/* Editorial — Monocle / FT magazine system */

:root {
  --bg:      oklch(98% 0.004 95);
  --paper:   oklch(96% 0.006 90);
  --surface: oklch(100% 0.002 95);
  --fg:      oklch(20% 0.018 70);
  --muted:   oklch(48% 0.012 70);
  --hairline:oklch(86% 0.008 90);
  --border:  oklch(78% 0.012 80);
  --rule:    oklch(40% 0.018 70);
  --accent:  oklch(52% 0.10 28);
  --accent-soft: oklch(52% 0.10 28 / 0.10);
  --ink-soft: oklch(20% 0.018 70 / 0.06);

  --font-display: 'Iowan Old Style', 'Charter', 'Source Serif Pro', Georgia, serif;
  --font-body:    -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --maxw: 1280px;
  --maxw-narrow: 920px;
  --pad-x: clamp(20px, 4vw, 48px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--fg); text-decoration: none; }
a:hover { color: var(--accent); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0;
  line-height: 1.15;
  color: var(--fg);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.rule {
  height: 1px;
  background: var(--rule);
  border: 0;
  margin: 0;
}
.rule-hairline {
  height: 1px;
  background: var(--hairline);
  border: 0;
  margin: 0;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}
.container-narrow {
  max-width: var(--maxw-narrow);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* Masthead — shared across pages */
.masthead {
  border-top: 4px solid var(--fg);
  border-bottom: 1px solid var(--hairline);
  background: var(--bg);
}
.masthead-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0 14px;
}
.masthead .title {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -0.01em;
  font-weight: 500;
}
.masthead .title small {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 400;
  margin-left: 10px;
}
.masthead-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  gap: 18px;
}

/* Footer */
.colophon {
  border-top: 1px solid var(--hairline);
  margin-top: 80px;
  padding: 28px 0 48px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

/* Buttons + chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 3px 8px;
  border: 1px solid var(--hairline);
  border-radius: 2px;
  background: var(--surface);
}
.chip-accent {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--fg);
  background: var(--surface);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 14px;
  cursor: pointer;
  border-radius: 2px;
  transition: background 80ms ease, color 80ms ease;
}
.btn:hover { background: var(--fg); color: var(--bg); }
.btn.primary { background: var(--fg); color: var(--bg); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Tabular numerics */
.tnum { font-variant-numeric: tabular-nums; }

/* responsive helpers */
@media (max-width: 720px) {
  .masthead-inner { flex-direction: column; align-items: flex-start; gap: 6px; }
  .masthead-meta { flex-wrap: wrap; gap: 12px; }
}