/* ==========================================================================
   ENEM 2026 · AUDITORIA MULTIAGENTE & MAPEAMENTO DE GABARITOS
   Editorial Academic Minimalist Design System
   ========================================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Newsreader:ital,opsz,wght@0,6..72,400..700;1,6..72,400..700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Light Mode Palette (Default) */
  --bg-canvas: #fbf9f5;         /* Warm Alabaster / Cream base */
  --bg-surface: #ffffff;        /* Pure card surface */
  --bg-surface-subtle: #f4f1ea; /* Subtle warm panel */
  --bg-surface-hover: #efece4;  /* Hover warm slate */
  
  --border-subtle: #eae6dc;     /* Hairline warm border */
  --border-strong: #d5cfbf;     /* Distinct structural border */
  
  --text-primary: #16171a;      /* Deep ink charcoal */
  --text-secondary: #54575f;    /* Balanced reading body */
  --text-muted: #82858e;        /* Subtle annotations & metadata */
  
  --accent-primary: #b45309;    /* Editorial Warm Ochre / Amber */
  --accent-primary-hover: #92400e;
  --accent-primary-subtle: rgba(180, 83, 9, 0.08);
  
  --accent-secondary: #1e3a8a;  /* Deep Classic Indigo */
  --accent-secondary-subtle: rgba(30, 58, 138, 0.08);
  
  /* Status Semantics */
  --success: #15803d;
  --success-subtle: rgba(21, 128, 61, 0.09);
  --success-border: #86efac;
  
  --danger: #b91c1c;
  --danger-subtle: rgba(185, 28, 28, 0.09);
  --danger-border: #fca5a5;

  --warning: #b45309;
  --warning-subtle: rgba(180, 83, 9, 0.12);
  
  /* Booklet Specific Signatures */
  --caderno-amarelo-bg: #fffbeb;
  --caderno-amarelo-border: #fde68a;
  --caderno-amarelo-text: #b45309;
  --caderno-amarelo-pill: #d97706;

  --caderno-azul-bg: #eff6ff;
  --caderno-azul-border: #bfdbfe;
  --caderno-azul-text: #1d4ed8;
  --caderno-azul-pill: #2563eb;

  --caderno-branco-bg: #f8fafc;
  --caderno-branco-border: #cbd5e1;
  --caderno-branco-text: #475569;
  --caderno-branco-pill: #64748b;

  --caderno-verde-bg: #ecfdf5;
  --caderno-verde-border: #a7f3d0;
  --caderno-verde-text: #065f46;
  --caderno-verde-pill: #10b981;

  /* Typography Stacks */
  --font-serif: 'Newsreader', Georgia, Cambria, serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout and Elevation */
  --max-width: 1320px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 2px rgba(22, 23, 26, 0.04);
  --shadow-md: 0 4px 12px rgba(22, 23, 26, 0.06);
  --shadow-lg: 0 12px 30px rgba(22, 23, 26, 0.08);
  --shadow-sticky: 0 2px 8px rgba(0, 0, 0, 0.04);
  
  --header-height: 64px;
}

/* Dark Mode Tokens (Deep Obsidian Slate) */
[data-theme="dark"] {
  --bg-canvas: #0e1013;         /* Deep Obsidian Slate base */
  --bg-surface: #15181e;        /* Dark surface card */
  --bg-surface-subtle: #1d212a; /* Subtle deep slate panel */
  --bg-surface-hover: #252b36;  /* Elevated slate hover */
  
  --border-subtle: #232731;     /* Hairline deep dark border */
  --border-strong: #363c4a;     /* Distinct charcoal border */
  
  --text-primary: #f3f4f6;      /* Bright paper cream white */
  --text-secondary: #9ca3af;    /* Slate secondary body text */
  --text-muted: #6b7280;        /* Muted metadata */
  
  --accent-primary: #f59e0b;    /* Glowing Warm Amber */
  --accent-primary-hover: #fbbf24;
  --accent-primary-subtle: rgba(245, 158, 11, 0.14);
  
  --accent-secondary: #60a5fa;  /* Sky Cobalt Blue */
  --accent-secondary-subtle: rgba(96, 165, 250, 0.14);
  
  --success: #22c55e;
  --success-subtle: rgba(34, 197, 94, 0.14);
  --success-border: #166534;
  
  --danger: #f87171;
  --danger-subtle: rgba(248, 113, 113, 0.15);
  --danger-border: #991b1b;

  --warning: #f59e0b;
  --warning-subtle: rgba(245, 158, 11, 0.16);
  
  --caderno-amarelo-bg: rgba(245, 158, 11, 0.12);
  --caderno-amarelo-border: rgba(245, 158, 11, 0.3);
  --caderno-amarelo-text: #fcd34d;
  --caderno-amarelo-pill: #fbbf24;

  --caderno-azul-bg: rgba(37, 99, 235, 0.14);
  --caderno-azul-border: rgba(96, 165, 250, 0.3);
  --caderno-azul-text: #93c5fd;
  --caderno-azul-pill: #60a5fa;

  --caderno-branco-bg: rgba(148, 163, 184, 0.12);
  --caderno-branco-border: rgba(148, 163, 184, 0.25);
  --caderno-branco-text: #e2e8f0;
  --caderno-branco-pill: #94a3b8;

  --caderno-verde-bg: rgba(16, 185, 129, 0.14);
  --caderno-verde-border: rgba(52, 211, 153, 0.3);
  --caderno-verde-text: #6ee7b7;
  --caderno-verde-pill: #34d399;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.5);
  --shadow-sticky: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* --- Base & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, select, textarea {
  font-family: inherit;
}

/* --- Container Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* --- Taxonomy Badges & Slugs --- */
.taxonomy-slug {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.6rem;
  font-weight: 600;
}

.taxonomy-slug::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-primary);
}

.section-slug {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-primary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.35rem;
}

/* --- Top Sticky Navigation Bar --- */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(251, 249, 245, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

[data-theme="dark"] .top-nav {
  background-color: rgba(14, 16, 19, 0.88);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-stamp {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background-color: var(--accent-primary-subtle);
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.05rem;
}

.brand-title {
  display: flex;
  flex-direction: column;
}

.brand-main {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-primary);
  background-color: var(--accent-primary-subtle);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-stat-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
  background-color: var(--success-subtle);
  border: 1px solid var(--success-border);
  color: var(--success);
  border-radius: 999px;
  font-weight: 600;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 0 rgba(34, 197, 94, 0.4);
  animation: pulseAnimation 2s infinite;
}

@keyframes pulseAnimation {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.btn-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.btn-theme-toggle:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-strong);
}

/* --- Hero Section --- */
.hero-section {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 80% 20%, var(--accent-primary-subtle) 0%, transparent 60%);
}

.hero-content {
  max-width: 960px;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero-headline span.italicized {
  font-style: italic;
  font-weight: 400;
  color: var(--accent-primary);
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 840px;
}

.hero-lead strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* --- Metric Strip --- */
.metric-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.metric-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.4rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
}

.metric-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--border-subtle);
}

.metric-card.accent-amber::before {
  background-color: var(--accent-primary);
}

.metric-card.accent-emerald::before {
  background-color: var(--success);
}

.metric-card.accent-blue::before {
  background-color: var(--accent-secondary);
}

.metric-card.accent-rose::before {
  background-color: var(--danger);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  margin-bottom: 0.25rem;
}

.metric-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* --- Section Structure --- */
.editorial-section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.015em;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 780px;
  line-height: 1.6;
}

/* ==========================================================================
   Section 01: Gabarito & Cruzamento de Cadernos
   ========================================================================== */

/* Toolbar */
.gabarito-toolbar {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.toolbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Segmented Tabs (Caderno Selector) */
.caderno-selector-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.caderno-selector-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 0.25rem;
}

.segmented-control {
  display: inline-flex;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 3px;
}

.segmented-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.15s ease;
}

.segmented-btn:hover {
  color: var(--text-primary);
}

.segmented-btn.active {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-subtle);
}

.color-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-amarela {
  background-color: #f59e0b;
}

.dot-azul {
  background-color: #3b82f6;
}

.dot-branca {
  background-color: #94a3b8;
  border: 1px solid rgba(0,0,0,0.15);
}

.dot-verde {
  background-color: #10b981;
}

/* View Switcher */
.view-switcher {
  display: inline-flex;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface-subtle);
  padding: 2px;
}

.btn-view-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.btn-view-toggle.active {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* Filters & Search */
.filter-chips {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.chip-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-subtle);
  color: var(--text-secondary);
  transition: all 0.15s ease;
}

.chip-btn:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
}

.chip-btn.active {
  background-color: var(--text-primary);
  color: var(--bg-surface);
  border-color: var(--text-primary);
}

[data-theme="dark"] .chip-btn.active {
  background-color: var(--accent-primary);
  color: #0e1013;
  border-color: var(--accent-primary);
}

.search-box-wrapper {
  position: relative;
  min-width: 280px;
  flex: 1;
  max-width: 440px;
}

.search-input {
  width: 100%;
  padding: 0.55rem 2.2rem 0.55rem 2.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-subtle);
  color: var(--text-primary);
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  background-color: var(--bg-surface);
  box-shadow: 0 0 0 3px var(--accent-primary-subtle);
}

.search-icon {
  position: absolute;
  left: 0.8rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  width: 16px;
  height: 16px;
}

.search-clear-btn {
  position: absolute;
  right: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  padding: 4px;
  display: none;
}

.search-clear-btn.visible {
  display: flex;
}

.results-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Quick Jump Pill Navigation */
.quick-jump-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
  scrollbar-width: thin;
}

.jump-chip {
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all 0.15s ease;
}

.jump-chip:hover {
  background-color: var(--bg-surface-hover);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

/* --- Cards Grid Layout --- */
.questions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 1.5rem;
  align-items: start; /* CRITICAL: prevents cards in same row from stretching when one card expands */
}

.question-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  height: auto;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

.question-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.question-card.card-divergent {
  border-color: var(--danger-border);
  background-color: rgba(185, 28, 28, 0.02);
}

[data-theme="dark"] .question-card.card-divergent {
  border-color: rgba(248, 113, 113, 0.4);
  background-color: rgba(248, 113, 113, 0.04);
}

/* Card Header */
.card-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.card-question-number {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.number-prefix {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.number-val {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
}

.card-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}

.status-badge-consenso {
  background-color: var(--success-subtle);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.status-badge-divergencia {
  background-color: var(--danger-subtle);
  color: var(--danger);
  border: 1px solid var(--danger-border);
  animation: pulseDanger 2s infinite;
}

@keyframes pulseDanger {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.75; }
}

/* Cross-Caderno Mapping Row */
.card-mapping-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.9rem;
  padding: 0.5rem 0.65rem;
  background-color: var(--bg-surface-subtle);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.caderno-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.caderno-tag.tag-amarela {
  background-color: var(--caderno-amarelo-bg);
  border: 1px solid var(--caderno-amarelo-border);
  color: var(--caderno-amarelo-text);
}

.caderno-tag.tag-azul {
  background-color: var(--caderno-azul-bg);
  border: 1px solid var(--caderno-azul-border);
  color: var(--caderno-azul-text);
}

.caderno-tag.tag-branca {
  background-color: var(--caderno-branco-bg);
  border: 1px solid var(--caderno-branco-border);
  color: var(--caderno-branco-text);
}

.caderno-tag.tag-verde {
  background-color: var(--caderno-verde-bg);
  border: 1px solid var(--caderno-verde-border);
  color: var(--caderno-verde-text);
}

.caderno-tag.is-active-booklet {
  box-shadow: 0 0 0 1.5px var(--text-primary);
  font-weight: 700;
}

.tag-discipline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: auto;
}

/* Card Content */
.card-support-source {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 0.6rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-enunciado {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 1.15rem;
}

/* Alternatives List */
.card-alternatives {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.alt-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.45;
  transition: all 0.15s ease;
}

.alt-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background-color: var(--bg-surface-subtle);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--text-primary);
  flex-shrink: 0;
  border: 1px solid var(--border-subtle);
}

.alt-text {
  flex: 1;
}

/* Highlighted Correct Alternative */
.alt-item.alt-correct {
  border-color: var(--success);
  background-color: var(--success-subtle);
  color: var(--text-primary);
  font-weight: 500;
}

.alt-item.alt-correct .alt-letter {
  background-color: var(--success);
  color: #ffffff;
  border-color: var(--success);
}

/* Divergent Option Highlighting */
.alt-item.alt-choice-r1 {
  border-color: #f59e0b;
  background-color: rgba(245, 158, 11, 0.08);
  color: var(--text-primary);
}

.alt-item.alt-choice-r1 .alt-letter {
  background-color: #f59e0b;
  color: #ffffff;
  border-color: #f59e0b;
}

.alt-item.alt-choice-r2 {
  border-color: #3b82f6;
  background-color: rgba(59, 130, 246, 0.08);
  color: var(--text-primary);
}

.alt-item.alt-choice-r2 .alt-letter {
  background-color: #3b82f6;
  color: #ffffff;
  border-color: #3b82f6;
}

.round-tag-indicator {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  margin-left: auto;
  align-self: center;
  text-transform: uppercase;
}

.round-tag-r1 {
  background-color: rgba(245, 158, 11, 0.2);
  color: #b45309;
}

.round-tag-r2 {
  background-color: rgba(59, 130, 246, 0.2);
  color: #1d4ed8;
}

[data-theme="dark"] .round-tag-r1 {
  color: #fcd34d;
}

[data-theme="dark"] .round-tag-r2 {
  color: #93c5fd;
}

/* Expandable Justification Accordion */
.card-justification-drawer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.85rem;
  margin-top: 1rem;
}

.btn-toggle-justification {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-primary);
  padding: 0.4rem 0.2rem;
  transition: color 0.15s ease;
}

.btn-toggle-justification:hover {
  color: var(--accent-primary-hover);
}

.drawer-chevron {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.btn-toggle-justification.open .drawer-chevron {
  transform: rotate(180deg);
}

.justification-content {
  display: none;
  padding-top: 0.75rem;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.justification-content.open {
  display: block;
  animation: fadeInDown 0.2s ease;
}

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

.justification-tabs-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.4rem;
}

.j-tab-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.j-tab-btn.active {
  color: var(--accent-primary);
  background-color: var(--accent-primary-subtle);
}

.j-text-box {
  background-color: var(--bg-surface-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  border: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Matrix Table View (Dense Scan Table)
   ========================================================================== */
.matrix-table-container {
  display: none;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.matrix-table-container.active {
  display: block;
}

.editorial-table-wrapper {
  overflow-x: auto;
}

.editorial-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.editorial-table th {
  background-color: var(--bg-surface-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
}

.editorial-table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: color 0.15s ease;
}

.editorial-table th.sortable:hover {
  color: var(--accent-primary);
}

.editorial-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

.editorial-table tbody tr {
  transition: background-color 0.15s ease;
}

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

.editorial-table tbody tr.row-divergent {
  background-color: rgba(185, 28, 28, 0.04);
}

.table-gabarito-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  background-color: var(--success-subtle);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.table-gabarito-badge.is-divergent {
  background-color: var(--danger-subtle);
  color: var(--danger);
  border-color: var(--danger-border);
}

/* ==========================================================================
   Section 02: Auditoria de Convergência & Deep Dive Q29
   ========================================================================== */
.audit-overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.audit-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.audit-card-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-primary);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.audit-score-large {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.progress-bar-track {
  height: 8px;
  width: 100%;
  background-color: var(--bg-surface-subtle);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 999px;
  background-color: var(--success);
}

.progress-bar-fill.bar-amber {
  background-color: var(--accent-primary);
}

.audit-list {
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.audit-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Dossier Deep-Dive Panel */
.dossier-panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  margin-top: 1.5rem;
  position: relative;
  overflow: hidden;
}

.dossier-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #f59e0b, #dc2626);
}

.dossier-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--danger);
  background-color: var(--danger-subtle);
  border: 1px solid var(--danger-border);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.dossier-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.dossier-prompt-box {
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.dossier-source {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.dossier-enunciado {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Side-by-Side Arguments Clash Grid */
.clash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.clash-card {
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  display: flex;
  flex-direction: column;
}

.clash-card.card-r1 {
  border-color: #f59e0b;
  background-color: rgba(245, 158, 11, 0.03);
}

.clash-card.card-r2 {
  border-color: #3b82f6;
  background-color: rgba(59, 130, 246, 0.03);
}

.clash-agent-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.clash-agent-name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
}

.clash-choice-badge {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 800;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-sm);
}

.choice-r1-badge {
  background-color: #f59e0b;
  color: #ffffff;
}

.choice-r2-badge {
  background-color: #3b82f6;
  color: #ffffff;
}

.clash-headline {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.clash-body {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.dossier-conclusion {
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.conclusion-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.conclusion-text {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* ==========================================================================
   Section 03: Tabela De-Para Amarela ↔ Azul ↔ Branca
   ========================================================================== */
.depara-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.btn-export {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.btn-export:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-strong);
}

.depara-table-wrapper {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Section 04: Arquitetura do Sistema Multiagente
   ========================================================================== */
.pipeline-flow-container {
  margin-bottom: 3rem;
}

.pipeline-diagram {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  position: relative;
}

.pipeline-step-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pipeline-step-card::after {
  content: "→";
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--text-muted);
  z-index: 2;
}

.pipeline-step-card:last-child::after {
  display: none;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-primary);
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.step-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Subagent Grid */
.agents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.agent-spec-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.agent-spec-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-primary);
}

.agent-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}

.agent-id-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-subtle);
  color: var(--accent-primary);
  border: 1px solid var(--border-subtle);
}

.agent-round-pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background-color: var(--accent-primary-subtle);
  color: var(--accent-primary);
}

.agent-model-name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.agent-range-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.agent-specialty {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 0.85rem;
  flex: 1;
}

.agent-footer-stats {
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.agent-agreement {
  color: var(--success);
  font-weight: 700;
}

/* ==========================================================================
   Footer & Academic Metadata
   ========================================================================== */
.site-footer {
  padding: 3rem 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-brand {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* ==========================================================================
   Quick Modal / Slide-over Drawer (For Question Inspector)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(14, 16, 19, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.open {
  display: flex;
  animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  max-width: 760px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  position: relative;
}

.btn-modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-subtle);
}

.btn-modal-close:hover {
  color: var(--text-primary);
  background-color: var(--bg-surface-hover);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 900px) {
  .nav-links {
    display: none; /* Can be toggled or scrolled on smaller screens */
  }

  .questions-grid {
    grid-template-columns: 1fr;
  }

  .pipeline-step-card::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .hero-headline {
    font-size: 1.85rem;
  }

  .metric-strip {
    grid-template-columns: 1fr 1fr;
  }

  .search-box-wrapper {
    min-width: 100%;
  }

  .dossier-panel {
    padding: 1.5rem;
  }
}

/* Print Optimization */
@media print {
  .top-nav, .gabarito-toolbar, .btn-theme-toggle, .btn-export, .search-box-wrapper {
    display: none !important;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .question-card, .matrix-table-container, .depara-table-wrapper {
    break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid #cccccc !important;
  }
}

/* ==========================================================================
   Ultra-Compact Quick Gabarito Sheet (Caixinhas Pequenas 1 2 3 ... / A B C ...)
   ========================================================================== */
.compact-gabarito-wrapper {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
  animation: fadeInDown 0.2s ease;
}

.compact-toolbar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.compact-title-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.compact-controls-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  width: 100%;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

.compact-control-pill-group {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.compact-control-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-right: 0.25rem;
}

.pill-opt-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.pill-opt-btn:hover {
  background-color: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.pill-opt-btn.active {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 1px 3px rgba(180, 83, 9, 0.3);
}

.pill-opt-btn.active .color-dot {
  box-shadow: 0 0 0 1px #ffffff;
}

/* Side-by-side Disciplines Container */
.compact-caixinhas-board {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  justify-content: center;
  align-items: flex-start;
}

.compact-discipline-card {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 0 0 auto;
}

.compact-discipline-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-subtle);
}

.compact-discipline-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.compact-discipline-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

/* ==========================================================================
   Exact Caixinhas Matrix Table
   1 2 3 ...
   A B C ...
   7 8 9 ...
   D E F ...
   ========================================================================== */
.caixinhas-table {
  border-collapse: separate;
  border-spacing: 4px 2px;
  margin: 0 auto;
  width: auto;
}

.c-cell-num {
  width: 38px;
  height: 24px;
  line-height: 22px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  user-select: none;
  box-sizing: border-box;
}

.c-cell-num.empty {
  visibility: hidden;
}

.c-cell-letter {
  width: 38px;
  height: 38px;
  line-height: 35px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1.5px solid var(--border-strong);
  border-radius: 4px;
  cursor: pointer;
  display: block;
  padding: 0;
  transition: all 0.15s ease;
  user-select: none;
  box-sizing: border-box;
}

.c-cell-letter:hover {
  background-color: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(180, 83, 9, 0.28);
}

.c-cell-letter.is-divergent {
  background-color: var(--danger-subtle);
  border-color: var(--danger);
  color: var(--danger);
  font-size: 0.72rem;
  letter-spacing: -0.5px;
}

.c-cell-letter.is-divergent:hover {
  background-color: var(--danger);
  color: #ffffff;
}

.c-cell-letter.empty {
  visibility: hidden;
  pointer-events: none;
}

.c-row-spacer {
  height: 8px;
}

/* Toast Feedback */
.compact-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--text-primary);
  color: var(--bg-canvas);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hover);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}

.compact-toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 680px) {
  .compact-caixinhas-board {
    flex-direction: column;
    align-items: stretch;
  }

  .compact-discipline-card {
    width: 100%;
    overflow-x: auto;
  }

  .c-cell-num {
    width: 32px;
    height: 22px;
    font-size: 0.7rem;
  }

  .c-cell-letter {
    width: 32px;
    height: 34px;
    font-size: 0.95rem;
  }
}