/* ArtForge - Modern Artistic Theme */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Vibrant Artistic Color Palette */
    --primary-purple: #8B5CF6;
    --primary-pink: #EC4899;
    --primary-orange: #F59E0B;
    --primary-cyan: #06B6D4;
    --primary-green: #10B981;
    
    --bg-dark: #0F172A;
    --bg-medium: #1E293B;
    --bg-light: #F8FAFC;
    --text-dark: #0F172A;
    --text-light: #F8FAFC;
    --text-gray: #64748B;
    
    --gradient-1: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
    --gradient-2: linear-gradient(135deg, #F59E0B 0%, #EC4899 100%);
    --gradient-3: linear-gradient(135deg, #06B6D4 0%, #8B5CF6 100%);
    --gradient-4: linear-gradient(135deg, #10B981 0%, #06B6D4 100%);
    
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
}

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

/* Navigation */
.navbar {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 1.25rem 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    font-family: 'Playfair Display', serif;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
}

.nav-links a:hover {
    background: rgba(139, 92, 246, 0.2);
    transform: translateY(-2px);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

/* Hero Section */
.hero {
    background: var(--gradient-1);
    color: var(--text-light);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.btn-primary {
    background: white;
    color: var(--primary-purple);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-purple);
    transform: translateY(-3px);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.3rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    padding: 2.5rem;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:nth-child(1) { border-top: 4px solid var(--primary-purple); }
.feature-card:nth-child(2) { border-top: 4px solid var(--primary-pink); }
.feature-card:nth-child(3) { border-top: 4px solid var(--primary-orange); }
.feature-card:nth-child(4) { border-top: 4px solid var(--primary-cyan); }
.feature-card:nth-child(5) { border-top: 4px solid var(--primary-green); }
.feature-card:nth-child(6) { border-top: 4px solid var(--primary-purple); }

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.8;
    font-size: 1.05rem;
}

/* CTA Section */
.cta {
    padding: 5rem 0;
    text-align: center;
    background: var(--gradient-3);
    color: white;
}

.cta h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: white;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* Gallery Grid */
.browse-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

.browse-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'Playfair Display', serif;
}

.browse-subtitle {
    font-size: 1.3rem;
    color: var(--text-gray);
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 3px solid var(--primary-purple);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.artwork-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
}

.artwork-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.artwork-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background: var(--gradient-2);
}

.artwork-info {
    padding: 1.5rem;
}

.artwork-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.artwork-info h3 a {
    color: var(--text-dark);
    text-decoration: none;
}

.artwork-info h3 a:hover {
    color: var(--primary-purple);
}

.artwork-artist {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.artwork-artist a {
    color: var(--primary-purple);
    text-decoration: none;
    font-weight: 500;
}

.artwork-artist a:hover {
    text-decoration: underline;
}

.artwork-description {
    color: var(--text-gray);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.artwork-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-gray);
}

/* Artwork Detail Page */
.artwork-detail {
    max-width: 1000px;
    margin: 0 auto;
}

.artwork-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
}

.artwork-title-section {
    flex: 1;
}

.artwork-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.artwork-byline {
    display: flex;
    gap: 1rem;
    align-items: center;
    color: var(--text-gray);
    font-size: 1.1rem;
    flex-wrap: wrap;
}

.btn-view-gallery {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: white;
    border: 2px solid var(--primary-purple);
    border-radius: 8px;
    color: var(--primary-purple);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-view-gallery:hover {
    background: var(--primary-purple);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-view-gallery svg {
    flex-shrink: 0;
}

/* Gallery Container */
.gallery-container {
    margin-bottom: 2rem;
}

.gallery-main {
    position: relative;
    margin-bottom: 1.5rem;
    background: white;
    border-radius: 16px;
    padding: 1rem;
    box-shadow: var(--shadow-xl);
}

.gallery-main-image {
    width: 100%;
    max-height: 600px;
    object-fit: contain;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s ease, opacity 0.15s ease;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    will-change: opacity;
}

.gallery-main-image:hover {
    transform: scale(1.01);
}

/* Gallery Navigation Buttons */
.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    color: var(--primary-purple);
    z-index: 10;
}

.gallery-nav:hover {
    background: var(--primary-purple);
    color: white;
    transform: translateY(-50%) scale(1.1);
}

.gallery-prev {
    left: 1rem;
}

.gallery-next {
    right: 1rem;
}

/* Gallery Counter */
.gallery-counter {
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Gallery Thumbnails */
.gallery-thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.75rem;
    padding: 0.5rem;
}

.thumbnail-wrapper {
    position: relative;
}

.gallery-thumbnail {
    width: 100%;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 3px solid transparent;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
}

.gallery-thumbnail:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.gallery-thumbnail.active {
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 2px var(--primary-purple);
}

.thumbnail-delete {
    position: absolute;
    top: 4px;
    right: 4px;
    background: rgba(239, 68, 68, 0.95);
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s ease;
    color: white;
    z-index: 10;
}

.thumbnail-wrapper:hover .thumbnail-delete {
    opacity: 1;
}

.thumbnail-delete:hover {
    background: rgba(220, 38, 38, 1);
    transform: scale(1.1);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 95%;
    max-height: 95%;
    object-fit: contain;
    cursor: default;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    transition: opacity 0.15s ease;
    will-change: opacity;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 48px;
    font-weight: 300;
    cursor: pointer;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    line-height: 1;
    padding: 0;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    z-index: 10000;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: 30px;
}

.lightbox-next {
    right: 30px;
}

/* Spark Section */
.spark-section {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
}

.spark-button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: white;
    border: 2px solid var(--primary-purple);
    border-radius: 50px;
    color: var(--primary-purple);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.spark-button:hover {
    background: var(--primary-purple);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.spark-button.sparked {
    background: var(--gradient-1);
    border-color: var(--primary-purple);
    color: white;
}

.spark-button.sparked:hover {
    transform: translateY(-2px) scale(1.05);
}

.spark-button svg {
    transition: all 0.3s ease;
}

.spark-button:hover svg {
    transform: rotate(15deg);
}

/* Comments Section */
.comments-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid #E5E7EB;
}

.comments-section h2 {
    color: var(--text-dark);
    margin-bottom: 2rem;
    font-family: 'Playfair Display', serif;
}

.comment-form-container {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.comment-form-container h3 {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.comment-form .form-group {
    margin-bottom: 1.5rem;
}

.comment-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.comment-form input,
.comment-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #E5E7EB;
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: border-color 0.3s ease;
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--primary-purple);
}

.comment-form textarea {
    resize: vertical;
    min-height: 100px;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comment {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-purple);
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.comment-header strong {
    color: var(--primary-purple);
    font-size: 1.1rem;
}

.comment-date {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.comment-content {
    color: var(--text-dark);
    line-height: 1.6;
    white-space: pre-wrap;
}

.btn-delete-comment {
    background: none;
    border: none;
    color: #EF4444;
    font-size: 0.9rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    transition: color 0.3s ease;
}

.btn-delete-comment:hover {
    color: #DC2626;
    text-decoration: underline;
}

.no-comments {
    text-align: center;
    color: var(--text-gray);
    padding: 3rem 2rem;
    font-style: italic;
}

/* Disable right-click on images */
img {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 200px);
    padding: 3rem 0;
}

.auth-card {
    background: white;
    padding: 3.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    border-top: 5px solid var(--primary-purple);
}

.auth-card h1 {
    text-align: center;
    margin-bottom: 2.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-group {
    margin-bottom: 1.75rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #E2E8F0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.auth-link {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-gray);
}

.auth-link a {
    color: var(--primary-purple);
    text-decoration: none;
    font-weight: 600;
}

.auth-link a:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 2.5rem 0;
    text-align: center;
    margin-top: 4rem;
}

.footer a {
    color: var(--primary-purple);
    text-decoration: none;
    font-weight: 600;
}

.footer a:hover {
    color: var(--primary-pink);
}

/* Upload Page */
.upload-container {
    max-width: 800px;
    margin: 0 auto;
}

.upload-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.file-upload-area {
    border: 3px dashed var(--primary-purple);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    background: rgba(139, 92, 246, 0.05);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.file-upload-area:hover {
    background: rgba(139, 92, 246, 0.1);
    border-color: var(--primary-pink);
}

.file-upload-area input[type="file"] {
    display: none;
}

.upload-label {
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--primary-purple);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .features h2,
    .cta h2 {
        font-size: 2rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    /* Mobile gallery adjustments */
    .gallery-main-image {
        max-height: 400px;
    }

    .gallery-nav {
        width: 40px;
        height: 40px;
    }

    .gallery-prev {
        left: 0.5rem;
    }

    .gallery-next {
        right: 0.5rem;
    }

    .gallery-counter {
        bottom: 1rem;
        right: 1rem;
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .gallery-thumbnails {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 0.5rem;
    }

    .gallery-thumbnail {
        height: 80px;
    }

    /* Make delete button always visible on mobile */
    .thumbnail-delete {
        opacity: 1;
    }

    .lightbox-close {
        top: 10px;
        right: 10px;
        width: 50px;
        height: 50px;
        font-size: 36px;
    }

    .lightbox-nav {
        width: 50px;
        height: 50px;
    }

    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }

    /* Mobile spark and comments */
    .spark-button {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }

    .comment-form-container {
        padding: 1.5rem;
    }

    .comment {
        padding: 1rem;
    }

    .comment-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    /* Mobile artwork header */
    .artwork-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .artwork-header h1 {
        font-size: 2rem;
    }

    .artwork-byline {
        font-size: 0.95rem;
    }
}