:root {
            --primary-blue: #4FC3F7;
            --secondary-blue: #81D4FA;
            --dark-blue: #0288D1;
            --light-bg: #E1F5FE;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .navbar {
            background: linear-gradient(135deg, var(--dark-blue), var(--primary-blue));
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .navbar-brand {
            font-weight: bold;
            font-size: 1.5rem;
            color: white !important;
        }

        .nav-link {
            color: rgba(255,255,255,0.9) !important;
            transition: color 0.3s;
        }

        .nav-link:hover {
            color: white !important;
        }

        .hero-section {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            color: white;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,106.7C1248,96,1344,96,1392,96L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
            background-size: cover;
        }

        .carousel-caption-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(2, 136, 209, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
        }

        .carousel-caption-overlay h1,
        .carousel-caption-overlay p {
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .carousel-indicators button {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: white;
        }

        .carousel-control-prev-icon,
        .carousel-control-next-icon {
            width: 3rem;
            height: 3rem;
        }

        .section-title {
            color: var(--dark-blue);
            font-weight: bold;
            margin-bottom: 40px;
            position: relative;
            padding-bottom: 15px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: var(--primary-blue);
        }

        .feature-card {
            border: none;
            border-radius: 15px;
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(79, 195, 247, 0.3);
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 2rem;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--dark-blue), var(--primary-blue));
            border: none;
            padding: 12px 30px;
            border-radius: 25px;
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(79, 195, 247, 0.4);
            background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
        }

        .form-control:focus {
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 0.2rem rgba(79, 195, 247, 0.25);
        }

        .about-section {
            background: var(--light-bg);
        }

        .contact-info-box {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            margin-bottom: 20px;
        }

        .contact-info-box i {
            color: var(--primary-blue);
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        footer {
            background: linear-gradient(135deg, var(--dark-blue), var(--primary-blue));
            color: white;
            padding: 40px 0 20px;
        }

        .director-card {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            text-align: center;
        }

        .director-icon {
            width: 100px;
            height: 100px;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 3rem;
        }

        .alert {
            border-radius: 10px;
        }

        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--dark-blue), var(--primary-blue));
            color: white;
            border-radius: 50%;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            z-index: 1000;
            box-shadow: 0 4px 15px rgba(79, 195, 247, 0.4);
            transition: all 0.3s ease;
            border: none;
        }

        .back-to-top:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 20px rgba(79, 195, 247, 0.6);
            background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
        }

        .back-to-top.show {
            display: flex;
        }