/* OpenAmbulance — sparse landing */

:root {
  --bg: #0f1210;
  --bg-elev: #161a17;
  --ink: #e8ebe4;
  --muted: #9aa194;
  --faint: #5c6358;
  --line: #2a302b;
  --accent: #c45c3a;
  --accent-soft: #e8a48c;
  --ok: #8faf7a;
  --max: 38rem;
  --wide: 52rem;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 0.5rem 1rem;
  z-index: 10;
}
.skip:focus {
  left: 0;
}

.wrap {
  width: min(100% - 2.5rem, var(--wide));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  padding: 1.25rem 0;
}

.header-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.mark {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

.place {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

.hero {
  padding: 4.5rem 0 3.5rem;
  max-width: var(--max);
  margin-inline: auto;
  width: min(100% - 2.5rem, var(--max));
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-soft);
  font-family: var(--mono);
}

.hero h1 {
  margin: 0 0 1.5rem;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.75rem, 4.5vw, 2.35rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0;
  color: var(--muted);
  font-size: 1.0625rem;
}

.lede strong {
  color: var(--ink);
  font-weight: 500;
}

section {
  padding: 3rem 0;
  border-top: 1px solid var(--line);
}

section h2 {
  margin: 0 0 1.25rem;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.35rem;
  letter-spacing: -0.015em;
}

.section-lede {
  margin: -0.25rem 0 1.5rem;
  color: var(--muted);
  max-width: 36rem;
}

.section-lede em {
  font-style: italic;
  color: var(--ink);
}

/* Bar */
.bar .metric {
  margin: 0 0 0.75rem;
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
}

.bar .num {
  font-family: var(--serif);
  font-size: clamp(3.5rem, 12vw, 5rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ok);
}

.bar .unit {
  font-size: 1.25rem;
  color: var(--muted);
}

.metric-note {
  margin: 0 0 1.25rem;
  max-width: 34rem;
  color: var(--muted);
}

.secondary {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-size: 0.9rem;
  color: var(--faint);
  font-family: var(--mono);
}

.secondary li::before {
  content: "·";
  margin-right: 0.5rem;
  color: var(--line);
}

/* Classes */
.class-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11.5rem, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.class-grid article {
  background: var(--bg-elev);
  padding: 1.25rem 1.15rem 1.4rem;
  margin: 0;
}

.class-grid h3 {
  margin: 0 0 0.4rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-soft);
  font-weight: 500;
}

.class-grid p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.5;
}

/* Flow */
.steps {
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  counter-reset: step;
  max-width: 38rem;
}

.steps li {
  position: relative;
  padding: 0.85rem 0 0.85rem 2.75rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  counter-increment: step;
}

.steps li:last-child {
  border-bottom: 1px solid var(--line);
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.95rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--faint);
  letter-spacing: 0.04em;
}

.steps strong {
  color: var(--ink);
  font-weight: 500;
}

.aside {
  margin: 0;
  font-size: 0.9rem;
  color: var(--faint);
  max-width: 36rem;
}

/* Routing */
.fleet-list {
  margin: 0 0 1.25rem;
  padding-left: 1.15rem;
  color: var(--ink);
  max-width: 36rem;
}

.fleet-list li {
  margin-bottom: 0.4rem;
}

.routing > p:last-child {
  margin: 0;
  color: var(--muted);
  max-width: 40rem;
}

/* Questions */
.qlist {
  margin: 0;
  display: grid;
  gap: 1.5rem;
  max-width: 40rem;
}

.qlist dt {
  font-family: var(--serif);
  font-size: 1.05rem;
  margin: 0 0 0.35rem;
  color: var(--ink);
}

.qlist dd {
  margin: 0;
  color: var(--muted);
}

/* Scope */
.scope-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 2rem;
  max-width: 36rem;
}

.scope-grid h3 {
  margin: 0 0 0.75rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--faint);
  font-weight: 500;
}

.scope-grid ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.scope-grid li {
  margin-bottom: 0.35rem;
}

/* CTA */
.cta {
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 0;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  margin: 0 0 1.25rem;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.15rem;
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 2px;
  transition: opacity 0.15s ease;
}

.btn:hover,
.btn:focus-visible {
  opacity: 0.88;
  outline: none;
}

.ghost {
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--faint);
  letter-spacing: 0.02em;
}

.fine {
  margin: 0;
  font-size: 0.85rem;
  color: var(--faint);
  max-width: 34rem;
}

/* Footer */
.site-footer {
  padding: 2.5rem 0 3.5rem;
}

.footer-inner p {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
}

.footer-inner .muted {
  color: var(--faint);
  max-width: 32rem;
  margin: 0;
}

@media (max-width: 520px) {
  .hero {
    padding-top: 3rem;
  }

  .secondary li::before {
    display: none;
  }

  .secondary {
    flex-direction: column;
    gap: 0.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

.fine a { color: var(--muted); text-underline-offset: 0.15em; }
.fine a:hover { color: var(--ink); }