:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto 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h3{color:#4472c4;margin-bottom:.5rem;font-size:1.1rem}.feature p{color:#666;font-size:.9rem;line-height:1.5}.upload-form{display:flex;flex-direction:column;gap:1.5rem}.drop-zone{border:3px dashed #cbd5e0;border-radius:12px;padding:3rem 2rem;text-align:center;transition:all .3s ease;background:#f7fafc;cursor:pointer}.drop-zone:hover{border-color:#4472c4;background:#edf2f7}.drop-zone.active{border-color:#4472c4;background:#e6f0ff;transform:scale(1.02)}.drop-zone.has-file{border-color:#48bb78;background:#f0fff4}.file-input{display:none}.file-label{cursor:pointer;display:block}.upload-icon{font-size:4rem;margin-bottom:1rem}.upload-text{color:#2d3748;font-size:1.1rem;margin-bottom:.5rem}.upload-text 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#4472c433}.type-icon{font-size:2.5rem}.type-name{font-size:1.1rem;font-weight:600;color:#2d3748}.type-desc{font-size:.85rem;color:#718096}.slides-section{display:flex;flex-direction:column;gap:.5rem;padding:1.5rem;background:#f7fafc;border-radius:8px;border:2px dashed #cbd5e0}.slides-label{color:#2d3748;font-weight:600;font-size:1rem}.slides-input{padding:.9rem 1rem;border:2px solid #e2e8f0;border-radius:8px;font-size:1.1rem;font-family:inherit;background:#fff;cursor:pointer;transition:border-color .3s ease;color:#2d3748;font-weight:600;text-align:center}.slides-input:focus{outline:none;border-color:#4472c4;box-shadow:0 0 0 3px #4472c41a}.slides-hint{color:#718096;font-size:.85rem;text-align:center;margin:0}.design-section{display:flex;flex-direction:column;gap:1rem}.design-label{color:#2d3748;font-weight:600;font-size:1rem;text-align:center}.design-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}@media(max-width:900px){.design-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.design-grid{grid-template-columns:1fr;max-width:400px;margin:0 auto}.design-card{min-height:auto}}.design-card{background:#fff;border:2px solid #e2e8f0;border-radius:12px;padding:1rem;cursor:pointer;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;gap:.75rem}.design-card:hover{border-color:#cbd5e0;transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.design-card.active{border-color:#4472c4;background:linear-gradient(135deg,#4472c40d,#667eea0d);box-shadow:0 0 0 3px #4472c433}.template-preview-image{width:100%;height:auto;border-radius:8px;box-shadow:0 2px 8px 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