/* roulang page: index */
:root {
            --bg-base: #0B0F17;
            --card-base: #131B26;
            --brand-primary: #00DC82;
            --border-subtle: #1E293B;
        }
        * { box-sizing: border-box; }
        body {
            background-color: var(--bg-base);
            color: #F8FAFC;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }
        .glow-border {
            border: 1px solid rgba(30, 41, 59, 0.8);
            transition: all 0.3s ease;
        }
        .glow-border:hover {
            border-color: rgba(0, 220, 130, 0.4);
            box-shadow: 0 10px 30px -10px rgba(0, 220, 130, 0.15);
        }
        .glass-panel {
            background: rgba(19, 27, 38, 0.75);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .pulse-light {
            animation: pulseDot 2s infinite ease-in-out;
        }
        @keyframes pulseDot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.85); }
        }
        .img-cover-fit {
            object-fit: cover;
            object-position: center;
        }