/* roulang page: index */
:root {
        --color-primary: #1E40AF;
        --color-accent: #059669;
        --color-bg-alt: #F8FAFC;
      }
      body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
        color: #334155;
        background-color: #FFFFFF;
      }
      .card-shadow {
        box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
        transition: transform 0.25s ease, box-shadow 0.25s ease;
      }
      .card-shadow:hover {
        transform: translateY(-4px);
        box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      }
      .border-glow:hover {
        border-color: #3B82F6;
      }
      details summary::-webkit-details-marker {
        display: none;
      }