/* roulang page: index */
:root {
      --primary: #00D26A;
      --accent-purple: #7B2CBF;
      --accent-orange: #FF7A00;
      --dark-bg: #0E1117;
      --light-bg: #F4F6F9;
      --text-main: #111827;
      --text-muted: #4B5563;
      --border-color: #E5E7EB;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: var(--light-bg);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 20%, rgba(0, 210, 106, 0.15) 0%, rgba(14, 17, 23, 0) 70%);
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 6px -1px rgba(0, 0, 0, 0.02);
    }
    .custom-shadow:hover {
      box-shadow: 0 12px 28px -4px rgba(0, 210, 106, 0.12), 0 6px 12px -2px rgba(0, 0, 0, 0.04);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .accordion-content.active {
      max-height: 280px;
    }
    .rotate-chevron {
      transition: transform 0.3s ease;
    }
    .rotate-chevron.active {
      transform: rotate(180deg);
    }