/* brevi-lang.org and brevi.run. One stylesheet for every page.
   IBM Plex (SIL Open Font License 1.1, see /OFL.txt) is served from the site itself, so no third-party
   request blocks the first paint. */
@font-face { font-family: 'IBM Plex Sans'; font-weight: 400 600; font-display: swap; src: url(/plex-sans.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-weight: 400; font-display: swap; src: url(/plex-mono-400.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-weight: 500; font-display: swap; src: url(/plex-mono-500.woff2) format('woff2'); }
@font-face { font-family: 'IBM Plex Serif'; font-weight: 500; font-display: swap; src: url(/plex-serif-500.woff2) format('woff2'); }

:root {
  --bg: #fbfbfa;
  --panel: #f1f2f0;
  --panel-2: #e9ebe8;
  --fg: #1b1e1d;
  --muted: #5d6462;
  --rule: #d9dcd9;
  --accent: #1d5b4f;
  --accent-fg: #fbfbfa;
  --mark: #e3efe8;
  --code-fg: #22302c;
  --kw: #1d5b4f;
  --str: #7a4a12;
  --com: #6f7673;
  --warn: #8a5a00;
  --serif: "IBM Plex Serif", Georgia, serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --header-h: 58px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121514; --panel: #1a1e1d; --panel-2: #222826; --fg: #e6e8e6; --muted: #9aa29f; --rule: #2c3230;
    --accent: #7cc4b1; --accent-fg: #0f1a17; --mark: #1d2a26; --code-fg: #d6dcd9; --kw: #7cc4b1; --str: #e0b072;
    --com: #858e8b; --warn: #e0b072;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #121514; --panel: #1a1e1d; --panel-2: #222826; --fg: #e6e8e6; --muted: #9aa29f; --rule: #2c3230;
  --accent: #7cc4b1; --accent-fg: #0f1a17; --mark: #1d2a26; --code-fg: #d6dcd9; --kw: #7cc4b1; --str: #e0b072;
  --com: #858e8b; --warn: #e0b072;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.65 var(--sans); }
.wrap {
  max-width: 1180px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
code, pre, kbd { font-family: var(--mono); font-size: 0.88em; }
:not(pre) > code { background: var(--panel); padding: 0.05em 0.3em; border-radius: 4px; overflow-wrap: anywhere; }
img { max-width: 100%; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-fg); padding: 8px 12px; z-index: 20; border-radius: 4px; }
.skip:focus { left: 8px; }

/* Header */
header.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: saturate(1.4) blur(8px); -webkit-backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--rule); }
header.top .bar { display: flex; align-items: center; gap: 20px; min-height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 500 1.25rem/1 var(--serif); color: var(--fg); text-decoration: none; letter-spacing: -0.01em; white-space: nowrap; }
.brand .mark { flex: none; }
.brand .ver { font: 400 0.72rem var(--mono); color: var(--muted); letter-spacing: 0; }
.brand.small { font-size: 1.05rem; }
.main-nav { display: flex; gap: 4px; margin-left: auto; min-width: 0; font-size: 0.93rem; overflow-x: auto; scrollbar-width: none; }
.main-nav::-webkit-scrollbar { display: none; }
.main-nav a { color: var(--muted); text-decoration: none; padding: 6px 10px; border-radius: 6px; white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; }
.main-nav a:hover { color: var(--fg); background: var(--panel); }
.main-nav a[aria-current="page"] { color: var(--fg); background: var(--panel); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 6px; font-weight: 500; text-decoration: none; border: 1px solid var(--accent); font-size: 0.97rem; }
.btn.primary { background: var(--accent); color: var(--accent-fg); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { color: var(--accent); background: transparent; }
.btn.ghost:hover { background: var(--mark); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 24px; }

/* Code panels */
.term { border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; background: var(--panel); min-width: 0; }
.term .tbar { display: flex; justify-content: space-between; gap: 12px; font: 0.78rem var(--mono); color: var(--muted); padding: 8px 14px; border-bottom: 1px solid var(--rule); }
.term pre { margin: 0; padding: 14px 16px; overflow-x: auto; line-height: 1.55; color: var(--code-fg); font-size: 0.86rem; }
.term pre + .tbar { border-top: 1px solid var(--rule); }
.k { color: var(--kw); font-weight: 500; }
.s { color: var(--str); }
.c { color: var(--com); }
.out { color: var(--muted); }
pre.wrapline { white-space: pre-wrap; word-break: break-word; }

/* Home and brevi.run sections */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; padding-block: 64px 56px; align-items: center; }
.hero h1 { font: 500 clamp(2.05rem, 4.6vw, 3.1rem)/1.1 var(--serif); letter-spacing: -0.02em; margin: 0 0 20px; text-wrap: balance; }
.eyebrow { font: 500 0.78rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin: 0 0 14px; }
.lede { font-size: 1.13rem; color: var(--muted); margin: 0 0 28px; max-width: 34em; }
.lede strong { color: var(--fg); font-weight: 500; }
.status { font: 0.84rem/1.5 var(--mono); color: var(--muted); border-left: 2px solid var(--accent); padding-left: 12px; margin: 0; max-width: 40em; }
.install { display: flex; align-items: center; gap: 10px; background: var(--panel); border: 1px solid var(--rule); border-radius: 8px; padding: 10px 14px; margin: 0 0 24px; font: 0.86rem var(--mono); overflow-x: auto; }
.install .p { color: var(--muted); user-select: none; }
.install code { background: none; padding: 0; white-space: nowrap; }

section.band { border-top: 1px solid var(--rule); padding-block: 64px; }
.band-head { max-width: 46em; margin-bottom: 32px; }
.band-head h2 { font: 500 clamp(1.5rem, 3vw, 2rem)/1.2 var(--serif); margin: 0 0 12px; letter-spacing: -0.01em; text-wrap: balance; }
.band-head p { color: var(--muted); margin: 0; }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 40px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 32px; }
.grid3 > *, .grid2 > * { min-width: 0; }
.point .fig { font: 500 0.84rem var(--mono); color: var(--accent); display: block; margin-bottom: 6px; }
.point h3 { font: 600 1.02rem/1.35 var(--sans); margin: 0 0 6px; }
.point p { color: var(--muted); margin: 0; font-size: 0.96rem; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.steps li { counter-increment: step; border-top: 2px solid var(--accent); padding-top: 14px; min-width: 0; }
.steps li::before { content: counter(step, decimal-leading-zero); font: 500 0.8rem var(--mono); color: var(--accent); display: block; margin-bottom: 6px; }
.steps h3 { margin: 0 0 6px; font: 600 1.02rem/1.35 var(--sans); }
.steps p { margin: 0; color: var(--muted); font-size: 0.96rem; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card { display: block; border: 1px solid var(--rule); border-radius: 8px; padding: 18px 18px 16px; text-decoration: none; color: var(--fg); background: var(--bg); min-width: 0; }
a.card:hover { border-color: var(--accent); background: var(--mark); }
.card h3 { margin: 0 0 4px; font: 600 1rem/1.35 var(--sans); color: var(--fg); }
.card p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.card .go { color: var(--accent); font-size: 0.88rem; margin-top: 8px; display: block; }
.note { color: var(--muted); font-size: 0.9rem; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; }
.split > * { min-width: 0; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 20px 0; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 9px 14px 9px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-weight: 500; color: var(--muted); font-size: 0.82rem; white-space: nowrap; }
td.n, th.n { text-align: right; padding-right: 18px; white-space: nowrap; }
td.win { font-weight: 600; }
table.vs td:first-child { color: var(--muted); }

/* Docs layout */
.docs-grid { display: grid; grid-template-columns: 230px minmax(0, 1fr) 200px; gap: 48px; align-items: start; }
.side { position: sticky; top: calc(var(--header-h) + 24px); max-height: calc(100vh - var(--header-h) - 40px); overflow-y: auto; padding-block: 32px; font-size: 0.92rem; }
.side-menu > summary { display: none; }
.side ul, .toc ul { list-style: none; padding: 0; margin: 0 0 18px; }
.side li a { display: block; padding: 5px 10px; margin-left: -10px; border-radius: 6px; color: var(--muted); text-decoration: none; }
.side li a:hover { color: var(--fg); background: var(--panel); }
.side li a[aria-current="page"] { color: var(--fg); background: var(--mark); font-weight: 500; }
.group { font: 500 0.72rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 0 0 6px; }
.toc { position: sticky; top: calc(var(--header-h) + 24px); padding-block: 40px; font-size: 0.85rem; max-height: calc(100vh - var(--header-h) - 40px); overflow-y: auto; }
.toc a { color: var(--muted); text-decoration: none; display: block; padding: 3px 0; line-height: 1.4; }
.toc a:hover { color: var(--fg); }

.prose { padding-block: 32px 64px; min-width: 0; max-width: 760px; overflow-wrap: break-word; }
.prose .crumb { font: 500 0.75rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin: 8px 0 8px; }
.prose h1 { font: 500 clamp(1.9rem, 4vw, 2.5rem)/1.15 var(--serif); letter-spacing: -0.015em; margin: 0 0 14px; text-wrap: balance; }
.prose .lead { font-size: 1.08rem; color: var(--muted); margin: 0 0 8px; }
.prose .page-meta { font-size: 0.82rem; color: var(--muted); margin: 0 0 28px; }
.prose .page-meta a { color: var(--muted); }
.prose h2 { font: 500 1.55rem/1.25 var(--serif); margin: 48px 0 12px; letter-spacing: -0.01em; padding-top: 20px; border-top: 1px solid var(--rule); }
.prose h3 { font: 600 1.08rem/1.35 var(--sans); margin: 32px 0 8px; }
.prose h4 { font: 600 0.98rem/1.35 var(--sans); margin: 24px 0 6px; }
.prose .anchor { margin-left: 8px; color: var(--rule); text-decoration: none; font-weight: 400; opacity: 0; }
.prose h2:hover .anchor, .prose h3:hover .anchor, .prose .anchor:focus { opacity: 1; color: var(--muted); }
.prose p { margin: 0 0 14px; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 16px; }
.prose li { margin: 4px 0; }
.prose li > ul, .prose li > ol { margin: 4px 0; }
.prose pre.code { background: var(--panel); border: 1px solid var(--rule); border-radius: 8px; padding: 14px 16px; overflow-x: auto; line-height: 1.55; margin: 0 0 18px; color: var(--code-fg); font-size: 0.86rem; }
.prose pre.code code { font-size: 1em; }
.prose .callout { border-left: 3px solid var(--accent); background: var(--mark); padding: 12px 16px; border-radius: 0 6px 6px 0; margin: 0 0 18px; }
.prose .callout p:last-child { margin: 0; }
.prose .callout.warn { border-left-color: var(--warn); }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 32px 0; }
.prose table { font-size: 0.9rem; }
.prose figure.diagram { margin: 0 0 20px; padding: 16px; background: #fbfbfa; border: 1px solid var(--rule); border-radius: 8px; overflow-x: auto; text-align: center; }
.prose figure.diagram img { display: block; margin: 0 auto; max-width: 100%; height: auto; }
/* Code in a table cell wraps only at spaces, so a narrow column is not broken into single letters. */
.prose td code { overflow-wrap: normal; }
.prose figure.diagram a.zoom { display: block; cursor: zoom-in; border-radius: 4px; }
.prose figure.diagram figcaption { margin-top: 10px; font-size: 0.82rem; color: #5d6462; }
/* Full-size diagram view (site/gen.py ZOOM_JS). The diagram keeps its light panel in both themes. */
html.lb-on { overflow: hidden; }
.lightbox { position: fixed; inset: 0; z-index: 50; display: flex; flex-direction: column; background: rgba(18, 21, 20, 0.97); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.lightbox[hidden] { display: none; }
.lb-bar { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; padding: 10px max(16px, env(safe-area-inset-left, 0px)); color: #e6e8e6; font: 500 0.9rem/1 var(--sans); }
.lb-bar button, .lb-bar a { font: inherit; color: inherit; background: #222826; border: 1px solid #3a413f; border-radius: 6px; padding: 8px 12px; min-height: 36px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; }
.lb-bar button:hover, .lb-bar a:hover { background: #2c3230; }
.lb-pct { min-width: 3.4em; text-align: center; font-variant-numeric: tabular-nums; }
.lb-bar .lb-tab { margin-left: auto; }
.lb-bar .lb-close { font-size: 1.3rem; padding: 4px 12px; }
.lb-view { flex: 1; overflow: auto; display: flex; padding: 16px; cursor: grab; overscroll-behavior: contain; }
.lb-view.lb-drag { cursor: grabbing; user-select: none; }
.lb-view img { margin: auto; flex: none; max-width: none; background: #fbfbfa; border-radius: 6px; padding: 12px; box-sizing: content-box; -webkit-user-drag: none; user-select: none; }
@media (max-width: 560px) { .lb-bar .lb-tab { margin-left: 0; } }
.prose .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 20px 0 24px; }
.prevnext { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.prevnext a { border: 1px solid var(--rule); border-radius: 8px; padding: 12px 16px; text-decoration: none; color: var(--fg); font-weight: 500; }
.prevnext a:hover { border-color: var(--accent); }
.prevnext span { display: block; font-size: 0.78rem; color: var(--muted); font-weight: 400; }
.prevnext .next { text-align: right; grid-column: 2; }

/* Pricing page */
.price-hero { padding-block: 64px 8px; }
.price-hero > * { max-width: 46em; }
.price-hero h1 { font: 500 clamp(2.05rem, 4.6vw, 3.1rem)/1.1 var(--serif); letter-spacing: -0.02em; margin: 0 0 20px; text-wrap: balance; }
.plans { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: 16px; align-items: start; }
.plan { border: 1px solid var(--rule); border-radius: 8px; padding: 22px 20px 20px; background: var(--bg); min-width: 0; }
.plan.free { border: 2px solid var(--accent); background: var(--mark); }
.plan .tier { font: 500 0.75rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin: 0 0 6px; }
.plan h2 { font: 500 1.5rem/1.2 var(--serif); margin: 0 0 6px; }
.plan .price { margin: 0 0 4px; color: var(--muted); }
.plan .price b { color: var(--fg); font: 600 1.25rem var(--sans); }
.plan .who { color: var(--muted); font-size: 0.93rem; margin: 0 0 14px; }
.plan ul { margin: 0 0 18px; padding-left: 1.2em; font-size: 0.93rem; }
.plan li { margin: 4px 0; }
.wl { display: grid; gap: 6px; border-top: 1px solid var(--rule); padding-top: 14px; }
.wl label { font-size: 0.85rem; font-weight: 500; }
.wl label span { color: var(--muted); font-weight: 400; }
.wl input { font: inherit; font-size: 0.93rem; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 6px; background: var(--bg); color: var(--fg); width: 100%; min-width: 0; margin-bottom: 6px; }
.wl input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.wl button { cursor: pointer; justify-content: center; font-family: inherit; }
.wl .done { margin: 0; color: var(--fg); font-weight: 500; }
.wl .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
#waitlists { margin-top: 20px; }

/* Footer */
footer.site { border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.9rem; margin-top: 24px; }
footer.site .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 24px; padding-block: 36px 48px; }
footer.site h4 { font: 500 0.72rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; margin: 4px 0 10px; color: var(--muted); }
footer.site a { display: block; color: var(--muted); text-decoration: none; padding: 2px 0; }
footer.site a:hover { color: var(--fg); }
footer.site .about p { margin: 10px 0 0; max-width: 22em; }

@media (max-width: 1100px) {
  .docs-grid { grid-template-columns: 220px minmax(0, 1fr); gap: 40px; }
  .toc { display: none; }
}
@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 36px; padding-block: 40px; }
  .grid3, .cards, .steps { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .grid2, .split, .prose .cards, .plans { grid-template-columns: minmax(0, 1fr); }
  .price-hero { padding-block: 40px 0; }
  section.band { padding-block: 48px; }
  .docs-grid { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .side { position: static; max-height: none; padding-block: 12px 0; overflow: visible; }
  .side-menu { border: 1px solid var(--rule); border-radius: 8px; background: var(--panel); }
  .side-menu > summary { display: block; cursor: pointer; padding: 10px 14px; font-size: 0.92rem; color: var(--muted); list-style: none; }
  .side-menu > summary::-webkit-details-marker { display: none; }
  .side-menu > summary::after { content: "▾"; float: right; }
  .side-menu[open] > summary::after { content: "▴"; }
  .side-menu > summary b { color: var(--fg); font-weight: 500; }
  .side-menu nav { padding: 4px 14px 8px 24px; }
  .prose { padding-top: 16px; }
  footer.site .cols { grid-template-columns: 1fr 1fr; }
  footer.site .about { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .brand .ver { display: none; }
  header.top .bar { gap: 8px; }
  .main-nav a { padding: 6px 7px; }
  .main-nav a.opt { display: none; }
  .main-nav a.gh { font-size: 0; gap: 0; }
  .main-nav a.gh svg { width: 18px; height: 18px; }
  .prevnext { grid-template-columns: 1fr; }
  .prevnext .next { grid-column: 1; }
}