:root{--bg:#f7f8fb;--panel:#fff;--border:#e7eaf0;--text:#20242a;--muted:#747c87;--accent:#4e73df;--accent-dark:#3558c8;--sidebar:#292d38;--sidebar-soft:#333844;--danger:#b42318}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}
.app-shell{min-height:100vh;display:grid;grid-template-columns:270px minmax(0,1fr)}
.app-sidebar{position:sticky;top:0;height:100vh;background:var(--sidebar);color:#fff;display:flex;flex-direction:column;z-index:20;overflow:hidden}.sidebar-brand{display:flex;align-items:center;gap:11px;padding:17px 18px;border-bottom:1px solid rgba(255,255,255,.07)}.sidebar-brand__mark{display:grid;place-items:center;width:34px;height:34px;border-radius:7px;background:var(--accent);font-weight:800}.sidebar-brand strong{display:block;font-size:15px}.sidebar-brand small{display:block;color:#858d99;font-size:10px;margin-top:2px}.sidebar-scroll{overflow:auto;padding:10px 0 16px}
.sidebar-accordion{border-bottom:1px solid rgba(255,255,255,.065)}.sidebar-accordion>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 18px;color:#d6dae1;cursor:pointer;user-select:none;transition:.16s}.sidebar-accordion>summary::-webkit-details-marker{display:none}.sidebar-accordion>summary:hover{background:rgba(255,255,255,.04);color:#fff}.sidebar-accordion>summary small{display:block;margin-bottom:2px;color:#707986;font-size:8px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.accordion-chevron{color:#737c89;font-size:15px;transition:transform .18s}.sidebar-accordion[open] .accordion-chevron{transform:rotate(180deg)}.accordion-content{padding:0 18px 15px;animation:accordion-in .18s ease}@keyframes accordion-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.upload-heading-row{display:flex;align-items:center;justify-content:space-between;margin:12px 0 8px}.sidebar-hint{color:#89919d;font-size:9px}.help-button{width:25px;height:25px;padding:0;border:1px solid rgba(255,255,255,.14);border-radius:50%;background:transparent;color:#9fb2f5;font-size:13px;font-weight:800;cursor:pointer}.help-button:hover{background:rgba(255,255,255,.07)}
.garmin-import-flow{padding:12px;border:1px solid rgba(143,166,255,.25);border-radius:7px;background:rgba(78,115,223,.08)}.import-flow-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.import-flow-heading strong{display:block;font-size:11px}.import-flow-heading span{display:block;margin-top:2px;color:#89919d;font-size:8px;text-transform:uppercase;letter-spacing:.08em}.import-steps{list-style:none;margin:11px 0;padding:0;display:grid;gap:9px}.import-steps li{display:grid;grid-template-columns:20px 1fr;gap:8px;align-items:start}.import-steps li>span{display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:rgba(143,166,255,.18);color:#afbeff;font-size:9px;font-weight:800}.import-steps strong{display:block;font-size:9px;color:#f2f4f7}.import-steps small{display:block;margin-top:1px;color:#929aa6;font-size:8px;line-height:1.35}.garmin-connect-button,.downloaded-files-button{display:flex;width:100%;min-height:34px;align-items:center;justify-content:center;border-radius:5px;font-size:9px;font-weight:800;cursor:pointer}.garmin-connect-button{background:var(--accent);color:#fff}.garmin-connect-button:hover{background:var(--accent-dark)}.downloaded-files-button{margin-top:6px;border:1px solid #566071;background:transparent;color:#dce2eb}.downloaded-files-button:hover{background:rgba(255,255,255,.05)}.selected-files{margin-top:7px;color:#9da5b0;font-size:8px;line-height:1.4}.selected-files:not(:empty){padding:7px 8px;border-radius:4px;background:rgba(255,255,255,.04)}
.dropzone{border:1px dashed #59616d;padding:14px 8px;text-align:center;cursor:pointer;border-radius:5px;background:rgba(255,255,255,.015);display:grid;justify-items:center;gap:3px;transition:.18s}.dropzone:hover,.dropzone.dragover{border-color:#7893ef;background:rgba(78,115,223,.08)}.dropzone strong{font-size:11px}.dropzone>span:not(.upload-icon){font-size:9px;color:#858d99}.upload-icon{display:grid;place-items:center;width:28px;height:28px;margin-bottom:2px;border-radius:50%;background:rgba(78,115,223,.14);color:#8fa6ff;font-size:15px;font-weight:700}input[type=file]{display:none}
.sidebar-metrics{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(255,255,255,.075)}.side-metric{padding:10px;background:var(--sidebar);min-width:0}.side-metric--wide{grid-column:1/-1}.side-metric span{display:block;color:#858d99;font-size:8px;text-transform:uppercase;letter-spacing:.04em}.side-metric strong{display:block;margin-top:3px;font-size:16px;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.control-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.control-grid label{display:block;margin:0;color:#aeb5bf;font-size:9px;font-weight:650}.control-grid label>span{float:right;color:#67707d;font-weight:500}.control-grid input[type=number]{width:100%;margin-top:4px;padding:7px 8px;border:1px solid #454c58;border-radius:4px;background:#303540;color:#fff;outline:none}.control-grid input[type=number]:focus{border-color:#7893ef}.range-row{margin-top:10px}.range-head{display:flex;justify-content:space-between;color:#aeb5bf;font-size:9px;font-weight:650}.range-value{color:#9eb2ff;font-weight:800}input[type=range]{width:100%;accent-color:var(--accent)}.action-row{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:9px}.action-row button{margin:0;padding:8px;border:none;border-radius:4px;background:var(--accent);color:#fff;font-size:10px;font-weight:750;cursor:pointer}.action-row .secondary{background:transparent;border:1px solid #4a5260;color:#cfd4dc}.sidebar-status{display:flex;align-items:flex-start;gap:7px;margin:13px 18px 0}.status-dot{width:6px;height:6px;border-radius:50%;background:#7f8794;margin-top:4px;flex:none}.debug{font-size:9px;color:#9da5b0;line-height:1.35}.error{display:none;margin:10px 18px 0;padding:8px;background:rgba(180,35,24,.15);color:#ffd1cc;border-radius:4px;font-size:10px}.privacy-note{margin:6px 18px 0;color:#6f7784;font-size:8px;line-height:1.4}.sidebar-projects-link{margin-top:auto;padding:13px 18px;border-top:1px solid rgba(255,255,255,.07);color:#858d99;font-size:10px}.sidebar-projects-link:hover{color:#fff}
.app-main{min-width:0}.topbar{min-height:68px;background:#fff;border-bottom:1px solid var(--border);padding:12px 20px;display:flex;justify-content:space-between;align-items:center;gap:24px;position:sticky;top:0;z-index:10}.breadcrumb{color:var(--muted);font-size:9px;margin-bottom:3px}.breadcrumb span{margin:0 5px;color:#b1b6bf}.topbar h1{font-size:20px;margin:0;font-weight:680}.topbar p{margin:0;color:var(--muted);font-size:10px;text-align:right;max-width:420px}.workspace{padding:15px 20px 20px}.charts-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.chart-section{min-width:0;background:#fff;border-top:2px solid var(--accent);padding:14px 0 0}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:0 2px 8px;border-bottom:1px solid var(--border);margin-bottom:2px}.section-heading h2{margin:0;font-size:15px;font-weight:680}.panel-kicker{display:block;font-size:8px;color:#969da7;text-transform:uppercase;letter-spacing:.12em;font-weight:800;margin-bottom:2px}.section-caption,.model-summary{color:var(--muted);font-size:9px;text-align:right;max-width:52%}#overlayChart,#modelChart{height:430px}.results-section{margin-top:22px;background:#fff;border-top:1px solid var(--border);padding-top:12px}.compact-heading{margin-bottom:8px}.table-wrap{overflow:auto;max-height:210px;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}table{width:100%;border-collapse:collapse;font-size:10px}th,td{padding:8px 9px;border-bottom:1px solid #eceff3;text-align:left;white-space:nowrap}th{color:#5f6773;font-weight:700;background:#fafbfc;position:sticky;top:0;z-index:1}tbody tr:hover{background:#f5f8ff;cursor:pointer}tbody tr.selected{background:#edf3ff}.badge{display:inline-block;padding:3px 7px;border-radius:999px;font-size:9px;font-weight:700}.badge.high{background:#e7f5ec;color:#277942}.badge.moderate{background:#fff4dc;color:#8a5b00}.badge.low{background:#fdecec;color:#9d2b2b}.badge.na{background:#eef1f4;color:#666}
.tips-modal[hidden]{display:none}.tips-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:18px}.tips-backdrop{position:absolute;inset:0;width:100%;height:100%;margin:0;border:0;border-radius:0;background:rgba(20,25,35,.5);backdrop-filter:blur(2px);cursor:default}.tips-card{position:relative;width:min(690px,calc(100vw - 36px));max-height:min(82vh,720px);overflow:auto;background:#fff;border-radius:8px;box-shadow:0 24px 80px rgba(16,24,40,.28)}.tips-card__header{position:sticky;top:0;background:#fff;padding:18px 22px 14px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:flex-start;z-index:1}.tips-card__header h2{font-size:20px;margin:0}.tips-close{margin:0;width:30px;height:30px;padding:0;border:0;border-radius:50%;background:#f1f3f7;color:#76808d;font-size:22px;line-height:1;cursor:pointer}.tips-card__content{padding:2px 22px 22px}.tips-card__content section{padding:15px 0;border-bottom:1px solid #eef1f4}.tips-card__content section:last-child{border-bottom:0}.tips-card h3{font-size:14px;margin:0 0 8px}.tips-card p,.tips-card li{font-size:12px;line-height:1.55;color:#59616d}.tips-card ol,.tips-card ul{margin:0;padding-left:19px}.tips-card li+li{margin-top:4px}
@media(max-width:1200px){.charts-grid{grid-template-columns:1fr}#overlayChart,#modelChart{height:360px}}
@media(max-width:850px){.app-shell{grid-template-columns:1fr}.app-sidebar{position:static;height:auto}.sidebar-scroll{overflow:visible}.topbar{position:static}.workspace{padding:14px}.sidebar-projects-link{display:block}.sidebar-metrics{grid-template-columns:repeat(5,minmax(0,1fr))}.side-metric--wide{grid-column:auto}.garmin-import-flow{padding:14px}.garmin-connect-button,.downloaded-files-button{min-height:42px;font-size:11px}.import-steps strong{font-size:10px}.import-steps small{font-size:9px}}
@media(max-width:650px){.sidebar-metrics{grid-template-columns:1fr 1fr}.side-metric--wide{grid-column:1/-1}.topbar{align-items:flex-start;flex-direction:column;gap:5px}.topbar p{text-align:left}.section-heading{align-items:flex-start;flex-direction:column}.section-caption,.model-summary{max-width:none;text-align:left}#overlayChart,#modelChart{height:310px}.tips-card{width:calc(100vw - 22px);max-height:88vh}.tips-card__header,.tips-card__content{padding-left:16px;padding-right:16px}}