:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --background: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --radius: 1rem;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    background-color: var(--background);
    color: var(--text-primary);
}

.container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: minmax(400px, 1fr) minmax(500px, 1fr);
    gap: 2rem;
    align-items: start;
}

.input-section, 
.preview-section > div, 
.tracking-link-section,
.compliance-status-section,
.sheet-save-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.header-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.header-nav h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
}

input, select, textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    background-color: var(--card-bg);
    color: var(--text-primary);
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    outline: none;
}

textarea {
    height: 120px;
    resize: vertical;
}

.generate-btn, .nav-button {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.generate-btn {
    width: 100%;
}

.generate-btn:hover, .nav-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.console-section {
    margin-top: 2rem;
}

.console-section h3 {
    background: #1a1a1a;
    color: #fff;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.console-output {
    background: #1a1a1a;
    border-radius: 0.5rem;
    padding: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    height: 200px;
    overflow-y: auto;
    color: #10b981;
    border: 1px solid var(--border-color);
}

.console-error { color: #ef4444; }
.console-warning { color: #f59e0b; }
.console-success { color: #10b981; }

/* Ad Preview Styles */
.preview-section {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.preview-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.fb-ad-preview {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.ad-image-container {
    width: 100%;
    height: 400px;
    background: #363636;
    position: relative;
}

.ad-image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.ad-content {
    padding: 1.5rem;
}

.ad-headline {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.ad-primary-text {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.ad-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.ad-cta {
    background-color: var(--primary-color);
    color: white;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.875rem;
}

.ad-display-link {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.tracking-link-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.tracking-link-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.tracking-link {
    word-break: break-all;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
}

.tracking-link:hover {
    text-decoration: underline;
}

/* Gallery Styles */
.gallery-container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.gallery-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.gallery-item {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.gallery-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px -1px rgb(0 0 0 / 0.1);
}

.gallery-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.gallery-content {
    padding: 1.5rem;
}

.gallery-headline {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.gallery-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.gallery-link {
    font-size: 0.75rem;
    color: var(--primary-color);
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        grid-template-columns: 1fr;
        max-width: 800px;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 1rem;
        margin: 1rem auto;
    }

    .top-nav {
        padding: 1rem;
    }

    .nav-links {
        gap: 0.5rem;
    }

    .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
}

/* Add new style for image preview */
#previewImage {
    max-width: 200px;
    margin-top: 0.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.image-creation-container {
    grid-template-columns: 400px 1fr;
}

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

.image-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.image-card:hover {
    transform: translateY(-2px);
}

.generated-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.image-actions {
    padding: 1rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.image-button {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

.image-button:hover {
    background-color: var(--primary-hover);
}

.loading-overlay {
    position: relative;
}

.loading-overlay::after {
    content: "Generating...";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    font-weight: 500;
}

.image-input-group {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.compliance-status-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-top: 1rem;
}

.compliance-check-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    margin-top: 1rem;
}

.compliance-check-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3);
}

.compliance-indicator {
    padding: 0.75rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    text-align: center;
    font-weight: 500;
}

.compliance-indicator.checking {
    background-color: #f3f4f6;
    color: #4b5563;
    animation: pulse 1.5s infinite;
}

.compliance-indicator.compliant {
    background-color: #e6f4ea;
    color: #137333;
}

.compliance-indicator.non-compliant {
    background-color: #fce8e6;
    color: #c5221f;
}

.compliance-result {
    margin-top: 1rem;
}

.compliance-success {
    background-color: #e6f4ea;
    color: #137333;
    padding: 1rem;
    border-radius: var(--radius);
    margin-top: 0.5rem;
}

.compliance-failure {
    background-color: #fce8e6;
    color: #c5221f;
    padding: 1rem;
    border-radius: var(--radius);
    margin-top: 0.5rem;
}

.compliance-failure ul {
    margin-top: 0.5rem;
    margin-bottom: 0;
    padding-left: 1.5rem;
}

.compliance-failure li {
    margin-bottom: 0.25rem;
}

.sheet-save-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-top: 1rem;
}

.save-sheet-btn {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.save-sheet-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(16, 185, 129, 0.3);
}

.sheet-save-status {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    text-align: center;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}

.gallery-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.gallery-header .save-sheet-btn {
    width: auto;
    margin-right: 1rem;
}

.top-nav {
    background: var(--card-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-container h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

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

.nav-link {
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover {
    background: var(--background);
}

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

.download-all-btn {
    background-color: #10b981;
    color: white;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

.download-all-btn:hover {
    background-color: #059669;
}

/* Add modern styling for buttons */
.generate-btn, .nav-button, .save-sheet-btn, .image-button, .download-all-btn {
    background: linear-gradient(to right, var(--primary-color), var(--primary-hover));
    color: white;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.generate-btn:hover, .nav-button:hover, .save-sheet-btn:hover, 
.image-button:hover, .download-all-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3);
}

/* Modern card styling */
.input-section, .preview-section > div, .image-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.input-section:hover, .preview-section > div:hover, .image-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.1);
}

/* Modern form inputs */
input, select, textarea {
    border-radius: var(--radius);
    border: 2px solid var(--border-color);
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Modern navigation */
.top-nav {
    background: var(--card-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.nav-link {
    position: relative;
    overflow: hidden;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    background: linear-gradient(to right, var(--primary-color), var(--primary-hover));
}

/* Modern console */
.console-output {
    background: #1e1e1e;
    border-radius: var(--radius);
    font-family: 'JetBrains Mono', monospace;
    padding: 1rem;
}

/* Modern loading state */
.loading-overlay::after {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    border-radius: var(--radius);
}

/* Modern image grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* Top Navigation */
.top-nav {
    background: var(--card-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-container h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
}

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

.nav-link {
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover {
    background: var(--background);
}

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

/* Buttons */
.generate-btn,
.nav-button,
.save-sheet-btn,
.image-button,
.download-all-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    text-decoration: none;
    background: var(--primary-color);
    color: white;
}

.generate-btn {
    width: 100%;
    background: linear-gradient(to right, var(--primary-color), var(--primary-hover));
}

.nav-button {
    background: var(--background);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.save-sheet-btn {
    background: #10b981;
}

.download-all-btn {
    background: #6366f1;
}

.generate-btn:hover,
.nav-button:hover,
.save-sheet-btn:hover,
.image-button:hover,
.download-all-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.nav-button:hover {
    background: var(--background);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.save-sheet-btn:hover {
    background: #059669;
}

.download-all-btn:hover {
    background: #4f46e5;
}

/* Header Navigation */
.header-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.header-nav h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Gallery Actions */
.gallery-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .top-nav {
        padding: 1rem;
    }

    .nav-container h1 {
        font-size: 1.25rem;
    }

    .nav-links {
        gap: 0.5rem;
    }

    .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }

    .header-nav {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .gallery-actions {
        flex-direction: column;
        width: 100%;
    }

    .gallery-actions .nav-button,
    .gallery-actions .save-sheet-btn {
        width: 100%;
    }
}

/* Top Navigation - Add this at the top of your styles.css */
.top-nav {
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-container h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
}

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

.nav-link {
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover {
    background: var(--background);
}

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

.compliance-check-btn {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background-color: #4285f4;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.compliance-check-btn:hover {
    background-color: #3367d6;
}

.compliance-results {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 4px;
}

.compliance-success {
    background-color: #e6f4ea;
    color: #137333;
    padding: 1rem;
    border-radius: 4px;
}

.compliance-failure {
    background-color: #fce8e6;
    color: #c5221f;
    padding: 1rem;
    border-radius: 4px;
}

.compliance-failure ul {
    margin-top: 0.5rem;
    margin-bottom: 0;
}

.compliance-status-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-top: 1rem;
}

.compliance-check-btn {
    background: linear-gradient(135deg, #4f46e5, #3730a3);
    color: white;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.compliance-check-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3);
}

.compliance-result {
    margin-top: 1rem;
}

.compliance-success {
    background-color: #e6f4ea;
    color: #137333;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 0.5rem;
}

.compliance-failure {
    background-color: #fce8e6;
    color: #c5221f;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 0.5rem;
}

.compliance-failure ul {
    margin-top: 0.5rem;
    margin-bottom: 0;
    padding-left: 1.5rem;
}

.compliance-failure li {
    margin-bottom: 0.25rem;
}

/* Add these styles for the no-image ad preview */
.fb-ad-preview.no-image {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
}

.fb-ad-preview.no-image .ad-content {
    padding: 0;
}