body {
        margin: 0;
        padding-top: 50px;
        padding-bottom: 60px;
        font-family: Arial, sans-serif;
    }

    nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        background-color: #333;       
        color: white;       
        padding: 10px;       
        text-align: center;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }

    nav ul {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        justify-content: center;
        gap: 30px;
    }
     
    nav a {       
        color: white;       
        text-decoration: none;     
        font-weight: bold;
        padding: 8px 16px;
        border-radius: 4px;
        transition: background-color 0.2s ease;
    }     
    nav a:hover {       
        background-color: #555;
    }
    
    h1 {
        text-align: center;
    }
    
    #section2 {
        text-align: center;
    }
    
    #section3 h2 {
        text-align: center;
    }
         
    main {       
        padding: 20px;   
        max-width: 1200px;
        margin: 0 auto;               
    }
    footer {       
        background-color: #333;       
        color: white;       
        text-align: center;       
        padding: 10px;       
        position: fixed;       
        bottom: 0;       
        width: 100%;     
    }

    /* Artwork Grid Styles */
    .artwork-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin: 20px 0;
    }

    .artwork-card {
        border: 1px solid #ddd;
        border-radius: 8px;
        padding: 15px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .artwork-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    }

    .artwork-card img {
        width: 100%;
        height: 200px;
        object-fit: cover;
        border-radius: 5px;
        margin-bottom: 10px;
    }

    .artwork-title {
        font-weight: bold;
        font-size: 16px;
        margin-bottom: 5px;
        line-height: 1.3;
    }

    .artwork-artist {
        color: #666;
        font-size: 14px;
        margin-bottom: 5px;
    }

    /* Search Form Styles */
    .search-form {
        display: flex;
        gap: 10px;
        margin: 20px auto;
        max-width: 600px;
    }

    #search-input {
        flex: 1;
        padding: 12px;
        border: 2px solid #ddd;
        border-radius: 6px;
        font-size: 16px;
        outline: none;
        transition: border-color 0.2s ease;
    }

    #search-input:focus {
        border-color: #007bff;
    }

    #search-btn {
        padding: 12px 24px;
        background-color: #007bff;
        color: white;
        border: none;
        border-radius: 6px;
        cursor: pointer;
        font-size: 16px;
        font-weight: bold;
        transition: background-color 0.2s ease;
    }

    #search-btn:hover {
        background-color: #0056b3;
    }

    #no-results {
        display: none;
        text-align: center;
        color: #666;
        font-style: italic;
        margin: 20px 0;
    }

    /* Random Artwork Styles */
    .single-artwork {
        max-width: 600px;
        margin: 20px auto;
        padding: 20px;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
        border-radius: 8px;
        background: white;
    }

    .single-artwork img {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
        margin-bottom: 15px;
    }

    .artwork-details {
        text-align: left;
    }

    .artwork-details h3 {
        margin: 0 0 10px 0;
        color: #333;
    }

    .artwork-details p {
        margin: 5px 0;
        line-height: 1.5;
    }

    .artwork-details .artist {
        font-weight: bold;
        color: #555;
    }

    .artwork-details .date {
        color: #777;
        font-style: italic;
    }

    .artwork-details .description {
        margin-top: 15px;
        color: #444;
    }

    #random-btn {
        display: block;
        margin: 20px auto;
        padding: 15px 30px;
        background-color: #28a745;
        color: white;
        border: none;
        border-radius: 8px;
        cursor: pointer;
        font-size: 18px;
        font-weight: bold;
        transition: background-color 0.2s ease;
    }

    #random-btn:hover {
        background-color: #218838;
    }

    /* Loading States */
    #loading-featured {
        text-align: center;
        color: #666;
        font-style: italic;
    }

    /* Portfolio Link Section */
    #portfolio-link {
        text-align: center;
        padding: 40px 20px;
        background-color: #f9f9f9;
    }

    .portfolio-btn {
        display: inline-block;
        padding: 15px 30px;
        background-color: #007cba;
        color: white;
        text-decoration: none;
        border-radius: 5px;
        font-weight: bold;
        font-size: 16px;
        transition: background-color 0.3s ease;
    }

    .portfolio-btn:hover {
        background-color: #005a87;
        transform: translateY(-2px);
    }

    /* Portfolio Section Styles */
    #portfolio-section {
        text-align: center;
        padding: 40px 20px;
        margin-top: 40px;
    }

    #portfolio-button {
        background-color: #007cba;
        color: white;
        padding: 15px 30px;
        font-size: 18px;
        font-weight: bold;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.2s ease;
    }

    #portfolio-button:hover {
        background-color: #005a87;
        transform: translateY(-2px);
    }

/* ============================================
   RESPONSIVE DESIGN - MOBILE FIRST APPROACH
   Base styles are for mobile (< 576px)
   Maintaining sticky navigation from original
   ============================================ */

/* Ensure sticky nav is maintained on mobile */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: #333;
    color: white;
    padding: 10px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Maintain body padding for fixed nav */
body {
    margin: 0;
    padding-top: 50px; /* Account for fixed nav height */
    padding-bottom: 60px;
    font-family: Arial, sans-serif;
}

/* Ensure mobile-first base styles */
.artwork-grid {
    grid-template-columns: 1fr; /* Single column on mobile */
}

.search-form {
    flex-direction: column; /* Stack search elements vertically on mobile */
}

#search-input, #search-btn {
    width: 100%; /* Full width on mobile */
}

/* Mobile-specific nav adjustments */
nav ul {
    flex-direction: column; /* Stack nav items on smallest screens */
    gap: 10px;
}

.single-artwork {
    padding: 15px; /* Reduce padding on mobile */
    margin: 10px; /* Add small margin on mobile */
}

/* ============================================
   Small devices (landscape phones, 576px and up)
   ============================================ */
@media (min-width: 576px) {
    /* Navigation - maintain sticky with horizontal layout */
    nav {
        position: fixed; /* Ensure sticky */
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        padding: 10px;
    }
    
    /* Adjust body padding if needed */
    body {
        padding-top: 50px; /* Maintain space for fixed nav */
    }
    
    /* Navigation improvements */
    nav ul {
        flex-direction: row; /* Horizontal nav on larger screens */
        gap: 20px;
    }
    
    /* Artwork grid - 2 columns */
    .artwork-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    /* Search form - side by side */
    .search-form {
        flex-direction: row;
        max-width: 500px;
    }
    
    #search-input {
        flex: 1;
        width: auto;
    }
    
    #search-btn {
        width: auto;
        min-width: 100px;
    }
    
    /* Single artwork container */
    .single-artwork {
        padding: 20px;
        margin: 15px auto;
        max-width: 540px;
    }
    
    /* Main content area */
    main {
        padding: 20px;
    }
    
    /* Buttons */
    #random-btn, #portfolio-button {
        padding: 12px 25px;
        font-size: 16px;
    }
}

/* ============================================
   Medium devices (tablets, 768px and up)
   ============================================ */
@media (min-width: 768px) {
    /* Navigation - maintain sticky with more padding */
    nav {
        position: fixed; /* Ensure sticky */
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        padding: 12px;
    }
    
    /* Adjust body padding for potentially taller nav */
    body {
        padding-top: 55px; /* Slightly more space for larger nav */
    }
    
    /* Navigation */
    nav ul {
        gap: 30px;
    }
    
    nav a {
        padding: 10px 20px;
    }
    
    /* Artwork grid - 3 columns */
    .artwork-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    /* Artwork cards */
    .artwork-card {
        padding: 18px;
    }
    
    .artwork-card img {
        height: 220px;
    }
    
    /* Search form */
    .search-form {
        max-width: 600px;
        gap: 12px;
    }
    
    #search-input {
        padding: 14px;
        font-size: 16px;
    }
    
    #search-btn {
        padding: 14px 28px;
        font-size: 16px;
    }
    
    /* Single artwork */
    .single-artwork {
        max-width: 650px;
        padding: 25px;
        margin: 20px auto;
    }
    
    /* Random button */
    #random-btn {
        padding: 15px 30px;
        font-size: 17px;
    }
    
    /* Main content */
    main {
        padding: 30px;
    }
    
    /* Headers */
    h1 {
        font-size: 2em;
        margin: 30px 0;
    }
    
    h2 {
        font-size: 1.6em;
        margin: 25px 0;
    }
}

/* ============================================
   Large devices (desktops, 1024px and up)
   ============================================ */
@media (min-width: 1024px) {
    /* Navigation - maintain sticky with desktop styling */
    nav {
        position: fixed; /* Ensure sticky */
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        padding: 15px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15); /* Enhanced shadow for desktop */
    }
    
    /* Adjust body padding for larger nav */
    body {
        padding-top: 60px; /* More space for larger desktop nav */
    }
    
    /* Navigation */
    nav ul {
        gap: 40px;
    }
    
    nav a {
        padding: 12px 24px;
        font-size: 16px;
    }
    
    /* Artwork grid - 4 columns */
    .artwork-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 25px;
    }
    
    /* Artwork cards */
    .artwork-card {
        padding: 20px;
    }
    
    .artwork-card img {
        height: 250px;
    }
    
    .artwork-title {
        font-size: 17px;
    }
    
    .artwork-artist {
        font-size: 15px;
    }
    
    /* Search form */
    .search-form {
        max-width: 700px;
        gap: 15px;
    }
    
    #search-input {
        padding: 15px;
        font-size: 17px;
    }
    
    #search-btn {
        padding: 15px 35px;
        font-size: 17px;
    }
    
    /* Single artwork */
    .single-artwork {
        max-width: 750px;
        padding: 30px;
        margin: 25px auto;
    }
    
    /* Random button */
    #random-btn {
        padding: 18px 35px;
        font-size: 18px;
    }
    
    /* Portfolio button */
    #portfolio-button {
        padding: 18px 35px;
        font-size: 19px;
    }
    
    /* Main content */
    main {
        padding: 40px;
        max-width: 1200px;
    }
    
    /* Section spacing */
    section {
        margin-bottom: 60px;
    }
}

/* ============================================
   Extra large devices (large desktops, 1440px and up)
   ============================================ */
@media (min-width: 1440px) {
    /* Navigation - maintain sticky with luxury spacing */
    nav {
        position: fixed; /* Ensure sticky */
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        padding: 18px;
        box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
    }
    
    /* Adjust body padding for larger nav */
    body {
        padding-top: 65px; /* Account for larger nav height */
    }
    
    /* Navigation */
    nav ul {
        gap: 50px;
    }
    
    nav a {
        padding: 12px 28px;
        font-size: 17px;
    }
    
    /* Main container */
    main {
        max-width: 1400px;
        padding: 50px;
    }
    
    /* Artwork grid - 5 columns for extra large screens */
    .artwork-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 30px;
    }
    
    /* Artwork cards */
    .artwork-card {
        padding: 22px;
    }
    
    .artwork-card img {
        height: 280px;
    }
    
    /* Search form */
    .search-form {
        max-width: 800px;
        gap: 20px;
    }
    
    #search-input {
        padding: 16px 20px;
        font-size: 18px;
    }
    
    #search-btn {
        padding: 16px 40px;
        font-size: 18px;
    }
    
    /* Single artwork */
    .single-artwork {
        max-width: 900px;
        padding: 40px;
        margin: 30px auto;
    }
    
    .single-artwork img {
        max-height: 600px;
        width: auto;
        margin: 0 auto 20px;
        display: block;
    }
    
    /* Buttons */
    #random-btn, #portfolio-button {
        padding: 20px 45px;
        font-size: 20px;
    }
    
    /* Typography */
    h1 {
        font-size: 2.5em;
        margin: 40px 0;
    }
    
    h2 {
        font-size: 2em;
        margin: 35px 0;
    }
    
    /* Section spacing */
    section {
        margin-bottom: 80px;
    }
    
    /* Footer - ensure it stays at bottom */
    footer {
        padding: 15px;
        font-size: 16px;
    }
}

/* ============================================
   Additional Responsive Utilities
   ============================================ */

/* Ensure sections have padding to account for fixed nav when scrolling */
section {
    scroll-margin-top: 60px; /* Offset for fixed nav */
}

/* Ensure images are responsive */
img {
    max-width: 100%;
    height: auto;
}

/* Prevent horizontal scroll on small devices */
* {
    box-sizing: border-box;
}

/* Smooth scrolling for all devices */
html {
    scroll-behavior: smooth;
}

/* Touch-friendly tap targets */
@media (hover: none) and (pointer: coarse) {
    button, a {
        min-height: 44px;
        min-width: 44px;
    }
}

/* Adjust scroll offset for different screen sizes */
@media (min-width: 768px) {
    section {
        scroll-margin-top: 65px;
    }
}

@media (min-width: 1024px) {
    section {
        scroll-margin-top: 70px;
    }
}

@media (min-width: 1440px) {
    section {
        scroll-margin-top: 75px;
    }
}

/* Print styles (bonus) */
@media print {
    nav, footer, #portfolio-section {
        display: none;
    }
    
    .artwork-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}