/* ============================================================================
   Run: James's marathon coach. Made for an iPhone first.

   Shares JC OS's visual language on purpose: a cool grey canvas, white panels with a soft
   shadow, one cyan accent (marks and fills only; text that must be read uses --accent-text),
   heavy tabular numerals under small uppercase labels. Follows the phone's light or dark
   setting; dark is its own set of steps, not an inversion.
   ========================================================================== */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/InterVariable.woff2") format("woff2");
}

:root {
  --font: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --bg: #F4F6FA;
  --surface: #FFFFFF;
  --surface-2: #FAFBFE;
  --surface-3: #EDF0F6;
  --input: #FCFCFD;
  --rule: #E6E9F2;
  --rule-strong: #D3D9E6;
  --ink: #111827;
  --ink-2: #374151;
  --ink-3: #6B7280;
  --ink-4: #9AA3B2;
  --accent: #25CDD6;
  --accent-ink: #0B1215;
  --accent-text: #0A7C85;
  --accent-soft: rgba(37, 205, 214, 0.14);
  --accent-ring: rgba(37, 205, 214, 0.25);
  --violet: #5B4CF5; --violet-soft: #EEF0FF;
  --green: #0E8A5F;  --green-soft: #E8F6EF;
  --amber: #A8620A;  --amber-soft: #FDF3E1;
  --orange: #B4530A; --orange-soft: #FDF0E5;
  --red: #B3261E;    --red-soft: #FDF1F0;
  --series-1: #0E9AA7;
  --series-2: #5B4CF5;
  --series-3: #C2620E;
  --grid: #E6E9F2;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 2px 8px -2px rgba(16, 24, 40, 0.06);
  --tabbar: 64px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0D1114;
    --surface: #151C21;
    --surface-2: #1A2329;
    --surface-3: #222D35;
    --input: #10161A;
    --rule: rgba(255, 255, 255, 0.08);
    --rule-strong: rgba(255, 255, 255, 0.16);
    --ink: #EEF3F6;
    --ink-2: #BAC6CE;
    --ink-3: #8696A2;
    --ink-4: #586672;
    --accent-text: #56DCE4;
    --accent-soft: rgba(37, 205, 214, 0.16);
    --accent-ring: rgba(37, 205, 214, 0.32);
    --violet: #A59CFF; --violet-soft: rgba(165, 156, 255, 0.16);
    --green: #4CC79A;  --green-soft: rgba(76, 199, 154, 0.15);
    --amber: #E5AE55;  --amber-soft: rgba(229, 174, 85, 0.15);
    --orange: #F0934F; --orange-soft: rgba(240, 147, 79, 0.15);
    --red: #F0776F;    --red-soft: rgba(240, 119, 111, 0.15);
    --series-1: #19A8B2;
    --series-2: #867AFA;
    --series-3: #D4742B;
    --grid: rgba(255, 255, 255, 0.09);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font);
  font-size: 15px; line-height: 1.5; -webkit-font-smoothing: antialiased;
  font-feature-settings: "cv11", "ss01";
}
body.signed-in { padding-bottom: calc(var(--tabbar) + var(--safe-b) + 16px); }
a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0 0 8px; line-height: 1.2; letter-spacing: -0.015em; }
h1 { font-size: 26px; font-weight: 750; }
h2 { font-size: 17px; font-weight: 700; }
h3 { font-size: 15px; font-weight: 700; }
p { margin: 0 0 10px; }
ul, ol { margin: 0 0 10px; padding-left: 20px; }
li { margin: 3px 0; }
.lede { color: var(--ink-2); font-size: 15.5px; }
.muted { color: var(--ink-3); }
.small { font-size: 13px; }
.num, .tnum { font-variant-numeric: tabular-nums; }
.icon { flex: none; display: block; }
:focus-visible { outline: 3px solid var(--accent-ring); outline-offset: 2px; border-radius: 6px; }
.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; }

/* ---------------------------------------------------------------- frame */

.top {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 12px;
  padding: calc(env(safe-area-inset-top, 0px) + 10px) 16px 10px;
  background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--rule);
}
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 17px; color: var(--ink); letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); display: inline-flex; align-items: center; justify-content: center; }
.tabs-top { display: none; }
.top-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.race-chip { font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-text); font-variant-numeric: tabular-nums; }
.icon-btn { width: 36px; height: 36px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; color: var(--ink-3); }
.icon-btn:hover, .icon-btn.is-on { background: var(--surface-3); color: var(--ink); text-decoration: none; }

.tabs-bottom {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; display: grid; grid-template-columns: repeat(5, 1fr);
  height: calc(var(--tabbar) + var(--safe-b)); padding-bottom: var(--safe-b);
  background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: saturate(1.4) blur(16px); -webkit-backdrop-filter: saturate(1.4) blur(16px);
  border-top: 1px solid var(--rule);
}
.tabs-bottom .tab { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; color: var(--ink-3); font-size: 11px; font-weight: 600; }
.tabs-bottom .tab:hover { text-decoration: none; color: var(--ink); }
.tabs-bottom .tab.is-on { color: var(--accent-text); }

.page { max-width: 760px; margin: 0 auto; padding: 16px 16px 24px; }
.page.is-plain { padding-top: 48px; }
.foot { text-align: center; color: var(--ink-4); font-size: 12px; padding: 8px 16px 20px; }
.back { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 600; margin-bottom: 10px; color: var(--ink-3); }

@media (min-width: 900px) {
  body.signed-in { padding-bottom: 24px; }
  .tabs-bottom { display: none; }
  .tabs-top { display: flex; gap: 4px; margin-left: 18px; }
  .tabs-top .tab { padding: 7px 12px; border-radius: 9px; color: var(--ink-3); font-weight: 600; font-size: 14px; }
  .tabs-top .tab:hover { background: var(--surface-3); color: var(--ink); text-decoration: none; }
  .tabs-top .tab.is-on { background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }
  .page { padding-top: 24px; }
}

/* ---------------------------------------------------------------- pieces */

.page-head { margin: 4px 0 14px; }
.page-head h1 { margin-bottom: 4px; }
.eyebrow { font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 4px; }
.stack > * + * { margin-top: 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
@media (max-width: 420px) { .grid-3 { grid-template-columns: 1fr 1fr; } }

.card { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; margin-bottom: 12px; }
.card.is-accent { border-color: color-mix(in srgb, var(--accent) 45%, var(--rule)); box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow); }
.card.is-warn { border-color: color-mix(in srgb, var(--amber) 45%, var(--rule)); background: color-mix(in srgb, var(--amber-soft) 50%, var(--surface)); }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.card-head h2 { margin: 0; }
.card > :last-child { margin-bottom: 0; }

.stat { display: flex; flex-direction: column; gap: 1px; padding: 10px 12px; border-radius: 11px; background: var(--surface-2); border: 1px solid var(--rule); min-width: 0; }
.stat-label { font-size: 10.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.stat-value { font-size: 21px; font-weight: 780; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; line-height: 1.15; overflow-wrap: anywhere; }
.stat-note { font-size: 12px; color: var(--ink-3); }

.pill { display: inline-flex; align-items: center; gap: 4px; font-size: 11.5px; font-weight: 650; padding: 2px 9px; border-radius: 999px; background: var(--surface-3); color: var(--ink-2); white-space: nowrap; }
.pill.t-accent { background: var(--accent-soft); color: var(--accent-text); }
.pill.t-green { background: var(--green-soft); color: var(--green); }
.pill.t-amber { background: var(--amber-soft); color: var(--amber); }
.pill.t-red { background: var(--red-soft); color: var(--red); }
.pill.t-violet { background: var(--violet-soft); color: var(--violet); }

.kv { display: grid; gap: 6px; margin: 0 0 10px; }
.kv > div { display: grid; grid-template-columns: minmax(110px, 38%) 1fr; gap: 10px; }
.kv dt { color: var(--ink-3); font-size: 13.5px; }
.kv dd { margin: 0; font-weight: 550; font-variant-numeric: tabular-nums; }

.flash { padding: 10px 14px; border-radius: 11px; margin-bottom: 12px; background: var(--green-soft); color: var(--green); font-weight: 600; font-size: 14px; }
.flash.is-error { background: var(--red-soft); color: var(--red); }

.empty { text-align: center; padding: 18px 8px; color: var(--ink-3); }
.empty-title { font-weight: 700; color: var(--ink-2); margin-bottom: 4px; }

.fold { border-top: 1px solid var(--rule); }
.fold:first-child { border-top: 0; }
.fold > summary { cursor: pointer; list-style: none; padding: 11px 0; font-weight: 650; display: flex; align-items: center; gap: 8px; }
.fold > summary::-webkit-details-marker { display: none; }
.fold > summary::before { content: "›"; display: inline-block; width: 12px; color: var(--ink-3); transition: transform 0.15s var(--ease); }
.fold[open] > summary::before { transform: rotate(90deg); }
.fold-body { padding: 0 0 12px; }

/* ---------------------------------------------------------------- forms */

.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.field-label { font-size: 12px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-3); }
.hint { font-size: 12.5px; color: var(--ink-3); }
.input, .select, .textarea {
  width: 100%; font: inherit; font-size: 16px; /* 16px stops iOS zooming in */
  padding: 10px 12px; border-radius: var(--radius-sm); border: 1px solid var(--rule-strong); background: var(--input); color: var(--ink);
}
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.textarea { resize: vertical; }
.check { display: flex; align-items: center; gap: 10px; padding: 6px 0; font-weight: 550; }
.check input { width: 20px; height: 20px; accent-color: var(--accent-text); }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg-item input { position: absolute; opacity: 0; pointer-events: none; }
.seg-item span { display: inline-block; padding: 8px 12px; border-radius: 10px; border: 1px solid var(--rule-strong); background: var(--surface); font-weight: 600; font-size: 14px; cursor: pointer; }
.seg-item input:checked + span { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-text); }
.seg-item input:focus-visible + span { outline: 3px solid var(--accent-ring); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 380px) { .form-row { grid-template-columns: 1fr; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; font: inherit; font-weight: 650; font-size: 15px;
  padding: 10px 16px; min-height: 44px; border-radius: 11px; border: 1px solid var(--rule-strong); background: var(--surface); color: var(--ink); cursor: pointer;
}
.btn:hover { text-decoration: none; background: var(--surface-2); }
.btn.is-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.is-primary:hover { filter: brightness(1.05); }
.btn.is-ghost { background: transparent; border-color: transparent; color: var(--accent-text); }
.btn.is-danger { color: var(--red); }
.btn.is-sm { min-height: 34px; padding: 6px 12px; font-size: 13.5px; border-radius: 9px; }
form.inline { display: inline; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

/* ---------------------------------------------------------------- sign in */

.auth { max-width: 380px; margin: 0 auto; }
.auth-mark { width: 44px; height: 44px; border-radius: 12px; background: var(--accent); color: var(--accent-ink); font-weight: 850; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; font-size: 14px; }
.auth .btn { width: 100%; }

/* ---------------------------------------------------------------- tables and lists */

.list { display: flex; flex-direction: column; }
.list-row { display: flex; align-items: center; gap: 12px; padding: 11px 0; border-top: 1px solid var(--rule); }
.list-row:first-child { border-top: 0; }
.list-row .grow { flex: 1; min-width: 0; }
.list-row .title { font-weight: 650; }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); font-weight: 700; padding: 6px 8px; border-bottom: 1px solid var(--rule); }
.table td { padding: 8px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table tr:last-child td { border-bottom: 0; }

/* charts are drawn as SVG by the server */
.chart { width: 100%; height: auto; display: block; }
.chart text { fill: var(--ink-3); font-size: 10px; font-family: var(--font); }
.chart .grid { stroke: var(--grid); stroke-width: 1; }
.chart .s1 { stroke: var(--series-1); fill: none; stroke-width: 2; }
.chart .s2 { stroke: var(--series-2); fill: none; stroke-width: 2; }
.chart .b1 { fill: var(--series-1); }
.chart .b2 { fill: var(--series-2); }
.chart .b-plan { fill: var(--surface-3); }
.chart .dot1 { fill: var(--series-1); stroke: var(--surface); stroke-width: 2; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--ink-2); margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }

/* ---------------------------------------------------------------- settings */
.section-title { font-size: 12px; font-weight: 750; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3); margin: 22px 2px 8px; }
.title-line { font-weight: 650; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.days { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.day-row { display: grid; grid-template-columns: 86px 1fr 104px; gap: 8px; align-items: center; }
.day-name { font-weight: 600; font-size: 14px; }
@media (max-width: 380px) { .day-row { grid-template-columns: 1fr 1fr; } .day-name { grid-column: 1 / -1; } }
.steps { padding-left: 18px; }
.steps li { margin: 6px 0; }
code, .copy { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 12.5px; background: var(--surface-3); padding: 2px 6px; border-radius: 6px; overflow-wrap: anywhere; word-break: break-all; }
.list-row .actions { margin-top: 8px; }