/* Black and yellow. Yellow only marks the next thing to act on; everything else is ink and grey. */
:root {
  --bg: #141414;
  --surface: #1f1f1f;
  --raised: #262626;
  --line: #2e2e2e;
  --line-strong: #4a4a46;
  --ink: #f2f2ee;
  --muted: #9a9a94;
  --accent: #ffd400;
  --on-accent: #141414;
  --danger: #ff6b5b;
  --display: "Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
  --body: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;
  --cond: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --radius: 12px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.45 var(--body);
  padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
}
a { color: var(--ink); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap {
  max-width: 720px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

/* Top bar */
.top { position: sticky; top: 0; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--line); padding-top: env(safe-area-inset-top, 0px); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 900 22px/1 var(--display); letter-spacing: .02em; text-transform: uppercase; }
.brand-mark { width: 28px; height: 28px; border-radius: 7px; background: var(--accent); display: grid; place-items: center; }
.brand-mark span { display: block; width: 18px; height: 4px; background: var(--on-accent); border-radius: 2px; }

/* Bottom nav (phone first) */
.tabs { position: fixed; left: 0; right: 0; bottom: 0; z-index: 5; background: var(--surface); border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom, 0px); }
.tabs-in { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 720px; margin: 0 auto; }
.tabs a { min-height: 60px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; text-decoration: none; color: var(--muted); font: 600 14px var(--cond); letter-spacing: .06em; text-transform: uppercase; }
.tabs a::before { content: ""; width: 20px; height: 4px; border-radius: 2px; background: transparent; }
.tabs a[aria-current="page"] { color: var(--ink); }
.tabs a[aria-current="page"]::before { background: var(--accent); }

/* Type */
h1, h2, h3 { font-family: var(--display); font-weight: 900; text-transform: uppercase; line-height: .95; margin: 0; }
h1 { font-size: 36px; }
h2 { font-size: 26px; }
h3 { font-size: 20px; }
.eyebrow { font: 600 14px var(--cond); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.muted { color: var(--muted); }
.page-head { display: flex; flex-direction: column; gap: 6px; padding: 24px 0 16px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 18px; border-radius: var(--radius); border: 1px solid var(--line-strong);
  background: var(--raised); color: var(--ink); cursor: pointer; text-decoration: none;
  font: 700 17px var(--cond); letter-spacing: .04em; text-transform: uppercase;
}
.btn:hover { color: var(--ink); border-color: var(--muted); }
.btn.primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn.primary:hover { color: var(--on-accent); filter: brightness(1.05); }
.btn.block { width: 100%; }
.btn.sm { min-height: 40px; font-size: 15px; padding: 0 12px; }
.linkbtn { background: none; border: 0; padding: 0; color: var(--muted); font: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
form.inline { display: inline; }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 18px 16px; display: flex; flex-direction: column; gap: 10px; }
.card.hero { border-color: var(--accent); }
.card a.cover { text-decoration: none; }
.chip { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 999px; background: var(--raised); font: 600 14px var(--cond); letter-spacing: .03em; color: var(--ink); }
.chip.accent { background: var(--accent); color: var(--on-accent); }

/* Flash messages */
.flash { margin-top: 16px; padding: 12px 14px; border-radius: var(--radius); background: var(--raised); border: 1px solid var(--line-strong); }
.flash.error { border-color: var(--danger); }

/* Forms */
.form { display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font: 600 14px var(--cond); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.field input, .field select {
  min-height: 48px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--line-strong);
  background: var(--raised); color: var(--ink); font: 16px var(--body);
}
.field input[type="file"] { padding: 10px 12px; }
.field .help { font-size: 14px; color: var(--muted); }
.field .errors, .errorlist { color: var(--danger); font-size: 14px; margin: 0; padding: 0; list-style: none; }

/* Week picker */
.seg { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 2px; }
.seg a {
  flex: 1 0 auto; min-height: 44px; min-width: 64px; padding: 6px 10px; border-radius: 10px;
  border: 1px solid var(--line-strong); text-decoration: none; text-align: center;
  display: flex; flex-direction: column; justify-content: center; line-height: 1.1;
  font: 700 15px var(--cond); text-transform: uppercase; letter-spacing: .04em;
}
.seg a small { font-weight: 500; color: var(--muted); letter-spacing: 0; text-transform: none; }
.seg a[aria-current="true"] { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.seg a[aria-current="true"] small { color: var(--on-accent); }

/* Program days */
.day { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.day-head { padding: 14px 16px 10px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.ex { list-style: none; margin: 0; padding: 0; }
.ex li { display: grid; grid-template-columns: 22px minmax(0, 1fr) auto; gap: 10px; align-items: baseline; padding: 10px 16px; border-top: 1px solid var(--line); }
.ex .n { font: 900 18px var(--display); color: var(--muted); }
.ex .n.main { color: var(--accent); }
.ex .name { font-weight: 600; }
.ex .note { font-size: 14px; color: var(--muted); margin-top: 2px; }
.ex .dose { font: 600 16px var(--cond); white-space: nowrap; font-variant-numeric: tabular-nums; text-align: right; }
.ex .dose small { display: block; font-weight: 500; color: var(--muted); }
.ex li.skipped .name, .ex li.skipped .dose { color: var(--muted); text-decoration: line-through; }

.empty { text-align: center; padding: 40px 16px; color: var(--muted); }
.foot { padding: 32px 0 16px; color: var(--muted); font-size: 14px; }