/* roulang page: index */
:root {
      --primary: #10B981;
      --primary-hover: #059669;
      --primary-glow: #00F59B;
      --energy: #F97316;
      --dark-bg: #090D16;
      --dark-panel: #0F172A;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-soft: #E2E8F0;
    }
    
    body {
      color: var(--text-main);
      background-color: #F8FAFC;
      line-height: 1.8;
      letter-spacing: -0.015em;
      -webkit-font-smoothing: antialiased;
    }

    .hud-line {
      background: linear-gradient(90deg, rgba(16,185,129,0) 0%, rgba(16,185,129,0.8) 50%, rgba(16,185,129,0) 100%);
    }

    .glow-box:hover {
      box-shadow: 0 20px 40px -12px rgba(16, 185, 129, 0.2);
    }
    
    .tech-grid-bg {
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(15, 23, 42, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(15, 23, 42, 0.04) 1px, transparent 1px);
    }

    .dark-grid-bg {
      background-size: 36px 36px;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    }

    .number-display {
      font-variant-numeric: tabular-nums;
    }

    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
    }

    .accordion-item.active .accordion-content {
      max-height: 280px;
    }

    .accordion-item.active .chevron-icon {
      transform: rotate(180deg);
    }