/* Fitness — a training log: chalk-black ground, safety-orange accent,
   condensed signage type for headings, tabular mono for every number. */

:root {
  --ground: #121211;
  --ground-2: #1a1a18;
  --card: #1f1f1c;
  --line: #34332e;
  --ink: #ecebe4;
  --ink-2: #a9a79c;
  --ink-3: #75736a;
  --accent: #ff6b2c;
  --accent-ink: #1b0d05;
  --accent-soft: rgba(255, 107, 44, 0.14);
  --good: #9ad17a;
  --error: #ff8f80;
  --grain-opacity: 0.06;

  --display: "Big Shoulders Display", "Arial Narrow", "Helvetica Neue Condensed", Impact, sans-serif;
  --body: "Atkinson Hyperlegible", "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --radius: 6px;
  --gutter: clamp(16px, 4vw, 32px);
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --ground: #f2eee4;
    --ground-2: #e9e4d7;
    --card: #fbf9f3;
    --line: #d6cfbe;
    --ink: #1c1b17;
    --ink-2: #57544a;
    --ink-3: #8a8676;
    --accent: #cf4510;
    --accent-ink: #fff7f2;
    --accent-soft: rgba(207, 69, 16, 0.1);
    --good: #3f7a2a;
    --error: #b42318;
    --grain-opacity: 0.05;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--ground);
  color: var(--ink);
  font: 16px/1.5 var(--body);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
/* Chalk grain over everything, never intercepting input. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}
[hidden] { display: none !important; }
a { color: inherit; }
button { font: inherit; color: inherit; }

/* ---------- header ---------- */
.top {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 5;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px 24px;
  padding: 14px var(--gutter) 10px;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(8px);
}
.wordmark {
  font: 900 30px/1 var(--display);
  letter-spacing: 0.01em;
  text-transform: uppercase;
  text-decoration: none;
}
.dot { color: var(--accent); }
.tabs { display: flex; gap: 4px; justify-self: center; }
.tabs a {
  font: 800 17px/1 var(--display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-3);
  padding: 8px 12px;
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}
.tabs a:hover { color: var(--ink); }
.tabs a[aria-current="page"] { color: var(--accent-ink); background: var(--accent); }
.who { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--ink-3); }
.link { background: none; border: 0; padding: 0; color: var(--ink-2); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.link:hover { color: var(--accent); }
/* Hazard stripe hangs off the header's bottom edge, whatever its height. */
.top::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 4px;
  background: repeating-linear-gradient(-45deg, var(--accent) 0 8px, transparent 8px 16px);
  opacity: 0.85;
}

@media (max-width: 640px) {
  .top { grid-template-columns: 1fr auto; }
  .tabs { grid-column: 1 / -1; grid-row: 2; justify-self: stretch; }
  .tabs a { flex: 1; text-align: center; padding: 10px 6px; }
  .who span { display: none; }
}

/* ---------- layout ---------- */
main {
  position: relative;
  z-index: 1;
  max-width: 920px;
  margin: 0 auto;
  padding: 28px var(--gutter) 64px;
}
.eyebrow {
  margin: 0 0 6px;
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.page-title {
  margin: 0;
  font: 900 clamp(44px, 9vw, 76px)/0.92 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.005em;
  overflow-wrap: anywhere;
}
.page-sub { margin: 10px 0 0; color: var(--ink-2); max-width: 60ch; }
.page-head { margin-bottom: 28px; }
.back { display: inline-block; margin-bottom: 14px; font: 500 13px/1 var(--mono); color: var(--ink-3); text-decoration: none; }
.back:hover { color: var(--accent); }

.section-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 34px 0 12px;
  font: 800 15px/1 var(--display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.section-title::after { content: ""; flex: 1; border-top: 1px solid var(--line); transform: translateY(-4px); }
.list > .section-title:first-child { margin-top: 30px; }

/* ---------- stat strip ---------- */
.stats { display: flex; flex-wrap: wrap; gap: 8px 28px; margin-top: 18px; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat b { font: 800 30px/1 var(--display); font-variant-numeric: tabular-nums; }
.stat span { font: 500 11px/1.2 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }

/* ---------- cards & lists ---------- */
.list { display: grid; gap: 10px; }
.card {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 0 16px;
  align-items: center;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
  animation: rise 0.42s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  animation-delay: calc(var(--i, 0) * 40ms);
}
a.card:hover { border-color: var(--accent); transform: translateX(3px); }
a.card:hover .chev { color: var(--accent); transform: translateX(2px); }
.card.wide { grid-template-columns: 1fr auto; }
.date-block { text-align: center; line-height: 1; border-right: 1px solid var(--line); padding-right: 14px; }
.date-block .d { display: block; font: 900 34px/1 var(--display); font-variant-numeric: tabular-nums; }
.date-block .m { display: block; margin-top: 4px; font: 600 11px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.date-block .w { display: block; margin-top: 3px; font: 500 10px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.card-title { margin: 0; font: 800 22px/1.05 var(--display); text-transform: uppercase; letter-spacing: 0.01em; overflow-wrap: anywhere; }
.card-meta { margin: 6px 0 0; font: 400 13px/1.4 var(--mono); color: var(--ink-2); font-variant-numeric: tabular-nums; }
.card-meta .sep { color: var(--ink-3); padding: 0 6px; }
.chev { font: 800 22px/1 var(--display); color: var(--ink-3); transition: color 0.15s, transform 0.15s; }
.chip {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font: 500 11px/1.6 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
  vertical-align: middle;
  text-decoration: none;
}
a.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.accent { border-color: transparent; background: var(--accent-soft); color: var(--accent); }

/* ---------- exercise blocks & set rows ---------- */
.block {
  margin-bottom: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  animation: rise 0.42s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  animation-delay: calc(var(--i, 0) * 60ms);
}
.block-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--ground-2);
}
.block-head h3 { margin: 0; font: 800 24px/1 var(--display); text-transform: uppercase; }
.block-head h3 a { text-decoration: none; }
.block-head h3 a:hover { color: var(--accent); }
.block-sum { font: 400 12px/1.4 var(--mono); color: var(--ink-2); font-variant-numeric: tabular-nums; }
.block-sum b { color: var(--ink); font-weight: 600; }

.sets { margin: 0; padding: 0; list-style: none; }
.set {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  grid-template-areas: "n load rpe" ". note note";
  align-items: center;
  gap: 2px 12px;
  padding: 11px 16px;
  border-top: 1px dashed var(--line);
}
.set:first-child { border-top: 0; }
.set .n { grid-area: n; font: 600 12px/1 var(--mono); color: var(--ink-3); }
.set .load { grid-area: load; font: 500 21px/1.1 var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.set .load .x { color: var(--ink-3); padding: 0 0.15em; font-weight: 400; }
.set .load .u { font-size: 13px; color: var(--ink-3); padding-left: 0.2em; }
.set .note { grid-area: note; margin: 2px 0 0; font-size: 14px; color: var(--ink-2); }
.set.best .load { color: var(--accent); }
.set.best .n::after { content: " ★"; color: var(--accent); }

.rpe { grid-area: rpe; display: flex; align-items: center; gap: 8px; }
.rpe .gauge { display: grid; grid-template-columns: repeat(10, 5px); gap: 2px; }
.rpe .gauge i { height: 14px; background: var(--line); border-radius: 1px; }
.rpe .gauge i.on { background: var(--ink-2); }
.rpe .gauge i.on.hot { background: var(--accent); }
.rpe .gauge i.half { background: linear-gradient(90deg, var(--ink-2) 50%, var(--line) 50%); }
.rpe .gauge i.half.hot { background: linear-gradient(90deg, var(--accent) 50%, var(--line) 50%); }
.rpe .v { min-width: 4.4em; font: 600 12px/1 var(--mono); color: var(--ink-2); text-align: right; }
.rpe.none .v { color: var(--ink-3); font-weight: 400; }

/* ---------- plan targets ---------- */
.target { margin: 6px 0 0; font: 500 18px/1.2 var(--mono); font-variant-numeric: tabular-nums; }
.target .x, .target .at { color: var(--ink-3); padding: 0 0.3em; }
.num { font-family: var(--mono); font-weight: 600; letter-spacing: 0; }

/* ---------- catalogue ---------- */
.search {
  width: 100%;
  margin-bottom: 18px;
  padding: 12px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: 400 16px/1.2 var(--body);
  color: var(--ink);
}
.search:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.group-label { margin: 22px 0 8px; font: 600 12px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }

/* ---------- chart ---------- */
.chart { margin: 4px 0 6px; padding: 14px 16px 10px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .grid line { stroke: var(--line); stroke-dasharray: 2 4; }
.chart .axis text { fill: var(--ink-3); font: 500 10px var(--mono); }
.chart .line { fill: none; stroke: var(--accent); stroke-width: 2.25; stroke-linejoin: round; stroke-linecap: round; }
.chart .area { fill: var(--accent-soft); }
.chart .pt { fill: var(--card); stroke: var(--accent); stroke-width: 2; }
.chart .pt.last { fill: var(--accent); }
.chart-cap { margin: 8px 0 0; font: 400 12px/1.4 var(--mono); color: var(--ink-3); }

/* ---------- states ---------- */
.empty {
  padding: 36px 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  text-align: center;
  color: var(--ink-2);
}
.empty h3 { margin: 0 0 6px; font: 800 24px/1 var(--display); text-transform: uppercase; color: var(--ink); }
.empty code { font: 500 13px var(--mono); color: var(--accent); }
.skeleton { display: grid; gap: 10px; }
.skeleton div {
  height: 74px;
  border-radius: var(--radius);
  background: linear-gradient(90deg, var(--card) 0%, var(--ground-2) 50%, var(--card) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.2s linear infinite;
}
.error { color: var(--error); }
.error-box { padding: 16px; border: 1px solid var(--error); border-radius: var(--radius); color: var(--error); }

/* ---------- sign-in gate ---------- */
.gate {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 920px;
  margin: 0 auto;
  padding: 48px var(--gutter);
}
.gate-title {
  margin: 0;
  font: 900 clamp(84px, 22vw, 220px)/0.82 var(--display);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.gate-copy { max-width: 36ch; margin: 18px 0 28px; font-size: 19px; color: var(--ink-2); }
.primary {
  align-self: flex-start;
  padding: 14px 22px;
  border: 0;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  font: 800 18px/1 var(--display);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 0 0 0 var(--accent-soft);
  transition: box-shadow 0.2s, transform 0.1s;
}
.primary:hover { box-shadow: 0 0 0 8px var(--accent-soft); }
.primary:active { transform: translateY(1px); }

a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }

@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes shimmer { to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

@media (max-width: 480px) {
  .card { grid-template-columns: 52px 1fr auto; gap: 0 12px; padding: 12px; }
  .date-block { padding-right: 10px; }
  .date-block .d { font-size: 28px; }
  .card-title { font-size: 19px; }
  .set { grid-template-columns: 26px minmax(0, 1fr) auto; padding: 10px 12px; }
  .set .load { font-size: 19px; }
  .rpe .gauge { grid-template-columns: repeat(10, 4px); }
  .rpe .v { min-width: 3.6em; }
}