/* shish — GitHub Pages stylesheet.
   Light palette on :root, dark overrides in one place, toggled either by
   prefers-color-scheme or by [data-theme] set from the header button. */

:root {
  --bg: #fbfbfa;
  --bg-soft: #f2f1ee;
  --bg-code: #f6f5f2;
  --fg: #1d1c1a;
  --fg-soft: #5c5952;
  --fg-faint: #8a867d;
  --line: #e2e0da;
  --accent: #b4531f;
  --accent-soft: #f3e3d7;
  --term-bg: #16151a;
  --term-fg: #e6e4de;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --wide: 1180px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #131317;
    --bg-soft: #1a1a20;
    --bg-code: #1b1b22;
    --fg: #e7e5e0;
    --fg-soft: #a9a69f;
    --fg-faint: #7b776f;
    --line: #2a2a33;
    --accent: #e08a4e;
    --accent-soft: #33251c;
    --term-bg: #0d0d11;
    --term-fg: #e6e4de;
  }
}

:root[data-theme='dark'] {
  --bg: #131317;
  --bg-soft: #1a1a20;
  --bg-code: #1b1b22;
  --fg: #e7e5e0;
  --fg-soft: #a9a69f;
  --fg-faint: #7b776f;
  --line: #2a2a33;
  --accent: #e08a4e;
  --accent-soft: #33251c;
  --term-bg: #0d0d11;
  --term-fg: #e6e4de;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 var(--sans);
  -webkit-text-size-adjust: 100%;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, kbd { font-family: var(--mono); }

code {
  background: var(--bg-code);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.08em 0.34em;
  font-size: 0.9em;
}

pre {
  background: var(--bg-code);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  line-height: 1.55;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

pre code { background: none; border: 0; padding: 0; font-size: 0.875rem; }

/* ------------------------------------------------------------------ chrome */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.7rem clamp(1rem, 4vw, 2.5rem);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.brand {
  font: 600 1.05rem/1 var(--mono);
  color: var(--fg);
  letter-spacing: -0.01em;
}

.brand .mark {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border-radius: 5px;
  padding: 0.22em 0.4em;
  margin-right: 0.45em;
}

.topnav { margin-left: auto; display: flex; gap: 1.1rem; flex-wrap: wrap; }
.topnav a { color: var(--fg-soft); font-size: 0.92rem; }
.topnav a:hover { color: var(--accent); }

.themetoggle {
  background: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--fg-soft);
  cursor: pointer;
  font-size: 0.95rem;
  padding: 0.2rem 0.5rem;
}

.sitefoot {
  border-top: 1px solid var(--line);
  margin-top: 4rem;
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem);
  color: var(--fg-faint);
  font-size: 0.85rem;
}

/* ----------------------------------------------------------------- landing */

.landing section {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
}

.hero { text-align: center; padding-top: clamp(2.5rem, 7vw, 5rem) !important; }

.hero h1 {
  font: 700 clamp(3rem, 9vw, 5.5rem)/1 var(--mono);
  letter-spacing: -0.045em;
  margin: 0 0 1rem;
}

.tagline {
  max-width: 46rem;
  margin: 0 auto;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--fg-soft);
}

.cta { display: flex; gap: 0.7rem; justify-content: center; flex-wrap: wrap; margin: 2rem 0 1.5rem; }

.btn {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0.6rem 1.15rem;
  font-size: 0.95rem;
  color: var(--fg);
  background: var(--bg-soft);
}
.btn:hover { text-decoration: none; border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { color: #fff; filter: brightness(1.08); }
.btn.ghost { background: none; }

.badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: center;
  padding: 0;
  margin: 0 0 1rem;
  color: var(--fg-faint);
  font-size: 0.9rem;
}
.badges b { color: var(--fg); font-family: var(--mono); }

.landing h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  letter-spacing: -0.02em;
  margin: 3.5rem 0 1.5rem;
}

.cards { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); }

.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  padding: 1.3rem 1.4rem;
}
.card h3 { margin: 0 0 0.7rem; font-size: 1.1rem; }
.card p { margin: 0 0 0.8rem; color: var(--fg-soft); font-size: 0.95rem; }
.card .more { font-size: 0.9rem; font-weight: 600; }

.sample { margin: 0 0 1.2rem; }

.sizes { border-collapse: collapse; width: 100%; max-width: 34rem; margin: 1.5rem 0 0.6rem; font-size: 0.95rem; }
.sizes th, .sizes td { text-align: left; padding: 0.45rem 0.8rem; border-bottom: 1px solid var(--line); }
.sizes th { color: var(--fg-faint); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
.sizes td:nth-child(2) { font-family: var(--mono); }
.sizes tr.me td { background: var(--accent-soft); font-weight: 600; }

.fineprint { color: var(--fg-faint); font-size: 0.85rem; }

.promise, .status { border-top: 1px solid var(--line); padding-top: 0.5rem !important; }
.promise p, .status p, .demo p, .start p { max-width: 46rem; color: var(--fg-soft); }
.promise b, .status b { color: var(--fg); }

/* -------------------------------------------------------------- doc layout */

.layout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr) 14rem;
  gap: 2.5rem;
  max-width: var(--wide);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 2.5rem);
  align-items: start;
}

.sidebar { position: sticky; top: 4.2rem; font-size: 0.93rem; }
.navgroup h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  margin: 1.4rem 0 0.5rem;
}
.navgroup ul { list-style: none; margin: 0; padding: 0; }
.navgroup li { margin: 0.15rem 0; }
.navgroup a { color: var(--fg-soft); display: block; padding: 0.15rem 0; }
.navgroup a:hover { color: var(--accent); }
.navgroup a.here { color: var(--accent); font-weight: 600; }

.doc { min-width: 0; }
.doc h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); letter-spacing: -0.025em; margin: 0 0 1.5rem; }
.doc h2 { font-size: 1.35rem; margin: 2.5rem 0 0.8rem; padding-top: 0.4rem; border-top: 1px solid var(--line); }
.doc h3 { font-size: 1.08rem; margin: 1.8rem 0 0.6rem; }

/* per-heading link: sits in the left gutter, ink only on hover */
.doc :is(h1, h2, h3, h4) { position: relative; }
.doc .anchor {
  position: absolute; right: 100%; padding-right: 0.35rem;
  color: var(--fg-faint); opacity: 0; text-decoration: none; font-weight: 400;
}
.doc :is(h1, h2, h3, h4):hover .anchor, .doc .anchor:focus { opacity: 1; }
.doc table { border-collapse: collapse; width: 100%; margin: 1.2rem 0; font-size: 0.93rem; display: block; overflow-x: auto; }
.doc th, .doc td { text-align: left; padding: 0.45rem 0.8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { color: var(--fg-faint); font-size: 0.85rem; }
.doc blockquote { margin: 1rem 0; padding-left: 1rem; border-left: 3px solid var(--line); color: var(--fg-soft); }
.doc li { margin: 0.3rem 0; }
.editlink { margin-top: 3rem; font-size: 0.88rem; color: var(--fg-faint); }

.toc { position: sticky; top: 4.2rem; font-size: 0.85rem; }
.toc h3 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fg-faint); margin: 0 0 0.5rem; }
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc li { margin: 0; }
.toc a { display: block; padding: 0.2rem 0 0.2rem 0.8rem; color: var(--fg-soft); }
.toc a:hover { color: var(--accent); }
.toc .lvl3 a { padding-left: 1.6rem; font-size: 0.95em; }

/* --------------------------------------------------------------- playground */

.play .playhead, .play .playgrid { max-width: var(--wide); margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem); }
.play .playhead { padding-top: 2.5rem; }
.play .playhead h1 { font: 700 2.4rem/1 var(--mono); letter-spacing: -0.03em; margin: 0 0 0.8rem; }
.play .playhead p { max-width: 46rem; color: var(--fg-soft); }

.playgrid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(22rem, 1fr)); margin-top: 1.5rem; }
.playgrid[hidden] { display: none; }

/* spans every column of the grid -- used for panels (the visitor editor)
 * that need the full playground width instead of sharing one column. */
.playfull { grid-column: 1 / -1; }
.playsrc.wide { min-height: 16rem; }
.playcol { min-width: 0; display: flex; flex-direction: column; }
.playcol label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fg-faint); margin-bottom: 0.4rem; }

.playsrc {
  width: 100%;
  min-height: 19rem;
  resize: vertical;
  background: var(--bg-code);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
  font: 0.875rem/1.55 var(--mono);
}
.playsrc:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.playsrc[readonly] { color: var(--fg-soft); }
.playsrc.bad { border-color: #e08a8a; }

.term {
  background: var(--term-bg);
  color: var(--term-fg);
  border-color: transparent;
  min-height: 19rem;
  max-height: 19rem;
  overflow: auto;
  white-space: pre-wrap;
  font-size: 0.875rem;
  margin: 0;
}

.playbar { display: flex; align-items: center; gap: 1rem; margin-top: 0.8rem; flex-wrap: wrap; }
.examples { color: var(--fg-faint); font-size: 0.88rem; }
.examples a { margin-left: 0.5rem; }

.exit { display: block; margin-top: 0.8rem; color: #7fd18a; font-size: 0.8rem; }
.exit.bad { color: #e08a8a; }

.playtabs { display: flex; gap: 0.5rem; max-width: var(--wide); margin: 1.5rem auto 0; padding: 0 clamp(1rem, 4vw, 2.5rem); }
.playtab {
  font: 500 0.85rem var(--mono);
  padding: 0.45rem 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: none;
  color: var(--fg-soft);
  cursor: pointer;
}
.playtab:hover { color: var(--fg); border-color: var(--accent); }
.playtab.active { color: #fff; background: var(--accent); border-color: var(--accent); }

.astmodetabs { display: flex; gap: 0.4rem; margin: 0.8rem 0 0.6rem; }
.astmodetab {
  font: 500 0.8rem var(--mono);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: none;
  color: var(--fg-soft);
  cursor: pointer;
}
.astmodetab:hover { color: var(--fg); border-color: var(--accent); }
.astmodetab.active { color: #fff; background: var(--accent); border-color: var(--accent); }

.rename-label { font-size: 0.8rem; color: var(--fg-faint); }
.playbar input[type="text"] {
  font: 0.85rem var(--mono);
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg-code);
  color: var(--fg);
}

.asttree {
  overflow: auto;
  font-size: 0.8rem;
  padding: 0.75rem;
}
.asttree summary { cursor: pointer; color: var(--accent); }
.asttree .astbody { margin-left: 1.1rem; border-left: 1px dashed var(--line); padding-left: 0.6rem; }
.asttree .astrow { margin: 0.15rem 0; }
.asttree .astkey { color: var(--fg-faint); margin-right: 0.3rem; }
.asttree .astleaf { color: var(--fg-soft); }

/* ------------------------------------------------------------ highlighting */

.t-comment { color: var(--fg-faint); font-style: italic; }
.t-string { color: #2f855a; }
.t-keyword { color: #9b2c8f; }
.t-number { color: #b4531f; }
.t-type { color: #2b6cb0; }
.t-preproc { color: #7c5ba6; }
.t-var { color: #b4531f; }
.t-builtin { color: #2b6cb0; }
.t-op { color: var(--fg-soft); }

:root[data-theme='dark'] .t-string,
:root:not([data-theme='light']) .t-string { color: #8fc99a; }
:root[data-theme='dark'] .t-keyword,
:root:not([data-theme='light']) .t-keyword { color: #d99ad0; }
:root[data-theme='dark'] .t-number,
:root[data-theme='dark'] .t-var,
:root:not([data-theme='light']) .t-number,
:root:not([data-theme='light']) .t-var { color: #e0a06a; }
:root[data-theme='dark'] .t-type,
:root[data-theme='dark'] .t-builtin,
:root:not([data-theme='light']) .t-type,
:root:not([data-theme='light']) .t-builtin { color: #7fb3e0; }

@media (max-width: 62rem) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .sidebar, .toc { position: static; }
  .toc { display: none; }
  .sidebar { border-bottom: 1px solid var(--line); padding-bottom: 1rem; }
}