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

    :root {
      --cream: #FFFFFF;
      --warm-white: #F4F7FF;
      --dark: #0B1C3D;
      --dark-2: #0D2451;
      --mid: #3A4E72;
      --light-mid: #8A9AB8;
      --gold: #C4973A;
      --gold-light: #E8C97D;
      --blue: #1A3A8F;
      --blue-mid: #2952B3;
      --black: #05080F;
      --pure-white: #FFFFFF;
      --font-display: 'Cormorant', Georgia, serif;
      --font-body: 'Jost', sans-serif;
      --section-pad: clamp(80px, 12vw, 160px);
    }

    html { scroll-behavior: smooth; }

    .skip-nav:focus{top:0;}

    /* Focus visible styles for keyboard navigation */
    :focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: 2px;
    }
    a:focus:not(:focus-visible),
    button:focus:not(:focus-visible) {
      outline: none;
    }

    body {
      font-family: var(--font-body);
      color: var(--dark);
      background: var(--cream);
      overflow-x: hidden;
    }

    /* =====================
       NAV
    ===================== */
    nav {
      position: fixed;
      top: 0; left: 0;
      width: 100%;
      z-index: 500;
      padding: 28px clamp(24px, 5vw, 80px);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: background 0.4s, padding 0.4s, box-shadow 0.4s;
    }
    nav.scrolled {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      padding: 18px clamp(24px, 5vw, 80px);
      box-shadow: 0 1px 0 rgba(11, 28, 61, 0.1);
    }
    nav.over-dark {
      background: transparent;
    }
    nav.over-dark .nav-logo,
    nav.over-dark .nav-links a {
      color: var(--pure-white);
    }
    nav.over-dark.scrolled {
      background: rgba(11, 28, 61, 0.92);
    }
    .nav-logo {
      font-family: var(--font-display);
      font-weight: 300;
      font-size: 22px;
      letter-spacing: 0.38em;
      color: var(--dark);
      text-decoration: none;
      text-transform: uppercase;
      transition: color 0.3s;
    }
    .nav-links {
      display: flex;
      gap: 36px;
      list-style: none;
    }
    .nav-links a {
      font-family: var(--font-body);
      font-size: 11px;
      letter-spacing: 0.28em;
      text-transform: uppercase;
      color: var(--dark);
      text-decoration: none;
      transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--gold); }
    .nav-links a { min-height: 44px; display: inline-flex; align-items: center; }
    .nav-links a.active { color: var(--gold); }
    .nav-cta-gold {
      border: 1px solid rgba(196,151,58,0.4);
      border-radius: 2px;
      padding: 5px 13px;
      color: var(--gold)!important;
      transition: all .2s!important;
    }
    .nav-cta-gold:hover { background: rgba(196,151,58,0.08)!important; border-color: var(--gold)!important; }

    /* ── HAMBURGER (mobile only) ── */
    .nav-hamburger {
      display: none;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 5px;
      width: 40px; height: 40px;
      background: none; border: none; cursor: pointer;
      padding: 4px; border-radius: 4px;
      transition: opacity .2s;
      z-index: 600;
    }
    .nav-hamburger:hover { opacity: 0.7; }
    .nav-hamburger span {
      display: block;
      width: 22px; height: 1.5px;
      background: var(--dark);
      transition: transform .25s, opacity .25s;
      border-radius: 2px;
    }
    /* X state */
    .nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
    .nav-hamburger.open span:nth-child(2) { opacity: 0; }
    .nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

    /* White bars when over dark sections */
    nav.over-dark .nav-hamburger span,
    nav.over-dark .nav-hamburger.open span { background: var(--pure-white); }

    /* ── MOBILE MENU DRAWER ── */
    #mobile-menu {
      display: none;
      position: fixed;
      top: 0; left: 0; right: 0;
      background: rgba(255,255,255,0.97);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      z-index: 490;
      padding: 0 clamp(16px, 5vw, 32px);
      padding-top: 72px; /* below nav */
      padding-bottom: 32px;
      box-shadow: 0 4px 32px rgba(11,28,61,0.12);
      transform: translateY(-100%);
      transition: transform .3s cubic-bezier(0.32, 0.72, 0, 1);
    }
    #mobile-menu.open {
      transform: translateY(0);
    }
    #mobile-menu ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    #mobile-menu ul li a {
      display: block;
      padding: 14px 0;
      font-family: var(--font-body);
      font-size: 13px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--dark);
      text-decoration: none;
      border-bottom: 1px solid rgba(11,28,61,0.07);
      transition: color .2s;
    }
    #mobile-menu ul li:last-child a { border-bottom: none; }
    #mobile-menu ul li a:hover { color: var(--gold); }

    /* =====================
       SECTION 1: LIGHT INTRO
    ===================== */
    #light-intro {
      position: relative;
      width: 100%;
      /* 100dvh = dynamic viewport height (shrinks when mobile browser toolbar hides) */
      height: 100vh;
      height: 100dvh;
      background: #050810;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    /* The orb */
    .light-orb {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #FFFFFF;
      transform: translate(-50%, -50%);
      animation: orbExpand 3.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
      z-index: 2;
      pointer-events: none;
    }

    @keyframes orbExpand {
      0% {
        width: 4px;
        height: 4px;
        opacity: 0;
        box-shadow:
          0 0 8px 4px rgba(255,255,255,0.95),
          0 0 20px 10px rgba(255,255,255,0.5);
      }
      8% {
        opacity: 1;
        width: 8px;
        height: 8px;
        box-shadow:
          0 0 30px 20px rgba(255,255,255,1),
          0 0 80px 50px rgba(255,255,255,0.7),
          0 0 140px 100px rgba(255,255,255,0.3);
      }
      30% {
        width: 24px;
        height: 24px;
        box-shadow:
          0 0 80px 60px rgba(255,255,255,1),
          0 0 200px 140px rgba(255,255,255,0.8),
          0 0 400px 280px rgba(255,255,255,0.4),
          0 0 700px 500px rgba(255,240,200,0.2);
      }
      65% {
        width: 120px;
        height: 120px;
        box-shadow:
          0 0 200px 160px rgba(255,255,255,1),
          0 0 500px 400px rgba(255,255,255,0.95),
          0 0 900px 700px rgba(255,248,220,0.7);
      }
      100% {
        width: 4000px;
        height: 4000px;
        opacity: 1;
        box-shadow: 0 0 0 0 transparent;
      }
    }

    /* Background fade from dark to white */
    .intro-bg-fill {
      position: absolute;
      inset: 0;
      background: #FFFFFF;
      opacity: 0;
      animation: bgFade 3.2s ease-in-out forwards;
      z-index: 1;
      pointer-events: none;
    }
    @keyframes bgFade {
      0%   { opacity: 0; }
      50%  { opacity: 0; }
      80%  { opacity: 0.7; }
      100% { opacity: 1; }
    }

    /* Floating particles (light motes) */
    #particles-canvas {
      position: absolute;
      top: 0; left: 0;
      width: 100%; height: 100%;
      pointer-events: none;
      z-index: 3;
      opacity: 0;
      animation: particleFadeIn 1s ease 2.5s forwards;
      will-change: opacity;
    }
    @keyframes particleFadeIn {
      to { opacity: 1; }
    }

    /* Wordmark appears after light fills */
    .intro-wordmark {
      position: relative;
      z-index: 4;
      font-family: var(--font-display);
      font-weight: 300;
      font-size: clamp(44px, 7vw, 88px);
      letter-spacing: 0.45em;
      color: var(--dark);
      text-transform: uppercase;
      opacity: 0;
      animation: wordmarkReveal 1.4s ease-out 2.8s forwards;
    }
    @keyframes wordmarkReveal {
      from { opacity: 0; transform: translateY(12px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    .scroll-hint {
      position: absolute;
      bottom: 44px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 4;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
      opacity: 0;
      animation: wordmarkReveal 1.2s ease-out 3.8s forwards;
    }
    .scroll-hint span {
      font-size: 10px;
      letter-spacing: 0.35em;
      text-transform: uppercase;
      color: var(--light-mid);
    }
    .scroll-line {
      width: 1px;
      height: 40px;
      background: linear-gradient(to bottom, var(--light-mid), transparent);
      animation: scrollPulse 2s ease-in-out 4.2s infinite;
      transform-origin: top;
      transform: scaleY(0);
    }
    @keyframes scrollPulse {
      0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
      50%  { transform: scaleY(1); transform-origin: top; }
      51%  { transform-origin: bottom; }
      100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
    }

    /* =====================
       SUBSCRIBE OVERLAY
    ===================== */
    #subscribe-overlay {
      position: fixed;
      inset: 0;
      background: rgba(244, 247, 255, 0.96);
      backdrop-filter: blur(28px);
      -webkit-backdrop-filter: blur(28px);
      z-index: 1000;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.7s ease;
    }
    #subscribe-overlay.visible {
      opacity: 1;
      pointer-events: auto;
    }
    .subscribe-content {
      text-align: center;
      padding: 64px 40px;
      max-width: 540px;
    }
    .subscribe-headline {
      font-family: var(--font-display);
      font-weight: 300;
      font-size: clamp(38px, 5.5vw, 58px);
      line-height: 1.15;
      color: var(--dark);
      margin-bottom: 10px;
    }
    .subscribe-headline em {
      font-style: italic;
      color: var(--gold);
    }
    .subscribe-sub {
      font-size: 13px;
      letter-spacing: 0.08em;
      color: var(--mid);
      font-weight: 300;
      margin-bottom: 44px;
    }
    .subscribe-form {
      display: flex;
      max-width: 420px;
      margin: 0 auto 22px;
      border: 1px solid rgba(196, 151, 58, 0.35);
    }
    .subscribe-form input {
      flex: 1;
      padding: 15px 20px;
      border: none;
      background: transparent;
      font-family: var(--font-body);
      font-size: 13px;
      letter-spacing: 0.05em;
      color: var(--dark);
      outline: none;
    }
    .subscribe-form input::placeholder { color: var(--light-mid); }
    .subscribe-form button {
      padding: 15px 26px;
      background: var(--dark);
      border: none;
      color: var(--cream);
      font-family: var(--font-body);
      font-size: 10px;
      letter-spacing: 0.28em;
      text-transform: uppercase;
      cursor: pointer;
      transition: background 0.25s;
    }
    .subscribe-form button:hover { background: var(--blue-mid); }
    .subscribe-dismiss {
      font-size: 10px;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      color: var(--light-mid);
      cursor: pointer;
      background: none;
      border: none;
      font-family: var(--font-body);
      text-decoration: underline;
      text-underline-offset: 3px;
      transition: color 0.2s;
    }
    .subscribe-dismiss:hover { color: var(--mid); }
    .subscribe-dismiss {
      min-height: 44px;
      display: inline-flex;
      align-items: center;
    }

    /* =====================
       SECTION 2: QUOTE
    ===================== */
    #quote-section {
      background: var(--pure-white);
      padding: var(--section-pad) clamp(28px, 8vw, 180px);
      min-height: 70vh;
      display: flex;
      align-items: center;
      border-top: 1px solid rgba(11, 28, 61, 0.06);
    }
    .quote-inner { max-width: 860px; }
    .quote-mark {
      font-family: var(--font-display);
      font-size: 100px;
      line-height: 0.5;
      color: var(--gold);
      display: block;
      margin-bottom: 28px;
      opacity: 0.6;
    }
    .quote-text {
      font-family: var(--font-display);
      font-weight: 300;
      font-size: clamp(26px, 3.8vw, 50px);
      line-height: 1.35;
      color: var(--dark);
      letter-spacing: 0.01em;
    }
    .quote-text em {
      font-style: italic;
      color: var(--gold);
    }
    .quote-divider {
      width: 56px;
      height: 1px;
      background: var(--gold);
      margin: 44px 0;
      opacity: 0.5;
    }
    .quote-attribution {
      font-size: 11px;
      letter-spacing: 0.38em;
      text-transform: uppercase;
      color: var(--light-mid);
    }

    /* =====================
       SECTION 3: BUBBLE MAP
    ===================== */
    #bubble-section {
      background: var(--dark);
      background: linear-gradient(160deg, #0B1C3D 0%, #0D2451 60%, #0A1830 100%);
      padding: var(--section-pad) clamp(24px, 6vw, 120px) calc(var(--section-pad) * 0.6);
      position: relative;
      overflow: hidden;
    }
    /* Subtle grain on dark section */
    #bubble-section::before {
      content: '';
      position: absolute;
      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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
      opacity: 0.4;
      pointer-events: none;
    }

    .section-label {
      font-size: 10px;
      letter-spacing: 0.4em;
      text-transform: uppercase;
      color: var(--gold);
      margin-bottom: 18px;
    }
    .section-title {
      font-family: var(--font-display);
      font-weight: 300;
      font-size: clamp(30px, 3.8vw, 52px);
      line-height: 1.2;
      margin-bottom: 70px;
      max-width: 580px;
    }
    .section-title.light { color: var(--cream); }
    .section-title.dark  { color: var(--dark); }

    #bubble-map {
      width: 100%;
      max-width: 1080px;
      margin: 0 auto;
      position: relative;
    }
    @keyframes nmPulse { 0%,100% { opacity: 0.4; } 50% { opacity: 1; } }
    #nm-container {
      position: relative;
      width: 100%;
      height: 680px;
      overflow: hidden;
      border-radius: 3px;
      border: 1px solid rgba(196, 151, 58, 0.18);
      box-shadow:
        0 0 0 1px rgba(9, 18, 48, 0.5),
        0 12px 72px rgba(7, 14, 38, 0.65),
        0 -12px 72px rgba(7, 14, 38, 0.65);
    }
    #nm-fx {
      position: absolute; inset: 0;
      width: 100%; height: 100%;
      pointer-events: none; z-index: 0;
    }
    #nm-svg {
      position: absolute; inset: 0;
      width: 100%; height: 100%;
      cursor: grab; z-index: 1;
      background: transparent;
      touch-action: none;
      user-select: none;
    }
    #nm-svg:active { cursor: grabbing; }
    #nm-tooltip {
      position: absolute; z-index: 10;
      background: rgba(11,28,61,0.93);
      border: 1px solid #C4973A; border-radius: 8px;
      padding: 10px 16px; color: #fff;
      font-family: var(--font-body); font-size: 12px;
      pointer-events: none; opacity: 0;
      transition: opacity 0.2s; max-width: 210px;
      backdrop-filter: blur(8px);
    }
    .nm-tip-title { font-family: var(--font-display); font-size: 17px; color: #E8C97D; margin-bottom: 3px; }
    .nm-tip-type  { font-size: 9px; letter-spacing: 0.16em; color: rgba(255,255,255,0.38); text-transform: uppercase; }
    #nm-legend {
      position: absolute; top: 18px; right: 18px; z-index: 5;
      display: flex; flex-direction: column; gap: 7px;
    }
    .nm-leg-item { display: flex; align-items: center; gap: 7px; font-size: 9px; letter-spacing: 0.12em; color: rgba(255,255,255,0.36); font-family: var(--font-body); }
    #nm-hint {
      position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%);
      font-size: 9px; letter-spacing: 0.18em; color: rgba(255,255,255,0.2);
      font-family: var(--font-body); pointer-events: none; z-index: 5; white-space: nowrap;
    }
    .network-expand-btn {
      display: block;
      text-align: center;
      margin-top: 28px;
      font-family: var(--font-body);
      font-size: 10px;
      letter-spacing: 0.35em;
      text-transform: uppercase;
      color: rgba(196, 151, 58, 0.45);
      text-decoration: none;
      transition: color 0.3s ease;
    }
    .network-expand-btn:hover { color: var(--gold); }

    /* =====================
       SECTION 4: DETAILS
    ===================== */
    #details-section {
      background: var(--pure-white);
      padding: var(--section-pad) clamp(28px, 8vw, 180px);
    }
    .details-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 1px;
      background: rgba(11, 28, 61, 0.1);
      border: 1px solid rgba(11, 28, 61, 0.1);
      margin-top: 56px;
    }
    .detail-card {
      background: var(--pure-white);
      padding: 44px 38px;
      transition: background 0.3s;
    }
    .detail-card:hover { background: var(--warm-white); }
    .detail-number {
      font-family: var(--font-display);
      font-size: 11px;
      letter-spacing: 0.32em;
      color: var(--gold);
      margin-bottom: 18px;
      display: block;
    }
    .detail-title {
      font-family: var(--font-display);
      font-weight: 400;
      font-size: clamp(20px, 2.4vw, 28px);
      color: var(--dark);
      margin-bottom: 14px;
      line-height: 1.2;
    }
    .detail-body {
      font-size: 13px;
      font-weight: 300;
      line-height: 1.75;
      color: var(--mid);
    }

    /* =====================
       SECTION 5: CONTACT
    ===================== */
    #contact-section {
      background: linear-gradient(160deg, #0B1C3D 0%, #0D2451 100%);
      padding: var(--section-pad) clamp(28px, 8vw, 180px);
      position: relative;
      overflow: hidden;
    }
    #contact-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at 65% 40%, rgba(41, 82, 179, 0.25) 0%, transparent 60%),
                  radial-gradient(ellipse at 20% 80%, rgba(196, 151, 58, 0.08) 0%, transparent 50%);
      pointer-events: none;
    }
    .contact-inner { max-width: 720px; position: relative; }
    .contact-title {
      font-family: var(--font-display);
      font-weight: 300;
      font-size: clamp(34px, 5vw, 62px);
      color: var(--cream);
      line-height: 1.15;
      margin-bottom: 22px;
    }
    .contact-sub {
      font-size: 14px;
      font-weight: 300;
      line-height: 1.75;
      color: rgba(249, 247, 242, 0.5);
      margin-bottom: 52px;
      max-width: 500px;
    }
    .contact-links {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 70px;
    }
    .contact-link {
      font-size: 11px;
      letter-spacing: 0.26em;
      text-transform: uppercase;
      color: var(--cream);
      text-decoration: none;
      padding: 15px 30px;
      border: 1px solid rgba(249, 247, 242, 0.18);
      transition: all 0.25s;
      cursor: pointer;
      font-family: var(--font-body);
      background: none;
    }
    .contact-link:hover {
      background: var(--blue-mid);
      border-color: var(--blue-mid);
      color: var(--pure-white);
    }
    .contact-link.primary {
      background: var(--gold);
      border-color: var(--gold);
      color: var(--dark);
    }
    .contact-link.primary:hover {
      background: var(--gold-light);
      border-color: var(--gold-light);
    }
    .footer-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 36px;
      border-top: 1px solid rgba(249, 247, 242, 0.08);
      flex-wrap: wrap;
      gap: 18px;
    }
    .footer-wordmark {
      font-family: var(--font-display);
      font-weight: 300;
      font-size: 17px;
      letter-spacing: 0.42em;
      color: rgba(249, 247, 242, 0.25);
    }
    .footer-note {
      font-size: 10px;
      letter-spacing: 0.22em;
      color: rgba(249, 247, 242, 0.18);
      text-transform: uppercase;
    }

    /* =====================
       SCROLL REVEAL
    ===================== */
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.85s ease, transform 0.85s ease;
      will-change: opacity, transform;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.12s; }
    .reveal-delay-2 { transition-delay: 0.24s; }
    .reveal-delay-3 { transition-delay: 0.36s; }
    .reveal-delay-4 { transition-delay: 0.48s; }

    /* =====================
       RESPONSIVE
    ===================== */
    @media (max-width: 768px) {
      /* NAV: Hide desktop links, show hamburger */
      .nav-links { display: none; }
      .nav-hamburger { display: flex; }
      #mobile-menu { display: block; }
      nav {
        padding: 18px clamp(16px, 4vw, 28px);
      }
      nav.scrolled {
        padding: 14px clamp(16px, 4vw, 28px);
      }
      .nav-logo {
        font-size: 16px;
        letter-spacing: 0.3em;
      }

      /* HERO: Wordmark size on mobile */
      .intro-wordmark {
        font-size: clamp(32px, 5vw, 56px);
        letter-spacing: 0.3em;
      }

      /* SCROLL HINT: Reduce size on mobile */
      .scroll-hint {
        bottom: 32px;
      }
      .scroll-hint span {
        font-size: 8px;
        letter-spacing: 0.3em;
      }
      .scroll-line {
        height: 24px;
      }

      /* BUBBLE MAP: Slightly shorter on mobile, fully interactive */
      #nm-container {
        height: 70vh;
        position: relative;
      }

      /* Map is fully interactive — D3 handles touch-drag and pinch-to-zoom natively */
      #nm-svg {
        cursor: grab;
        touch-action: none;
      }
      #nm-svg:active {
        cursor: grabbing;
      }

      /* Show mobile-appropriate hint */
      #nm-hint {
        display: block;
        font-size: 8px;
        letter-spacing: 0.14em;
        bottom: 12px;
      }

      /* Reduce legend on mobile */
      #nm-legend {
        top: 12px;
        right: 12px;
        gap: 5px;
      }
      .nm-leg-item {
        font-size: 8px;
        letter-spacing: 0.1em;
        gap: 5px;
      }
      .nm-leg-item .nm-leg-dot {
        width: 6px !important;
        height: 6px !important;
      }

      /* DETAILS GRID: Stack on mobile */
      .details-grid {
        grid-template-columns: 1fr;
      }
      .detail-card {
        padding: 32px 24px;
      }

      /* SUBSCRIBE FORM: Stack on mobile */
      .subscribe-form {
        flex-direction: column;
        max-width: 100%;
      }
      .subscribe-form input {
        border-bottom: 1px solid rgba(196, 151, 58, 0.35);
        padding: 12px 16px;
      }
      .subscribe-form button {
        padding: 12px 16px;
        border-top: 1px solid rgba(196, 151, 58, 0.35);
      }

      /* SUBSCRIBE OVERLAY: Reduce padding */
      .subscribe-content {
        padding: 48px 28px;
        max-width: 100%;
        margin: 0 12px;
      }
      .subscribe-headline {
        font-size: clamp(28px, 4vw, 48px);
        margin-bottom: 8px;
      }
      .subscribe-sub {
        font-size: 12px;
        margin-bottom: 32px;
      }

      /* CONTACT SECTION: Reduce padding and stack */
      .contact-subscribe-form {
        max-width: 100%;
      }
      .contact-title {
        font-size: clamp(28px, 4vw, 48px);
      }
      .contact-sub {
        font-size: 13px;
        margin-bottom: 36px;
      }

      /* FOOTER: Stack on small screens */
      .footer-line {
        flex-direction: column;
        gap: 12px;
      }

      /* TOOLTIP: Reduce size on mobile */
      #nm-tooltip {
        max-width: 180px;
        font-size: 11px;
      }
    }

    @media (max-width: 640px) {
      /* INTRO: Further optimization for very small screens */
      #light-intro {
        height: 100vh;
        height: 100dvh;
      }
      .intro-wordmark {
        font-size: clamp(28px, 9vw, 48px);
        letter-spacing: 0.25em;
      }

      /* SECTION PADDING: Tighter on very small screens */
      #quote-section {
        padding: 60px clamp(16px, 5vw, 28px);
        min-height: auto;
      }
      .quote-mark {
        font-size: 60px;
        margin-bottom: 16px;
      }
      .quote-text {
        font-size: clamp(18px, 3.5vw, 32px);
      }

      #bubble-section {
        padding: 60px clamp(16px, 5vw, 28px) 40px;
      }
      .section-title {
        font-size: clamp(24px, 3.5vw, 40px);
        margin-bottom: 40px;
      }
      .section-label {
        font-size: 9px;
        margin-bottom: 14px;
      }

      #details-section {
        padding: 60px clamp(16px, 5vw, 28px);
      }

      #contact-section {
        padding: 60px clamp(16px, 5vw, 28px);
      }
      .contact-inner {
        max-width: 100%;
      }

      /* DETAIL CARD: Tighter spacing */
      .detail-card {
        padding: 24px 16px;
      }
      .detail-number {
        font-size: 10px;
        margin-bottom: 12px;
      }
      .detail-title {
        font-size: clamp(18px, 2.2vw, 24px);
        margin-bottom: 10px;
      }
      .detail-body {
        font-size: 12px;
        line-height: 1.6;
      }

      /* Network map: reduce overlay padding */
      .network-expand-btn {
        font-size: 9px;
        margin-top: 20px;
      }
    }