/* PulseWatch public site: no web fonts, scripts or third-party resources. */
:root {
  color-scheme: light dark;
  --bg: #f8f9f7;
  --surface: #ffffff;
  --text: #1b2024;
  --muted: #58616a;
  --border: #dfe3df;
  --accent: #0c7466;
  --accent-soft: #e2f1ee;
  --note-bg: #fff6e3;
  --note-border: #e8bf68;
  --radius: 14px;
  --max: 48rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1214;
    --surface: #161a1d;
    --text: #e6e9eb;
    --muted: #a0a9b0;
    --border: #283036;
    --accent: #4cc4ae;
    --accent-soft: #14302b;
    --note-bg: #29220f;
    --note-border: #7e6222;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    17px/1.65 system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  background: var(--surface);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
}

header.site {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  padding-block: 0.85rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text);
  font-weight: 700;
  font-size: 1.08rem;
  text-decoration: none;
}

.brand img {
  width: 28px;
  height: 28px;
}

nav.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
}

nav.links a {
  color: var(--muted);
  text-decoration: none;
}

nav.links a:hover {
  color: var(--text);
}

nav.links a[aria-current='page'] {
  color: var(--text);
  font-weight: 600;
}

main {
  padding-block: 2.5rem 3.5rem;
}

h1 {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.32rem;
  line-height: 1.3;
  margin: 2.4rem 0 0.7rem;
}

h3 {
  font-size: 1.06rem;
  margin: 0 0 0.35rem;
}

p,
ul,
ol {
  margin: 0 0 1rem;
}

li + li {
  margin-top: 0.35rem;
}

.lead {
  font-size: 1.16rem;
  color: var(--muted);
  max-width: 40rem;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.note {
  background: var(--note-bg);
  border: 1px solid var(--note-border);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin: 1.5rem 0;
}

.note p:last-child {
  margin-bottom: 0;
}

.summary {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem 0.25rem;
  margin: 1.5rem 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 1rem 0 0.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 2.4rem;
  margin-top: 0.8rem;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.05rem;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
  display: grid;
  place-items: center;
}

.table-scroll {
  overflow-x: auto;
  margin: 0 0 1.25rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

tr:last-child td {
  border-bottom: 0;
}

th {
  font-weight: 650;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--accent-soft);
  padding: 0.1em 0.35em;
  border-radius: 6px;
  overflow-wrap: anywhere;
}

footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-block: 1.5rem;
}

footer.site a {
  color: var(--muted);
}