body {
    background-color: #E8F5E9;
    font-family: Arial, sans-serif;
}
.header {
    background-color: #f8f9fa;
    padding: 20px 0;
    border-bottom: 1px solid #dee2e6;
}
.header h1 {
    color: #28a745;
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 0.5rem;
}
.header h2 {
    color: #dc3545;
    font-size: 1.5rem;
    text-align: center;
    margin-top: 0;
}
.navbar {
    background-color: #28a745 !important;
}
.navbar-nav .nav-link {
    color: #fff !important;
    padding: 0.5rem 1rem;
}
.navbar-nav .nav-link:hover {
    color: #f8f9fa !important;
}
.admin-login {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}
.registration-section {
    padding: 40px 20px;
    text-align: center;
}
.registration-section h3 {
    color: #212529;
    font-size: 1.75rem;
    margin-bottom: 10px;
}
.registration-section p {
    color: #212529;
    margin-bottom: 30px;
}
.user-card {
    background: #fff;
    border-radius: 10px;
    padding: 30px 20px;
    margin: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s;
    cursor: pointer;
}
.user-card:hover {
    transform: translateY(-5px);
}
.user-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.student-icon {
    background-color: #138496;
}
.staff-icon {
    background-color: #dc3545;
}
.parent-icon {
    background-color: #17a2b8;
}
.user-icon img {
    width: 60px;
    height: 60px;
}
.btn-register {
    width: 120px;
    border-radius: 5px;
    font-weight: bold;
    padding: 8px 16px;
}
.btn-student {
    background-color: #28a745;
    color: white;
    border: none;
}
.btn-staff {
    background-color: #dc3545;
    color: white;
    border: none;
}
.btn-parent {
    background-color: #007bff;
    color: white;
    border: none;
}
.footer {
    background-color: #28a745;
    color: white;
    padding: 15px 0;
    text-align: center;
    position: fixed;
    bottom: 0;
    width: 100%;
}
@media (max-width: 768px) {
    .admin-login {
        position: static;
        transform: none;
        margin-top: 10px;
        text-align: center;
    }
    .navbar-nav {
        text-align: center;
    }
    .header h1 {
        font-size: 1.5rem;
    }
    .header h2 {
        font-size: 1.2rem;
    }
}