:root{--bg: #f8fafc;--panel: #ffffff;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--primary: #2563eb;--danger: #dc2626;--warning: #b45309;--radius: 8px;--panel-width: 360px;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font:14px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text);background:var(--bg)}button,input{font:inherit;color:inherit}.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--border);border-radius:var(--radius);background:#fff;cursor:pointer;white-space:nowrap}.btn:hover:not(:disabled){background:#f1f5f9}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn--primary:hover:not(:disabled){background:#1d4fd7}.btn--active{background:#dbeafe;border-color:#93c5fd}.btn--danger{color:var(--danger)}.btn--danger:hover:not(:disabled){background:#fef2f2}.btn--icon{padding:5px}.muted{color:var(--muted)}.small{font-size:12px}.error{color:var(--danger)}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.page{max-width:1000px;margin:0 auto;padding:24px 20px 60px}.page__header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.page__header h1{display:flex;align-items:center;gap:8px;font-size:20px;margin:0}.new-route{display:flex;gap:8px;margin-bottom:20px}.new-route input{flex:1;padding:7px 10px;border:1px solid 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.btn{flex:1;justify-content:center}.panel__toggle{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--muted);cursor:pointer}.panel__empty{font-size:13px}.segments,.highlights{list-style:none;margin:0;padding:0}.segments{display:flex;flex-direction:column;gap:8px}.segment{border:1px solid var(--border);border-radius:var(--radius);padding:8px}.segment--selected{border-color:var(--primary);box-shadow:0 0 0 2px #dbeafe}.segment__head{display:flex;align-items:center;gap:8px;width:100%;border:none;background:none;padding:0 0 6px;cursor:pointer;text-align:left}.segment__swatch{width:12px;height:12px;border-radius:3px;flex:none}.segment__title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.segment__len{color:var(--muted);font-variant-numeric:tabular-nums}.segment__rename input,.highlight__name{width:100%;padding:5px 8px;border:1px solid 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var(--border);border-radius:var(--radius);padding:10px;display:flex;flex-direction:column;gap:8px;background:#f8fafc}.marker-editor__head{display:flex;align-items:center;justify-content:space-between}.marker-editor__kind{display:flex;gap:14px;font-size:13px}.marker-editor__kind label{display:flex;align-items:center;gap:5px;cursor:pointer}.marker-editor__icons{display:flex;gap:5px;flex-wrap:wrap}.icon-btn{display:grid;place-items:center;width:30px;height:30px;border:1px solid var(--border);border-radius:6px;background:#fff;cursor:pointer}.icon-btn--active{border-color:var(--primary);background:#dbeafe}.marker-editor__label{padding:6px 8px;border:1px solid var(--border);border-radius:6px}.marker-editor__actions{display:flex;gap:8px}.basemaps{position:absolute;top:12px;left:12px;z-index:5;display:flex;align-items:center;gap:2px;padding:3px;background:#fffffff0;border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 2px 8px 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