@import url("../../assets/print.css") print; /* shared black-on-white print / PDF rules */
/* ===========================================================================
   GymTrack — Guided Project styling (standalone "newspaper" system)
   Shared by index.html (Modules 1–3) and modules-4-8.html (Modules 4–8).
   No build step, no framework.
   =========================================================================== */
:root {
  --ink: #1a1714;
  --paper: #f7f3ec;
  --paper-2: #efe8dc;
  --rule: #d8cdb9;
  --accent: #c2410c;       /* burnt orange */
  --accent-2: #15803d;     /* green */
  --accent-3: #1d4ed8;     /* blue */
  --muted: #6f655a;
  --code-bg: #211c17;
  --code-fg: #ece3d4;
  --code-key: #f0a868;
  --code-str: #9fcf8f;
  --code-com: #8a8073;
  --card: #fff;            /* raised surface */
  --mono: "SF Mono", "JetBrains Mono", "Menlo", "Consolas", monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", "Georgia", serif;
  --sans: "Avenir Next", "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 10%, #fbf8f2 0%, var(--paper) 55%);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.6;
  font-size: 17px;
  padding-bottom: 72px;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 0 22px; }

/* ---- Top nav (cross-page + home) ---- */
.projnav {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  font-family: var(--sans); font-size: 13px;
  padding: 16px 0 0;
}
.projnav a {
  text-decoration: none; color: var(--muted);
  border: 1px solid var(--rule); border-radius: 999px;
  padding: 5px 13px; background: var(--paper-2);
  transition: color .15s, border-color .15s;
}
.projnav a:hover { color: var(--accent); border-color: var(--accent); }
.projnav a.current { color: var(--accent); border-color: var(--accent); font-weight: 700; }
.projnav .sp { flex: 1; }

/* ---- Masthead ---- */
header.masthead {
  border-bottom: 3px double var(--ink);
  padding: 30px 0 26px;
  margin-bottom: 8px;
}
.kicker {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: .28em;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 14px;
}
h1.title {
  font-family: var(--serif);
  font-size: clamp(38px, 7vw, 64px);
  line-height: 1.02;
  margin: 0 0 4px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.subtitle {
  font-family: var(--sans);
  font-size: 18px;
  color: var(--muted);
  margin: 10px 0 0;
  max-width: 70ch;
}
.meta-row {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 22px;
  font-family: var(--sans);
  font-size: 12.5px;
}
.chip {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 5px 13px;
  color: var(--ink);
  font-weight: 600;
}
.chip.hot { border-color: var(--accent); color: var(--accent); }

/* ---- TOC ---- */
nav.toc {
  margin: 30px 0 10px;
  padding: 20px 24px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-left: 5px solid var(--accent);
  border-radius: 4px;
}
nav.toc h2 {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 12px;
  margin: 0 0 12px;
  color: var(--muted);
}
nav.toc ol { margin: 0; padding-left: 0; list-style: none; counter-reset: m; }
nav.toc li {
  counter-increment: m;
  margin: 7px 0;
  font-family: var(--sans);
  font-size: 15px;
}
nav.toc li::before {
  content: "M" counter(m, decimal-leading-zero);
  display: inline-block;
  width: 46px;
  color: var(--accent);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
nav.toc.m13 { counter-reset: m; }
nav.toc.m13 li::before { content: counter(m) ". "; width: 26px; }
nav.toc a { color: var(--ink); text-decoration: none; border-bottom: 1px solid transparent; }
nav.toc a:hover { border-bottom-color: var(--accent); }

/* ---- Module sections ---- */
section.module { margin: 56px 0; scroll-margin-top: 20px; }
.module-head {
  display: flex; align-items: baseline; gap: 16px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 10px; margin-bottom: 6px;
}
.module-num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  padding: 4px 10px;
  border-radius: 3px;
  white-space: nowrap;
}
.module-num.g { background: var(--accent-2); }
.module-num.b { background: var(--accent-3); }
h2.module-title {
  font-size: clamp(24px, 4vw, 32px);
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.01em;
}

h3 {
  font-family: var(--sans);
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin: 30px 0 12px;
  color: var(--ink);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
h3 .tag {
  font-size: 10.5px;
  letter-spacing: .12em;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 2px 8px;
  color: var(--muted);
}
p { margin: 12px 0; }
code.inline {
  font-family: var(--mono);
  font-size: 13.5px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1px 6px;
  color: var(--accent);
}

/* ---- Content lists ---- */
ul.bullets { margin: 14px 0; padding-left: 22px; }
ul.bullets li {
  font-family: var(--sans); font-size: 15px;
  margin: 7px 0; line-height: 1.5;
}
ul.bullets li code { font-family: var(--mono); font-size: 13px; color: var(--accent); }

/* ---- Code blocks ---- */
pre {
  background: var(--code-bg);
  color: var(--code-fg);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  padding: 18px 20px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 16px 0;
  box-shadow: 0 8px 24px rgba(33,28,23,.18);
  tab-size: 2;
}
pre .c { color: var(--code-com); font-style: italic; }
pre .k { color: var(--code-key); }
pre .s { color: var(--code-str); }
pre .o { color: #f7f3ec; }                 /* program output / plain */
.filelabel {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  background: #34291f;
  color: var(--code-key);
  display: inline-block;
  padding: 6px 12px;
  border-radius: 8px 8px 0 0;
  margin: 16px 0 -10px;
  position: relative; z-index: 1;
}
.filelabel + pre { margin-top: 0; border-top-left-radius: 0; }

/* ---- Callouts ---- */
.callout {
  border-left: 4px solid var(--accent-3);
  background: #eef3fc;
  padding: 14px 18px;
  border-radius: 0 6px 6px 0;
  margin: 18px 0;
  font-size: 15.5px;
}
.callout.pm {
  border-left-color: var(--accent);
  background: #fbeee6;
}
.callout.pm .who {
  font-family: var(--sans);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 6px;
}
.callout.warn { border-left-color: #b45309; background: #fdf4e3; }
.callout.why {
  border-left-color: var(--accent-2);
  background: #eef6ef;
}
.callout.why .who {
  font-family: var(--sans);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--accent-2);
  font-weight: 700;
  margin-bottom: 6px;
}

/* ---- Tables ---- */
.tablewrap { overflow-x: auto; margin: 18px 0; }
table {
  border-collapse: collapse; width: 100%;
  font-family: var(--sans); font-size: 14px;
}
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th {
  background: var(--paper-2);
  text-transform: uppercase; letter-spacing: .06em;
  font-size: 11.5px; color: var(--muted);
}
tbody tr:nth-child(even) { background: rgba(216,205,185,.18); }
td code { font-family: var(--mono); font-size: 12.5px; color: var(--accent); }

/* ---- Done checklist ---- */
.done {
  background: linear-gradient(180deg, #f0f7f0, #e9f3e9);
  border: 1px solid #bcdcbc;
  border-radius: 8px;
  padding: 18px 22px;
  margin: 22px 0;
}
.done ul { list-style: none; padding: 0; margin: 0; }
.done li {
  font-family: var(--sans); font-size: 14.5px;
  padding: 6px 0 6px 30px; position: relative;
}
.done li::before {
  content: "\2713"; position: absolute; left: 0; top: 5px;
  color: var(--accent-2); font-weight: 800;
}
.done li code { font-family: var(--mono); font-size: 13px; color: var(--accent); }

/* ---- Exercise ---- */
.exercise {
  border: 1px dashed var(--accent);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 18px 0;
  background: rgba(194,65,12,.04);
  font-size: 15.5px;
}
.exercise .lbl {
  font-family: var(--sans); font-weight: 700;
  color: var(--accent); font-size: 12px;
  text-transform: uppercase; letter-spacing: .12em;
  margin-bottom: 4px;
}
.exercise code { font-family: var(--mono); font-size: 13px; color: var(--accent); }

/* ---- Concept map intro ---- */
.intro-map {
  margin: 22px 0 8px;
  padding: 20px 24px;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(33,28,23,.06);
}
.intro-map h3 { margin-top: 0; }

/* ---- Footer ---- */
footer.end {
  border-top: 3px double var(--ink);
  margin-top: 60px; padding-top: 26px;
  font-family: var(--sans); font-size: 14px; color: var(--muted);
}
footer.end .big {
  font-family: var(--serif);
  font-size: 22px; color: var(--ink); font-weight: 700;
  margin-bottom: 8px;
}
footer.end a { color: var(--accent); }
.sig { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-top: 18px; }

@media print {
  body { font-size: 12px; padding-bottom: 0; }
  pre { box-shadow: none; }
  section.module { page-break-inside: avoid; }
  nav.toc, .projnav { page-break-after: avoid; }
}

/* =========================== DARK MODE =========================== */
html[data-theme="dark"] {
  --ink: #ece3d4;
  --paper: #14110d;
  --paper-2: #1e1812;
  --rule: #3a322a;
  --accent: #ef7a47;
  --accent-2: #45c46c;
  --accent-3: #6ea6ff;
  --muted: #a99c8c;
  --card: #1e1812;
}
html[data-theme="dark"] body {
  background: radial-gradient(circle at 20% 10%, #1d1812 0%, var(--paper) 55%);
}
html[data-theme="dark"] .callout.pm   { background: rgba(239,122,71,.10); }
html[data-theme="dark"] .callout.warn { background: rgba(217,138,58,.12); border-left-color: #d98a3a; }
html[data-theme="dark"] .callout      { background: rgba(110,166,255,.12); }
html[data-theme="dark"] .callout.why  { background: rgba(69,196,108,.12); }
html[data-theme="dark"] .done         { background: linear-gradient(180deg, rgba(69,196,108,.14), rgba(69,196,108,.05)); border-color: rgba(69,196,108,.32); }

/* ---- theme toggle button ---- */
#gt-theme-toggle {
  position: fixed; right: 18px; bottom: 18px; z-index: 200;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--rule); background: var(--paper-2); color: var(--ink);
  font-size: 18px; line-height: 1; cursor: pointer;
  box-shadow: 0 6px 18px -8px rgba(0,0,0,.55);
  transition: transform .15s, border-color .15s, color .15s;
}
#gt-theme-toggle:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--accent); }