/* OpenRoom static pages — shared stylesheet. No web fonts, no external requests. */

/* Palette matches the app's flat "default" theme: ink on white, one decisive
   blue, borders with real presence. Solid colors only — no shadows, no
   gradients anywhere on these pages. */
:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #4a4f5a;
  --rule: #aab2bf;
  --link: #1d4ed8;
  --code-bg: #eceef2;
  --code-fg: #111111;
  --accent-bg: #eceef2;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d10;
    --fg: #f5f7fa;
    --muted: #a7b0be;
    --rule: #454e5e;
    --link: #4d8dff;
    --code-bg: #1e232b;
    --code-fg: #f5f7fa;
    --accent-bg: #1e232b;
  }
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

::selection {
  background: var(--link);
  color: var(--bg);
}

a {
  color: var(--link);
  text-underline-offset: 0.15em;
}

a:hover {
  text-decoration: none;
}

:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

code,
pre,
kbd {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.875em;
}

code {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

pre {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 0.85rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow-x: auto;
  line-height: 1.45;
}

pre code {
  background: none;
  padding: 0;
  border-radius: 0;
}

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  font-weight: 600;
  margin: 2rem 0 0.6rem;
}

h1 {
  font-size: 1.6rem;
  margin-top: 0;
}

h2 {
  font-size: 1.2rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--rule);
}

h3 {
  font-size: 1rem;
}

h4 {
  font-size: 0.95rem;
}

p,
ul,
ol {
  margin: 0.7rem 0;
}

li {
  margin: 0.25rem 0;
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2rem 0;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 0.9rem 0;
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

th,
td {
  border: 1px solid var(--rule);
  padding: 0.35rem 0.55rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--accent-bg);
  font-weight: 600;
}

.table-wrap {
  overflow-x: auto;
}

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

.small {
  font-size: 0.875rem;
}

/* --- nav / layout --- */

.topnav {
  border-bottom: 1px solid var(--rule);
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
}

.topnav .brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-right: 0.5rem;
}

.topnav .brand img {
  display: block;
  border-radius: 3px;
}

.topnav .nav-cta {
  margin-left: auto;
  background: var(--link);
  color: var(--bg);
  font-weight: 600;
  text-decoration: none;
  padding: 0.45rem 1rem;
  border-radius: 3px;
}

.topnav .nav-cta:hover {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.page {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 4rem;
}

.wide {
  max-width: 72rem;
}

footer.site {
  border-top: 1px solid var(--rule);
  margin-top: 3rem;
  padding-top: 1rem;
  font-size: 0.875rem;
  color: var(--muted);
}

/* --- docs sidebar --- */

.docs-layout {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
}

.toc {
  flex: 0 0 15rem;
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  font-size: 0.875rem;
  border-right: 1px solid var(--rule);
  padding-right: 1rem;
}

.toc h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  border: 0;
  margin: 0 0 0.5rem;
}

.toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: toc;
}

.toc > ol > li {
  counter-increment: toc;
  margin: 0.2rem 0;
}

.toc > ol > li > a::before {
  content: counter(toc) ". ";
  color: var(--muted);
}

.toc a {
  text-decoration: none;
}

.toc a:hover {
  text-decoration: underline;
}

.docs-body {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 48rem;
}

.docs-body section {
  scroll-margin-top: 1rem;
}

@media (max-width: 60rem) {
  .docs-layout {
    display: block;
  }

  .toc {
    position: static;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
    padding: 0 0 1rem;
    margin-bottom: 1.5rem;
    flex: none;
  }
}