:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;font-weight:400;color:#111827;background-color:#fafafa;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button:focus-visible{outline:2px solid #2563eb;outline-offset:2px}.app{min-height:100vh;background:#fafafa;color:#111827}.app-header{text-align:center;padding:1.5rem 1rem}.app-header-brand{display:flex;align-items:center;justify-content:center;gap:14px}.app-header-logo{max-height:40px;width:auto;object-fit:contain}.app-header-title{margin:0;font-size:1.25rem;font-weight:600;color:#2563eb}.tagline{margin:.5rem 0 0;font-size:.95rem;color:#6b7280}@media(min-width:768px){.app-header-logo{max-height:56px}.app-header-title{font-size:1.75rem}}.split{display:flex;flex-direction:column;gap:1.5rem;max-width:1200px;margin:0 auto;padding:0 1rem 2rem}.panel{flex:1}.panel-action{display:flex;flex-direction:column}.status{margin:.75rem 0 0;font-size:.85rem;color:#6b7280}@media(min-width:768px){.split{flex-direction:row;padding:0 2rem 2rem}.panel{min-width:0}.panel-action{flex:0 0 45%;max-width:400px}.panel-preview{flex:1;min-width:300px}}.dropzone:hover{border-color:#9ca3af!important;background:#f9fafb}