/* =====================================================================
   ReviewEngine · landing stylesheet
   Concept: 「评审席 · 朱印」— an engineering document, sealed at the end.
   One stylesheet, zero dependencies. All colors resolve from tokens.
   ===================================================================== */

/* ---------- 1. Design tokens ---------- */
:root {
  /* Core palette — the only hues on the site. */
  --ink:    #0E1116;   /* 墨   deep ink blue-black · page background */
  --paper:  #F2EFE6;   /* 宣   warm paper white · headings & body */
  --seal:   #C0452E;   /* 朱   vermilion · reserved for the score seal */
  --bronze: #B08D4F;   /* 金   hairlines · eyebrows · link hover */
  --ash:    #8A94A3;   /* 灰墨 secondary text */

  /* Derived — alpha / luma variants of the five core tokens only. */
  --surface:      #141922;   /* ink lifted ~4% toward paper (cards, header) */
  --sunken:       #0A0D12;   /* ink deepened (terminal, code blocks) */
  --paper-strong: #FBF8F0;   /* paper +10% (text sitting on the seal) */
  --paper-soft:   rgba(242, 239, 230, .82);
  --paper-dim:    rgba(242, 239, 230, .60);
  --paper-faint:  rgba(242, 239, 230, .40);
  --line:         rgba(176, 141, 79, .32);
  --line-soft:    rgba(176, 141, 79, .16);
  --seal-dark:    #9C3421;

  /* Type stacks */
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans:  "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Type ladder */
  --step-display: clamp(2.1rem, 5.2vw, 3.5rem);
  --step-h2:      clamp(1.55rem, 3vw, 2.1rem);
  --step-h3:      1.1rem;
  --step-body:    1rem;
  --step-small:   .86rem;
  --step-caption: .78rem;

  --leading-display: 1.16;
  --leading-body:    1.75;

  /* Layout */
  --content:    1140px;
  --gutter:     clamp(1.25rem, 4vw, 2.5rem);
  --label-col:  clamp(1.75rem, 4.5vw, 3rem);
  --sec-pad:    clamp(4rem, 8.5vw, 7rem);
  --radius:     10px;
}

/* Per-language font stacks — the TC/JP/KR font FILES are lazy-injected
   by assets/i18n.js only when that language becomes active; en/fr/ru
   keep the SC stack (its Latin coverage serves them). */
html[lang="zh-TW"] {
  --font-serif: "Noto Serif TC", "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-sans:  "Noto Sans TC", "Noto Sans SC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}
html[lang="ja"] {
  --font-serif: "Noto Serif JP", "Noto Serif SC", "Hiragino Mincho ProN", "Songti SC", serif;
  --font-sans:  "Noto Sans JP", "Noto Sans SC", "Hiragino Sans", "Yu Gothic", "PingFang SC", sans-serif;
}
html[lang="ko"] {
  --font-serif: "Noto Serif KR", "Noto Serif SC", "Apple SD Gothic Neo", "Songti SC", serif;
  --font-sans:  "Noto Sans KR", "Noto Sans SC", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}

/* ---------- 2. Base / reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

/* author styles must never override the hidden attribute (e.g. a
   display:flex rule on .rec-line / .rec-badge would resurrect them) */
[hidden] { display: none !important; }

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: var(--step-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--paper);
  line-height: var(--leading-display);
}

h1 { font-size: var(--step-display); letter-spacing: .01em; }
h2 { font-size: var(--step-h2); letter-spacing: .015em; }
h3 { font-size: var(--step-h3); letter-spacing: .01em; }

p { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

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

a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: color .16s ease, border-color .16s ease;
}
a:hover { color: var(--bronze); border-color: var(--bronze); }

::selection { background: rgba(176, 141, 79, .38); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--bronze);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 3. Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--content);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--bronze);
}

.mono { font-family: var(--font-mono); }

/* skip link */
.skip-link {
  position: absolute;
  top: -60px;
  left: var(--gutter);
  z-index: 100;
  padding: .6rem 1rem;
  background: var(--surface);
  color: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: var(--step-small);
  transition: top .2s ease;
}
.skip-link:focus { top: .6rem; }

/* visually hidden but readable by AT */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 4. Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-top: 3px solid var(--bronze);          /* letterhead rule */
  border-bottom: 1px solid var(--line-soft);
  background: rgba(14, 17, 22, .88);
  backdrop-filter: blur(10px);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: .5rem;
  border-bottom: 0;
}
.brand:hover { border-bottom: 0; }
.brand-name {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  letter-spacing: .01em;
  color: var(--paper);
}
.brand-name .brand-accent { color: var(--bronze); }
.brand:hover .brand-name { color: var(--paper); }
.brand-alias {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  color: var(--ash);
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.25rem);
}
.site-nav a {
  display: inline-block;
  padding: .35rem 0;
  border-bottom: 0;
  font-size: var(--step-small);
  letter-spacing: .06em;
  color: var(--paper-dim);
}
.site-nav a:hover { color: var(--bronze); }
.site-nav a[aria-current="page"] {
  color: var(--paper);
  border-bottom: 1px solid var(--bronze);
}
.site-nav .nav-gh a { font-family: var(--font-mono); font-size: .8rem; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: .5rem;
  padding: .45rem .8rem;
  white-space: nowrap;                 /* ja メニュー must not wrap mid-word */
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: var(--step-small);
  cursor: pointer;
}
.nav-toggle:hover { border-color: var(--bronze); color: var(--bronze); }

/* ---------- 4b. Language switcher ---------- */
.site-nav { margin-left: auto; }          /* nav stays flush right, switcher follows */
.lang-switch { position: relative; margin-left: 1.5rem; }
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem .7rem;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--paper-dim);
  font-family: var(--font-sans);
  font-size: var(--step-small);
  cursor: pointer;
}
.lang-btn:hover { color: var(--bronze); border-color: var(--bronze); }
.lang-btn[aria-expanded="true"] { color: var(--paper); border-color: var(--bronze); }
/* the language glyph is an inline <svg> (fill=currentColor) injected by
   i18n.js — CSS mask over an external SVG lost its alpha channel, so the
   icon was invisible; inline SVG keeps the mask-free, color-inheriting path */
.lang-icon {
  width: 15px;
  height: 15px;
  flex: none;
  display: block;
}
.lang-current {
  max-width: 7em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lang-caret {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: .7;
}
.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 150px;
  margin: 0;
  padding: .35rem 0;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, .45);
  display: none;
  z-index: 70;
}
.lang-switch.is-open .lang-menu { display: block; }
.lang-menu [role="option"] {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .45rem .9rem;
  font-size: var(--step-small);
  color: var(--paper-dim);
  cursor: pointer;
}
.lang-menu [role="option"]:hover,
.lang-menu [role="option"]:focus,
.lang-menu [role="option"].is-current {
  color: var(--paper);
  background: var(--sunken);
  outline: none;
}
.lang-menu [role="option"].is-current::before {
  content: "";
  width: 4px;
  height: 4px;
  flex: none;
  border-radius: 50%;
  background: var(--bronze);
}

@media (max-width: 900px) {
  .site-nav { order: 4; }
  .lang-switch { order: 2; margin-left: auto; margin-right: .6rem; }
  .js .nav-toggle { order: 3; }
  .site-nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: .5rem var(--gutter);
    background: var(--surface);
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px rgba(0, 0, 0, .4);
  }
  .site-nav a { display: block; padding: .8rem .25rem; border-bottom: 1px solid var(--line-soft); font-size: 1rem; }
  .site-nav a[aria-current="page"] { border-bottom-color: var(--bronze); }
  .site-nav .nav-gh a { border-bottom: 0; }

  /* JS active: collapsible */
  .js .site-nav.is-open ul { display: flex; }
  .js .nav-toggle { display: inline-flex; }

  /* No JS: simplified horizontal scroll strip, always usable */
  html:not(.js) .site-nav ul {
    display: flex;
    position: static;
    flex-direction: row;
    gap: 1.1rem;
    overflow-x: auto;
    padding: .4rem 0;
    border: 0;
    box-shadow: none;
  }
  html:not(.js) .site-nav a { display: inline-block; padding: .3rem 0; border-bottom: 1px solid var(--line-soft); font-size: var(--step-small); }
  html:not(.js) .site-nav a[aria-current="page"] { border-bottom-color: var(--bronze); }
}

/* ---------- 5. Sections & vertical eyebrows ---------- */
.sec {
  padding-block: var(--sec-pad);
  border-top: 1px solid var(--line-soft);
}
.sec-grid {
  display: grid;
  grid-template-columns: var(--label-col) 1fr;
  column-gap: clamp(.9rem, 3vw, 2rem);
  align-items: stretch;
}
.sec-body { min-width: 0; }
.sec-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.vlabel {
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--font-serif);
  font-size: .8rem;
  letter-spacing: .42em;
  color: var(--bronze);
}
.sec-label::after {
  content: "";
  width: 1px;
  flex: 1 1 auto;
  min-height: 2.5rem;
  background: linear-gradient(var(--line), transparent);
}
/* Latin/Cyrillic vertical labels render sideways (compact); CJK upright */
html[lang="en"] .vlabel,
html[lang="fr"] .vlabel,
html[lang="ru"] .vlabel {
  text-orientation: mixed;
  letter-spacing: .3em;
}
.sec-head { margin-bottom: 2.75rem; }
.sec-lead {
  margin: 0 0 2.5rem;
  max-width: 46em;
  color: var(--paper-soft);
  font-size: 1.02rem;
  line-height: 1.85;
}
.sec-lead code { font-size: .92em; color: var(--paper); }

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .8rem 1.45rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: .02em;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--paper); color: var(--ink); }
.btn-primary:hover { background: var(--bronze); border-color: var(--bronze); color: var(--ink); }
.btn-ghost { background: transparent; color: var(--paper); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--bronze); color: var(--bronze); }
.btn .btn-arrow { font-family: var(--font-mono); font-size: .9em; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
}
/* hero two-column wrapper: single column by default (terminal below text),
   split into text-left + terminal-right from 1200px up */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}
.hero-top {
  display: grid;
  grid-template-columns: var(--label-col) 1fr;
  column-gap: clamp(.9rem, 3vw, 2rem);
  align-items: start;
}
.hero-vlabel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .9rem;
}
.hero-vlabel::after {
  content: "";
  width: 1px;
  height: 2.25rem;
  background: var(--line);
}
.hero-head { max-width: 58ch; min-width: 0; }   /* grid track may shrink below nowrap pre content */
.hero-title { margin: .25rem 0 1.25rem; }
.hero-title .mark {
  background: linear-gradient(var(--bronze), var(--bronze)) no-repeat 0 100% / 100% 2px;
  padding-bottom: .1em;
}
.hero-sub {
  margin-bottom: 1.9rem;
  color: var(--paper-soft);
  font-size: 1.05rem;
  line-height: 1.85;
}
.hero-sub .en-line { display: block; color: var(--paper-dim); font-size: .92rem; margin-bottom: .7rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; }
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.4rem;
  margin-top: 2.2rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--ash);
}
.hero-meta li { display: inline-flex; align-items: center; gap: .5rem; }
.hero-meta li::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--bronze); opacity: .7; }

/* system-aware install recommendation (index hero) — .code card per OS,
   shown only when JS detects the OS; links row sits below the card */
.rec-code { max-width: 640px; }
.rec-links {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem 1.2rem;
  margin-top: .55rem;
  max-width: 640px;
  font-size: var(--step-small);
}
.rec-links a {
  color: var(--paper-dim);
  border-bottom: 1px solid var(--line-soft);
}
.rec-links a:hover { color: var(--bronze); border-bottom-color: var(--bronze); }

/* terminal */
.terminal-wrap { position: relative; margin-top: clamp(2.75rem, 5vw, 3.75rem); }
.terminal {
  position: relative;
  max-width: 860px;
  margin-inline: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--sunken);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .45);
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .65rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  background: var(--surface);
}
.terminal-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ash); opacity: .5; }
.terminal-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--ash);
}
.terminal-screen {
  padding: 1.05rem 1.25rem 1.25rem;
  font-family: var(--font-mono);
  font-size: .84rem;
  line-height: 1.62;
  color: var(--paper-soft);
  overflow: auto;
  max-height: 480px;
  -webkit-overflow-scrolling: touch;
}
.terminal .ln { display: block; white-space: pre; }
.ln-cmd { color: var(--paper); }
.ln-cmd .prompt { color: var(--bronze); }
.ln-ok { color: var(--paper-soft); }
.ln-ok .ok { color: var(--bronze); }
.ln-muted { color: var(--ash); }
.ln-sep { color: var(--line); }
.ln-score { color: var(--paper); }
.terminal-screen .cursor {
  display: inline-block;
  width: .55em;
  height: 1em;
  margin-left: 2px;
  vertical-align: -0.15em;
  background: var(--paper);
  animation: blink 1.05s steps(2, start) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
  .terminal-screen .cursor { animation: none; opacity: .6; }
}

/* hero seal — the one bold element
   selector carries .terminal-wrap so `position:absolute` beats the
   later `.seal { position:relative }` (equal specificity would lose) */
.terminal-wrap .seal-hero {
  position: absolute;
  right: clamp(.5rem, 6vw, 2.5rem);
  bottom: -2.1rem;
}

/* ---------- 8. The seal (朱印) ---------- */
.seal {
  position: relative;
  width: 104px;
  height: 104px;
  overflow: visible;
}
.seal-lg { width: 132px; height: 132px; }

.seal-disc {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 26%, rgba(255, 255, 255, .14), transparent 52%),
    var(--seal);
  filter: url(#stamp-rough);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .4);
}
.seal-disc::before {
  content: "";
  position: absolute;
  inset: 17%;
  border: 1px solid rgba(255, 255, 255, .38);
  border-radius: 50%;
}
.seal-ring { position: absolute; inset: 0; width: 100%; height: 100%; }
.seal-ring text {
  font-family: var(--font-mono);
  fill: var(--paper-strong);
  font-weight: 500;
}
.seal-core {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--paper-strong);
}
.seal-score {
  font-family: var(--font-serif);
  font-size: 2.55rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
}
.seal-lg .seal-score { font-size: 3.15rem; }
.seal-denom { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; opacity: .85; }
.seal-tag {
  margin-top: .3rem;
  font-family: var(--font-mono);
  font-size: .58rem;
  letter-spacing: .34em;
  opacity: .9;
}

/* stamp-in motion — played once when the class lands */
.js .seal {
  opacity: 0;
  transform: scale(1.24) rotate(-9deg);
  transition: opacity .22s ease, transform .5s cubic-bezier(.16, 1.45, .3, 1);
  will-change: transform, opacity;
}
.js .seal.is-stamped {
  opacity: 1;
  transform: scale(1) rotate(-1.5deg);
}

/* ---------- 9. Stats strip ---------- */
.stats {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(var(--surface), var(--ink));
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
}
.stat { border-left: 1px solid var(--line-soft); padding-left: 1.5rem; }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.2vw, 2.3rem);
  font-weight: 700;
  color: var(--paper);
  line-height: 1.2;
  letter-spacing: .01em;
}
.stat-label { display: block; margin-top: .45rem; color: var(--ash); font-size: var(--step-small); line-height: 1.6; }
.stats-note {
  margin-top: 0;
  padding-bottom: 1.6rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--ash);
}

/* ---------- 10. Workflow steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}
.step-no {
  display: block;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .18em;
  color: var(--bronze);
  margin-bottom: .9rem;
}
.step h3 { margin-bottom: .55rem; font-size: 1.05rem; }
.step p { color: var(--paper-dim); font-size: var(--step-small); line-height: 1.75; }

/* ---------- 11. Report sample ---------- */
.report-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.findings { display: grid; gap: 1.5rem; }
.finding {
  padding: 1.4rem 1.5rem 1.5rem;
  border: 1px solid var(--line-soft);
  border-left-width: 2px;
  border-radius: var(--radius);
  background: var(--surface);
}
.finding-critical { border-left-color: var(--seal); }
.finding-high { border-left-color: var(--bronze); }
.finding-head { display: flex; align-items: center; gap: .75rem; margin-bottom: .85rem; }
.finding-sev {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: .2rem .55rem;
  border: 1px solid;
  border-radius: 4px;
}
.sev-critical { color: var(--seal); border-color: rgba(192, 69, 46, .5); }
.sev-high { color: var(--bronze); border-color: var(--line); }
.finding-expert { font-family: var(--font-mono); font-size: .8rem; color: var(--ash); }
.finding h3 { font-size: 1.06rem; margin-bottom: .9rem; }
.finding-meta { display: grid; grid-template-columns: 1fr 1fr; gap: .4rem 1.5rem; margin-bottom: .9rem; }
.finding-meta > div { display: flex; gap: .6rem; font-size: var(--step-small); }
.finding-meta dt { color: var(--ash); }
.finding-meta dd { margin: 0; color: var(--paper-soft); }
.finding-meta .wide { grid-column: 1 / -1; }
.finding-evidence {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--paper-soft);
  padding: .7rem .9rem;
  background: var(--sunken);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  margin-bottom: .75rem;
  overflow-wrap: anywhere;
}
.finding-evidence code { color: var(--paper); }
.finding-rec { font-size: var(--step-small); color: var(--paper-dim); }
.finding-rec strong { color: var(--paper-soft); font-weight: 500; }

.report-side { display: grid; gap: 2rem; }
.score-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .86rem;
}
.score-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ash);
  padding: .5rem .55rem;
  border-bottom: 1px solid var(--line);
}
.score-table td {
  padding: .5rem .55rem;
  border-bottom: 1px solid var(--line-soft);
  color: var(--paper-soft);
}
.score-table td.num { font-family: var(--font-mono); text-align: right; color: var(--paper); }
.score-table tfoot td {
  border-bottom: 0;
  border-top: 1px solid var(--line);
  color: var(--paper);
  font-weight: 500;
}
.score-table tfoot td.num { color: var(--bronze); }

.report-seal-block { display: flex; flex-direction: column; align-items: center; gap: 1rem; padding: 1.75rem 1rem 1.25rem; }
.report-seal-caption { font-family: var(--font-mono); font-size: .78rem; letter-spacing: .08em; color: var(--ash); }
.report-seal-caption b { color: var(--paper); font-weight: 500; }

/* ---------- 12. Deployment cards ---------- */
.cards-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.deploy-card {
  min-width: 0;               /* let 1fr tracks shrink below chip content */
  padding: 1.5rem 1.4rem 1.6rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color .18s ease, transform .18s ease;
}
.deploy-card:hover { border-color: var(--line); transform: translateY(-2px); }
.deploy-glyph {
  display: inline-block;
  margin-bottom: 1.1rem;
  padding: .35rem .6rem;
  font-size: .74rem;
  color: var(--bronze);
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  background: var(--sunken);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.deploy-card h3 { margin-bottom: .5rem; font-size: 1.05rem; }
.deploy-card p { color: var(--paper-dim); font-size: var(--step-small); line-height: 1.7; }

/* ---------- 13. CTA band ---------- */
.cta-band {
  border-top: 1px solid var(--line);
  text-align: center;
  padding-block: clamp(4rem, 8vw, 6rem);
}
.cta-band h2 { margin-bottom: 1rem; }
.cta-band p { max-width: 40em; margin: 0 auto 2rem; color: var(--paper-dim); }

/* ---------- 14. Board page — mechanism + expert cards ---------- */
.mech-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.75rem;
}
.mech-item { padding-top: 1.3rem; border-top: 1px solid var(--line); }
.mech-item h3 { margin-bottom: .55rem; font-size: 1.02rem; }
.mech-item p { color: var(--paper-dim); font-size: var(--step-small); line-height: 1.75; }
.mech-item .mech-k { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; color: var(--bronze); display: block; margin-bottom: .6rem; }

.expert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.expert-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem 1.5rem 1.6rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color .18s ease;
}
.expert-card:hover { border-color: var(--line); }
.expert-head { display: flex; flex-direction: column; gap: .2rem; }
.expert-role { font-family: var(--font-serif); font-size: 1.08rem; color: var(--paper); }
.expert-title { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .05em; color: var(--ash); }
.expert-weight { display: flex; align-items: center; gap: .8rem; }
.expert-weight-track { flex: 1; height: 3px; border-radius: 2px; background: var(--line-soft); overflow: hidden; }
.expert-weight-fill { display: block; height: 100%; width: var(--w, 0%); background: var(--bronze); }
.expert-weight-num { font-family: var(--font-mono); font-size: .72rem; color: var(--ash); white-space: nowrap; }
.expert-focus { font-size: var(--step-small); color: var(--paper-dim); line-height: 1.7; }
.expert-principles { border-top: 1px solid var(--line-soft); padding-top: .9rem; display: grid; gap: .5rem; }
.expert-principles li {
  position: relative;
  padding-left: 1rem;
  font-size: var(--step-small);
  color: var(--paper-dim);
  line-height: 1.65;
}
.expert-principles li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 5px;
  height: 1px;
  background: var(--bronze);
  opacity: .7;
}

/* ---------- 15. Features page ---------- */
.feature { margin-bottom: 3.25rem; }
.feature:last-child { margin-bottom: 0; }
.feature-head { display: flex; flex-direction: column; gap: .3rem; margin-bottom: 1.1rem; }
.feature-head h3 { font-size: 1.3rem; }
.feature-k { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--bronze); }
.feature-body p { max-width: 56em; color: var(--paper-soft); line-height: 1.85; }
.feature-body p + p { margin-top: .9rem; }
.feature-body .inline-code {
  font-family: var(--font-mono);
  font-size: .86em;
  color: var(--paper);
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: .08em .42em;
}
.feature-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 1.4rem; }
.feature-cols .col {
  padding: 1.3rem 1.4rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--surface);
}
.feature-cols .col h4 { margin: 0 0 .5rem; font-family: var(--font-sans); font-size: .95rem; font-weight: 600; color: var(--paper); }
.feature-cols .col p { font-size: var(--step-small); color: var(--paper-dim); line-height: 1.75; }
.feature-cols .col code { font-family: var(--font-mono); font-size: .82em; color: var(--paper); }

.chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
  margin-top: 1.4rem;
}
.chain-step {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--paper-soft);
  padding: .4rem .75rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: var(--surface);
}
.chain-arrow { font-family: var(--font-mono); font-size: .8rem; color: var(--bronze); }

.provider-chips { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.3rem; }
.provider-chip {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--bronze);
  padding: .4rem .85rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
}

/* data table */
.table-scroll { overflow-x: auto; margin-top: 1.6rem; border: 1px solid var(--line-soft); border-radius: var(--radius); }
/* visible overflow affordance (desktop): right-edge fade only when scrollable */
.table-scroll.is-overflow {
  -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 32px), transparent);
  mask-image: linear-gradient(to right, #000 calc(100% - 32px), transparent);
}
.table-scroll::-webkit-scrollbar { height: 8px; }
.table-scroll::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }
.table-scroll::-webkit-scrollbar-thumb:hover { background: var(--bronze); }
.table-scroll::-webkit-scrollbar-track { background: transparent; }
.table-scroll { scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
  min-width: 620px;
}
.data-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ash);
  padding: .85rem 1.1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.data-table td {
  padding: .8rem 1.1rem;
  border-bottom: 1px solid var(--line-soft);
  color: var(--paper-soft);
}
.data-table tr:last-child td { border-bottom: 0; }
.data-table td.mono { font-family: var(--font-mono); color: var(--paper); white-space: nowrap; }
.data-table .row-head { color: var(--paper); }
.data-table tfoot td {
  border-top: 1px solid var(--line);
  color: var(--paper-dim);
  font-size: var(--step-small);
}

/* ---------- 16. Quickstart — code & tables ---------- */
.code {
  position: relative;
  margin: 1.4rem 0;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--bronze);
  border-radius: var(--radius);
  background: var(--sunken);
  overflow: hidden;
  transition: border-color .18s ease;
}
.code.is-recommended { border-color: var(--bronze); }   /* system-matched install card */
.code-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: .5rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ash);
}
.code-label-left { display: flex; align-items: center; gap: .6rem; min-width: 0; flex-wrap: wrap; }
.rec-badge {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: .12rem .55rem;
  font-size: .62rem;
  letter-spacing: .08em;
  text-transform: none;        /* the label bar uppercases everything; the pill keeps its own case */
  color: var(--bronze);
  border: 1px solid var(--line);
  background: var(--sunken);
  border-radius: 999px;
}
.code.is-recommended .code-label { border-bottom-color: var(--bronze); }
.code-label .code-copy {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  background: none;
  border: 0;
  padding: .15rem .35rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--ash);
  cursor: pointer;
  border-radius: 4px;
}
.code-label .code-copy:hover { color: var(--bronze); }
.code-label .code-copy.is-copied { color: var(--bronze); }
.code pre {
  margin: 0;
  padding: 1.05rem 1.2rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.65;
  color: var(--paper-soft);
}
/* visible overflow affordance: right-edge fade only when scrollable */
.code pre.is-overflow {
  -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 32px), transparent);
  mask-image: linear-gradient(to right, #000 calc(100% - 32px), transparent);
}
.code pre::-webkit-scrollbar { height: 8px; }
.code pre::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }
.code pre::-webkit-scrollbar-thumb:hover { background: var(--bronze); }
.code pre::-webkit-scrollbar-track { background: transparent; }
.code pre { scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.code pre .cm { color: var(--ash); }
.code pre .cl { color: var(--bronze); }

/* command table */
.cmd-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
  margin-top: 1.6rem;
}
.cmd-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ash);
  padding: .7rem .9rem;
  border-bottom: 1px solid var(--line);
}
.cmd-table td {
  padding: .7rem .9rem;
  border-bottom: 1px solid var(--line-soft);
  color: var(--paper-soft);
}
.cmd-table td.cmd {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--paper);
  white-space: nowrap;
}
.cmd-table tr:last-child td { border-bottom: 0; }

/* integration rows */
.integrations { display: grid; gap: .9rem; margin-top: 1.6rem; }
.integration {
  min-width: 0;             /* 1fr track may shrink below inline-code min-content */
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 1rem 1.2rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--surface);
}
.integration-name { font-family: var(--font-serif); font-size: 1rem; color: var(--paper); }
.integration-desc {
  min-width: 0;
  font-size: var(--step-small);
  color: var(--paper-dim);
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.integration-desc code {
  font-family: var(--font-mono);
  font-size: .86em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* callout */
.callout {
  margin-top: 1.6rem;
  padding: 1.1rem 1.3rem;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--bronze);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: var(--step-small);
  color: var(--paper-dim);
  line-height: 1.8;
}
.callout code { font-family: var(--font-mono); font-size: .9em; color: var(--paper); }
.callout strong { color: var(--paper-soft); font-weight: 500; }

/* page hero (sub pages) */
.page-hero { padding-block: clamp(3rem, 6vw, 4.75rem) clamp(2.5rem, 5vw, 3.75rem); }
.page-hero .hero-title { margin-bottom: 1.1rem; }
.page-hero .hero-sub { margin-bottom: 0; }

/* ---------- 16b. Docs portal (docs.html) ---------- */
.docs-layout {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
  padding-block: 2.5rem 4rem;
}
.doc-tree {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 112px);
  overflow-y: auto;
  padding-right: 1.25rem;
  border-right: 1px solid var(--line-soft);
}
.doc-tree-toggle { display: none; }
.doc-group {
  margin: 1.5rem 0 .5rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--bronze);
}
.doc-group:first-child { margin-top: 0; }
.doc-tree a {
  display: block;
  padding: .28rem 0 .28rem .8rem;
  border-left: 2px solid transparent;
  border-bottom: 0;
  color: var(--paper-dim);
  font-size: .86rem;
  line-height: 1.55;
}
.doc-tree a:hover { color: var(--bronze); }
.doc-tree a[aria-current="true"] { color: var(--paper); border-left-color: var(--bronze); }
.doc-badge {
  display: inline-block;
  margin-left: .45rem;
  padding: 0 .4rem;
  font-size: .6rem;
  letter-spacing: .06em;
  color: var(--bronze);
  border: 1px solid var(--line);
  border-radius: 999px;
  vertical-align: 1px;
  white-space: nowrap;
}
.doc-main { min-width: 0; }
.doc-state { padding: 3.5rem 0; text-align: center; color: var(--ash); font-size: var(--step-small); }
.doc-error p { margin-bottom: 1rem; }
.doc-retry {
  padding: .5rem 1.2rem;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: var(--step-small);
  cursor: pointer;
}
.doc-retry:hover { border-color: var(--bronze); color: var(--bronze); }

.doc-content { min-width: 0; }
.doc-content h1 { font-size: clamp(1.5rem, 3vw, 1.95rem); margin: 0 0 1.2rem; line-height: 1.3; }
.doc-content h2 { font-size: 1.4rem; margin: 2.2rem 0 .9rem; padding-bottom: .45rem; border-bottom: 1px solid var(--line-soft); }
.doc-content h3 { font-size: 1.14rem; margin: 1.8rem 0 .7rem; }
.doc-content h4 { font-size: 1rem; margin: 1.5rem 0 .6rem; }
.doc-content p { margin: 0 0 1rem; color: var(--paper-soft); line-height: 1.85; }
.doc-content ul, .doc-content ol { margin: 0 0 1.1rem 1.4rem; color: var(--paper-soft); line-height: 1.8; }
.doc-content li { margin-bottom: .3rem; }
.doc-content li::marker { color: var(--bronze); }
.doc-content code {
  font-family: var(--font-mono);
  font-size: .86em;
  color: var(--paper);
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: .08em .4em;
}
.doc-content pre {
  margin: 0 0 1.2rem;
  padding: 1rem 1.15rem;
  background: var(--sunken);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--bronze);
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.65;
  color: var(--paper-soft);
}
.doc-content pre code { background: none; border: 0; padding: 0; font-size: inherit; }
.doc-content blockquote {
  margin: 0 0 1.2rem;
  padding: .4rem 1rem;
  border-left: 2px solid var(--line);
  color: var(--paper-dim);
}
.doc-content blockquote p { margin: 0; color: var(--paper-dim); }
.doc-content hr { border: 0; border-top: 1px solid var(--line-soft); margin: 2rem 0; }
.doc-content table { min-width: 100%; }
.doc-content .table-scroll { margin: 0 0 1.2rem; }
.doc-content strong { color: var(--paper); font-weight: 600; }
.doc-content em { color: var(--paper-soft); }

@media (max-width: 900px) {
  .docs-layout { grid-template-columns: 1fr; gap: 1rem; }
  .doc-tree {
    position: static;
    max-height: none;
    padding-right: 0;
    border-right: 0;
    display: none;
  }
  .doc-tree.is-open { display: block; }
  .doc-tree-toggle {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .45rem .85rem;
    margin-bottom: 1rem;
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--paper-dim);
    font-family: var(--font-sans);
    font-size: var(--step-small);
    cursor: pointer;
  }
  .doc-tree-toggle:hover { border-color: var(--bronze); color: var(--bronze); }
}

/* ---------- 17. Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 3.5rem 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.6fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line-soft);
}
.footer-brand .brand-name { font-size: 1.3rem; }
.footer-tag { margin-top: .8rem; max-width: 34em; color: var(--paper-dim); font-size: var(--step-small); line-height: 1.8; }
.footer-license { margin-top: 1.1rem; font-family: var(--font-mono); font-size: .76rem; letter-spacing: .04em; color: var(--ash); }
.footer-h { font-size: .74rem; letter-spacing: .18em; text-transform: uppercase; color: var(--bronze); font-family: var(--font-mono); margin-bottom: 1rem; }
.footer-col ul { display: grid; gap: .6rem; }
.footer-col a { font-size: var(--step-small); color: var(--paper-dim); }
.footer-col p { font-size: var(--step-small); color: var(--paper-dim); line-height: 1.75; }
.footer-col .github-url { font-family: var(--font-mono); font-size: .76rem; overflow-wrap: anywhere; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 2rem;
  justify-content: space-between;
  padding-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--ash);
}

/* ---------- 18. Reveal ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .7s cubic-bezier(.2, .7, .2, 1);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 19. Responsive ---------- */
/* wide screens: hero becomes two columns — text left, terminal right.
   The container widens slightly from 1200px and further from 1600px so a
   wide viewport never leaves a lopsided empty right band. */
@media (min-width: 1200px) {
  .hero .container { max-width: min(1320px, calc(100vw - 4rem)); }
  .hero-grid {
    grid-template-columns: minmax(0, 720px) minmax(0, 600px);
    gap: clamp(1.25rem, 2.5vw, 2.25rem);   /* tighter than the previous 4vw/3.5rem */
    align-items: center;
    justify-content: center;               /* keep the two columns tight and centered */
  }
  .hero-grid .terminal-wrap { margin-top: 0; }
  .hero-head { max-width: 72ch; }          /* let the text fill the left column so the terminal reads closer */
}
@media (min-width: 1600px) {
  .hero .container { max-width: min(1560px, calc(100vw - 6rem)); }
}

@media (max-width: 1024px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  /* let the long Homebrew chip wrap instead of forcing the track wide */
  .deploy-glyph { white-space: normal; overflow-wrap: anywhere; }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .report-layout { grid-template-columns: 1fr; }
  .report-side { grid-template-columns: 1fr 1fr; align-items: start; }
  .mech-list { grid-template-columns: 1fr; gap: 1rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.75rem 1.5rem; }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
}

@media (max-width: 640px) {
  .header-inner { gap: .5rem; }            /* keep brand + lang + menu within 390 */
  .brand-alias { display: none; }          /* decorative reng alias yields space */
  .lang-current { max-width: 5em; }        /* e.g. Français truncates w/ ellipsis */
  .sec-grid { column-gap: .9rem; }
  .steps { grid-template-columns: 1fr; }
  .cards-4 { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .report-side { grid-template-columns: 1fr; }
  .feature-cols { grid-template-columns: 1fr; }
  .integration { grid-template-columns: 1fr; gap: .35rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .terminal-wrap .seal-hero { right: .75rem; bottom: -1.9rem; }
  .hero-meta { gap: .5rem 1rem; }
  .terminal-screen { font-size: .78rem; padding-inline: 1rem; }
}

/* ---------- 20. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  .js .seal { opacity: 1; transform: scale(1) rotate(-1.5deg); transition: none; }
  .deploy-card:hover { transform: none; }
}