:root{font-family:Inter,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 -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--primary: #2c3e50;--accent: #27ae60;--background: #f4f7f6;--text: #333;--white: #ffffff;--error: #e74c3c;--best: #eafaf1}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--background);color:var(--text);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:2rem}header{text-align:center;margin-bottom:3rem;border-bottom:2px solid #ddd;padding-bottom:1rem}header h1{font-size:2.5rem;color:var(--primary);margin-bottom:.5rem}h2{color:var(--primary);border-left:5px solid var(--accent);padding-left:1rem;margin-bottom:1.5rem}section{background:var(--white);padding:2rem;border-radius:12px;box-shadow:0 4px 6px #0000000d;margin-bottom:2rem}.upload-section input{font-size:1rem;padding:1rem;border:2px dashed var(--accent);border-radius:8px;width:100%;max-width:400px;cursor:pointer}.error{color:var(--error);font-weight:700}.usage-stats{display:flex;gap:2rem;font-size:1.2rem}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse;margin-top:1rem}th,td{padding:1rem;text-align:left;border-bottom:1px solid #eee}th{background:#f8f9fa;font-weight:600;color:#666}.best-plan{background-color:var(--best);font-weight:700}.credit{color:var(--accent)}.total-cost{font-size:1.2rem;color:var(--primary);font-weight:800}.btn-link{display:inline-block;padding:.5rem 1rem;background-color:var(--primary);color:#fff;text-decoration:none;border-radius:6px;transition:background .3s}.btn-link:hover{background-color:#34495e}.disclaimer{font-size:.85rem;color:#777;margin-top:1rem;font-style:italic}footer{text-align:center;margin-top:4rem;padding-top:2rem;border-top:1px solid #ddd;color:#888;font-size:.9rem}