:root {
            --primary-color: #006643; /* Verde institucional */
            --dark-bg: #121212;
            --card-bg: #1e1e1e;
            --text-color: #ffffff;
            --text-secondary: #a0a0a0;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: var(--dark-bg);
            color: var(--text-color);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            align-items: center;
            overflow-x: hidden;
        }

        /* Fondo decorativo sutil */
        body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at center, rgba(0, 102, 67, 0.15) 0%, transparent 70%);
            z-index: -1;
        }

        header {
            text-align: center;
            padding: 40px 20px 20px 20px;
            width: 100%;
        }

        .logo-container {
            margin-bottom: 20px;
        }

        .logo {
            max-width: 450px;
            height: auto;
            filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.7));
            transition: transform 0.3s ease;
        }

        .logo:hover {
            transform: scale(1.03);
        }

        h1 {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 5px;
            text-transform: uppercase;
            background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        h2 {
            font-size: 1.3rem;
            color: var(--primary-color);
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .status-badge {
            display: inline-block;
            background-color: rgba(0, 230, 118, 0.1);
            color: #00e676;
            border: 1px solid #00e676;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-top: 10px;
            box-shadow: 0 0 10px rgba(0, 230, 118, 0.2);
        }

        main {
            width: 100%;
            max-width: 900px;
            padding: 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin: auto 0;
        }

        .card {
            background-color: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 30px 25px;
            text-align: center;
            text-decoration: none;
            color: var(--text-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            position: relative;
            overflow: hidden;
        }

        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary-color);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .card:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 102, 67, 0.4);
            box-shadow: 0 15px 35px rgba(0, 102, 67, 0.2);
        }

        .card:hover::before {
            transform: scaleX(1);
        }

        .card-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
            color: var(--primary-color);
        }

        .card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-index: 1.4;
        }

        footer {
            width: 100%;
            text-align: center;
            padding: 30px 20px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            background-color: rgba(0, 0, 0, 0.2);
        }

        /* Ajustes para pantallas pequeñas */
        @media (max-width: 600px) {
            h1 { font-size: 1.7rem; }
            h2 { font-size: 1.1rem; }
            .logo { max-width: 180px; }
        }