:root {
      --void: #020408;
      --deep: #050A14;
      --abyss: #08101E;
      --surface: #0D1A2E;
      --elevated: #112238;

      --cyan: #00E5FF;
      --cyan-dim: rgba(0, 229, 255, 0.15);
      --cyan-glow: rgba(0, 229, 255, 0.4);
      --violet: #7B2FFF;
      --violet-dim: rgba(123, 47, 255, 0.15);
      --magenta: #FF2D6B;
      --gold: #FFB020;
      --green: #00FF88;

      --text-primary: #E8F4FF;
      --text-secondary: rgba(220, 235, 255, 0.84);
      --text-muted: rgba(180, 200, 230, 0.64);

      --border: rgba(0, 229, 255, 0.15);
      --border-bright: rgba(0, 229, 255, 0.38);

      --font-display: 'Syne', sans-serif;
      --font-body: 'Space Grotesk', sans-serif;
      --font-mono: 'JetBrains Mono', monospace;
      --section-space: clamp(4rem, 8vw, 6.8rem);
      --container-wide: 1280px;
      --container-copy: 780px;
      --card-padding: clamp(1.45rem, 2.5vw, 2.15rem);
    }

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

    html {
      width: 100%;
      max-width: 100%;
      scroll-padding-top: 80px;
      scroll-behavior: smooth;
      overflow-x: hidden;
    }

    body {
      width: 100%;
      max-width: 100%;
      font-family: var(--font-body);
      background: var(--void);
      color: var(--text-primary);
      overflow-x: hidden;
      line-height: 1.65;
      opacity: 0;
      transition: opacity 0.6s ease;
    }

    img, svg, canvas, video, iframe {
      max-width: 100%;
      height: auto;
    }

    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background-image:
        linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
      background-size: 60px 60px;
      z-index: 0;
      pointer-events: none;
    }

    body::after {
      content: '';
      position: fixed;
      inset: 0;
      background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.08) 2px,
        rgba(0, 0, 0, 0.08) 4px
      );
      z-index: 0;
      pointer-events: none;
    }

    #starfield {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
    }

    .star {
      position: absolute;
      background: white;
      border-radius: 50%;
      animation: starPulse var(--dur, 4s) infinite ease-in-out var(--delay, 0s);
    }

    @keyframes starPulse {
      0%, 100% { opacity: 0.15; transform: scale(1); }
      50% { opacity: 0.9; transform: scale(1.5); }
    }

    .nebula {
      position: fixed;
      border-radius: 50%;
      filter: blur(120px);
      z-index: 0;
      pointer-events: none;
      animation: nebulaDrift 25s infinite ease-in-out alternate;
    }

    .nebula-1 { width: 600px; height: 600px; top: -200px; left: -150px; background: radial-gradient(circle, rgba(123,47,255,0.18), transparent 70%); }
    .nebula-2 { width: 500px; height: 500px; top: 30%; right: -100px; background: radial-gradient(circle, rgba(0,229,255,0.12), transparent 70%); animation-delay: -8s; }
    .nebula-3 { width: 400px; height: 400px; bottom: 10%; left: 30%; background: radial-gradient(circle, rgba(255,45,107,0.1), transparent 70%); animation-delay: -16s; }

    @keyframes nebulaDrift {
      from { transform: translate(0, 0) scale(1); }
      to { transform: translate(40px, 30px) scale(1.1); }
    }

    .navbar {
      position: fixed;
      top: 0;
      width: 100%;
      z-index: 1000;
      padding: 0.85rem 0;
      background: rgba(2, 4, 8, 0.7);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border-bottom: 1px solid var(--border);
      transition: all 0.4s ease;
    }

    .navbar.scrolled {
      background: rgba(2, 4, 8, 0.92);
      border-bottom-color: var(--border-bright);
      box-shadow: 0 0 40px rgba(0, 229, 255, 0.08);
    }

    .navbar::before,
    .navbar::after {
      content: '';
      position: absolute;
      bottom: -1px;
      width: 80px;
      height: 3px;
    }

    .navbar::before {
      left: 0;
      background: linear-gradient(90deg, var(--cyan), transparent);
    }

    .navbar::after {
      right: 0;
      background: linear-gradient(270deg, var(--violet), transparent);
    }

    .nav-container {
      max-width: var(--container-wide);
      margin: 0 auto;
      padding: 0 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1.5rem;
      min-height: 54px;
    }

    .navbar-brand {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: clamp(1rem, 2vw, 1.15rem);
      text-decoration: none;
      color: var(--text-primary);
      letter-spacing: -0.02em;
      display: flex;
      align-items: center;
      gap: 0.6rem;
      transition: all 0.3s ease;
      line-height: 1.1;
    }

    .brand-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 12px var(--cyan);
      animation: brandPulse 2s infinite ease-in-out;
    }

    @keyframes brandPulse {
      0%, 100% { box-shadow: 0 0 8px var(--cyan); transform: scale(1); }
      50% { box-shadow: 0 0 20px var(--cyan), 0 0 40px rgba(0,229,255,0.3); transform: scale(1.3); }
    }

    .navbar-brand:hover { color: var(--cyan); text-shadow: 0 0 20px var(--cyan-glow); }

    .nav-menu {
      display: flex;
      list-style: none;
      gap: 1.4rem;
      align-items: center;
    }

    .nav-link {
      font-family: var(--font-mono);
      font-size: 0.75rem;
      font-weight: 500;
      color: var(--text-secondary);
      text-decoration: none;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      transition: all 0.3s ease;
      position: relative;
      line-height: 1;
    }

    .nav-link::before {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 1px;
      background: var(--cyan);
      box-shadow: 0 0 8px var(--cyan);
      transition: width 0.3s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--cyan);
      text-shadow: 0 0 12px var(--cyan-glow);
    }

    .nav-link:hover::before,
    .nav-link.active::before {
      width: 100%;
    }

    .login-btn {
      font-family: var(--font-mono);
      font-size: 0.75rem;
      padding: 0.62rem 1.15rem;
      border: 1px solid var(--border-bright);
      border-radius: 4px;
      color: var(--cyan) !important;
      position: relative;
      overflow: hidden;
      transition: all 0.3s ease;
      clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      line-height: 1;
    }

    .login-btn::before { display: none; }

    .login-btn:hover {
      background: var(--cyan-dim);
      border-color: var(--cyan);
      box-shadow: 0 0 20px var(--cyan-glow), inset 0 0 20px rgba(0,229,255,0.05);
      color: var(--cyan) !important;
    }

    .social-icons { display: flex; gap: 0.6rem; margin-left: 0.4rem; align-items: center; }
    .social-icons a { color: var(--text-muted); font-size: 1rem; transition: all 0.3s ease; display: inline-flex; align-items: center; justify-content: center; width: 1.75rem; height: 1.75rem; }
    .social-icons a:hover { color: var(--cyan); text-shadow: 0 0 10px var(--cyan-glow); transform: translateY(-2px); }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border);
      color: var(--text-primary);
      font-size: 1.2rem;
      cursor: pointer;
      padding: 0.5rem 0.7rem;
      border-radius: 4px;
      transition: all 0.3s ease;
    }

    .mobile-menu-toggle:hover { border-color: var(--cyan); color: var(--cyan); }

    .custom-alert {
      position: fixed;
      top: 73px;
      left: 0;
      width: 100%;
      background: rgba(255, 176, 32, 0.08);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255, 176, 32, 0.22);
      padding: 0.6rem 4.25rem 0.6rem 1.35rem;
      z-index: 1400;
      display: none;
      animation: slideDown 0.5s ease-out;
      text-align: center;
    }

    .custom-alert-content {
      width: 100%;
      max-width: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 1.35rem;
    }

    .custom-alert-content p {
      color: var(--text-primary);
      margin: 0;
      font-family: var(--font-mono);
      font-size: 0.75rem;
      line-height: 1.4;
      letter-spacing: 0.025em;
      text-wrap: balance;
    }

    .custom-alert-content p strong { color: var(--gold); }
    .custom-alert-content p a { color: var(--cyan); text-decoration: none; border-bottom: 1px solid var(--border-bright); }
    .custom-alert-content p a:hover { color: var(--text-primary); }

    .close-alert-btn {
      position: absolute;
      top: 50%;
      right: 1.5rem;
      transform: translateY(-50%);
      background: none;
      border: none;
      color: var(--text-secondary);
      font-size: 1.5rem;
      cursor: pointer;
      transition: color 0.2s;
      line-height: 1;
    }

    .close-alert-btn:hover { color: var(--gold); }

    main,
    section,
    .hero-grid,
    .story-grid,
    .principles-grid,
    .audience-grid,
    .frontier-layout,
    .footer-container {
      width: 100%;
      max-width: 100%;
    }

    section {
      position: relative;
      z-index: 1;
      padding: var(--section-space) clamp(1rem, 4vw, 2rem);
    }

    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      padding-top: 8.6rem;
      overflow: hidden;
      background: radial-gradient(ellipse at top, rgba(0, 229, 255, 0.08) 0%, transparent 60%);
    }

    .hero-grid {
      max-width: var(--container-wide);
      margin: 0 auto;
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
      gap: clamp(1.5rem, 4vw, 3rem);
      align-items: center;
    }

    .hero-copy,
    .hero-panel,
    .story-card,
    .principle-card,
    .difference-panel,
    .frontier-card,
    .audience-card,
    .closing-card {
      min-width: 0;
    }

    .status-badge,
    .section-tag,
    .panel-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      font-family: var(--font-mono);
      font-size: 0.72rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--cyan);
      border: 1px solid var(--border-bright);
      padding: 0.5rem 1rem;
      border-radius: 2px;
      background: rgba(0, 229, 255, 0.05);
    }

    .status-badge { margin-bottom: 1.5rem; }

    .status-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 8px var(--green);
      animation: statusBlink 1.5s infinite;
    }

    @keyframes statusBlink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.3; }
    }

    .hero h1 {
      font-family: var(--font-body);
      font-size: clamp(2.5rem, 6vw, 4.7rem);
      line-height: 0.98;
      letter-spacing: -0.04em;
      margin-bottom: 1rem;
      text-wrap: balance;
    }

    .about-page .hero h1,
    .about-page .section-title,
    .about-page .closing-card h2 {
      display: inline-block;
      max-width: 100%;
      background: linear-gradient(90deg, #f2f7ff 0%, #dcefff 45%, #37e6ff 100%);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      color: transparent;
      text-shadow: 0 0 22px rgba(0, 229, 255, 0.10);
    }

    .about-page .section-title,
    .about-page .closing-card h2 {
      margin-inline: auto;
    }

    @supports not ((-webkit-background-clip: text) or (background-clip: text)) {
      .about-page .hero h1,
      .about-page .section-title,
      .about-page .closing-card h2 {
        color: #eaf7ff;
        background: none;
      }
    }

    .hero-kicker {
      font-family: var(--font-display);
      font-size: clamp(1.1rem, 2vw, 1.45rem);
      color: var(--cyan);
      margin-bottom: 1rem;
      line-height: 1.35;
    }

    .hero-subtitle {
      max-width: 62ch;
      color: var(--text-secondary);
      font-size: clamp(1rem, 1.5vw, 1.15rem);
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-top: 2rem;
    }

    .cta-button,
    .cta-button-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.6rem;
      min-height: 52px;
      text-align: center;
      line-height: 1.2;
      white-space: normal;
      text-decoration: none;
      border-radius: 4px;
      transition: all 0.3s ease;
    }

    .cta-button {
      background: linear-gradient(135deg, var(--cyan) 0%, var(--violet) 100%);
      color: var(--void);
      padding: 0.98rem 2rem;
      font-weight: 700;
      clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
    }

    .cta-button:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 40px rgba(0, 229, 255, 0.4);
      color: var(--void);
    }

    .cta-button-secondary {
      background: transparent;
      border: 1px solid var(--border-bright);
      color: var(--text-primary);
      padding: 0.98rem 2rem;
      font-weight: 600;
      clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
    }

    .cta-button-secondary:hover {
      background: var(--cyan-dim);
      border-color: var(--cyan);
      color: var(--cyan);
      transform: translateY(-3px);
    }

    .hero-panel,
    .story-card,
    .principle-card,
    .frontier-card,
    .audience-card,
    .closing-card,
    .difference-panel {
      background: rgba(13, 26, 46, 0.6);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: var(--card-padding);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      position: relative;
      overflow: hidden;
    }

    .hero-panel::before,
    .story-card::before,
    .principle-card::before,
    .frontier-card::before,
    .audience-card::before,
    .closing-card::before,
    .difference-panel::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
      opacity: 0.85;
    }

    .hero-panel {
      background:
        linear-gradient(180deg, rgba(123, 47, 255, 0.09), rgba(13, 26, 46, 0.72)),
        rgba(13, 26, 46, 0.66);
      clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
    }

    .hero-panel-header {
      display: flex;
      justify-content: space-between;
      gap: 1rem;
      align-items: center;
      margin-bottom: 1rem;
    }

    .panel-index {
      font-family: var(--font-mono);
      color: var(--text-muted);
      font-size: 0.75rem;
      letter-spacing: 0.08em;
    }

    .hero-panel p,
    .story-card p,
    .principle-card p,
    .frontier-card p,
    .audience-card p,
    .closing-card p,
    .difference-panel p,
    .section-subtitle {
      color: var(--text-secondary);
      font-size: 1rem;
      line-height: 1.78;
    }

    .hero-metrics {
      display: grid;
      gap: 0.9rem;
      margin-top: 1.4rem;
    }

    .metric {
      padding: 0.95rem 1rem;
      border: 1px solid rgba(0, 229, 255, 0.12);
      border-radius: 6px;
      background: rgba(2, 4, 8, 0.42);
    }

    .metric strong,
    .story-card h3,
    .principle-card h3,
    .audience-card h3 {
      display: block;
      color: var(--text-primary);
      font-size: 1.05rem;
      line-height: 1.3;
      margin-bottom: 0.35rem;
      font-weight: 700;
    }

    .metric span {
      color: var(--text-secondary);
      font-size: 0.94rem;
      line-height: 1.6;
    }

    .section-header {
      max-width: 980px;
      margin: 0 auto clamp(2rem, 4vw, 3.25rem);
      text-align: center;
    }

    .section-tag {
      margin-bottom: 1rem;
      border-color: var(--border);
    }

    .section-title {
      font-family: var(--font-body);
      font-size: clamp(2rem, 4.5vw, 3.4rem);
      line-height: 1.05;
      letter-spacing: -0.035em;
      margin: 0 auto 0.95rem;
      text-wrap: balance;
    }

    .section-subtitle {
      max-width: 64ch;
      margin: 0 auto;
    }

    .story-section,
    .frontier-section,
    .closing-section {
      background: rgba(5, 10, 20, 0.58);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid rgba(0, 229, 255, 0.08);
    }

    .story-grid,
    .principles-grid,
    .audience-grid,
    .frontier-layout {
      max-width: var(--container-wide);
      margin: 0 auto;
      display: grid;
      gap: 1.4rem;
    }

    .story-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .story-card,
    .frontier-card {
      display: grid;
      gap: 1rem;
    }

    .difference-section {
      background: linear-gradient(180deg, rgba(8, 16, 30, 0.72), rgba(2, 4, 8, 0.45));
    }

    .principles-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
      margin-bottom: 1.4rem;
    }

    .principle-icon,
    .audience-icon {
      font-size: 1.45rem;
      color: var(--cyan);
      margin-bottom: 0.9rem;
      filter: drop-shadow(0 0 10px rgba(0,229,255,0.24));
    }

    .principle-formula {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 2.5rem;
      margin-bottom: 0.9rem;
      padding: 0.35rem 0.75rem;
      border: 1px solid rgba(0, 229, 255, 0.18);
      border-radius: 999px;
      background: rgba(0, 229, 255, 0.06);
      color: var(--cyan);
      font-family: var(--font-mono);
      font-size: clamp(0.88rem, 1.4vw, 1rem);
      font-weight: 600;
      letter-spacing: 0.02em;
      line-height: 1.2;
      max-width: 100%;
      white-space: nowrap;
      overflow-wrap: anywhere;
      box-shadow: inset 0 0 0 1px rgba(123, 47, 255, 0.06);
    }

    .difference-panel {
      max-width: 920px;
      margin: 0 auto;
      background: rgba(123, 47, 255, 0.06);
      border-color: rgba(123, 47, 255, 0.28);
      text-align: center;
    }

    .frontier-layout {
      grid-template-columns: minmax(0, 1fr) minmax(280px, 0.9fr);
      align-items: start;
    }

    .frontier-topics {
      display: grid;
      gap: 0.9rem;
      align-content: start;
    }

    .topic-pill {
      display: flex;
      align-items: center;
      min-height: 58px;
      padding: 0.9rem 1rem;
      border-radius: 999px;
      border: 1px solid rgba(0, 229, 255, 0.18);
      background: rgba(13, 26, 46, 0.55);
      color: var(--text-primary);
      font-family: var(--font-mono);
      font-size: 0.82rem;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      box-shadow: inset 0 0 0 1px rgba(123, 47, 255, 0.06);
    }

    .audience-grid {
      grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .audience-card {
      clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
    }

    .closing-card {
      max-width: 920px;
      margin: 0 auto;
      text-align: center;
      padding: clamp(2rem, 4vw, 3.25rem);
      background:
        radial-gradient(circle at top, rgba(0,229,255,0.08), transparent 45%),
        rgba(13, 26, 46, 0.7);
    }

    .closing-card h2 {
      font-family: var(--font-body);
      font-size: clamp(2rem, 4vw, 3.15rem);
      line-height: 1.05;
      letter-spacing: -0.035em;
      margin: 0 auto 1rem;
      text-wrap: balance;
    }

    .closing-card p {
      max-width: 58ch;
      margin: 0 auto;
    }

    .closing-card .hero-actions {
      justify-content: center;
    }

    .footer {
      background: var(--void);
      border-top: 1px solid var(--border);
      padding: 5rem 2rem 2rem;
      position: relative;
      z-index: 1;
    }

    .footer-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 3rem;
      max-width: 1280px;
      margin: 0 auto 4rem;
    }

    .footer-column h4 {
      font-family: var(--font-display);
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 1.5rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .footer-column h4::before { content: '//'; font-family: var(--font-mono); color: var(--cyan); font-size: 0.8rem; }
    .footer-column p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; }
    .footer-column ul { list-style: none; }
    .footer-column ul li { margin-bottom: 0.7rem; }
    .footer-column ul a { color: var(--text-secondary); text-decoration: none; font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.03em; transition: all 0.2s ease; }
    .footer-column ul a:hover { color: var(--cyan); }

    .footer-social { display: flex; gap: 1rem; margin-top: 1.5rem; }
    .footer-social a { color: var(--text-muted); font-size: 1.2rem; transition: all 0.3s ease; }
    .footer-social a:hover { color: var(--cyan); text-shadow: 0 0 10px var(--cyan-glow); transform: translateY(-2px); }

    .footer-bottom {
      text-align: center;
      padding-top: 2rem;
      border-top: 1px solid var(--border);
      font-family: var(--font-mono);
      font-size: 0.75rem;
      color: var(--text-muted);
      max-width: 1280px;
      margin: 0 auto;
      letter-spacing: 0.05em;
    }

    @keyframes fadeSlideUp {
      from { opacity: 0; transform: translateY(30px); }
      to { opacity: 1; transform: translateY(0); }
    }

    @keyframes slideDown {
      from { transform: translateY(-100%); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }

    @keyframes slideUp {
      from { transform: translateY(0); opacity: 1; }
      to { transform: translateY(-100%); opacity: 0; }
    }

    .reveal {
      opacity: 0;
      transform: translateY(40px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal.visible { opacity: 1; transform: translateY(0); }

    @media (max-width: 1024px) {
      .hero-grid,
      .frontier-layout,
      .story-grid {
        grid-template-columns: 1fr;
      }

      .principles-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .audience-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        position: fixed;
        top: 67px;
        left: 0;
        width: 100%;
        background: rgba(2, 4, 8, 0.97);
        flex-direction: column;
        padding: 1.35rem 1.5rem 1.8rem;
        gap: 1.1rem;
        transform: translateY(-120%);
        transition: transform 0.4s ease;
        border-bottom: 1px solid var(--border);
        align-items: stretch;
      }

      .nav-menu.active { transform: translateY(0); }
      .mobile-menu-toggle { display: block; }
      .nav-link,
      .login-btn { justify-content: flex-start; }
      .social-icons { margin-left: 0; justify-content: flex-start; }
      .nav-container { padding: 0 1rem; min-height: 50px; }
      .navbar { padding: 0.75rem 0; }
      .custom-alert { top: 67px; padding: 0.58rem 2.3rem 0.58rem 0.85rem; }
      .close-alert-btn { right: 0.5rem; }
      .hero { padding-top: 7rem; min-height: auto; }
      .hero-actions { flex-direction: column; }
      .hero-actions .cta-button,
      .hero-actions .cta-button-secondary { width: 100%; }
      .principles-grid,
      .audience-grid,
      .footer-container { grid-template-columns: 1fr; }
      .footer-social { justify-content: flex-start; }
    }

    @media (max-width: 640px) {
      section { padding-inline: clamp(1rem, 4.5vw, 1.35rem); }

      .nav-container {
        gap: 0.75rem;
        padding-inline: clamp(0.9rem, 4vw, 1.15rem);
      }

      .navbar-brand {
        max-width: calc(100% - 3.75rem);
        font-size: 0.9rem;
        line-height: 1.18;
      }

      .hero {
        padding-top: 6.8rem;
        padding-bottom: 3.5rem;
      }

      .status-badge,
      .section-tag,
      .panel-tag {
        max-width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        padding: 0.5rem 0.9rem;
        font-size: 0.64rem;
        line-height: 1.45;
        letter-spacing: 0.06em;
      }

      .hero h1 {
        font-size: clamp(2.05rem, 10vw, 3.2rem);
      }

      .hero-kicker {
        font-size: clamp(1rem, 4.4vw, 1.2rem);
      }

      .hero-subtitle,
      .section-subtitle,
      .hero-panel p,
      .story-card p,
      .principle-card p,
      .frontier-card p,
      .audience-card p,
      .closing-card p,
      .difference-panel p {
        font-size: 0.98rem;
        line-height: 1.76;
      }

      .principle-formula {
        font-size: 0.84rem;
        padding: 0.35rem 0.65rem;
      }

      .hero-panel-header {
        flex-direction: column;
        align-items: flex-start;
      }

      .custom-alert {
        padding: 0.7rem 2.9rem 0.7rem 0.95rem;
        text-align: left;
      }

      .custom-alert-content {
        justify-content: flex-start;
        align-items: flex-start;
      }

      .custom-alert-content p {
        font-size: 0.69rem;
        line-height: 1.5;
        text-wrap: pretty;
      }

      .close-alert-btn {
        right: 0.7rem;
        top: 0.7rem;
        transform: none;
      }

      .topic-pill {
        min-height: auto;
        border-radius: 16px;
        font-size: 0.76rem;
      }

      .footer {
        padding-inline: 1.25rem;
      }
    }

    @media (max-width: 400px) {
      .cta-button,
      .cta-button-secondary {
        width: 100%;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
      .nebula, #starfield { display: none; }
      .reveal,
      .brand-dot,
      .status-dot {
        animation: none !important;
        transform: none !important;
      }
    }