/**
 * Woo Coupons – Modern Frontend UI
 * - 卡片化外觀、圓角、柔和陰影
 * - 自適應網格 repeat(auto-fill, minmax(...))
 * - 排序選單膠囊化、明確的 active/hover/focus
 * - 更好的按鈕、狀態徽章、可讀性
 * - 暗色模式與行動裝置支援
 * - 減少動畫偏好支援
 */

:root {
  --wcc-primary-color: #0073aa;
  --wcc-primary-hover-color: #005a87;
  --wcc-border-color: #e5e7eb;
  --wcc-card-bg: #ffffff;
  --wcc-body-bg: #f7f8fa;
  --wcc-text: #111827;
  --wcc-muted: #6b7280;
  --wcc-radius: 12px;
  --wcc-card-shadow: 0 1px 2px rgba(16,24,40,.05), 0 8px 24px rgba(16,24,40,.08);
  --wcc-hover: #f5faff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --wcc-primary-color: #5ab0ff;
    --wcc-primary-hover-color: #3a8bd6;
    --wcc-border-color: #223041;
    --wcc-card-bg: #0f1720;
    --wcc-body-bg: #0b0f14;
    --wcc-text: #e6edf3;
    --wcc-muted: #94a3b8;
    --wcc-card-shadow: 0 1px 2px rgba(0,0,0,.35), 0 8px 24px rgba(0,0,0,.45);
    --wcc-hover: #0d2238;
  }
}

/* --- Main Container --- */
.wcc-coupons-container {
  width: 100%;
  margin-top: 20px;
  color: var(--wcc-text);
}
.wcc-coupons-container .screen-reader-text {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* --- Sorting Controls --- */
.wcc-sorting-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--wcc-border-color);
}
.wcc-sorting-label {
  font-weight: 700;
  color: var(--wcc-muted);
  font-size: .95rem;
}
.wcc-sorting-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-wrap: wrap;
  gap: 8px;
}
.wcc-sorting-item a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--wcc-primary-color);
  border: 1px solid var(--wcc-border-color);
  padding: 7px 12px;
  border-radius: 999px;
  font-weight: 600;
  line-height: 1;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.wcc-sorting-item a:hover {
  background: color-mix(in srgb, var(--wcc-primary-color) 12%, var(--wcc-card-bg));
  border-color: var(--wcc-primary-color);
}
.wcc-sorting-item a.active {
  background: var(--wcc-primary-color);
  border-color: var(--wcc-primary-color);
  color: #fff;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--wcc-primary-color) 20%, transparent);
}
.wcc-sorting-item a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--wcc-primary-color) 30%, transparent);
}

/* --- Coupon Grid --- */
.wcc-coupons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

/* --- Coupon Card --- */
.wcc-coupon-card {
  border: 1px solid var(--wcc-border-color);
  border-radius: var(--wcc-radius);
  background-color: var(--wcc-card-bg);
  box-shadow: var(--wcc-card-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.wcc-coupon-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(16,24,40,.12);
  border-color: color-mix(in srgb, var(--wcc-primary-color) 35%, var(--wcc-border-color));
}
.wcc-card-header, .wcc-card-body, .wcc-card-footer {
  display: grid;
  padding: 16px;
  gap: 10px;
}
.wcc-card-header {
  background: color-mix(in srgb, #fff 90%, var(--wcc-primary-color));
  border-bottom: 1px solid var(--wcc-border-color);
}
@media (prefers-color-scheme: dark) {
  .wcc-card-header {
    background: color-mix(in srgb, var(--wcc-card-bg) 70%, var(--wcc-primary-color));
  }
}
.wcc-card-title {
  margin: 0;
  font-size: 1.05rem;
  color: var(--wcc-text);
  font-weight: 700;
}
.wcc-card-wrapper {
  display: grid;
  gap: 10px;
  margin-top: 6px;
}
.wcc-card-body p {
  margin: 0;
  font-size: .95em;
  color: var(--wcc-muted);
}
.wcc-card-body p:last-child { margin-bottom: 0; }
.wcc-card-code {
  display: grid;
  grid-template-columns: 1fr 60px;
  justify-content: space-between;
  align-items: center;
  background: color-mix(in srgb, var(--wcc-primary-color) 6%, #f0f8ff);
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px dashed var(--wcc-primary-color);
}
.wcc-card-code span {
  font-weight: 800;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 1.05rem;
  letter-spacing: .02em;
  color: var(--wcc-primary-color);
}
.wcc-copy-btn, .wcc-claim-btn {
  appearance: none;
  font-weight: 700;
  border-radius: 10px;
  border: 1px solid var(--wcc-border-color);
  padding: 10px 12px;
  line-height: 1;
  cursor: pointer;
  background: var(--wcc-card-bg);
  color: var(--wcc-text);
  transition: background-color .15s ease, color .15s ease, border-color .15s ease, box-shadow .15s ease, transform .04s ease;
}
.wcc-copy-btn:hover { border-color: var(--wcc-primary-color); background: var(--wcc-hover); }
.wcc-copy-btn:active, .wcc-claim-btn:active { transform: translateY(1px); }
.wcc-card-footer {
  margin-top: auto;
  border-top: 1px solid var(--wcc-border-color);
  text-align: center;
  display: grid;
  gap: 10px;
}
.wcc-claim-btn {
  width: 100%;
  background: var(--wcc-primary-color);
  border-color: var(--wcc-primary-color);
  color: #fff;
}
.wcc-claim-btn:hover { background: var(--wcc-primary-hover-color); border-color: var(--wcc-primary-hover-color); }
.wcc-claim-btn:disabled {
  opacity: .6; cursor: not-allowed;
  background: var(--wcc-border-color); border-color: var(--wcc-border-color);
  color: var(--wcc-muted);
}
.wcc-copy-btn:focus-visible, .wcc-claim-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--wcc-primary-color) 28%, transparent);
}
.wcc-coupon-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 700;
  font-size: .85rem;
  color: var(--wcc-text);
}
.wcc-status-badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid var(--wcc-border-color);
  background: color-mix(in srgb, var(--wcc-primary-color) 4%, var(--wcc-card-bg));
}
.wcc-status-badge.is-active {
  background: color-mix(in srgb, #22c55e 10%, var(--wcc-card-bg));
  border-color: color-mix(in srgb, #22c55e 40%, var(--wcc-border-color));
  color: #166534;
}
.wcc-status-badge.is-used {
  background: color-mix(in srgb, #f59e0b 12%, var(--wcc-card-bg));
  border-color: color-mix(in srgb, #f59e0b 45%, var(--wcc-border-color));
  color: #7a3d00;
}
.wcc-status-badge.is-expired, .wcc-status-expired {
  border-color: color-mix(in srgb, #ef4444 45%, var(--wcc-border-color));
  color: #991b1b;
  text-decoration: none;
}

/* --- Pagination (General) --- */
.wcc-pagination {
  margin-top: 28px;
  text-align: center;
}

/* --- **FIX**: Styles for Reload (Numbered) Pagination --- */
.wcc-pagination-reload ul.page-numbers {
  display: inline-flex;
  justify-content: center;
  gap: 8px;
  list-style: none;
  padding: 0; margin: 0;
}
.wcc-pagination-reload .page-numbers a,
.wcc-pagination-reload .page-numbers span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--wcc-border-color);
  text-decoration: none;
  color: var(--wcc-muted);
  border-radius: var(--wcc-radius);
  font-weight: 600;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.wcc-pagination-reload .page-numbers a:hover {
  border-color: var(--wcc-primary-color);
  color: var(--wcc-primary-color);
  background: var(--wcc-hover);
}
.wcc-pagination-reload .page-numbers span.current {
  background-color: var(--wcc-primary-color);
  color: #fff;
  border-color: var(--wcc-primary-color);
}
.wcc-pagination-reload .page-numbers a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--wcc-primary-color) 25%, transparent);
}

/* --- **NEW**: Distinct Styles for AJAX Load More Button --- */
.wcc-load-more-btn {
  display: inline-block;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--wcc-radius);
  border: 1px solid var(--wcc-primary-color);
  padding: 12px 28px;
  line-height: 1;
  cursor: pointer;
  background: var(--wcc-primary-color);
  color: #fff;
  transition: background-color .15s ease, transform .04s ease;
}
.wcc-load-more-btn:hover {
  background: var(--wcc-primary-hover-color);
}
.wcc-load-more-btn:active {
  transform: translateY(1px);
}
.wcc-load-more-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
  background: var(--wcc-muted);
  border-color: var(--wcc-muted);
}
.wcc-load-more-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--wcc-primary-color) 28%, transparent);
}


/* --- Responsiveness & Reduced Motion --- */
@media (max-width: 1024px) {
  .wcc-coupons-grid { gap: 16px; }
}
@media (max-width: 768px) {
  .wcc-sorting-controls { flex-direction: column; align-items: flex-start; gap: 10px; }
  .wcc-coupons-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
}
@media (max-width: 480px) {
  .wcc-coupons-grid { grid-template-columns: 1fr; }
  .wcc-copy-btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .wcc-coupon-card:hover { transform: none; }
}