.palette-builder {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    background: var(--bg-secondary);
    transition: border-color var(--transition-fast);
}

.palette-builder-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.palette-builder-header strong {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
}

.palette-builder-header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.palette-builder-count {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.palette-builder-count.has-colors {
    color: var(--accent-primary);
    font-weight: var(--font-weight-medium);
}

.palette-builder-reset-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    gap: var(--spacing-xs);
}

.palette-builder-reset-btn:hover {
    color: var(--error);
    background: transparent;
    box-shadow: none;
}

.palette-builder-reset-btn:hover i {
    transform: rotate(45deg);
}

.palette-builder-reset-btn:active i {
    transform: rotate(90deg);
}

.palette-builder-reset-btn i {
    transition: transform var(--transition-normal);
    display: inline-block;
}

.palette-chips-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xs);
    min-height: 44px;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-primary);
    align-items: center;
    transition: border-color var(--transition-fast), background var(--transition-fast);
    max-width: 100%;
    box-sizing: border-box;
}

.palette-chips-container.drag-over {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.palette-chips-container.empty {
    border-style: dashed;
    display: flex;
    align-items: center;
    justify-content: center;
}

.palette-chips-placeholder {
    color: var(--text-muted);
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) var(--spacing-sm);
    user-select: none;
    text-align: center;
}

.palette-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 2px var(--spacing-sm) 2px 3px;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
    cursor: default;
    animation: chipFadeIn 0.2s ease;
    min-height: 32px;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
    width: 100%;
}

@keyframes chipFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.palette-chip:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.palette-chip-swatch {
    width: 22px;
    height: 22px;
    border-radius: var(--border-radius-sm);
    display: inline-block;
    flex-shrink: 0;
}

.palette-chip-label {
    font-size: 11px;
    font-family: var(--font-mono);
    font-weight: var(--font-weight-medium);
    padding: 0 2px;
    letter-spacing: 0.3px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.palette-chip-remove {
    background: none;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-base);
    padding: 0 2px;
    opacity: 0.5;
    transition: all var(--transition-fast);
    line-height: 1;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.palette-chip-remove:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.1);
    transform: scale(1.2);
}

.palette-chip-remove:active {
    transform: scale(0.8);
}

.palette-input-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    align-items: center;
}

.palette-color-picker {
    width: 40px;
    height: 40px;
    padding: 2px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    background: var(--bg-primary);
    flex-shrink: 0;
}

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

.palette-color-picker::-webkit-color-swatch {
    border-radius: var(--border-radius-sm);
    border: none;
}

.palette-hex-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-mono);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-width: 0;
}

.palette-hex-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
}

.palette-hex-input::placeholder {
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.palette-add-btn {
    background: transparent !important;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
    white-space: nowrap;
    height: 32px;
    flex-shrink: 0;
    padding: 0 var(--spacing-md);
}

.palette-add-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.palette-add-btn:active {
    transform: scale(0.96);
}

.palette-actions-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.palette-save-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-xl);
    background: var(--accent-primary);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.palette-save-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: scale(1.01);
}

.palette-save-btn:active:not(:disabled) {
    transform: scale(0.98);
}

.palette-save-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.palette-save-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

.palette-clear-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--error);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.palette-clear-btn:hover:not(:disabled) {
    background: var(--error-border);
    transform: scale(1.02);
}

.palette-clear-btn:active:not(:disabled) {
    transform: scale(0.96);
}

.palette-clear-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.image-upload-wrapper {
    margin-bottom: var(--spacing-sm);
}

.image-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    background: var(--bg-secondary);
    position: relative;
}

.image-drop-zone:hover:not(.processing):not(.has-preview) {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.image-drop-zone.drag-over {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
    transform: scale(1.01);
}

.image-drop-zone.processing {
    cursor: wait;
    opacity: 0.7;
}

.image-drop-zone.success {
    border-color: var(--success-border);
    background: var(--success-bg);
}

.image-drop-zone.error {
    border-color: var(--error-border);
    background: var(--error-bg);
}

.drop-zone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.drop-zone-content i {
    font-size: 28px;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.drop-zone-content .fa-spinner {
    color: var(--accent-primary);
}

.drop-zone-content .fa-check-circle {
    color: var(--success-border);
}

.drop-zone-content .fa-exclamation-circle {
    color: var(--error-border);
}

.drop-zone-content p {
    margin: 2px 0;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.drop-zone-content small {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.drop-zone-content .color-chips-grid {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: center;
}

.drop-zone-content .color-chips-grid .color-chip {
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-sm);
    display: inline-block;
    border: 2px solid rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-fast);
}

.drop-zone-content .color-chips-grid .color-chip:hover {
    transform: scale(1.15);
}

.drop-zone-content .extracted-info {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

.image-preview {
    position: relative;
    margin-top: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    width: 100%;
    max-height: 300px;
    box-shadow: var(--shadow-sm);
    background: var(--bg-secondary);
}

.image-preview.hidden {
    display: none;
}

.image-preview img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: contain;
    display: block;
}

.image-preview-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.7);
    color: var(--text-primary);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 5;
    line-height: 1;
}

.image-preview-close:hover {
    background: rgba(200, 0, 0, 0.85);
    transform: scale(1.1);
}

.image-preview-close:active {
    transform: scale(0.9);
}

.image-upload-error {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-base);
    color: var(--error-text);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    background: var(--error-bg);
    border: 1px solid var(--error-border);
}

.image-upload-error.hidden {
    display: none;
}

@media (max-width: 768px) {
    .palette-chips-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .palette-builder {
        padding: var(--spacing-md);
    }

    .palette-input-row {
        flex-wrap: wrap;
    }

    .palette-color-picker {
        width: 36px;
        height: 36px;
    }

    .palette-hex-input {
        font-size: var(--font-size-sm);
        padding: var(--spacing-xs) var(--spacing-sm);
        min-width: 120px;
    }

    .palette-add-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .palette-save-btn,
    .palette-clear-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .palette-chips-container {
        min-height: 36px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .palette-chip {
        padding: 1px var(--spacing-xs) 1px 2px;
    }

    .palette-chip-swatch {
        width: 18px;
        height: 18px;
    }

    .palette-chip-label {
        font-size: 10px;
    }

    .image-drop-zone {
        padding: var(--spacing-lg);
    }

    .drop-zone-content i {
        font-size: 24px;
    }

    .drop-zone-content p {
        font-size: var(--font-size-sm);
    }

    .image-preview {
        max-height: 200px;
    }

    .image-preview img {
        max-height: 200px;
    }

    .palette-builder-header strong {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .palette-chips-container {
        grid-template-columns: 1fr;
    }

    .palette-actions-row {
        flex-direction: column;
    }

    .palette-save-btn {
        flex: none;
        width: 100%;
    }

    .palette-clear-btn {
        width: 100%;
        justify-content: center;
    }

    .palette-input-row {
        flex-direction: column;
        align-items: stretch;
    }

    .palette-color-picker {
        width: 100%;
        height: 44px;
    }
}