/* roulang page: index */
:root {
      --primary: #0066FF;
      --primary-dark: #0040C1;
      --accent: #FF5500;
      --bg-base: #FFFFFF;
      --bg-alt: #F4F6FB;
      --text-main: #111827;
      --text-muted: #4B5563;
      --radius-xl: 1rem;
      --radius-2xl: 1.25rem;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: var(--text-main);
      background-color: var(--bg-base);
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
    }
    .custom-shadow:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 28px -4px rgba(0, 102, 255, 0.12);
    }
    .text-gradient {
      background: linear-gradient(135deg, #0066FF 0%, #0040C1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }