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

  /* ── LIGHT THEME (default) ── */
  :root {
    --bg:       #F2F1EC;
    --bg-nav:   #F2F1EC;
    --bg-off:   #E8E7E2;
    --bg-card:  #F2F1EC;
    --border:   #D0CFC8;
    --border-sm:#E8E7E2;
    --text:     #0D0D0B;
    --text-sub: #5F5E5A;
    --text-dim: #8C8B86;
    --text-faint:#C8C7C0;
    --violet:   #7A30A0;
    --invert:   #0D0D0B;   /* for marks/icons */
    --invert-bg:#F2F1EC;
    --carbon:   #0D0D0B;
    --graphite: #1C1C1A;
    --slate:    #2E2E2B;
    --steel:    #5F5E5A;
    --stone:    #8C8B86;
    --field:    #C8C7C0;
    --sand:     #D0CFC8;
    --off:      #E8E7E2;
    --white:    #F2F1EC;
    --font:     'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
    --mono:     'JetBrains Mono', 'Courier New', monospace;
  }

  /* ── DARK THEME — deep navy charcoal ── */
  [data-theme="dark"] {
    --bg:       #191C22;
    --bg-nav:   #14171C;
    --bg-off:   #21252D;
    --bg-card:  #1E2128;
    --border:   #2E3340;
    --border-sm:#262B35;
    --text:     #F0EEE9;
    --text-sub: #C8C5BE;
    --text-dim: #8A8880;
    --text-faint:#4A4E58;
    --violet:   #A855D4;
    --invert:   #F0EEE9;
    --invert-bg:#191C22;
    --carbon:   #F0EEE9;
    --graphite: #E0DDD6;
    --slate:    #C8C5BE;
    --steel:    #B0ADA6;
    --stone:    #8A8880;
    --field:    #4A4E58;
    --sand:     #2E3340;
    --off:      #21252D;
    --white:    #191C22;
  }

  /* Theme transitions */
  body, nav, footer, section, .cap-card, .form-box,
  .stats-bar, .stat, .partners-section, .press-section,
  .about-section, .careers-link-section, .manifesto {
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  }

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--carbon);
    font-family: var(--font);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
  }

  /* ── NAV ── */
  nav {
    position: sticky;
    top: 0;
    z-index: 200;
    background: var(--bg-nav);
    border-bottom: 0.5px solid var(--border);
    padding: 0 48px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: box-shadow 0.2s, background 0.3s, border-color 0.3s;
  }
  nav.scrolled { box-shadow: 0 1px 24px rgba(13,13,11,0.07); }
  [data-theme="dark"] nav.scrolled { box-shadow: 0 1px 30px rgba(0,0,0,0.35); }

  /* ── THEME TOGGLE ── */
  .theme-toggle {
    width: 36px; height: 20px;
    border-radius: 10px;
    background: var(--border);
    border: none; cursor: pointer;
    position: relative;
    transition: background 0.25s;
    flex-shrink: 0;
  }
  .theme-toggle::after {
    content: '';
    position: absolute;
    top: 3px; left: 3px;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--bg-nav);
    transition: transform 0.25s, background 0.25s;
  }
  [data-theme="dark"] .theme-toggle::after {
    transform: translateX(16px);
    background: var(--violet);
  }
  [data-theme="dark"] .theme-toggle {
    background: #2A2A27;
  }

  .nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
  }
  .nav-wordmark {
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 6px;
    color: var(--carbon);
  }
  .nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
  }
  .nav-link {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--stone);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.15s;
  }
  .nav-link:hover { color: var(--carbon); }
  .nav-shop {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--violet);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.15s;
    border-bottom: 0.5px solid rgba(122,48,160,0.3);
    padding-bottom: 1px;
  }
  .nav-shop:hover { color: var(--carbon); border-color: transparent; }
  .nav-cta {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--invert-bg);
    background: var(--invert);
    padding: 10px 20px;
    text-decoration: none;
    text-transform: uppercase;
    transition: background 0.15s;
  }
  .nav-cta:hover { background: var(--violet); }

  /* ── HAMBURGER ── */
  .nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
  }
  .nav-burger span {
    display: block;
    height: 1px;
    background: var(--invert);
    transition: transform 0.25s, opacity 0.25s, width 0.25s;
    transform-origin: center;
  }
  .nav-burger span:nth-child(1) { width: 100%; }
  .nav-burger span:nth-child(2) { width: 70%; }
  .nav-burger span:nth-child(3) { width: 100%; }
  .nav-burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); width: 100%; }
  .nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  /* ── MOBILE MENU ── */
  .mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    z-index: 190;
    padding: 40px 24px;
    flex-direction: column;
    gap: 0;
    border-top: 0.5px solid var(--border);
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.2s, transform 0.2s;
    pointer-events: none;
  }
  .mobile-menu.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .mobile-menu-link {
    font-size: 12px;
    letter-spacing: 4px;
    color: var(--stone);
    text-decoration: none;
    text-transform: uppercase;
    padding: 18px 0;
    border-bottom: 0.5px solid var(--border-sm);
    transition: color 0.15s;
    display: block;
  }
  .mobile-menu-link:hover { color: var(--carbon); }
  .mobile-menu-link.violet { color: var(--violet); }
  .mobile-menu-cta {
    margin-top: 32px;
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--invert-bg);
    background: var(--invert);
    padding: 16px 28px;
    text-decoration: none;
    text-transform: uppercase;
    text-align: center;
    display: block;
  }

  /* ── VIOLET RULE ── */
  .v-rule { height: 1.5px; background: var(--violet); }

  /* ── SECTION DIVIDER ── */
  .section-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 32px 48px;
    background: var(--bg);
  }
  .divider-line {
    flex: 1;
    height: 0.5px;
    background: var(--border);
  }
  .divider-mark {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* ── REVEAL ANIMATION ── */
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1);
  }
  .reveal.visible { opacity: 1; transform: translateY(0); }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }

  /* ── HERO ── */
  .hero {
    padding: 96px 48px 80px;
    display: grid;
    grid-template-columns: 1fr 460px;
    gap: 64px;
    align-items: center;
    border-bottom: 0.5px solid var(--border);
  }
  .eyebrow {
    font-size: 10px;
    letter-spacing: 5px;
    color: var(--violet);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
  }
  .eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--violet);
    flex-shrink: 0;
    animation: pulse-dot 2.5s ease-in-out infinite;
  }
  @keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.7); }
  }
  .hero h1 {
    font-size: 80px;
    font-weight: 500;
    letter-spacing: 3px;
    line-height: 0.92;
    color: var(--carbon);
    margin-bottom: 28px;
  }
  .hero-sub {
    font-size: 15px;
    color: var(--steel);
    line-height: 1.8;
    max-width: 400px;
    margin-bottom: 40px;
  }
  .hero-actions { display: flex; gap: 16px; align-items: center; }
  .btn-primary {
    font-size: 11px;
    letter-spacing: 3px;
    background: var(--invert);
    color: var(--invert-bg);
    padding: 14px 28px;
    cursor: pointer;
    text-transform: uppercase;
    text-decoration: none;
    display: inline-block;
    transition: background 0.15s;
  }
  .btn-primary:hover { background: var(--violet); }
  .btn-secondary {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--stone);
    border-bottom: 0.5px solid var(--field);
    padding-bottom: 2px;
    text-transform: uppercase;
    text-decoration: none;
    transition: color 0.15s;
  }
  .btn-secondary:hover { color: var(--carbon); }

  /* ── HERO SVG DIAGRAM ── */
  .hero-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  /* Animated elements inside hero SVG */
  .beam-target {
    animation: track-ping 3s ease-in-out infinite;
  }
  @keyframes track-ping {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
  }
  .beam-line {
    stroke-dasharray: 120;
    stroke-dashoffset: 120;
    animation: beam-fire 3s ease-out infinite;
  }
  @keyframes beam-fire {
    0% { stroke-dashoffset: 120; opacity: 0; }
    20% { opacity: 1; }
    60% { stroke-dashoffset: 0; opacity: 1; }
    100% { stroke-dashoffset: 0; opacity: 0.35; }
  }
  .radar-sweep {
    transform-origin: 0px 10px;
    animation: sweep 5s linear infinite;
  }
  @keyframes sweep {
    from { transform: rotate(-50deg); opacity: 0.6; }
    to { transform: rotate(50deg); opacity: 0; }
  }

  /* ── STATS ── */
  .stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-bottom: 0.5px solid var(--border);
  }
  .stat {
    padding: 28px 48px;
    border-right: 0.5px solid var(--border);
  }
  .stat:last-child { border-right: none; }
  .stat-val {
    font-size: 34px;
    font-weight: 500;
    font-family: var(--mono);
    color: var(--carbon);
    letter-spacing: 1px;
  }
  .stat-label {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--stone);
    margin-top: 4px;
    text-transform: uppercase;
  }

  /* ── SECTIONS ── */
  .section { padding: 80px 48px; border-bottom: 0.5px solid var(--border); }
  .section-tag {
    font-size: 11px;
    letter-spacing: 5px;
    color: var(--steel);
    margin-bottom: 32px;
    text-transform: uppercase;
    font-weight: 500;
  }
  .section-h {
    font-size: 38px;
    font-weight: 500;
    letter-spacing: 1px;
    color: var(--carbon);
    line-height: 1.15;
    margin-bottom: 14px;
  }
  .section-body {
    font-size: 14px;
    color: var(--steel);
    line-height: 1.8;
    max-width: 500px;
  }
  .v-bar-sm {
    width: 32px;
    height: 1.5px;
    background: var(--violet);
    margin: 18px 0;
  }
  .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; }

  /* ── CAPABILITY CARDS ── */
  .card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    background: var(--sand);
    border: 0.5px solid var(--border);
    margin-top: 48px;
  }
  .cap-card {
    background: var(--bg);
    padding: 32px 28px;
    transition: background 0.2s;
  }
  .cap-card:hover { background: var(--bg-off); }
  .cap-card + .cap-card { border-left: 0.5px solid var(--border); }
  .cap-tag {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--violet);
    margin-bottom: 16px;
    text-transform: uppercase;
  }
  .cap-title {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: var(--carbon);
    margin-bottom: 10px;
  }
  .cap-body {
    font-size: 13px;
    color: var(--stone);
    line-height: 1.7;
  }

  /* ── SYSTEM SECTION ── */
  .system-section {
    padding: 80px 48px;
    border-bottom: 0.5px solid var(--border);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
  }
  .spec-row {
    display: flex;
    justify-content: space-between;
    padding: 11px 0;
    border-bottom: 0.5px solid var(--border-sm);
  }
  .spec-row:last-child { border-bottom: none; }
  .spec-key {
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--stone);
    text-transform: uppercase;
  }
  .spec-val {
    font-size: 13px;
    font-family: var(--mono);
    color: var(--graphite);
  }

  /* ── ABOUT SECTION ── */
  .about-section {
    padding: 80px 48px;
    border-bottom: 0.5px solid var(--border);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
  }
  .about-principles {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 48px;
  }
  .principle {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 24px;
    padding: 20px 0;
    border-bottom: 0.5px solid var(--border-sm);
    align-items: baseline;
  }
  .principle:first-child { border-top: 0.5px solid var(--border-sm); }
  .principle-num {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--violet);
    font-family: var(--mono);
  }
  .principle-text {
    font-size: 13px;
    color: var(--steel);
    line-height: 1.7;
  }
  .principle-text strong {
    font-weight: 500;
    color: var(--carbon);
    display: block;
    margin-bottom: 4px;
    font-size: 14px;
  }

  .about-right-quote {
    margin-top: 48px;
    border-left: 1.5px solid var(--violet);
    padding: 20px 24px;
    background: rgba(122,48,160,0.03);
  }
  .about-quote-text {
    font-size: 17px;
    font-weight: 500;
    letter-spacing: 0.3px;
    line-height: 1.6;
    color: var(--carbon);
    margin-bottom: 16px;
  }
  .about-quote-attr {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--stone);
    text-transform: uppercase;
  }

  /* ── PARTNERS SECTION ── */
  .partners-section {
    padding: 48px 48px;
    border-bottom: 0.5px solid var(--border);
  }
  .partners-logo-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    border-top: 0.5px dashed var(--sand);
    border-bottom: 0.5px dashed var(--sand);
    padding: 40px 0;
  }
  .partner-logo-cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    gap: 14px;
    padding: 0 24px;
    flex: 1;
  }
  .partner-divider {
    width: 0.5px;
    height: 60px;
    background: var(--sand);
    flex-shrink: 0;
  }
  .partner-logo-text {
    font-size: 24px;
    font-weight: 500;
    font-family: var(--font);
    color: #8C8B86;
    letter-spacing: 2px;
    line-height: 1;
    height: 56px;
    display: flex;
    align-items: center;
  }
  .partner-img {
    height: 56px;
    width: auto;
    object-fit: contain;
    filter: grayscale(1) opacity(0.55);
    transition: filter 0.2s;
  }
  .partner-img-wide { height: 56px; }
  .partner-img:hover { filter: grayscale(0.3) opacity(0.85); }
  .partner-logo-name {
    font-size: 11px;
    color: var(--stone);
    text-align: center;
    line-height: 1.5;
    letter-spacing: 0.3px;
    min-height: 2em;
  }

  /* ── CAREERS SECTION ── */
  .careers-section {
    padding: 80px 48px;
    border-bottom: 0.5px solid var(--border);
  }
  .careers-header {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: baseline;
    margin-bottom: 40px;
    gap: 32px;
  }
  .careers-count {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--violet);
    text-transform: uppercase;
    font-family: var(--mono);
    white-space: nowrap;
  }
  .job-list { display: flex; flex-direction: column; }
  .job-item {
    display: grid;
    grid-template-columns: 1fr 160px 120px;
    gap: 32px;
    padding: 20px 0;
    border-bottom: 0.5px solid var(--border-sm);
    align-items: center;
    text-decoration: none;
    color: inherit;
    transition: background 0.15s;
    cursor: pointer;
  }
  .job-item:first-child { border-top: 0.5px solid var(--border-sm); }
  .job-item:hover .job-title { color: var(--violet); }
  .job-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--carbon);
    transition: color 0.15s;
  }
  .job-dept {
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--stone);
    text-transform: uppercase;
  }
  .job-loc {
    font-size: 11px;
    font-family: var(--mono);
    color: var(--stone);
    text-align: right;
  }
  .careers-cta {
    margin-top: 32px;
    display: flex;
    align-items: center;
    gap: 24px;
  }

  /* ── CAREERS LINK ── */
  .careers-link-section {
    padding: 40px 48px;
    border-bottom: 0.5px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .careers-link-left { display: flex; flex-direction: column; gap: 4px; }

  /* ── PRESS SECTION ── */
  .press-section {
    padding: 80px 48px;
    border-bottom: 0.5px solid var(--border);
  }
  .press-grid {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  .press-item {
    display: grid;
    grid-template-columns: 120px 1fr 120px;
    gap: 32px;
    padding: 24px 0;
    border-bottom: 0.5px solid var(--border-sm);
    align-items: baseline;
    text-decoration: none;
    color: inherit;
    transition: background 0.15s;
  }
  .press-item:first-child { border-top: 0.5px solid var(--border-sm); }
  .press-item:hover .press-headline { color: var(--violet); }
  .press-date {
    font-size: 11px;
    font-family: var(--mono);
    color: var(--stone);
    letter-spacing: 1px;
  }
  .press-headline {
    font-size: 14px;
    font-weight: 500;
    color: var(--carbon);
    letter-spacing: 0.2px;
    transition: color 0.15s;
    line-height: 1.4;
  }
  .press-pub {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--stone);
    text-transform: uppercase;
    text-align: right;
  }

  /* ── MANIFESTO ── */
  .manifesto {
    padding: 96px 48px;
    border-bottom: 0.5px solid var(--border);
    text-align: center;
    background: #0D0D0B;
    position: relative;
    overflow: hidden;
  }
  .manifesto::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 60% 60% at 50% 50%, rgba(122,48,160,0.12) 0%, transparent 70%);
    pointer-events: none;
  }
  .manifesto .section-tag { color: var(--violet); }
  .manifesto-q {
    font-size: 34px;
    font-weight: 500;
    letter-spacing: 1px;
    color: var(--white);
    line-height: 1.35;
    max-width: 600px;
    margin: 0 auto 20px;
  }
  .manifesto-body {
    font-size: 14px;
    color: var(--stone);
    line-height: 1.8;
    max-width: 480px;
    margin: 0 auto;
  }
  .manifesto .v-bar-sm { margin: 20px auto; }

  /* ── CONTACT ── */
  .contact-section {
    padding: 80px 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: start;
  }
  .contact-label {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--stone);
    margin-bottom: 4px;
    text-transform: uppercase;
  }
  .contact-val {
    font-size: 14px;
    color: var(--graphite);
    letter-spacing: 0.3px;
    margin-bottom: 12px;
  }
  .form-box {
    background: var(--bg-off);
    border: 0.5px solid var(--border);
    padding: 32px;
  }
  .field { margin-bottom: 14px; }
  .field-label {
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--stone);
    margin-bottom: 6px;
    text-transform: uppercase;
    display: block;
  }
  .field-input {
    height: 36px;
    border: 0.5px solid var(--border);
    background: var(--bg);
    width: 100%;
    padding: 0 12px;
    font-family: var(--font);
    font-size: 14px;
    color: var(--carbon);
    outline: none;
    transition: border-color 0.15s;
    -webkit-appearance: none;
    border-radius: 0;
  }
  .field-input:focus { border-color: var(--violet); }

  /* ── FOOTER ── */
  footer {
    background: var(--bg-off);
    padding: 24px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 0.5px solid var(--border);
  }
  .footer-left {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .footer-links { display: flex; gap: 28px; }
  .footer-link {
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--field);
    text-decoration: none;
    text-transform: uppercase;
    transition: color 0.15s;
  }
  .footer-link:hover { color: var(--carbon); }

  /* ── MARK SVG ── */
  .mark-svg { display: inline-block; }

  /* ── HUD bars — desktop: inside top-row flex, column layout ── */
  .sr-hud,.uv-hud{display:flex;flex-direction:column;gap:4px;text-align:right;font-family:var(--mono)}

  /* ── TABLET ── */
  @media (max-width: 1100px) {
    .stats-bar { grid-template-columns: repeat(2, 1fr); }
    .stat:nth-child(2n) { border-right: none; }
    .stat:nth-child(n+3) { border-top: 0.5px solid var(--border); }
  }

  /* ── MOBILE ── */
  @media (max-width: 900px) {
    body { font-size: 15px; }
    nav { padding: 0 20px; height: 56px; }
    .nav-links { display: none; }
    .nav-burger { display: flex; }
    .mobile-menu { display: flex; top: 56px; }

    /* Hero — show aperture mark, stacked */
    .hero {
      grid-template-columns: 1fr;
      padding: 48px 20px 40px;
      gap: 24px;
      text-align: center;
    }
    .hero h1 { font-size: 48px; letter-spacing: 4px; }
    .hero-sub { margin: 0 auto 24px; text-align: center; }
    .hero-actions { justify-content: center; flex-wrap: wrap; gap: 12px; }
    .eyebrow { justify-content: center; }
    .hero-diagram {
      display: flex !important;
      order: -1;
      justify-content: center;
    }
    .hero-diagram svg { width: 180px; height: 160px; }

    /* Stats — 2x2 centered */
    .stats-bar { grid-template-columns: 1fr 1fr; }
    .stat { padding: 20px; text-align: center; }
    .stat:nth-child(2n) { border-right: none; }
    .stat:nth-child(n+3) { border-top: 0.5px solid var(--border); }
    .stat:nth-child(3) { border-right: 0.5px solid var(--border); }
    .stat-val { font-size: 28px; }
    .stat-label { font-size: 9px; letter-spacing: 2px; }

    /* Sections */
    .section, .system-section, .contact-section, .press-section { padding: 48px 20px; }
    .section-h { font-size: 28px; }
    .two-col, .system-section, .contact-section { grid-template-columns: 1fr; gap: 32px; }

    /* Cards — horizontal scroll */
    .card-grid {
      display: flex;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
      gap: 0;
      margin: 48px -20px 0;
      padding: 0 20px;
      scrollbar-width: thin;
      scrollbar-color: var(--violet) transparent;
    }
    .card-grid::-webkit-scrollbar { height: 3px; }
    .card-grid::-webkit-scrollbar-track { background: transparent; }
    .card-grid::-webkit-scrollbar-thumb { background: var(--violet); border-radius: 2px; }
    .cap-card {
      flex: 0 0 75vw;
      scroll-snap-align: start;
      padding: 24px 20px;
      border-left: none;
      border-right: 0.5px solid var(--border);
    }
    .cap-card + .cap-card { border-left: none; border-top: none; }
    .cap-tag { font-size: 9px; margin-bottom: 10px; }
    .cap-title { font-size: 13px; }
    .cap-body { font-size: 12px; }

    /* About */
    .about-section { grid-template-columns: 1fr; gap: 32px; padding: 48px 20px; }
    .about-right-quote { margin-top: 0; }
    .about-quote-text { font-size: 15px; }
    .principle { grid-template-columns: 56px 1fr; gap: 16px; padding: 16px 0; }

    /* Press */
    .press-item { grid-template-columns: 72px 1fr; gap: 12px; padding: 16px 0; }
    .press-pub { display: none; }
    .press-headline { font-size: 13px; }
    .press-date { font-size: 10px; }

    /* ═══ PARTNERS — horizontal scroll ═══ */
    .partners-section { padding: 32px 0; overflow: hidden; }
    .partners-section .section-tag { padding: 0 20px; }
    .partners-logo-strip {
      display: flex;
      flex-wrap: nowrap;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
      gap: 0;
      padding: 24px 20px;
      scrollbar-width: thin;
      scrollbar-color: var(--border) transparent;
    }
    .partners-logo-strip::-webkit-scrollbar { height: 2px; }
    .partners-logo-strip::-webkit-scrollbar-track { background: transparent; }
    .partners-logo-strip::-webkit-scrollbar-thumb { background: var(--violet); border-radius: 2px; }
    .partner-logo-cell {
      flex: 0 0 auto;
      min-width: 140px;
      padding: 12px 20px;
      scroll-snap-align: start;
    }
    .partner-divider { display: none; }
    .partner-img, .partner-img-wide { height: 48px; }
    .partner-logo-name { font-size: 10px; white-space: nowrap; }

    /* Careers */
    .careers-section { padding: 48px 20px; }
    .careers-header { grid-template-columns: 1fr; gap: 8px; }
    .job-item { grid-template-columns: 1fr; gap: 4px; padding: 16px 0; }
    .job-loc { text-align: left; }
    .careers-link-section {
      flex-direction: column; gap: 20px; align-items: stretch;
      padding: 32px 20px; text-align: center;
    }
    .careers-link-left { align-items: center; }
    .careers-link-section .btn-primary { display: block; text-align: center; }

    /* ═══ 3D SECTIONS — stacked layout ═══ */
    #systems,#platform{display:flex !important;flex-direction:column !important;position:relative !important;min-height:auto !important;overflow:visible !important}
    #systems canvas,#platform canvas{position:relative !important;width:100% !important;height:56vw !important;min-height:280px !important;max-height:420px !important;display:block !important;flex-shrink:0}
    #systems>div,#platform>div{min-height:auto !important;padding:24px 20px 28px !important}
    #systems>div:last-child,#platform>div:last-child{position:relative !important;background:var(--bg) !important;border-top:none !important;z-index:1 !important;inset:auto !important;top:auto !important;left:auto !important;right:auto !important;bottom:auto !important;order:-1 !important}
    #systems>div:last-child>div:first-child>div:first-child,#platform>div:last-child>div:first-child>div:first-child{background:transparent !important;backdrop-filter:none !important;-webkit-backdrop-filter:none !important;border:none !important;border-radius:0 !important;padding:0 !important;max-width:100% !important}
    #systems>div:last-child>div:first-child,#platform>div:last-child>div:first-child{flex-direction:column !important;gap:16px !important}
    #systems>div:last-child>div:last-child,#platform>div:last-child>div:last-child{display:none !important}
    /* ── HUD bars — mobile: horizontal bar ── */
    .sr-hud,.uv-hud{flex-direction:row !important}

    /* ── SR HUD (Sunray) — 3 fixed cells: status 45% | kills 30% | tracking 25% ── */
    .sr-hud{display:flex !important;align-items:stretch;gap:0;padding:0 !important;background:var(--bg-off) !important;border-top:none !important;border-bottom:.5px solid var(--border) !important;font-size:9px !important;letter-spacing:2px;white-space:nowrap;text-align:center !important;flex-wrap:nowrap;width:100%}
    .sr-hud-status,.sr-hud-kills,.sr-hud-track{padding:10px 6px !important;display:flex !important;flex-direction:column !important;align-items:center !important;justify-content:center !important;gap:2px !important;margin:0 !important;overflow:hidden}
    .sr-hud-status{flex:0 0 45% !important;border-right:.5px solid var(--border)}
    .sr-hud-kills{flex:0 0 30% !important;border-right:.5px solid var(--border)}
    .sr-hud-track{flex:0 0 25% !important}
    .sr-hud-status>div{display:flex;align-items:center;gap:4px;justify-content:center}
    #sr-status{font-size:8px !important;letter-spacing:2px;overflow:hidden;text-overflow:ellipsis}
    #sr-kills{font-variant-numeric:tabular-nums;font-size:18px !important}
    #sr-track{font-variant-numeric:tabular-nums;font-size:14px !important}

    /* ── UV HUD (Universal) — 5 fixed cells: status 30% | total 22% | land 16% | sea 16% | space 16% ── */
    .uv-hud{display:flex !important;align-items:stretch;gap:0;padding:0 !important;background:var(--bg-off) !important;border-top:none !important;border-bottom:.5px solid var(--border) !important;font-size:9px !important;letter-spacing:2px;white-space:nowrap;text-align:center !important;flex-wrap:nowrap;width:100%}
    .uv-hud-status,.uv-hud-total,.uv-hud-land,.uv-hud-sea,.uv-hud-space{padding:10px 4px !important;display:flex !important;flex-direction:column !important;align-items:center !important;justify-content:center !important;gap:2px !important;margin:0 !important;overflow:hidden}
    .uv-hud-status{flex:0 0 30% !important;border-right:.5px solid var(--border)}
    .uv-hud-total{flex:0 0 22% !important;border-right:.5px solid var(--border)}
    .uv-hud-land{flex:0 0 16% !important;border-right:.5px solid var(--border)}
    .uv-hud-sea{flex:0 0 16% !important;border-right:.5px solid var(--border)}
    .uv-hud-space{flex:0 0 16% !important}
    .uv-hud-status>div{display:flex;align-items:center;gap:4px;justify-content:center}
    #uv-status{font-size:8px !important;letter-spacing:2px;overflow:hidden;text-overflow:ellipsis}
    #uv-total{font-variant-numeric:tabular-nums;font-size:18px !important}
    #uv-land,#uv-sea,#uv-space{font-variant-numeric:tabular-nums;font-size:13px !important}

    /* Content cards — full width, no backdrop on mobile */
    .sr-card,.uv-card{max-width:100% !important;padding:20px !important;opacity:1 !important;backdrop-filter:none !important;-webkit-backdrop-filter:none !important;border:none !important;background:transparent !important}
    .sr-card .section-h{font-size:22px !important}
    .sr-card .section-body{max-width:100% !important}
    .sr-card .spec-row{padding:8px 0 !important}

    /* Platform content text — full width on mobile */
    .uv-title{max-width:100% !important;font-size:24px !important}
    .uv-desc{max-width:100% !important}

    .sr-bottom,.uv-bottom{display:none !important}

    /* Contact */
    .contact-section { padding: 48px 20px; }
    .form-box { padding: 24px; }
    .contact-val { font-size: 13px; }

    /* Footer */
    footer { padding: 20px; flex-direction: column; gap: 12px; text-align: center; }
    .footer-left { flex-direction: column; gap: 8px; }

    /* Buttons */
    .btn-primary, .btn-secondary { font-size: 10px; padding: 14px 24px; }

    /* Manifesto */
    .manifesto { padding: 64px 20px; }
    .manifesto-q { font-size: 24px; max-width: 100%; }
    .manifesto-body { font-size: 13px; }
  }

  /* ── SMALL PHONES ── */
  @media (max-width: 480px) {
    .hero h1 { font-size: 38px; letter-spacing: 3px; }
    .hero { padding: 36px 16px 28px; }
    .hero-diagram svg { width: 140px; height: 126px; }
    .hero-sub { font-size: 13px; }

    .stats-bar { grid-template-columns: 1fr 1fr; }
    .stat { padding: 16px; }
    .stat-val { font-size: 22px; }

    .section, .contact-section, .press-section { padding: 36px 16px; }
    .section-h { font-size: 22px; }

    .cap-card { flex: 0 0 80vw; }

    .partners-section { padding: 24px 0; }
    .partner-logo-cell { min-width: 120px; padding: 10px 16px; }
    .partner-img, .partner-img-wide { height: 40px; }

    .manifesto { padding: 48px 16px; }
    .manifesto-q { font-size: 20px; }
    .form-box { padding: 20px; }
    #systems canvas,#platform canvas{height:52vw !important;min-height:220px !important;max-height:320px !important}
    #systems>div:last-child,#platform>div:last-child{padding:20px 16px 24px !important}
    .sr-hud,.uv-hud{font-size:7px !important;letter-spacing:1.5px}
    #sr-status,#uv-status{font-size:7px !important;letter-spacing:1.5px}
    #sr-kills,#uv-total{font-size:15px !important}
    #sr-track{font-size:11px !important}
    #uv-land,#uv-sea,#uv-space{font-size:10px !important}
    .sr-hud-status{flex:0 0 38% !important}
    .sr-hud-kills{flex:0 0 34% !important}
    .sr-hud-track{flex:0 0 28% !important}
    .uv-hud-status{flex:0 0 28% !important}
    .uv-hud-total{flex:0 0 20% !important}

    #systems { min-height: 380px !important; }
    #platform { min-height: 400px !important; }
  }

  /* ── SAFE AREA (iPhone notch) ── */
  @supports (padding: env(safe-area-inset-bottom)) {
    footer { padding-bottom: calc(20px + env(safe-area-inset-bottom)); }
    .mobile-menu { padding-bottom: calc(40px + env(safe-area-inset-bottom)); }
  }

  /* ── SVG THEME ADAPTATION ── */
  :root { --svg-ink: #0D0D0B; --svg-ink-light: #0D0D0B; }
  [data-theme="dark"] { --svg-ink: #E8E6DF; --svg-ink-light: #E8E6DF; }

  .hero-diagram svg line,
  .hero-diagram svg path:not([fill="#7A30A0"]):not([stroke="#7A30A0"]),
  .hero-diagram svg circle:not([stroke="#7A30A0"]):not([fill="#7A30A0"]),
  .hero-diagram svg rect,
  .system-section svg line,
  .system-section svg circle:not([stroke="#7A30A0"]):not([fill="#7A30A0"]),
  .system-section svg polygon,
  .nav-logo svg polygon,
  .nav-logo svg circle {
    transition: stroke 0.3s, fill 0.3s;
  }