/*
 * Brakeman Report Visualizer
 *
 * All colors go through the --bk-* tokens below. Dark values are the default,
 * light values override them under html[data-theme="light"].
 *
 * Note: the neon theme exposes --background-color-* as hex values, so they
 * cannot be used inside rgba(var(...)). Only --font-color, --font-blue and
 * --font-blue-rgb (which follow the user's accent color) are reused here.
 */

/* Design tokens — dark theme (default) */
.brakeman-visualizer {
  --bk-text: var(--font-color, #f5f5f5);
  --bk-text-secondary: #c9cbd1;
  --bk-text-muted: #a3a6ad;

  --bk-accent: var(--font-blue, #64a3cc);
  --bk-accent-rgb: var(--font-blue-rgb, 100, 163, 204);
  --bk-on-accent: #101011;
  --bk-glow: 0 0 15px rgba(var(--bk-accent-rgb), 0.3);
  --bk-accent-tint: rgba(var(--bk-accent-rgb), 0.1);

  --bk-surface: rgba(255, 255, 255, 0.025);
  --bk-surface-hover: rgba(255, 255, 255, 0.06);
  --bk-surface-sunken: rgba(0, 0, 0, 0.2);
  --bk-surface-inset: rgba(255, 255, 255, 0.03);
  --bk-border: rgba(255, 255, 255, 0.08);
  --bk-border-strong: rgba(255, 255, 255, 0.16);
  --bk-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  --bk-shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.25);

  --bk-high: #f87171;
  --bk-high-bg: rgba(239, 68, 68, 0.15);
  --bk-high-border: rgba(239, 68, 68, 0.4);
  --bk-med: #fbbf24;
  --bk-med-bg: rgba(245, 158, 11, 0.15);
  --bk-med-border: rgba(245, 158, 11, 0.35);
  --bk-weak: #34d399;
  --bk-weak-bg: rgba(16, 185, 129, 0.15);
  --bk-weak-border: rgba(16, 185, 129, 0.35);
  --bk-ignored: #c4b5fd;
  --bk-ignored-bg: rgba(139, 92, 246, 0.15);
  --bk-ignored-border: rgba(139, 92, 246, 0.4);

  /* Code blocks keep a dark technical look in both themes */
  --bk-code-bg: #090d16;
  --bk-code-header-bg: #0f1522;
  --bk-code-text: #e2e8f0;
  --bk-code-muted: #a0aec0;
  --bk-code-border: rgba(255, 255, 255, 0.08);

  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
  color: var(--bk-text);
}

/* Design tokens — light theme */
[data-theme="light"] .brakeman-visualizer,
html[data-theme="light"] .brakeman-visualizer {
  --bk-text: #0f172a;
  --bk-text-secondary: #334155;
  --bk-text-muted: #475569;

  --bk-accent: var(--font-blue, #27567d);
  --bk-accent-rgb: var(--font-blue-rgb, 39, 86, 125);
  --bk-on-accent: #ffffff;
  --bk-glow: none;
  /* Kept very light so every theme accent (incl. orange #b45309) stays >= 4.5:1 */
  --bk-accent-tint: rgba(var(--bk-accent-rgb), 0.05);

  --bk-surface: #ffffff;
  --bk-surface-hover: #f1f5f9;
  --bk-surface-sunken: #f8fafc;
  --bk-surface-inset: #f8fafc;
  --bk-border: #e2e8f0;
  --bk-border-strong: #cbd5e1;
  --bk-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 14px rgba(15, 23, 42, 0.05);
  --bk-shadow-hover: 0 2px 6px rgba(15, 23, 42, 0.08), 0 8px 24px rgba(15, 23, 42, 0.08);

  --bk-high: #b91c1c;
  --bk-high-bg: #fef2f2;
  --bk-high-border: #fecaca;
  --bk-med: #b45309;
  --bk-med-bg: #fffbeb;
  --bk-med-border: #fde68a;
  --bk-weak: #047857;
  --bk-weak-bg: #ecfdf5;
  --bk-weak-border: #a7f3d0;
  --bk-ignored: #6d28d9;
  --bk-ignored-bg: #f5f3ff;
  --bk-ignored-border: #ddd6fe;

  --bk-code-border: #1e293b;
}

/* Elements toggled via the hidden attribute must stay hidden despite display rules */
.brakeman-visualizer [hidden] {
  display: none !important;
}

/* Screen Reader Only (Accessibility helper) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Header */
.tool-header {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.tool-header h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--bk-accent);
  text-shadow: var(--bk-glow);
  margin-bottom: 0.5rem;
}

.tool-subtitle {
  font-size: 1.1rem;
  color: var(--bk-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* Dropzone styling */
.dropzone-container {
  background: var(--bk-surface);
  border: 2px dashed rgba(var(--bk-accent-rgb), 0.45);
  border-radius: 12px;
  padding: 3.5rem 2rem;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  box-shadow: var(--bk-shadow);
  margin-bottom: 3rem;
  display: block;
}

.dropzone-container:hover, .dropzone-container.dragover {
  border-color: var(--bk-accent);
  background: var(--bk-surface-hover);
  box-shadow: 0 0 25px rgba(var(--bk-accent-rgb), 0.2);
  transform: translateY(-2px);
}

.dropzone-icon {
  font-size: 3.5rem;
  color: var(--bk-accent);
  margin-bottom: 1rem;
  text-shadow: var(--bk-glow);
}

.dropzone-text h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--bk-text);
}

.dropzone-text p {
  color: var(--bk-text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.browse-btn {
  background: var(--bk-accent-tint);
  color: var(--bk-accent);
  border: 1px solid var(--bk-accent);
  padding: 0.6rem 1.8rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-block;
}

.browse-btn:hover {
  background: var(--bk-accent);
  color: var(--bk-on-accent);
  box-shadow: 0 0 15px rgba(var(--bk-accent-rgb), 0.35);
}

/* Keyboard focus visibility for dropzone file input */
#file-input:focus + .browse-btn,
#file-input:focus-visible + .browse-btn {
  outline: 2px solid var(--bk-accent);
  outline-offset: 4px;
}

/* Dropzone actions: Browse File + Load Sample Report */
.dropzone-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 1rem;
}

.dropzone-separator {
  color: var(--bk-text-muted);
  font-size: 0.9rem;
}

.sample-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  color: var(--bk-text);
  border: 1px dashed var(--bk-border-strong);
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  line-height: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}

.sample-btn i {
  color: var(--bk-accent);
}

.sample-btn:hover {
  border-style: solid;
  border-color: var(--bk-accent);
  background: var(--bk-accent-tint);
}

.sample-btn:focus-visible {
  outline: 2px solid var(--bk-accent);
  outline-offset: 4px;
}

.dropzone-text .dropzone-hint {
  margin: 1.25rem 0 0;
  font-size: 0.85rem;
  color: var(--bk-text-muted);
}

/* Error message block */
.error-message-block {
  display: none;
  background: var(--bk-high-bg);
  border: 1px solid var(--bk-high-border);
  border-radius: 8px;
  padding: 1.2rem;
  margin-bottom: 2rem;
  align-items: flex-start;
  gap: 1rem;
}

.error-message-block:focus, .error-message-block:focus-visible {
  outline: 2px solid var(--bk-high);
  outline-offset: 2px;
}

.error-message-block i {
  font-size: 1.5rem;
  color: var(--bk-high);
  flex-shrink: 0;
}

.error-content h3 {
  font-size: 1.1rem;
  color: var(--bk-high);
  margin-bottom: 0.25rem;
  font-weight: 600;
}

.error-content p {
  font-size: 0.95rem;
  margin-bottom: 0;
  color: var(--bk-text);
}

/* Dashboard View */
.dashboard-view {
  display: none;
}

.dashboard-view:focus, .dashboard-view:focus-visible {
  outline: none;
  box-shadow: none;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.dashboard-title-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
}

.dashboard-title-group h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--bk-accent);
  margin-bottom: 0;
}

/* Subtle marker shown while the embedded sample report is displayed */
.sample-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  background: var(--bk-accent-tint);
  border: 1px solid rgba(var(--bk-accent-rgb), 0.45);
  color: var(--bk-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.dashboard-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.upload-another-btn {
  background: transparent;
  border: 1px solid rgba(var(--bk-accent-rgb), 0.45);
  color: var(--bk-accent);
  padding: 0.4rem 1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.upload-another-btn:hover {
  background: var(--bk-accent);
  border-color: var(--bk-accent);
  color: var(--bk-on-accent);
  box-shadow: 0 0 10px rgba(var(--bk-accent-rgb), 0.2);
}

.upload-another-btn:focus-visible {
  outline: 2px solid var(--bk-accent);
  outline-offset: 2px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.summary-card {
  background: var(--bk-surface);
  border: 1px solid var(--bk-border);
  border-radius: 10px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  box-shadow: var(--bk-shadow);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.summary-card:hover {
  border-color: rgba(var(--bk-accent-rgb), 0.35);
}

.card-icon-container {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  flex-shrink: 0;
}

.card-details h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--bk-text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
  font-weight: 600;
}

.card-details .value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--bk-text);
}

/* Discreet secondary line under a metric (e.g. "0 active · 4 ignored") */
.summary-card .card-note {
  font-size: 0.8rem;
  color: var(--bk-text-muted);
  margin: 0.15rem 0 0;
}

/* Colors for summary metrics */
.icon-total { background: var(--bk-accent-tint); color: var(--bk-accent); }
.icon-high { background: var(--bk-high-bg); color: var(--bk-high); }
.icon-med { background: var(--bk-med-bg); color: var(--bk-med); }
.icon-weak { background: var(--bk-weak-bg); color: var(--bk-weak); }

.value-high, .card-details .value-high { color: var(--bk-high) !important; }
.value-med, .card-details .value-med { color: var(--bk-med) !important; }
.value-weak, .card-details .value-weak { color: var(--bk-weak) !important; }

/* Score Gauge Card */
.score-card {
  grid-column: span 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.score-details {
  flex: 1;
}

.score-details h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--bk-text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
  font-weight: 600;
}

.score-details .value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--bk-text);
}

.score-details p {
  color: var(--bk-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.score-gauge-container {
  width: 90px;
  height: 90px;
  position: relative;
  flex-shrink: 0;
}

.score-ring-bg {
  fill: none;
  stroke: var(--bk-border);
  stroke-width: 6;
}

.score-ring-val {
  fill: none;
  stroke: var(--bk-accent);
  stroke-width: 6;
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
  transition: stroke-dashoffset 0.6s ease;
}

.score-ring-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--bk-accent);
  text-shadow: var(--bk-glow);
}

/* Meta information row */
.meta-info-row {
  background: var(--bk-surface);
  border: 1px solid var(--bk-border);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.5rem;
  font-size: 0.9rem;
  color: var(--bk-text-secondary);
  box-shadow: var(--bk-shadow);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.meta-item i {
  color: var(--bk-accent);
}

.meta-item strong {
  color: var(--bk-text);
}

/* Filters & Search Toolbar */
.filter-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.8rem;
  align-items: center;
  justify-content: space-between;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
  min-width: 280px;
}

.search-input-wrapper i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--bk-text-muted);
  pointer-events: none;
}

.search-input-wrapper .search-bar {
  width: 100%;
  height: auto;
  margin: 0;
  background: var(--bk-surface);
  border: 1px solid var(--bk-border-strong);
  border-radius: 8px;
  box-shadow: none;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  color: var(--bk-text);
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.search-bar::placeholder {
  color: var(--bk-text-muted);
  opacity: 1;
}

.search-input-wrapper .search-bar:hover {
  border-color: rgba(var(--bk-accent-rgb), 0.5);
}

.search-input-wrapper .search-bar:focus {
  background: var(--bk-surface);
  border-color: var(--bk-accent);
  outline: 2px solid var(--bk-accent);
  outline-offset: -2px;
  box-shadow: 0 0 0 4px rgba(var(--bk-accent-rgb), 0.12);
}

.filter-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bk-surface);
  border: 1px solid var(--bk-border-strong);
  color: var(--bk-text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Explicit CSS classes for filter button icons */
.filter-btn.btn-high i { color: var(--bk-high); }
.filter-btn.btn-med i { color: var(--bk-med); }
.filter-btn.btn-weak i { color: var(--bk-weak); }
.filter-btn.btn-ignored i { color: var(--bk-ignored); }

.filter-count {
  min-width: 1.5em;
  padding: 0 0.4rem;
  border-radius: 10px;
  background: var(--bk-surface-inset);
  border: 1px solid var(--bk-border);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  color: inherit;
}

.filter-btn.active .filter-count {
  border-color: rgba(var(--bk-accent-rgb), 0.4);
}

.filter-btn:hover, .filter-btn:focus-visible {
  background: var(--bk-surface-hover);
  border-color: rgba(var(--bk-accent-rgb), 0.5);
  color: var(--bk-text);
}

.filter-btn:focus-visible {
  outline: 2px solid var(--bk-accent);
  outline-offset: 2px;
}

.filter-btn.active {
  background: var(--bk-accent-tint);
  border-color: var(--bk-accent);
  color: var(--bk-accent);
  font-weight: 600;
  box-shadow: 0 0 10px rgba(var(--bk-accent-rgb), 0.15);
}

/* Warnings Listing Header */
.warnings-header-container {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.warnings-header-container h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0;
  color: var(--bk-text);
}

.warnings-header-container .counter {
  font-size: 0.9rem;
  background: var(--bk-surface-hover);
  border: 1px solid var(--bk-border);
  padding: 0.2rem 0.7rem;
  border-radius: 20px;
  color: var(--bk-text-secondary);
  font-weight: 500;
}

.warnings-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.warning-item {
  background: var(--bk-surface);
  border: 1px solid var(--bk-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--bk-shadow);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.warning-item:hover {
  border-color: rgba(var(--bk-accent-rgb), 0.35);
  box-shadow: var(--bk-shadow-hover);
}

.warning-item.expanded {
  border-color: rgba(var(--bk-accent-rgb), 0.55);
}

.warning-item.hidden-by-filter {
  display: none !important;
}

/* Warning Header Accordion Button */
.warning-summary-row {
  width: 100%;
  background: transparent;
  border: none;
  text-align: left;
  padding: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  cursor: pointer;
  color: inherit;
}

.warning-summary-row:focus-visible {
  outline: 2px solid var(--bk-accent);
  outline-offset: -2px;
}

.warning-primary-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

.severity-indicator {
  width: 6px;
  height: 40px;
  border-radius: 10px;
  flex-shrink: 0;
}

.severity-high-bar { background-color: #ef4444; box-shadow: 0 0 10px rgba(239, 68, 68, 0.5); }
.severity-med-bar { background-color: #f59e0b; box-shadow: 0 0 10px rgba(245, 158, 11, 0.5); }
.severity-weak-bar { background-color: #10b981; box-shadow: 0 0 10px rgba(16, 185, 129, 0.5); }

html[data-theme="light"] .severity-indicator { box-shadow: none; }

.warning-meta-data {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.warning-type-badge {
  font-family: monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: 0.03em;
}

.warning-type-high { color: var(--bk-high); }
.warning-type-med { color: var(--bk-med); }
.warning-type-weak { color: var(--bk-weak); }

.warning-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--bk-text);
}

.warning-location {
  font-size: 0.85rem;
  color: var(--bk-text-muted);
  font-family: monospace;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.15rem;
}

.warning-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.warning-badge {
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: bold;
  text-transform: uppercase;
}

.badge-high { background: var(--bk-high-bg); color: var(--bk-high); border: 1px solid var(--bk-high-border); }
.badge-med { background: var(--bk-med-bg); color: var(--bk-med); border: 1px solid var(--bk-med-border); }
.badge-weak { background: var(--bk-weak-bg); color: var(--bk-weak); border: 1px solid var(--bk-weak-border); }
.badge-ignored {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bk-ignored-bg);
  color: var(--bk-ignored);
  border: 1px solid var(--bk-ignored-border);
}

/* Ignored warnings: dimmed severity bar, still fully readable text */
.warning-item.is-ignored .severity-indicator {
  opacity: 0.45;
  box-shadow: none;
}

.ignored-note {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: var(--bk-ignored-bg);
  border: 1px solid var(--bk-ignored-border);
  border-left: 3px solid var(--bk-ignored);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
}

.ignored-note > i {
  color: var(--bk-ignored);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.ignored-note p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--bk-text);
}

.ignored-note .ignored-note-title {
  font-weight: 600;
  color: var(--bk-ignored);
  margin-bottom: 0.2rem;
}

.expand-chevron {
  font-size: 1.3rem;
  color: var(--bk-text-muted);
  transition: transform 0.2s ease;
}

.warning-item.expanded .expand-chevron {
  transform: rotate(180deg);
  color: var(--bk-accent);
}

/* Expanded content panel with role="region" */
.warning-details-panel {
  display: none;
  border-top: 1px solid var(--bk-border);
  background: var(--bk-surface-sunken);
  padding: 1.5rem;
}

/* Code block section (dark look in both themes, standard for code) */
.code-section {
  background: var(--bk-code-bg);
  border: 1px solid var(--bk-code-border);
  border-radius: 6px;
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.code-header {
  background: var(--bk-code-header-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-family: monospace;
  color: var(--bk-code-muted);
  display: flex;
  justify-content: space-between;
}

.code-block {
  padding: 1rem;
  margin: 0;
  overflow-x: auto;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--bk-code-text);
}

/* Reset Foundation's light inline-code styling inside dark code blocks */
.code-section pre code,
.comparison-card pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* Clean inline code styling for visualizer body */
.brakeman-visualizer code:not(pre code) {
  background: var(--bk-surface-hover);
  color: var(--bk-text);
  border: 1px solid var(--bk-border);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.88em;
}

/* Tab container for Remediation / Explanation */
.remediation-tabs {
  margin-top: 1.5rem;
}

.tab-nav {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--bk-border-strong);
  margin-bottom: 1rem;
}

.tab-link {
  background: transparent;
  border: none;
  color: var(--bk-text-muted);
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.tab-link:hover {
  color: var(--bk-text);
}

.tab-link:focus-visible {
  outline: 2px solid var(--bk-accent);
  outline-offset: -2px;
}

.tab-link.active {
  color: var(--bk-accent);
}

.tab-link.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--bk-accent);
  box-shadow: 0 0 10px rgba(var(--bk-accent-rgb), 0.5);
}

html[data-theme="light"] .tab-link.active::after { box-shadow: none; }

.tab-panel {
  display: none;
}

/* Tabpanels focus style */
.tab-panel:focus, .tab-panel:focus-visible {
  outline: 1px dashed var(--bk-accent);
  outline-offset: 4px;
}

.tab-panel.active {
  display: block;
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-content {
  line-height: 1.6;
  color: var(--bk-text-secondary);
}

.panel-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--bk-text);
  margin-bottom: 0.5rem;
}

.panel-content p {
  font-size: 0.95rem;
  color: var(--bk-text-secondary);
  margin-bottom: 1rem;
}

.panel-content strong {
  color: var(--bk-text);
}

/* Side-by-side or stacked code guides */
.comparison-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.comparison-card {
  background: var(--bk-code-bg);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--bk-border);
}

.comparison-card.vulnerable {
  border-color: var(--bk-high-border);
}

.comparison-card.secure {
  border-color: var(--bk-weak-border);
}

.comparison-title {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-weight: bold;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.vulnerable .comparison-title {
  background: var(--bk-high-bg);
  color: var(--bk-high);
}

.secure .comparison-title {
  background: var(--bk-weak-bg);
  color: var(--bk-weak);
}

.comparison-card pre,
.code-section pre {
  margin: 0;
  padding: 1rem;
  border: 0;
  background: var(--bk-code-bg);
  color: var(--bk-code-text);
  font-size: 0.85rem;
  overflow-x: auto;
}

.panel-content .comparison-explanation {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  background: var(--bk-surface-inset);
  color: var(--bk-text-secondary);
  border: 1px solid var(--bk-border);
  border-left: 3px solid var(--bk-accent);
  border-radius: 6px;
}

/* Checklist and list styling */
.remediation-checklist {
  list-style: none;
  padding-left: 0;
  margin: 1rem 0;
}

.remediation-checklist li {
  position: relative;
  padding-left: 1.8rem;
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
  color: var(--bk-text);
}

.remediation-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0.2rem;
  top: 0.1rem;
  color: var(--bk-weak);
  font-weight: bold;
  font-size: 1.1rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bk-surface);
  border-radius: 8px;
  border: 1px dashed var(--bk-border-strong);
}

.empty-state i {
  font-size: 3rem;
  color: var(--bk-weak);
  margin-bottom: 1rem;
}

.empty-state p {
  color: var(--bk-text-secondary);
  font-size: 1.1rem;
  margin-bottom: 0;
}

/* References block */
.references-block {
  margin-top: 1rem;
}

.ref-label {
  font-size: 0.85rem;
  color: var(--bk-text-muted);
  margin-right: 0.5rem;
}

.reference-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--bk-accent);
  text-decoration: none;
  background: var(--bk-accent-tint);
  padding: 0.3rem 0.7rem;
  border-radius: 4px;
  border: 1px solid rgba(var(--bk-accent-rgb), 0.3);
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  transition: all 0.2s ease;
}

.reference-link:hover {
  background: var(--bk-accent);
  color: var(--bk-on-accent);
  box-shadow: 0 0 10px rgba(var(--bk-accent-rgb), 0.3);
}

.reference-link:focus-visible {
  outline: 2px solid var(--bk-accent);
  outline-offset: 2px;
}

/* Documentation section (below the tool) */
.bk-docs {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--bk-border);
  line-height: 1.65;
  color: var(--bk-text-secondary);
}

.bk-docs .bk-docs-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--bk-accent);
  margin-bottom: 1.5rem;
}

.bk-docs a {
  color: var(--bk-accent);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.bk-docs a:hover {
  text-decoration-thickness: 2px;
}

.bk-docs a:focus-visible {
  outline: 2px solid var(--bk-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Scrollable code blocks and tables are focusable for keyboard scrolling */
.bk-docs-code:focus-visible,
.bk-docs-table-wrapper:focus-visible {
  outline: 2px solid var(--bk-accent);
  outline-offset: 2px;
}

.bk-docs strong {
  color: var(--bk-text);
}

.bk-docs-toc {
  background: var(--bk-surface);
  border: 1px solid var(--bk-border);
  border-left: 3px solid var(--bk-accent);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  margin-bottom: 2rem;
}

.bk-docs-toc .bk-docs-toc-title {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--bk-text-muted);
  margin-bottom: 0.5rem;
}

.bk-docs-toc ul {
  margin: 0;
  padding-left: 1.2rem;
}

.bk-docs-toc li {
  margin-bottom: 0.25rem;
}

.bk-docs-card {
  background: var(--bk-surface);
  border: 1px solid var(--bk-border);
  border-radius: 10px;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--bk-shadow);
  scroll-margin-top: 5rem;
}

.bk-docs-card h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--bk-text);
  margin-bottom: 1rem;
}

.bk-docs-card h3 i {
  color: var(--bk-accent);
}

.bk-docs-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--bk-text);
  margin: 1.5rem 0 0.5rem;
}

.bk-docs-card p {
  font-size: 0.95rem;
  color: var(--bk-text-secondary);
  margin-bottom: 1rem;
}

.bk-docs-steps,
.bk-docs-list {
  margin: 0 0 1rem 1.3rem;
  color: var(--bk-text-secondary);
}

.bk-docs-steps li,
.bk-docs-list li {
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
}

.bk-docs-steps li p {
  margin-bottom: 0.5rem;
}

.bk-docs-list li::marker {
  color: var(--bk-accent);
}

.bk-docs-code {
  margin: 0 0 1rem;
  padding: 0.9rem 1rem;
  background: var(--bk-code-bg);
  border: 1px solid var(--bk-code-border);
  border-radius: 6px;
  color: var(--bk-code-text);
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
}

.bk-docs-code code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  white-space: pre;
}

/* Confidence levels definition list */
.bk-docs-definitions {
  display: grid;
  gap: 0.75rem;
  margin: 0 0 1rem;
}

.bk-docs-definitions > div {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bk-surface-inset);
  border: 1px solid var(--bk-border);
  border-radius: 6px;
}

.bk-docs-definitions dt {
  flex: 0 0 5.5rem;
  margin: 0;
}

.bk-docs-definitions dt .warning-badge {
  display: inline-block;
  min-width: 5rem;
  text-align: center;
}

.bk-docs-definitions dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--bk-text-secondary);
}

/* Scoring tables */
.bk-docs-table-wrapper {
  overflow-x: auto;
  margin-bottom: 1.25rem;
}

.bk-docs-table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
  border: 1px solid var(--bk-border);
  font-size: 0.92rem;
  margin: 0;
}

.bk-docs-table caption {
  text-align: left;
  font-weight: 600;
  color: var(--bk-text);
  padding: 0 0 0.5rem;
}

.bk-docs-table thead,
.bk-docs-table tbody,
.bk-docs-table tr,
.bk-docs-table tbody tr:nth-child(even) {
  background: transparent;
  color: var(--bk-text);
}

.bk-docs-table th,
.bk-docs-table td {
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid var(--bk-border);
  text-align: left;
  color: var(--bk-text);
}

.bk-docs-table thead th {
  background: var(--bk-surface-hover);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--bk-text-secondary);
}

/* Vulnerability cards */
.bk-docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.bk-docs-vuln {
  padding: 1rem 1.1rem;
  background: var(--bk-surface-inset);
  border: 1px solid var(--bk-border);
  border-top: 3px solid var(--bk-accent);
  border-radius: 6px;
}

.bk-docs-card .bk-docs-vuln h4 {
  margin-top: 0;
}

.bk-docs-card .bk-docs-vuln p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

/* FAQ */
.bk-faq {
  display: grid;
  gap: 0.75rem;
}

.bk-faq-item {
  padding: 1rem 1.2rem;
  background: var(--bk-surface-inset);
  border: 1px solid var(--bk-border);
  border-left: 3px solid var(--bk-accent);
  border-radius: 6px;
}

.bk-docs-card .bk-faq-item h4 {
  margin: 0 0 0.4rem;
}

.bk-docs-card .bk-faq-item p {
  margin-bottom: 0;
}

/* Reduced Motion Handling */
@media (prefers-reduced-motion: reduce) {
  .dropzone-container:hover, .summary-card, .warning-item, .score-ring-val, .tab-panel,
  .sample-btn {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }
}

/* Responsive adjust */
@media screen and (max-width: 768px) {
  .tool-header h1 {
    font-size: 2.2rem;
  }

  .summary-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }

  .score-card {
    grid-column: span 1;
  }

  .warning-summary-row {
    flex-wrap: wrap;
    padding: 1rem;
  }

  .warning-actions {
    width: 100%;
    justify-content: space-between;
    margin-top: 0.5rem;
    padding-left: 1.3rem;
  }

  .bk-docs-card {
    padding: 1.25rem;
  }

  .bk-docs-definitions > div {
    flex-direction: column;
    gap: 0.5rem;
  }

  .bk-docs-definitions dt {
    flex-basis: auto;
  }
}