Add route heat colouring and detailed running analytics

app/static/style.css

@@ -5,3 +5,6 @@
 @media(max-width:1180px){.sidebar{width:205px;padding:30px 17px}main{margin-left:205px}.page{padding:30px 25px 20px}.topbar{padding:0 25px}.stat-card{padding:18px 16px}.stat-value{font-size:32px}.time-value{font-size:28px}.stat-label{font-size:8px}.auth-layout{grid-template-columns:1fr 390px;gap:20px}.auth-intro h1{font-size:45px}.section-head{padding:20px}.subtle-label{white-space:normal}.activity-name strong{max-width:215px}}
 @media(max-width:950px){.stats-grid{grid-template-columns:repeat(2,1fr)}.overview-grid{grid-template-columns:1fr}.milestone-card{min-height:210px}.mountain{width:45%;left:50%;top:20px}.milestone-card>.eyebrow{position:static;margin-bottom:15px}.auth-layout{grid-template-columns:1fr;max-width:480px;margin:auto;min-height:0}.auth-intro{padding:0}.auth-intro h1{font-size:39px}.auth-intro p,.auth-art{display:none}.detail-bottom,.settings-grid{grid-template-columns:1fr}.connection-card{grid-template-columns:1fr}.detail-charts{grid-template-columns:1fr}.page-heading h1{font-size:32px}.page-heading{align-items:flex-start}.activity-table td{padding:15px 12px}}
 @media(max-width:680px){.sidebar{position:relative;width:100%;height:auto;padding:17px 19px;border-right:0;border-bottom:1px solid var(--line);display:block}.brand{font-size:27px}.brand-mark{width:30px;height:30px;font-size:26px}.sidebar-label,.sidebar-note,.sidebar-bottom{display:none}.sidebar nav{display:flex;gap:5px;margin-top:12px;overflow-x:auto}.nav-item{white-space:nowrap;font-size:10px;padding:7px 10px;margin:0}.nav-item span{display:none}main{margin:0}.topbar{height:49px;padding:0 20px}.local-badge{display:none}.page{padding:25px 18px}.page-heading{flex-direction:column;gap:16px}.page-heading h1{font-size:32px}.page-heading p{font-size:12px}.stats-grid{gap:11px}.stat-card{padding:17px}.stat-value{font-size:32px}.time-value{font-size:27px}.stat-value small{font-size:11px}.stat-label{font-size:8px}.stat-card p{font-size:9px}.section-head{padding:19px;align-items:flex-start}.section-head h2{font-size:18px}.section-head .subtle-label{max-width:110px;text-align:right}.chart-wrap{padding:10px 15px 20px;height:200px}.auth-card{padding:24px}.auth-intro h1{font-size:38px}.auth-intro{padding-bottom:10px}.footer{font-size:8px;gap:10px}.footer span:last-child{display:none}#route-map{height:290px}.publishing-panel,.settings-card{padding:22px}.splits-table td,.splits-table th{padding:10px;font-size:10px}}
+
+.activity-nav{display:flex;gap:22px;overflow-x:auto;margin:-8px 0 25px;border-bottom:1px solid var(--line);padding-bottom:13px;font-size:12px;white-space:nowrap}.activity-nav a:hover{color:#67934c}.run-map .section-head{flex-wrap:wrap}.map-controls{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:11px}.map-controls label{display:flex;gap:8px;align-items:center}.map-controls select{padding:8px;border:1px solid var(--line);border-radius:6px;color:var(--ink);background:#f6f7f2}.directions-toggle input{accent-color:var(--green)}.run-map #route-map{height:440px;background:#ecf0e7}.route-legend{display:flex;align-items:center;gap:10px;padding:17px 25px 0;font-size:11px;flex-wrap:wrap}.legend-ramp{height:8px;width:180px;border-radius:8px}.legend-note{margin-left:auto;color:var(--muted);font-size:10px}.route-arrow span{display:block;color:white;font-size:18px;line-height:20px;text-shadow:0 0 3px #263d32,0 1px 2px #263d32}.route-end{background:#263d32;color:white;border:2px solid white;border-radius:50%;text-align:center;font-weight:700;line-height:21px;box-shadow:0 1px 6px #263d3266}.route-F{background:#ac654f}.performance-section{margin-top:34px}.section-title{margin:0 0 20px}.section-title p{margin-top:7px;font-size:12px;color:var(--muted)}.metrics-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:22px}.metric-tile{padding:20px 23px;background:#fff}.metric-tile>span{font-size:9px;letter-spacing:1px;color:var(--muted)}.metric-tile strong{display:block;font-weight:500;font-size:29px;letter-spacing:-1px;font-variant-numeric:tabular-nums;margin:5px 0}.metric-tile small,.terrain-grid small{font-size:12px;font-weight:400;margin-left:7px;letter-spacing:0;color:var(--muted)}.metric-tile p{font-size:10px;color:var(--muted)}.analytics-charts .chart-wrap{height:275px}.analytics-charts .section-head{align-items:flex-start}.analytics-charts h2{font-size:17px}.chart-empty{padding:55px 15px;text-align:center;color:var(--muted);font-size:12px}.terrain-panel{margin:25px 0}.section-description{padding:0 25px;color:var(--muted);font-size:12px;max-width:850px}.terrain-grid{display:grid;grid-template-columns:repeat(3,1fr);padding:22px 25px;gap:20px}.terrain-grid article{padding:17px;background:#f6f8f0;border-radius:10px}.terrain-grid article>span{font-size:12px}.terrain-grid strong{display:block;font-size:30px;font-weight:500;margin:7px 0}.terrain-grid article>div{font-size:11px;color:var(--muted)}.terrain-grid article>div span{margin:0 7px}.methodology{margin-top:25px;padding:22px 25px;font-size:12px;color:var(--muted)}.methodology summary{cursor:pointer;color:var(--ink);font-weight:600}.methodology summary span{float:right;font-weight:400;font-size:11px}.methodology p{margin-top:16px;max-width:1000px;line-height:1.8}.methodology a{text-decoration:underline}section[id],details[id]{scroll-margin-top:20px}
+@media(max-width:680px){.metrics-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.metric-tile{padding:15px}.metric-tile strong{font-size:25px}.terrain-grid{grid-template-columns:1fr;gap:10px;padding:18px}.terrain-grid article{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.terrain-grid strong{font-size:24px}.run-map #route-map{height:340px}.legend-note{margin-left:0;width:100%}.route-legend{padding:15px 18px 0}.map-controls{gap:10px}.methodology summary span{display:none}.analytics-charts .chart-wrap{height:250px}}