li a:hover { color: var(--color-white); }
.footer-bottom {
  border-top: 1px solid var(--color-gray-800);
  padding-top: var(--space-5);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
}

/* ---------- 18. Breadcrumb ---------- */
.breadcrumb {
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}
.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.breadcrumb li::after {
  content: "/";
  margin-left: var(--space-2);
  color: var(--color-gray-300);
}
.breadcrumb li:last-child::after { content: ""; }
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb li:last-child { color: var(--color-text); }

/* ---------- 19. Section Title ---------- */
.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}
.section-title h2 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.section-title h2::before {
  content: "";
  width: 4px;
  height: 22px;
  background: var(--color-primary);
  border-radius: 2px;
}
.section-title__more {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.section-title__more:hover { color: var(--color-primary); }

/* ---------- 20. Hero Banner ---------- */
.hero-banner {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  min-height: 280px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #3B82F6 0%, #2563EB 50%, #1D4ED8 100%);
  color: var(--color-white);
  margin-bottom: var(--space-8);
}
.hero-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.15), transparent 70%);
  border-radius: 50%;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
}
.hero-content h1 {
  font-size: var(--text-4xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  line-height: 1.3;
}
.hero-content p {
  font-size: var(--text-base);
  opacity: 0.9;
  margin-bottom: var(--space-6);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.hero-actions .btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.hero-actions .btn-primary:hover {
  background: var(--color-accent-600);
  border-color: var(--color-accent-600);
}
.hero-actions .btn-outline {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-white);
}
.hero-actions .btn-outline:hover {
  background: rgba(255, 255, 255, 0.25);
  color: var(--color-white);
}

@media (max-width: 768px) {
  .hero-banner { padding: var(--space-6) var(--space-5); min-height: auto; }
  .hero-content h1 { font-size: var(--text-2xl); }
}

/* ---------- 21. Grid Utilities ---------- */
.grid { display: grid; gap: var(--grid-gap); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }
  .grid-6 { grid-template-columns: repeat(2, 1fr); }
}