/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Navbar styles */
.navbar {
    background-color: #2c3e50;
    padding: 1rem 2rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.logo {
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-links a:hover, .nav-links a.active {
    background-color: #3498db;
    color: white;
}

/* Hero section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1507842217343-583bb7270b66?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    padding: 0 1rem;
    margin-top: 0;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

/* Features section */
.features {
    padding: 5rem 2rem;
    background-color: white;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
    font-size: 2.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card i {
    font-size: 3rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

/* Books section */
.page-header {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1507842217343-583bb7270b66?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 8rem 2rem 4rem;
    margin-bottom: 3rem;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.books-section {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.department {
    margin-bottom: 4rem;
}

.department h2 {
    color: #2c3e50;
    margin-bottom: 2rem;
    text-align: center;
    font-size: 2rem;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.book-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.book-card:hover {
    transform: translateY(-5px);
}

.book-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.book-card h4 {
    padding: 1rem;
    color: #2c3e50;
    font-size: 1.2rem;
}

.book-card p {
    padding: 0 1rem;
    color: #666;
}

.book-details {
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #eee;
}

.availability {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.available {
    background-color: #2ecc71;
    color: white;
}

.unavailable {
    background-color: #e74c3c;
    color: white;
}

.borrow-btn {
    padding: 0.5rem 1rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.borrow-btn:hover:not([disabled]) {
    background-color: #2980b9;
}

.borrow-btn[disabled] {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

/* Testimonials section */
.testimonials {
    padding: 5rem 2rem;
    background-color: #f8f9fa;
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
    font-size: 2.5rem;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.testimonial-card i {
    color: #3498db;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.testimonial-author {
    margin-top: 1rem;
    color: #666;
    font-style: italic;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 4rem 2rem 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #3498db;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #3498db;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-form input {
    padding: 0.5rem;
    border: none;
    border-radius: 4px;
    flex: 1;
}

.newsletter-form button {
    padding: 0.5rem 1rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.newsletter-form button:hover {
    background-color: #2980b9;
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive design */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 1rem;
    }

    .nav-links {
        margin-top: 1rem;
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .features-grid,
    .book-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .newsletter-form {
        flex-direction: column;
    }
}

/* Feedback section */
.feedback-section {
    padding: 4rem 2rem;
    background-color: #f8f9fa;
}

.feedback-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.feedback-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: #2c3e50;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* Rating system */
.rating {
    display: flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
    gap: 0.5rem;
}

.rating input {
    display: none;
}

.rating label {
    cursor: pointer;
    font-size: 1.5rem;
    color: #ddd;
    transition: color 0.3s ease;
}

.rating label:hover,
.rating label:hover ~ label,
.rating input:checked ~ label {
    color: #f1c40f;
}

.submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.submit-btn i {
    font-size: 1.2rem;
}

/* About section */
.about-section {
    padding: 4rem 2rem;
    background-color: #f8f9fa;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
}

.about-content {
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-bottom: 3rem;
}

.about-content h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.about-content p {
    margin-bottom: 2rem;
    line-height: 1.8;
    color: #666;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card i {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.stat-card h3 {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: #666;
}

/* Team section */
.team-section {
    padding: 4rem 2rem;
    background-color: white;
}

.team-section h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.team-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.team-card:hover {
    transform: translateY(-5px);
}

.team-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.team-card h3 {
    color: #2c3e50;
    margin: 1rem 0 0.5rem;
    font-size: 1.3rem;
}

.team-card p {
    color: #666;
    margin-bottom: 1rem;
}

.team-card .social-links {
    padding: 1rem;
    background-color: #f8f9fa;
}

.team-card .social-links a {
    color: #2c3e50;
    font-size: 1.2rem;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.team-card .social-links a:hover {
    color: #3498db;
}

/* Values section */
.values-section {
    padding: 4rem 2rem;
    background-color: #f8f9fa;
}

.values-section h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.value-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.value-card:hover {
    transform: translateY(-5px);
}

.value-card i {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.value-card h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.value-card p {
    color: #666;
    line-height: 1.6;
}

/* Contact Page Styles */
.contact-section {
    padding: 4rem 2rem;
    background-color: #f8f9fa;
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.info-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
}

.info-card i {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.info-card h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.info-card p {
    color: #666;
    margin: 0.5rem 0;
}

.contact-form-container {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.contact-form-container h2 {
    color: #2c3e50;
    margin-bottom: 2rem;
    text-align: center;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.contact-form label {
    color: #2c3e50;
    font-weight: 500;
}

.contact-form input,
.contact-form textarea {
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #2c3e50;
    outline: none;
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.contact-form .submit-btn {
    background-color: #2c3e50;
    color: white;
    padding: 1rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.contact-form .submit-btn:hover {
    background-color: #34495e;
    transform: translateY(-2px);
}

.map-section {
    padding: 4rem 2rem;
    background-color: white;
}

.map-section h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 2rem;
}

.map-container {
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

/* Responsive Design for Contact Page */
@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .info-card {
        padding: 1.5rem;
    }
}