:root {
  --bg: #f3f8fb;
  --card: #ffffff;
  --ink: #10222f;
  --muted: #587083;
  --line: #d6e3ec;
  --accent: #0b6aa8;
  --accent-ink: #ffffff;
  --accent-soft: #e0f0fa;
  --warn: #8a5a00;
  --warn-bg: #fff4d6;
  --err: #9b1c1c;
  --err-bg: #fde8e8;
  --workout: #d9622b;
  --long: #0f766e;
  --race: #6d3fc0;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1822;
    --card: #112431;
    --ink: #e6f1f7;
    --muted: #94adbd;
    --line: #1f3b4d;
    --accent: #4fb3f0;
    --accent-ink: #04121c;
    --accent-soft: #14384f;
    --warn: #f2c14e;
    --warn-bg: #3a2f10;
    --err: #ff9b9b;
    --err-bg: #3b1818;
    --workout: #fb923c;
    --long: #4fd1c5;
    --race: #b69cff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 920px; margin: 0 auto; padding: 0 16px; }
.top { background: linear-gradient(135deg, #08487a 0%, #0b6aa8 55%, #2a9bd6 100%); color: #ffffff; padding: 28px 0 24px; }
.top h1 { margin: 0 0 4px; font-size: 1.75rem; letter-spacing: -0.01em; display: flex; align-items: center; gap: 12px; }
.top .logo { border-radius: 8px; background: #fff; padding: 2px; }
.sub { margin: 0; opacity: 0.92; max-width: 60ch; }
main { padding-top: 20px; padding-bottom: 32px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; }
.card h2 { margin: 0 0 12px; font-size: 1.1rem; display: flex; align-items: center; gap: 10px; }
.n { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-size: 0.85rem; }
.note { color: var(--muted); margin: 0 0 12px; font-size: 0.95rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
label { display: flex; flex-direction: column; gap: 4px; font-weight: 600; font-size: 0.92rem; }
label.inline { margin-top: 14px; max-width: 320px; }
input, select {
  font: inherit; font-weight: 400; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; min-height: 44px; width: 100%;
}
input:focus, select:focus, button:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 1px; }
.hint { color: var(--muted); font-weight: 400; font-size: 0.8rem; }
fieldset { border: 0; padding: 0; margin: 14px 0 0; }
legend { font-weight: 600; font-size: 0.92rem; padding: 0; margin-bottom: 6px; }
.days { display: flex; flex-wrap: wrap; gap: 8px; }
.days label { flex-direction: row; align-items: center; gap: 6px; font-weight: 500; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; background: var(--bg); min-height: 40px; }
.days label:has(input:checked) { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.days input { width: auto; min-height: 0; margin: 0; accent-color: var(--accent); }

.race-row { display: grid; grid-template-columns: 1.1fr 1fr 1fr 0.8fr auto; gap: 10px; align-items: end; margin-bottom: 10px; }
.race-row .x { min-height: 44px; }
@media (max-width: 640px) { .race-row { grid-template-columns: 1fr 1fr; } }

button { font: inherit; font-weight: 600; border-radius: 8px; padding: 10px 16px; min-height: 44px; cursor: pointer; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); padding: 12px 24px; }
button.ghost { background: transparent; }
button:hover { filter: brightness(0.96); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }

.msg { border-radius: var(--radius); padding: 12px 16px; margin-bottom: 10px; }
.msg ul { margin: 0; padding-left: 20px; }
.msg.err { background: var(--err-bg); color: var(--err); }
.msg.warn { background: var(--warn-bg); color: var(--warn); }
.msg strong { display: block; margin-bottom: 4px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.stat b { display: block; font-size: 1.35rem; letter-spacing: -0.01em; }
.stat span { color: var(--muted); font-size: 0.82rem; }

.card h3 { margin: 0 0 8px; font-size: 1rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.scroll { overflow-x: auto; }

.chart { width: 100%; height: auto; display: block; }
.chart .bar { fill: var(--accent); }
.chart .bar.cut { fill: var(--muted); opacity: 0.55; }
.chart .bar.taper { fill: var(--long); opacity: 0.7; }
.chart .bar.race { fill: var(--race); }
.chart text { fill: var(--muted); font-size: 10px; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 0.8rem; color: var(--muted); margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }

details.week { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; }
details.week > summary { cursor: pointer; padding: 12px 16px; list-style: none; display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: baseline; }
details.week > summary::-webkit-details-marker { display: none; }
details.week > summary::before { content: "▸"; color: var(--muted); }
details.week[open] > summary::before { content: "▾"; }
.wk-title { font-weight: 700; }
.wk-meta { color: var(--muted); font-size: 0.9rem; }
.tag { font-size: 0.72rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); text-transform: uppercase; letter-spacing: 0.04em; }
.tag.Cutback { background: var(--line); color: var(--muted); }
.tag.Taper { color: var(--long); }
.tag.Race { color: var(--race); }
.days-list { padding: 0 16px 12px; }
.day { display: grid; grid-template-columns: 76px 1fr auto; gap: 4px 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.day.rest { opacity: 0.55; }
.day .d { color: var(--muted); font-size: 0.85rem; }
.day .d b { display: block; color: var(--ink); font-size: 0.95rem; }
.day .t { font-weight: 600; }
.day .m { font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; }
.day ul { margin: 4px 0 0; padding-left: 18px; color: var(--muted); font-size: 0.9rem; grid-column: 2 / 4; }
.day.workout .t { color: var(--workout); }
.day.long .t { color: var(--long); }
.day.race .t { color: var(--race); }
.tools { display: flex; gap: 10px; flex-wrap: wrap; margin: 4px 0 16px; }
.foot { color: var(--muted); font-size: 0.82rem; padding-bottom: 40px; }

@media print {
  .top, form, .tools, .foot, #messages { display: none !important; }
  body { background: #fff; color: #000; }
  details.week { break-inside: avoid; border-color: #bbb; }
  details.week:not([open]) > .days-list { display: block; }
  .card, .stat { border-color: #bbb; }
}

/* test runners, checkboxes, extras, paywall, legal */
.coach { border-style: dashed; }
.preset-actions { display: flex; gap: 8px; align-items: end; flex-wrap: wrap; }
.checks { display: flex; flex-direction: column; gap: 6px; margin-top: 14px; }
label.check { flex-direction: row; align-items: flex-start; gap: 10px; font-weight: 500; }
label.check input { width: auto; min-height: 0; margin-top: 4px; accent-color: var(--accent); }
.consent { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px; }
.consent a { color: var(--accent); }
.day .extra { grid-column: 2 / 4; margin-top: 6px; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; background: var(--bg); }
.day .extra summary { cursor: pointer; font-size: 0.9rem; font-weight: 600; }
.day .extra ul { margin: 6px 0 2px; padding-left: 18px; }
.xtag { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.05em; padding: 1px 7px; border-radius: 999px; margin-right: 4px; background: var(--accent-soft); color: var(--accent); }
.extra.strength .xtag { background: #fde7d6; color: #9a3412; }
.extra.cross .xtag { background: #dbeafe; color: #1d4ed8; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .extra.strength .xtag { background: #3b2412; color: #fdba74; } :root:not([data-theme="light"]) .extra.cross .xtag { background: #142a4a; color: #93c5fd; } }
.day.rest.has-extra { opacity: 1; }
.day.rest.has-extra .t { opacity: 0.55; }
.week.locked { background: var(--card); border: 1px dashed var(--line); border-radius: var(--radius); margin-bottom: 10px; padding: 12px 16px; opacity: 0.7; }
.wk-head { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: baseline; }
.week.locked .wk-head::after { content: "locked"; margin-left: auto; font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.unlock { border-color: var(--accent); }
.unlock button:disabled { opacity: 0.6; cursor: not-allowed; }
.disclaimer { margin-top: 16px; }
.legal { padding-bottom: 24px; }
.legal h2 { margin: 24px 0 6px; font-size: 1.1rem; }
.legal p { margin: 0 0 10px; max-width: 75ch; }
@media print { .coach, .unlock, .consent { display: none !important; } .day .extra { border-color: #bbb; } }

/* example chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border-radius: 999px; padding: 8px 14px; min-height: 40px; font-weight: 600; font-size: 0.9rem; background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.chip:hover { filter: brightness(0.95); }
.coach-tools { margin-top: 14px; }
.coach-tools summary { cursor: pointer; color: var(--muted); font-size: 0.9rem; font-weight: 600; }
.coach-tools .grid { margin-top: 10px; }

.why { grid-column: 2 / 4; margin: 2px 0 0; color: var(--muted); font-size: 0.88rem; font-style: italic; }
.day .extra .why { margin: 6px 0 0; }
.wk-why { margin: 0 0 6px; }