/* HTTP Headers Checker Styles - Page Scoped */

.page-http-headers-checker {
  /* Design Tokens - Light Mode */
  --http-surface-bg: rgba(255, 255, 255, 1);
  --http-surface-bg-inner: rgba(249, 250, 251, 1);
  --http-card-bg: rgba(255, 255, 255, 1);
  --http-card-border: rgba(15, 23, 42, 0.08);
  --http-card-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.05);
  --http-card-shadow-strong: 0 4px 12px rgba(0, 0, 0, 0.08), 0 12px 30px rgba(0, 0, 0, 0.06);
  --http-accent-glow: rgba(59, 130, 246, 0.12);
  --http-text: rgba(15, 23, 42, 1);
  --http-text-muted: rgba(71, 85, 105, 1);
  --http-border: rgba(148, 163, 184, 0.2);
  --http-status-ok: rgb(34, 197, 94);
  --http-status-warn: rgb(251, 191, 36);
  --http-status-missing: rgba(148, 163, 184, 0.8);
  --http-status-error: rgb(239, 68, 68);
  --http-code-bg: rgba(2, 6, 23, 0.04);
  --http-zebra-stripe: rgba(15, 23, 42, 0.02);
  --http-row-hover: rgba(59, 130, 246, 0.04);
}

[data-theme="dark"] .page-http-headers-checker {
  /* Design Tokens - Dark Mode */
  --http-surface-bg: rgba(30, 41, 59, 0.65);
  --http-surface-bg-inner: rgba(15, 23, 42, 0.4);
  --http-card-bg: rgba(30, 41, 59, 0.65);
  --http-card-border: rgba(148, 163, 184, 0.14);
  --http-card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.2);
  --http-card-shadow-strong: 0 4px 12px rgba(0, 0, 0, 0.35), 0 12px 30px rgba(0, 0, 0, 0.25);
  --http-accent-glow: rgba(59, 130, 246, 0.15);
  --http-text: rgba(248, 250, 252, 1);
  --http-text-muted: rgba(148, 163, 184, 1);
  --http-border: rgba(148, 163, 184, 0.18);
  --http-status-ok: rgb(34, 197, 94);
  --http-status-warn: rgb(251, 191, 36);
  --http-status-missing: rgba(148, 163, 184, 0.7);
  --http-status-error: rgb(239, 68, 68);
  --http-code-bg: rgba(2, 6, 23, 0.55);
  --http-zebra-stripe: rgba(255, 255, 255, 0.02);
  --http-row-hover: rgba(59, 130, 246, 0.08);
}

/* Analyzer Panel (Sidebar) */
.page-http-headers-checker .http-analyzer-panel {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-http-headers-checker .http-panel-section {
  padding: 20px 0;
}

.page-http-headers-checker .http-panel-section.http-panel-divider {
  border-top: 1px solid var(--http-border);
  padding-top: 20px;
}

.page-http-headers-checker .http-panel-title {
  margin: 0 0 12px 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--http-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Quick Guide */
.page-http-headers-checker .http-quick-guide-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-http-headers-checker .http-quick-guide-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--http-text);
  opacity: 0.9;
}

.page-http-headers-checker .http-quick-guide-icon {
  flex-shrink: 0;
  font-size: 14px;
  margin-top: 1px;
}

.page-http-headers-checker .http-quick-guide-note {
  margin: 0;
  font-size: 11.5px;
  color: var(--http-text-muted);
  opacity: 0.7;
  font-style: italic;
  line-height: 1.4;
}

/* Share Section */
.page-http-headers-checker .http-share-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-http-headers-checker .http-share-btn {
  width: 100%;
  padding: 10px 14px;
  background: var(--http-code-bg);
  border: 1px solid var(--http-border);
  border-radius: 8px;
  color: var(--http-text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
}

.page-http-headers-checker .http-share-btn:hover {
  background: var(--http-row-hover);
  border-color: var(--http-text-muted);
}

.page-http-headers-checker .http-share-btn:focus {
  outline: 2px solid var(--http-status-ok);
  outline-offset: 2px;
}

.page-http-headers-checker .http-share-icon {
  font-size: 14px;
}

.page-http-headers-checker .http-share-social {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.page-http-headers-checker .http-share-social-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--http-code-bg);
  border: 1px solid var(--http-border);
  border-radius: 8px;
  color: var(--http-text);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}

.page-http-headers-checker .http-share-social-btn:hover {
  background: var(--http-row-hover);
  border-color: var(--http-text-muted);
  transform: translateY(-1px);
}

.page-http-headers-checker .http-share-social-btn:focus {
  outline: 2px solid var(--http-status-ok);
  outline-offset: 2px;
}

/* Actions Section */
.page-http-headers-checker .http-actions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-http-headers-checker .http-actions-hint {
  margin: 0;
  font-size: 12px;
  color: var(--http-text-muted);
  opacity: 0.7;
  font-style: italic;
}

.page-http-headers-checker .http-action-btn {
  width: 100%;
  padding: 10px 14px;
  background: var(--http-code-bg);
  border: 1px solid var(--http-border);
  border-radius: 8px;
  color: var(--http-text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
}

.page-http-headers-checker .http-action-btn:hover:not(:disabled) {
  background: var(--http-row-hover);
  border-color: var(--http-text-muted);
}

.page-http-headers-checker .http-action-btn:focus:not(:disabled) {
  outline: 2px solid var(--http-status-ok);
  outline-offset: 2px;
}

.page-http-headers-checker .http-action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.page-http-headers-checker .http-action-icon {
  font-size: 14px;
}

/* Sidebar sticky on desktop – no scroll, show all content */
@media (min-width: 969px) {
  .page-http-headers-checker .tool-input-panel {
    position: sticky;
    top: 96px;
    align-self: flex-start;
  }
}

/* Mobile: Quick Guide accordion */
@media (max-width: 968px) {
  .page-http-headers-checker .tool-input-panel {
    position: static;
  }

  .page-http-headers-checker .http-panel-section {
    padding: 16px 0;
  }

  .page-http-headers-checker .http-analyzer-panel {
    margin-top: 16px;
  }
}

/* All result cards - consistent styling with improved rhythm */
.page-http-headers-checker .http-headers-summary-card,
.page-http-headers-checker .http-headers-section-card,
.page-http-headers-checker .http-headers-raw-card,
.page-http-headers-checker .http-headers-health-card,
.page-http-headers-checker .http-headers-recommendations-card {
  background: var(--http-card-bg);
  border: 1px solid var(--http-card-border);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: var(--http-card-shadow);
  transition: box-shadow 0.2s, border-color 0.2s;
}

/* Primary card - Overall Header Health - stronger shadow */
.page-http-headers-checker .http-headers-health-card {
  box-shadow: var(--http-card-shadow-strong);
  border-color: var(--http-card-border);
  background: var(--http-card-bg);
  position: relative;
}

.page-http-headers-checker .http-headers-health-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.5), rgba(147, 51, 234, 0.3));
  border-radius: 14px 14px 0 0;
}

/* Card headers with collapsible button */
.page-http-headers-checker .http-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.page-http-headers-checker .http-card-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--http-text);
  flex: 1;
}

.page-http-headers-checker .http-card-toggle {
  background: transparent;
  border: 1px solid var(--http-border);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--http-text-muted);
  transition: all 0.2s;
  font-size: 14px;
  padding: 0;
  margin-left: 12px;
}

.page-http-headers-checker .http-card-toggle:hover {
  background: var(--http-code-bg);
  border-color: var(--http-text-muted);
}

.page-http-headers-checker .http-card-toggle.collapsed {
  transform: rotate(-90deg);
}

/* Expand/Collapse all buttons */
.page-http-headers-checker .http-health-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  justify-content: flex-end;
}

.page-http-headers-checker .http-health-action-btn {
  padding: 4px 10px;
  font-size: 11px;
  background: transparent;
  border: 1px solid var(--http-border);
  border-radius: 4px;
  color: var(--http-text-muted);
  cursor: pointer;
  transition: all 0.2s;
}

.page-http-headers-checker .http-health-action-btn:hover {
  background: var(--http-code-bg);
  color: var(--http-text);
}

/* Section hints */
.page-http-headers-checker .http-section-hint {
  margin: -8px 0 12px 0;
  font-size: 13px;
  color: var(--http-text-muted);
  opacity: 0.75;
  font-style: italic;
  line-height: 1.5;
}

/* Overall Header Health Card */
.page-http-headers-checker .http-health-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.page-http-headers-checker .http-health-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.page-http-headers-checker .http-health-icon {
  font-size: 12px;
  line-height: 1;
}

.page-http-headers-checker .http-health-label {
  color: var(--http-text);
}

/* Status Pills */
.page-http-headers-checker .pill--ok {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: var(--http-status-ok);
}

.page-http-headers-checker .pill--warn {
  background: rgba(251, 191, 36, 0.15);
  border: 1px solid rgba(251, 191, 36, 0.25);
  color: var(--http-status-warn);
}

.page-http-headers-checker .pill--info {
  background: rgba(148, 163, 184, 0.12);
  border: 1px solid rgba(148, 163, 184, 0.20);
  color: var(--http-status-missing);
}

.page-http-headers-checker .pill--error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: var(--http-status-error);
}

.page-http-headers-checker .pill--missing {
  background: rgba(148, 163, 184, 0.12);
  border: 1px solid rgba(148, 163, 184, 0.20);
  color: var(--http-status-missing);
}

.page-http-headers-checker .http-health-legend {
  margin: 10px 0 0 0;
  font-size: 11px;
  color: var(--http-text-muted);
  opacity: 0.6;
  font-style: italic;
  line-height: 1.4;
}

.page-http-headers-checker .http-health-microcopy {
  margin-top: 12px;
  font-size: 12px;
  color: var(--http-text-muted);
  opacity: 0.65;
  font-style: italic;
  line-height: 1.5;
}

/* Recommendations Panel */
.page-http-headers-checker .http-recommendations-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-http-headers-checker .http-recommendations-list li {
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--http-border);
}

.page-http-headers-checker .http-recommendations-list li:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.page-http-headers-checker .http-recommendation-label {
  font-weight: 600;
  color: var(--http-text);
  margin-bottom: 4px;
  font-size: 14px;
}

.page-http-headers-checker .http-recommendation-explain {
  font-size: 13px;
  color: var(--http-text-muted);
  margin-bottom: 8px;
  line-height: 1.5;
}

.page-http-headers-checker .http-recommendation-example {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 11.5px;
  background: var(--http-code-bg);
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--http-text);
  border: 1px solid var(--http-border);
}

.page-http-headers-checker .http-recommendations-empty {
  color: var(--http-text-muted);
  font-style: italic;
  padding: 8px 0;
}

/* Summary Card */
.page-http-headers-checker .http-status-pill {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.page-http-headers-checker .http-status-pill.status-ok {
  background: rgba(34, 197, 94, 0.15);
  color: rgb(34, 197, 94);
}

.page-http-headers-checker .http-status-pill.status-redirect {
  background: rgba(251, 191, 36, 0.15);
  color: rgb(251, 191, 36);
}

.page-http-headers-checker .http-status-pill.status-error {
  background: rgba(239, 68, 68, 0.15);
  color: rgb(239, 68, 68);
}

.page-http-headers-checker .http-summary-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-http-headers-checker .http-summary-list li {
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--http-text);
  opacity: 0.9;
}

.page-http-headers-checker .http-summary-list li code {
  background: var(--http-code-bg);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: monospace;
  font-size: 13px;
  word-break: break-all;
}

/* Tables - with sticky headers, zebra striping, and improved spacing */
.page-http-headers-checker .http-headers-table-wrapper {
  overflow-x: auto;
  margin-top: 4px;
  position: relative;
}

/* Fade gradient for overflow indicator */
.page-http-headers-checker .http-headers-table-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 100%;
  pointer-events: none;
  background: linear-gradient(to right, transparent, var(--http-card-bg));
  opacity: 0;
  transition: opacity 0.2s;
}

.page-http-headers-checker .http-headers-table-wrapper.scrollable::after {
  opacity: 0.6;
}

.page-http-headers-checker .http-headers-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.page-http-headers-checker .http-headers-table thead {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--http-card-bg);
}

.page-http-headers-checker .http-headers-table thead tr {
  border-bottom: 2px solid var(--http-border);
}

.page-http-headers-checker .http-headers-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--http-text);
  opacity: 0.85;
  background: var(--http-card-bg);
}

.page-http-headers-checker .http-headers-table th:nth-child(1) {
  width: 45%;
}

.page-http-headers-checker .http-headers-table th:nth-child(2) {
  width: 15%;
}

.page-http-headers-checker .http-headers-table th:nth-child(3) {
  width: 40%;
}

.page-http-headers-checker .http-headers-table td {
  padding: 10px 12px;
  font-size: 14px;
  color: var(--http-text);
  border-bottom: 1px solid var(--http-border);
  vertical-align: top;
}

/* Zebra striping */
.page-http-headers-checker .http-headers-table tbody tr:nth-child(even) {
  background: var(--http-zebra-stripe);
}

.page-http-headers-checker .http-headers-table tbody tr:hover {
  background: var(--http-row-hover);
}

.page-http-headers-checker .http-headers-table tbody tr:last-child td {
  border-bottom: none;
}

/* Table row accent borders */
.page-http-headers-checker .http-headers-table tbody tr {
  border-left: 2px solid transparent;
  transition: border-left-color 0.2s;
}

.page-http-headers-checker .http-headers-table tbody tr.http-table-row-ok {
  border-left-color: rgba(34, 197, 94, 0.3);
}

.page-http-headers-checker .http-headers-table tbody tr.http-table-row-warn {
  border-left-color: rgba(251, 191, 36, 0.3);
}

.page-http-headers-checker .http-headers-table tbody tr.http-table-row-missing {
  border-left-color: rgba(148, 163, 184, 0.15);
}

.page-http-headers-checker .http-headers-table tbody tr.http-table-row-missing[data-critical] {
  border-left-color: rgba(251, 191, 36, 0.4);
}

.page-http-headers-checker .http-headers-table tbody tr.http-table-row-info {
  border-left-color: rgba(148, 163, 184, 0.15);
}

/* Header impact labels */
.page-http-headers-checker .http-header-impact {
  font-size: 11.5px;
  color: var(--http-text-muted);
  opacity: 0.6;
  margin-top: 3px;
  font-style: italic;
  line-height: 1.3;
}

/* Header Badges */
.page-http-headers-checker .http-header-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.page-http-headers-checker .http-header-badge.badge-ok {
  background: rgba(34, 197, 94, 0.15);
  color: var(--http-status-ok);
}

.page-http-headers-checker .http-header-badge.badge-warn {
  background: rgba(251, 191, 36, 0.15);
  color: var(--http-status-warn);
}

.page-http-headers-checker .http-header-badge.badge-missing {
  background: rgba(148, 163, 184, 0.12);
  color: var(--http-status-missing);
}

.page-http-headers-checker .http-header-badge.badge-info {
  background: rgba(148, 163, 184, 0.12);
  color: var(--http-status-missing);
}

/* Header Values - monospace, truncate with ellipsis */
.page-http-headers-checker .header-value-cell {
  position: relative;
  max-width: 0;
  overflow: visible;
}

.page-http-headers-checker .header-value-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.page-http-headers-checker .header-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  background: var(--http-code-bg);
  padding: 4px 8px;
  border-radius: 4px;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  flex: 1;
  cursor: default;
}

.page-http-headers-checker .header-value-copy {
  opacity: 0;
  transition: opacity 0.2s;
  padding: 4px 6px;
  font-size: 11px;
  background: var(--http-code-bg);
  border: 1px solid var(--http-border);
  border-radius: 4px;
  color: var(--http-text-muted);
  cursor: pointer;
  white-space: nowrap;
}

.page-http-headers-checker .header-value-wrapper:hover .header-value-copy {
  opacity: 1;
}

.page-http-headers-checker .header-value-empty {
  color: var(--http-text-muted);
  opacity: 0.4;
  font-style: italic;
}

.page-http-headers-checker .header-value-toggle {
  margin-top: 6px;
  padding: 4px 8px;
  font-size: 11.5px;
  background: transparent;
  border: 1px solid var(--http-border);
  border-radius: 4px;
  color: var(--http-text-muted);
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s, background 0.2s;
}

.page-http-headers-checker .header-value-toggle:hover {
  opacity: 1;
  background: var(--http-code-bg);
}

/* Raw Headers */
.page-http-headers-checker .http-headers-raw-header {
  margin-bottom: 10px;
}

.page-http-headers-checker .http-headers-raw-header > h3 {
  margin-bottom: 8px;
}

.page-http-headers-checker .http-headers-raw-actions-wrapper {
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
}

.page-http-headers-checker .http-headers-raw-actions {
  display: flex;
  gap: 8px;
}

.page-http-headers-checker .http-headers-copy-btn,
.page-http-headers-checker .http-headers-toggle-btn {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  background: var(--color-primary, rgb(59, 130, 246));
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  min-height: 32px;
}

.page-http-headers-checker .http-headers-copy-btn:hover,
.page-http-headers-checker .http-headers-toggle-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.page-http-headers-checker .http-headers-copy-btn:focus,
.page-http-headers-checker .http-headers-toggle-btn:focus {
  outline: 2px solid var(--http-status-ok);
  outline-offset: 2px;
}

.page-http-headers-checker .http-headers-toggle-btn {
  background: var(--http-text);
  opacity: 0.7;
  color: var(--http-card-bg);
}

.page-http-headers-checker .http-headers-toggle-btn:hover {
  opacity: 0.85;
}

.page-http-headers-checker .http-headers-raw-hint {
  font-size: 12px;
  color: var(--http-text-muted);
  opacity: 0.6;
  font-style: italic;
  margin: -8px 0 12px 0;
}

.page-http-headers-checker .http-headers-raw-content {
  background: var(--http-code-bg);
  border: 1px solid var(--http-border);
  padding: 16px;
  border-radius: 6px;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--http-text);
  margin: 0;
  white-space: pre;
  max-height: 360px;
  overflow-y: auto;
}

.page-http-headers-checker .http-headers-raw-content code {
  font-family: inherit;
  font-size: inherit;
  background: transparent;
  padding: 0;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Metadata Footer */
.page-http-headers-checker .http-headers-metadata-footer {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--http-border);
  font-size: 12px;
  color: var(--http-text-muted);
  opacity: 0.7;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-http-headers-checker .http-headers-metadata-footer code {
  background: var(--http-code-bg);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 11px;
}

/* Toast Notification */
.page-http-headers-checker .http-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--http-card-bg);
  border: 1px solid var(--http-border);
  border-radius: 8px;
  padding: 12px 18px;
  box-shadow: var(--http-card-shadow-strong);
  color: var(--http-text);
  font-size: 14px;
  z-index: 10000;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}

.page-http-headers-checker .http-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Loading Skeleton */
.page-http-headers-checker .http-skeleton {
  background: var(--http-code-bg);
  border-radius: 6px;
  height: 20px;
  margin-bottom: 12px;
  animation: http-skeleton-pulse 1.5s ease-in-out infinite;
}

@keyframes http-skeleton-pulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 0.7;
  }
}

/* Form Error */
.page-http-headers-checker .http-form-error {
  margin-top: 8px;
  font-size: 13px;
  color: var(--http-status-error);
  display: none;
}

.page-http-headers-checker .http-form-error.show {
  display: block;
}

/* Button Loading State */
.page-http-headers-checker .tool-submit-btn.loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

.page-http-headers-checker .tool-submit-btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: http-spin 0.6s linear infinite;
}

@keyframes http-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* Collapsible Content */
.page-http-headers-checker .http-card-content {
  transition: max-height 0.3s ease-out, opacity 0.2s;
  overflow: hidden;
}

.page-http-headers-checker .http-card-content.collapsed {
  max-height: 0;
  opacity: 0;
  margin: 0;
  padding: 0;
}

/* Responsive - Stack columns at <= 980px */
@media (max-width: 980px) {
  .page-http-headers-checker .tool-content {
    flex-direction: column;
  }

  .page-http-headers-checker .tool-input-panel {
    width: 100%;
    margin-bottom: 24px;
  }

  .page-http-headers-checker .tool-results-panel {
    width: 100%;
  }

  .page-http-headers-checker .http-health-chips {
    gap: 8px;
  }

  .page-http-headers-checker .header-value-copy {
    opacity: 1;
  }

  .page-http-headers-checker .http-headers-table-wrapper::after {
    display: none;
  }
}

@media (max-width: 768px) {
  .page-http-headers-checker .http-health-chips {
    flex-direction: column;
    gap: 8px;
  }
  
  .page-http-headers-checker .http-headers-table {
    font-size: 12px;
    table-layout: auto;
  }
  
  .page-http-headers-checker .http-headers-table th,
  .page-http-headers-checker .http-headers-table td {
    padding: 8px 8px;
  }
  
  .page-http-headers-checker .http-headers-metadata-footer {
    flex-direction: column;
    gap: 4px;
  }

  .page-http-headers-checker .http-toast {
    bottom: 16px;
    right: 16px;
    left: 16px;
  }
}