/* roulang page: index */
:root {
      --primary: #1E3A8A;
      --secondary: #059669;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --bg-page: #F8FAFC;
      --bg-card: #FFFFFF;
      --border-color: #E2E8F0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -1px rgba(0,0,0,0.04);
      --shadow-hover: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
    }
    html {
      scroll-behavior: smooth;
      box-sizing: border-box;
    }
    *, *::before, *::after {
      box-sizing: inherit;
    }
    body {
      background-color: var(--bg-page);
      color: var(--text-body);
      line-height: 1.75;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }
    h1, h2, h3, h4, h5, h6 {
      color: var(--text-main);
      line-height: 1.35;
      font-weight: 700;
    }
    .custom-container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      padding: 4px 10px;
      font-size: 12px;
      font-weight: 600;
      border-radius: 9999px;
      letter-spacing: -0.01em;
    }
    .card-base {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease-in-out;
    }
    .card-base:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
      border-color: #CBD5E1;
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .accordion-item.active .accordion-content {
      max-height: 280px;
    }
    .accordion-item.active .accordion-arrow {
      transform: rotate(180deg);
    }