/* Side Quest Projects · Trailhead
   Shared styles for the hub and for new projects built from templates/starter.
   Tokens match the Side Quest Projects design system (tokens.json). Two themes:
   Day and Night trail. The page follows the device setting until the reader picks one;
   the choice is stored as localStorage "hsf-theme" and shared by every Trailhead page on the site.

   Load with:
   <link rel="preconnect" href="https://fonts.googleapis.com">
   <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
   <link href="https://fonts.googleapis.com/css2?family=Archivo:wdth,wght@75..100,400..800&family=JetBrains+Mono:wght@400;500;700&display=swap" rel="stylesheet">
   <link rel="stylesheet" href="../brand/brand.css">   (or "brand/brand.css" from the hub)
*/

/* ---------- tokens: Day ---------- */
:root {
  --ground: #F3F0E8;
  --surface: #FFFFFF;
  --raised: #F0EDE4;
  --rule: #CFC9B8;
  --rule-strong: #1B1D1A;
  --ink: #1B1D1A;
  --muted: #55584F;
  --faint: #66685E;
  --smoke: #8E8B7E;
  --accent: #B8461B;
  --accent-hover: #8E3412;
  --on-accent: #FFFFFF;
  --accent-tint: #FBF1EB;
  --lake: #2F5E7A;
  --moss: #3F6B4F;
  --heather: #6B4A7A;
  --contour: #E4DFD2;

  /* the current project's colour; set per page or per card (SQ-01 accent, SQ-02 lake, SQ-03 moss, SQ-04 heather) */
  --project: var(--accent);

  --sans: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-5: 24px;
  --space-6: 32px; --space-7: 48px; --space-8: 64px; --space-9: 80px;
  --radius-sm: 2px; --radius-md: 4px; --radius-icon: 8px;

  --measure: 68ch;
  --page: 1180px;
  color-scheme: light;
}

/* ---------- tokens: Night trail (device setting, unless the reader chose Day) ---------- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #16150F; --surface: #1F1E17; --raised: #2A2820; --rule: #3B382E; --rule-strong: #77725F;
    --ink: #ECE7DA; --muted: #ADA796; --faint: #9C9785; --smoke: #8F8A7A;
    --accent: #F08A55; --accent-hover: #F6A273; --on-accent: #16150F; --accent-tint: #33231A;
    --lake: #86B4D2; --moss: #93C29F; --heather: #BFA3D1; --contour: #232118;
    color-scheme: dark;
  }
}
/* ---------- tokens: Night trail (reader chose it) ---------- */
:root[data-theme="dark"] {
  --ground: #16150F; --surface: #1F1E17; --raised: #2A2820; --rule: #3B382E; --rule-strong: #77725F;
  --ink: #ECE7DA; --muted: #ADA796; --faint: #9C9785; --smoke: #8F8A7A;
  --accent: #F08A55; --accent-hover: #F6A273; --on-accent: #16150F; --accent-tint: #33231A;
  --lake: #86B4D2; --moss: #93C29F; --heather: #BFA3D1; --contour: #232118;
  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0; background: var(--ground); color: var(--ink);
  font: 400 16px/25px var(--sans); -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: var(--radius-sm); }
button { font: inherit; color: inherit; cursor: pointer; }
.sq-skip { position: absolute; left: -9999px; top: 0; }
.sq-skip:focus { left: var(--space-4); top: var(--space-4); background: var(--surface); padding: var(--space-2) var(--space-3); z-index: 10; }

/* ---------- type ---------- */
.sq-display { font: 800 clamp(44px, 9vw, 72px)/0.95 var(--sans); font-stretch: 85%; letter-spacing: -0.03em; margin: 0; }
.sq-h1 { font: 800 clamp(36px, 7vw, 56px)/1 var(--sans); font-stretch: 85%; letter-spacing: -0.03em; margin: 0; }
.sq-h2 { font: 700 clamp(24px, 4vw, 30px)/1.2 var(--sans); letter-spacing: -0.01em; margin: 0; }
.sq-h3 { font: 600 20px/27px var(--sans); margin: 0; }
.sq-lede { font: 400 19px/29px var(--sans); color: var(--muted); max-width: var(--measure); margin: 0; }
.sq-small { font-size: 13.5px; line-height: 20px; color: var(--muted); }
.sq-label { font: 600 12px/16px var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); }
.sq-code { font: 700 12px/16px var(--mono); letter-spacing: 0.14em; color: var(--project); }
.sq-prose { max-width: var(--measure); }
.sq-prose p { margin: 0 0 var(--space-4); }

/* ---------- layout ---------- */
.sq-wrap { width: 100%; max-width: var(--page); margin: 0 auto; padding: 0 var(--space-5); }
@media (min-width: 1280px) { .sq-wrap { padding: 0 var(--space-6); } }
.sq-section { padding-block: var(--space-7); }
@media (min-width: 760px) { .sq-section { padding-block: var(--space-8); } }
.sq-section-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap;
  border-top: 1.5px solid var(--rule-strong); padding-top: var(--space-3); margin-bottom: var(--space-5); }

/* ---------- mark and wordmark ---------- */
.sq-mark { width: 32px; height: 32px; flex: none; }
.sq-mark .ln { stroke: var(--ink); }
.sq-mark .tr { stroke: var(--accent); }
.sq-mark .wp { fill: var(--accent); }
.sq-word { display: grid; line-height: 1; }
.sq-word b { font: 800 19px/1 var(--sans); font-stretch: 85%; letter-spacing: -0.02em; text-transform: lowercase; }
.sq-word small { font: 500 8.5px/1 var(--mono); letter-spacing: 0.42em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }

/* ---------- top bar (umbrella lockup: mark · Side Quest Projects · hairline · code · project) ---------- */
.sq-top { border-bottom: 1px solid var(--rule); background: var(--ground); }
.sq-top .sq-wrap { display: flex; align-items: center; gap: var(--space-3); min-height: 60px; }
.sq-home { display: flex; align-items: center; gap: var(--space-3); color: var(--ink); text-decoration: none; min-height: 44px; }
.sq-home:hover { color: var(--ink); }
.sq-lockup { display: flex; align-items: center; gap: var(--space-3); min-width: 0; }
.sq-lockup::before { content: ""; width: 1px; height: 28px; background: var(--rule); flex: none; }
.sq-lockup .sq-pname { font-weight: 600; font-size: 15px; line-height: 1.2; }
.sq-top-end { margin-left: auto; display: flex; gap: var(--space-2); align-items: center; }
@media (max-width: 480px) { .sq-top .sq-word { display: none; } .sq-lockup::before { display: none; } }

/* ---------- buttons ---------- */
.sq-btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-height: 44px; padding: 0 var(--space-5);
  border-radius: var(--radius-md); border: 1.5px solid var(--rule-strong); background: var(--surface); color: var(--ink);
  font: 600 15px/1 var(--sans); text-decoration: none; }
.sq-btn:hover { background: var(--raised); color: var(--ink); }
.sq-btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.sq-btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--on-accent); }
.sq-icon-btn { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--rule); border-radius: var(--radius-md); background: transparent; color: var(--ink); }
.sq-icon-btn:hover { background: var(--raised); }
.sq-icon-btn svg { width: 18px; height: 18px; }

/* ---------- project card ---------- */
.sq-cards { display: grid; gap: var(--space-5); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .sq-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.sq-card { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--rule); border-top: 4px solid var(--project);
  border-radius: var(--radius-md); color: var(--ink); text-decoration: none; overflow: hidden; }
.sq-card:hover { border-color: var(--rule-strong); border-top-color: var(--project); color: var(--ink); }
.sq-card:hover .sq-go { color: var(--project); }
.sq-card .sq-thumb { aspect-ratio: 1200 / 630; width: 100%; height: auto; object-fit: cover; border-bottom: 1px solid var(--rule); background: var(--raised); }
.sq-card .sq-body { padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-3); flex: 1; }
@media (max-width: 480px) { .sq-card .sq-body { padding: var(--space-4); } }
.sq-card .sq-meta { display: flex; gap: var(--space-3); align-items: baseline; flex-wrap: wrap; }
.sq-card p { margin: 0; color: var(--muted); }
.sq-card .sq-foot-row { margin-top: auto; padding-top: var(--space-3); border-top: 1px solid var(--rule); display: flex; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; align-items: baseline; }
.sq-go { font: 600 15px/1.3 var(--sans); }

/* ---------- divider: the dotted trail from the mark ---------- */
.sq-trail { height: 4px; background-image: radial-gradient(circle, var(--accent) 1.6px, transparent 2px); background-size: 12px 4px; background-repeat: repeat-x; opacity: .85; }

/* ---------- footer ---------- */
.sq-foot { border-top: 1px solid var(--rule); padding: var(--space-6) 0 var(--space-7); color: var(--faint); font-size: 13.5px; line-height: 20px; }
.sq-foot .sq-wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-4); }
.sq-foot a { color: var(--muted); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }
@media print { .sq-top-end, .sq-skip { display: none; } body { background: #fff; color: #000; } }