:root {
      --bg: #0b0f14;
      --bg-elevated: #12181f;
      --bg-card: #161d26;
      --border: rgba(255, 255, 255, 0.08);
      --text: #f4f6f8;
      --text-muted: #9aa4b2;
      --text-soft: #6b7280;
      --accent: #3b82f6;
      --accent-hover: #2563eb;
      --accent-soft: rgba(59, 130, 246, 0.12);
      --success: #22c55e;
      --success-soft: rgba(34, 197, 94, 0.12);
      --warning: #f59e0b;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.5);
      --max: 1120px;
    }

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

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

    body {
      font-family: 'Inter', system-ui, -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      font-size: 16px;
      overflow-x: hidden;
    }

    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; }
    ul { list-style: none; }

    .container {
      width: 100%;
      max-width: var(--max);
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* ========== HEADER ========== */
    header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(11, 15, 20, 0.85);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid transparent;
      transition: border-color 0.2s, background 0.2s;
    }
    header.scrolled {
      border-bottom-color: var(--border);
    }

    .nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-weight: 700;
      font-size: 1.25rem;
      letter-spacing: -0.02em;
    }
    .logo-mark {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, #3b82f6, #1d4ed8);
      border-radius: 9px;
      display: grid;
      place-items: center;
      font-size: 0.9rem;
      font-weight: 800;
      color: white;
    }

    .nav-links {
      display: none;
      align-items: center;
      gap: 2rem;
    }
    .nav-links a {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
      transition: color 0.15s;
    }
    .nav-links a:hover { color: var(--text); }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.7rem 1.25rem;
      border-radius: 999px;
      font-weight: 600;
      font-size: 0.9rem;
      transition: all 0.2s;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--accent);
      color: white;
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }
    .btn-ghost {
      color: var(--text-muted);
      border: 1px solid var(--border);
      background: transparent;
    }
    .btn-ghost:hover {
      color: var(--text);
      border-color: rgba(255,255,255,0.18);
    }
    .btn-lg {
      padding: 0.95rem 1.75rem;
      font-size: 1rem;
    }

    .menu-toggle {
      display: flex;
      flex-direction: column;
      gap: 5px;
      padding: 6px;
      width: 36px;
    }
    .menu-toggle span {
      display: block;
      height: 2px;
      background: var(--text);
      border-radius: 1px;
      transition: 0.2s;
    }

    /* Mobile menu */
    .mobile-menu {
      display: none;
      position: fixed;
      inset: 64px 0 0 0;
      background: var(--bg);
      padding: 1.5rem;
      flex-direction: column;
      gap: 0.5rem;
      z-index: 99;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a {
      padding: 0.9rem 1rem;
      border-radius: var(--radius-sm);
      color: var(--text-muted);
      font-weight: 500;
    }
    .mobile-menu a:hover { background: var(--bg-elevated); color: var(--text); }
    .mobile-menu .btn { margin-top: 1rem; width: 100%; }

    /* ========== HERO ========== */
    .hero {
      padding: 8.5rem 0 5rem;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: -20%;
      left: 50%;
      transform: translateX(-50%);
      width: 900px;
      height: 600px;
      background: radial-gradient(ellipse, rgba(59, 130, 246, 0.18) 0%, transparent 70%);
      pointer-events: none;
    }

    .hero-content {
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
      position: relative;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      padding: 0.35rem 0.85rem;
      background: var(--accent-soft);
      color: #93c5fd;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
      border: 1px solid rgba(59, 130, 246, 0.25);
    }
    .badge-dot {
      width: 6px;
      height: 6px;
      background: var(--accent);
      border-radius: 50%;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.4; }
    }

    h1 {
      font-size: clamp(2.25rem, 5.5vw, 3.5rem);
      font-weight: 800;
      line-height: 1.12;
      letter-spacing: -0.03em;
      margin-bottom: 1.25rem;
    }
    h1 span {
      background: linear-gradient(135deg, #60a5fa, #3b82f6);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-sub {
      font-size: 1.125rem;
      color: var(--text-muted);
      max-width: 540px;
      margin: 0 auto 2rem;
      line-height: 1.65;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      justify-content: center;
      margin-bottom: 3rem;
    }

    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 2rem;
      padding-top: 1.5rem;
      border-top: 1px solid var(--border);
    }
    .stat {
      text-align: center;
    }
    .stat-value {
      font-size: 1.5rem;
      font-weight: 700;
      letter-spacing: -0.02em;
    }
    .stat-label {
      font-size: 0.8rem;
      color: var(--text-soft);
      margin-top: 0.15rem;
    }

    /* ========== SECTIONS ========== */
    section {
      padding: 5rem 0;
    }
    .section-label {
      font-size: 0.8rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent);
      margin-bottom: 0.75rem;
    }
    h2 {
      font-size: clamp(1.75rem, 4vw, 2.25rem);
      font-weight: 700;
      letter-spacing: -0.025em;
      line-height: 1.2;
      margin-bottom: 1rem;
    }
    .section-intro {
      color: var(--text-muted);
      max-width: 540px;
      margin-bottom: 2.5rem;
      font-size: 1.05rem;
    }

    /* ========== SERVICES ========== */
    .services-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.25rem;
    }
    @media (min-width: 640px) {
      .services-grid { grid-template-columns: repeat(3, 1fr); }
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 1.75rem;
      transition: border-color 0.2s, transform 0.2s;
    }
    .service-card:hover {
      border-color: rgba(59, 130, 246, 0.35);
      transform: translateY(-2px);
    }
    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      font-size: 1.5rem;
      margin-bottom: 1.25rem;
      background: var(--accent-soft);
    }
    .service-card h3 {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
    }
    .service-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.55;
    }

    /* ========== HOW IT WORKS ========== */
    .steps {
      display: grid;
      gap: 1.5rem;
    }
    @media (min-width: 768px) {
      .steps { grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
    }

    .step {
      position: relative;
      padding: 1.5rem;
      background: var(--bg-elevated);
      border-radius: var(--radius);
      border: 1px solid var(--border);
    }
    .step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--accent);
      color: white;
      font-weight: 700;
      font-size: 0.85rem;
      display: grid;
      place-items: center;
      margin-bottom: 1rem;
    }
    .step h3 {
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 0.4rem;
    }
    .step p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* ========== SAFETY ========== */
    .safety {
      background: var(--bg-elevated);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .safety-grid {
      display: grid;
      gap: 2.5rem;
    }
    @media (min-width: 768px) {
      .safety-grid {
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: 4rem;
      }
    }

    .safety-features {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .safety-item {
      display: flex;
      gap: 1rem;
      align-items: flex-start;
    }
    .safety-icon {
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--success-soft);
      color: var(--success);
      display: grid;
      place-items: center;
      font-size: 1.1rem;
    }
    .safety-item h3 {
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 0.25rem;
    }
    .safety-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .safety-visual {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 1.75rem;
      box-shadow: var(--shadow);
    }
    .safety-visual-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 1.5rem;
    }
    .safety-visual-header span {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
    }
    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      padding: 0.3rem 0.7rem;
      background: var(--success-soft);
      color: var(--success);
      border-radius: 999px;
      font-size: 0.75rem;
      font-weight: 600;
    }
    .status-pill::before {
      content: '';
      width: 6px;
      height: 6px;
      background: var(--success);
      border-radius: 50%;
    }

    .timeline {
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    .timeline-item {
      display: flex;
      gap: 1rem;
      padding-bottom: 1.25rem;
      position: relative;
    }
    .timeline-item:last-child { padding-bottom: 0; }
    .timeline-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--accent);
      flex-shrink: 0;
      margin-top: 4px;
      position: relative;
      z-index: 1;
    }
    .timeline-item:not(:last-child) .timeline-dot::after {
      content: '';
      position: absolute;
      top: 12px;
      left: 50%;
      transform: translateX(-50%);
      width: 2px;
      height: calc(100% + 1.25rem - 12px);
      background: var(--border);
    }
    .timeline-content h4 {
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 0.15rem;
    }
    .timeline-content p {
      font-size: 0.8rem;
      color: var(--text-soft);
    }

    /* ========== WHY ========== */
    .why-grid {
      display: grid;
      gap: 1.25rem;
    }
    @media (min-width: 640px) {
      .why-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (min-width: 900px) {
      .why-grid { grid-template-columns: repeat(3, 1fr); }
    }

    .why-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 1.5rem;
    }
    .why-card h3 {
      font-size: 1.05rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .why-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* ========== CTA ========== */
    .cta {
      text-align: center;
      padding: 5rem 0 6rem;
    }
    .cta-box {
      background: linear-gradient(160deg, rgba(59, 130, 246, 0.15), rgba(29, 78, 216, 0.08));
      border: 1px solid rgba(59, 130, 246, 0.25);
      border-radius: 24px;
      padding: 3rem 1.5rem;
      max-width: 640px;
      margin: 0 auto;
    }
    .cta-box h2 {
      margin-bottom: 0.75rem;
    }
    .cta-box p {
      color: var(--text-muted);
      margin-bottom: 1.75rem;
      max-width: 420px;
      margin-left: auto;
      margin-right: auto;
    }
    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
      max-width: 400px;
      margin: 0 auto;
    }
    @media (min-width: 480px) {
      .cta-form {
        flex-direction: row;
      }
    }
    .cta-form input {
      flex: 1;
      padding: 0.9rem 1.15rem;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: var(--bg);
      color: var(--text);
      font-size: 0.95rem;
      font-family: inherit;
      outline: none;
      transition: border-color 0.15s;
    }
    .cta-form input:focus {
      border-color: var(--accent);
    }
    .cta-form input::placeholder {
      color: var(--text-soft);
    }
    .cta-note {
      font-size: 0.8rem;
      color: var(--text-soft);
      margin-top: 1rem;
    }

    /* ========== FOOTER ========== */
    footer {
      border-top: 1px solid var(--border);
      padding: 3rem 0 2rem;
    }
    .footer-grid {
      display: grid;
      gap: 2rem;
      margin-bottom: 2.5rem;
    }
    @media (min-width: 640px) {
      .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
      }
    }
    .footer-brand p {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-top: 0.75rem;
      max-width: 280px;
      line-height: 1.55;
    }
    .footer-col h4 {
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 1rem;
      color: var(--text);
    }
    .footer-col a {
      display: block;
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
      transition: color 0.15s;
    }
    .footer-col a:hover { color: var(--text); }

    .footer-bottom {
      padding-top: 1.5rem;
      border-top: 1px solid var(--border);
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: var(--text-soft);
    }

    /* ========== RESPONSIVE NAV ========== */
    @media (min-width: 768px) {
      .nav-links { display: flex; }
      .menu-toggle { display: none; }
      .nav-cta .btn-ghost { display: inline-flex; }
    }
    @media (max-width: 767px) {
      .nav-cta .btn-ghost { display: none; }
    }