/* roulang page: index */
:root {
      --primary-gradient: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
      --dark-bg: #0F172A;
      --card-border: rgba(226, 232, 240, 0.85);
      --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    body {
      font-family: var(--font-main);
      color: #334155;
      background-color: #F8FAFC;
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
    }
    .gradient-brand {
      background: var(--primary-gradient);
    }
    .gradient-brand-text {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      border: 1px solid var(--card-border);
    }
    .card-hover-effect:hover {
      transform: translateY(-6px);
      box-shadow: 0 20px 30px -10px rgba(37, 99, 235, 0.15);
      border-color: rgba(37, 99, 235, 0.3);
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.375rem;
      padding: 0.25rem 0.875rem;
      border-radius: 9999px;
      font-size: 0.8125rem;
      font-weight: 600;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out, opacity 0.3s ease;
      opacity: 0;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      opacity: 1;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }
    .hero-skew-box {
      transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
      transition: transform 0.5s ease;
    }
    .hero-skew-box:hover {
      transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
    }