/* backtogym.app: the app's colour tokens (docs/visual-design.md), Barlow Condensed headings, system body text.
   No web fonts from elsewhere, no scripts, no cookies. */
@font-face { font-family: "Barlow Condensed"; font-weight: 700; font-display: swap;
  src: url("/assets/BarlowCondensed-Bold.ttf") format("truetype"); }
@font-face { font-family: "Barlow Condensed"; font-weight: 600; font-display: swap;
  src: url("/assets/BarlowCondensed-SemiBold.ttf") format("truetype"); }

:root {
  --bg: #ECEFF3; --surface: #FFFFFF; --sunk: #E2E7ED; --ink: #111821; --muted: #586473; --line: #D2D9E1;
  --accent: #1C4ED6; --bad: #C3302B; --p-re: #2E9E5B; --p-ramp: #D9A514; --p-build: #1C4ED6; --p-deload: #9AA4B1;
  --navy: #101726;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0C1015; --surface: #151B23; --sunk: #1D252F; --ink: #E6EBF1; --muted: #95A2B2; --line: #27313D;
    --accent: #7192FF; --bad: #F06A64; --p-re: #45C07A; --p-ramp: #E8BF3C; --p-build: #7192FF; --p-deload: #A3AEBB;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

header.top { padding: 18px 0; }
header.top .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; }
header.top .name, header.top nav a { white-space: nowrap; }
header.top a.home { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
header.top img { width: 32px; height: 32px; border-radius: 8px; }
header.top .name { font: 700 22px/1 "Barlow Condensed", sans-serif; letter-spacing: 0.04em; text-transform: uppercase; }
header.top nav { margin-left: auto; display: flex; gap: 16px; font-size: 15px; }
header.top nav a { color: var(--muted); text-decoration: none; }
header.top nav a:hover, header.top nav a[aria-current] { color: var(--ink); }

h1, h2, h3 { font-family: "Barlow Condensed", sans-serif; font-weight: 700; line-height: 1.1; letter-spacing: 0.01em; }
h1 { font-size: 44px; margin: 24px 0 8px; }
h2 { font-size: 28px; margin: 40px 0 8px; }
h3 { font-size: 21px; font-weight: 600; margin: 28px 0 6px; }
p, ul, ol { margin: 0 0 14px; }
li { margin: 4px 0; }
code { font: 0.88em ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--sunk); padding: 1px 5px; border-radius: 5px; }
pre { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; overflow-x: auto; }
pre code { background: none; padding: 0; font-size: 13px; }
table { border-collapse: collapse; width: 100%; margin: 0 0 16px; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
.table { overflow-x: auto; }
.muted { color: var(--muted); }
article.page { padding-bottom: 48px; }
article.page > p:first-of-type.lede { color: var(--muted); }

/* Home */
.hero { padding: 36px 0 12px; }
.hero .mark { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 8px 24px rgba(16, 23, 38, 0.25); }
.hero h1 { font-size: 64px; text-transform: uppercase; letter-spacing: 0.03em; margin: 20px 0 4px; }
.hero .line { font: 600 26px/1.2 "Barlow Condensed", sans-serif; color: var(--muted); margin: 0 0 18px; }
.hero .intro { font-size: 19px; max-width: 34em; }
.phases { display: flex; gap: 6px; margin: 22px 0 6px; max-width: 420px; }
.phases span { height: 10px; border-radius: 5px; flex: 1; }
.phases .re { background: var(--p-re); } .phases .ramp { background: var(--p-ramp); }
.phases .build { background: var(--p-build); } .phases .deload { background: var(--p-deload); }
.points { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin: 28px 0; }
.point { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; }
.point h2 { margin: 0 0 6px; font-size: 24px; }
.point p { margin: 0; color: var(--muted); }
.callout { background: var(--surface); border: 1px solid var(--line); border-left: 5px solid var(--accent); border-radius: 12px; padding: 14px 16px; margin: 20px 0; }
.stop { border-left-color: var(--bad); }

footer { border-top: 1px solid var(--line); padding: 20px 0 40px; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 18px; }
footer a { color: var(--muted); }

@media (max-width: 520px) {
  h1 { font-size: 36px; } .hero h1 { font-size: 48px; } .hero .line { font-size: 22px; }
  header.top nav { gap: 12px; font-size: 14px; }
}