:root {
            --unilak-green-dark: #004D25;
            --unilak-green: #006837;
            --unilak-green-light: #008346;
            --unilak-yellow: #FFD700;
            --unilak-yellow-dark: #FBC02D;
            --white: #FFFFFF;
            --gray-light: #F4F7F5;
            --text-dark: #1A2E22;
            --shadow-25d: 12px 12px 24px rgba(0, 77, 37, 0.25), -8px -8px 20px rgba(255, 255, 255, 0.8);
            --shadow-25d-inset: inset 6px 6px 12px rgba(0, 77, 37, 0.2), inset -6px -6px 12px rgba(255, 255, 255, 0.6);
        }

        * {
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Poppins', sans-serif;
            background: linear-gradient(135deg, #F4F7F5 0%, #E8F0EA 100%);
            color: var(--text-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* Navbar */
        header {
            background: linear-gradient(135deg, var(--unilak-green) 0%, var(--unilak-green-dark) 100%);
            box-shadow: 0 8px 24px rgba(0, 77, 37, 0.3);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 4px solid var(--unilak-yellow);
        }

        nav {
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .logo-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--unilak-yellow) 0%, var(--unilak-yellow-dark) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.5rem;
            color: var(--unilak-green-dark);
            box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.3), inset 2px 2px 4px rgba(255, 255, 255, 0.5);
        }

        .logo-text {
            color: var(--white);
            font-weight: 700;
            font-size: 1.25rem;
            letter-spacing: 0.5px;
        }

        .logo-text span {
            color: var(--unilak-yellow);
        }

        .nav-links {
            display: flex;
            gap: 8px;
            list-style: none;
        }

        .nav-links a {
            color: var(--white);
            text-decoration: none;
            padding: 10px 20px;
            border-radius: 10px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }

        .nav-links a.active {
            background: linear-gradient(135deg, var(--unilak-yellow) 0%, var(--unilak-yellow-dark) 100%);
            color: var(--unilak-green-dark);
            font-weight: 700;
            box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.2);
        }

        .btn-login {
            background: linear-gradient(135deg, var(--unilak-yellow) 0%, var(--unilak-yellow-dark) 100%);
            color: var(--unilak-green-dark) !important;
            font-weight: 700 !important;
            box-shadow: 4px 4px 12px rgba(0, 0, 0, 0.25), inset 2px 2px 4px rgba(255, 255, 255, 0.5);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .btn-login:hover {
            transform: translateY(-3px) !important;
            box-shadow: 6px 6px 16px rgba(0, 0, 0, 0.3), inset 2px 2px 4px rgba(255, 255, 255, 0.5) !important;
            background: linear-gradient(135deg, #FFE44D 0%, var(--unilak-yellow) 100%) !important;
        }

        /* Hero Section */
        .hero {
            max-width: 1200px;
            margin: 0 auto;
            padding: 4rem 2rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
            min-height: calc(100vh - 80px);
        }

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--unilak-green-dark);
            margin-bottom: 1.5rem;
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--unilak-green) 0%, var(--unilak-green-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.1rem;
            color: #4A6353;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary, .btn-secondary {
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--unilak-green) 0%, var(--unilak-green-dark) 100%);
            color: var(--white);
            box-shadow: 8px 8px 20px rgba(0, 77, 37, 0.35), inset 2px 2px 4px rgba(255, 255, 255, 0.2);
            border: 2px solid var(--unilak-green-light);
        }

        .btn-primary:hover {
            transform: translateY(-4px);
            box-shadow: 12px 12px 28px rgba(0, 77, 37, 0.45), inset 2px 2px 4px rgba(255, 255, 255, 0.2);
        }

        .btn-secondary {
            background: linear-gradient(135deg, var(--white) 0%, #F0F4F1 100%);
            color: var(--unilak-green-dark);
            box-shadow: 8px 8px 20px rgba(0, 77, 37, 0.15), inset 2px 2px 4px rgba(255, 255, 255, 0.8);
            border: 2px solid #D1DDD6;
        }

        .btn-secondary:hover {
            transform: translateY(-4px);
            box-shadow: 12px 12px 28px rgba(0, 77, 37, 0.25), inset 2px 2px 4px rgba(255, 255, 255, 0.8);
        }

        /* 2.5D Image Container */
        .hero-image-wrapper {
            position: relative;
            perspective: 1000px;
        }

        .hero-image-card {
            background: linear-gradient(135deg, #FFFFFF 0%, #F8FAF9 100%);
            border-radius: 24px;
            padding: 2rem;
            box-shadow: 20px 20px 50px rgba(0, 77, 37, 0.2), -10px -10px 30px rgba(255, 255, 255, 0.9);
            transform: rotateY(-5deg) rotateX(3deg);
            transition: transform 0.5s ease;
            border: 1px solid rgba(255, 255, 255, 0.8);
        }

        .hero-image-card:hover {
            transform: rotateY(0deg) rotateX(0deg);
        }

        .hero-image-card img {
            width: 100%;
            height: auto;
            border-radius: 16px;
            display: block;
        }

        /* Floating Badge */
        .floating-badge {
            position: absolute;
            background: linear-gradient(135deg, var(--unilak-yellow) 0%, var(--unilak-yellow-dark) 100%);
            color: var(--unilak-green-dark);
            padding: 12px 20px;
            border-radius: 16px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 8px 8px 20px rgba(0, 77, 37, 0.25);
            z-index: 10;
        }

        .badge-top {
            top: -10px;
            right: 20px;
            transform: rotate(5deg);
        }

        .badge-bottom {
            bottom: 20px;
            left: -20px;
            transform: rotate(-3deg);
            background: linear-gradient(135deg, var(--unilak-green) 0%, var(--unilak-green-light) 100%);
            color: var(--white);
        }

        /* Features Section */
        .features {
            max-width: 1200px;
            margin: 0 auto;
            padding: 4rem 2rem;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-title h2 {
            font-size: 2.25rem;
            color: var(--unilak-green-dark);
            font-weight: 800;
            margin-bottom: 0.5rem;
        }

        .section-title p {
            color: #5A7362;
            font-size: 1.05rem;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: linear-gradient(135deg, #FFFFFF 0%, #F8FAF9 100%);
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 12px 12px 30px rgba(0, 77, 37, 0.12), -6px -6px 20px rgba(255, 255, 255, 0.9);
            transition: all 0.4s ease;
            border: 1px solid rgba(255, 255, 255, 0.8);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 6px;
            background: linear-gradient(90deg, var(--unilak-green) 0%, var(--unilak-yellow) 100%);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 16px 16px 40px rgba(0, 77, 37, 0.2), -8px -8px 24px rgba(255, 255, 255, 1);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--unilak-green) 0%, var(--unilak-green-light) 100%);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin-bottom: 1.5rem;
            box-shadow: 6px 6px 14px rgba(0, 77, 37, 0.3), inset 2px 2px 4px rgba(255, 255, 255, 0.3);
        }

        .feature-card:nth-child(2) .feature-icon {
            background: linear-gradient(135deg, var(--unilak-yellow) 0%, var(--unilak-yellow-dark) 100%);
            box-shadow: 6px 6px 14px rgba(251, 192, 45, 0.4), inset 2px 2px 4px rgba(255, 255, 255, 0.5);
        }

        .feature-card:nth-child(3) .feature-icon {
            background: linear-gradient(135deg, var(--unilak-green-dark) 0%, var(--unilak-green) 100%);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            color: var(--unilak-green-dark);
            margin-bottom: 0.75rem;
            font-weight: 700;
        }

        .feature-card p {
            color: #5A7362;
            line-height: 1.6;
            font-size: 0.95rem;
        }

        /* Footer */
        footer {
            background: linear-gradient(135deg, var(--unilak-green-dark) 0%, #003318 100%);
            color: var(--white);
            padding: 32px;
            text-align: center;
            margin-top: 200px;
            border-top: 4px solid var(--unilak-yellow);
        }

        footer p {
            font-size: 0.9rem;
            opacity: 0.9;
        }

        footer strong {
            color: var(--unilak-yellow);
        }

        /* Responsive */
        @media (max-width: 900px) {
            .hero {
                grid-template-columns: 1fr;
                text-align: center;
                padding: 2rem 1.5rem;
            }

            .hero-content h1 {
                font-size: 2.25rem;
            }

            .hero-buttons {
                justify-content: center;
            }

            .hero-image-card {
                transform: none;
                max-width: 500px;
                margin: 0 auto;
            }

            .nav-links {
                gap: 4px;
            }

            .nav-links a {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 600px) {
            nav {
                flex-direction: column;
                gap: 1rem;
                padding: 1rem;
            }

            .nav-links {
                flex-wrap: wrap;
                justify-content: center;
            }

            .hero-content h1 {
                font-size: 1.75rem;
            }

            .section-title h2 {
                font-size: 1.75rem;
            }
        }