/*
 * Self-hosted Latin subsets downloaded from the official Google Fonts
 * distribution. See fonts/*-OFL.txt for the applicable SIL Open Font License.
 * Keeping these assets local makes the app usable without third-party font
 * requests and keeps the Worker CSP limited to same-origin resources.
 */
@font-face { font-family: 'DM Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/dm-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'DM Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('/fonts/dm-mono-500.woff2') format('woff2'); }
@font-face { font-family: 'DM Sans'; font-style: normal; font-weight: 400 700; font-display: swap; src: url('/fonts/dm-sans-latin.woff2') format('woff2'); }
@font-face { font-family: 'Fraunces'; font-style: normal; font-weight: 600 700; font-display: swap; src: url('/fonts/fraunces-600-latin.woff2') format('woff2'); }

:root {
  --paper: #f5f0e7; --paper2: #ebe3d6; --ink: #202722; --muted: #606a62;
  --line: #d6cec1; --green: #174c3a; --green2: #2b7452; --lime: #b8d979;
  --orange: #b55a2b; --white: #fffdf8; --shadow: 0 6px 24px rgba(40,37,27,.04);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 20px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.5 'DM Sans', sans-serif; }
button, input, select { font: inherit; }
button, summary { cursor: pointer; }
a { color: var(--green); }
button:disabled { opacity: .45; cursor: default; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
input, select { width: 100%; min-width: 0; height: 44px; border: 1px solid var(--line); border-radius: 3px; background: var(--paper); color: var(--ink); padding: 0 11px; }
input[aria-invalid=true], select[aria-invalid=true] { border-color: var(--orange); }
button { touch-action: manipulation; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; top: -80px; left: 20px; background: var(--white); padding: 12px; z-index: 10; }
.skip-link:focus { top: 10px; }
.topbar { height: 60px; padding: 0 max(24px, calc((100vw - 1144px)/2)); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); gap: 12px; }
.wordmark { color: var(--ink); font-size: 11px; letter-spacing: .12em; text-decoration: none; font-weight: 700; white-space: nowrap; }
.wordmark span { font-size: 16px; letter-spacing: .04em; }
.wordmark i { color: var(--orange); font-style: normal; margin: 0 6px; }
.snapshot-badge { font: 11px 'DM Mono', monospace; color: var(--muted); }
main { max-width: 1200px; margin: auto; padding: 0 28px 60px; }
.hero { display: flex; align-items: center; justify-content: space-between; padding: 25px 0; gap: 20px; }
.eyebrow { font: 10px 'DM Mono', monospace; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; }
.hero h1 { font-size: clamp(28px, 3.5vw, 43px); line-height: 1.13; letter-spacing: -.045em; margin: 0 0 8px; }
.hero h1 em { font-family: Fraunces, serif; color: var(--green); font-weight: 600; }
.lede { color: var(--muted); margin: 0; font-size: 14px; }
.hero-mark { flex-shrink: 0; height: 82px; width: 82px; display: grid; place-items: center; border: 1px solid var(--green); border-radius: 50%; color: var(--green); font-size: 58px; line-height: 1; }
.panel { background: var(--white); border: 1px solid var(--line); border-radius: 5px; box-shadow: var(--shadow); }
.control-row { display: grid; grid-template-columns: 215px minmax(0,1fr) auto; gap: 20px; padding: 14px 18px; align-items: end; }
.control-group label { display: block; font: 10px 'DM Mono', monospace; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 6px; }
.search-wrap { position: relative; }
.search-results { position: absolute; z-index: 5; left: 0; right: 0; top: calc(100% + 4px); background: var(--white); border: 1px solid var(--line); border-radius: 3px; box-shadow: 0 6px 20px #20272220; max-height: 265px; overflow: auto; }
.result-item { min-height: 44px; padding: 10px 12px; display: flex; align-items: center; justify-content: space-between; gap: 14px; cursor: pointer; }
.result-item:hover, .result-item[aria-selected=true] { background: var(--paper2); }
.result-item small { color: var(--muted); font-size: 11px; flex-shrink: 0; }
.search-empty { padding: 14px; color: var(--muted); font-size: 13px; }
.mode-switch { display: flex; border: 1px solid var(--line); height: 44px; border-radius: 3px; overflow: hidden; }
.mode-btn { border: 0; background: transparent; padding: 0 17px; color: var(--muted); font-size: 13px; }
.mode-btn.is-active { background: var(--green); color: white; }
.mode-btn:focus-visible { outline-offset: -4px; outline-color: var(--orange); }
body[data-mode=manual] .control-row { grid-template-columns: minmax(180px, 1fr) auto; }
.runner-strip { display: flex; justify-content: space-between; align-items: center; padding: 18px 2px; gap: 16px; }
.runner-identity { display: flex; gap: 12px; align-items: center; min-width: 0; }
.runner-avatar { height: 38px; width: 38px; flex-shrink: 0; border-radius: 50%; display: grid; place-items: center; background: var(--green); color: var(--lime); font: 16px Fraunces, serif; }
.runner-identity h2 { font: 22px Fraunces, serif; margin: 0; overflow-wrap: anywhere; }
.runner-identity p { margin: 2px 0 0; font-size: 12px; color: var(--muted); }
.progress-note { width: 195px; flex-shrink: 0; font: 10px 'DM Mono', monospace; color: var(--muted); text-align: right; }
.progress-track { height: 4px; background: var(--line); margin-top: 8px; border-radius: 2px; overflow: hidden; }
.progress-track i { height: 100%; display: block; background: var(--green2); transition: width .25s; }
.forecast-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 18px; margin-bottom: 22px; }
.forecast-main, .next-card { padding: 24px; min-width: 0; }
.forecast-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.forecast-header h2 { font: 25px Fraunces, serif; margin: 0; }
.confidence-pill { flex-shrink: 0; font: 10px 'DM Mono', monospace; color: var(--green); background: var(--paper2); border-radius: 3px; padding: 6px 8px; }
.finish-readout { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin: 19px 0 9px; }
.label { display: block; color: var(--muted); font: 10px 'DM Mono', monospace; margin-bottom: 6px; }
.finish-readout strong { display: block; font: 50px/1.08 Fraunces, serif; letter-spacing: -.035em; color: var(--green); }
.clock-readout { text-align: right; padding-bottom: 3px; }
#finish-clock { display: block; font: 20px Fraunces, serif; }
.window { font: 12px/1.5 'DM Mono', monospace; color: var(--muted); margin: 9px 0; }
.stage-accuracy { font-size: 12px; color: var(--muted); padding-top: 9px; margin: 9px 0 14px; border-top: 1px solid var(--line); }
.replay-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); min-height: 44px; border-radius: 3px; padding: 8px 14px; background: transparent; color: var(--ink); font-size: 12px; font-weight: 600; text-decoration: none; }
.button-primary { background: var(--green); color: white; border-color: var(--green); }
.button-primary:hover { background: #103d2e; }
.button-secondary { color: var(--green); border-color: var(--green); }
.button-quiet { color: var(--muted); }
.callout { font-size: 12px; color: var(--muted); margin: 10px 0 0; }
#persistence-status:empty { margin: 0; }
.warning, .field-error { color: #9c4124; }
.next-card { background: #edf1e6; border-color: #cbd4bf; }
.next-card h3 { font: 28px/1.2 Fraunces, serif; margin: 10px 0 16px; color: var(--green); }
.next-time { padding-top: 12px; border-top: 1px solid #cbd4bf; }
#next-clock { display: block; font: 28px Fraunces, serif; }
#next-time { display: block; margin-top: 4px; font: 12px 'DM Mono', monospace; color: var(--muted); }
.next-leg { font-weight: 600; margin: 17px 0 5px; color: var(--green); }
.next-leg:empty { display: none; }
.next-card .muted { font-size: 12px; margin: 5px 0 0; }
.muted { color: var(--muted); }
.mode-panel, .chart-panel, .history-panel, .table-panel, .validation-panel { padding: 24px; margin-bottom: 22px; min-width: 0; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
.section-head h2, .validation-panel h2 { font: 25px Fraunces, serif; margin: 0; }
.intro { font-size: 13px; max-width: 650px; margin: 13px 0 20px; }
.start-control { max-width: 380px; }
.start-control > label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.start-control > label span { display: block; font-size: 11px; color: var(--muted); font-weight: 400; }
.start-control .muted { font-size: 11px; margin: 6px 0; }
.start-control input { background: var(--white); }
.manual-rows { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 20px 0 14px; }
.manual-row { display: grid; grid-template-columns: minmax(0, 1fr) 44px; gap: 12px; padding: 14px; background: var(--paper); border-radius: 4px; align-items: start; }
.checkpoint-field, .elapsed-fields { grid-column: 1; min-width: 0; }
.checkpoint-field > label, .elapsed-fields legend { font-weight: 600; font-size: 12px; margin-bottom: 5px; padding: 0; }
.checkpoint-field > label { display: block; }
.manual-row select, .manual-row input { background: var(--white); }
.elapsed-fields { border: 0; margin: 0; padding: 0; }
.time-parts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.time-parts label span { display: block; color: var(--muted); font-size: 10px; margin-bottom: 4px; }
.time-parts input { font: 16px 'DM Mono', monospace; padding: 0 8px; }
.remove-row { grid-column: 2; grid-row: 1; width: 44px; height: 44px; margin-top: 23px; border: 1px solid var(--line); border-radius: 3px; background: transparent; color: var(--muted); font-size: 22px; }
.field-error { font-size: 12px; margin: 6px 0 0; }
.field-error:empty { display: none; }
.back-to-forecast { display: inline-block; padding: 10px 0; font-size: 12px; }
.chart-hint { font-size: 12px; color: var(--muted); margin: 0; }
.chart-wrap { padding: 18px 0 6px; }
.chart-wrap svg { display: block; width: 100%; height: auto; overflow: visible; }
.forecast-marker { cursor: pointer; }
.forecast-marker:focus-visible { outline: none; }
.forecast-marker:focus-visible circle:last-child { stroke: var(--ink); stroke-width: 4px; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 12px 20px; color: var(--muted); font: 11px 'DM Mono', monospace; }
.chart-legend span { display: flex; align-items: center; gap: 6px; }
.legend-line { height: 3px; width: 18px; background: var(--green); }
.legend-dashed { height: 0; width: 18px; border-top: 3px dashed var(--green); }
.legend-band { height: 10px; width: 18px; background: #b8d97970; }
.legend-next { height: 10px; width: 10px; background: var(--green); border: 2px solid #d77f4d; border-radius: 50%; }
.chart-detail { background: var(--paper); border-left: 3px solid var(--green); padding: 12px 14px; margin: 18px 0 0; min-height: 45px; font-size: 13px; }
.forecast-details { margin-top: 16px; color: var(--muted); font-size: 12px; }
summary { min-height: 32px; padding: 5px 0; }
.forecast-details p { margin: 8px 0 0; max-width: 750px; }
.history-badge { color: var(--muted); font: 10px 'DM Mono', monospace; }
.forecast-change { color: var(--green); margin: 16px 0 10px; font-weight: 600; }
.history-panel summary { font-size: 13px; }
.forecast-history { list-style: none; padding: 0; margin: 10px 0; }
.forecast-history li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 5px 16px; border-top: 1px solid var(--line); padding: 12px 0; font-size: 13px; }
.forecast-history strong, .forecast-history span { display: block; }
.forecast-history span { font-size: 11px; color: var(--muted); }
.forecast-history p { grid-column: 1 / -1; margin: 0; font-size: 12px; color: var(--muted); }
.history-estimate { text-align: right; }
.history-estimate strong { font: 20px Fraunces, serif; color: var(--green); }
.history-note { margin: 10px 0 0; font-size: 12px; }
.fatigue-panel { display: grid; grid-template-columns: 1.25fr .7fr 1fr; gap: 24px; align-items: center; padding: 24px; margin-bottom: 22px; }
.fatigue-copy h2 { font: 25px Fraunces, serif; margin: 0 0 8px; color: var(--green); }
.fatigue-copy p { font-size: 13px; margin: 0; }
.fatigue-copy .eyebrow { font-size: 10px; margin-bottom: 8px; }
.fatigue-note { font-size: 11px !important; color: var(--muted); margin-top: 10px !important; }
.fatigue-value, .fatigue-bars { border-left: 1px solid var(--line); padding-left: 24px; min-width: 0; }
.fatigue-value strong { display: block; font: 40px/1 Fraunces, serif; color: var(--green); }
.fatigue-value span { font-size: 11px; color: var(--orange); display: block; margin-top: 8px; }
.bar-row { display: grid; grid-template-columns: 83px minmax(10px, 1fr) 40px; gap: 8px; align-items: center; font: 10px 'DM Mono', monospace; color: var(--muted); margin: 10px 0; }
.bar-row b { font-weight: 400; text-align: right; }
.meter { height: 7px; background: var(--paper2); border-radius: 10px; overflow: hidden; }
.meter i { height: 100%; display: block; background: var(--green2); transition: width .25s; }
.table-actions { display: flex; gap: 8px; }
.table-scroll { overflow-x: auto; margin-top: 18px; }
table { width: 100%; border-collapse: collapse; min-width: 780px; font-size: 13px; }
thead th { text-align: left; color: var(--muted); font: 10px 'DM Mono', monospace; text-transform: uppercase; letter-spacing: .05em; padding: 0 10px 12px; border-bottom: 1px solid var(--line); }
tbody td, tbody th { padding: 12px 10px; border-bottom: 1px solid var(--line); text-align: left; }
tbody th { font-weight: 600; }
tbody th small { display: block; font-size: 10px; color: var(--muted); font-weight: 400; }
.status { color: var(--green2); font: 11px 'DM Mono', monospace; }
.status.estimated { color: var(--orange); }
.validation-panel h2 { margin-bottom: 20px; }
.validation-stats { display: flex; gap: 24px; align-items: center; }
.validation-stats > div { flex: 1; }
.validation-stats strong { font: 34px Fraunces, serif; color: var(--green); display: block; }
.validation-stats span { font-size: 12px; color: var(--muted); }
.validation-arrow { font-size: 28px !important; }
.validation-panel p:not(.eyebrow) { font-size: 13px; color: var(--muted); }
.validation-caveat { border-top: 1px solid var(--line); padding-top: 14px; font-size: 11px !important; margin-bottom: 0; }
.info-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.info-card { padding: 18px; border-top: 2px solid var(--green); }
.info-number { font: 11px 'DM Mono', monospace; color: var(--orange); }
.info-card h3 { font: 19px Fraunces, serif; margin: 14px 0 8px; }
.info-card p { color: var(--muted); font-size: 13px; margin: 0; }
footer { border-top: 1px solid var(--line); padding: 22px max(24px, calc((100vw - 1144px)/2)); display: flex; gap: 16px; justify-content: space-between; color: var(--muted); font: 10px 'DM Mono', monospace; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { text-decoration: underline; }
.toast { position: fixed; bottom: 20px; right: 20px; max-width: calc(100vw - 40px); background: var(--green); color: white; padding: 12px 16px; font-size: 12px; border-radius: 3px; opacity: 0; transform: translateY(100px); transition: .2s; z-index: 6; pointer-events: none; }
.toast.show { transform: none; opacity: 1; }
.load-error { padding: 30px; margin-top: 30px; }
@media (max-width: 900px) {
  .forecast-layout { grid-template-columns: minmax(0, 1fr) 270px; }
  .finish-readout { flex-wrap: wrap; gap: 12px; }
  .clock-readout { text-align: left; }
  .fatigue-panel { grid-template-columns: 1fr 1fr; }
  .fatigue-copy { grid-column: 1 / -1; }
  .fatigue-value { border-left: 0; padding-left: 0; }
}
@media (max-width: 760px) {
  main { padding: 0 16px 40px; }
  .topbar { height: 52px; padding: 0 16px; }
  .snapshot-badge { font-size: 9px; text-align: right; }
  .wordmark { font-size: 9px; letter-spacing: .06em; }
  .wordmark span { font-size: 14px; }
  .hero { padding: 17px 0; }
  .hero .eyebrow { font-size: 9px; margin-bottom: 6px; }
  .hero h1 { font-size: 28px; margin-bottom: 6px; }
  .lede { font-size: 12px; }
  .hero-mark { display: none; }
  .control-row, body[data-mode=manual] .control-row { grid-template-columns: minmax(0, 1fr) auto; padding: 12px; gap: 10px; }
  .race-control { grid-column: 1; grid-row: 1; }
  .runner-control { grid-column: 1 / -1; grid-row: 2; }
  .mode-switch { grid-column: 2; grid-row: 1; }
  .mode-btn { padding: 0 11px; font-size: 12px; }
  select, input { font-size: 16px; }
  #race-select { font-size: 13px; padding: 0 7px; }
  .runner-strip { padding: 13px 0; gap: 10px; }
  .runner-identity { gap: 9px; }
  .runner-avatar { width: 32px; height: 32px; font-size: 13px; }
  .runner-identity h2 { font-size: 18px; }
  .runner-identity p { font-size: 10px; }
  .progress-note { width: 85px; font-size: 9px; }
  .forecast-layout { grid-template-columns: minmax(0,1fr); gap: 12px; margin-bottom: 16px; }
  .forecast-main, .next-card { padding: 18px; }
  .forecast-header h2 { font-size: 23px; }
  .confidence-pill { font-size: 9px; }
  .finish-readout { flex-wrap: nowrap; gap: 12px; margin-top: 16px; }
  .finish-readout strong { font-size: 40px; }
  .clock-readout { text-align: right; max-width: 125px; }
  #finish-clock { font-size: 18px; }
  .label { font-size: 9px; }
  .window { font-size: 11px; }
  .stage-accuracy { font-size: 11px; margin-bottom: 12px; }
  .replay-actions .button { padding: 8px 11px; font-size: 11px; }
  .callout { font-size: 11px; }
  .next-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; }
  .next-card .eyebrow { grid-column: 1; margin: 0; }
  .next-card h3 { grid-column: 1; font-size: 22px; margin: 0; }
  .next-time { grid-column: 2; grid-row: 1 / 3; border: 0; padding: 0; text-align: right; max-width: 150px; }
  #next-clock { font-size: 22px; }
  #next-time { font-size: 10px; }
  .next-leg { grid-column: 1 / -1; margin: 8px 0 0; font-size: 13px; }
  .next-card .muted { grid-column: 1 / -1; font-size: 11px; margin: 0; }
  .mode-panel, .chart-panel, .history-panel, .table-panel, .validation-panel { padding: 18px; margin-bottom: 16px; }
  .section-head { flex-wrap: wrap; gap: 10px; }
  .section-head h2, .validation-panel h2 { font-size: 23px; }
  .chart-hint { font-size: 11px; }
  .manual-rows { grid-template-columns: minmax(0,1fr); }
  .manual-row { padding: 12px; }
  .manual-row select { font-size: 14px; }
  .chart-legend { font-size: 10px; gap: 10px 16px; }
  .chart-detail { font-size: 12px; padding: 10px; }
  .history-badge { font-size: 9px; }
  .forecast-change { font-size: 14px; }
  .fatigue-panel { grid-template-columns: minmax(0,1fr); padding: 18px; gap: 16px; margin-bottom: 16px; }
  .fatigue-value, .fatigue-bars { border-left: 0; border-top: 1px solid var(--line); padding: 16px 0 0; }
  .fatigue-value strong { font-size: 34px; }
  .validation-stats { flex-wrap: wrap; gap: 14px; }
  .validation-stats > div { min-width: 90px; }
  .validation-stats strong { font-size: 27px; }
  .info-grid { grid-template-columns: minmax(0,1fr); gap: 8px; }
  .info-card { padding: 16px 4px; }
  footer { padding: 20px 16px; flex-direction: column; line-height: 1.6; }
}
@media (max-width: 360px) {
  .hero h1 { font-size: 25px; }
  .mode-btn { padding: 0 8px; }
  .finish-readout strong { font-size: 34px; }
  #finish-clock { font-size: 16px; }
  .forecast-header { gap: 6px; }
  .forecast-header h2 { font-size: 21px; }
  .next-time { max-width: 116px; }
  .next-card h3, #next-clock { font-size: 20px; }
  .manual-row { grid-template-columns: minmax(0,1fr) 36px; gap: 8px; padding: 9px; }
  .remove-row { width: 36px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}