:root{--primary: #5993e0;--primary-dark: #4d88d6;--bg: #f9fafc;--text: #222;--radius: 8px;--border: #e0e0e0;font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:var(--text);background:var(--bg)}body{margin:0;display:flex;justify-content:center;min-width:320px;min-height:100vh}.container{max-width:900px;margin:auto;padding:2rem 1rem}.header{text-align:center;margin-bottom:2rem}.logo{font-size:2.5rem;font-weight:700;display:flex;justify-content:center;align-items:center;gap:.25rem}.logo .highlight{color:var(--primary)}.logo .arrow{font-size:1.2rem;color:var(--text)}.subtitle{font-size:1rem;color:#555}.upload-section{margin-bottom:2rem;text-align:center}.dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:2rem;background:#fff;transition:border-color .3s,background .3s}.dropzone:hover{border-color:var(--primary);background:#f0f6ff}.dropzone p{margin:0 0 1rem}.file-input input{display:none}.file-input span{display:inline-block;padding:.6em 1.2em;background:var(--primary);color:#fff;border-radius:var(--radius);cursor:pointer;transition:background .3s}.file-input span:hover{background:var(--primary-dark)}.error{color:red;margin-top:.5rem}.results h2{margin-top:2rem;margin-bottom:.5rem}.preview{border:1px solid var(--border);border-radius:var(--radius);background:#fff;padding:1rem;max-height:400px;overflow-y:auto}.actions{display:flex;gap:10px;margin:1rem 0}button{border-radius:var(--radius);border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--primary);color:#fff;cursor:pointer;transition:background .25s}button:hover{background-color:var(--primary-dark)}.code-block{background:#1e1e1e;color:#dcdcdc;padding:1rem;border-radius:var(--radius);max-height:400px;overflow-y:auto;font-family:monospace;font-size:.9rem}