:root {
            --primary-green: #90EE90;
            /* Signature Light Green */
            --tech-dark: #122b12;
            --white: #ffffff;
            --card-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
        }

        body {
            background-color: var(--white);
            font-family: 'Inter', 'Segoe UI', sans-serif;
            color: #333;
        }

        /* Hero Section */
        .tech-hero {
            background: linear-gradient(135deg, #f0fff0 0%, #ffffff 100%);
            padding: 80px 0;
            text-align: center;
            border-bottom: 5px solid var(--primary-green);
        }

        .hero-title {
            font-weight: 800;
            color: var(--tech-dark);
            font-size: 2.8rem;
        }

        /* Course Box UI */
        .skill-card {
            border: 1px solid #e8f5e8;
            border-radius: 18px;
            padding: 30px 20px;
            background: #fff;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .skill-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary-green);
            box-shadow: 0 15px 35px rgba(144, 238, 144, 0.2);
        }

        /* Icon Style - Gear shape vibe */
        .icon-tech {
            width: 65px;
            height: 65px;
            background: var(--primary-green);
            color: var(--tech-dark);
            border-radius: 50% 10% 50% 10%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin: 0 auto 20px;
        }

        .course-name {
            font-weight: 700;
            color: var(--tech-dark);
            margin-bottom: 10px;
        }

        /* Action Buttons */
        .button-flex {
            margin-top: auto;
            display: flex;
            gap: 10px;
            padding-top: 20px;
        }

        .btn-apply {
            background-color: var(--tech-dark);
            color: white !important;
            padding: 10px 15px;
            border-radius: 10px;
            font-weight: 600;
            text-decoration: none;
            flex-grow: 1;
            transition: 0.3s;
        }

        .btn-apply:hover {
            background-color: #000;
        }

        .btn-wa {
            background-color: #25d366;
            color: white !important;
            width: 46px;
            height: 46px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            font-size: 22px;
            transition: 0.3s;
        }

        .btn-wa:hover {
            transform: scale(1.1);
            background-color: #128c7e;
        }

        .type-badge {
            font-size: 0.7rem;
            text-transform: uppercase;
            font-weight: 800;
            background: rgba(144, 238, 144, 0.4);
            color: #0f3d0f;
            padding: 3px 12px;
            border-radius: 50px;
            margin-bottom: 12px;
            display: inline-block;
        }