/* ======================================
   Backbrief — Shared Stylesheet
   Mobile-first, system fonts, no external deps

   Design system: "case file" — Backbrief reads scattered signals
   (an overdue invoice, an open estimate, a forwarded voice memo) and
   pins them to one page every morning. Manila-paper palette, a single
   rubber-stamp red accent, monospace used as a display face (typewriter
   report, not code). See the corkboard hero on index.html for the
   signature element this system builds toward.
   ====================================== */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  /* Fonts — system stacks only, no webfont fetch (privacy: no third-party
     requests from a page with zero tracking scripts). Mono doubles as the
     display face for headings and stamps, not just code. */
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji";
  --font-mono:"SF Mono","Fira Code","Fira Mono","Roboto Mono",Menlo,Consolas,"Liberation Mono",Courier,monospace;

  /* Light theme (default) — manila paper + case-file navy + rubber-stamp red */
  --color-bg:#EDE7D8;
  --color-text:#1B1A17;
  --color-text-secondary:#5B5646;
  --color-accent:#1F2E4A;
  --color-accent-hover:#A63B2E;
  --color-border:#C7BC9E;
  --color-rule:#C7BC9E;
  --color-code-bg:#E4DCC5;
  --color-nav-bg:#1F2E4A;
  --color-header-text:#EDE7D8;
  --color-header-text-secondary:#AEBBD6;
  --color-table-border:#C7BC9E;
  --color-table-alt:#E4DCC5;
  --color-warning-bg:#F3E7C9;
  --color-warning-border:#B8862E;
  --color-warning-text:#6B4A12;
  --color-blockquote-bg:#F8F4E8;
  --color-blockquote-border:#8B8368;
  --color-skip-bg:#1B1A17;
  --color-skip-text:#EDE7D8;
  --color-focus:#A63B2E;
  --color-open-bg:#F5E2DC;
  --color-open-text:#7A2318;
  --color-open-border:#A63B2E;

  /* New: stamp + index-card tokens */
  --color-stamp:#A63B2E;
  --color-stamp-hover:#8A2F24;
  --color-card-bg:#F8F4E8;
  --color-card-border:#C7BC9E;
}

@media(prefers-color-scheme:dark){
  :root{
    --color-bg:#14171B;
    --color-text:#E8E2D0;
    --color-text-secondary:#A79E86;
    --color-accent:#93A7D6;
    --color-accent-hover:#E2694F;
    --color-border:#3A3C36;
    --color-rule:#3A3C36;
    --color-code-bg:#1C1F22;
    --color-nav-bg:#0D1522;
    --color-header-text:#E8E2D0;
    --color-header-text-secondary:#8C9AC0;
    --color-table-border:#3A3C36;
    --color-table-alt:#1A1D20;
    --color-warning-bg:#2A2416;
    --color-warning-border:#C99A3E;
    --color-warning-text:#E8C77A;
    --color-blockquote-bg:#1A1D20;
    --color-blockquote-border:#55503E;
    --color-skip-bg:#E8E2D0;
    --color-skip-text:#14171B;
    --color-focus:#E2694F;
    --color-open-bg:#2A1714;
    --color-open-text:#E8A08F;
    --color-open-border:#8A2F24;

    --color-stamp:#E2694F;
    --color-stamp-hover:#F08468;
    --color-card-bg:#1A1D20;
    --color-card-border:#3A3C36;
  }
}

html{
  font-size:16px;
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}

body{
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.65;
  color:var(--color-text);
  background:var(--color-bg);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* --- Skip Link --- */
.skip-link{
  position:absolute;
  top:-100px;
  left:1rem;
  z-index:1000;
  background:var(--color-skip-bg);
  color:var(--color-skip-text);
  padding:0.5rem 1rem;
  border-radius:0 0 4px 4px;
  font-size:0.875rem;
  font-weight:600;
  text-decoration:none;
  transition:top 0.15s;
}
.skip-link:focus{
  top:0;
  outline:2px solid var(--color-focus);
  outline-offset:2px;
}

/* --- Focus visible --- */
:focus-visible{
  outline:2px solid var(--color-focus);
  outline-offset:2px;
}
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible{
  outline:2px solid var(--color-focus);
  outline-offset:2px;
  border-radius:2px;
}

/* --- Layout container --- */
.container{
  width:100%;
  max-width:720px;
  margin:0 auto;
  padding:0 1.25rem;
}
.container--wide{
  max-width:1120px;
}

/* --- Header / Navigation --- */
.site-header{
  background:var(--color-nav-bg);
  border-bottom:1px solid rgba(0,0,0,0.2);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:0.75rem;
  padding-bottom:0.75rem;
  gap:1rem;
}

.site-logo{
  display:inline-flex;
  align-items:center;
  gap:0.5rem;
  font-family:var(--font-mono);
  font-size:1.0625rem;
  font-weight:700;
  color:var(--color-header-text);
  text-decoration:none;
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.site-logo::before{
  content:"";
  width:0.5rem;
  height:0.5rem;
  border-radius:50%;
  background:var(--color-stamp);
  flex:none;
}
.site-logo:hover{
  color:var(--color-header-text);
  opacity:0.85;
}

.site-nav{
  display:flex;
  align-items:center;
  gap:0.25rem;
}
.site-nav a{
  color:var(--color-header-text-secondary);
  text-decoration:none;
  font-size:0.875rem;
  padding:0.5rem 0.625rem;
  border-radius:4px;
  transition:color 0.15s,background 0.15s;
  min-height:44px;
  display:inline-flex;
  align-items:center;
}
.site-nav a:hover,
.site-nav a:focus-visible{
  color:var(--color-header-text);
  background:rgba(255,255,255,0.08);
}
.site-nav a[aria-current="page"]{
  color:var(--color-header-text);
  font-weight:600;
}

/* --- Main content --- */
.main-content{
  flex:1;
  padding:2.5rem 0 3rem;
}

/* --- Typography --- */
h1,h2,h3,h4{
  font-family:var(--font-mono);
}

h1{
  font-size:1.75rem;
  font-weight:700;
  line-height:1.25;
  margin-bottom:0.75rem;
}

h2{
  font-size:1.3rem;
  font-weight:700;
  line-height:1.3;
  margin-top:2.5rem;
  margin-bottom:0.75rem;
}

h3{
  font-size:1.05rem;
  font-weight:600;
  line-height:1.35;
  margin-top:1.75rem;
  margin-bottom:0.5rem;
}

h4{
  font-size:0.95rem;
  font-weight:600;
  margin-top:1.5rem;
  margin-bottom:0.375rem;
}

p,ul,ol,pre,blockquote,table,.warning-box,.open-box{
  margin-bottom:1.25rem;
}

p{
  max-width:68ch;
}

a{
  color:var(--color-accent);
  text-decoration:underline;
  text-underline-offset:2px;
  transition:color 0.15s;
}
a:hover{
  color:var(--color-accent-hover);
}

strong{
  font-weight:600;
}

/* --- Horizontal rule --- */
hr{
  border:none;
  height:1px;
  background:var(--color-rule);
  margin:2rem 0;
}

/* --- Lists --- */
ul,ol{
  padding-left:1.5rem;
  max-width:68ch;
}
li{
  margin-bottom:0.375rem;
}
li > ul,li > ol{
  margin-top:0.25rem;
  margin-bottom:0.25rem;
}

/* --- Inline code --- */
code{
  font-family:var(--font-mono);
  font-size:0.85em;
  background:var(--color-code-bg);
  padding:0.15em 0.35em;
  border-radius:3px;
  word-break:break-word;
}

pre{
  font-family:var(--font-mono);
  font-size:0.825rem;
  line-height:1.5;
  background:var(--color-code-bg);
  border:1px solid var(--color-border);
  border-radius:6px;
  padding:1rem 1.25rem;
  overflow-x:auto;
  max-width:100%;
  -webkit-overflow-scrolling:touch;
}
pre code{
  background:none;
  padding:0;
  font-size:inherit;
}

/* --- Blockquote --- */
blockquote{
  border-left:3px solid var(--color-blockquote-border);
  padding:0.75rem 1rem;
  margin-left:0;
  margin-right:0;
  background:var(--color-blockquote-bg);
  border-radius:0 6px 6px 0;
  max-width:68ch;
}
blockquote p:last-child{
  margin-bottom:0;
}

/* --- Tables --- */
.table-wrap{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  margin-bottom:1.25rem;
}

table{
  width:100%;
  border-collapse:collapse;
  font-size:0.875rem;
  line-height:1.5;
  min-width:360px;
}

thead{
  border-bottom:2px solid var(--color-table-border);
}

th,td{
  text-align:left;
  padding:0.625rem 0.75rem;
  border-bottom:1px solid var(--color-table-border);
  vertical-align:top;
}

th{
  font-weight:600;
  font-size:0.8125rem;
  text-transform:uppercase;
  letter-spacing:0.04em;
  color:var(--color-text-secondary);
}

tbody tr:nth-child(even){
  background:var(--color-table-alt);
}

/* --- Warning box (open/not-spec-sourced) --- */
.warning-box{
  background:var(--color-warning-bg);
  border:1px solid var(--color-warning-border);
  border-left:4px solid var(--color-warning-border);
  border-radius:6px;
  padding:0.75rem 1rem;
  font-size:0.9rem;
  color:var(--color-warning-text);
  max-width:68ch;
}
.warning-box p:last-child{
  margin-bottom:0;
}
.warning-box strong{
  color:var(--color-text);
}

/* --- Open / flag boxes --- */
.open-box{
  background:var(--color-open-bg);
  border:1px solid var(--color-open-border);
  border-left:4px solid var(--color-open-border);
  border-radius:6px;
  padding:0.75rem 1rem;
  font-size:0.9rem;
  color:var(--color-open-text);
  max-width:68ch;
}
.open-box p:last-child{
  margin-bottom:0;
}
.open-box strong{
  color:var(--color-text);
}

/* ======================================
   Homepage — hero, corkboard signature, capability cards
   ====================================== */

.hero{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:2.5rem;
  align-items:center;
  padding-top:0.5rem;
  padding-bottom:1rem;
}
.hero--single{
  grid-template-columns:1fr;
}
.hero--single > div{
  max-width:68ch;
}
@media(max-width:860px){
  .hero{
    grid-template-columns:1fr;
    gap:2rem;
  }
}

.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:0.4rem;
  font-family:var(--font-mono);
  font-size:0.75rem;
  font-weight:700;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--color-stamp);
  margin-bottom:0.9rem;
}
.hero-eyebrow::before{
  content:"";
  width:0.55rem;
  height:0.55rem;
  border:2px solid var(--color-stamp);
  border-radius:50%;
  flex:none;
}

.hero-headline{
  font-size:clamp(1.9rem,4.2vw,2.75rem);
  font-weight:700;
  line-height:1.15;
  letter-spacing:-0.01em;
  margin-bottom:1rem;
}

.hero-sub{
  font-size:1.05rem;
  color:var(--color-text-secondary);
  max-width:46ch;
  margin-bottom:1.5rem;
}

.hero-body{
  font-size:1.02rem;
  line-height:1.7;
  max-width:62ch;
}

/* --- Corkboard scene: scattered signals converging into one brief --- */
.brief-scene{
  position:relative;
  height:22rem;
  min-width:0;
}
.brief-strings{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  overflow:visible;
}
.brief-card{
  position:absolute;
  width:9.5rem;
  background:var(--color-card-bg);
  border:1px solid var(--color-card-border);
  border-radius:5px;
  box-shadow:0 3px 8px rgba(0,0,0,0.16);
  padding:0.6rem 0.7rem;
  transform:rotate(var(--rot,0deg));
}
.brief-card::before{
  content:"";
  position:absolute;
  top:-0.3rem;
  left:50%;
  transform:translateX(-50%);
  width:0.55rem;
  height:0.55rem;
  border-radius:50%;
  background:var(--color-stamp);
  box-shadow:0 1px 2px rgba(0,0,0,0.35);
}
.brief-card__label{
  display:block;
  font-family:var(--font-mono);
  font-size:0.65rem;
  font-weight:700;
  letter-spacing:0.05em;
  text-transform:uppercase;
  color:var(--color-text-secondary);
  margin-bottom:0.2rem;
}
.brief-card__value{
  display:block;
  font-size:0.8rem;
  font-weight:600;
  line-height:1.3;
  color:var(--color-text);
}

.brief-card--1{ top:0; left:0; --rot:-6deg; }
.brief-card--2{ top:1%; left:38%; --rot:5deg; }
.brief-card--3{ top:52%; left:6%; --rot:4deg; }
.brief-card--4{ top:58%; left:42%; --rot:-4deg; }

.brief-card--main{
  top:14%;
  left:60%;
  width:10rem;
  --rot:-1deg;
  background:var(--color-card-bg);
  border:1.5px solid var(--color-stamp);
  padding:0.75rem 0.8rem;
  z-index:2;
}
.brief-card--main::before{
  display:none;
}
.brief-card--main .brief-card__label{
  color:var(--color-stamp);
}
.brief-card--main ul{
  list-style:none;
  padding:0;
  margin:0.35rem 0 0;
}
.brief-card--main li{
  font-size:0.72rem;
  line-height:1.5;
  color:var(--color-text-secondary);
  margin-bottom:0.1rem;
  padding-left:0.85rem;
  position:relative;
}
.brief-card--main li::before{
  content:"–";
  position:absolute;
  left:0;
  color:var(--color-stamp);
}

@media(max-width:860px){
  .brief-scene{
    height:auto;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:0.75rem;
    justify-items:stretch;
  }
  .brief-strings{ display:none; }
  .brief-card{
    position:static;
    width:auto;
    transform:none;
  }
  .brief-card::before{ display:none; }
  .brief-card--main{
    grid-column:1 / -1;
    transform:none;
  }
}

@media(prefers-reduced-motion:no-preference){
  .brief-card{
    animation:brief-settle 0.5s ease-out backwards;
  }
  .brief-card--1{ animation-delay:0.05s; }
  .brief-card--2{ animation-delay:0.15s; }
  .brief-card--3{ animation-delay:0.25s; }
  .brief-card--4{ animation-delay:0.35s; }
  .brief-card--main{ animation-delay:0.5s; }
  .brief-strings path{
    stroke-dasharray:220;
    stroke-dashoffset:220;
    animation:brief-string-draw 0.6s ease-out forwards;
    animation-delay:0.55s;
  }
}
@keyframes brief-settle{
  from{ opacity:0; transform:translateY(10px) rotate(var(--rot,0deg)); }
  to{ opacity:1; transform:translateY(0) rotate(var(--rot,0deg)); }
}
@keyframes brief-string-draw{
  to{ stroke-dashoffset:0; }
}

/* --- Capability cards ("what's in the brief") --- */
.section-eyebrow{
  font-family:var(--font-mono);
  font-size:0.75rem;
  font-weight:700;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--color-text-secondary);
  margin-bottom:0.5rem;
}
.section-title{
  font-size:1.4rem;
  margin-bottom:0.75rem;
}
.section-intro{
  max-width:62ch;
  font-size:0.95rem;
  color:var(--color-text-secondary);
  margin-bottom:1.5rem;
}

.capabilities{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.25rem;
  margin-bottom:1.5rem;
}
@media(max-width:760px){
  .capabilities{ grid-template-columns:1fr; }
}

.capability-card{
  background:var(--color-card-bg);
  border:1px solid var(--color-card-border);
  border-top:3px solid var(--color-stamp);
  border-radius:4px;
  padding:1.25rem 1.25rem 1.4rem;
}
.capability-card__tab{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:0.7rem;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--color-stamp);
  margin-bottom:0.6rem;
}
.capability-card h3{
  margin-top:0;
  margin-bottom:0.4rem;
  font-size:1.02rem;
}
.capability-card p{
  font-size:0.9rem;
  color:var(--color-text-secondary);
  margin-bottom:0;
}

/* --- Fact cards (security page: verified claims) --- */
.fact-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1.25rem;
  margin-bottom:1.5rem;
}
@media(max-width:760px){
  .fact-grid{ grid-template-columns:1fr; }
}
.fact-card{
  position:relative;
  background:var(--color-card-bg);
  border:1px solid var(--color-card-border);
  border-radius:6px;
  padding:1.75rem 1.5rem 1.5rem;
}
.fact-card h3{
  margin-top:0.4rem;
  margin-bottom:0.5rem;
  font-size:1.05rem;
}
.fact-card p{
  font-size:0.9rem;
  color:var(--color-text-secondary);
  margin-bottom:0;
}

/* --- Roadmap honesty note --- */
.roadmap-note{
  max-width:62ch;
  font-size:0.95rem;
  color:var(--color-text-secondary);
  border-left:3px solid var(--color-rule);
  padding-left:1rem;
}

/* --- Founding member card --- */
.founding-card{
  position:relative;
  background:var(--color-card-bg);
  border:1px solid var(--color-card-border);
  border-radius:6px;
  padding:1.5rem 1.5rem 1.5rem 1.75rem;
  max-width:62ch;
}
.stamp-badge{
  position:absolute;
  top:-0.7rem;
  left:1.25rem;
  background:var(--color-stamp);
  color:#fff;
  font-family:var(--font-mono);
  font-size:0.68rem;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  padding:0.25rem 0.6rem;
  border-radius:3px;
  transform:rotate(-2deg);
}

/* --- Sample brief (proof before any connect ask, KNOW-014) --- */
.sample-brief{
  position:relative;
  background:var(--color-card-bg);
  border:1px solid var(--color-card-border);
  border-radius:6px;
  padding:1.75rem 1.5rem 1.25rem 1.5rem;
  max-width:62ch;
}
.sample-brief__list{
  list-style:none;
  padding:0;
  margin:0;
}
.sample-brief__list li{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:0.4rem 0.75rem;
  padding:0.6rem 0;
  border-bottom:1px solid var(--color-rule);
  margin-bottom:0;
}
.sample-brief__list li:last-child{
  border-bottom:none;
  padding-bottom:0;
}
.sample-brief__who{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:0.85rem;
  color:var(--color-text);
  flex:none;
}
.sample-brief__what{
  font-size:0.88rem;
  color:var(--color-text-secondary);
}
.founding-card h2{
  margin-top:0.4rem;
  margin-bottom:0.5rem;
}
.founding-card p{
  font-size:0.925rem;
  color:var(--color-text-secondary);
  margin-bottom:0.75rem;
}
.founding-card p:last-child{ margin-bottom:0.75rem; }
.founding-card strong{ color:var(--color-text); }

/* --- Primary CTA button --- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:0.5rem;
  font-family:var(--font-mono);
  font-size:0.9rem;
  font-weight:700;
  text-decoration:none;
  color:#fff;
  background:var(--color-stamp);
  padding:0.75rem 1.25rem;
  border-radius:4px;
  transition:background 0.15s;
}
.btn:hover{
  background:var(--color-stamp-hover);
  color:#fff;
}

/* --- Screen-reader-only text (keeps section headings in the a11y outline
   without adding a redundant visible heading next to a self-explanatory box) --- */
.visually-hidden{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

/* --- Trust strip (the one fully-verified fact: EU data location) --- */
.trust-strip{
  display:flex;
  align-items:flex-start;
  gap:0.75rem;
  max-width:62ch;
  padding:1rem 1.1rem;
  background:var(--color-card-bg);
  border:1px solid var(--color-card-border);
  border-radius:6px;
  font-size:0.9rem;
  color:var(--color-text-secondary);
}
.trust-strip__icon{
  flex:none;
  width:1.6rem;
  height:1.6rem;
  border-radius:50%;
  border:1.5px solid var(--color-stamp);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-mono);
  font-size:0.7rem;
  font-weight:700;
  color:var(--color-stamp);
}
.trust-strip strong{ color:var(--color-text); }
.trust-strip p{ margin-bottom:0.5rem; }
.trust-strip p:last-child{ margin-bottom:0; }

/* --- Homepage section rhythm --- */
.home-section{
  margin-top:3.5rem;
}

/* --- About / legal links (existing) --- */
.about-block{
  margin-top:3rem;
  padding-top:1.5rem;
  border-top:1px solid var(--color-rule);
}
.about-block--intro{
  margin-top:2.5rem;
  padding-top:0;
  border-top:none;
}
.about-block--intro p{
  font-size:1.02rem;
  color:var(--color-text);
}
.about-block p{
  font-size:0.95rem;
  color:var(--color-text-secondary);
}
.legal-links{
  margin-top:1.5rem;
  display:flex;
  flex-wrap:wrap;
  gap:0.25rem;
}
.legal-links a{
  font-size:0.85rem;
  padding:0.5rem 0;
  min-height:44px;
  display:inline-flex;
  align-items:center;
  color:var(--color-text-secondary);
}
.legal-links a:hover{
  color:var(--color-accent-hover);
}
.legal-links .sep{
  color:var(--color-rule);
  padding:0 0.25rem;
  display:inline-flex;
  align-items:center;
  user-select:none;
}

/* --- Footer --- */
.site-footer{
  border-top:1px solid var(--color-border);
  padding:1.5rem 0;
  font-size:0.8125rem;
  color:var(--color-text-secondary);
}
.site-footer .container{
  display:flex;
  flex-direction:column;
  gap:0.5rem;
}
@media(min-width:480px){
  .site-footer .container{
    flex-direction:row;
    justify-content:space-between;
    align-items:center;
  }
}
.site-footer a{
  color:var(--color-text-secondary);
}
.site-footer a:hover{
  color:var(--color-accent-hover);
}

/* --- Legal page intro block --- */
.legal-intro{
  font-size:0.9375rem;
  color:var(--color-text-secondary);
  margin-bottom:2rem;
  padding-bottom:1rem;
  border-bottom:1px solid var(--color-rule);
}
.legal-intro p{
  color:var(--color-text-secondary);
}

/* --- Citation trace table --- */
.citation-table th:first-child,
.citation-table td:first-child{
  width:55%;
}

/* Responsive: tighter spacing on small screens */
@media(max-width:480px){
  .main-content{
    padding:1.75rem 0 2rem;
  }
  h2{
    font-size:1.15rem;
    margin-top:2rem;
  }
  .site-header .container{
    flex-wrap:nowrap;
  }
  .site-nav a{
    padding:0.5rem 0.4375rem;
    font-size:0.8125rem;
  }
  th,td{
    padding:0.5rem 0.5rem;
  }
  .home-section{
    margin-top:2.5rem;
  }
}

/* Print */
@media print{
  .skip-link{display:none}
  .site-header{border-bottom-color:#000}
  .site-footer{border-top-color:#000}
  body{color:#000;background:#fff}
  a{color:#000;text-decoration:underline}
  .container{max-width:none}
  pre{white-space:pre-wrap;word-break:break-word}
  .table-wrap{overflow:visible}
  .warning-box,.open-box{border-color:#000;background:#f9f9f9}
  .brief-strings{display:none}
  .dev-banner{display:none}
  .blog-card{border-top-color:#000}
}

/* ======================================
   Dev banner, blog, resources
   ====================================== */

.dev-banner{
  background:var(--color-card-bg);
  border-bottom:1px solid var(--color-card-border);
  border-left:3px solid var(--color-stamp);
  padding:0.6rem 1.25rem;
  font-size:0.875rem;
  color:var(--color-text-secondary);
}
.dev-banner .container{
  max-width:1120px;
  margin:0 auto;
  padding:0 1.25rem;
}
.dev-banner p{
  margin:0;
  max-width:none;
}

.blog-list{
  display:grid;
  gap:1.25rem;
  margin-top:1.5rem;
}

.blog-card{
  background:var(--color-card-bg);
  border:1px solid var(--color-card-border);
  border-top:3px solid var(--color-stamp);
  border-radius:4px;
  padding:1.25rem 1.25rem 1.4rem;
  text-decoration:none;
  display:block;
  transition:border-color 0.15s;
}
.blog-card:hover{
  border-top-color:var(--color-stamp-hover);
  text-decoration:none;
}

.blog-card__date{
  display:block;
  font-family:var(--font-mono);
  font-size:0.7rem;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--color-stamp);
  margin-bottom:0.4rem;
}

.blog-card__title{
  display:block;
  font-family:var(--font-mono);
  font-size:1.02rem;
  font-weight:700;
  line-height:1.35;
  color:var(--color-text);
  margin-bottom:0.35rem;
}

.blog-card__summary{
  display:block;
  font-size:0.9rem;
  color:var(--color-text-secondary);
  line-height:1.55;
}

.post-header{
  margin-bottom:2rem;
  padding-bottom:1.25rem;
  border-bottom:1px solid var(--color-rule);
}
.post-meta{
  font-family:var(--font-mono);
  font-size:0.75rem;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--color-stamp);
  margin-bottom:0.75rem;
}
.post-meta a{
  color:var(--color-stamp);
  text-decoration:none;
}
.post-meta a:hover{
  text-decoration:underline;
}
.post-body h2{
  margin-top:2rem;
}
.post-body p,
.post-body ul,
.post-body ol,
.post-body blockquote{
  max-width:68ch;
}

.resource-card{
  background:var(--color-card-bg);
  border:1px solid var(--color-card-border);
  border-radius:6px;
  padding:1.5rem 1.5rem 1.5rem 1.75rem;
  max-width:62ch;
  margin-bottom:1.5rem;
}
.resource-card h3{
  margin-top:0;
  margin-bottom:0.5rem;
}
.resource-card p{
  font-size:0.925rem;
  color:var(--color-text-secondary);
  margin-bottom:0.75rem;
}
.resource-card p:last-child{
  margin-bottom:0;
}

.resource-card__download{
  display:inline-flex;
  align-items:center;
  gap:0.4rem;
  font-family:var(--font-mono);
  font-size:0.85rem;
  font-weight:700;
  color:var(--color-stamp);
  text-decoration:none;
  padding:0.5rem 1rem;
  border:1.5px solid var(--color-stamp);
  border-radius:4px;
  transition:background 0.15s,color 0.15s;
  min-height:44px;
}
.resource-card__download:hover{
  background:var(--color-stamp);
  color:#fff;
}