:root {
  --paper:   #f4f6f7;
  --paper-2: #eef1f3;
  --ink:     #15191e;
  --muted:   #555e67;
  --faint:   #939ca4;
  --rule:    #dde2e6;
  --petrol:  #1f5f7a;
  --serif: "Fraunces", Georgia, serif;
  --sans:  "IBM Plex Sans", system-ui, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  z-index: 50;
  padding: 0 3rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0 0.4rem;
}

.site-wordmark {
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.site-wordmark .q { color: var(--petrol); }

.top-nav {
  display: flex;
  gap: 2rem;
}

.top-nav a {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--faint);
  text-decoration: none;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--ink);
  outline: none;
}

.top-nav a[aria-current="page"] {
  color: var(--ink);
  border-color: var(--petrol);
}

.site-tagline {
  font-family: var(--mono);
  font-size: 0.63rem;
  color: var(--faint);
  letter-spacing: 0.06em;
  padding-bottom: 0.65rem;
}

/* ── Main ── */
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 4rem 3rem 7rem;
}

/* ── Kicker ── */
.kicker {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--petrol);
  margin: 0 0 0.9rem;
}

/* ── Hero ── */
.hero { margin-bottom: 3rem; }

.hero-headline {
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-weight: 400;
  font-size: clamp(1.7rem, 3.8vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.016em;
  color: var(--ink);
  margin: 0 0 1.1rem;
  max-width: 28ch;
}

.hero-lede {
  font-size: 1rem;
  color: #2a2f36;
  line-height: 1.7;
  max-width: 62ch;
  margin: 0 0 1.4rem;
}

/* ── Chips ── */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.6rem;
}

.chip {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--petrol);
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 0.28rem 0.65rem;
  white-space: nowrap;
}

/* ── Signpost ── */
.signpost {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
}

.signpost a {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1.5px solid var(--petrol);
  padding-bottom: 2px;
  transition: color 0.15s ease;
}
.signpost a:hover { color: var(--petrol); }

/* ── Sections ── */
section {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
}

.label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 1.2rem;
}

/* ── Coverage grid ── */
.coverage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--rule);
}

.coverage-card {
  border: none;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 1.1rem 1.2rem 1.2rem;
  background: var(--paper);
  position: relative;
}

.coverage-card:nth-child(2n) { border-right: none; }
.coverage-card:nth-child(3),
.coverage-card:nth-child(4) { border-bottom: none; }

.card-index {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  color: var(--petrol);
  margin: 0 0 0.5rem;
}

.ctitle {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.cdesc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

/* ── Prose ── */
.prose p {
  margin: 0 0 1rem;
  color: #2a2f36;
  max-width: 62ch;
  font-size: 0.98rem;
}
.prose p:last-child { margin-bottom: 0; }

/* ── About hero ── */
.page-head {
  margin-bottom: 2.5rem;
}

.page-head h1 {
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin: 0;
}

/* ── Contact ── */
.contact-email {
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1.5px solid var(--petrol);
  padding-bottom: 2px;
  font-family: var(--sans);
  transition: color 0.15s ease;
}
.contact-email:hover { color: var(--petrol); }

.contact-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 0.55rem;
}

/* ── Footer ── */
footer {
  padding: 1.8rem 3rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--faint);
  letter-spacing: 0.06em;
  max-width: 760px;
  margin: 0 auto;
}

/* ── Animations ── */
@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.rise { animation: rise 0.5s cubic-bezier(0.2, 0.6, 0.2, 1) both; }
.d1 { animation-delay: 0.04s; }
.d2 { animation-delay: 0.12s; }
.d3 { animation-delay: 0.20s; }

@media (prefers-reduced-motion: reduce) {
  .rise { animation: none; }
  * { transition: none !important; }
}

/* ── Mobile ── */
@media (max-width: 640px) {
  .site-header { padding: 0 1.4rem; }
  main { padding: 2.5rem 1.4rem 5rem; }
  footer { padding: 1.4rem 1.4rem; }
  .coverage-grid { grid-template-columns: 1fr; border: none; }
  .coverage-card {
    border: 1px solid var(--rule);
    border-bottom: none;
    margin-bottom: 0;
  }
  .coverage-card:last-child { border-bottom: 1px solid var(--rule); }
  .coverage-card:nth-child(2n) { border-right: 1px solid var(--rule); }
  .top-nav { gap: 1.2rem; }
  .chips { gap: 0.35rem; }
}