:root{color-scheme:light dark;--bg: #0f1115;--panel: #161a21;--border: #252a33;--text: #e7eaf0;--muted: #8a93a4;--accent: #2b8a6b;--accent-hover: #36a583;--danger: #d94a4a;--success: #2b8a6b;--radius: 12px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,sans-serif;line-height:1.5}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}.wrap{max-width:960px;margin:0 auto;padding:48px 24px}header h1{margin:0 0 8px;font-size:28px;font-weight:600;letter-spacing:-.01em}.muted{color:var(--muted)}code{background:var(--panel);padding:2px 6px;border-radius:4px;font-size:.9em}.drop{margin-top:32px;border:2px dashed var(--border);border-radius:var(--radius);padding:56px 24px;text-align:center;cursor:pointer;background:var(--panel);transition:border-color .15s ease,background .15s ease,transform .15s ease}.drop:hover{border-color:var(--accent)}.drop.over{border-color:var(--accent);background:#1a2a24;transform:scale(1.01)}.drop.busy{opacity:.7;pointer-events:none}.drop-icon{color:var(--accent);margin-bottom:12px}.drop-title{font-size:16px;font-weight:500;margin-bottom:4px}.drop-sub{color:var(--muted);font-size:13px}.sheets{margin-top:32px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.sheets-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:12px}.sheets-head h2{margin:0;font-size:16px;font-weight:600}.summary{color:var(--accent);font-weight:600}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.04em}.small{font-size:12px}.progress{margin-top:24px;position:relative;background:var(--panel);border:1px solid var(--border);border-radius:999px;height:28px;overflow:hidden}.progress .bar{position:absolute;left:0;top:0;bottom:0;background:var(--accent);transition:width .2s ease}.progress span{position:relative;display:block;text-align:center;line-height:28px;font-size:13px;font-weight:500}.error{margin-top:20px;padding:12px 16px;background:#2a1515;border:1px solid var(--danger);color:#ffb4b4;border-radius:var(--radius);font-size:14px}.success{margin-top:20px;padding:12px 16px;background:#15261f;border:1px solid var(--success);color:#9ddcc3;border-radius:var(--radius);font-size:14px}.actions{margin-top:24px;display:flex;gap:12px}button{font:inherit;padding:10px 18px;border-radius:8px;border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;transition:background .15s ease,border-color .15s ease}button:hover:not(:disabled){border-color:var(--accent)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:500}button.primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}button:disabled{opacity:.5;cursor:not-allowed}button.ghost{background:transparent}