/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #F5E6D3;
}

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

/* Color Palette */
:root {
    --primary-color: #D2691E;
    --secondary-color: #8B4513;
    --accent-color: #87A96B;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --error-color: #dc3545;
    --light-bg: #F5E6D3;
    --white: #FFFFFF;
    --gray-light: #f8f9fa;
    --gray-medium: #6c757d;
    --gray-dark: #343a40;
}

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
}

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

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

.nav-link:hover,
.nav-link.active {
    background: var(--primary-color);
    color: var(--white);
}

.btn-logout {
    background: var(--error-color);
    color: var(--white);
    border: none;
    cursor: pointer;
}

.btn-logout:hover {
    background: #c82333;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: #B8561A;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--accent-color);
    color: var(--white);
}

.btn-secondary:hover {
    background: #758a5e;
}

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

.btn-success:hover {
    background: #218838;
}

/* Filters */
.filters {
    padding: 2rem 0;
    background: var(--white);
    margin: 2rem 0;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.filters h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.filter-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-controls select,
.filter-controls input {
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    min-width: 200px;
}

.filter-controls select:focus,
.filter-controls input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

.card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
}

.card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.card p {
    color: var(--gray-medium);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.artist-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--gray-dark);
}

.verified-badge {
    color: var(--success-color);
    font-size: 0.9rem;
}

.export-ready-badge {
    background: var(--success-color);
    color: var(--white);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.card-actions {
    display: flex;
    gap: 0.5rem;
}

.card-actions button {
    flex: 1;
    padding: 0.5rem;
    border: none;
    background: var(--gray-light);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.card-actions button:hover {
    background: var(--accent-color);
    color: var(--white);
}

/* Authentication Forms */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 80px);
    padding: 2rem 0;
}

.auth-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 500px;
}

.auth-tabs {
    display: flex;
    margin-bottom: 2rem;
    background: var(--gray-light);
    border-radius: 8px;
    padding: 0.25rem;
}

.tab-btn {
    flex: 1;
    padding: 0.75rem;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.demo-credentials {
    background: #e7f3ff;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border: 1px solid #b3d9ff;
}

.demo-credentials p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-form h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--gray-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    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: var(--primary-color);
}

.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.85rem;
    color: var(--gray-medium);
}

/* Dashboard */
.dashboard-container {
    padding: 2rem 0;
}

.profile-section {
    margin-bottom: 3rem;
}

.profile-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.profile-info h1 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.profile-details {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.artform {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.location {
    color: var(--gray-medium);
    font-weight: 500;
}

.verified-badge {
    color: var(--success-color);
    font-weight: 600;
}

.profile-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--gray-medium);
    font-size: 0.9rem;
}

.upload-section {
    margin-bottom: 3rem;
}

.upload-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.upload-card h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2 {
    color: var(--secondary-color);
}

.admin-controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.artworks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

/* Export Center */
.export-container {
    padding: 2rem 0;
}

.export-header {
    text-align: center;
    margin-bottom: 3rem;
}

.export-header h1 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

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

.artwork-selection {
    margin-bottom: 2rem;
}

.export-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
}

.export-card h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.export-card select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
}

.checklist-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.checklist-section h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.checkbox-label:hover {
    background: var(--gray-light);
}

.checkbox-label.mandatory {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 0.75rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.details-form {
    border-top: 1px solid #e9ecef;
    padding-top: 2rem;
    margin-top: 2rem;
}

.details-form h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.score-display {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    background: var(--gray-light);
    border-radius: 12px;
    margin: 2rem 0;
    justify-content: center;
}

.score-circle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--white);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.score-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.score-label {
    font-size: 1rem;
    color: var(--gray-medium);
}

.score-status {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gray-dark);
}

.score-status.passed {
    color: var(--success-color);
}

.score-status.failed {
    color: var(--error-color);
}

.export-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Modal */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-medium);
}

.close:hover {
    color: var(--gray-dark);
}

.modal-content h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.modal-content textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    resize: vertical;
    min-height: 100px;
    margin-bottom: 1rem;
}

/* Messages */
.message {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    color: var(--white);
    font-weight: 600;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    animation: slideIn 0.3s ease;
}

.message.success {
    background: var(--success-color);
}

.message.error {
    background: var(--error-color);
}

.message.info {
    background: var(--primary-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .nav-container {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .filter-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-controls select,
    .filter-controls input {
        min-width: 250px;
    }
    
    .gallery {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .checklist-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .admin-controls {
        width: 100%;
        justify-content: flex-start;
    }
    
    .export-actions {
        flex-direction: column;
    }
    
    .score-display {
        flex-direction: column;
        text-align: center;
    }
    
    .artworks-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .auth-card {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .profile-card,
    .upload-card,
    .export-card {
        padding: 1.5rem;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}