:root{
  --ink:#0E141C; --ink-2:#131B25; --ink-3:#1B2531;
  --paper:#F3EFE7; --paper-dim:#C7C2B6;
  --amber:#D98F3E; --amber-soft:rgba(217,143,62,.16);
  --teal:#7BAFA6; --slate:#8A94A0;
  --line:rgba(243,239,231,.12); --line-strong:rgba(243,239,231,.22);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body.blog{
  background:var(--ink);
  color:var(--paper);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
::selection{background:var(--amber-soft);color:var(--paper);}

.wrap{max-width:1080px;margin:0 auto;padding:0 32px;}
.wrap-narrow{max-width:760px;margin:0 auto;padding:0 32px;}
@media (max-width:640px){.wrap,.wrap-narrow{padding:0 20px;}}

h1,h2,h3{font-family:'Fraunces',serif;font-weight:600;letter-spacing:-.01em;}

.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--amber);
  display:flex;align-items:center;gap:10px;
}
.eyebrow::before{
  content:'';width:6px;height:6px;border-radius:50%;
  background:var(--amber);box-shadow:0 0 0 3px var(--amber-soft);flex-shrink:0;
}

/* ---------- NAV (identical to home.html) ---------- */
nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(14,20,28,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;}
.nav-name{font-family:'Fraunces',serif;font-weight:600;font-size:17px;letter-spacing:.01em;}
.nav-links{display:flex;gap:26px;font-size:13px;font-family:'IBM Plex Mono',monospace;letter-spacing:.03em;}
.nav-links a{color:var(--slate);transition:color .2s;white-space:nowrap;}
.nav-links a:hover{color:var(--amber);}
.nav-links a.active{color:var(--amber);}
@media (max-width:900px){.nav-links{display:none;}}

.hamburger{
  display:none;flex-direction:column;justify-content:center;align-items:center;
  gap:5px;width:36px;height:36px;background:none;border:none;cursor:pointer;padding:0;
  -webkit-tap-highlight-color:transparent;
}
@media (max-width:900px){.hamburger{display:flex;}}
.hamburger span{
  display:block;width:22px;height:1.5px;background:var(--paper);border-radius:1px;
  transition:transform .25s ease, opacity .2s ease, background .2s ease;
}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);background:var(--amber);}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);background:var(--amber);}

.mobile-menu{
  position:fixed;top:64px;left:0;right:0;z-index:49;
  background:rgba(14,20,28,.98);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  display:flex;flex-direction:column;padding:8px 0 18px;
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .3s ease, opacity .25s ease;
}
.mobile-menu.open{max-height:520px;opacity:1;}
.mobile-menu a{
  font-family:'IBM Plex Mono',monospace;font-size:14px;letter-spacing:.03em;
  color:var(--paper-dim);padding:16px 32px;border-bottom:1px solid var(--line);
}
.mobile-menu a:active,.mobile-menu a:hover{color:var(--amber);}
@media (min-width:901px){.mobile-menu{display:none;}}
body.menu-open{overflow:hidden;}

/* ---------- FOOTER (identical to home.html) ---------- */
footer{padding:32px 0;border-top:1px solid var(--line);}
footer .wrap{
  display:flex;justify-content:space-between;align-items:center;
  font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--slate);
  letter-spacing:.05em;flex-wrap:wrap;gap:10px;
}

/* ---------- SIGNAL BG / RADAR (shared with hero) ---------- */
.signal-bg{
  position:absolute;inset:0;opacity:.55;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,transparent 40%,rgba(0,0,0,.5) 54%,#000 68%);
  mask-image:linear-gradient(90deg,transparent 0%,transparent 40%,rgba(0,0,0,.5) 54%,#000 68%);
}
.signal-bg svg{width:100%;height:100%;}
.radar-sweep{transform-origin:880px 380px;animation:sweep 14s linear infinite;}
@keyframes sweep{to{transform:rotate(360deg);}}
.radar-blip{animation:blip 4s ease-in-out infinite;}
@keyframes blip{0%,100%{opacity:.15;}50%{opacity:.6;}}
@media (prefers-reduced-motion:reduce){.radar-sweep,.radar-blip{animation:none;}}

/* ---------- BLOG INDEX HERO ---------- */
.blog-hero{
  min-height:52vh;
  padding-top:64px;position:relative;
  border-bottom:1px solid var(--line);
}
.blog-hero-inner{position:relative;z-index:2;padding-top:80px;padding-bottom:56px;}
.blog-hero h1{
  font-size:clamp(38px,5.4vw,58px);
  line-height:1.05;color:var(--paper);
  margin:16px 0 18px;
}
.blog-hero h1 em{font-style:italic;color:var(--amber);font-weight:400;}
.blog-hero p.lede{font-size:18px;color:var(--paper-dim);max-width:540px;}

/* ---------- POST LOG (extends Signal Feed pattern) ---------- */
.feed-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px;padding-top:56px;}
.feed-head .meta{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--slate);letter-spacing:.05em;}

/* ---------- SEARCH ---------- */
.post-search{position:relative;margin-bottom:36px;}
.post-search input{
  width:100%;background:var(--ink-2);border:1px solid var(--line-strong);
  color:var(--paper);padding:14px 18px 14px 42px;
  font-family:'IBM Plex Mono',monospace;font-size:13.5px;letter-spacing:.02em;
  border-radius:2px;transition:border-color .15s ease;
}
.post-search input::placeholder{color:var(--slate);}
.post-search input:focus{outline:none;border-color:var(--amber);}
.post-search::before{
  content:'';position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:12px;height:12px;border:1.5px solid var(--slate);border-radius:50%;
  pointer-events:none;
}
.post-search::after{
  content:'';position:absolute;left:25px;top:50%;transform:translateY(4px) rotate(45deg);
  width:1.5px;height:8px;background:var(--slate);pointer-events:none;
}

/* ---------- CARD GRID (mirrors the diagnostic's mode-card pattern) ---------- */
.card-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
  gap:16px;margin-bottom:80px;
}
.post-card{
  text-align:left;background:var(--ink-2);
  border:1.5px solid var(--line-strong);border-radius:10px;
  padding:26px 24px;cursor:pointer;
  display:flex;flex-direction:column;gap:10px;
  transition:border-color .15s ease, transform .15s ease;
}
.post-card:hover{border-color:var(--amber);transform:translateY(-2px);}
.post-card .flag{
  align-self:flex-start;
  font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.1em;
  text-transform:uppercase;border-radius:4px;padding:4px 10px;
  background:var(--amber-soft);color:var(--amber);
}
.post-card .sig{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--teal);letter-spacing:.05em;}
.post-card h2{font-size:1.3rem;color:var(--paper);font-weight:600;line-height:1.28;}
.post-card p.dek{color:var(--paper-dim);font-size:14.5px;flex-grow:1;line-height:1.55;}
.post-card .row-meta{
  font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--slate);
  letter-spacing:.05em;display:flex;gap:12px;align-items:center;flex-wrap:wrap;
}
.post-card.js-hidden{display:none;}
.tag-chip{
  border:1px solid var(--line-strong);padding:4px 12px;
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--amber);border-radius:2px;
}
.empty-state{padding:64px 0;color:var(--slate);font-family:'IBM Plex Mono',monospace;font-size:14px;}

/* ---------- SINGLE POST ---------- */
.post-header{position:relative;padding-top:64px;border-bottom:1px solid var(--line);overflow:hidden;}
.radar-corner{position:absolute;top:0;right:0;width:320px;height:320px;opacity:.6;pointer-events:none;}
.radar-corner-svg{width:100%;height:100%;}
@media (max-width:640px){.radar-corner{width:200px;height:200px;}}

.post-header-inner{position:relative;z-index:2;padding:64px 0 40px;max-width:720px;}
.post-header a.back-link{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.05em;
  color:var(--slate);transition:color .2s;
}
.post-header a.back-link:hover{color:var(--amber);}
.post-header h1{
  font-size:clamp(32px,5vw,48px);line-height:1.1;color:var(--paper);margin:20px 0 16px;
}
.post-header .dek{font-size:17px;color:var(--paper-dim);max-width:600px;margin-bottom:26px;}
.post-meta-row{
  display:flex;gap:20px;align-items:center;flex-wrap:wrap;
  font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--slate);letter-spacing:.05em;
}

.post-body{padding:52px 0 20px;font-size:1.08rem;max-width:720px;margin:0 auto;}
.post-body p.lede{
  font-family:'Fraunces',serif;font-weight:400;font-style:italic;font-size:1.4rem;
  color:var(--paper);line-height:1.5;margin-bottom:36px;
}
.post-body h2{font-size:1.5rem;color:var(--paper);margin:46px 0 16px;font-weight:600;}
.post-body p{margin:0 0 20px;color:var(--paper-dim);}
.post-body em{color:var(--amber);font-style:italic;}
.post-body a{color:var(--amber);text-decoration:underline;text-underline-offset:2px;}
.post-body a:hover{color:#e0a659;}
.post-body strong{color:var(--paper);}

.post-cta{
  margin:52px 0 96px;padding:32px;
  background:var(--ink-2);border:1px solid var(--line);border-radius:4px;
  max-width:720px;
}
.post-cta p{margin:0 0 18px;color:var(--paper-dim);}
.post-cta p strong{color:var(--paper);}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 24px;
  font-size:13px;font-family:'IBM Plex Mono',monospace;letter-spacing:.03em;
  border-radius:2px;transition:all .2s ease;border:1px solid var(--line-strong);
}
.btn-primary{background:var(--amber);color:var(--ink);border-color:var(--amber);}
.btn-primary:hover{background:#c07d30;}

@media (max-width:640px){
  .blog-hero{min-height:auto;}
  .post-header-inner{padding:48px 0 28px;}
}