/* style.css */
:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --light-gray: #e9ecef;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #fff;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 15px 0;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.logo a {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--dark-color);
}

.logo-icon {
    font-size: 2.2rem;
    margin-right: 8px;
}

.logo-text {
    color: var(--primary-color);
}

.logo-tagline {
    font-size: 1rem;
    font-weight: normal;
    margin-left: 10px;
    color: var(--gray-color);
}

.search-form {
    display: flex;
    flex: 1;
    max-width: 600px;
    margin: 0 20px;
}

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.search-button {
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-button:hover {
    background-color: var(--secondary-color);
}

.main-nav a {
    margin-left: 20px;
    font-weight: 600;
    color: var(--dark-color);
    position: relative;
}

.main-nav a:hover {
    color: var(--primary-color);
}

.main-nav a.active {
    color: var(--primary-color);
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 60px 0 40px;
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.hero p {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-search {
    display: flex;
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero-search input {
    flex: 1;
    padding: 16px 24px;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-size: 1.1rem;
}

.hero-search button {
    padding: 16px 32px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.hero-search button:hover {
    background-color: var(--secondary-color);
}

.trending-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    max-width: 700px;
    margin: 0 auto;
}

.trending-tags a {
    background-color: var(--light-gray);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.trending-tags a:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Image Grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.image-card {
    display: block;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    background-color: white;
}

.image-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.image-container {
    position: relative;
    padding-top: 75%; /* 4:3 aspect ratio */
    overflow: hidden;
}

.image-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
object-fit: contain;
    transition: var(--transition);
}

.image-card:hover .image-container img {
    transform: scale(1.05);
}

.image-card h3 {
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark-color);
}

.image-meta {
    display: flex;
    justify-content: space-between;
    padding: 0 15px 15px;
    font-size: 0.85rem;
    color: var(--gray-color);
}

/* Featured Section */
.featured-images {
    margin-bottom: 60px;
}

.featured-images h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--light-gray);
    color: var(--dark-color);
}

/* How it Works */
.how-it-works {
    margin-bottom: 60px;
}

.how-it-works h2 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 40px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.step {
    text-align: center;
    padding: 30px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.step-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    border-radius: 50%;
    margin-bottom: 20px;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* Search Results */
.search-results-header {
    margin: 30px 0;
}

.search-results-header h1 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.search-results-header p {
    color: var(--gray-color);
    font-size: 1.1rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    margin: 40px 0;
    flex-wrap: wrap;
}

.pagination a {
    display: inline-block;
    padding: 10px 18px;
    margin: 0 5px;
    background-color: white;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    color: var(--dark-color);
    font-weight: 600;
    transition: var(--transition);
}

.pagination a:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination a.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 60px 20px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin: 40px 0;
}

.no-results img {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    opacity: 0.7;
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.no-results p {
    margin-bottom: 25px;
    color: var(--gray-color);
}

.button {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
}

.button:hover {
    background-color: var(--secondary-color);
    color: white;
}

/* Search Suggestions */
.search-suggestions {
    margin: 40px 0;
}

.search-suggestions h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tags a {
    padding: 8px 16px;
    background-color: var(--light-gray);
    border-radius: 20px;
    font-size: 0.95rem;
    color: var(--gray-color);
}

.tags a:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Image Detail */
.image-detail {
    margin: 30px 0 60px;
}

.detail-header {
    margin-bottom: 25px;
}

.detail-header h1 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.image-meta {
    display: flex;
    gap: 20px;
    font-size: 0.95rem;
    color: var(--gray-color);
}

.detail-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
    margin-bottom: 30px;
}

.image-preview {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    background-color: var(--light-gray);
}

.image-preview img {
    width: 100%;
    display: block;
}

.image-actions {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    align-self: start;
}

.download-button {
    display: block;
    width: 100%;
    padding: 14px;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    font-weight: 600;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    transition: var(--transition);
}

.download-button:hover {
    background-color: var(--secondary-color);
    color: white;
}

.image-info {
    background-color: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 40px;
}

.image-info h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.image-info p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.image-info a {
    background-color: var(--light-gray);
    padding: 4px 10px;
    border-radius: 4px;
    margin-right: 5px;
    display: inline-block;
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.image-info a:hover {
    background-color: var(--primary-color);
    color: white;
}

.related-images {
    margin: 60px 0 30px;
}

.related-images h2 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--light-gray);
}

/* About Page */
.about-section {
    margin: 30px 0 60px;
}

.about-section h1 {
    font-size: 2rem;
    margin-bottom: 30px;
}

.about-content section {
    margin-bottom: 40px;
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.about-content h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.about-content p {
    margin-bottom: 15px;
    line-height: 1.8;
}

/* Footer */
.footer {
    background-color: #f8f9fa;
    padding: 60px 0 30px;
    border-top: 1px solid #e9ecef;
    margin-top: 60px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.footer-section p {
    margin-bottom: 15px;
    color: var(--gray-color);
    line-height: 1.7;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--gray-color);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #e9ecef;
    font-size: 0.9rem;
    color: var(--gray-color);
    line-height: 1.8;
}

.copyright p {
    margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 900px) {
    .detail-content {
        grid-template-columns: 1fr;
    }
    
    .image-actions {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .logo {
        margin-bottom: 15px;
        text-align: center;
    }
    
    .search-form {
        margin: 0 0 15px;
        max-width: 100%;
    }
    
    .main-nav {
        display: flex;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-search {
        flex-direction: column;
    }
    
    .hero-search input {
        border-radius: var(--border-radius);
        margin-bottom: 10px;
    }
    
    .hero-search button {
        border-radius: var(--border-radius);
    }
    
    .search-form {
        flex-direction: column;
    }
    
    .search-input {
        border-radius: var(--border-radius);
        margin-bottom: 10px;
    }
    
    .search-button {
        border-radius: var(--border-radius);
    }
    
    .main-nav {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .main-nav a {
        margin: 0;
    }
}