/* The shinyctl site: one stylesheet for every page.
   Layout: a header, then either the landing page (headline, terminal, sections)
   or a doc page (a short sidebar of pages next to the text). */

@font-face {
  font-family: "Archivo";
  src: url("fonts/archivo-latin.woff2") format("woff2");
  font-weight: 600 800;
  font-stretch: 100% 125%;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/ibm-plex-sans-latin.woff2") format("woff2");
  font-weight: 400 600;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-400-latin.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-500-latin.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #f3f5f8;
  --surface: #ffffff;
  --ink: #121c27;
  --muted: #566475;
  --line: #d7dee7;
  --accent: #1f5fbf;
  --accent-soft: #e4ecf9;
  --warm: #a3620a;
  --drain: #6a4cc0;
  --down: #b63f29;
  --ok: #23784a;
  --code-bg: #eaeef4;

  /* The terminal and code blocks keep one dark look in both themes. */
  --term-bg: #0c1117;
  --term-edge: #1e2834;
  --term-bar: #121a23;
  --term-fg: #cfd8e3;
  --term-dim: #6c7b8c;
  --term-prompt: #7fb0ff;
  --term-cmd: #f4f7fb;
  --term-hl: #182638;
  --term-tab: #8b98a8;

  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --step-1: 1.2rem;
  --step-2: 1.6rem;
  --step-3: clamp(2.1rem, 1.4rem + 3vw, 3.4rem);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d131a; --surface: #141c26; --ink: #e5ebf2; --muted: #96a4b5; --line: #263242;
    --accent: #84aef4; --accent-soft: #1a2940; --warm: #e2b45f; --drain: #b59ef3; --down: #f0907c; --ok: #6fcf97;
    --code-bg: #1a2431;
    --term-bg: #090d12; --term-edge: #263445; --term-bar: #0f161e;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  padding-inline: max(20px, env(safe-area-inset-left, 0px)) max(20px, env(safe-area-inset-right, 0px));
  padding-block: 0 48px;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1080px; margin-inline: auto; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
code, kbd { font-family: var(--mono); font-size: 0.9em; }
h1, h2, h3 { font-family: var(--display); font-stretch: 118%; text-wrap: balance; line-height: 1.12; margin: 0; }
img, svg { max-width: 100%; }

/* Header and footer, the same on every page */
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; padding-block: 22px; flex-wrap: wrap; }
.mark { font-family: var(--display); font-stretch: 125%; font-weight: 800; font-size: 1.25rem; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
.mark span { color: var(--accent); }
.nav { display: flex; align-items: center; gap: 6px 20px; flex-wrap: wrap; font-size: 0.95rem; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 6px; }
.foot { margin-top: 80px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 8px 16px; flex-wrap: wrap; color: var(--muted); font-size: 0.9rem; }

/* Landing page */
.hero { display: grid; gap: 18px; padding-block: 28px 26px; max-width: 840px; }
.eyebrow { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.02em; color: var(--muted); margin: 0; }
.hero h1 { font-size: var(--step-3); font-weight: 800; letter-spacing: -0.02em; }
.lede { font-size: var(--step-1); color: var(--muted); margin: 0; max-width: 62ch; }
.lede strong { color: var(--ink); font-weight: 600; }
.install { display: flex; align-items: stretch; border: 1px solid var(--line); background: var(--surface); border-radius: 10px; overflow: hidden; max-width: 100%; }
.install code { flex: 1; min-width: 0; padding: 12px 14px; white-space: nowrap; overflow-x: auto; font-size: 0.86rem; color: var(--ink); }
.install code b { color: var(--accent); font-weight: 500; user-select: none; }
.install button { font: 500 0.85rem var(--body); border: 0; border-left: 1px solid var(--line); background: var(--accent-soft); color: var(--accent); padding: 0 16px; cursor: pointer; }
.install button:hover { background: var(--accent); color: var(--surface); }
.alt { margin: 0; font-size: 0.9rem; color: var(--muted); }

.watch { margin: 0; }
.term { background: var(--term-bg); border: 1px solid var(--term-edge); border-radius: 12px; overflow: hidden; color: var(--term-fg); box-shadow: 0 18px 50px -24px rgba(8, 16, 28, 0.55); }
.term-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 10px 8px 14px; background: var(--term-bar); border-bottom: 1px solid var(--term-edge); flex-wrap: wrap; }
.scenes { display: flex; gap: 4px; flex-wrap: wrap; }
.scenes button, .play { font: 500 0.8rem var(--mono); color: var(--term-tab); background: transparent; border: 1px solid transparent; border-radius: 6px; padding: 4px 10px; cursor: pointer; }
.play { border-color: var(--term-edge); }
.scenes button:hover, .play:hover { color: var(--term-cmd); }
.scenes button[aria-pressed="true"] { color: var(--term-cmd); border-color: var(--term-edge); background: var(--term-hl); }
.scenes .n { color: var(--term-dim); margin-right: 6px; }
.no-js .scenes, .no-js .play { visibility: hidden; }
.term-body { font-family: var(--mono); font-size: 12.5px; line-height: 1.55; padding: 14px 16px 18px; height: 31em; overflow: auto; white-space: pre; }
.ln { min-height: 1.55em; }
.ln.hl { background: var(--term-hl); box-shadow: -16px 0 0 var(--term-hl), 16px 0 0 var(--term-hl); }
.ps { color: var(--term-prompt); user-select: none; }
.cmd { color: var(--term-cmd); }
.gap { color: var(--term-dim); font-style: italic; }
.cursor { display: inline-block; width: 0.6em; height: 1.1em; vertical-align: -0.18em; background: var(--term-cmd); margin-left: 1px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.term-foot { display: flex; justify-content: space-between; gap: 8px 16px; flex-wrap: wrap; padding: 12px 2px 0; }
.caption { margin: 0; max-width: 70ch; }
.source { margin: 0; font-size: 0.85rem; color: var(--muted); }

section.block { padding-block: 72px 0; }
.block > header { display: grid; gap: 10px; margin-bottom: 28px; max-width: 680px; }
.block h2 { font-size: var(--step-2); font-weight: 700; letter-spacing: -0.01em; }
.block > header p { margin: 0; color: var(--muted); }

.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.fact { background: var(--surface); padding: 22px 24px; display: grid; gap: 8px; align-content: start; min-width: 0; }
.fact h3 { font-size: var(--step-1); font-weight: 700; display: flex; align-items: center; gap: 10px; }
.fact p { margin: 0; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.dot.active { background: var(--accent); }
.dot.down { background: var(--down); }
.dot.drain { background: var(--drain); }
.dot.ok { background: var(--ok); }
.measure { font-family: var(--mono); font-size: 0.82rem; color: var(--ink) !important; border-top: 1px dashed var(--line); padding-top: 10px; margin-top: 4px !important; }

.docs { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.docs li { border-bottom: 1px solid var(--line); }
.docs a { display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr) auto; gap: 18px; align-items: baseline; padding: 16px 4px; text-decoration: none; color: var(--ink); }
.docs a:hover { background: var(--accent-soft); }
.docs b { font-family: var(--display); font-stretch: 112%; font-size: 1.05rem; }
.docs span { color: var(--muted); }
.docs i { font-style: normal; color: var(--accent); font-family: var(--mono); font-size: 0.85rem; }

/* Diagrams (inline SVG, colored from the tokens) */
.diagram { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; overflow-x: auto; padding: 10px; margin: 0; }
.diagram svg { display: block; width: 100%; min-width: 760px; height: auto; }
.diagram svg.timeline { min-width: 820px; }
.diagram svg.arch-narrow { display: none; min-width: 0; max-width: 420px; margin-inline: auto; }
.diagram .hint { display: none; margin: 0 4px 6px; font-size: 0.85rem; color: var(--muted); }
.diagram figcaption { font-size: 0.88rem; color: var(--muted); padding: 6px 8px 2px; }
.d-box { fill: var(--surface); stroke: var(--line); stroke-width: 1.2; }
.d-box.key { stroke: var(--accent); stroke-width: 1.6; }
.d-title { fill: var(--ink); font: 700 15px var(--display); font-stretch: 112%; }
.d-sub { fill: var(--muted); font: 400 12px var(--body); }
.d-label { fill: var(--muted); font: 400 11.5px var(--mono); }
.d-strong { fill: var(--ink); font: 500 11.5px var(--mono); }
.d-wire { stroke: var(--muted); stroke-width: 1.3; fill: none; }
.d-wire.dash { stroke-dasharray: 4 4; }
.d-arrow { fill: var(--muted); }
.d-grid { stroke: var(--line); stroke-width: 1; }
.d-mark { stroke: var(--ink); stroke-width: 1.2; stroke-dasharray: 3 3; }
.r-active { fill: var(--accent); }
.r-warm { fill: var(--warm); }
.r-drain { fill: var(--drain); }
.r-down { fill: var(--down); }
.r-start { fill: var(--muted); fill-opacity: 0.35; }
.r-lb { fill: var(--ok); }
.r-api { fill: var(--muted); fill-opacity: 0.55; }
.r-fade { fill-opacity: 0.45; }
.bar-label.on-light { fill: var(--ink); }
.bar-label { fill: var(--surface); font: 500 11px var(--mono); }
.d-lane { fill: var(--ink); font: 600 13px var(--body); }
.d-lane-sub { fill: var(--muted); font: 400 11.5px var(--body); }
.d-tick { stroke: var(--ok); stroke-width: 2; stroke-linecap: round; }
.d-axis { stroke: var(--muted); stroke-width: 1; }

.cycle { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); gap: 14px; list-style: none; padding: 0; margin: 0; counter-reset: step; }
.cycle li { counter-increment: step; display: grid; gap: 4px; align-content: start; padding-top: 12px; border-top: 2px solid var(--line); min-width: 0; }
.cycle li::before { content: counter(step); font: 500 0.8rem var(--mono); color: var(--accent); }
.cycle b { font-family: var(--display); font-stretch: 112%; font-size: 1.05rem; }
.cycle span { color: var(--muted); font-size: 0.95rem; }

/* Doc pages */
.doc { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 48px; padding-top: 24px; align-items: start; }
.side { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 20px); font-size: 0.95rem; }
.side p { font: 500 0.75rem var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 0 0 8px; }
.side ul { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 2px; }
.side a { display: block; padding: 4px 10px; border-radius: 6px; color: var(--muted); text-decoration: none; }
.side a:hover { color: var(--ink); background: var(--accent-soft); }
.side a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); font-weight: 500; }

.prose { max-width: 72ch; min-width: 0; }
.prose > h1 { font-size: clamp(1.9rem, 1.4rem + 2vw, 2.6rem); font-weight: 800; letter-spacing: -0.015em; }
.prose > .lede { margin-top: 14px; }
.prose h2 { font-size: var(--step-2); font-weight: 700; margin-top: 56px; padding-top: 8px; scroll-margin-top: 20px; }
.prose h3 { font-size: var(--step-1); font-weight: 700; margin-top: 32px; scroll-margin-top: 20px; }
.prose p, .prose ul, .prose ol, .prose table, .prose pre, .prose figure { margin: 14px 0 0; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 6px; }
.prose :not(pre) > code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; overflow-wrap: anywhere; }
.prose pre { background: var(--term-bg); color: var(--term-fg); border: 1px solid var(--term-edge); border-radius: 10px; padding: 14px 16px; overflow-x: auto; font-family: var(--mono); font-size: 13px; line-height: 1.55; position: relative; }
.prose pre code { font-size: inherit; }
.prose pre .c { color: var(--term-dim); }
.copy-code { position: absolute; top: 8px; right: 8px; font: 500 0.75rem var(--mono); color: var(--term-tab); background: var(--term-bar); border: 1px solid var(--term-edge); border-radius: 6px; padding: 3px 8px; cursor: pointer; }
.copy-code:hover { color: var(--term-cmd); }
.prose .diagram { margin-top: 20px; }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.95rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 8px 12px 8px 0; border-bottom: 1px solid var(--line); }
.prose th { font-weight: 600; white-space: nowrap; }
.prose td:first-child { white-space: nowrap; }
.note { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 12px 16px; border-radius: 0 8px 8px 0; }
.note p:first-child { margin-top: 0; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 0.88rem; color: var(--muted); margin-top: 10px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 14px; height: 8px; border-radius: 2px; display: inline-block; }
.pager { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 64px; padding-top: 20px; border-top: 1px solid var(--line); }
.pager a { display: grid; text-decoration: none; }
.pager a span { font: 500 0.75rem var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.pager a b { font-family: var(--display); font-stretch: 112%; font-size: 1.1rem; }
.pager .next { text-align: right; margin-left: auto; }

@media (max-width: 820px) {
  .doc { grid-template-columns: 1fr; gap: 8px; }
  .side { position: static; }
  .side ul { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 12px; }
  .side p:last-of-type, .side ul:last-of-type { display: none; }
}
@media (max-width: 700px) {
  .diagram svg.arch-wide { display: none; }
  .diagram svg.arch-narrow { display: block; }
  .diagram .hint { display: block; }
  .diagram .wide-only { display: none; }
}
@media (max-width: 620px) {
  body { padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px)); }
  .top { padding-block: 16px; }
  .nav { gap: 4px 16px; font-size: 0.92rem; }
  .hero { padding-block: 12px 20px; }
  .docs a { grid-template-columns: 1fr; gap: 2px; }
  .docs i { display: none; }
  .term-body { font-size: 11px; height: 24em; padding: 12px; }
  .term-bar { flex-wrap: nowrap; padding-left: 8px; }
  .scenes { flex-wrap: nowrap; overflow-x: auto; min-width: 0; scrollbar-width: none; }
  .scenes button { white-space: nowrap; }
  .play { flex: none; }
  .fact { padding: 18px; }
  section.block { padding-block: 56px 0; }
  .prose pre { font-size: 12px; }
}
/* Bigger targets for fingers. */
@media (pointer: coarse) {
  .scenes button, .play { padding: 8px 12px; }
  .install button { padding: 0 18px; }
  .copy-code { padding: 6px 10px; }
  .side a { padding: 8px 12px; }
  .nav a { padding-block: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; }
}