:root{--bg: #0b0f1a;--card: #121826;--text: #e2e8f0;--muted: #94a3b8;--accent: #4f46e5;--accent-2: #22d3ee;--error: #ef4444;--border: #1f2937;--surface: #0b1220;--nav-bg: rgba(11,15,26,.95);--spinner-track: rgba(255,255,255,.15)}@media(prefers-color-scheme:light){:root{--bg: #f8fafc;--card: #ffffff;--text: #0f172a;--muted: #64748b;--accent: #4f46e5;--accent-2: #22d3ee;--error: #ef4444;--border: #e2e8f0;--surface: #f1f5f9;--nav-bg: rgba(248,250,252,.95);--spinner-track: rgba(0,0,0,.08)}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.container{max-width:1280px;margin:0 auto;padding:1.25rem 1rem}@media(min-width:640px){.container{padding:2rem 1.5rem}}@media(min-width:1024px){.container{padding:2rem}}header{margin-bottom:1.5rem}header h1{margin:0 0 .5rem;font-size:1.8rem}header p{margin:0;color:var(--muted)}.controls{background:var(--card);border:1px solid var(--border);padding:1rem;border-radius:12px;display:grid;gap:1rem}.file-input{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap}.row{display:flex;gap:1rem;align-items:center;flex-wrap:wrap}label{display:grid;gap:.25rem;font-size:.9rem;color:var(--muted)}select,input[type=range],input[type=file],button,a.secondary{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:.5rem .75rem}input[type=range]{width:100%;min-width:120px;accent-color:var(--accent)}button{cursor:pointer;background:linear-gradient(90deg,var(--accent),var(--accent-2));border:none}button.secondary,a.secondary{background:transparent;border:1px solid var(--border)}button:disabled{opacity:.6;cursor:not-allowed}.preview{margin-top:1.5rem}.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:.75rem}.card 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var(--border);border-radius:12px;padding:2rem 1.5rem;text-align:center;cursor:pointer;color:var(--muted);transition:border-color .2s,background .2s;-webkit-user-select:none;-moz-user-select:none;user-select:none}.upload-zone:hover{border-color:var(--accent);background:#4f46e50f;color:var(--text)}.upload-zone__icon{font-size:2rem;line-height:1;margin-bottom:.75rem;color:var(--accent);display:flex;justify-content:center}.upload-zone__filename{font-size:.85rem;color:var(--text);word-break:break-all;margin:0}.upload-zone__thumb{max-width:100%;max-height:180px;-o-object-fit:contain;object-fit:contain;border-radius:6px}.preview-frame canvas{background-image:linear-gradient(45deg,#374151 25%,transparent 25%),linear-gradient(-45deg,#374151 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#374151 75%),linear-gradient(-45deg,transparent 75%,#374151 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0px;background-color:#1f2937;border-radius:8px}.preview-frame{width:100%;max-width:500px;aspect-ratio:1 / 1;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;border-radius:12px;border:1px solid var(--border);overflow:hidden}.upload-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;width:100%;height:100%}.processing-preview{position:relative;width:100%;height:100%}.processing-preview__img{display:block;width:100%;height:100%;-o-object-fit:contain;object-fit:contain;filter:brightness(.4)}.processing-preview__overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem}.processing-preview__progress-text{font-size:1.5rem;font-weight:700;color:var(--text)}.processing-preview__label{margin:0;font-size:.85rem;color:var(--muted)}.spinner{width:40px;height:40px;border:3px solid var(--spinner-track);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.converter-page{max-width:900px;margin:0 auto;padding:1.25rem 1rem 3rem}@media(min-width:640px){.converter-page{padding:2rem 1.5rem 3rem}}.converter-hero{text-align:center;margin-bottom:1.75rem}.converter-title{margin:0;font-size:clamp(1.4rem,4vw,2rem);font-weight:700;background:linear-gradient(90deg,#4f46e5,#22d3ee);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.converter-subtitle{margin:.5rem 0 0;color:var(--muted);font-size:.92rem;line-height:1.6}.converter-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:1.25rem;display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.converter-card.dragover{outline:2px dashed var(--accent);outline-offset:4px}.converter-controls{display:flex;flex-wrap:wrap;align-items:flex-end;gap:.875rem}.converter-label{display:flex;flex-direction:column;gap:.25rem;font-size:.85rem;color:var(--muted)}.converter-label select{min-height:40px;min-width:110px;font-size:.9rem}.converter-label--range{flex:1;min-width:160px}.converter-label--range input[type=range]{width:100%}.converter-actions{display:flex;gap:.625rem;flex-wrap:wrap;margin-left:auto}@media(max-width:480px){.converter-actions{margin-left:0;width:100%}.converter-actions button,.converter-actions a{flex:1;justify-content:center}}.converter-results{display:flex;flex-direction:column;gap:.875rem}.image-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:.875rem;display:flex;align-items:center;gap:.875rem;flex-wrap:wrap;cursor:grab;transition:border-color .15s}.image-card:active{cursor:grabbing}.image-card:hover{border-color:#374151}.image-card__thumb{position:relative;flex-shrink:0;width:100px;height:100px;border-radius:8px;overflow:hidden;border:1px solid var(--border);background:var(--surface);display:flex;align-items:center;justify-content:center}@media(min-width:480px){.image-card__thumb{width:120px;height:120px}}.image-card__thumb img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.image-card__label{position:absolute;bottom:0;left:0;right:0;text-align:center;font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;padding:.2rem 0;background:#0009;color:#fff}.image-card__placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;text-align:center}.image-card__info{flex:1;min-width:0;display:flex;flex-direction:column;gap:.35rem}.image-card__filename{margin:0;font-size:.85rem;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}.image-card__dim{margin:0;font-size:.78rem;color:var(--muted)}.image-card__sizes{font-size:.8rem;display:flex;align-items:center;gap:0;flex-wrap:wrap}.image-card__actions{display:flex;gap:.5rem;flex-shrink:0;align-items:center}@media(max-width:400px){.image-card{flex-direction:column;align-items:flex-start}.image-card__thumb{width:100%;height:160px}.image-card__actions{width:100%;justify-content:flex-end}}.canvas-viewport{position:relative;overflow:hidden;min-height:300px;border-radius:12px;background-image:linear-gradient(45deg,rgba(128,128,128,.12) 25%,transparent 25%),linear-gradient(-45deg,rgba(128,128,128,.12) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(128,128,128,.12) 75%),linear-gradient(-45deg,transparent 75%,rgba(128,128,128,.12) 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0px;display:flex;align-items:center;justify-content:center;-webkit-user-select:none;-moz-user-select:none;user-select:none}.canvas-zoom-controls{position:absolute;top:8px;right:8px;display:flex;align-items:center;gap:2px;background:var(--card);border:1px solid var(--border);border-radius:8px;padding:3px 6px;z-index:20;font-size:.78rem;color:var(--muted);pointer-events:auto}.canvas-layer-toggle{position:absolute;bottom:8px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:2px;background:var(--card);border:1px solid var(--border);border-radius:8px;padding:3px 6px;z-index:20;pointer-events:auto;white-space:nowrap}.canvas-viewport--drop{outline:2px dashed var(--accent);outline-offset:-2px}