/* roulang page: index */
:root {
      --primary: #1e40af;
      --primary-dark: #1e3a8a;
      --primary-light: #3b82f6;
      --accent: #0ea5e9;
      --accent-sport: #10b981;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-dark: #0b1528;
      --text-title: #0f172a;
      --text-body: #475569;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 4px 6px -1px rgba(15, 23, 42, 0.05);
      --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.02);
      --shadow-hover: 0 20px 25px -5px rgba(30, 64, 175, 0.12), 0 10px 10px -5px rgba(30, 64, 175, 0.04);
      --transition: all 0.25s ease;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-body);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3, h4, h5, h6 {
      color: var(--text-title);
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    a {
      text-decoration: none;
      transition: var(--transition);
    }

    /* Top Utility Bar */
    .top-bar {
      background-color: #0f172a;
      color: #94a3b8;
      font-size: 0.825rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 0.45rem 0;
    }
    .top-bar a {
      color: #cbd5e1;
    }
    .top-bar a:hover {
      color: #ffffff;
    }
    .status-pulse {
      display: inline-block;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background-color: #10b981;
      margin-right: 6px;
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
    }

    /* Sticky Main Nav */
    .main-nav {
      position: sticky;
      top: 0;
      z-index: 1020;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .navbar-brand {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary) !important;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .navbar-brand .brand-badge {
      font-size: 0.7rem;
      background: #eff6ff;
      color: var(--primary);
      padding: 0.15rem 0.5rem;
      border-radius: 4px;
      font-weight: 600;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-title) !important;
      padding: 0.5rem 0.9rem !important;
      border-radius: 6px;
    }
    .nav-link:hover {
      color: var(--primary) !important;
      background: rgba(30, 64, 175, 0.04);
    }

    /* Buttons */
    .btn-brand-primary {
      background-color: var(--primary);
      color: #ffffff;
      border: 1px solid var(--primary);
      border-radius: var(--radius-sm);
      font-weight: 600;
      padding: 0.6rem 1.4rem;
      box-shadow: 0 4px 12px rgba(30, 64, 175, 0.2);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }
    .btn-brand-primary:hover {
      background-color: var(--primary-dark);
      border-color: var(--primary-dark);
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(30, 64, 175, 0.3);
    }
    .btn-brand-ghost {
      background-color: transparent;
      color: var(--primary);
      border: 1px solid rgba(30, 64, 175, 0.3);
      border-radius: var(--radius-sm);
      font-weight: 600;
      padding: 0.6rem 1.4rem;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }
    .btn-brand-ghost:hover {
      background-color: rgba(30, 64, 175, 0.05);
      border-color: var(--primary);
      color: var(--primary-dark);
      transform: translateY(-2px);
    }

    /* Section Global Spacing */
    .section-spacing {
      padding: 5.5rem 0;
      position: relative;
    }
    .section-spacing-alt {
      padding: 5.5rem 0;
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      margin-bottom: 3.5rem;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.785rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--primary);
      background: #eff6ff;
      border: 1px solid #dbeafe;
      padding: 0.3rem 0.85rem;
      border-radius: 50px;
      margin-bottom: 0.85rem;
    }
    .section-title {
      font-size: 2.15rem;
      margin-bottom: 1rem;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto;
    }

    /* Card System */
    .custom-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      overflow: hidden;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .custom-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #cbd5e1;
    }
    .card-pad {
      padding: 2rem;
    }

    /* Hero Section (Voucher Wall Blueprint) */
    .hero-section {
      background: linear-gradient(180deg, #f0f7ff 0%, #f8fafc 100%);
      padding: 4.5rem 0 5.5rem;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: url('/assets/images/8b96203d86f6ea1a.jpg') center/cover no-repeat;
      opacity: 0.04;
      pointer-events: none;
    }
    .voucher-main {
      background: linear-gradient(135deg, #1e40af 0%, #0f172a 100%);
      border-radius: var(--radius-lg);
      color: #ffffff;
      padding: 2.25rem;
      position: relative;
      overflow: hidden;
      box-shadow: 0 20px 35px -10px rgba(15, 23, 42, 0.3);
    }
    .voucher-main::before {
      content: '';
      position: absolute;
      left: -15px;
      top: 50%;
      transform: translateY(-50%);
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background: #f0f7ff;
    }
    .voucher-main::after {
      content: '';
      position: absolute;
      right: -15px;
      top: 50%;
      transform: translateY(-50%);
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background: #f0f7ff;
    }
    .voucher-badge {
      display: inline-block;
      background: #10b981;
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.65rem;
      border-radius: 4px;
      margin-bottom: 1rem;
    }
    .voucher-tier-card {
      background: #ffffff;
      border: 1px dashed #cbd5e1;
      border-radius: var(--radius-md);
      padding: 1.25rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition);
      margin-bottom: 1rem;
    }
    .voucher-tier-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
      transform: translateX(4px);
    }

    /* Dark Theme Showcase */
    .dark-showcase-section {
      background-color: var(--bg-dark);
      color: #f1f5f9;
      padding: 6rem 0;
      position: relative;
    }
    .dark-showcase-section .section-title {
      color: #ffffff;
    }
    .dark-showcase-section .section-desc {
      color: #94a3b8;
    }
    .dark-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 2.25rem;
      backdrop-filter: blur(8px);
      height: 100%;
    }
    .pitch-board {
      background: rgba(16, 185, 129, 0.08);
      border: 2px dashed rgba(16, 185, 129, 0.4);
      border-radius: 8px;
      position: relative;
      height: 320px;
      overflow: hidden;
    }
    .pitch-line {
      position: absolute;
      top: 50%;
      left: 0;
      width: 100%;
      height: 1px;
      background: rgba(255, 255, 255, 0.2);
    }
    .pitch-center-circle {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 90px;
      height: 90px;
      border: 1px solid rgba(255, 255, 255, 0.25);
      border-radius: 50%;
    }
    .player-node {
      position: absolute;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      box-shadow: 0 0 10px currentColor;
    }

    /* Metrics Strip */
    .metrics-bar {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 3rem 0;
    }
    .metric-value {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.1;
      color: var(--primary);
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }

    /* Accordion Customization */
    .accordion-custom .accordion-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      margin-bottom: 1rem;
      border-radius: var(--radius-sm) !important;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .accordion-custom .accordion-button {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-title);
      padding: 1.25rem 1.5rem;
      background: #ffffff;
    }
    .accordion-custom .accordion-button:not(.collapsed) {
      color: var(--primary);
      background-color: #f8fafc;
      box-shadow: none;
    }
    .accordion-custom .accordion-body {
      padding: 1.25rem 1.5rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* Floating Conversion Bar */
    .floating-bar {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      width: calc(100% - 40px);
      max-width: 960px;
      background: rgba(15, 23, 42, 0.94);
      backdrop-filter: blur(12px);
      color: #ffffff;
      border-radius: 50px;
      padding: 0.75rem 1.75rem;
      z-index: 1000;
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
      border: 1px solid rgba(255, 255, 255, 0.12);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition);
    }

    /* Footer */
    .site-footer {
      background-color: #0b1528;
      color: #94a3b8;
      padding: 5rem 0 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.925rem;
    }
    .site-footer h6 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 1.25rem;
    }
    .site-footer a {
      color: #94a3b8;
    }
    .site-footer a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      margin-top: 4rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.825rem;
      color: #64748b;
    }

    /* Responsive */
    @media (max-width: 991.98px) {
      .section-spacing { padding: 4rem 0; }
      .section-title { font-size: 1.85rem; }
      .floating-bar {
        border-radius: 12px;
        bottom: 10px;
        width: calc(100% - 20px);
        padding: 0.75rem 1rem;
        flex-direction: column;
        gap: 0.6rem;
        text-align: center;
      }
    }