/* GO Fest Chicago 2026 — Editorial briefing aesthetic */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Manrope:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --paper: #f5ece0;
  --paper-shade: #ebe1d2;
  --ink: #1a2433;
  --ink-soft: #3a4655;
  --ink-faded: #6b7588;
  --rule: #c4b8a4;
  --rule-soft: #d9d0c0;
  --crimson: #b3261e;       /* Chicago flag red */
  --crimson-deep: #7c1b18;
  --gold: #d4a01e;           /* legendary highlight */
  --gold-soft: #f7c80022;
  --teal: #167a78;           /* secondary */
  --shadow-soft: 0 1px 3px rgba(26,36,51,0.08), 0 8px 24px rgba(26,36,51,0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Manrope', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Paper grain texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(180,160,120,0.04), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(140,120,80,0.05), transparent 50%),
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(120,100,70,0.012) 2px, rgba(120,100,70,0.012) 4px);
  mix-blend-mode: multiply;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-top: 1.6em;
  margin-bottom: 0.4em;
  line-height: 1.15;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); margin-top: 0; }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); }
h4 { font-size: 1.1rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }

p { margin: 0 0 1em 0; max-width: 65ch; }

a { color: var(--crimson); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 0.15s; }
a:hover { border-bottom-color: var(--crimson); }

code, .mono { font-family: 'JetBrains Mono', monospace; font-size: 0.92em; }
code { background: var(--paper-shade); padding: 0.1em 0.4em; border-radius: 2px; }

strong { font-weight: 600; }
em { font-style: italic; color: var(--ink-soft); }

/* Layout */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 2; }
.wrap-narrow { max-width: 760px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 2; }

/* Site header / nav */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: rgba(245,236,224,0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; padding-top: 18px; padding-bottom: 18px; }
.brand {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 8px;
  border-bottom: none !important;
}
.brand .star { color: var(--crimson); font-size: 0.8em; }
.brand small { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; font-weight: 400; color: var(--ink-faded); letter-spacing: 0.1em; text-transform: uppercase; }
.nav-list {
  display: flex;
  gap: 26px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-list a {
  color: var(--ink-soft);
  border-bottom: none;
  padding-bottom: 4px;
  border-bottom: 1.5px solid transparent;
}
.nav-list a:hover, .nav-list a.active { color: var(--ink); border-bottom-color: var(--crimson); }

@media (max-width: 760px) {
  .site-header .wrap { flex-direction: column; gap: 12px; }
  .nav-list { flex-wrap: wrap; justify-content: center; gap: 16px; }
}

/* ── Standardized site nav (v21) ───────────────────────────────────────────
   Single hamburger-collapsible strip used on every page. Desktop shows the
   full link row; ≤760px collapses to a ☰ Menu button that toggles .open.
   Ported from the loops/map inline styles into the shared sheet so all pages
   render an identical header. The toggle is a self-contained inline onclick
   on the button — no external JS needed. */
.site-nav-strip {
  background: var(--ink); color: var(--paper);
  padding: 8px 18px; display: flex; gap: 18px; align-items: center; flex-wrap: wrap;
  font-family: 'JetBrains Mono', monospace; font-size: 0.78rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  border-bottom: 1.5px solid var(--ink);
  position: sticky; top: 0; z-index: 100;
}
.site-nav-strip a, .site-nav-strip .active { color: rgba(255,255,255,0.72); text-decoration: none; padding: 4px 2px; border-bottom: 1.5px solid transparent; white-space: nowrap; }
.site-nav-strip a:hover { color: white; border-bottom-color: var(--crimson); }
.site-nav-strip .active { color: var(--gold); border-bottom-color: var(--gold); }
.site-nav-strip .brand-link { color: white; font-family: 'Cormorant Garamond', serif; font-style: italic; font-weight: 600; font-size: 1rem; letter-spacing: -0.01em; text-transform: none; padding-right: 8px; border-bottom: none; }
.site-nav-strip .nav-links { display: contents; }
.nav-toggle { display: none; background: transparent; border: 1px solid rgba(255,255,255,0.45); color: white; padding: 8px 14px; font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; letter-spacing: 0.08em; cursor: pointer; margin-left: auto; border-radius: 3px; }

@media (max-width: 760px) {
  .site-nav-strip { padding: 10px 14px; gap: 10px; }
  .site-nav-strip .brand-link { font-size: 1.1rem; }
  .nav-toggle { display: inline-block; font-size: 0.95rem; padding: 9px 14px; }
  .site-nav-strip .nav-links {
    display: none; flex-basis: 100%; flex-direction: column;
    gap: 2px; padding: 12px 0 4px; margin-top: 8px;
    border-top: 1px solid rgba(255,255,255,0.18);
    font-size: 1.05rem; letter-spacing: 0.06em;
  }
  .site-nav-strip .nav-links a, .site-nav-strip .nav-links .active {
    padding: 12px 6px; border-bottom: none; min-height: 44px; display: flex; align-items: center;
  }
  .site-nav-strip .nav-links .active { background: rgba(212,160,30,0.14); padding-left: 12px; }
  .site-nav-strip.open .nav-links { display: flex; }
}

/* Hero */
.hero {
  padding: 80px 0 100px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: -200px;
  bottom: -100px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(179,38,30,0.06), transparent 70%);
  pointer-events: none;
}
.hero-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--crimson);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before, .hero-eyebrow::after {
  content: '';
  height: 1px;
  width: 28px;
  background: var(--crimson);
}
.hero-eyebrow::after { flex: 1; }
.hero h1 {
  font-style: italic;
  font-weight: 500;
  font-size: clamp(3rem, 8vw, 6.5rem);
}
.hero h1 .accent {
  font-style: normal;
  font-weight: 700;
  color: var(--crimson);
  font-variant: small-caps;
}
.hero-lede {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.3rem, 2.2vw, 1.65rem);
  line-height: 1.4;
  color: var(--ink-soft);
  max-width: 720px;
  margin-top: 32px;
}
.hero-meta {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 32px 48px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  border-top: 1px solid var(--rule);
  padding-top: 32px;
}
.hero-meta div { display: flex; flex-direction: column; gap: 6px; }
.hero-meta .label { color: var(--ink-faded); text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.7rem; }
.hero-meta .value { color: var(--ink); font-size: 1.05rem; font-weight: 500; }

/* Sections */
section { padding: 80px 0; border-bottom: 1px solid var(--rule); }
section:last-of-type { border-bottom: none; }
.section-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--crimson);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-eyebrow .num {
  display: inline-block;
  border: 1px solid var(--crimson);
  padding: 2px 8px;
  border-radius: 100px;
  font-weight: 500;
}

/* Cards / day grid */
.day-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 48px;
}
.day-card {
  background: white;
  border: 1px solid var(--rule);
  padding: 28px 28px 32px;
  position: relative;
  box-shadow: var(--shadow-soft);
}
.day-card.apex {
  background: linear-gradient(180deg, #1a2433, #2a3447);
  color: #fbf3e0;
  border-color: var(--ink);
}
.day-card.apex h3, .day-card.apex .day-num { color: #fbf3e0; }
.day-card .day-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 4rem;
  line-height: 1;
  font-weight: 700;
  color: var(--ink);
  font-style: italic;
}
.day-card .day-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin-top: 6px;
}
.day-card.apex .day-label { color: var(--gold); }
.day-card h3 {
  font-size: 1.6rem;
  margin: 16px 0 10px;
  line-height: 1.2;
}
.day-card .day-summary {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.05rem;
  line-height: 1.4;
  font-style: italic;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.day-card.apex .day-summary { color: #d4d9e2; }
.day-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--rule-soft);
  padding-top: 14px;
  font-size: 0.92rem;
  line-height: 1.5;
}
.day-card.apex ul { border-color: #3a4a62; }
.day-card li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
  color: var(--ink-soft);
}
.day-card.apex li { color: #d4d9e2; }
.day-card li::before {
  content: '◆';
  position: absolute;
  left: 0;
  top: 1px;
  color: var(--crimson);
  font-size: 0.7em;
}
.day-card.apex li::before { color: var(--gold); }
.day-card .apex-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 4px 10px;
  border-radius: 100px;
  margin-top: 14px;
}

/* Fact rows */
.fact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--ink);
}
.fact-row {
  display: grid;
  grid-template-columns: minmax(160px, 220px) 1fr;
  gap: 32px;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.fact-row dt {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faded);
}
.fact-row dd {
  margin: 0;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem;
  line-height: 1.4;
}
.fact-row dd strong { font-weight: 600; color: var(--ink); }
.fact-row dd.mono-dd { font-family: 'JetBrains Mono', monospace; font-size: 0.95rem; }

/* Pull quote */
.pull-quote {
  border-left: 3px solid var(--crimson);
  padding: 16px 0 16px 32px;
  margin: 48px 0;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  line-height: 1.4;
  font-style: italic;
  color: var(--ink-soft);
}
.pull-quote .accent { color: var(--crimson); font-weight: 600; font-style: normal; }

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88rem;
  margin: 24px 0;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--rule);
}
.data-table th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faded);
  font-weight: 500;
  border-bottom: 1px solid var(--ink);
}
.data-table tr:hover td { background: var(--paper-shade); }
.data-table td.num { text-align: right; }
.data-table .apex-row td { background: var(--gold-soft); border-bottom-color: var(--gold); }
.data-table .apex-row td:first-child { border-left: 3px solid var(--gold); padding-left: 13px; }
.tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 100px;
  background: var(--paper-shade);
  color: var(--ink-soft);
}
.tag.danger { background: var(--crimson); color: white; }
.tag.gold { background: var(--gold); color: var(--ink); }
.tag.zone { background: #f3d6d3; color: var(--crimson-deep); }

/* Buttons */
.btn {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 26px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.15s;
  border-bottom: 1px solid var(--ink) !important;
}
.btn:hover { background: var(--crimson); border-color: var(--crimson); transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }

/* Restricted zone callout */
.callout {
  background: white;
  border: 1px solid var(--rule);
  border-left: 4px solid var(--crimson);
  padding: 24px 32px;
  margin: 32px 0;
  position: relative;
  box-shadow: var(--shadow-soft);
}
.callout.gold { border-left-color: var(--gold); }
.callout.dark { background: var(--ink); color: #fbf3e0; border-color: var(--ink); }
.callout h3 { margin-top: 0; }
.callout.dark h3 { color: #fbf3e0; }

/* ASCII art / pre */
pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  line-height: 1.5;
  background: white;
  border: 1px solid var(--rule);
  padding: 20px;
  overflow-x: auto;
  color: var(--ink);
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: #c0c8d4;
  padding: 60px 0 32px;
  margin-top: 80px;
  position: relative;
  z-index: 2;
}
.site-footer a { color: #fbf3e0; border-bottom: 1px solid transparent; }
.site-footer a:hover { border-bottom-color: var(--crimson); }
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}
.site-footer h4 { color: var(--gold); margin-top: 0; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; }
.site-footer .colophon {
  border-top: 1px solid #3a4a62;
  padding-top: 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--ink-faded);
  letter-spacing: 0.05em;
}

/* Misc */
hr.fancy {
  border: none;
  height: 1px;
  background: var(--rule);
  position: relative;
  margin: 60px auto;
  max-width: 200px;
}
hr.fancy::before {
  content: '✦';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--paper);
  padding: 0 12px;
  color: var(--crimson);
  font-size: 0.9rem;
}

.markdown-body h1, .markdown-body h2 { border-bottom: 1px solid var(--rule); padding-bottom: 8px; }
.markdown-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-family: 'JetBrains Mono', monospace; font-size: 0.88rem; }
.markdown-body th, .markdown-body td { padding: 8px 12px; border-bottom: 1px solid var(--rule); text-align: left; }
.markdown-body th { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-faded); border-bottom: 1px solid var(--ink); }
.markdown-body code { background: var(--paper-shade); padding: 0.1em 0.4em; }
.markdown-body blockquote { border-left: 3px solid var(--crimson); padding-left: 20px; color: var(--ink-soft); font-style: italic; margin: 20px 0; }

/* ========================================================================
   MOBILE — applied at 760px and below (tablet portrait & phones)
   ======================================================================== */
@media (max-width: 760px) {
  .wrap, .wrap-narrow { padding: 0 18px; }

  /* Site header */
  .site-header .wrap { padding-top: 12px; padding-bottom: 12px; }
  .brand { font-size: 1.15rem; gap: 6px; }
  .brand small { font-size: 0.58rem; }
  .nav-list { gap: 12px; font-size: 0.7rem; row-gap: 8px; }
  .nav-list a { padding-bottom: 2px; }

  /* Hero */
  .hero { padding: 40px 0 50px; }
  .hero::after { width: 380px; height: 380px; right: -150px; bottom: -100px; }
  .hero-eyebrow { font-size: 0.7rem; margin-bottom: 16px; gap: 8px; }
  .hero-eyebrow::before, .hero-eyebrow::after { width: 18px; }
  .hero-lede { font-size: 1.1rem; margin-top: 20px; }
  .hero-meta { margin-top: 32px; padding-top: 22px; gap: 18px 20px; grid-template-columns: repeat(2, 1fr); font-size: 0.74rem; }
  .hero-meta .value { font-size: 0.95rem; }
  .hero-meta .label { font-size: 0.62rem; }

  /* Sections */
  section { padding: 44px 0; }
  .section-eyebrow { font-size: 0.66rem; }

  /* Day cards — single column on phone */
  .day-grid { gap: 18px; margin-top: 28px; grid-template-columns: 1fr; }
  .day-card { padding: 22px 22px 24px; }
  .day-card .day-num { font-size: 3rem; }
  .day-card h3 { font-size: 1.35rem; }

  /* Fact rows — stack label above value */
  .fact-row { grid-template-columns: 1fr; gap: 6px; padding: 16px 0; }
  .fact-row dt { font-size: 0.7rem; }
  .fact-row dd { font-size: 1.05rem; }
  .fact-row dd.mono-dd { font-size: 0.82rem; }

  /* Tables — horizontal scroll instead of squashing */
  .data-table { font-size: 0.74rem; display: block; overflow-x: auto; white-space: nowrap; }
  .data-table th, .data-table td { padding: 8px 10px; }

  /* Pull quotes */
  .pull-quote { font-size: 1.15rem; padding: 12px 0 12px 18px; margin: 28px 0; }

  /* Callouts */
  .callout { padding: 18px 20px; margin: 22px 0; }

  /* Buttons */
  .btn { padding: 12px 18px; font-size: 0.72rem; }

  /* Pre/code */
  pre { font-size: 0.7rem; padding: 14px; }

  /* Footer */
  .site-footer { padding: 40px 0 24px; margin-top: 50px; }
  .site-footer .footer-grid { gap: 24px; grid-template-columns: 1fr; margin-bottom: 28px; }

  /* Decorative rules */
  hr.fancy { margin: 36px auto; }

  /* Markdown body inside .plan-content etc. */
  .markdown-body table { font-size: 0.74rem; display: block; overflow-x: auto; }
  .markdown-body pre { font-size: 0.7rem; }
}

/* Extra-tight phones */
@media (max-width: 400px) {
  .wrap, .wrap-narrow { padding: 0 14px; }
  .brand { font-size: 1.05rem; }
  .brand small { display: none; }
  .nav-list { gap: 10px; font-size: 0.66rem; }
  .hero-meta { grid-template-columns: 1fr; }
}

/* Make sure tap targets are usable */
@media (hover: none) and (pointer: coarse) {
  .nav-list a, .btn, a.tag { padding-top: 8px; padding-bottom: 8px; }
}