:root{--primary-color: #3b82f6;--primary-hover: #2563eb;--bg-color: #f8fafc;--card-bg: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border-color: #e2e8f0;--radius: 12px;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--font-family: "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-main);line-height:1.5;display:flex;justify-content:center;min-height:100vh;padding:2rem}.container{width:100%;max-width:900px;display:flex;flex-direction:column;gap:2rem}header{text-align:center;margin-bottom:1rem}h1{font-size:2.5rem;font-weight:800;color:var(--text-main);margin-bottom:.5rem;letter-spacing:-.05em}.subtitle{color:var(--text-muted);font-size:1.1rem}main{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}@media(max-width:768px){main{grid-template-columns:1fr}}.card{background:var(--card-bg);padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border-color)}.controls{display:flex;flex-direction:column;gap:1.5rem}.input-group{display:flex;flex-direction:column;gap:.5rem}label{font-weight:600;font-size:.9rem;color:var(--text-main)}input[type=text],input[type=file]{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;transition:border-color .2s,box-shadow .2s}input[type=text]:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #3b82f61a}input[type=file]{background:#f1f5f9;cursor:pointer}details{background:#f8fafc;border:1px solid var(--border-color);border-radius:8px;overflow:hidden}summary{padding:1rem;font-weight:600;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between}summary:after{content:"+";font-size:1.2rem;font-weight:400}details[open] summary:after{content:"-"}details[open] summary{border-bottom:1px solid var(--border-color)}.options-content{padding:1rem;display:flex;flex-direction:column;gap:1rem}.slider-group{display:flex;flex-direction:column;gap:.5rem}.slider-header{display:flex;justify-content:space-between;font-size:.85rem;color:var(--text-muted)}input[type=range]{width:100%;cursor:pointer;accent-color:var(--primary-color)}.preview{display:flex;flex-direction:column;align-items:center;justify-content:center;background:#e2e8f0;min-height:400px;position:relative;overflow:hidden;background-image:linear-gradient(45deg,#cbd5e1 25%,transparent 25%),linear-gradient(-45deg,#cbd5e1 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#cbd5e1 75%),linear-gradient(-45deg,transparent 75%,#cbd5e1 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px}canvas{max-width:100%;max-height:100%;box-shadow:0 10px 15px -3px #0000001a;image-rendering:pixelated}.disclaimer{margin-top:1rem;font-size:.8rem;color:var(--text-muted);text-align:center}.preview-container{display:flex;flex-direction:column;align-items:center;gap:1rem;width:100%}