/*
 * Flagship look. Brand tokens, exact (grep these):
 *   accent fill            #6366f1
 *   accent text, dark      #818cf8      accent text, light  #4f46e5
 *   dark:  page #0a0a0b  text #f4f4f5  sub #a1a1aa  faint #71717a
 *          line #26262b   grid #ffffff at 5 % alpha   green #10b981
 *   light: page #fafafa  text #0a0a0b  sub #52525b  faint #71717a
 *          line #e4e4e7   grid #18181b at 5 % alpha   green #047857
 *
 * Fonts: no webfont is loaded — the page makes zero third-party requests.
 * Space Mono is used when installed locally; otherwise the system mono stack
 * takes over (owner decision, PLAN risk 10).
 */
:root {
  --accent: #6366f1;
  --font-mono: 'Space Mono', ui-monospace, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  --font-sans: system-ui, -apple-system, 'Segoe UI', sans-serif;
  /* light theme (default) */
  --page: #fafafa;
  --text: #0a0a0b;
  --sub: #52525b;
  --faint: #71717a;
  --line: #e4e4e7;
  --grid: rgba(24, 24, 27, 0.05); /* #18181b at 5 % */
  --accent-text: #4f46e5;
  --green: #047857;
  --panel: #ffffff;
  --bad: #b91c1c;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --page: #0a0a0b;
    --text: #f4f4f5;
    --sub: #a1a1aa;
    --faint: #71717a;
    --line: #26262b;
    --grid: rgba(255, 255, 255, 0.05); /* #ffffff at 5 % */
    --accent-text: #818cf8;
    --green: #10b981;
    --panel: #101012;
    --bad: #f87171;
  }
}
:root[data-theme='dark'] {
  --page: #0a0a0b;
  --text: #f4f4f5;
  --sub: #a1a1aa;
  --faint: #71717a;
  --line: #26262b;
  --grid: rgba(255, 255, 255, 0.05); /* #ffffff at 5 % */
  --accent-text: #818cf8;
  --green: #10b981;
  --panel: #101012;
  --bad: #f87171;
}
:root[data-theme='light'] {
  --page: #fafafa;
  --text: #0a0a0b;
  --sub: #52525b;
  --faint: #71717a;
  --line: #e4e4e7;
  --grid: rgba(24, 24, 27, 0.05); /* #18181b at 5 % */
  --accent-text: #4f46e5;
  --green: #047857;
  --panel: #ffffff;
  --bad: #b91c1c;
}

* {
  box-sizing: border-box;
}
/* Page color + the faint 5 % grid live on the ROOT element: a root
 * background propagates to the canvas and paints the whole scrollable
 * document (and the overscroll area). On <body> with
 * background-attachment: fixed the grid covered only the first viewport
 * height — in full-page captures it stopped partway down the page. */
html {
  background-color: var(--page);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 28px 28px;
  overflow-x: hidden;
}
body {
  margin: 0;
  overflow-x: hidden;
  overflow-wrap: break-word;
  color: var(--text);
  font: 16px/1.65 var(--font-sans);
}
.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px 72px;
  width: 100%;
}
.wrap :is(div, section, dl, dd, dt, li, p, span, h1, h2, h3, h4, a, nav, pre, table) {
  min-width: 0;
}
.wrap > section,
.card,
.note,
.pending,
.verdict > * {
  max-width: 100%;
}

/* ---- header ---- */
/* Brand images (vm-brand README v2 kit). The hero follows the theme toggle,
 * so it is two <img> switched on data-theme, not a <picture> media query.
 * The dividers carry the section title as outlined paths; the real <h2>
 * stays in the DOM, visually hidden. One dark file serves both themes. */
.hero {
  margin: 32px 0 0;
}
.hero img,
img.divider {
  display: block;
  width: 100%;
  height: auto;
}
/* Light is the default, as for the tokens above, so a page without the
 * theme script still shows exactly one hero. */
.hero .only-dark,
:root[data-theme='dark'] .hero .only-light {
  display: none;
}
:root[data-theme='dark'] .hero .only-dark {
  display: block;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .hero .only-light {
    display: none;
  }
  :root:not([data-theme]) .hero .only-dark {
    display: block;
  }
}
img.divider {
  margin: 64px 0 20px;
}
header.top {
  position: relative;
  padding: 32px 0 8px;
  overflow: hidden;
}
/* The wordmark and the box-drawing frames use a stack that starts at Menlo:
 * 'Space Mono' (first in --font-mono) has no U+2588 full-block and no
 * box-drawing glyphs, so those characters fell back to a wider non-mono face
 * (0.82 em advance) — the wordmark outgrew every vw estimate and was clipped
 * below ~960 px. Menlo/Consolas/Liberation Mono carry both glyph sets at one
 * fixed advance. 56 columns x 0.6021 em worst-case advance -> font-size from
 * calc((100vw - 44px) / 35), which fits 360/390/768/1280 with margin. */
pre.wordmark {
  font-family: Menlo, 'SF Mono', ui-monospace, Consolas, 'Liberation Mono', monospace;
  font-size: clamp(6px, calc((100vw - 44px) / 35), 20px);
  font-variant-ligatures: none;
  letter-spacing: 0;
  line-height: 1;
  margin: 0 0 18px;
  color: var(--accent-text);
  white-space: pre;
  padding: 0; /* reset the generic pre chrome */
  background: none;
  border-radius: 0;
  overflow: visible;
  width: max-content;
  max-width: 100%;
}
.tagline {
  color: var(--sub);
  max-width: 62ch;
  margin: 0 0 18px;
}
.header-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}
nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: lowercase;
}
#theme-toggle {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-text);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
}
#theme-toggle:hover {
  border-color: var(--accent-text);
}

/* ---- sections ---- */
h2 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 64px 0 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}
.marker {
  font-family: var(--font-mono);
  color: var(--accent-text);
  margin-right: 10px;
}
.marker::after {
  content: '_'; /* cursor blink — the one animation on the page */
  animation: cursor-blink 1.1s steps(2, start) infinite;
}
@keyframes cursor-blink {
  to {
    visibility: hidden;
  }
}
h3 {
  font-size: 1.05rem;
  margin: 28px 0 8px;
}
h4 {
  font-size: 1rem;
  margin: 20px 0 6px;
}
a {
  color: var(--accent-text);
}
p,
li {
  max-width: 72ch;
  overflow-wrap: anywhere;
}
h1,
h2,
h3,
h4 {
  overflow-wrap: anywhere;
}
.sub {
  color: var(--sub);
  margin: 0 0 8px;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---- cards, badges, meta ---- */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 26px;
  margin: 20px 0;
}
.kind-intro {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin: 14px 0;
}
.kbadge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 9px;
  white-space: nowrap;
}
.kbadge.k-sim {
  color: var(--green);
}
.kbadge.k-agent {
  color: var(--accent-text);
}
.kbadge.k-claude {
  color: var(--sub);
}
.verdict {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  align-items: center;
}
.badge {
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 6vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 4px 18px;
  border: 2px solid currentColor;
  border-radius: 10px;
}
.badge.small {
  font-size: 0.85rem;
  padding: 2px 10px;
}
.keep {
  color: var(--green);
}
.drop {
  color: var(--bad);
}
.inc {
  color: var(--sub);
}
.pend {
  color: var(--faint);
}
.big {
  font-size: 1.35rem;
  overflow-wrap: anywhere;
  font-weight: 700;
}
.met {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--sub);
  margin: 12px 0 0;
  overflow-wrap: anywhere;
}
dl.meta {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 4px 16px;
  margin: 12px 0 0;
  font-size: 0.92rem;
}
dl.meta dt {
  color: var(--sub);
}
dl.meta dd {
  margin: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}
@media (max-width: 560px) {
  dl.meta {
    grid-template-columns: 1fr;
  }
  dl.meta dt {
    margin-top: 6px;
  }
}

/* ---- box-drawing frames (headline numbers) ----
 * Pixel-exact rules: every line of a frame has the same character count and
 * the same font — one family for corners, bars AND letters (Menlo stack),
 * no bold inside the frames (bold rendered at a different advance and broke
 * the side bars), ligatures off, zero letter-spacing, line-height 1,
 * white-space pre. Blocks are separate <pre>s in a wrapping flex row, so
 * narrow viewports reflow instead of clipping. */
.frames-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 14px 20px;
  margin: 18px 0;
}
pre.frames {
  font-family: Menlo, 'SF Mono', ui-monospace, Consolas, 'Liberation Mono', monospace;
  font-size: clamp(9px, 2.6vw, 14px);
  font-variant-ligatures: none;
  font-kerning: none;
  letter-spacing: 0;
  line-height: 1;
  margin: 0;
  padding: 0; /* reset the generic pre chrome */
  background: none;
  border-radius: 0;
  color: var(--text);
  white-space: pre;
}
pre.frames .fl {
  color: var(--sub);
}
pre.frames .fv {
  color: var(--accent-text);
}

/* ---- tables ---- */
.tablewrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 12px 0;
}
table {
  border-collapse: collapse;
  width: 100%;
  min-width: 560px;
  font-size: 0.92rem;
}
th,
td {
  padding: 8px 12px;
  text-align: right;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
th:first-child,
td:first-child {
  text-align: left;
  white-space: normal;
}
th {
  color: var(--sub);
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
tr.sum td {
  font-weight: 700;
  background: color-mix(in srgb, var(--panel) 80%, var(--line));
}
.pos {
  color: var(--green);
}
.neg {
  color: var(--bad);
}
button.rowbtn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-text);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 3px 10px;
  cursor: pointer;
}
button.rowbtn:hover {
  border-color: var(--accent-text);
}

/* ---- history rows (All runs) ----
 * Wide viewports: one grid line per run, table-like. Below 720 px: the same
 * grid re-areas into a stacked card (kind + open, date, model, headline) so
 * no column ever runs off-screen. minmax(0,1fr) + overflow-wrap let the
 * long headlines wrap instead of pushing the row wide. */
.runs-head,
.runrow {
  display: grid;
  grid-template-columns: max-content max-content max-content minmax(0, 1fr) max-content;
  grid-template-areas: 'kind date model headline open';
  column-gap: 18px;
  align-items: center;
}
.runs-head {
  font-family: var(--font-mono);
  color: var(--sub);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
  padding: 6px 0;
}
ul.runs {
  list-style: none;
  margin: 0;
  padding: 0;
}
.runrow {
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
  row-gap: 4px;
}
.rk-kind {
  grid-area: kind;
}
.rk-date {
  grid-area: date;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--sub);
  white-space: nowrap;
}
.rk-model {
  grid-area: model;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--sub);
  overflow-wrap: anywhere;
  min-width: 0;
}
.rk-headline {
  grid-area: headline;
  min-width: 0;
  overflow-wrap: anywhere;
}
.rk-open {
  grid-area: open;
}
@media (max-width: 719px) {
  .runs-head {
    display: none;
  }
  .runrow {
    grid-template-columns: minmax(0, 1fr) max-content;
    grid-template-areas:
      'kind open'
      'date date'
      'model model'
      'headline headline';
    align-items: start;
  }
  .rk-open {
    justify-self: end;
  }
}

/* ---- notes, pending, demo ---- */
.note {
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--panel) 70%, var(--line));
  padding: 12px 18px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
}
.demo {
  font-family: var(--font-mono);
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-align: center;
  padding: 8px;
  letter-spacing: 0.08em;
}
.pending {
  border: 1px dashed var(--faint);
  border-radius: 10px;
  padding: 18px;
  margin: 16px 0;
  color: var(--sub);
}
.pending b {
  color: var(--accent-text);
}

/* ---- charts ---- */
svg {
  width: 100%;
  height: auto;
  display: block;
}
svg text {
  fill: var(--sub);
  font: 11px var(--font-sans);
}
.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--sub);
}

/* ---- code ---- */
code,
pre {
  font-family: var(--font-mono);
  background: color-mix(in srgb, var(--panel) 60%, var(--line));
  border-radius: 4px;
}
code {
  padding: 1px 5px;
  font-size: 0.88em;
}
pre {
  padding: 12px;
  overflow-x: auto;
  max-width: 100%;
}
details.method {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  padding: 4px 26px 18px;
  margin: 16px 0;
}
details.method summary {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-text);
  cursor: pointer;
  padding: 14px 0;
}
footer {
  margin-top: 72px;
  color: var(--sub);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}
:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

/* ---- reduced motion: the single animation stops ---- */
@media (prefers-reduced-motion: reduce) {
  .marker::after {
    animation: none;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    scroll-behavior: auto !important;
  }
}