:root {
      --bg-dark: #0a0f1a;
      --bg-card: #111827;
      --bg-card-hover: #162032;
      --bg-section-alt: #0d1320;
      --cyan: #22d3ee;
      --cyan-dim: #0e7490;
      --cyan-glow: rgba(34, 211, 238, 0.15);
      --text-primary: #f1f5f9;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --border-color: #1e293b;
    }

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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 80px;
    }

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

    /* ── Navbar ── */
    .navbar-custom {
      background: rgba(10, 15, 26, 0.92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      padding: 0.75rem 0;
      transition: all 0.3s ease;
    }

    .navbar-custom .navbar-brand {
      font-weight: 800;
      font-size: 1.35rem;
      color: var(--text-primary);
      letter-spacing: -0.02em;
    }

    .navbar-custom .navbar-brand span {
      color: var(--cyan);
    }

    .navbar-custom .nav-link {
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 0.9rem;
      padding: 0.5rem 1rem !important;
      transition: color 0.2s;
    }

    .navbar-custom .nav-link:hover,
    .navbar-custom .nav-link.active {
      color: var(--cyan);
    }

    .navbar-custom .navbar-toggler {
      border-color: var(--border-color);
      padding: 0.4rem 0.65rem;
    }

    .navbar-custom .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

    .btn-cyan {
      background: var(--cyan);
      color: #0a0f1a;
      font-weight: 600;
      border: none;
      transition: all 0.3s;
    }

    .btn-cyan:hover {
      background: #06b6d4;
      color: #0a0f1a;
      transform: translateY(-1px);
      box-shadow: 0 8px 25px rgba(34, 211, 238, 0.3);
    }

    .btn-outline-cyan {
      border: 2px solid var(--cyan);
      color: var(--cyan);
      font-weight: 600;
      background: transparent;
      transition: all 0.3s;
    }

    .btn-outline-cyan:hover {
      background: var(--cyan);
      color: #0a0f1a;
      transform: translateY(-1px);
    }

    /* ── Section Helpers ── */
    .section-dark {
      background: var(--bg-dark);
    }

    .section-alt {
      background: var(--bg-section-alt);
    }

    .section-padding {
      padding: 5rem 0;
    }

    .section-label {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.15em;
      color: var(--cyan);
      border: 1px solid var(--cyan-dim);
      border-radius: 9999px;
      padding: 0.3rem 1rem;
      margin-bottom: 1rem;
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
    }

    .section-subtitle {
      color: var(--text-secondary);
      font-size: 1.1rem;
      max-width: 640px;
      line-height: 1.6;
    }

    .text-cyan {
      color: var(--cyan) !important;
    }

    /* ── Cards ── */
    .dark-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 1rem;
      padding: 2rem;
      transition: all 0.35s ease;
      height: 100%;
    }

    .dark-card:hover {
      border-color: var(--cyan-dim);
      background: var(--bg-card-hover);
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(34, 211, 238, 0.08);
    }

    .icon-box {
      width: 56px;
      height: 56px;
      border-radius: 0.75rem;
      background: var(--cyan-glow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: var(--cyan);
      margin-bottom: 1.25rem;
      flex-shrink: 0;
    }

    /* ── Hero ── */
    .hero-section {
      min-height: 100vh;
      display: flex;
      align-items: center;
      position: relative;
      overflow: hidden;
      padding-top: 80px;
    }

    .hero-section::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -30%;
      width: 700px;
      height: 700px;
      background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--cyan);
      background: var(--cyan-glow);
      border: 1px solid var(--cyan-dim);
      border-radius: 9999px;
      padding: 0.4rem 1.15rem;
      margin-bottom: 1.5rem;
    }

    .hero-title {
      font-size: clamp(2.25rem, 5vw, 3.75rem);
      font-weight: 900;
      line-height: 1.1;
      letter-spacing: -0.03em;
      margin-bottom: 1.5rem;
    }

    .hero-desc {
      color: var(--text-secondary);
      font-size: 1.15rem;
      line-height: 1.7;
      max-width: 540px;
      margin-bottom: 2rem;
    }

    .trust-row {
      display: flex;
      flex-wrap: wrap;
      gap: 2rem;
      margin-top: 3rem;
      color: var(--text-muted);
      font-size: 0.85rem;
    }

    .trust-row .num {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-primary);
      display: block;
    }

    /* ── Process ── */
    .process-step-num {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--cyan-glow);
      border: 2px solid var(--cyan-dim);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--cyan);
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    .process-connector {
      display: none;
    }

    @media (min-width: 768px) {
      .process-connector {
        display: block;
        position: absolute;
        top: 24px;
        left: calc(50% + 30px);
        width: calc(100% - 60px);
        height: 2px;
        background: linear-gradient(90deg, var(--cyan-dim), transparent);
      }
    }

    /* ── Metrics ── */
    .metric-number {
      font-size: 3rem;
      font-weight: 900;
      color: var(--cyan);
      line-height: 1;
      margin-bottom: 0.25rem;
    }

    /* ── Testimonials ── */
    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 1rem;
      padding: 2rem;
      height: 100%;
    }

    .testimonial-card .stars {
      color: #fbbf24;
      margin-bottom: 1rem;
    }

    .testimonial-card blockquote {
      color: var(--text-secondary);
      font-size: 0.95rem;
      line-height: 1.7;
      font-style: italic;
      margin-bottom: 1.25rem;
    }

    .avatar-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--cyan-glow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--cyan);
      font-size: 1rem;
      flex-shrink: 0;
    }

    /* ── Contact ── */
    .form-dark .form-control,
    .form-dark .form-select {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      color: var(--text-primary);
      border-radius: 0.625rem;
      padding: 0.75rem 1rem;
      font-size: 0.95rem;
      transition: border-color 0.2s;
    }

    .form-dark .form-control:focus,
    .form-dark .form-select:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
      background: var(--bg-card);
      color: var(--text-primary);
    }

    .form-dark .form-control::placeholder {
      color: var(--text-muted);
    }

    .form-dark label {
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 0.875rem;
      margin-bottom: 0.35rem;
    }

    .form-dark .form-select option {
      background: var(--bg-card);
      color: var(--text-primary);
    }

    /* ── Footer ── */
    .footer-section {
      background: #070b14;
      border-top: 1px solid var(--border-color);
    }

    .footer-section a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s;
    }

    .footer-section a:hover {
      color: var(--cyan);
    }

    /* ── Glow hover on icon-box ── */
    .dark-card:hover .icon-box {
      background: rgba(34, 211, 238, 0.25);
    }

    /* ── Responsive tweaks ── */
    @media (max-width: 767.98px) {
      .section-padding {
        padding: 3.5rem 0;
      }

      .section-title {
        font-size: 1.75rem;
      }

      .hero-section {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: 3rem;
      }

      .metric-number {
        font-size: 2.25rem;
      }

      .trust-row {
        gap: 1.25rem;
      }
    }