/* roulang page: index */
:root {
      --primary: #1A56DB;
      --primary-hover: #1442af;
      --secondary-green: #0E9F6E;
      --secondary-orange: #FF8A4C;
      --bg-base: #F9FAFB;
      --bg-card: #FFFFFF;
      --text-main: #111827;
      --text-muted: #4B5563;
      --text-light: #9CA3AF;
      --border-color: #E5E7EB;
      --dark-slate: #0F172A;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(17, 24, 39, 0.05), 0 2px 6px -1px rgba(17, 24, 39, 0.02);
      transition: all 0.25s ease-in-out;
    }
    .custom-shadow:hover {
      box-shadow: 0 16px 32px -4px rgba(26, 86, 219, 0.08), 0 6px 16px -2px rgba(17, 24, 39, 0.04);
      transform: translateY(-3px);
    }
    .coupon-edge {
      background: radial-gradient(circle at 0 center, transparent 8px, #FFFFFF 8.5px) top left,
                  radial-gradient(circle at 100% center, transparent 8px, #FFFFFF 8.5px) top right;
      background-size: 100% 100%;
    }