@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --text-color: #333;
    --card-bg: rgba(255, 255, 255, 0.9);
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    background-color: var(--background-color);
}

body {
    background-image: url('../upload/logo/hero-banner-guru.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.container {
    background: var(--card-bg);
    background-image: url('../upload/logo/background.png');
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    max-width: 600px;
    width: 90%;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo {
    max-width: 120px;
    margin-bottom: 1rem;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 2rem;
    color: var(--secondary-color);
}

.login-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 2rem;
}

.btn {
    text-decoration: none;
    color: #fff;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: none;
    cursor: pointer;
}

.btn-admin {
    background: linear-gradient(45deg, #007bff, #0056b3);
}

.btn-student {
    background: linear-gradient(45deg, #28a745, #218838);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

footer {
    margin-top: 2rem;
    font-size: 0.9rem;
    color: var(--secondary-color);
}

/* Responsive Design */
@media (min-width: 768px) {
    .login-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 2.5rem;
    }
    .container {
        padding: 30px;
    }
}