:root {
    --bg: #080c10;
    --surface: #0d1219;
    --surface2: #111820;
    --accent: #4af0a0;
    --accent2: #2dd4bf;
    --accent3: #818cf8;
    --text: #e8edf2;
    --muted: #64748b;
    --border: rgba(255,255,255,0.06);
    --nav-bg: rgba(8,12,16,0.7);
    --step-hover: #141c26;
  }

  [data-theme="light"] {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --surface2: #eef1f6;
    --accent: #059669;
    --accent2: #0d9488;
    --text: #1a1a2e;
    --muted: #6b7280;
    --border: rgba(0,0,0,0.08);
    --nav-bg: rgba(245,247,250,0.85);
    --step-hover: #e8ecf2;
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Onest', sans-serif;
    overflow-x: hidden;
  }

  /* Noise overlay */
  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='0.9' 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");
    pointer-events: none;
    z-index: 1000;
    opacity: 0.5;
  }

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

  /* NAV */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 48px;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
  }
  .logo {
    font-family: 'Unbounded', sans-serif;
    font-weight: 900;
    font-size: 18px;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .nav-links {
    display: flex;
    gap: 36px;
    list-style: none;
  }
  .nav-links a {
    color: var(--muted);
    font-size: 14px;
    font-weight: 400;
    transition: color 0.2s;
    letter-spacing: 0.02em;
  }
  .nav-links a:hover { color: var(--text); }

  .nav-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(74,240,160,0.08);
    border: 1px solid rgba(74,240,160,0.2);
    border-radius: 100px;
    padding: 8px 16px;
    font-size: 12px;
    color: var(--accent);
    font-weight: 500;
    transition: background 0.2s;
  }
  .nav-cta:hover {
    background: rgba(74,240,160,0.14);
  }
  .nav-cta svg { flex-shrink: 0; }

  /* Mobile menu */
  .mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    padding: 8px;
  }

  /* HERO */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 48px 80px;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 80% 60% at 50% 120%, rgba(74,240,160,0.06) 0%, transparent 60%),
      radial-gradient(ellipse 60% 40% at 80% 20%, rgba(129,140,248,0.05) 0%, transparent 50%);
  }

  .grid-lines {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 80%);
  }

  .markers-container {
    position: absolute;
    inset: 0;
    pointer-events: none;
  }
  .marker {
    position: absolute;
    width: 12px; height: 12px;
    animation: markerAppear 4s infinite;
    opacity: 0;
  }
  .marker::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent);
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
    box-shadow: 0 0 10px rgba(74,240,160,0.6);
  }
  .marker::after {
    content: '';
    position: absolute;
    inset: -8px;
    border: 1px solid rgba(74,240,160,0.3);
    border-radius: 50%;
    animation: ripple 4s infinite;
  }
  @keyframes markerAppear {
    0% { opacity: 0; transform: scale(0) translateY(-10px); }
    15% { opacity: 1; transform: scale(1) translateY(0); }
    75% { opacity: 1; }
    100% { opacity: 0; }
  }
  @keyframes ripple {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(3); opacity: 0; }
  }

  .hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
  }

  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(74,240,160,0.06);
    border: 1px solid rgba(74,240,160,0.15);
    border-radius: 100px;
    padding: 8px 20px;
    font-size: 12px;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 40px;
    animation: fadeUp 0.8s ease both;
  }
  .eyebrow-line {
    width: 20px; height: 1px;
    background: var(--accent);
    opacity: 0.5;
  }

  h1 {
    font-family: 'Unbounded', sans-serif;
    font-weight: 900;
    font-size: clamp(44px, 7vw, 92px);
    line-height: 1.0;
    letter-spacing: -2px;
    margin-bottom: 28px;
    animation: fadeUp 0.8s 0.1s ease both;
  }
  h1 em {
    font-style: normal;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 50%, var(--accent3) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
  }

  .hero-desc {
    font-size: 18px;
    color: var(--muted);
    line-height: 1.7;
    max-width: 520px;
    margin: 0 auto 48px;
    font-weight: 400;
    animation: fadeUp 0.8s 0.2s ease both;
  }

  .hero-cta {
    display: flex;
    gap: 16px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeUp 0.8s 0.3s ease both;
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent);
    color: #080c10;
    font-family: 'Unbounded', sans-serif;
    font-size: 13px;
    font-weight: 600;
    padding: 16px 28px;
    border-radius: 100px;
    border: none;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    letter-spacing: 0.02em;
    box-shadow: 0 0 40px rgba(74,240,160,0.2);
  }
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(74,240,160,0.35);
  }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 14px;
    cursor: pointer;
    transition: color 0.2s;
    padding: 16px 20px;
  }
  .btn-ghost:hover { color: var(--text); }
  .btn-ghost svg { transition: transform 0.2s; }
  .btn-ghost:hover svg { transform: translateX(4px); }

  .hero-stats {
    display: flex;
    gap: 48px;
    justify-content: center;
    margin-top: 80px;
    padding-top: 48px;
    border-top: 1px solid var(--border);
    animation: fadeUp 0.8s 0.4s ease both;
  }
  .stat { text-align: center; }
  .stat-num {
    font-family: 'Unbounded', sans-serif;
    font-size: 28px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -1px;
  }
  .stat-label {
    font-size: 12px;
    color: var(--muted);
    margin-top: 4px;
    letter-spacing: 0.05em;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* SECTION COMMON */
  section {
    padding: 120px 48px;
    position: relative;
  }
  .section-label {
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 16px;
  }
  .section-title {
    font-family: 'Unbounded', sans-serif;
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 20px;
  }
  .section-sub {
    color: var(--muted);
    font-size: 16px;
    line-height: 1.7;
    max-width: 480px;
    font-weight: 400;
  }
  .container {
    max-width: 1200px;
    margin: 0 auto;
  }

  /* HOW IT WORKS */
  .how {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .how-header {
    text-align: center;
    margin-bottom: 80px;
  }
  .how-header .section-sub { margin: 0 auto; }

  .steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
  }
  .step {
    background: var(--surface2);
    padding: 48px 40px;
    position: relative;
    transition: background 0.3s;
  }
  .step:hover { background: #141c26; }
  .step-num {
    font-family: 'Unbounded', sans-serif;
    font-size: 11px;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 32px;
    opacity: 0.7;
  }
  .step-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    font-size: 24px;
    background: rgba(255,255,255,0.02);
    transition: border-color 0.3s, background 0.3s;
  }
  .step:hover .step-icon {
    border-color: rgba(74,240,160,0.3);
    background: rgba(74,240,160,0.05);
  }
  .step h3 {
    font-family: 'Unbounded', sans-serif;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.5px;
    margin-bottom: 14px;
    line-height: 1.3;
  }
  .step p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
    font-weight: 400;
  }

  /* FEATURES */
  .features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 80px;
  }
  .feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px;
    transition: border-color 0.3s, transform 0.3s;
    position: relative;
    overflow: hidden;
  }
  .feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(74,240,160,0.03) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s;
  }
  .feature-card:hover::before { opacity: 1; }
  .feature-card:hover {
    border-color: rgba(74,240,160,0.2);
    transform: translateY(-4px);
  }
  .feature-card.large { grid-column: span 2; }
  .feat-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: rgba(74,240,160,0.08);
    border: 1px solid rgba(74,240,160,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 24px;
  }
  .feature-card h3 {
    font-family: 'Unbounded', sans-serif;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.3px;
    margin-bottom: 10px;
  }
  .feature-card p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
    font-weight: 400;
  }
  .features-left { max-width: 400px; }
  .feature-card.large .feat-inner {
    display: flex;
    gap: 48px;
    align-items: center;
  }
  .feat-visual {
    flex: 1;
    min-height: 200px;
    border-radius: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
  }
  .mini-map-dot {
    position: absolute;
    width: 8px; height: 8px;
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
  }
  .mini-map-dot.green { background: var(--accent); box-shadow: 0 0 8px rgba(74,240,160,0.8); }
  .mini-map-dot.blue { background: var(--accent3); box-shadow: 0 0 8px rgba(129,140,248,0.8); }
  .mini-map-dot.teal { background: var(--accent2); box-shadow: 0 0 8px rgba(45,212,191,0.8); }
  .map-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(74,240,160,0.3), transparent);
    width: 80%;
  }

  /* SECURITY */
  .security {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .security-header {
    text-align: center;
    margin-bottom: 64px;
  }
  .security-header .section-sub { margin: 0 auto; }
  .security-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .security-item {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    transition: border-color 0.3s;
  }
  .security-item:hover { border-color: rgba(74,240,160,0.2); }
  .security-item .sec-icon {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: rgba(74,240,160,0.06);
    border: 1px solid rgba(74,240,160,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 20px;
  }
  .security-item h3 {
    font-family: 'Unbounded', sans-serif;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.3px;
  }
  .security-item p {
    color: var(--muted);
    font-size: 13px;
    line-height: 1.6;
    font-weight: 400;
  }

  /* DOWNLOAD / CTA */
  .download {
    text-align: center;
    padding: 100px 48px;
  }
  .download-inner {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 32px;
    padding: 80px 48px;
    position: relative;
    overflow: hidden;
    max-width: 760px;
    margin: 0 auto;
  }
  .download-inner::before {
    content: '';
    position: absolute;
    top: -1px; left: 50%; transform: translateX(-50%);
    width: 60%; height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
  }
  .download-glow {
    position: absolute;
    bottom: -60px; left: 50%; transform: translateX(-50%);
    width: 300px; height: 200px;
    background: radial-gradient(ellipse, rgba(74,240,160,0.12) 0%, transparent 70%);
    pointer-events: none;
  }
  .download-label {
    font-family: 'Unbounded', sans-serif;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 24px;
  }
  .download h2 {
    font-family: 'Unbounded', sans-serif;
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1.1;
    margin-bottom: 20px;
  }
  .download p {
    color: var(--muted);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 40px;
    font-weight: 400;
  }
  .download-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
  }
  .btn-download {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px 24px;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    transition: border-color 0.2s, transform 0.2s;
    cursor: pointer;
  }
  .btn-download:hover {
    border-color: rgba(74,240,160,0.3);
    transform: translateY(-2px);
  }
  .btn-download .dl-label {
    font-size: 11px;
    color: var(--muted);
    font-weight: 400;
  }
  .btn-download .dl-store {
    font-family: 'Unbounded', sans-serif;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.3px;
  }
  .btn-download .dl-text {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  /* FOOTER */
  footer {
    border-top: 1px solid var(--border);
    padding: 40px 48px;
  }
  .footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 48px;
    flex-wrap: wrap;
  }
  .footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .footer-brand .logo { font-size: 16px; }
  .footer-brand p {
    color: var(--muted);
    font-size: 13px;
  }
  .footer-tg-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--accent);
    background: rgba(74,240,160,0.08);
    border: 1px solid rgba(74,240,160,0.2);
    border-radius: 100px;
    transition: background 0.2s, transform 0.15s;
    width: fit-content;
  }
  .footer-tg-cta:hover {
    background: rgba(74,240,160,0.14);
    transform: translateY(-1px);
  }
  .footer-tg-cta svg { flex-shrink: 0; }
  .footer-links {
    display: flex;
    gap: 48px;
  }
  .footer-col h4 {
    font-family: 'Unbounded', sans-serif;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.2px;
  }
  .footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .footer-col a {
    color: var(--muted);
    font-size: 13px;
    transition: color 0.2s;
  }
  .footer-col a:hover { color: var(--text); }

  .footer-bottom {
    max-width: 1200px;
    margin: 24px auto 0;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
  }
  .footer-bottom p {
    color: var(--muted);
    font-size: 12px;
  }

  /* MINI-MAP DOT ANIMATIONS */
  .mini-map-dot {
    animation: dotPulse 3s ease-in-out infinite;
  }
  .mini-map-dot:nth-child(2) { animation-delay: 0.8s; }
  .mini-map-dot:nth-child(3) { animation-delay: 1.6s; }
  .mini-map-dot:nth-child(4) { animation-delay: 2.4s; }
  @keyframes dotPulse {
    0%, 100% { opacity: 1; transform: rotate(-45deg) scale(1); }
    50% { opacity: 0.5; transform: rotate(-45deg) scale(1.4); }
  }
  .mini-map-dot::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    animation: dotRipple 3s ease-out infinite;
  }
  .mini-map-dot.green::after { border: 1px solid rgba(74,240,160,0.4); }
  .mini-map-dot.blue::after { border: 1px solid rgba(129,140,248,0.4); }
  .mini-map-dot.teal::after { border: 1px solid rgba(45,212,191,0.4); }
  @keyframes dotRipple {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(3); opacity: 0; }
  }

  /* SCROLL REVEAL */
  .reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Reduced motion */
  @media (prefers-reduced-motion: reduce) {
    .reveal, .reveal-stagger > * {
      opacity: 1;
      transform: none;
      transition: none;
    }
    .marker, .marker::after, .mini-map-dot, .mini-map-dot::after,
    .scroll-indicator svg, .btn-primary {
      animation: none !important;
    }
    * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    .sticky-cta { display: none; }
  }

  /* THEME TOGGLE */
  .theme-toggle {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 50%;
    width: 36px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text);
    transition: color 0.3s, border-color 0.3s, background 0.3s, transform 0.3s;
    flex-shrink: 0;
  }
  .theme-toggle:hover {
    color: var(--accent);
    border-color: rgba(74,240,160,0.3);
    background: rgba(74,240,160,0.08);
    transform: rotate(30deg);
  }
  .theme-toggle .icon-sun { display: none; }
  .theme-toggle .icon-moon { display: block; }
  [data-theme="light"] .theme-toggle {
    background: rgba(0,0,0,0.04);
    border-color: rgba(0,0,0,0.1);
    color: #1a1a2e;
  }
  [data-theme="light"] .theme-toggle:hover {
    background: rgba(5,150,105,0.08);
    border-color: rgba(5,150,105,0.3);
    color: #059669;
  }
  [data-theme="light"] .theme-toggle .icon-sun { display: block; }
  [data-theme="light"] .theme-toggle .icon-moon { display: none; }

  /* LIGHT THEME OVERRIDES */
  [data-theme="light"] .logo {
    background: linear-gradient(135deg, #059669, #0d9488);
    -webkit-background-clip: text;
  }
  [data-theme="light"] .btn-primary {
    color: #ffffff;
    box-shadow: 0 4px 24px rgba(5,150,105,0.25);
  }
  [data-theme="light"] .btn-primary:hover {
    box-shadow: 0 6px 32px rgba(5,150,105,0.35), 0 0 60px rgba(5,150,105,0.12);
  }
  [data-theme="light"] .hero-eyebrow {
    background: rgba(5,150,105,0.06);
    border-color: rgba(5,150,105,0.15);
  }
  [data-theme="light"] .nav-cta {
    background: rgba(5,150,105,0.06);
    border-color: rgba(5,150,105,0.2);
  }
  [data-theme="light"] .nav-cta:hover {
    background: rgba(5,150,105,0.12);
  }
  [data-theme="light"] .feat-icon {
    background: rgba(5,150,105,0.06);
    border-color: rgba(5,150,105,0.15);
  }
  [data-theme="light"] .feature-card:hover {
    border-color: rgba(5,150,105,0.2);
  }
  [data-theme="light"] .feature-card::before {
    background: linear-gradient(135deg, rgba(5,150,105,0.04) 0%, transparent 60%);
  }
  [data-theme="light"] .security-item:hover {
    border-color: rgba(5,150,105,0.2);
  }
  [data-theme="light"] .sec-icon {
    background: rgba(5,150,105,0.06);
    border-color: rgba(5,150,105,0.12);
  }
  [data-theme="light"] .step:hover .step-icon {
    border-color: rgba(5,150,105,0.3);
    background: rgba(5,150,105,0.05);
    box-shadow: 0 0 20px rgba(5,150,105,0.1);
  }
  [data-theme="light"] .footer-tg-cta {
    background: rgba(5,150,105,0.06);
    border-color: rgba(5,150,105,0.2);
  }
  [data-theme="light"] .footer-tg-cta:hover {
    background: rgba(5,150,105,0.12);
  }
  [data-theme="light"] .sticky-cta {
    color: #ffffff;
    box-shadow: 0 4px 24px rgba(5,150,105,0.3), 0 0 60px rgba(5,150,105,0.1);
  }
  [data-theme="light"] .btn-download:hover {
    border-color: rgba(5,150,105,0.3);
  }
  [data-theme="light"] .hero-bg {
    background:
      radial-gradient(ellipse 80% 60% at 50% 120%, rgba(5,150,105,0.06) 0%, transparent 60%),
      radial-gradient(ellipse 60% 40% at 80% 20%, rgba(129,140,248,0.06) 0%, transparent 50%);
  }
  [data-theme="light"] .grid-lines {
    background-image:
      linear-gradient(rgba(0,0,0,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,0,0,0.04) 1px, transparent 1px);
  }
  [data-theme="light"] body::before { opacity: 0.15; }
  [data-theme="light"] .step:hover { background: var(--step-hover); }
  [data-theme="light"] .nav-links.show {
    background: rgba(245,247,250,0.97);
  }
  [data-theme="light"] .nav-links.show a {
    color: var(--text);
  }

  /* STAGGERED REVEAL */
  .reveal-stagger > *:nth-child(1) { transition-delay: 0s; }
  .reveal-stagger > *:nth-child(2) { transition-delay: 0.1s; }
  .reveal-stagger > *:nth-child(3) { transition-delay: 0.2s; }
  .reveal-stagger > *:nth-child(4) { transition-delay: 0.25s; }
  .reveal-stagger > *:nth-child(5) { transition-delay: 0.3s; }
  .reveal-stagger > *:nth-child(6) { transition-delay: 0.35s; }
  .reveal-stagger > * {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .reveal-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
  }

  /* ENHANCED HOVER MICRO-INTERACTIONS */
  .feature-card {
    transition: border-color 0.3s, transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s;
  }
  .feature-card:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,0.25);
  }

  .step {
    transition: background 0.3s, transform 0.3s;
  }
  .step:hover {
    transform: translateY(-4px);
  }
  .step:hover .step-icon {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(74,240,160,0.15);
  }
  .step-icon {
    transition: border-color 0.3s, background 0.3s, transform 0.3s, box-shadow 0.3s;
  }

  .security-item {
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  }
  .security-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  }
  .security-item:hover .sec-icon {
    transform: scale(1.1);
  }
  .sec-icon {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  /* NAV LINK UNDERLINE SLIDE */
  .nav-links a {
    position: relative;
  }
  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
  }
  .nav-links a:hover::after { width: 100%; }

  /* ENHANCED CTA */
  .btn-primary {
    position: relative;
    overflow: hidden;
    font-size: 14px;
    padding: 18px 32px;
    box-shadow: 0 0 40px rgba(74,240,160,0.25), 0 0 80px rgba(74,240,160,0.1);
  }
  .btn-primary::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: linear-gradient(45deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
    transform: translateX(-100%);
    transition: none;
  }
  .btn-primary:hover::after {
    animation: shimmer 0.8s ease forwards;
  }
  @keyframes shimmer {
    to { transform: translateX(100%); }
  }
  .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 60px rgba(74,240,160,0.4), 0 0 100px rgba(74,240,160,0.15);
  }

  /* CTA PULSE */
  @keyframes ctaPulse {
    0%, 100% { box-shadow: 0 0 40px rgba(74,240,160,0.25), 0 0 80px rgba(74,240,160,0.1); }
    50% { box-shadow: 0 0 50px rgba(74,240,160,0.35), 0 0 100px rgba(74,240,160,0.15); }
  }
  .btn-primary { animation: ctaPulse 3s ease-in-out infinite; }
  .btn-primary:hover { animation: none; }
  [data-theme="light"] .btn-primary { animation: ctaPulseLight 3s ease-in-out infinite; }
  [data-theme="light"] .btn-primary:hover { animation: none; }
  @keyframes ctaPulseLight {
    0%, 100% { box-shadow: 0 4px 24px rgba(5,150,105,0.25); }
    50% { box-shadow: 0 6px 32px rgba(5,150,105,0.35); }
  }

  /* CTA RIPPLE */
  .btn-primary .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: scale(0);
    animation: btnRipple 0.6s ease-out forwards;
    pointer-events: none;
  }
  @keyframes btnRipple {
    to { transform: scale(4); opacity: 0; }
  }

  /* FEATURE CARD 3D TILT */
  .feature-card:hover {
    transform: translateY(-4px) rotateX(1.5deg) rotateY(-1.5deg);
  }

  /* SCROLL INDICATOR */
  .scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.6;
    animation: fadeUp 0.8s 0.6s ease both;
    z-index: 2;
    cursor: pointer;
    transition: opacity 0.4s ease;
  }
  .scroll-indicator.hidden {
    opacity: 0;
    pointer-events: none;
  }
  .scroll-indicator svg {
    animation: scrollBounce 2s ease-in-out infinite;
  }
  @keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
  }

  /* DOWNLOAD SECTION SHIMMER */
  .btn-download {
    position: relative;
    overflow: hidden;
  }
  .btn-download::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: linear-gradient(45deg, transparent 40%, rgba(74,240,160,0.06) 50%, transparent 60%);
    transform: translateX(-100%);
    animation: downloadShimmer 4s ease-in-out infinite;
  }
  @keyframes downloadShimmer {
    0%, 80% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
  }

  /* STICKY CTA */
  .sticky-cta {
    position: fixed;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 99;
    padding: 12px 24px;
    background: var(--accent);
    color: #080c10;
    font-family: 'Unbounded', sans-serif;
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 24px rgba(74,240,160,0.3), 0 0 60px rgba(74,240,160,0.15);
    transition: bottom 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), transform 0.2s;
    text-decoration: none;
    letter-spacing: 0.02em;
  }
  .sticky-cta.visible {
    bottom: 28px;
  }
  .sticky-cta:hover {
    transform: translateX(-50%) translateY(-2px);
  }

  /* RESPONSIVE */
  @media (max-width: 768px) {
    nav { padding: 16px 24px; }
    .nav-links {
      display: flex;
      flex-direction: column;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background: rgba(8,12,16,0.97);
      backdrop-filter: blur(20px);
      padding: 0 24px;
      gap: 0;
      border-bottom: 1px solid var(--border);
      max-height: 0;
      overflow: hidden;
      opacity: 0;
      transition: max-height 0.35s cubic-bezier(0.4,0,0.2,1), opacity 0.25s ease, padding 0.35s cubic-bezier(0.4,0,0.2,1);
    }
    .nav-links.show {
      max-height: 400px;
      opacity: 1;
      padding: 24px 24px 32px;
    }
    .nav-links.show li { list-style: none; }
    .nav-links.show a {
      display: block;
      padding: 14px 0;
      font-size: 16px;
      color: var(--text);
      border-bottom: 1px solid var(--border);
    }
    .nav-links.show li:last-child a { border-bottom: none; }
    .mobile-menu-btn { display: block; }
    .nav-cta { display: none; }
    .sticky-cta.visible { bottom: 20px; }
    .scroll-indicator { bottom: 16px; }
    .hero { padding: 100px 24px 60px; }
    .hero-cta { flex-direction: column; align-items: center; }
    .btn-primary { width: 100%; justify-content: center; }
    section { padding: 80px 24px; }
    .steps { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .feature-card.large { grid-column: span 1; }
    .feature-card.large .feat-inner { flex-direction: column; }
    .hero-stats { gap: 24px; flex-wrap: wrap; }
    .stat { min-width: 80px; }
    .security-grid { grid-template-columns: 1fr; }
    .download { padding: 60px 24px; }
    .download-inner { padding: 48px 24px; }
    .download h2 { font-size: 28px; }
    footer { padding: 32px 24px; }
    .footer-inner { flex-direction: column; gap: 32px; }
    .footer-links { flex-direction: column; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
  }