/* ═════════════════════════════════════════════════════════════════════
   NIDUS DEFENSE TECHNOLOGIES — SURGICAL INDUSTRIAL DESIGN SYSTEM
   Dark Telemetry Default (Command & Control Precision) + Clean Light Mode
   Swiss Typography meets Vannevar / Hadrian / Anduril Precision
   ═════════════════════════════════════════════════════════════════════ */

@layer reset, tokens, base, layout, components, utilities;

@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
  }

  body {
    min-height: 100vh;
    min-height: 100dvh;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
  }

  img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
  }

  input, button, textarea, select {
    font: inherit;
    color: inherit;
  }

  button {
    cursor: pointer;
    background: none;
    border: none;
  }

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

@layer tokens {
  :root {
    /* Core Typography */
    --font-display: "Orbitron", -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-serif: "Source Serif 4", Georgia, serif;
    --font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;

    /* DEFAULT: DARK TELEMETRY MODE (White-on-Black Precision Command) */
    --bg-canvas: #08090B;
    --bg-surface: #101216;
    --bg-surface-elevated: #161920;
    --bg-glass: rgba(8, 9, 11, 0.94);

    --fg-primary: #FFFFFF;
    --fg-secondary: #A1A1AA;
    --fg-tertiary: #71717A;
    --fg-muted: #52525B;

    /* Hairline Architectural Borders */
    --border-hairline: rgba(255, 255, 255, 0.12);
    --border-medium: rgba(255, 255, 255, 0.22);
    --border-bold: #FFFFFF;

    /* Signature Print-Head Laser Accent */
    --laser-blue: #00F0FF;
    --laser-cyan-glow: rgba(0, 240, 255, 0.4);
    --status-active: #10B981;

    /* Layout Constraints */
    --container-max: 1280px;
    --nav-height: 68px;
  }

  /* OPTIONAL LIGHT MODE (Clean White Paper Architecture) */
  [data-theme="light"] {
    --bg-canvas: #FFFFFF;
    --bg-surface: #F9F9F9;
    --bg-surface-elevated: #F2F2F2;
    --bg-glass: rgba(255, 255, 255, 0.94);

    --fg-primary: #000000;
    --fg-secondary: #525252;
    --fg-tertiary: #737373;
    --fg-muted: #A3A3A3;

    --border-hairline: #E5E5E5;
    --border-medium: #D4D4D4;
    --border-bold: #000000;
  }
}

@layer base {
  body {
    background-color: var(--bg-canvas);
    color: var(--fg-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    transition: background-color 0.2s ease, color 0.2s ease;
  }

  /* Authentic Nidus Tactile Grain */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.028;
    pointer-events: none;
    z-index: 9999;
  }

  ::selection {
    background: #FFFFFF;
    color: #000000;
  }

  [data-theme="light"] ::selection {
    background: #000000;
    color: #FFFFFF;
  }
}

/* ═════════════════════════════════════════════════════════════════════
   LAYOUT CONTAINERS & ARCHITECTURAL GRID
   ═════════════════════════════════════════════════════════════════════ */
@layer layout {
  .site-container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: clamp(1.5rem, 4.5vw, 3.5rem);
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-hairline);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
    gap: 1.5rem;
  }

  .nav-brand {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    color: var(--fg-primary);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
  }

  .nav-brand-dot {
    width: 6px;
    height: 6px;
    background: var(--fg-primary);
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2.2vw, 2.25rem);
    list-style: none;
  }

  .nav-link {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-secondary);
    padding: 0.35rem 0;
    border-bottom: 1px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
  }

  .nav-link:hover, .nav-link.active {
    color: var(--fg-primary);
    border-bottom-color: var(--fg-primary);
  }

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

/* ═════════════════════════════════════════════════════════════════════
   BUTTONS & TACTILE CONTROLS (CLEAN SWISS AESTHETIC)
   ═════════════════════════════════════════════════════════════════════ */
@layer components {
  .btn-clean {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.7rem 1.4rem;
    border: 1px solid var(--border-bold);
    background: transparent;
    color: var(--fg-primary);
    transition: all 0.15s ease;
    white-space: nowrap;
  }

  .btn-clean-solid {
    background: var(--fg-primary);
    color: var(--bg-canvas);
    border-color: var(--fg-primary);
  }

  .btn-clean-solid:hover {
    background: transparent;
    color: var(--fg-primary);
  }

  .btn-clean:hover {
    background: var(--fg-primary);
    color: var(--bg-canvas);
  }

  .btn-icon-minimal {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-hairline);
    color: var(--fg-secondary);
    transition: all 0.15s ease;
  }

  .btn-icon-minimal:hover {
    border-color: var(--fg-primary);
    color: var(--fg-primary);
  }
}

/* ═════════════════════════════════════════════════════════════════
   HERO: ELEVATED SPLASH WITH ROBUST NON-COLLIDING ARCHITECTURE
   ═════════════════════════════════════════════════════════════════ */
@layer layout {
  .hero-canvas-screen {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding-top: calc(var(--nav-height) + 2rem);
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-hairline);
    overflow: hidden;
  }

  /* Full-viewport Kinetic Canvas (Spans entire hero section, zero boundary clipping) */
  .robotic-builder-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 4;
  }

  /* Top HUD Bar (Structured Flex Grid — No Absolute Collisions) */
  .hero-hud-topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    width: 100%;
    margin-bottom: 2rem;
  }

  .hud-block-left {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--fg-secondary);
    line-height: 1.8;
    text-align: left;
  }

  .hud-block-right {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--fg-secondary);
    line-height: 1.8;
    text-align: right;
  }

  .hud-val-bold {
    color: var(--fg-primary);
    font-weight: 600;
  }

  /* Center Stage */
  .hero-center-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-block: auto;
    padding-block: 2rem;
  }

  /* ═════════════════════════════════════════════════════════════════
     AUTONOMOUS ROBOTIC SINTERING CELL (CLEAN DEFENSE TECH HERO)
     ═════════════════════════════════════════════════════════════════ */
  .brand-centerpiece {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
  }

  .brand-wordmark {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(3.75rem, 12vw, 8.5rem);
    letter-spacing: 0.08em;
    line-height: 1.05;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.06em;
    color: var(--fg-primary);
    user-select: none;
  }

  /* Letter states during robotic build */
  .reveal-letter {
    display: inline-block;
    position: relative;
    /* Ghosted technical wireframe outline before welding */
    opacity: 0.12;
    clip-path: inset(0 100% 0 0);
    transition: opacity 0.2s ease;
    will-change: clip-path, opacity;
  }

  .reveal-letter.building {
    opacity: 1;
  }

  .reveal-letter.built {
    opacity: 1;
    clip-path: inset(0 0% 0 0) !important;
  }

  /* Deco Rule with Square (Nidus Signature) */
  .hero-deco {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.85rem;
    margin-bottom: 1.75rem;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1), transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .deco-rule {
    width: 4rem;
    height: 2px;
    background: var(--fg-primary);
  }

  .deco-square {
    width: 8px;
    height: 8px;
    border: 2px solid var(--fg-primary);
  }

  .hero-tagline {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    word-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--fg-secondary);
    margin-bottom: 2.25rem;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1) 0.08s, transform 0.45s cubic-bezier(0.16, 1, 0.3, 1) 0.08s;
  }

  .hero-statement {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    font-weight: 400;
    line-height: 1.75;
    max-width: 720px;
    margin-inline: auto;
    color: var(--fg-secondary);
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1) 0.16s, transform 0.45s cubic-bezier(0.16, 1, 0.3, 1) 0.16s;
  }

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

  .hero-nav-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.75rem;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1) 0.24s, transform 0.45s cubic-bezier(0.16, 1, 0.3, 1) 0.24s;
  }

  .hero-center-stage.build-complete .hero-deco,
  .hero-center-stage.build-complete .hero-tagline,
  .hero-center-stage.build-complete .hero-statement,
  .hero-center-stage.build-complete .hero-nav-actions {
    opacity: 1;
    transform: translateY(0);
  }

  /* Reduced motion fallback: always display everything immediately */
  @media (prefers-reduced-motion: reduce) {
    .reveal-letter {
      opacity: 1 !important;
      clip-path: inset(0 0% 0 0) !important;
    }
    .hero-deco,
    .hero-tagline,
    .hero-statement,
    .hero-nav-actions {
      opacity: 1 !important;
      transform: none !important;
    }
  }

  /* Bottom Pinned Meta Items (Guaranteed No Overlap) */
  .hero-footer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding-top: 2rem;
    border-top: 1px solid var(--border-hairline);
    margin-top: 2rem;
  }

  .hero-pinned-origin {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-secondary);
  }

  .hero-scroll-prompt {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-muted);
    transition: color 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .hero-scroll-prompt:hover {
    color: var(--fg-primary);
  }

  .hero-pinned-contact {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-secondary);
  }

  .hero-pinned-contact a {
    border-bottom: 1px solid var(--border-hairline);
    transition: border-color 0.15s ease, color 0.15s ease;
  }

  .hero-pinned-contact a:hover {
    color: var(--fg-primary);
    border-bottom-color: var(--fg-primary);
  }
}

/* ═════════════════════════════════════════════════════════════════════
   SECTION 1: THE CAD / CAM TOOLPATH & PART INSPECTOR
   ═════════════════════════════════════════════════════════════════════ */
@layer layout {
  .section-blueprint {
    padding: 7rem 0;
    border-bottom: 1px solid var(--border-hairline);
    background: var(--bg-surface);
  }

  .blueprint-header {
    margin-bottom: 3.5rem;
  }

  .section-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--fg-secondary);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.85rem;
  }

  .section-label::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--fg-primary);
  }

  .section-heading {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.8vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
  }

  .section-subtext {
    font-size: 1.05rem;
    color: var(--fg-secondary);
    max-width: 720px;
    line-height: 1.7;
  }

  /* Architectural CAD Workbench Frame */
  .cad-workbench {
    background: var(--bg-canvas);
    border: 1px solid var(--border-bold);
    display: grid;
    grid-template-columns: 1fr 360px;
  }

  .cad-viewport {
    position: relative;
    min-height: 540px;
    border-right: 1px solid var(--border-hairline);
    overflow: hidden;
  }

  .cad-canvas {
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0;
  }

  .cad-hud-top {
    position: absolute;
    top: 1.25rem;
    left: 1.5rem;
    right: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--fg-secondary);
    pointer-events: none;
    z-index: 10;
    background: rgba(8, 9, 11, 0.75);
    padding: 0.5rem 0.85rem;
    border: 1px solid var(--border-hairline);
    backdrop-filter: blur(4px);
  }

  [data-theme="light"] .cad-hud-top {
    background: rgba(255, 255, 255, 0.85);
  }

  .cad-hud-bottom {
    position: absolute;
    bottom: 1.25rem;
    left: 1.5rem;
    right: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--fg-secondary);
    pointer-events: none;
    z-index: 10;
    background: rgba(8, 9, 11, 0.75);
    padding: 0.5rem 0.85rem;
    border: 1px solid var(--border-hairline);
    backdrop-filter: blur(4px);
  }

  [data-theme="light"] .cad-hud-bottom {
    background: rgba(255, 255, 255, 0.85);
  }

  /* Sidebar Controls */
  .cad-sidebar {
    padding: 2.25rem 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--bg-surface);
  }

  .cad-step-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.25rem;
  }

  .cad-step-btn {
    text-align: left;
    padding: 1.1rem 1.2rem;
    border: 1px solid var(--border-hairline);
    background: var(--bg-canvas);
    transition: all 0.15s ease;
  }

  .cad-step-btn:hover {
    border-color: var(--border-bold);
  }

  .cad-step-btn.active {
    border-color: var(--border-bold);
    background: var(--fg-primary);
    color: var(--bg-canvas);
  }

  .cad-step-btn.active .step-num,
  .cad-step-btn.active .step-desc {
    color: var(--bg-canvas);
    opacity: 0.85;
  }

  .step-num {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-muted);
    display: block;
    margin-bottom: 0.35rem;
  }

  .step-title {
    font-family: var(--font-heading);
    font-size: 0.925rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.35rem;
  }

  .step-desc {
    font-size: 0.78rem;
    color: var(--fg-secondary);
    line-height: 1.5;
  }

  .gcode-readout-box {
    margin-top: 1.5rem;
    padding: 1rem 1.15rem;
    background: var(--bg-canvas);
    border: 1px solid var(--border-hairline);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    line-height: 1.7;
    color: var(--fg-secondary);
    height: 110px;
    overflow: hidden;
  }
}

/* ═════════════════════════════════════════════════════════════════
   SECTION 2: THE KNUDSEN THESIS & INDUSTRIAL DEFICIT
   ═════════════════════════════════════════════════════════════════ */
@layer layout {
  .section-thesis {
    padding: 8rem 0;
    border-bottom: 1px solid var(--border-hairline);
  }

  .thesis-dual-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 5rem;
    align-items: start;
  }

  .thesis-manifesto-box {
    border-left: 3px solid var(--fg-primary);
    padding-left: 2.25rem;
  }

  .thesis-quote-lead {
    font-family: var(--font-heading);
    font-size: clamp(1.35rem, 2.2vw, 1.85rem);
    font-weight: 600;
    line-height: 1.45;
    letter-spacing: -0.015em;
    color: var(--fg-primary);
    margin-bottom: 2.25rem;
  }

  .thesis-author-signature {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-top: 2.5rem;
  }

  .author-initials {
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-bold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 900;
  }

  .author-creds h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.2rem;
  }

  .author-creds p {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--fg-secondary);
    line-height: 1.4;
  }

  /* Deficit Table Matrix (Clean Swiss Spec Sheet) */
  .deficit-matrix {
    border: 1px solid var(--border-bold);
  }

  .matrix-row {
    display: grid;
    grid-template-columns: 160px 1fr;
    border-bottom: 1px solid var(--border-hairline);
    padding: 1.75rem 2rem;
    gap: 2rem;
    align-items: start;
  }

  .matrix-row:last-child {
    border-bottom: none;
    background: var(--bg-surface);
  }

  .matrix-stat {
    font-family: var(--font-display);
    font-size: 2.1rem;
    font-weight: 900;
    line-height: 1;
    color: var(--fg-primary);
    white-space: nowrap;
  }

  .matrix-stat.highlight-mult {
    border-left: 3px solid var(--fg-primary);
    padding-left: 0.75rem;
  }

  .matrix-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 0.45rem;
  }

  .matrix-desc {
    font-size: 0.85rem;
    color: var(--fg-secondary);
    line-height: 1.6;
  }
}

/* ═════════════════════════════════════════════════════════════════
   SECTION 3: MODULAR ARCHITECTURE (SPEC SHEET MANUAL)
   ═════════════════════════════════════════════════════════════════ */
@layer layout {
  .section-systems {
    padding: 8rem 0;
    border-bottom: 1px solid var(--border-hairline);
    background: var(--bg-surface);
  }

  .systems-spec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border: 1px solid var(--border-bold);
    background: var(--border-hairline);
    gap: 1px;
    margin-top: 3.5rem;
  }

  .spec-module-card {
    background: var(--bg-canvas);
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .module-index {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--fg-secondary);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .module-title {
    font-family: var(--font-heading);
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.25;
    margin-bottom: 0.85rem;
  }

  .module-prose {
    font-size: 0.925rem;
    color: var(--fg-secondary);
    line-height: 1.7;
    margin-bottom: 2.25rem;
  }

  .module-specs-table {
    border-top: 1px solid var(--border-hairline);
    padding-top: 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .spec-pair dt {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-muted);
    margin-bottom: 0.25rem;
  }

  .spec-pair dd {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--fg-primary);
  }
}

/* ═════════════════════════════════════════════════════════════════
   SECTION 4: DEFENSE DOMAINS
   ═════════════════════════════════════════════════════════════════ */
@layer layout {
  .section-domains {
    padding: 8rem 0;
    border-bottom: 1px solid var(--border-hairline);
  }

  .domains-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--border-bold);
    background: var(--border-hairline);
    gap: 1px;
    margin-top: 3.5rem;
  }

  .domain-card {
    background: var(--bg-canvas);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .domain-tag {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-muted);
    margin-bottom: 1.25rem;
  }

  .domain-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.85rem;
    line-height: 1.35;
  }

  .domain-text {
    font-size: 0.875rem;
    color: var(--fg-secondary);
    line-height: 1.65;
    margin-bottom: 1.75rem;
  }

  .domain-materials {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--fg-tertiary);
    letter-spacing: 0.05em;
    border-top: 1px solid var(--border-hairline);
    padding-top: 1rem;
    line-height: 1.5;
  }
}

/* ═════════════════════════════════════════════════════════════════
   SECTION 5: LEADERSHIP & ENGINEERING TEAM
   ═════════════════════════════════════════════════════════════════ */
@layer layout {
  .section-team {
    padding: 8rem 0;
    border-bottom: 1px solid var(--border-hairline);
    background: var(--bg-canvas);
  }

  .team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border: 1px solid var(--border-bold);
    background: var(--border-hairline);
    gap: 1px;
    margin-top: 3.5rem;
  }

  .team-card {
    background: var(--bg-canvas);
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 2.5rem;
  }

  .team-member-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.6rem;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .team-member-title-row {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
  }

  .team-member-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.015em;
    color: var(--fg-primary);
  }

  .team-linkedin-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.22rem 0.55rem;
    border: 1px solid var(--border-hairline);
    background: var(--bg-surface);
    border-radius: 2px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--fg-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
  }

  .team-linkedin-btn:hover {
    border-color: #0A66C2;
    background: rgba(10, 102, 194, 0.15);
    color: #388EE6;
    transform: translateY(-1px);
  }

  .team-linkedin-btn .linkedin-icon {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    fill: currentColor;
  }

  .team-linkedin-btn .ext-arrow {
    font-size: 0.72rem;
    line-height: 1;
    opacity: 0.7;
    transition: transform 0.2s ease;
  }

  .team-linkedin-btn:hover .ext-arrow {
    opacity: 1;
    transform: translate(1px, -1px);
  }

  .team-member-code {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-muted);
  }

  .team-member-role {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-secondary);
    margin-bottom: 1rem;
    display: block;
  }

  .team-member-bio {
    font-size: 0.925rem;
    color: var(--fg-secondary);
    line-height: 1.75;
  }

  /* Pedigree Tray & Logo Badges */
  .pedigree-tray {
    border-top: 1px solid var(--border-hairline);
    padding-top: 1.5rem;
  }

  .pedigree-tray-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg-muted);
    margin-bottom: 0.85rem;
    display: block;
  }

  .pedigree-badges-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
  }

  .pedigree-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.45rem 0.85rem;
    border: 1px solid var(--border-hairline);
    background: var(--bg-surface);
    border-radius: 2px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--fg-primary);
    transition: all 0.2s ease;
    user-select: none;
  }

  .pedigree-badge:hover {
    border-color: var(--border-bold);
    background: var(--bg-surface-elevated);
    transform: translateY(-1px);
  }

  .pedigree-logo {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
    display: inline-block;
    color: var(--fg-primary);
    transform-origin: center center;
  }

  /* ═════════════════════════════════════════════════════════════
     UNIQUE MICRO-ANIMATIONS (A DISTINCT MOTION FOR EACH INSTITUTION)
     ═════════════════════════════════════════════════════════════ */

  /* 1. PALANTIR: Planetary orbital rotation & telemetry glow */
  .anim-palantir {
    animation: palantir-orbit 10s linear infinite;
  }
  @keyframes palantir-orbit {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
  }

  /* 2. VANNEVAR LABS: Laser vector scan sweep & precision elevation */
  .anim-vannevar {
    animation: vannevar-scan 2.8s ease-in-out infinite;
  }
  @keyframes vannevar-scan {
    0%, 100% { opacity: 0.7; transform: translateY(0); }
    50%      { opacity: 1; transform: translateY(-1.5px); filter: drop-shadow(0 0 3px var(--laser-blue)); }
  }

  /* 3. ROBERT BOSCH: Mechanical induction 90-degree armature indexing */
  .anim-bosch {
    animation: bosch-index 4.2s cubic-bezier(0.77, 0, 0.175, 1) infinite;
  }
  @keyframes bosch-index {
    0%, 20%   { transform: rotate(0deg); }
    30%, 50%  { transform: rotate(90deg); }
    60%, 80%  { transform: rotate(180deg); }
    90%, 100% { transform: rotate(270deg); }
  }

  /* 4. PEREGRINE: Aerodynamic falcon glide and banking sweep */
  .anim-peregrine {
    animation: peregrine-glide 3.2s ease-in-out infinite;
  }
  @keyframes peregrine-glide {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50%      { transform: translateY(-2px) rotate(-3deg); filter: drop-shadow(0 0 3px var(--laser-blue)); }
  }

  /* 5. STANFORD: Cardinal aura bloom & redwood pulse */
  .anim-stanford {
    animation: stanford-bloom 3.4s ease-in-out infinite;
  }
  @keyframes stanford-bloom {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 0 transparent); }
    50%      { transform: scale(1.08); filter: drop-shadow(0 0 4px rgba(140, 21, 21, 0.7)); }
  }

  /* 6. GOOGLE / DEEPMIND: Neural tensor spectral breathing */
  .anim-google {
    animation: google-matrix 3.2s ease-in-out infinite;
  }
  @keyframes google-matrix {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.1); filter: drop-shadow(0 0 3px #4285F4); }
  }

  /* 7. MIT: Stepped vertical equalizer bars rhythm */
  .anim-mit .mit-m { animation: mit-bar-1 2.4s ease-in-out infinite; transform-origin: bottom; }
  .anim-mit .mit-i { animation: mit-bar-2 2.4s ease-in-out infinite; transform-origin: bottom; }
  .anim-mit .mit-t-stem { animation: mit-bar-3 2.4s ease-in-out infinite; transform-origin: bottom; }
  .anim-mit .mit-t-bar { animation: mit-bar-4 2.4s ease-in-out infinite; transform-origin: center; }
  @keyframes mit-bar-1 { 0%, 100% { opacity: 1; transform: scaleY(1); } 50% { opacity: 0.8; transform: scaleY(0.92); } }
  @keyframes mit-bar-2 { 0%, 100% { opacity: 0.75; transform: scaleY(0.92); } 50% { opacity: 1; transform: scaleY(1.08); } }
  @keyframes mit-bar-3 { 0%, 100% { opacity: 1; transform: scaleY(1.05); } 50% { opacity: 0.85; transform: scaleY(0.95); } }
  @keyframes mit-bar-4 { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-1.5px); } }

  /* 8. CARNEGIE MELLON: Scottish Tartan crest pulse & focus */
  .anim-cmu {
    animation: cmu-pulse 3.5s ease-in-out infinite;
  }
  @keyframes cmu-pulse {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 0 transparent); }
    50%      { transform: scale(1.08); filter: drop-shadow(0 0 4px rgba(196, 18, 48, 0.7)); }
  }

  /* 9. ANDURIL: Kinetic flame ascent shimmer */
  .anim-anduril {
    animation: anduril-flame 2.2s ease-in-out infinite;
    transform-origin: bottom center;
  }
  @keyframes anduril-flame {
    0%, 100% { transform: scaleY(1); filter: drop-shadow(0 0 1px transparent); }
    50%      { transform: scaleY(1.15) scaleX(0.96); filter: drop-shadow(0 0 4px rgba(245, 158, 11, 0.7)); }
  }

  /* 10. SPACEX: Hypersonic orbital trajectory streak */
  .anim-spacex {
    animation: spacex-orbit 2.8s ease-in-out infinite;
  }
  @keyframes spacex-orbit {
    0%, 100% { transform: translate(0, 0); }
    50%      { transform: translate(2px, -2px); filter: drop-shadow(0 0 3px var(--laser-blue)); }
  }

  /* 11. GEORGIA TECH: Mechanical compression stamp */
  .anim-gatech {
    animation: gatech-bounce 2.4s ease-in-out infinite;
    transform-origin: center center;
  }
  @keyframes gatech-bounce {
    0%, 100% { transform: translateY(0); }
    40%      { transform: translateY(2px) scaleY(0.92); }
    55%      { transform: translateY(-1.5px) scaleY(1.05); }
    70%      { transform: translateY(0); }
  }
}

/* ═════════════════════════════════════════════════════════════════
   SECTION 6: CAREERS & LIVE ASHBY BOARD
   ═════════════════════════════════════════════════════════════════ */
@layer layout {
  .section-careers {
    padding: 8rem 0;
    border-bottom: 1px solid var(--border-hairline);
    background: var(--bg-surface);
  }

  .careers-layout-grid {
    display: grid;
    grid-template-columns: 1fr 1.25fr;
    gap: 5rem;
    align-items: start;
  }

  .careers-ethos-box p {
    font-size: 1.02rem;
    color: var(--fg-secondary);
    line-height: 1.8;
    margin-bottom: 1.75rem;
  }

  .careers-ethos-box strong {
    color: var(--fg-primary);
  }

  .ashby-board-card {
    background: var(--bg-canvas);
    border: 1px solid var(--border-bold);
    padding: 2.5rem;
  }

  .ashby-board-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-hairline);
    margin-bottom: 1.75rem;
  }

  .ashby-board-top h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
  }

  .ashby-status-pill {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.3rem 0.75rem;
    border: 1px solid var(--border-bold);
  }

  .clean-job-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .clean-job-item a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.15rem 1.4rem;
    border: 1px solid var(--border-hairline);
    transition: all 0.15s ease;
  }

  .clean-job-item a:hover {
    border-color: var(--border-bold);
    background: var(--bg-surface);
    transform: translateX(4px);
  }

  .job-title-clean {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
  }

  .job-meta-clean {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--fg-tertiary);
  }
}

/* ═════════════════════════════════════════════════════════════════
   FOOTER (STARK, MINIMALIST, ARCHITECTURAL)
   ═════════════════════════════════════════════════════════════════ */
@layer layout {
  .site-footer-clean {
    padding: 6rem 0 3.5rem;
    background: var(--bg-canvas);
  }

  .footer-inner-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.25fr;
    gap: 4rem;
    margin-bottom: 5rem;
  }

  .footer-brand-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 900;
    margin-bottom: 1.25rem;
    letter-spacing: 0.05em;
  }

  .footer-brand-desc {
    font-size: 0.875rem;
    color: var(--fg-secondary);
    line-height: 1.7;
    max-width: 320px;
    margin-bottom: 1.75rem;
  }

  .footer-heading {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
  }

  .footer-links-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
  }

  .footer-links-list a {
    font-size: 0.85rem;
    color: var(--fg-secondary);
    transition: color 0.15s ease;
  }

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

  .footer-colophon {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 2.25rem;
    border-top: 1px solid var(--border-hairline);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--fg-tertiary);
    flex-wrap: wrap;
    gap: 1.25rem;
  }
}

/* ═════════════════════════════════════════════════════════════════
   MODAL DIALOG (CLEAN ARCHITECTURAL POPUP)
   ═════════════════════════════════════════════════════════════════ */
@layer components {
  dialog.briefing-modal-clean {
    margin: auto;
    background: var(--bg-canvas);
    color: var(--fg-primary);
    border: 2px solid var(--border-bold);
    padding: 2.5rem;
    max-width: 540px;
    width: 90%;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  }

  dialog.briefing-modal-clean::backdrop {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
  }

  .modal-top-bar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-hairline);
  }

  .modal-heading {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
  }

  .modal-field {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-bottom: 1.35rem;
  }

  .modal-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-secondary);
  }

  .modal-input, .modal-textarea, .modal-select {
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-bold);
    background: var(--bg-canvas);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--fg-primary);
  }

  .modal-input:focus, .modal-textarea:focus, .modal-select:focus {
    outline: none;
    border-width: 2px;
  }
}

/* ═════════════════════════════════════════════════════════════════
   RESPONSIVE MEDIA QUERIES
   ═════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .cad-workbench {
    grid-template-columns: 1fr;
  }

  .cad-viewport {
    border-right: none;
    border-bottom: 1px solid var(--border-hairline);
  }

  .thesis-dual-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .systems-spec-grid {
    grid-template-columns: 1fr;
  }

  .domains-list {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .careers-layout-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .footer-inner-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

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

  .hero-hud-topbar {
    flex-direction: column;
    gap: 1rem;
  }

  .hud-block-right {
    text-align: left;
  }

  .hero-footer-bar {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .matrix-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .domains-list {
    grid-template-columns: 1fr;
  }

  .footer-inner-grid {
    grid-template-columns: 1fr;
  }
}