/* ============================================================
   MICROVAULT — DESIGN SYSTEM
   BlackRock-inspired institutional aesthetic
   Primary: red-orange | Secondary: yellow | Workhorse: black/white/gray
   ============================================================ */

   :root {
    /* ========== LIGHT MODE (default) ========== */
    --bg: #ffffff;
    --bg-alt: #fafafa;
    --bg-card: #ffffff;
    --bg-subtle: #f5f5f5;
    --bg-inverse: #0a0a0a;
    --border: #e5e5e5;
    --border-strong: #1d1d1d;
    --text: #1d1d1d;
    --text-secondary: #6d6d6d;
    --text-tertiary: #9d9d9d;
    --text-inverse: #ffffff;
  
    /* Accent colors (BlackRock palette) */
    --accent: #d63426;           /* BlackRock red-orange — primary accent */
    --accent-hover: #b82a1e;
    --accent-subtle: rgba(214, 52, 38, 0.08);
    --accent-border: rgba(214, 52, 38, 0.2);
  
    --yellow: #f8c400;           /* Secondary accent — warmth, highlights */
    --yellow-hover: #e0b000;
    --yellow-subtle: rgba(248, 196, 0, 0.12);
    --yellow-border: rgba(248, 196, 0, 0.3);
  
    /* Chart palette */
    --chart-primary: #1d1d1d;
    --chart-secondary: #6d6d6d;
    --chart-tertiary: #c0c0c0;
    --chart-accent: #d63426;
    --chart-yellow: #f8c400;
  
    /* Shadows */
    --shadow-subtle: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-cmd: 0 20px 60px rgba(0, 0, 0, 0.16);
  
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  
    /* Spacing scale */
    --s-1: 4px;
    --s-2: 8px;
    --s-3: 12px;
    --s-4: 16px;
    --s-5: 24px;
    --s-6: 32px;
    --s-7: 48px;
    --s-8: 64px;
    --s-9: 96px;
    --s-10: 128px;
  
    /* Type scale */
    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 18px;
    --text-xl: 20px;
    --text-2xl: 24px;
    --text-3xl: 32px;
    --text-4xl: 40px;
    --text-5xl: 56px;
    --text-6xl: 72px;
    --text-hero: 88px;
  }
  
  /* ========== DARK MODE ========== */
  [data-theme="dark"] {
    --bg: #0a0a0a;
    --bg-alt: #111111;
    --bg-card: #141414;
    --bg-subtle: #1a1a1a;
    --bg-inverse: #ffffff;
    --border: #262626;
    --border-strong: #ffffff;
    --text: #f5f5f5;
    --text-secondary: #a0a0a0;
    --text-tertiary: #606060;
    --text-inverse: #0a0a0a;
  
    --accent: #e84839;
    --accent-hover: #ff5545;
    --accent-subtle: rgba(232, 72, 57, 0.12);
    --accent-border: rgba(232, 72, 57, 0.25);
  
    --yellow: #ffd630;
    --yellow-hover: #ffe04a;
    --yellow-subtle: rgba(255, 214, 48, 0.12);
    --yellow-border: rgba(255, 214, 48, 0.3);
  
    --chart-primary: #f5f5f5;
    --chart-secondary: #a0a0a0;
    --chart-tertiary: #404040;
    --chart-accent: #e84839;
    --chart-yellow: #ffd630;
  
    --shadow-subtle: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.6);
    --shadow-cmd: 0 20px 60px rgba(0, 0, 0, 0.8);
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    font-size: var(--text-base);
    line-height: 1.55;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.2s ease, color 0.2s ease;
    font-feature-settings: 'ss01' on, 'cv01' on, 'cv11' on;
    overflow-x: hidden;
  }
  
  /* ============================================================
     SESSION CONTINUITY BANNER
     ============================================================ */
  
  .continuity-banner {
    background: var(--yellow-subtle);
    border-bottom: 1px solid var(--yellow-border);
    padding: var(--s-3) var(--s-6);
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-4);
    font-size: var(--text-sm);
    max-width: 1440px;
    margin: 0 auto;
  }
  
  .continuity-banner.active {
    display: flex;
    animation: slideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  }
  
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .continuity-text {
    color: var(--text);
    display: flex;
    align-items: center;
    gap: var(--s-3);
  }
  
  .continuity-text svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
    flex-shrink: 0;
  }
  
  .continuity-text strong {
    font-weight: 600;
  }
  
  .continuity-actions {
    display: flex;
    gap: var(--s-3);
  }
  
  .continuity-btn {
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 6px 14px;
    border: 1px solid var(--border-strong);
    background: transparent;
    color: var(--text);
    cursor: pointer;
    transition: all 0.15s ease;
  }
  
  .continuity-btn.primary {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
  }
  
  .continuity-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
  }
  
  /* ============================================================
     NAVIGATION
     ============================================================ */
  
  .nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    transition: background-color 0.2s ease, border-color 0.2s ease;
    backdrop-filter: blur(8px);
  }
  
  .nav-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--s-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
  }
  
  .nav-brand {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    text-decoration: none;
    color: var(--text);
    cursor: pointer;
  }
  
  .nav-logo {
    width: 32px;
    height: 32px;
    background: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg);
    font-weight: 800;
    font-size: 14px;
    letter-spacing: -0.02em;
    position: relative;
  }
  
  .nav-logo::after {
    content: '';
    position: absolute;
    bottom: 3px;
    right: 3px;
    width: 4px;
    height: 4px;
    background: var(--yellow);
  }
  
  .nav-brand-text {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
  }
  
  .nav-brand-text span {
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: var(--s-2);
    letter-spacing: 0.1em;
    font-size: 11px;
  }
  
  .nav-links {
    display: flex;
    align-items: center;
    gap: var(--s-6);
  }
  
  .nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.005em;
    transition: color 0.15s ease;
    position: relative;
    cursor: pointer;
    background: none;
    border: none;
    font-family: var(--font-sans);
    padding: 0;
  }
  
  .nav-link:hover {
    color: var(--accent);
  }
  
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -28px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s ease;
  }
  
  .nav-link:hover::after {
    transform: scaleX(1);
  }
  
  .nav-actions {
    display: flex;
    align-items: center;
    gap: var(--s-3);
  }
  
  .cmdk-trigger {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    padding: 8px 12px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 400;
    cursor: pointer;
    transition: all 0.15s ease;
    min-width: 200px;
  }
  
  .cmdk-trigger:hover {
    border-color: var(--text);
    color: var(--text);
  }
  
  .cmdk-trigger svg {
    width: 14px;
    height: 14px;
  }
  
  .cmdk-shortcut {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    padding: 2px 6px;
    letter-spacing: 0;
    color: var(--text-secondary);
  }
  
  .theme-toggle {
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    font-family: var(--font-sans);
  }
  
  .theme-toggle:hover {
    border-color: var(--text);
  }
  
  .theme-toggle svg {
    width: 16px;
    height: 16px;
  }
  
  .theme-toggle .icon-moon { display: none; }
  [data-theme="dark"] .theme-toggle .icon-sun { display: none; }
  [data-theme="dark"] .theme-toggle .icon-moon { display: block; }
  
  .nav-cta {
    padding: 10px 20px;
    background: var(--text);
    color: var(--bg);
    border: none;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: -0.005em;
    cursor: pointer;
    transition: background-color 0.15s ease;
  }
  
  .nav-cta:hover {
    background: var(--accent);
  }
  
  /* ============================================================
     HERO
     ============================================================ */
  
  .hero {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--s-9) var(--s-6) var(--s-10);
    border-bottom: 1px solid var(--border);
    position: relative;
  }
  
  .hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-8);
    align-items: start;
  }
  
  .hero-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: var(--s-5);
    display: flex;
    align-items: center;
    gap: var(--s-3);
  }
  
  .hero-label::before {
    content: '';
    width: 32px;
    height: 1px;
    background: var(--accent);
  }
  
  .hero-title {
    font-size: var(--text-hero);
    font-weight: 800;
    line-height: 0.98;
    letter-spacing: -0.04em;
    color: var(--text);
    margin-bottom: var(--s-6);
  }
  
  .hero-title em {
    font-style: normal;
    color: var(--accent);
    position: relative;
  }
  
  .hero-title em::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 8px;
    width: 100%;
    height: 6px;
    background: var(--yellow);
    z-index: -1;
    opacity: 0.35;
  }
  
  .hero-subtitle {
    font-size: var(--text-xl);
    line-height: 1.5;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: var(--s-7);
    font-weight: 400;
  }
  
  .hero-actions {
    display: flex;
    gap: var(--s-3);
    flex-wrap: wrap;
  }
  
  .btn-primary {
    padding: 16px 32px;
    background: var(--text);
    color: var(--bg);
    border: none;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 500;
    letter-spacing: -0.005em;
    cursor: pointer;
    transition: background-color 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--s-3);
    text-decoration: none;
  }
  
  .btn-primary:hover {
    background: var(--accent);
  }
  
  .btn-primary svg {
    width: 16px;
    height: 16px;
    transition: transform 0.15s ease;
  }
  
  .btn-primary:hover svg {
    transform: translateX(4px);
  }
  
  .btn-secondary {
    padding: 16px 32px;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-strong);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 500;
    letter-spacing: -0.005em;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--s-3);
    text-decoration: none;
  }
  
  .btn-secondary:hover {
    background: var(--text);
    color: var(--bg);
  }
  
  /* Hero right panel */
  .hero-panel {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    padding: var(--s-6);
    position: relative;
  }
  
  [data-theme="dark"] .hero-panel {
    background: var(--bg-card);
  }
  
  .hero-panel-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-secondary);
    margin-bottom: var(--s-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .live-dot {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 500;
  }
  
  .live-dot::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }
  
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }
  
  .hero-panel-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-5);
    margin-bottom: var(--s-6);
  }
  
  .stat {
    border-top: 1px solid var(--border);
    padding-top: var(--s-4);
  }
  
  .stat-value {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: var(--s-2);
    color: var(--text);
  }
  
  .stat-label {
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
  
  .hero-chart {
    height: 180px;
    margin-top: var(--s-5);
    position: relative;
    border-top: 1px solid var(--border);
    padding-top: var(--s-5);
  }
  
  .hero-chart-label {
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--s-3);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .hero-chart-legend {
    display: flex;
    gap: var(--s-3);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0;
  }
  
  .legend-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }
  
  .legend-dot {
    width: 8px;
    height: 2px;
  }
  
  .hero-chart svg {
    width: 100%;
    height: 140px;
  }
  
  /* ============================================================
     QUOTE PILLAR
     ============================================================ */
  
  .quote-pillar {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--s-9) var(--s-6);
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    position: relative;
    overflow: hidden;
  }
  
  .quote-pillar::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 280px;
    color: var(--yellow);
    opacity: 0.08;
    font-family: Georgia, serif;
    font-weight: 700;
    line-height: 1;
    pointer-events: none;
  }
  
  .quote-inner {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
    position: relative;
  }
  
  .quote-text {
    font-size: var(--text-3xl);
    font-weight: 500;
    line-height: 1.35;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: var(--s-6);
    font-style: italic;
  }
  
  .quote-attribution {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--s-3);
    font-size: var(--text-sm);
    color: var(--text-secondary);
  }
  
  .quote-attribution::before,
  .quote-attribution::after {
    content: '';
    width: 32px;
    height: 1px;
    background: var(--accent);
  }
  
  .quote-name {
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.005em;
  }
  
  .quote-source {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
  
  /* ============================================================
     SECTION STRUCTURE
     ============================================================ */
  
  .section {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--s-9) var(--s-6);
    border-bottom: 1px solid var(--border);
  }
  
  .section-header {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--s-8);
    margin-bottom: var(--s-8);
    padding-bottom: var(--s-6);
    border-bottom: 1px solid var(--border);
  }
  
  .section-label {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0;
    text-transform: uppercase;
    display: flex;
    align-items: baseline;
    gap: var(--s-3);
  }
  
  .section-label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--accent);
    display: inline-block;
  }
  
  .section-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    line-height: 1.0;
    letter-spacing: -0.035em;
    color: var(--text);
    margin-bottom: var(--s-4);
  }
  
  .section-description {
    font-size: var(--text-lg);
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 640px;
    font-weight: 400;
  }
  
  /* ============================================================
     MODULES GRID
     ============================================================ */
  
  .modules-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  
  .module-card {
    background: var(--bg);
    padding: var(--s-7);
    cursor: pointer;
    transition: background-color 0.2s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 320px;
    text-decoration: none;
    color: var(--text);
    border: none;
    font-family: var(--font-sans);
    text-align: left;
    width: 100%;
  }
  
  .module-card:hover {
    background: var(--bg-alt);
  }
  
  .module-card.primer {
    background: var(--bg-alt);
    grid-column: 1 / -1;
    min-height: 200px;
  }
  
  [data-theme="dark"] .module-card.primer {
    background: var(--bg-card);
  }
  
  .module-card.primer:hover {
    background: var(--bg-subtle);
  }
  
  .module-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--s-7);
    width: 100%;
  }
  
  .module-number {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0;
  }
  
  .module-card.primer .module-number {
    color: var(--yellow-hover);
  }
  
  .module-tag {
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    border: 1px solid var(--border);
  }
  
  .module-card.primer .module-tag {
    background: var(--yellow);
    border-color: var(--yellow);
    color: #0a0a0a;
    font-weight: 600;
  }
  
  .module-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--s-4);
    color: var(--text);
  }
  
  .module-card.primer .module-title {
    font-size: var(--text-3xl);
  }
  
  .module-description {
    font-size: var(--text-base);
    line-height: 1.55;
    color: var(--text-secondary);
    margin-bottom: auto;
    padding-bottom: var(--s-5);
  }
  
  .module-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--s-5);
    border-top: 1px solid var(--border);
    margin-top: auto;
    width: 100%;
  }
  
  .module-topics {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  .module-arrow {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    transition: color 0.15s ease, transform 0.15s ease;
  }
  
  .module-card:hover .module-arrow {
    color: var(--accent);
    transform: translateX(4px);
  }
  
  /* ============================================================
     TOOLS GRID
     ============================================================ */
  
  .tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
  }
  
  .tool-card {
    background: var(--bg);
    padding: var(--s-6);
    display: flex;
    flex-direction: column;
    min-height: 240px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    text-decoration: none;
    color: var(--text);
    border: none;
    font-family: var(--font-sans);
    text-align: left;
    width: 100%;
  }
  
  .tool-card:hover {
    background: var(--bg-alt);
  }
  
  .tool-icon {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--s-5);
    color: var(--text);
    transition: all 0.15s ease;
  }
  
  .tool-card:hover .tool-icon {
    background: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
  }
  
  .tool-card.tool-aladdin:hover .tool-icon {
    background: var(--yellow);
    border-color: var(--yellow);
    color: #0a0a0a;
  }
  
  .tool-icon svg {
    width: 20px;
    height: 20px;
  }
  
  .tool-title {
    font-size: var(--text-xl);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin-bottom: var(--s-3);
    color: var(--text);
    display: flex;
    align-items: center;
    gap: var(--s-2);
  }
  
  .tool-title .aladdin-badge {
    font-family: var(--font-mono);
    font-size: 9px;
    background: var(--yellow);
    color: #0a0a0a;
    padding: 2px 6px;
    font-weight: 600;
    letter-spacing: 0.1em;
  }
  
  .tool-description {
    font-size: var(--text-sm);
    line-height: 1.55;
    color: var(--text-secondary);
    margin-bottom: auto;
  }
  
  .tool-link {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-top: var(--s-5);
    display: flex;
    align-items: center;
    gap: var(--s-2);
  }
  
  .tool-card.tool-aladdin .tool-link {
    color: var(--yellow-hover);
  }
  
  /* ============================================================
     ALADDIN INTRODUCTION SECTION
     ============================================================ */
  
  .aladdin-intro {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--s-9) var(--s-6);
    border-bottom: 1px solid var(--border);
    /* Always dark — the Aladdin terminal aesthetic is theme-independent */
    background: #0a0a0a;
    color: #ffffff;
    position: relative;
    overflow: hidden;
  }
  
  .aladdin-intro::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: radial-gradient(circle at 70% 50%, var(--yellow-subtle), transparent 60%);
    pointer-events: none;
  }
  
  .aladdin-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-8);
    align-items: center;
    position: relative;
    z-index: 1;
  }
  
  .aladdin-label {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--yellow);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--s-5);
    display: flex;
    align-items: center;
    gap: var(--s-3);
  }
  
  .aladdin-label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--yellow);
  }
  
  .aladdin-heading {
    font-size: var(--text-5xl);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: #ffffff;
    margin-bottom: var(--s-5);
  }
  
  .aladdin-heading em {
    font-style: normal;
    color: var(--yellow);
  }
  
  .aladdin-body {
    font-size: var(--text-lg);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: var(--s-6);
    max-width: 520px;
  }
  
  /* Capabilities - always white since Aladdin section is always dark */
  .aladdin-cap {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.85);
  }
  
  .aladdin-capabilities {
    display: grid;
    gap: var(--s-3);
    margin-bottom: var(--s-6);
  }
  
  .aladdin-cap-bullet {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--yellow);
    letter-spacing: 0.1em;
  }
  
  .btn-aladdin {
    padding: 16px 32px;
    background: var(--yellow);
    color: #0a0a0a;
    border: none;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 600;
    letter-spacing: -0.005em;
    cursor: pointer;
    transition: background-color 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--s-3);
    text-decoration: none;
  }
  
  .btn-aladdin:hover {
    background: var(--yellow-hover);
  }
  
  .btn-aladdin svg {
    width: 16px;
    height: 16px;
    transition: transform 0.15s ease;
  }
  
  .btn-aladdin:hover svg {
    transform: translateX(4px);
  }
  
  .aladdin-terminal {
    background: #0f0f0f;
    border: 1px solid #262626;
    padding: var(--s-5);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: #f5f5f5;
    position: relative;
    min-height: 340px;
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
  }
  
  [data-theme="dark"] .aladdin-terminal {
    background: #000000;
  }
  
  .terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--s-3);
    border-bottom: 1px solid #262626;
    margin-bottom: var(--s-3);
    font-size: 11px;
    color: #606060;
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }
  
  .terminal-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--yellow);
  }
  
  .terminal-status::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--yellow);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }
  
  .terminal-line {
    display: flex;
    gap: var(--s-3);
    line-height: 1.5;
  }
  
  .terminal-prompt {
    color: var(--accent);
    flex-shrink: 0;
  }
  
  .terminal-user {
    color: #a0a0a0;
  }
  
  .terminal-ai {
    color: #f5f5f5;
  }
  
  .terminal-ai strong {
    color: var(--yellow);
    font-weight: 600;
  }
  
  .terminal-cursor {
    display: inline-block;
    width: 8px;
    height: 14px;
    background: var(--yellow);
    vertical-align: text-bottom;
    animation: blink 1s infinite;
  }
  
  @keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
  }
  
  /* ============================================================
     PHILOSOPHY SECTION
     ============================================================ */
  
  .philosophy {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--s-9) var(--s-6);
    border-bottom: 1px solid var(--border);
    background: var(--bg-alt);
  }
  
  .philosophy-inner {
    max-width: 960px;
    margin: 0 auto;
  }
  
  .philosophy-label {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--s-5);
    display: flex;
    align-items: center;
    gap: var(--s-3);
  }
  
  .philosophy-label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--accent);
  }
  
  .philosophy-heading {
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: var(--s-7);
    max-width: 800px;
  }
  
  .philosophy-body {
    font-size: var(--text-lg);
    line-height: 1.7;
    color: var(--text);
    max-width: 720px;
  }
  
  .philosophy-body p {
    margin-bottom: var(--s-5);
  }
  
  .philosophy-body p:last-child { margin-bottom: 0; }
  
  .philosophy-body strong {
    font-weight: 600;
    color: var(--text);
    background: var(--yellow-subtle);
    padding: 2px 6px;
  }
  
  .philosophy-signature {
    margin-top: var(--s-7);
    padding-top: var(--s-5);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: baseline;
  }
  
  .signature-name {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.01em;
  }
  
  .signature-title {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
  
  /* ============================================================
     COMMAND BAR (Cmd+K)
     ============================================================ */
  
  .cmdk-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    animation: fadeIn 0.15s ease;
  }
  
  .cmdk-overlay.active { display: flex; }
  
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  
  .cmdk-modal {
    width: 100%;
    max-width: 640px;
    background: var(--bg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-cmd);
    overflow: hidden;
    animation: cmdkSlide 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  }
  
  @keyframes cmdkSlide {
    from { opacity: 0; transform: translateY(-8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }
  
  .cmdk-input-row {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    padding: var(--s-5);
    border-bottom: 1px solid var(--border);
  }
  
  .cmdk-input-row svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
    flex-shrink: 0;
  }
  
  .cmdk-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-family: var(--font-sans);
    font-size: var(--text-lg);
    color: var(--text);
    padding: 0;
    letter-spacing: -0.01em;
  }
  
  .cmdk-input::placeholder {
    color: var(--text-tertiary);
  }
  
  .cmdk-kbd {
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    padding: 2px 6px;
    color: var(--text-secondary);
  }
  
  .cmdk-results {
    max-height: 400px;
    overflow-y: auto;
    padding: var(--s-2) 0;
  }
  
  .cmdk-group-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--s-3) var(--s-5) var(--s-1);
  }
  
  .cmdk-item {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    padding: var(--s-3) var(--s-5);
    cursor: pointer;
    transition: background-color 0.1s ease;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    color: var(--text);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
  }
  
  .cmdk-item:hover,
  .cmdk-item.selected {
    background: var(--bg-alt);
  }
  
  .cmdk-item-icon {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    flex-shrink: 0;
  }
  
  .cmdk-item-icon svg {
    width: 16px;
    height: 16px;
  }
  
  .cmdk-item-text {
    flex: 1;
  }
  
  .cmdk-item-label {
    color: var(--text);
    font-weight: 500;
  }
  
  .cmdk-item-desc {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-top: 2px;
  }
  
  .cmdk-item-shortcut {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    letter-spacing: 0;
  }
  
  .cmdk-item.selected .cmdk-item-icon,
  .cmdk-item:hover .cmdk-item-icon {
    color: var(--accent);
  }
  
  .cmdk-empty {
    padding: var(--s-7) var(--s-5);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--text-sm);
  }
  
  .cmdk-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--s-3) var(--s-5);
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
  
  .cmdk-footer-left, .cmdk-footer-right {
    display: flex;
    align-items: center;
    gap: var(--s-3);
  }
  
  .cmdk-footer .cmdk-kbd {
    font-size: 9px;
  }
  
  /* ============================================================
     FOOTER
     ============================================================ */
  
  .footer {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--s-8) var(--s-6) var(--s-6);
  }
  
  .footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--s-7);
    margin-bottom: var(--s-8);
    padding-bottom: var(--s-7);
    border-bottom: 1px solid var(--border);
  }
  
  .footer-brand {
    max-width: 380px;
  }
  
  .footer-logo {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    margin-bottom: var(--s-4);
  }
  
  .footer-logo-mark {
    width: 32px;
    height: 32px;
    background: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg);
    font-weight: 800;
    font-size: 14px;
    position: relative;
  }
  
  .footer-logo-mark::after {
    content: '';
    position: absolute;
    bottom: 3px;
    right: 3px;
    width: 4px;
    height: 4px;
    background: var(--yellow);
  }
  
  .footer-tagline {
    font-size: var(--text-sm);
    line-height: 1.55;
    color: var(--text-secondary);
    margin-bottom: var(--s-5);
  }
  
  .footer-col h4 {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text);
    margin-bottom: var(--s-4);
  }
  
  .footer-col ul { list-style: none; }
  .footer-col li { margin-bottom: var(--s-2); }
  
  .footer-col a, .footer-col button {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
    background: none;
    border: none;
    font-family: var(--font-sans);
    cursor: pointer;
    padding: 0;
    text-align: left;
  }
  
  .footer-col a:hover, .footer-col button:hover {
    color: var(--accent);
  }
  
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    gap: var(--s-3);
    flex-wrap: wrap;
  }
  
  .footer-bottom-left {
    display: flex;
    align-items: center;
    gap: var(--s-4);
  }
  
  .footer-signature {
    color: var(--text);
    font-weight: 500;
  }
  
  /* ============================================================
     ANIMATIONS
     ============================================================ */
  
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .hero-label { animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards; animation-delay: 0.05s; }
  .hero-title { animation: fadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) backwards; animation-delay: 0.1s; }
  .hero-subtitle { animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards; animation-delay: 0.2s; }
  .hero-actions { animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards; animation-delay: 0.3s; }
  .hero-panel { animation: fadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) backwards; animation-delay: 0.25s; }
  
  .ticker-line {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: draw 2s cubic-bezier(0.16, 1, 0.3, 1) 0.5s forwards;
  }
  
  @keyframes draw { to { stroke-dashoffset: 0; } }
  
  /* ============================================================
     RESPONSIVE
     ============================================================ */
  
  @media (max-width: 1024px) {
    .hero-title { font-size: var(--text-6xl); }
    .section-title { font-size: var(--text-4xl); }
    .hero-grid { grid-template-columns: 1fr; gap: var(--s-7); }
    .section-header { grid-template-columns: 1fr; gap: var(--s-4); }
    .tools-grid { grid-template-columns: 1fr 1fr; }
    .aladdin-grid { grid-template-columns: 1fr; gap: var(--s-7); }
    .aladdin-heading { font-size: var(--text-4xl); }
    .quote-text { font-size: var(--text-2xl); }
  }
  
  @media (max-width: 768px) {
    .nav-links, .cmdk-trigger { display: none; }
    .hero-title { font-size: var(--text-5xl); }
    .section-title { font-size: var(--text-3xl); }
    .modules-grid { grid-template-columns: 1fr; }
    .tools-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .hero-panel-stats { grid-template-columns: 1fr 1fr; }
    .section, .hero, .philosophy, .footer, .aladdin-intro, .quote-pillar, .continuity-banner {
      padding-left: var(--s-5);
      padding-right: var(--s-5);
    }
    .nav-inner { padding: 0 var(--s-5); }
    .quote-text { font-size: var(--text-xl); }
    .quote-pillar::before { font-size: 180px; }
    .continuity-banner { flex-direction: column; align-items: flex-start; }
  }
  
  /* ============================================================
     PRINT STYLES (for Print-Ready Study Sheets - v2)
     ============================================================ */
  
  @media print {
    .nav, .footer, .continuity-banner, .quote-pillar, .aladdin-intro, .cmdk-overlay {
      display: none !important;
    }
    body { background: #ffffff; color: #000000; }
    .section { padding: var(--s-5) 0; break-inside: avoid; }
  }
  
  /* ============================================================
     VIEWPORT (overlay container for module/tool views)
     ============================================================ */
  
  .viewport {
    position: fixed;
    inset: 0;
    background: var(--bg);
    z-index: 200;
    overflow-y: auto;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }
  
  .viewport.active {
    opacity: 1;
    pointer-events: auto;
  }
  
  .view-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  .view-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
  }
  
  .view-header.dark {
    background: #0a0a0a;
    border-bottom-color: #262626;
    color: #fff;
  }
  
  .view-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--s-6);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-4);
  }
  
  .view-back {
    display: flex;
    align-items: center;
    gap: var(--s-2);
    background: transparent;
    border: none;
    color: var(--text);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    padding: 6px 10px;
    margin-left: -10px;
    transition: color 0.15s ease;
  }
  
  .view-header.dark .view-back { color: #fff; }
  
  .view-back:hover { color: var(--accent); }
  .view-back svg { width: 16px; height: 16px; }
  
  .view-meta {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: var(--s-2);
  }
  
  .view-header.dark .view-meta { color: #a0a0a0; }
  
  .view-meta-code { color: var(--accent); font-weight: 600; }
  .view-meta-sep { color: var(--text-tertiary); }
  
  .view-header-actions { display: flex; gap: var(--s-2); }
  
  .view-action-btn {
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
  }
  
  .view-header.dark .view-action-btn {
    border-color: #262626;
    color: #fff;
  }
  
  .view-action-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
  }
  
  .view-action-btn svg { width: 16px; height: 16px; }
  
  /* ============================================================
     MODULE VIEW
     ============================================================ */
  
  .module-hero {
    border-bottom: 1px solid var(--border);
    padding: var(--s-9) var(--s-6) var(--s-7);
    background: var(--bg-alt);
  }
  
  .module-hero-inner {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .module-hero-label {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--s-4);
  }
  
  .module-hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.05;
    color: var(--text);
  }
  
  .module-content {
    max-width: 760px;
    margin: 0 auto;
    padding: var(--s-8) var(--s-6);
    width: 100%;
    flex: 1;
  }
  
  .m-section {
    margin-bottom: var(--s-9);
  }
  
  .m-h3 {
    font-size: var(--text-2xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text);
    margin-bottom: var(--s-5);
    padding-top: var(--s-3);
    border-top: 1px solid var(--border);
    padding-top: var(--s-5);
  }
  
  .m-prose {
    font-size: var(--text-lg);
    line-height: 1.7;
    color: var(--text);
  }
  
  .m-prose p { margin-bottom: var(--s-5); }
  .m-prose strong { font-weight: 600; }
  .m-prose em { font-style: italic; }
  .m-prose ul, .m-prose ol {
    padding-left: var(--s-5);
    margin-bottom: var(--s-5);
  }
  .m-prose li { margin-bottom: var(--s-3); }
  .m-prose details {
    border: 1px solid var(--border);
    padding: var(--s-4);
    margin: var(--s-4) 0;
    background: var(--bg-alt);
  }
  .m-prose summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--accent);
  }
  
  /* Aladdin in module */
  .m-aladdin-block {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: var(--s-5);
    background: #0a0a0a;
    color: #fff;
    padding: var(--s-6);
    border: 1px solid #262626;
    margin-bottom: var(--s-7);
  }
  
  .m-aladdin-mark {
    width: 36px;
    height: 36px;
    border: 1px solid var(--yellow);
    color: var(--yellow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
  }
  
  .m-aladdin-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--yellow);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: var(--s-3);
  }
  
  .m-aladdin-block .m-h3 {
    color: #fff;
    border: none;
    padding-top: 0;
    margin-bottom: var(--s-4);
    font-size: var(--text-xl);
  }
  
  .m-aladdin-body {
    color: rgba(255,255,255,0.85);
    font-size: var(--text-base);
    line-height: 1.65;
  }
  
  .m-aladdin-body strong { color: var(--yellow); font-weight: 600; }
  
  /* Numbered lists */
  .m-numbered {
    display: grid;
    gap: var(--s-5);
  }
  
  .m-numbered-item {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: var(--s-5);
    padding: var(--s-5);
    border: 1px solid var(--border);
    background: var(--bg);
  }
  
  .m-numbered-num {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: 500;
    color: var(--accent);
    line-height: 1;
    letter-spacing: -0.02em;
  }
  
  .m-numbered-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--s-2);
    letter-spacing: -0.01em;
  }
  
  .m-numbered-text {
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-secondary);
  }
  
  .m-numbered-text strong { color: var(--text); font-weight: 600; }
  
  /* Case studies */
  .m-case {
    background: var(--bg-alt);
    border-left: 3px solid var(--yellow);
    padding: var(--s-6);
    margin: var(--s-6) 0;
  }
  
  .m-case-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    background: var(--yellow);
    color: #0a0a0a;
    padding: 3px 8px;
    font-weight: 600;
    letter-spacing: 0.12em;
    display: inline-block;
    margin-bottom: var(--s-4);
  }
  
  .m-case-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--s-4);
    letter-spacing: -0.015em;
  }
  
  .m-case-body {
    font-size: var(--text-base);
    line-height: 1.65;
    color: var(--text);
  }
  
  .m-case-body p { margin-bottom: var(--s-4); }
  .m-case-body strong { font-weight: 600; }
  
  /* Formula display */
  .m-formula-section { padding: var(--s-3) 0; }
  
  .m-formula-display {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    padding: var(--s-6);
    text-align: center;
    margin: var(--s-4) 0;
  }
  
  .m-formula-eq {
    font-family: var(--font-mono);
    font-size: var(--text-2xl);
    color: var(--text);
    margin-bottom: var(--s-3);
  }
  
  .m-formula-note {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-style: italic;
  }
  
  /* Traps */
  .m-traps {
    background: var(--accent-subtle);
    border: 1px solid var(--accent-border);
    padding: var(--s-6);
    margin: var(--s-5) 0;
  }
  
  .m-traps .m-h3 {
    border: none;
    padding-top: 0;
    color: var(--accent);
    margin-bottom: var(--s-4);
  }
  
  .m-traps-list { display: grid; gap: var(--s-4); }
  
  .m-trap-item {
    display: grid;
    grid-template-columns: 32px 1fr;
    gap: var(--s-4);
    align-items: start;
  }
  
  .m-trap-icon {
    width: 28px;
    height: 28px;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
  }
  
  .m-trap-title {
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--s-1);
  }
  
  .m-trap-text {
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text);
  }
  
  .m-trap-text strong { font-weight: 700; }
  
  /* Quote in module */
  .m-quote {
    border-left: 3px solid var(--yellow);
    padding: var(--s-5) var(--s-6);
    background: var(--bg-alt);
    font-style: italic;
  }
  
  .m-quote-text {
    font-size: var(--text-xl);
    line-height: 1.5;
    color: var(--text);
    margin-bottom: var(--s-3);
  }
  
  .m-quote-attr {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-style: normal;
  }
  
  /* Comparison tables */
  .m-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    margin: var(--s-4) 0;
  }
  
  .m-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
  }
  
  .m-table th, .m-table td {
    padding: var(--s-3) var(--s-4);
    border-bottom: 1px solid var(--border);
    text-align: left;
  }
  
  .m-table thead th {
    background: var(--bg-alt);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
  }
  
  .m-table tbody th {
    font-weight: 600;
    color: var(--text);
    width: 28%;
  }
  
  .m-table tbody td { color: var(--text-secondary); }
  
  /* Math rendering */
  .math-inline {
    font-family: var(--font-mono);
    font-size: 0.95em;
    color: var(--text);
    white-space: nowrap;
  }
  
  .math-block {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    text-align: center;
    margin: var(--s-4) 0;
    color: var(--text);
  }
  
  .frac {
    display: inline-flex;
    flex-direction: column;
    vertical-align: middle;
    text-align: center;
    font-size: 0.85em;
    margin: 0 2px;
  }
  
  .frac .num { border-bottom: 1px solid currentColor; padding: 0 4px; }
  .frac .denom { padding: 0 4px; }
  
  .math-text { font-family: var(--font-sans); font-style: italic; }
  
  /* Module footer */
  .module-footer {
    border-top: 1px solid var(--border);
    padding: var(--s-7) var(--s-6);
    background: var(--bg-alt);
  }
  
  .module-footer-inner {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: var(--s-4);
    flex-wrap: wrap;
  }
  
  /* ============================================================
     ALADDIN CHAT VIEW
     ============================================================ */
  
  .aladdin-title {
    display: flex;
    align-items: center;
    gap: var(--s-3);
  }
  
  .aladdin-mark {
    width: 32px;
    height: 32px;
    border: 1px solid var(--yellow);
    color: var(--yellow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
  }
  
  .aladdin-name {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--yellow);
    letter-spacing: 0.18em;
  }
  
  .aladdin-status {
    font-size: 10px;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 2px;
  }
  
  .status-dot {
    width: 6px;
    height: 6px;
    background: var(--yellow);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }
  
  .aladdin-chat {
    flex: 1;
    background: #0a0a0a;
    color: #fff;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 64px - 90px);
  }
  
  .aladdin-messages {
    flex: 1;
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    padding: var(--s-7) var(--s-6);
    overflow-y: auto;
  }
  
  .aladdin-welcome {
    text-align: center;
    padding: var(--s-9) 0;
  }
  
  .aladdin-welcome-mark {
    width: 64px;
    height: 64px;
    border: 1px solid var(--yellow);
    color: var(--yellow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto var(--s-5);
  }
  
  .aladdin-welcome-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: #fff;
    margin-bottom: var(--s-3);
  }
  
  .aladdin-welcome-body {
    font-size: var(--text-base);
    line-height: 1.6;
    color: rgba(255,255,255,0.65);
    max-width: 540px;
    margin: 0 auto var(--s-7);
  }
  
  .aladdin-suggestions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--s-3);
    max-width: 600px;
    margin: 0 auto;
  }
  
  .aladdin-suggestion {
    padding: var(--s-4);
    background: #141414;
    border: 1px solid #262626;
    color: rgba(255,255,255,0.85);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    text-align: left;
    cursor: pointer;
    transition: all 0.15s ease;
    line-height: 1.4;
  }
  
  .aladdin-suggestion:hover {
    border-color: var(--yellow);
    background: #1a1a1a;
  }
  
  .aladdin-msg {
    margin-bottom: var(--s-6);
    display: flex;
    gap: var(--s-4);
  }
  
  .aladdin-msg.user-msg {
    justify-content: flex-end;
  }
  
  .aladdin-msg.user-msg .aladdin-msg-body {
    background: #1a1a1a;
    padding: var(--s-4) var(--s-5);
    max-width: 80%;
    border: 1px solid #262626;
    color: rgba(255,255,255,0.95);
    line-height: 1.5;
  }
  
  .aladdin-msg.ai-msg {
    align-items: flex-start;
  }
  
  .aladdin-msg-mark {
    width: 32px;
    height: 32px;
    border: 1px solid var(--yellow);
    color: var(--yellow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
  }
  
  .aladdin-msg-mark.error {
    border-color: var(--accent);
    color: var(--accent);
  }
  
  .aladdin-msg.ai-msg .aladdin-msg-body {
    flex: 1;
    color: rgba(255,255,255,0.92);
    font-size: var(--text-base);
    line-height: 1.65;
  }
  
  .aladdin-msg.ai-msg .aladdin-msg-body p { margin-bottom: var(--s-3); }
  .aladdin-msg.ai-msg .aladdin-msg-body strong { color: var(--yellow); font-weight: 600; }
  .aladdin-msg.ai-msg .aladdin-msg-body em { color: rgba(255,255,255,0.75); }
  .aladdin-msg.ai-msg .aladdin-msg-body code {
    background: #1a1a1a;
    padding: 1px 6px;
    font-size: 0.9em;
    color: var(--yellow);
    font-family: var(--font-mono);
  }
  .aladdin-msg.ai-msg .aladdin-msg-body ul,
  .aladdin-msg.ai-msg .aladdin-msg-body ol {
    padding-left: 24px;
    margin-bottom: var(--s-3);
  }
  .aladdin-msg.ai-msg .aladdin-msg-body li { margin-bottom: var(--s-2); }
  .aladdin-msg.ai-msg .math-inline { color: var(--yellow); }
  
  .aladdin-thinking-indicator {
    display: flex;
    gap: 6px;
    padding: 8px 0;
  }
  
  .aladdin-thinking-indicator span {
    width: 6px;
    height: 6px;
    background: var(--yellow);
    border-radius: 50%;
    animation: thinking 1.2s infinite;
  }
  
  .aladdin-thinking-indicator span:nth-child(2) { animation-delay: 0.2s; }
  .aladdin-thinking-indicator span:nth-child(3) { animation-delay: 0.4s; }
  
  @keyframes thinking {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.85); }
    40% { opacity: 1; transform: scale(1); }
  }
  
  .aladdin-input-bar {
    background: #0a0a0a;
    border-top: 1px solid #262626;
    padding: var(--s-4) var(--s-6) var(--s-3);
    position: sticky;
    bottom: 0;
  }
  
  .aladdin-input-inner {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    gap: var(--s-3);
    align-items: flex-end;
    background: #141414;
    border: 1px solid #262626;
    padding: var(--s-3);
    transition: border-color 0.15s ease;
  }
  
  .aladdin-input-inner:focus-within {
    border-color: var(--yellow);
  }
  
  .aladdin-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    resize: none;
    color: #fff;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.5;
    max-height: 200px;
    padding: 6px 8px;
  }
  
  .aladdin-input::placeholder { color: rgba(255,255,255,0.35); }
  
  .aladdin-send {
    width: 40px;
    height: 40px;
    background: var(--yellow);
    border: none;
    color: #0a0a0a;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color 0.15s ease;
  }
  
  .aladdin-send:hover { background: var(--yellow-hover); }
  .aladdin-send:disabled { opacity: 0.5; cursor: not-allowed; }
  .aladdin-send svg { width: 16px; height: 16px; }
  
  .aladdin-input-hint {
    max-width: 800px;
    margin: var(--s-2) auto 0;
    display: flex;
    gap: var(--s-4);
    font-size: 10px;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
  
  .aladdin-input-hint .cmdk-kbd {
    background: #141414;
    border-color: #262626;
    color: rgba(255,255,255,0.6);
  }
  
  /* ============================================================
     FORGE
     ============================================================ */
  
  .forge-landing, .forge-results {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--s-9) var(--s-6);
    width: 100%;
  }
  
  .forge-hero, .sandbox-hero, .formulas-hero, .conceptmap-hero, .glossary-hero {
    margin-bottom: var(--s-8);
    max-width: 800px;
  }
  
  .forge-label, .sandbox-label, .formulas-label, .conceptmap-label, .glossary-label {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--s-5);
    display: flex;
    align-items: center;
    gap: var(--s-3);
  }
  
  .forge-label::before, .sandbox-label::before, .formulas-label::before,
  .conceptmap-label::before, .glossary-label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--accent);
  }
  
  .forge-title, .sandbox-title, .formulas-title, .conceptmap-title, .glossary-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.0;
    color: var(--text);
    margin-bottom: var(--s-4);
  }
  
  .forge-title em, .sandbox-title em, .formulas-title em,
  .conceptmap-title em, .glossary-title em {
    font-style: normal;
    color: var(--accent);
  }
  
  .forge-subtitle, .sandbox-subtitle, .formulas-subtitle,
  .conceptmap-subtitle, .glossary-subtitle {
    font-size: var(--text-lg);
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 640px;
  }
  
  .forge-modes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-bottom: var(--s-8);
  }
  
  .forge-mode {
    background: var(--bg);
    padding: var(--s-7);
    border: none;
    cursor: pointer;
    text-align: left;
    display: flex;
    flex-direction: column;
    min-height: 280px;
    font-family: var(--font-sans);
    color: var(--text);
    transition: background-color 0.2s ease;
  }
  
  .forge-mode:hover { background: var(--bg-alt); }
  
  .forge-mode-num {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--accent);
    letter-spacing: 0;
    margin-bottom: var(--s-5);
  }
  
  .forge-mode-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: var(--text);
    margin-bottom: var(--s-4);
  }
  
  .forge-mode-desc {
    font-size: var(--text-base);
    line-height: 1.55;
    color: var(--text-secondary);
    margin-bottom: auto;
    padding-bottom: var(--s-5);
  }
  
  .forge-mode-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.12em;
    padding-top: var(--s-4);
    border-top: 1px solid var(--border);
  }
  
  .forge-stats {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    padding: var(--s-6);
  }
  
  .forge-stats-title, .forge-section-title {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--s-5);
  }
  
  .forge-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--s-4);
  }
  
  .forge-stat {
    border-top: 1px solid var(--border);
    padding-top: var(--s-3);
  }
  
  .forge-stat-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    margin-bottom: var(--s-2);
    text-transform: uppercase;
    letter-spacing: 0.06em;
  }
  
  .forge-stat-value {
    font-family: var(--font-mono);
    font-size: var(--text-2xl);
    font-weight: 500;
    color: var(--text);
  }
  
  /* Forge question view */
  .forge-progress {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    flex: 1;
    max-width: 400px;
  }
  
  .forge-progress-mode {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.1em;
  }
  
  .forge-progress-counter {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
  }
  
  .forge-progress-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-subtle);
    position: relative;
    overflow: hidden;
  }
  
  .forge-progress-fill {
    position: absolute;
    inset: 0 auto 0 0;
    background: var(--accent);
    transition: width 0.3s ease;
  }
  
  .forge-difficulty {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    padding: 4px 10px;
    letter-spacing: 0.1em;
    border: 1px solid var(--border);
  }
  
  .difficulty-easy { color: #22a06b; border-color: rgba(34, 160, 107, 0.3); }
  .difficulty-medium { color: var(--yellow-hover); border-color: var(--yellow-border); }
  .difficulty-hard { color: var(--accent); border-color: var(--accent-border); }
  
  .forge-question-view {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--s-7) var(--s-6);
  }
  
  .forge-question-inner {
    max-width: 800px;
    width: 100%;
  }
  
  .forge-question-meta {
    display: flex;
    gap: var(--s-3);
    margin-bottom: var(--s-5);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
  
  .forge-q-module { color: var(--accent); font-weight: 600; }
  .forge-q-topic { color: var(--text-secondary); }
  .forge-q-topic::before { content: '· '; color: var(--text-tertiary); }
  
  .forge-question-text {
    font-size: var(--text-2xl);
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: -0.015em;
    color: var(--text);
    margin-bottom: var(--s-7);
  }
  
  .forge-options {
    display: grid;
    gap: var(--s-3);
    margin-bottom: var(--s-7);
  }
  
  .forge-option {
    display: grid;
    grid-template-columns: 36px 1fr auto;
    gap: var(--s-4);
    padding: var(--s-4) var(--s-5);
    background: var(--bg);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.15s ease;
    font-family: var(--font-sans);
    text-align: left;
    align-items: center;
    color: var(--text);
  }
  
  .forge-option:not(:disabled):hover {
    border-color: var(--text);
    background: var(--bg-alt);
  }
  
  .forge-option-letter {
    font-family: var(--font-mono);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-secondary);
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .forge-option-text {
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--text);
  }
  
  .forge-option.selected {
    border-color: var(--text);
    background: var(--bg-alt);
  }
  
  .forge-option.correct {
    border-color: #22a06b;
    background: rgba(34, 160, 107, 0.06);
  }
  
  .forge-option.correct .forge-option-letter {
    background: #22a06b;
    border-color: #22a06b;
    color: #fff;
  }
  
  .forge-option.wrong {
    border-color: var(--accent);
    background: var(--accent-subtle);
  }
  
  .forge-option.wrong .forge-option-letter {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
  }
  
  .forge-option-check, .forge-option-x {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
  }
  
  .forge-option-check { color: #22a06b; }
  .forge-option-x { color: var(--accent); }
  
  .forge-option:disabled { cursor: default; }
  
  .forge-explanation {
    background: var(--bg-alt);
    border-left: 3px solid var(--accent);
    padding: var(--s-5);
    margin-bottom: var(--s-6);
  }
  
  .forge-explanation-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.12em;
    margin-bottom: var(--s-3);
  }
  
  .forge-explanation-body {
    font-size: var(--text-base);
    line-height: 1.65;
    color: var(--text);
  }
  
  .forge-explanation-body strong { font-weight: 600; }
  
  .forge-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--s-3);
  }
  
  /* Forge results */
  .forge-results-inner { max-width: 900px; margin: 0 auto; }
  
  .forge-results-label {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--accent);
    letter-spacing: 0.12em;
    margin-bottom: var(--s-5);
  }
  
  .forge-score-display {
    text-align: center;
    padding: var(--s-8) var(--s-5);
    border: 1px solid var(--border);
    margin-bottom: var(--s-7);
    background: var(--bg-alt);
  }
  
  .forge-score-num {
    font-family: var(--font-mono);
    font-size: var(--text-hero);
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.04em;
    line-height: 1;
  }
  
  .forge-score-of {
    color: var(--text-tertiary);
    font-size: var(--text-3xl);
    font-weight: 400;
  }
  
  .forge-score-pct {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    color: var(--accent);
    font-weight: 500;
    margin: var(--s-3) 0;
  }
  
  .forge-score-verdict {
    font-size: var(--text-lg);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }
  
  .forge-results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--s-4);
    margin-bottom: var(--s-7);
  }
  
  .forge-result-stat {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    padding: var(--s-5);
    text-align: center;
  }
  
  .forge-result-stat-value {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: 500;
    color: var(--text);
    line-height: 1;
  }
  
  .forge-result-stat-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: var(--s-3);
  }
  
  .forge-topics-breakdown {
    margin-bottom: var(--s-7);
    border-top: 1px solid var(--border);
    padding-top: var(--s-6);
  }
  
  .forge-topic-row {
    display: grid;
    grid-template-columns: 220px 1fr 80px;
    gap: var(--s-4);
    align-items: center;
    margin-bottom: var(--s-3);
  }
  
  .forge-topic-name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text);
  }
  
  .forge-topic-bar {
    height: 6px;
    background: var(--bg-subtle);
    position: relative;
  }
  
  .forge-topic-fill {
    position: absolute;
    inset: 0 auto 0 0;
    background: var(--accent);
    transition: width 0.5s ease;
  }
  
  .forge-topic-score {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-align: right;
  }
  
  .forge-mistakes {
    margin-bottom: var(--s-6);
    border-top: 1px solid var(--border);
    padding-top: var(--s-6);
  }
  
  .forge-mistake {
    border: 1px solid var(--border);
    padding: var(--s-4);
    margin-bottom: var(--s-3);
    background: var(--bg);
  }
  
  .forge-mistake summary {
    cursor: pointer;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text);
  }
  
  .forge-mistake-q { display: inline; }
  
  .forge-mistake-body {
    margin-top: var(--s-4);
    padding-top: var(--s-3);
    border-top: 1px solid var(--border);
    font-size: var(--text-sm);
    line-height: 1.55;
    display: grid;
    gap: var(--s-2);
  }
  
  .forge-mistake-exp {
    margin-top: var(--s-3);
    padding-top: var(--s-3);
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
  }
  
  /* ============================================================
     GRAPH SANDBOX
     ============================================================ */
  
  .sandbox-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--s-8) var(--s-6);
    width: 100%;
  }
  
  .sandbox-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--s-4);
  }
  
  .sandbox-graph-card {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: var(--s-6);
  }
  
  .sandbox-graph-card h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: -0.015em;
    color: var(--text);
    margin-bottom: var(--s-2);
  }
  
  .sandbox-graph-card > p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--s-5);
    line-height: 1.5;
  }
  
  .sandbox-controls {
    display: grid;
    gap: var(--s-3);
    margin-bottom: var(--s-4);
    padding: var(--s-4);
    background: var(--bg-alt);
    border: 1px solid var(--border);
  }
  
  .sandbox-controls label {
    display: grid;
    grid-template-columns: 140px 1fr 50px;
    align-items: center;
    gap: var(--s-3);
    font-size: var(--text-sm);
    color: var(--text);
    font-weight: 500;
  }
  
  .sandbox-controls label span:last-child {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--accent);
    text-align: right;
    font-weight: 500;
  }
  
  .sandbox-controls input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--border);
    outline: none;
    cursor: pointer;
  }
  
  .sandbox-controls input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent);
    cursor: pointer;
    border-radius: 0;
    border: 2px solid var(--bg);
  }
  
  .sandbox-controls input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent);
    cursor: pointer;
    border-radius: 0;
    border: 2px solid var(--bg);
  }
  
  .sandbox-svg {
    width: 100%;
    height: auto;
    display: block;
    background: var(--bg);
    border: 1px solid var(--border);
    margin-bottom: var(--s-4);
  }
  
  .sandbox-readout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--s-3);
    padding: var(--s-3);
    background: var(--bg-alt);
    border: 1px solid var(--border);
    font-size: var(--text-sm);
  }
  
  .sandbox-readout > div {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  
  .sandbox-readout span {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }
  
  .sandbox-readout strong {
    font-family: var(--font-mono);
    color: var(--text);
    font-weight: 600;
  }
  
  /* ============================================================
     FORMULA VAULT
     ============================================================ */
  
  .formulas-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--s-8) var(--s-6);
    width: 100%;
  }
  
  .formulas-search, .glossary-search {
    margin-top: var(--s-6);
    max-width: 480px;
  }
  
  .formulas-search input, .glossary-search input {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    border: 1px solid var(--border-strong);
    background: var(--bg);
    color: var(--text);
    outline: none;
    transition: border-color 0.15s ease;
  }
  
  .formulas-search input:focus, .glossary-search input:focus {
    border-color: var(--accent);
  }
  
  .formulas-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--s-4);
    margin-top: var(--s-6);
  }
  
  .formula-card {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: var(--s-5);
    display: flex;
    flex-direction: column;
  }
  
  .formula-card-meta {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--s-3);
  }
  
  .formula-card-name {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--s-4);
    letter-spacing: -0.015em;
  }
  
  .formula-card-eq {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    padding: var(--s-4);
    text-align: center;
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    margin-bottom: var(--s-4);
    color: var(--text);
  }
  
  .formula-card-section {
    margin-bottom: var(--s-3);
  }
  
  .formula-card-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--s-2);
    font-weight: 600;
  }
  
  .formula-card-trap .formula-card-label { color: var(--accent); }
  
  .formula-card-body {
    font-size: var(--text-sm);
    line-height: 1.55;
    color: var(--text);
  }
  
  .formulas-empty {
    grid-column: 1 / -1;
    padding: var(--s-9);
    text-align: center;
    color: var(--text-secondary);
  }
  
  /* ============================================================
     FLASHCARDS
     ============================================================ */
  
  .flashcard-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--s-7) var(--s-6);
    gap: var(--s-7);
  }
  
  .flashcard {
    width: 100%;
    max-width: 600px;
    aspect-ratio: 5 / 3;
    perspective: 1500px;
    cursor: pointer;
  }
  
  .flashcard-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    transform-style: preserve-3d;
  }
  
  .flashcard-inner.flipped { transform: rotateY(180deg); }
  
  .flashcard-face {
    position: absolute;
    inset: 0;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--s-7);
    text-align: center;
  }
  
  .flashcard-front {
    background: var(--bg);
    border: 1px solid var(--border-strong);
  }
  
  .flashcard-back {
    background: var(--bg-alt);
    border: 1px solid var(--accent);
    transform: rotateY(180deg);
  }
  
  .flashcard-meta, .flashcard-meta-back {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: var(--s-5);
  }
  
  .flashcard-text {
    font-size: var(--text-3xl);
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text);
    line-height: 1.2;
    max-width: 480px;
  }
  
  .flashcard-text-back {
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text);
    max-width: 500px;
  }
  
  .flashcard-text-back strong { font-weight: 600; }
  
  .flashcard-hint {
    position: absolute;
    bottom: var(--s-4);
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }
  
  .flashcard-controls {
    display: flex;
    gap: var(--s-3);
    width: 100%;
    max-width: 600px;
  }
  
  .flashcard-btn {
    flex: 1;
    padding: var(--s-4);
    background: var(--bg);
    border: 1px solid var(--border);
    cursor: pointer;
    font-family: var(--font-sans);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: all 0.15s ease;
    color: var(--text);
  }
  
  .flashcard-btn:hover { border-color: var(--text); }
  .flashcard-btn-hard:hover { border-color: var(--accent); color: var(--accent); }
  .flashcard-btn-easy:hover { border-color: var(--yellow-hover); color: var(--yellow-hover); }
  
  .flashcard-btn-label {
    font-weight: 600;
    font-size: var(--text-base);
  }
  
  .flashcard-btn-hint {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
  }
  
  .flashcard-complete {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--s-9) var(--s-6);
  }
  
  .flashcard-complete-inner {
    max-width: 500px;
    text-align: center;
  }
  
  .flashcard-complete-icon {
    width: 80px;
    height: 80px;
    border: 2px solid var(--yellow);
    color: var(--yellow);
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--s-6);
    font-weight: 600;
  }
  
  .flashcard-complete-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text);
    margin-bottom: var(--s-4);
  }
  
  .flashcard-complete-body {
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-secondary);
  }
  
  /* ============================================================
     CONCEPT MAP
     ============================================================ */
  
  .conceptmap-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--s-7) var(--s-6);
    width: 100%;
  }
  
  .conceptmap-frame {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: var(--s-5);
    margin-top: var(--s-6);
    overflow: auto;
  }
  
  .conceptmap-svg {
    width: 100%;
    height: auto;
    min-height: 600px;
  }
  
  .concept-node:hover circle {
    r: 9;
    filter: drop-shadow(0 0 8px var(--accent));
  }
  
  .concept-node text {
    pointer-events: none;
    user-select: none;
  }
  
  .conceptmap-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--s-5);
    margin-top: var(--s-5);
    padding: var(--s-4);
    background: var(--bg-alt);
    border: 1px solid var(--border);
    font-size: var(--text-sm);
    color: var(--text-secondary);
  }
  
  .cm-legend {
    display: flex;
    align-items: center;
    gap: var(--s-2);
  }
  
  .cm-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
  }
  
  /* ============================================================
     GLOSSARY
     ============================================================ */
  
  .glossary-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--s-8) var(--s-6);
    width: 100%;
  }
  
  .glossary-list {
    display: grid;
    gap: var(--s-1);
    border-top: 1px solid var(--border);
    margin-top: var(--s-7);
  }
  
  .glossary-item {
    padding: var(--s-5) 0;
    border-bottom: 1px solid var(--border);
  }
  
  .glossary-term {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--s-3);
    letter-spacing: -0.01em;
  }
  
  .glossary-jump {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    background: transparent;
    border: 1px solid var(--accent-border);
    padding: 4px 10px;
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: all 0.15s ease;
  }
  
  .glossary-jump:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
  }
  
  .glossary-def {
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-secondary);
  }
  
  /* ============================================================
     RESPONSIVE — VIEWS
     ============================================================ */
  
  @media (max-width: 1024px) {
    .forge-modes { grid-template-columns: 1fr; }
    .formulas-grid, .sandbox-grid { grid-template-columns: 1fr; }
    .module-hero-title, .forge-title, .sandbox-title,
    .formulas-title, .conceptmap-title, .glossary-title { font-size: var(--text-4xl); }
    .forge-results-grid { grid-template-columns: 1fr 1fr 1fr; }
    .forge-topic-row { grid-template-columns: 140px 1fr 60px; }
    .aladdin-suggestions { grid-template-columns: 1fr; }
  }
  
  @media (max-width: 768px) {
    .view-header-inner { padding: 0 var(--s-4); height: 56px; }
    .view-meta { font-size: 10px; }
    .module-hero, .module-content, .forge-landing, .forge-results,
    .sandbox-content, .formulas-content, .conceptmap-content, .glossary-content {
      padding-left: var(--s-4);
      padding-right: var(--s-4);
    }
    .module-hero-title { font-size: var(--text-3xl); }
    .forge-results-grid { grid-template-columns: 1fr; }
    .forge-topic-row { grid-template-columns: 1fr; gap: var(--s-2); }
    .forge-topic-bar { height: 4px; }
    .flashcard-text { font-size: var(--text-xl); }
    .sandbox-controls label { grid-template-columns: 1fr; gap: 4px; }
    .m-numbered-item { grid-template-columns: 1fr; }
    .aladdin-msg { gap: var(--s-3); }
    .aladdin-input-bar { padding: var(--s-3); }
  }