body, html {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    color: white;
    height: 100%;
}

/* Dark blur background */
.background {
    background: url('images/school-bg.jpeg') no-repeat center center/cover;
    filter: brightness(0.6) blur(6px);
    height: 100%;
    position: fixed;
    width: 100%;
    z-index: -1;
    background-image: url('../images/school-bg.jpg');
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    padding: 15px 30px;
    align-items: center;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.navbar h1 {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #ffcc00;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-top: 10%;
    padding: 0 20px;
}

.hero img {
    width: 250px;
    margin-bottom: 15px;
}

.hero h2 {
    font-size: 2.5rem;
    margin: 10px 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1rem;
    max-width: 500px;
    margin: 0 auto 20px auto;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* Download Button - Centered below paragraph */
.download-btn {
    background-color: #ff0000;
    color: #000000;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    margin: 15px auto;
    transition: all 0.3s ease;
    display: block;
    width: fit-content;
    font-size: 1rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.download-btn:hover {
    background-color: #cc0000;
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0,0,0,0.4);
}

.download-btn:disabled {
    background-color: #888888;
    cursor: not-allowed;
    transform: none;
}

/* Button container for other buttons */
.btn-container {
    margin-top: 30px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Modified .btn style for dark background */
.btn {
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    font-weight: 500;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        background: rgba(0, 0, 0, 0.9);
        position: absolute;
        top: 60px;
        right: 0;
        padding: 20px;
        backdrop-filter: blur(10px);
    }
    .nav-links.active {
        display: flex;
    }
    .menu-toggle {
        display: block;
    }
    
    .hero {
        margin-top: 20%;
    }
    
    .btn-container {
        flex-direction: column;
        align-items: center;
    }
}