:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #242424;
    --bg-hover: #2a2a2a;
    --border-color: #333333;
    --border-hover: #444444;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --accent-primary: #6366f1;
    --accent-primary-hover: #5558e3;
    --accent-secondary: #22c55e;
    --accent-danger: #ef4444;
    --accent-danger-hover: #dc2626;
    --accent-warning: #f59e0b;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --transition: 0.2s ease;
    
    /* Template page variables (aliases for compatibility) */
    --surface-1: #1a1a1a;
    --surface-2: #242424;
    --surface-3: #2a2a2a;
    --primary: #6366f1;
    --primary-hover: #5558e3;
    --primary-rgb: 99, 102, 241;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.mono {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    text-align: center;
    margin-bottom: 32px;
}

.header h1 {
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.header-icon {
    width: 36px;
    height: 36px;
    color: var(--accent-primary);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.flash-messages {
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.flash-message {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    animation: slideIn 0.3s ease;
    transition: opacity 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.flash-message svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.flash-message span {
    flex: 1;
}

.flash-success {
    border-color: var(--accent-secondary);
}

.flash-success svg {
    color: var(--accent-secondary);
}

.flash-error {
    border-color: var(--accent-danger);
}

.flash-error svg {
    color: var(--accent-danger);
}

.flash-info svg {
    color: var(--accent-primary);
}

.flash-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition);
}

.flash-close:hover {
    color: var(--text-primary);
}

.flash-close svg {
    width: 16px;
    height: 16px;
}

.main-content {
    flex: 1;
}

.upload-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.dropzone {
    width: 100%;
    max-width: 600px;
    min-height: 300px;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
}

.dropzone:hover {
    border-color: var(--accent-primary);
    background-color: var(--bg-tertiary);
}

.dropzone.dragover {
    border-color: var(--accent-primary);
    background-color: var(--bg-tertiary);
    transform: scale(1.02);
}

.dropzone-content {
    text-align: center;
    padding: 40px;
}

.upload-icon {
    width: 64px;
    height: 64px;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.dropzone-text {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.dropzone-hint {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.editor-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 1024px) {
    .editor-layout {
        grid-template-columns: 400px 1fr;
    }
}

.preview-section {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--border-color);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.preview-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.preview-container {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 250px;
    max-height: 400px;
    overflow: hidden;
}

.preview-image {
    max-width: 100%;
    max-height: 350px;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.image-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.meta-item {
    text-align: center;
}

.meta-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.meta-value {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.controls-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.control-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--border-color);
}

.control-panel h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-panel h2 svg {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
}

.size-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}

.size-card {
    display: flex;
    flex-direction: column;
    padding: 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition);
    position: relative;
}

.size-card:hover {
    border-color: var(--accent-primary);
    background-color: var(--bg-hover);
    transform: translateY(-2px);
}

.size-info {
    margin-bottom: 8px;
}

.size-label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.size-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.size-pixels {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.download-icon {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    transition: color var(--transition);
}

.size-card:hover .download-icon {
    color: var(--accent-primary);
}

.custom-form,
.pdf-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 12px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select {
    padding: 10px 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.pixel-preview {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 10px 14px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    font-family: inherit;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-hover);
}

.btn-danger {
    background-color: transparent;
    color: var(--accent-danger);
    border: 1px solid var(--accent-danger);
}

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

.btn-sm {
    padding: 8px 14px;
    font-size: 0.875rem;
}

.btn-sm svg {
    width: 16px;
    height: 16px;
}

.btn-block {
    width: 100%;
}

.edit-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.edit-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.edit-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.edit-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.edit-buttons {
    display: flex;
    gap: 8px;
}

.inline-form {
    display: inline;
}

.edit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition);
}

.edit-btn:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.edit-btn svg {
    width: 20px;
    height: 20px;
}

.adjust-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.slider-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.slider-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.slider-value {
    color: var(--accent-primary);
    min-width: 40px;
    text-align: right;
}

.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition);
}

.slider::-webkit-slider-thumb:hover {
    background: var(--accent-primary-hover);
    transform: scale(1.1);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition);
}

.slider::-moz-range-thumb:hover {
    background: var(--accent-primary-hover);
    transform: scale(1.1);
}

.compression-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.file-size-preview {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.file-size-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-size-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.file-size-value {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.file-size-row:last-child .file-size-value {
    color: var(--accent-primary);
    font-weight: 500;
}

.footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .container {
        padding: 16px;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .header-icon {
        width: 28px;
        height: 28px;
    }

    .dropzone {
        min-height: 250px;
    }

    .upload-icon {
        width: 48px;
        height: 48px;
    }

    .dropzone-text {
        font-size: 1rem;
    }

    .image-meta {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .meta-item {
        display: flex;
        justify-content: space-between;
        text-align: left;
        padding: 8px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .meta-item:last-child {
        border-bottom: none;
    }

    .meta-label {
        margin-bottom: 0;
    }

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

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

    .edit-row {
        grid-template-columns: 1fr;
    }

    .edit-buttons {
        justify-content: flex-start;
    }
}

@media (max-width: 480px) {
    .preview-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .btn-sm {
        width: 100%;
    }
}

/* Navbar Styles for Templates */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-content {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
}

.nav-logo svg {
    width: 28px;
    height: 28px;
    color: var(--accent-primary);
}

.nav-logo:hover {
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links .nav-link {
    background: transparent;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
}

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

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

@media (max-width: 768px) {
    .navbar {
        padding: 0 16px;
    }
    
    .nav-links .nav-link {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
}

.header-nav {
    margin-top: 16px;
    display: flex;
    justify-content: center;
    gap: 16px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition);
}

.nav-link:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.nav-link svg {
    width: 18px;
    height: 18px;
}

.batch-layout {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.batch-upload-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.batch-dropzone {
    min-height: 200px;
}

.batch-limit {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: 8px;
}

.file-count-indicator {
    display: none;
    margin-top: 16px;
    padding: 10px 16px;
    background-color: var(--accent-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 500;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.batch-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.batch-count {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.batch-thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
}

.batch-thumbnail-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.batch-thumbnail-wrapper {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.batch-thumbnail-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.batch-thumbnail-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(239, 68, 68, 0.9);
    color: white;
    border-radius: 50%;
    opacity: 0;
    transition: opacity var(--transition);
}

.batch-thumbnail-wrapper:hover .batch-thumbnail-remove {
    opacity: 1;
}

.batch-thumbnail-remove svg {
    width: 14px;
    height: 14px;
}

.batch-thumbnail-remove:hover {
    background-color: var(--accent-danger);
}

.batch-thumbnail-name {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.batch-controls-section {
    position: sticky;
    top: 24px;
}

.batch-resize-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.batch-size-select {
    padding: 12px 16px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    width: 100%;
    cursor: pointer;
    transition: border-color var(--transition);
}

.batch-size-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.batch-info {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.batch-info svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--accent-primary);
    margin-top: 1px;
}

.btn-lg {
    padding: 16px 24px;
    font-size: 1rem;
}

.flash-warning {
    border-color: var(--accent-warning);
}

.flash-warning svg {
    color: var(--accent-warning);
}

@media (min-width: 768px) {
    .batch-layout {
        display: grid;
        grid-template-columns: 1fr 350px;
        gap: 24px;
        align-items: start;
    }

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

@media (max-width: 767px) {
    .batch-controls-section {
        position: static;
    }

    .batch-thumbnails {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    }
}

.watermark-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.color-picker {
    width: 100%;
    height: 44px;
    padding: 4px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color var(--transition);
}

.color-picker:hover {
    border-color: var(--border-hover);
}

.color-picker:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.color-picker::-moz-color-swatch {
    border: none;
    border-radius: 4px;
}

.watermark-option {
    padding: 12px 0;
    border-top: 1px solid var(--border-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.95rem;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

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

.pdf-watermark-input {
    padding-top: 12px;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.upload-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    width: 100%;
}

.history-section {
    width: 100%;
    max-width: 600px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.history-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.history-title svg {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
}

.history-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}

.history-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition);
}

.history-item:hover {
    transform: translateY(-2px);
}

.history-thumb {
    aspect-ratio: 1;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--transition);
}

.history-item:hover .history-thumb {
    border-color: var(--accent-primary);
}

.history-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.history-name {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.history-collapsible {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.history-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
}

.history-toggle:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.history-toggle svg {
    width: 18px;
    height: 18px;
}

.history-toggle svg:first-child {
    color: var(--accent-primary);
}

.history-toggle span {
    flex: 1;
    text-align: left;
}

.toggle-chevron {
    transition: transform var(--transition);
}

.history-toggle.active .toggle-chevron {
    transform: rotate(180deg);
}

.history-content {
    padding-top: 12px;
    animation: fadeIn 0.2s ease;
}

.history-grid-compact {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.history-item-compact {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}

.history-item-compact:hover {
    border-color: var(--accent-primary);
    transform: scale(1.05);
}

.history-item-compact img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 768px) {
    .history-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .history-section {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .history-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.panel-hint {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.multi-size-section {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.multi-size-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.multi-size-header h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.multi-size-header h3 svg {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
}

.size-counter {
    font-size: 0.875rem;
    color: var(--accent-primary);
    background-color: rgba(99, 102, 241, 0.1);
    padding: 4px 12px;
    border-radius: 999px;
}

.size-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 8px;
    margin-bottom: 16px;
}

.size-checkbox-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
}

.size-checkbox-item:hover {
    border-color: var(--border-hover);
    background-color: var(--bg-hover);
}

.size-checkbox-item:has(input:checked) {
    border-color: var(--accent-primary);
    background-color: rgba(99, 102, 241, 0.1);
}

.size-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.size-checkbox-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.size-checkbox-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.size-checkbox-pixels {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.multi-size-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.batch-size-selection {
    margin-top: 8px;
}

.batch-size-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.batch-size-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.batch-size-checkboxes {
    max-height: 300px;
    overflow-y: auto;
    padding-right: 8px;
}

.batch-size-checkboxes::-webkit-scrollbar {
    width: 6px;
}

.batch-size-checkboxes::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.batch-size-checkboxes::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.batch-size-checkboxes::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

@media (max-width: 767px) {
    .size-checkboxes {
        grid-template-columns: 1fr;
    }
    
    .multi-size-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
}

.filter-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    width: 100%;
}

.filter-btn:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.filter-name {
    text-align: center;
}

.background-controls {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.divider-text {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 8px 0;
}

.divider-text::before,
.divider-text::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider-text span {
    padding: 0 12px;
}

.bg-color-form .form-row {
    display: flex;
    align-items: flex-end;
    gap: 12px;
}

.bg-color-form .btn {
    flex-shrink: 0;
}

.file-input-wrapper {
    position: relative;
}

.file-input {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-input-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition);
}

.file-input-label:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.file-input-label svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.size-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.size-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
}

.size-tab:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.size-tab.active {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.size-tab svg {
    width: 18px;
    height: 18px;
}

.size-tab-content {
    display: none;
}

.size-tab-content.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

.social-size-card {
    border-left: 3px solid var(--accent-primary);
}

.social-size-item {
    border-left: 3px solid var(--accent-primary);
}

.empty-state-text {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-align: center;
    padding: 24px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px dashed var(--border-color);
}

@media (max-width: 768px) {
    .filter-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .size-tabs {
        flex-direction: column;
    }
    
    .size-tab {
        justify-content: center;
    }
}

/* =====================================================
   Toast Notifications
   ===================================================== */
.toast-notification {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    z-index: 10000;
    box-shadow: var(--shadow-lg);
    animation: toastSlideIn 0.3s ease;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast-success {
    background-color: #166534;
    color: white;
    border: 1px solid #22c55e;
}

.toast-error {
    background-color: #991b1b;
    color: white;
    border: 1px solid #ef4444;
}

.toast-fade-out {
    opacity: 0;
    transform: translateX(100%);
}

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

/* =====================================================
   Loading Spinner
   ===================================================== */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
    margin-right: 6px;
    vertical-align: middle;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* =====================================================
   Preview Image Transitions
   ===================================================== */
.preview-image {
    transition: opacity 0.3s ease, filter 0.1s ease;
}

/* =====================================================
   Background Preview Panel
   ===================================================== */
.background-preview-panel {
    margin-top: 16px;
    animation: fadeIn 0.3s ease;
}

.bg-preview-container {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 150px;
    background-image: 
        linear-gradient(45deg, #333 25%, transparent 25%),
        linear-gradient(-45deg, #333 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #333 75%),
        linear-gradient(-45deg, transparent 75%, #333 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

.bg-preview-image {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.bg-preview-actions {
    display: flex;
    gap: 8px;
}

.bg-preview-actions form {
    flex: 1;
}

/* =====================================================
   Button Loading State
   ===================================================== */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.edit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.filter-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =====================================================
   AI Tools Panel
   ===================================================== */
.ai-panel h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.ai-badge {
    font-size: 0.65rem;
    font-weight: 500;
    padding: 3px 8px;
    background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
    border-radius: 20px;
    color: white;
    margin-left: auto;
}

.ai-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.ai-tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition);
    font-size: 0.8rem;
    text-align: center;
}

.ai-tool-btn svg {
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
}

.ai-tool-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.ai-tool-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.ai-tool-btn.loading svg {
    animation: spin 1s linear infinite;
}

.ai-results-panel {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    animation: fadeIn 0.3s ease;
}

.ai-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.ai-results-title {
    font-weight: 600;
    color: var(--text-primary);
}

.ai-results-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    transition: color var(--transition);
}

.ai-results-close:hover {
    color: var(--text-primary);
}

.ai-results-close svg {
    width: 18px;
    height: 18px;
}

.ai-results-content {
    padding: 16px;
}

.ai-results-content ul {
    margin: 12px 0;
    padding-left: 20px;
    color: var(--text-secondary);
}

.ai-results-content li {
    margin-bottom: 6px;
}

.ai-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
}

.ai-loading .spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.ai-loading p {
    color: var(--text-secondary);
}

.ai-style-buttons {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.ai-style-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition);
    font-size: 0.85rem;
}

.ai-style-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.ai-language-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 12px;
}

.ai-lang-btn {
    padding: 10px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition);
    font-size: 0.8rem;
}

.ai-lang-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.ai-caption-result {
    background: var(--bg-primary);
    padding: 16px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.ai-main-caption {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.ai-alternatives {
    margin-bottom: 16px;
}

.ai-alternatives h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.ai-alt-caption {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 8px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
}

.ai-hashtags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ai-hashtag {
    background: var(--accent-primary);
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.ai-alt-result {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ai-alt-section {
    background: var(--bg-primary);
    padding: 14px;
    border-radius: var(--radius-md);
}

.ai-alt-section h4 {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.ai-alt-text {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.5;
}

.ai-keywords {
    margin-top: 12px;
}

.ai-keywords h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.ai-keyword {
    display: inline-block;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-right: 6px;
    margin-bottom: 6px;
}

.ai-colors-section h4,
.ai-dominant-section h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.ai-color-swatches {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 10px;
}

.ai-color-swatch {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

.ai-color-swatch:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.ai-swatch-color {
    width: 100%;
    height: 40px;
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

.ai-swatch-name {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-primary);
}

.ai-swatch-hex {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.ai-dominant-colors {
    display: flex;
    gap: 8px;
}

.ai-dominant-color {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
}

.ai-mood {
    background: var(--bg-primary);
    padding: 10px 14px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.ai-scene-desc {
    background: var(--bg-primary);
    padding: 14px;
    border-radius: var(--radius-md);
    margin-bottom: 12px;
}

.ai-scene-desc h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.ai-scene-desc p {
    color: var(--text-primary);
    line-height: 1.5;
}

.ai-meta-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.ai-meta-item {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.ai-objects-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
}

.ai-object-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
}

.ai-object-name {
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
}

.ai-object-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 4px;
}

.ai-object-confidence {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.ai-object-confidence.high {
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent-secondary);
}

.ai-object-confidence.medium {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-warning);
}

.ai-object-confidence.low {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

.ai-text-section,
.ai-prominent-colors {
    margin-top: 16px;
}

.ai-text-section h4,
.ai-prominent-colors h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.ai-error {
    color: var(--accent-danger);
    padding: 16px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    text-align: center;
}

.ai-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============================================================================
   COLLAGE CREATOR STYLES
   ============================================================================ */

.collage-container {
    max-width: 1600px;
}

.collage-main {
    padding: 24px 0;
}

.collage-layout {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 24px;
    min-height: calc(100vh - 200px);
}

@media (max-width: 1024px) {
    .collage-layout {
        grid-template-columns: 1fr;
    }
}

.collage-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-height: calc(100vh - 180px);
    overflow-y: auto;
    padding-right: 8px;
}

.collage-sidebar::-webkit-scrollbar {
    width: 6px;
}

.collage-sidebar::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.collage-sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.sidebar-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 16px;
    border: 1px solid var(--border-color);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-title svg {
    width: 18px;
    height: 18px;
    color: var(--accent-primary);
}

.collage-dropzone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-tertiary);
}

.collage-dropzone:hover,
.collage-dropzone.dragover {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
}

.upload-icon-small {
    width: 32px;
    height: 32px;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.collage-dropzone span {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
}

.dropzone-hint-small {
    font-size: 0.75rem !important;
    color: var(--text-muted) !important;
    margin-top: 4px;
}

.uploaded-images {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-top: 12px;
    min-height: 50px;
}

.uploaded-thumb {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: grab;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.uploaded-thumb:hover {
    border-color: var(--accent-primary);
}

.uploaded-thumb.dragging {
    opacity: 0.5;
    border-color: var(--accent-primary);
}

.uploaded-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-thumb {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.uploaded-thumb:hover .remove-thumb {
    opacity: 1;
}

.remove-thumb svg {
    width: 12px;
    height: 12px;
    color: white;
}

.remove-thumb:hover {
    background: var(--accent-danger);
}

.image-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
    text-align: center;
}

.layout-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.layout-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 12px 8px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.layout-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
}

.layout-btn.active {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.2);
}

.layout-slots {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.layout-name {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.2;
}

.control-group {
    margin-bottom: 16px;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.control-value {
    font-family: var(--font-mono);
    color: var(--accent-primary);
    font-size: 0.8rem;
}

.form-range {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-tertiary);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    border: 3px solid var(--bg-secondary);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.form-range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    border: 3px solid var(--bg-secondary);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.background-presets {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 6px;
    margin-bottom: 12px;
}

.bg-preset {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bg-preset:hover {
    border-color: var(--accent-primary);
    transform: scale(1.1);
}

.bg-preset.active {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.3);
}

.color-picker-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.color-picker-row input[type="color"] {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 0;
    background: none;
}

.color-picker-row input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-row input[type="color"]::-webkit-color-swatch {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
}

.color-input {
    flex: 1;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.fit-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.fit-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 8px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.fit-btn svg {
    width: 20px;
    height: 20px;
}

.fit-btn:hover {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
}

.fit-btn.active {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.2);
    color: var(--text-primary);
}

.form-select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.custom-size-fields {
    margin-top: 12px;
}

.size-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
}

.size-inputs .input-group {
    flex: 1;
}

.size-inputs .input-group label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.size-inputs .input-group input {
    width: 100%;
    padding: 8px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.size-separator {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-top: 16px;
}

.sidebar-actions {
    padding-top: 8px;
}

.collage-preview-area {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.collage-preview-container {
    flex: 1;
    min-height: 400px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    text-align: center;
    padding: 40px;
}

.preview-placeholder svg {
    width: 64px;
    height: 64px;
    opacity: 0.5;
}

.preview-placeholder p {
    max-width: 300px;
}

#previewImage {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.preview-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.download-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

.download-info {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.spinner-small {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

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

.toast-success {
    border-color: var(--accent-secondary);
    background: rgba(34, 197, 94, 0.1);
}

.toast-error {
    border-color: var(--accent-danger);
    background: rgba(239, 68, 68, 0.1);
}

.toast button {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.toast button:hover {
    color: var(--text-primary);
}