*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f1f5f9;--card:#fff;--border:#e2e8f0;--text:#0f172a;--muted:#64748b;--primary:#3b82f6;--primary-dark:#2563eb;--result:#7c3aed;--orange:#f97316;--green:#16a34a;--red:#dc2626;--shadow:0 1px 3px #00000014, 0 1px 2px #0000000a;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,sans-serif;font-size:14px;line-height:1.5}body,#root{min-height:100vh}.app{flex-direction:column;height:100vh;display:flex;overflow:hidden}.app-header{background:var(--card);border-bottom:1px solid var(--border);align-items:baseline;gap:16px;padding:16px 24px;display:flex}.app-header h1{letter-spacing:-.3px;color:var(--text);white-space:nowrap;font-size:18px;font-weight:700}.app-header p{color:var(--muted);font-size:13px}.app-body{flex:1;display:flex;overflow:hidden}.sidebar{border-right:1px solid var(--border);background:var(--bg);flex-direction:column;gap:8px;width:300px;min-width:300px;padding:10px;display:flex;overflow-y:auto}.content{background:var(--bg);flex-direction:column;flex:1;gap:12px;padding:16px;display:flex;overflow:hidden}.card{background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:8px;padding:12px}.card h2{text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:8px;font-size:13px;font-weight:600}.card-hint{color:var(--muted);margin-bottom:8px;font-size:12px}.card-divider{border:none;border-top:1px solid var(--border);margin:10px 0}.card-result{background:#faf5ff;border-color:#ddd6fe}.upload-zone{border:2px dashed var(--border);text-align:center;cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:6px;flex-direction:column;align-items:center;gap:4px;padding:12px 16px;transition:all .15s;display:flex}.upload-zone:hover,.upload-zone.dragging{border-color:var(--primary);background:#3b82f60a}.upload-zone.loaded{border-style:solid;border-color:var(--green);background:#f0fdf4}.upload-zone.error{border-color:var(--red);background:#fef2f2}.upload-icon{color:var(--muted);font-size:20px;line-height:1}.upload-zone.loaded .upload-icon{color:var(--green)}.upload-zone.error .upload-icon{color:var(--red)}.upload-label{font-size:13px;font-weight:500}.upload-filename{color:var(--green);font-size:12px;font-weight:600}.upload-hint{color:var(--muted);font-size:11px}.course-meta{justify-content:space-between;align-items:center;margin-top:10px;display:flex}.course-name{color:var(--text);font-size:13px;font-weight:500}.course-dist{color:var(--muted);font-size:12px}.race-input{flex-direction:column;gap:10px;display:flex}.field-group{flex-direction:column;gap:4px;display:flex}.field-label{color:var(--text);font-size:12px;font-weight:500}.preset-pills,.surface-pills{flex-wrap:wrap;gap:4px;margin-bottom:4px;display:flex}.pill{border:1px solid var(--border);background:var(--card);cursor:pointer;color:var(--text);border-radius:20px;padding:3px 10px;font-size:12px;transition:all .1s}.pill:hover{border-color:var(--primary);color:var(--primary)}.pill.active{background:var(--primary);border-color:var(--primary);color:#fff}.text-input{border:1px solid var(--border);width:100%;color:var(--text);background:var(--card);border-radius:6px;outline:none;padding:7px 10px;font-family:inherit;font-size:13px;transition:border-color .15s}.text-input:focus{border-color:var(--primary)}.text-input.input-error{border-color:var(--red)}.field-error{color:var(--red);font-size:11px}.field-hint{color:var(--muted);font-size:11px}.summary{flex-direction:column;gap:8px;display:flex}.summary-time{background:var(--result);color:#fff;border-radius:8px;justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.summary-time-label{text-transform:uppercase;letter-spacing:.5px;opacity:.8;font-size:11px}.summary-time-value{letter-spacing:-.5px;font-size:26px;font-weight:700;line-height:1}.stat-grid{grid-template-columns:1fr 1fr;gap:5px;display:grid}.stat{background:#7c3aed0f;border:1px solid #ddd6fe;border-radius:6px;flex-direction:column;gap:1px;padding:6px 8px;display:flex}.stat-label{color:var(--muted);text-transform:uppercase;letter-spacing:.4px;font-size:10px}.stat-value{color:var(--text);font-size:12px;font-weight:600}.empty-hint{flex-direction:column;gap:8px;padding:4px 0;display:flex}.step{color:var(--muted);align-items:center;gap:10px;font-size:12px;display:flex}.step-n{background:var(--primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;font-size:11px;font-weight:700;display:flex}.map-container{border:1px solid var(--border);min-height:0;box-shadow:var(--shadow);border-radius:8px;flex:1;overflow:hidden}.map-loading{height:100%;color:var(--muted);background:var(--card);justify-content:center;align-items:center;font-size:13px;display:flex}.chart-container{background:var(--card);border:1px solid var(--border);height:220px;box-shadow:var(--shadow);border-radius:8px;flex-direction:column;display:flex;overflow:hidden}.chart-header{justify-content:space-between;align-items:center;gap:8px;padding:10px 16px 4px;display:flex}.chart-title{color:var(--muted);text-transform:uppercase;letter-spacing:.4px;font-size:12px;font-weight:600}.chart-legend-hint{color:var(--muted);align-items:center;gap:4px;font-size:11px;display:flex}.legend-dot{border-radius:50%;width:8px;height:8px;display:inline-block}.chart-body{flex:1;min-height:0;padding:0 4px 8px}.content-empty{background:var(--card);border:1px solid var(--border);border-radius:8px;flex:1;justify-content:center;align-items:center;display:flex}.content-empty-inner{text-align:center;flex-direction:column;align-items:center;gap:12px;padding:40px;display:flex}.content-empty-icon{font-size:48px}.content-empty-inner p{color:var(--muted);max-width:280px;font-size:14px}.chart-tooltip{background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:6px;padding:8px 12px;font-size:12px;line-height:1.8}.chart-tooltip-dist{color:var(--primary);margin-bottom:2px;font-weight:600}.info-btn{border:1px solid var(--border);cursor:pointer;color:var(--muted);background:0 0;border-radius:20px;flex-shrink:0;align-items:center;gap:5px;margin-left:auto;padding:4px 10px 4px 8px;transition:color .15s,background .15s,border-color .15s;display:flex}.info-btn:hover{color:var(--primary);border-color:var(--primary);background:#3b82f60f}.info-btn-label{font-size:12px}.dialog-backdrop{z-index:1000;background:#0006;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.dialog{background:var(--card);border-radius:12px;width:100%;max-width:640px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0003}.dialog-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:20px 24px 16px;display:flex}.dialog-header h2{color:var(--text);font-size:16px;font-weight:600}.dialog-close{cursor:pointer;color:var(--muted);background:0 0;border:none;border-radius:4px;padding:4px 8px;font-size:16px;line-height:1}.dialog-close:hover{color:var(--text);background:var(--bg)}.dialog-body{color:var(--muted);flex-direction:column;gap:16px;padding:20px 24px 24px;font-size:14px;line-height:1.65;display:flex}.dialog-body p{margin:0}.dialog-body strong{color:var(--text)}.dialog-body h3{color:var(--text);margin-bottom:-8px;font-size:13px;font-weight:600}.dialog-body ul{flex-direction:column;gap:8px;margin:0;padding-left:18px;display:flex}.dialog-footer-note{border-top:1px solid var(--border);margin-top:4px;padding-top:16px;font-style:italic}@media (width<=768px){.app{height:auto;overflow:auto}.app-header{flex-direction:column;gap:4px}.app-body{flex-direction:column;overflow:auto}.sidebar{width:100%;min-width:unset;border-right:none;border-bottom:1px solid var(--border)}.content{padding:12px}.map-container{flex:none;height:300px}.chart-container{height:200px}}