/* Leforio site. One stylesheet, no scripts, no web fonts, no external requests.
   Text contrast is at least 7:1 and secondary text and accents at least 4.5:1
   in both colour schemes (checked by scripts/check.mjs). */

:root {
  color-scheme: light dark;
  --bg: #faf6ee;
  --card: #f2ecdf;
  --text: #1b1a17;
  --muted: #4b463d;
  --accent: #1b4d5c;
  --line: #d6cdba;
  --measure: 40rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14191c;
    --card: #1b2326;
    --text: #ede8dc;
    --muted: #c7c0b0;
    --accent: #8ccfd0;
    --line: #34403f;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1.0625rem/1.65 ui-serif, Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.wrap {
  width: 100%;
  max-width: calc(var(--measure) + 2rem);
  margin: 0 auto;
  padding: 0 1rem;
}

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

a:hover {
  text-decoration-thickness: 2px;
}

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

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--text);
  color: var(--bg);
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  z-index: 10;
}

.skip:focus {
  top: 0.75rem;
}

/* Header */

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

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem 1.5rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font: 600 1.25rem/1 ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
  letter-spacing: 0.01em;
  min-height: 44px;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: block;
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font: 500 1rem/1 ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
}

nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.7rem;
  color: var(--text);
  text-decoration: none;
  border-radius: 6px;
}

nav a:hover {
  text-decoration: underline;
}

nav a[aria-current="page"] {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35em;
}

/* Content */

main {
  flex: 1;
  padding-bottom: 3rem;
}

h1,
h2,
h3 {
  font-family: ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
  line-height: 1.25;
  letter-spacing: -0.005em;
}

h1 {
  font-size: clamp(1.8rem, 5.5vw, 2.5rem);
  margin: 2.5rem 0 1rem;
}

h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 0.5rem;
}

h3 {
  font-size: 1.05rem;
  margin: 1.75rem 0 0.25rem;
}

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

ul,
ol {
  padding-left: 1.4rem;
}

li {
  margin-bottom: 0.4rem;
}

.lead {
  font-size: 1.2rem;
  color: var(--text);
}

.muted,
.meta {
  color: var(--muted);
}

.meta {
  font: 0.95rem/1.5 ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
}

.note {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
  margin: 1.5rem 0;
}

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

.hero {
  padding-bottom: 0.5rem;
}

.hero .icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  display: block;
  margin-top: 2.5rem;
}

.hero .icon + h1 {
  margin-top: 1.25rem;
}

/* Support FAQ */

.faq dt {
  font: 600 1.05rem/1.4 ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
  margin-top: 1.5rem;
}

.faq dd {
  margin: 0.35rem 0 0;
}

.toc {
  columns: 1;
  font: 1rem/1.5 ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
}

.toc li {
  margin-bottom: 0.25rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2rem;
  font: 0.95rem/1.6 ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;
  color: var(--muted);
}

.site-footer p {
  margin: 0 0 0.35rem;
}

.site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.site-footer .links a + a {
  margin-left: 1.1rem;
}

@media (min-width: 40rem) {
  .toc {
    columns: 2;
  }
}

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

@media print {
  .site-header nav,
  .skip {
    display: none;
  }
}