.img-tool-wrapper { --p-bg: #ffffff; --p-border: #e2e8f0; --p-primary: #8b5cf6; --p-text: #0f172a; width: 100%; max-width: 900px; margin: 0 auto; background: var(--p-bg); border-radius: 24px; padding: 32px; border: 1px solid var(--p-border); }
.img-header { font-size: 1.5rem; font-weight: 600; color: var(--p-text); margin-bottom: 8px; display: flex; align-items: center; gap: 12px; }
.img-badge { background: #ede9fe; color: #5b21b6; padding: 4px 12px; border-radius: 30px; font-size: 0.8rem; font-weight: 500; }
.img-subtitle { color: #64748b; font-size: 0.95rem; padding-bottom: 16px; border-bottom: 1px solid var(--p-border); margin-bottom: 24px; }
.img-upload-area { border: 2px dashed #cbd5e1; border-radius: 16px; padding: 40px 20px; text-align: center; cursor: pointer; transition: 0.2s; background: #f8fafc; margin-bottom: 24px; }
.img-upload-area.drag-over { border-color: var(--p-primary); background: #f5f3ff; }

.sprite-layout { display: grid; grid-template-columns: 1fr 300px; gap: 24px; display: none; }
.sprite-layout > div { min-width: 0; }
@media(max-width: 768px) { 
    .sprite-layout { grid-template-columns: 1fr; } 
    .img-tool-wrapper { padding: 20px; border-radius: 16px; }
}

.canvas-container { background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAAXNSR0IArs4c6QAAACVJREFUKFNjZCASMDKgA2NjY/9Hk0BTAxRTY/SQYAQGhwcBAKVrCQH2c2HjAAAAAElFTkSuQmCC'); border: 1px solid var(--p-border); border-radius: 8px; overflow: auto; max-height: 400px; width: 100%; }
#spriteCanvas { max-width: 100%; height: auto; }

textarea.css-output { width: 100%; height: 300px; background: #f8fafc; border: 1px solid #cbd5e1; color: #0f172a; padding: 12px; border-radius: 8px; font-family: monospace; font-size: 0.85rem; resize: none; outline: none; }

.btn-primary { padding: 12px; width: 100%; background: var(--p-primary); color: white; border: none; border-radius: 8px; cursor: pointer; font-weight: 600; margin-top: 12px; transition: 0.2s; }
.btn-primary:hover { opacity: 0.9; }

[data-theme="dark"] .img-tool-wrapper { background: #1e293b !important; border-color: #334155 !important; }
[data-theme="dark"] .img-upload-area { background: #0f172a; border-color: #475569; }
[data-theme="dark"] textarea.css-output { background: #0f172a; border-color: #475569; color: #10b981; }