/* ==========================================================================
   THREATVECTOR — Editorial Publication Design System
   Color Palette: Cyber Ember & Obsidian Basalt (Zero Blue, Red-Team / Defense Journal)
   Full Responsive & High-Legibility Typography
   ========================================================================== */

:root {
  /* DARK THEME (Cyber Ember & Obsidian Basalt - NO BLUE) */
  --bg-main: #090b0f;
  --bg-surface: #11141b;
  --bg-card: #151922;
  --bg-card-hover: #1c212e;
  --bg-subtle: #0d0f15;
  --bg-input: #0d1017;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.16);
  --border-accent: #ff6b2c;

  --text-primary: #f8fafc;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-inverse: #090b0f;

  /* Brand Accents: Ember Orange, Amber Gold, Signal Crimson, Emerald Jade */
  --accent-primary: #ff6b2c;
  --accent-primary-hover: #ff5214;
  --accent-primary-subtle: rgba(255, 107, 44, 0.14);
  --accent-primary-glow: rgba(255, 107, 44, 0.35);

  --accent-gold: #f59e0b;
  --accent-gold-subtle: rgba(245, 158, 11, 0.14);

  --accent-critical: #ff2a55;
  --accent-critical-subtle: rgba(255, 42, 85, 0.15);

  --accent-high: #f97316;
  --accent-high-subtle: rgba(249, 115, 22, 0.15);

  --accent-medium: #10b981;
  --accent-medium-subtle: rgba(16, 185, 129, 0.15);

  --accent-mitre: #c084fc;
  --accent-mitre-subtle: rgba(192, 132, 252, 0.15);

  --code-bg: #07080c;
  --code-border: #1f2533;
  --code-text: #e5e7eb;

  /* Typography Stacks */
  --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Menlo, Consolas, monospace;

  /* Elevation Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 14px -2px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 12px 32px -4px rgba(0, 0, 0, 0.55);
  --shadow-xl: 0 24px 60px -12px rgba(0, 0, 0, 0.75);

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
}

[data-theme="light"] {
  /* LIGHT THEME (Editorial Newsprint / Warm Sand - NO BLUE) */
  --bg-main: #fcfbfa;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f7f5f1;
  --bg-subtle: #f4f1eb;
  --bg-input: #f4f1eb;

  --border-subtle: #e5e1d8;
  --border-medium: #d4cebe;
  --border-accent: #ea580c;

  --text-primary: #18181b;
  --text-secondary: #52525b;
  --text-muted: #71717a;
  --text-inverse: #ffffff;

  --accent-primary: #ea580c;
  --accent-primary-hover: #c2410c;
  --accent-primary-subtle: rgba(234, 88, 12, 0.1);
  --accent-primary-glow: rgba(234, 88, 12, 0.25);

  --accent-gold: #d97706;
  --accent-gold-subtle: rgba(217, 119, 6, 0.1);

  --accent-critical: #dc2626;
  --accent-critical-subtle: rgba(220, 38, 38, 0.1);

  --accent-high: #ea580c;
  --accent-high-subtle: rgba(234, 88, 12, 0.1);

  --accent-medium: #059669;
  --accent-medium-subtle: rgba(5, 150, 105, 0.1);

  --accent-mitre: #7c3aed;
  --accent-mitre-subtle: rgba(124, 58, 237, 0.1);

  --code-bg: #1c1917;
  --code-border: #44403c;
  --code-text: #fafaf9;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 12px 28px -4px rgba(0, 0, 0, 0.09);
  --shadow-xl: 0 24px 48px -12px rgba(0, 0, 0, 0.14);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
  padding-bottom: 72px; /* Breathing room for mobile dock */
}

@media (min-width: 769px) {
  body {
    padding-bottom: 0;
  }
}

/* Subtle atmosphere background */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% -15%, rgba(255, 107, 44, 0.06) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.app-container {
  position: relative;
  z-index: 1;
  max-width: 1380px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (max-width: 640px) {
  .app-container {
    padding: 0 1rem;
  }
}

/* ==========================================================================
   Journal Masthead Bar
   ========================================================================== */
.journal-masthead {
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  padding: 0.4rem 0;
  letter-spacing: 0.04em;
}

.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

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

.masthead-sep {
  color: var(--border-medium);
}

.masthead-date {
  color: var(--text-secondary);
  font-weight: 500;
}

.masthead-edition {
  color: var(--accent-primary);
  font-weight: 700;
}

.masthead-standards {
  font-size: 0.7rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .masthead-standards {
    display: none;
  }
}

/* ==========================================================================
   Site Header & Navbar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(17, 20, 27, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
}

[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.94);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1rem;
}

/* Logo Locochón */
.logo-area {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

.logo-icon-locochon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 2px 8px rgba(255, 107, 44, 0.3));
}

.logo-icon-locochon:hover {
  transform: rotate(-4deg) scale(1.08);
  filter: drop-shadow(0 0 14px rgba(255, 107, 44, 0.65));
}

.locochon-svg {
  width: 100%;
  height: 100%;
  display: block;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-brand {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 1.28rem;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.1;
}

.logo-brand-accent {
  background: linear-gradient(135deg, #ff6b2c, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-tag {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.15rem;
}

/* Header Navigation Desktop */
.header-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

@media (max-width: 960px) {
  .header-nav {
    display: none;
  }
}

/* Nav Link with Highlight Active State */
.nav-link {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  cursor: pointer;
  font-family: var(--font-sans);
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
  border-color: var(--border-subtle);
}

/* Clear Active Navbar State */
.nav-link.active {
  color: #ffffff;
  background: var(--accent-primary-subtle);
  border-color: rgba(255, 107, 44, 0.45);
  font-weight: 700;
  box-shadow: 0 0 14px rgba(255, 107, 44, 0.25);
}

.nav-link.active svg {
  color: var(--accent-primary);
}

.nav-active-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
  display: none;
  box-shadow: 0 0 8px var(--accent-primary);
}

.nav-link.active .nav-active-dot {
  display: inline-block;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.search-trigger {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.95rem;
  color: var(--text-muted);
  font-size: 0.84rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
}

@media (max-width: 640px) {
  .search-trigger span:not(.kbd-shortcut) {
    display: none;
  }
  .search-trigger {
    padding: 0.45rem 0.65rem;
  }
}

.search-trigger:hover {
  border-color: var(--border-medium);
  color: var(--text-secondary);
  background: var(--bg-card-hover);
}

.kbd-shortcut {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-xs);
  color: var(--text-muted);
}

[data-theme="light"] .kbd-shortcut {
  background: #e5e1d8;
}

.btn-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

/* ==========================================================================
   Editorial Hero Section
   ========================================================================== */
.journal-hero {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(255, 107, 44, 0.04) 0%, transparent 100%);
}

.hero-kicker-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.kicker-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-primary);
  background: var(--accent-primary-subtle);
  border: 1px solid rgba(255, 107, 44, 0.3);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.kicker-text {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.journal-main-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1rem;
  max-width: 950px;
}

.journal-main-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.72;
  max-width: 850px;
  margin-bottom: 1.75rem;
}

.journal-metrics-ribbon {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.4rem;
  gap: 1.5rem;
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}

@media (max-width: 640px) {
  .journal-metrics-ribbon {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 1rem;
  }
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  line-height: 1;
}

.metric-desc {
  font-size: 0.74rem;
  color: var(--text-muted);
  font-weight: 500;
}

.metric-divider {
  width: 1px;
  height: 32px;
  background: var(--border-subtle);
}

@media (max-width: 640px) {
  .metric-divider {
    display: none;
  }
}

/* ==========================================================================
   Navigation View Bar (Secondary Tabs)
   ========================================================================== */
.view-navigation-bar {
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.nav-bar-inner {
  display: flex;
  align-items: center;
  padding: 0.65rem 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.view-tabs {
  display: inline-flex;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.25rem;
  gap: 0.25rem;
  white-space: nowrap;
}

.view-tab-btn {
  background: transparent;
  border: none;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all 0.2s ease;
  font-family: var(--font-sans);
}

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

.view-tab-btn.active {
  background: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--accent-primary-glow);
  font-weight: 700;
}

/* ==========================================================================
   Blog Layout (Magazine Two-Column Architecture)
   ========================================================================== */
.blog-container {
  padding-top: 2rem;
}

/* Featured Lead Story (Artículo de Portada) */
.featured-dossier-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: all 0.25s ease;
  cursor: pointer;
}

@media (max-width: 640px) {
  .featured-dossier-card {
    padding: 1.4rem;
  }
}

.featured-dossier-card:hover {
  border-color: rgba(255, 107, 44, 0.4);
  box-shadow: 0 6px 20px -2px rgba(255, 107, 44, 0.15);
}

.featured-dossier-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-gold));
}

.featured-kicker-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.featured-badge-lead {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-primary);
  background: var(--accent-primary-subtle);
  border: 1px solid rgba(255, 107, 44, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.featured-meta-tags {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.featured-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.2vw, 2.35rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.featured-subtitle {
  font-size: 1rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 1.15rem;
}

.featured-summary {
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-width: 920px;
}

.featured-takeaways {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.4rem;
  margin-bottom: 1.75rem;
}

.takeaways-heading {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.6rem;
}

.takeaways-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.takeaways-item {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  line-height: 1.5;
}

.takeaways-bullet {
  color: var(--accent-primary);
  font-weight: bold;
}

.featured-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.author-byline {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  font-family: var(--font-sans);
}

.author-details {
  display: flex;
  flex-direction: column;
}

.author-name-text {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}

.author-date-text {
  font-size: 0.74rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.btn-dossier-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-primary);
  color: #ffffff;
  font-size: 0.86rem;
  font-weight: 600;
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px var(--accent-primary-glow);
}

.btn-dossier-cta:hover {
  background: var(--accent-primary-hover);
  transform: translateX(2px);
}

/* Category Filter Header */
.category-filter-header {
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
}

.filter-pills-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.75rem;
  scrollbar-width: thin;
}

.filter-pill {
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.95rem;
  border-radius: 9999px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  font-family: var(--font-sans);
}

.filter-pill:hover {
  border-color: var(--border-medium);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.filter-pill.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 1px 6px var(--accent-primary-glow);
  font-weight: 700;
}

.filter-feedback-text {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 0.35rem;
}

/* Magazine Two-Column Layout */
.editorial-magazine-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 2.25rem;
  align-items: start;
  padding-bottom: 4rem;
}

@media (max-width: 1040px) {
  .editorial-magazine-layout {
    grid-template-columns: 1fr;
  }
}

.editorial-content-stream {
  min-width: 0;
}

/* Articles Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.5rem;
}

@media (max-width: 640px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
}

/* Article Card (Editorial Journal Style) */
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.22s ease-out;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 44, 0.35);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-md);
}

.card-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
  gap: 0.5rem;
}

.card-badges {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-mitre {
  background: var(--accent-mitre-subtle);
  color: var(--accent-mitre);
  border: 1px solid rgba(192, 132, 252, 0.3);
}

.badge-layer {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

[data-theme="light"] .badge-layer {
  background: #f4f1eb;
}

.badge-severity-critica {
  background: var(--accent-critical-subtle);
  color: var(--accent-critical);
  border: 1px solid rgba(255, 42, 85, 0.35);
}

.badge-severity-alta {
  background: var(--accent-high-subtle);
  color: var(--accent-high);
  border: 1px solid rgba(249, 115, 22, 0.35);
}

.badge-severity-media {
  background: var(--accent-medium-subtle);
  color: var(--accent-medium);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.read-time {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.35rem;
}

.card-subtitle {
  font-size: 0.84rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 0.85rem;
}

.card-summary {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.15rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-keypoints {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background: var(--bg-subtle);
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.keypoint-item {
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  line-height: 1.4;
}

.keypoint-dot {
  color: var(--accent-primary);
  font-weight: bold;
}

.card-footer {
  margin-top: auto;
  padding-top: 0.95rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.author-compact {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
}

.author-date {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.btn-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: var(--accent-primary-subtle);
  border: 1px solid rgba(255, 107, 44, 0.25);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  text-decoration: none;
}

.btn-read-more:hover {
  background: var(--accent-primary);
  color: #ffffff;
}

/* ==========================================================================
   Editorial Sidebar / Intelligence Rail
   ========================================================================== */
.editorial-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
}

.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}

.widget-title {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.widget-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
}

.widget-badge.pulse {
  color: var(--accent-primary);
  background: var(--accent-primary-subtle);
  border-color: rgba(255, 107, 44, 0.3);
}

.widget-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 1rem;
}

/* Severity Filter Buttons List */
.severity-filter-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.severity-card-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
  text-align: left;
  font-family: var(--font-sans);
}

.severity-card-btn:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

.severity-card-btn.active {
  border-color: var(--accent-primary);
  background: var(--accent-primary-subtle);
}

.sev-card-info {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.sev-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-all { background: var(--accent-primary); }
.dot-critica { background: var(--accent-critical); }
.dot-alta { background: var(--accent-high); }
.dot-media { background: var(--accent-medium); }

.sev-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
}

.sev-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.06);
  padding: 0.1rem 0.45rem;
  border-radius: 9999px;
}

[data-theme="light"] .sev-count {
  background: #e5e1d8;
}

/* Lab Teaser Box */
.lab-teaser-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lab-teaser-box:hover {
  border-color: var(--accent-primary);
  background: var(--bg-card-hover);
}

.teaser-sim-nodes {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.teaser-node {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
}

.teaser-node.attacker {
  border-color: var(--accent-critical);
  color: var(--accent-critical);
  background: var(--accent-critical-subtle);
}

.teaser-arrow {
  color: var(--accent-primary);
}

.btn-teaser-action {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-primary);
  display: block;
  text-align: center;
}

/* Sidebar action buttons */
.btn-sidebar-link {
  width: 100%;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
  font-family: var(--font-sans);
}

.btn-sidebar-link:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

.btn-sidebar-link.primary {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
  box-shadow: 0 1px 6px var(--accent-primary-glow);
}

.btn-sidebar-link.primary:hover {
  background: var(--accent-primary-hover);
}

.sidebar-rfc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-rfc-list li a {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  transition: color 0.18s;
  line-height: 1.45;
}

.sidebar-rfc-list li a:hover {
  color: var(--accent-primary);
}

/* ==========================================================================
   Article Deep-Dive Reader Modal
   ========================================================================== */
.reader-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 10, 15, 0.88);
  backdrop-filter: blur(10px);
  z-index: 120;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.reader-modal-backdrop.open {
  display: flex;
}

.reader-modal-window {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 1040px;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  position: relative;
  animation: modal-appear 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 768px) {
  .reader-modal-window {
    max-height: 96vh;
    border-radius: var(--radius-lg);
  }
}

@keyframes modal-appear {
  from { opacity: 0; transform: scale(0.98) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.reading-progress-track {
  width: 100%;
  height: 3px;
  background: var(--bg-subtle);
}

.reading-progress-bar {
  width: 0%;
  height: 100%;
  background: var(--accent-primary);
  transition: width 0.1s ease;
}

.reader-modal-header {
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  gap: 1rem;
}

.reader-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.76rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.reader-breadcrumbs .sep {
  color: var(--border-medium);
}

.reader-active-tag {
  color: var(--accent-primary);
  font-weight: 700;
}

.reader-header-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.action-divider {
  width: 1px;
  height: 22px;
  background: var(--border-subtle);
  margin: 0 0.2rem;
}

.btn-icon.btn-close:hover {
  color: var(--accent-critical);
  border-color: var(--accent-critical);
}

.reader-modal-body {
  overflow-y: auto;
  padding: 2.25rem 3rem;
  scrollbar-width: thin;
}

@media (max-width: 768px) {
  .reader-modal-body {
    padding: 1.25rem;
  }
}

.reader-article-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1.5rem;
}

.reader-badges-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.reader-title {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 3.8vw, 2.65rem);
  font-weight: 700;
  line-height: 1.18;
  color: var(--text-primary);
  margin-bottom: 0.55rem;
}

.reader-subtitle {
  font-size: 1.1rem;
  color: var(--accent-primary);
  margin-bottom: 1.4rem;
  font-weight: 600;
}

.reader-author-box {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.15rem;
}

.author-avatar-badge {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Executive TL;DR box */
.tldr-box {
  background: var(--accent-primary-subtle);
  border-left: 4px solid var(--accent-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.tldr-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  color: var(--accent-primary);
  font-weight: 700;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.tldr-text {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.65;
}

/* Differences comparison table */
.comparison-container {
  margin: 2rem 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
}

.comparison-header {
  background: var(--bg-subtle);
  padding: 0.85rem 1.25rem;
  font-weight: 700;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.comparison-table th {
  background: var(--bg-input);
  padding: 0.75rem 1rem;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  line-height: 1.55;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table td:first-child {
  font-weight: 700;
  color: var(--text-primary);
  width: 25%;
}

/* Reader Prose Sections */
.article-section {
  margin: 2.25rem 0;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 700;
  margin-bottom: 1.15rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title::before {
  content: "§";
  color: var(--accent-primary);
  font-family: var(--font-serif);
  font-weight: normal;
}

.prose p {
  margin-bottom: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 0.98rem;
}

.prose ul, .prose ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.prose li {
  margin-bottom: 0.45rem;
  line-height: 1.65;
}

.prose strong {
  color: var(--text-primary);
}

/* Code Snippets & Terminal Display */
.code-terminal {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-md);
  margin: 1.35rem 0;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.code-header {
  background: rgba(255, 255, 255, 0.03);
  padding: 0.55rem 1rem;
  border-bottom: 1px solid var(--code-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.dot-red { background: #ff2a55; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.code-copy-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.18s;
}

.code-copy-btn:hover {
  color: var(--accent-primary);
}

.code-terminal pre {
  padding: 1.15rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--code-text);
}

/* Real-world Incident Card */
.case-study-box {
  background: var(--bg-card);
  border: 1px solid rgba(192, 132, 252, 0.25);
  border-left: 4px solid var(--accent-mitre);
  border-radius: var(--radius-md);
  padding: 1.35rem 1.5rem;
  margin: 1.85rem 0;
}

.case-study-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

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

/* Mitigations List */
.mitigation-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.25rem 0;
}

.mitigation-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  transition: border-color 0.2s;
}

.mitigation-card:hover {
  border-color: var(--border-medium);
}

.mitigation-card-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.mitigation-card-title::before {
  content: "✓";
  color: var(--accent-medium);
  font-weight: 900;
}

.mitigation-card-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Reader Modal Footer Navigation */
.reader-article-footer-nav {
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.reader-nav-prev, .reader-nav-next {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.84rem;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
  font-weight: 600;
}

.reader-nav-prev:hover, .reader-nav-next:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

/* ==========================================================================
   Interactive Attack Simulator Section
   ========================================================================== */
.simulator-view {
  padding: 2.5rem 0 4rem;
}

.simulator-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.sim-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  background: var(--bg-surface);
}

.sim-main-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
}

.sim-main-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.sim-selector {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.sim-select-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
}

.sim-select-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.sim-select-btn.active {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
  box-shadow: 0 1px 6px var(--accent-primary-glow);
}

.sim-canvas-area {
  padding: 3rem 2rem;
  background: var(--bg-main);
  position: relative;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.sim-nodes-network {
  display: flex;
  align-items: center;
  justify-content: space-around;
  width: 100%;
  max-width: 920px;
  position: relative;
  margin-bottom: 2.5rem;
  gap: 1rem;
}

@media (max-width: 768px) {
  .sim-nodes-network {
    flex-direction: column;
    gap: 1.5rem;
  }
}

.sim-node {
  background: var(--bg-surface);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  width: 180px;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

.sim-node-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
}

.sim-node-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}

.sim-node-ip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.sim-node.active-attacker {
  border-color: var(--accent-critical);
}
.sim-node.active-attacker .sim-node-icon {
  color: var(--accent-critical);
  background: var(--accent-critical-subtle);
}

.sim-node.poisoned-node {
  border-color: var(--accent-gold);
}

.sim-node.down-node {
  border-color: #64748b;
  opacity: 0.5;
}

.sim-step-explanation {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 2rem;
  max-width: 820px;
  width: 100%;
  text-align: center;
}

.sim-step-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent-primary);
  margin-bottom: 0.35rem;
}

.sim-step-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.sim-controls-bar {
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.sim-step-dots {
  display: flex;
  gap: 0.5rem;
}

.sim-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border-medium);
  cursor: pointer;
  transition: all 0.2s;
}

.sim-dot.active {
  background: var(--accent-primary);
  transform: scale(1.3);
}

.sim-btn-group {
  display: flex;
  gap: 0.5rem;
}

.btn-sim-action {
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
}

.btn-sim-action:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

.btn-sim-action.primary {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
  box-shadow: 0 1px 6px var(--accent-primary-glow);
}

.btn-sim-action.primary:hover {
  background: var(--accent-primary-hover);
}

/* ==========================================================================
   MITRE ATT&CK Matrix Grid View
   ========================================================================== */
.mitre-matrix-view {
  padding: 2.5rem 0 4rem;
}

.mitre-view-intro {
  margin-bottom: 2rem;
}

.mitre-heading {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.mitre-intro-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 850px;
  line-height: 1.6;
}

.mitre-matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.matrix-column {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.matrix-col-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.matrix-col-title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.matrix-col-desc {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.matrix-attack-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.matrix-attack-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.matrix-attack-card:hover {
  border-color: var(--accent-primary);
  background: var(--bg-card-hover);
  transform: translateX(3px);
}

.matrix-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.matrix-attack-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ==========================================================================
   Quiz Section
   ========================================================================== */
.quiz-container {
  max-width: 820px;
  margin: 2.5rem auto 4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

@media (max-width: 640px) {
  .quiz-container {
    padding: 1.4rem;
  }
}

.quiz-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1.5rem;
}

.quiz-question-box {
  margin-bottom: 2rem;
}

.quiz-q-number {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-primary);
  font-weight: 700;
  margin-bottom: 0.45rem;
}

.quiz-q-text {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
}

.quiz-options-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.quiz-option-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-family: var(--font-sans);
}

.quiz-option-btn:hover {
  border-color: var(--border-medium);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.quiz-option-btn.selected {
  border-color: var(--accent-primary);
  background: var(--accent-primary-subtle);
  color: var(--text-primary);
}

.quiz-option-btn.correct {
  border-color: var(--accent-medium);
  background: var(--accent-medium-subtle);
  color: var(--accent-medium);
}

.quiz-option-btn.incorrect {
  border-color: var(--accent-critical);
  background: var(--accent-critical-subtle);
  color: var(--accent-critical);
}

.quiz-feedback-box {
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.88rem;
  line-height: 1.55;
  display: none;
}

.quiz-feedback-box.show {
  display: block;
}

/* ==========================================================================
   Search Modal
   ========================================================================== */
.search-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 10, 15, 0.88);
  backdrop-filter: blur(8px);
  z-index: 130;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 10vh 1rem 1rem;
}

.search-modal-backdrop.open {
  display: flex;
}

.search-modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 640px;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: modal-appear 0.2s ease-out;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  gap: 0.75rem;
}

.search-input-wrap input {
  background: transparent;
  border: none;
  font-size: 1.05rem;
  color: var(--text-primary);
  width: 100%;
  outline: none;
  font-family: var(--font-sans);
}

.search-results-list {
  max-height: 400px;
  overflow-y: auto;
  padding: 0.5rem;
}

.search-item {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: background 0.15s;
}

.search-item:hover {
  background: var(--bg-card-hover);
}

.search-item-info {
  display: flex;
  flex-direction: column;
}

.search-item-title {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.search-item-meta {
  font-size: 0.74rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 5rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 769px) {
  .toast-container {
    bottom: 2rem;
    right: 2rem;
  }
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: var(--shadow-lg);
  animation: toast-in 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Mobile Floating Bottom Navigation Dock (Full Responsive)
   ========================================================================== */
.mobile-bottom-dock {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: rgba(17, 20, 27, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
  display: none;
  align-items: center;
  justify-content: space-around;
  z-index: 80;
  padding: 0 0.5rem;
}

[data-theme="light"] .mobile-bottom-dock {
  background: rgba(255, 255, 255, 0.96);
}

@media (max-width: 960px) {
  .mobile-bottom-dock {
    display: flex;
  }
}

.mobile-dock-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.68rem;
  font-family: var(--font-sans);
  font-weight: 600;
  cursor: pointer;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  flex: 1;
  max-width: 90px;
}

.mobile-dock-btn svg {
  transition: transform 0.2s;
}

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

.mobile-dock-btn.active {
  color: var(--accent-primary);
}

.mobile-dock-btn.active svg {
  transform: scale(1.15);
  color: var(--accent-primary);
}

/* ==========================================================================
   Site Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  padding: 3.5rem 0 2rem;
  margin-top: 4rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.25rem;
  margin-bottom: 2.5rem;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.18s;
  font-size: 0.82rem;
}

.footer-links a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.76rem;
}