/* ============================================================
   TulaDB — product site
   Identity: equilibrium. Two pans that always reconcile.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,600;12..96,700;12..96,800&family=Hanken+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ---------- Tokens: dark (default) ---------- */
:root{
  --ground:#0B0E13;
  --ground-2:#0E121A;
  --panel:#141A23;
  --panel-2:#182029;
  --raised:#1C2530;
  --text:#EDF1F6;
  --muted:#9AA7B8;
  --faint:#697585;
  --gold:#E7B35A;        /* primary accent — brass / the weight */
  --gold-soft:rgba(231,179,90,.12);
  --gold-line:rgba(231,179,90,.34);
  --slate:#7FB0C4;       /* secondary — the counterweight (credit) */
  --slate-soft:rgba(127,176,196,.12);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.055);
  --good:#5CC48A;
  --warn:#E7B35A;
  --crit:#E0796F;
  --shadow:0 30px 80px rgba(0,0,0,.42);
  --shadow-sm:0 14px 40px rgba(0,0,0,.28);
  --radius:18px;
  --radius-lg:26px;
  --maxw:1200px;
  --gutter:clamp(20px,5vw,72px);
  --ff-display:'Bricolage Grotesque',ui-sans-serif,system-ui,sans-serif;
  --ff-body:'Hanken Grotesk',ui-sans-serif,system-ui,-apple-system,sans-serif;
  --ff-mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
  color-scheme:dark;
}

/* ---------- Tokens: light (ledger paper) ---------- */
:root[data-theme="light"]{
  --ground:#EDF0F4;
  --ground-2:#E7EBF0;
  --panel:#FFFFFF;
  --panel-2:#F5F7FA;
  --raised:#FFFFFF;
  --text:#141922;
  --muted:#556072;
  --faint:#8492A3;
  --gold:#9A6A1B;
  --gold-soft:rgba(154,106,27,.10);
  --gold-line:rgba(154,106,27,.30);
  --slate:#2E6C86;
  --slate-soft:rgba(46,108,134,.10);
  --line:rgba(15,22,34,.12);
  --line-2:rgba(15,22,34,.07);
  --good:#1E8B57;
  --warn:#9A6A1B;
  --crit:#C0503F;
  --shadow:0 24px 60px rgba(30,45,70,.14);
  --shadow-sm:0 12px 30px rgba(30,45,70,.10);
  color-scheme:light;
}

/* Honor OS preference until a manual choice is stamped on <html> */
@media (prefers-color-scheme:light){
  :root:not([data-theme]){
    --ground:#EDF0F4;--ground-2:#E7EBF0;--panel:#FFFFFF;--panel-2:#F5F7FA;--raised:#FFFFFF;
    --text:#141922;--muted:#556072;--faint:#8492A3;
    --gold:#9A6A1B;--gold-soft:rgba(154,106,27,.10);--gold-line:rgba(154,106,27,.30);
    --slate:#2E6C86;--slate-soft:rgba(46,108,134,.10);
    --line:rgba(15,22,34,.12);--line-2:rgba(15,22,34,.07);
    --good:#1E8B57;--warn:#9A6A1B;--crit:#C0503F;
    --shadow:0 24px 60px rgba(30,45,70,.14);--shadow-sm:0 12px 30px rgba(30,45,70,.10);
    color-scheme:light;
  }
}

/* ---------- Reset ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ground);color:var(--text);
  font-family:var(--ff-body);font-size:17px;line-height:1.62;
  font-feature-settings:"ss01";
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:700;line-height:1.03;letter-spacing:-.02em;margin:0;text-wrap:balance}
p{margin:0}
::selection{background:var(--gold);color:#0B0E13}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
.mono{font-family:var(--ff-mono);font-variant-numeric:tabular-nums}

/* ---------- Layout helpers ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(64px,9vw,120px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--ff-mono);font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold);margin:0 0 20px;
}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--gold-line)}
.lead{color:var(--muted);font-size:clamp(17px,1.6vw,20px);max-width:62ch}
.sectionhead{max-width:760px;margin-bottom:44px}
.sectionhead h2{font-size:clamp(30px,4.4vw,50px)}
.sectionhead .lead{margin-top:18px}
.center{text-align:center;margin-inline:auto}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:80;
  border-bottom:1px solid var(--line-2);
  background:color-mix(in srgb,var(--ground) 82%,transparent);
  backdrop-filter:saturate(1.4) blur(14px);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;
  width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
.brand{display:inline-flex;align-items:center;gap:11px;font-family:var(--ff-display);
  font-weight:700;font-size:20px;letter-spacing:-.03em;color:var(--text)}
.brand .glyph{width:30px;height:30px;flex:0 0 30px}
.brand b{font-weight:800}
.brand .db{color:var(--gold)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:10px;color:var(--muted);font-size:15px;font-weight:500;transition:color .15s,background .15s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--text);background:var(--panel-2)}
.nav-right{display:flex;align-items:center;gap:10px}
.iconbtn{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;border:1px solid var(--line);
  background:var(--panel-2);color:var(--muted);cursor:pointer;transition:.15s}
.iconbtn:hover{color:var(--text);border-color:var(--gold-line)}
.iconbtn svg{width:18px;height:18px}
.theme-toggle .sun{display:none}
:root[data-theme="light"] .theme-toggle .sun{display:block}
:root[data-theme="light"] .theme-toggle .moon{display:none}
@media (prefers-color-scheme:light){:root:not([data-theme]) .theme-toggle .sun{display:block}:root:not([data-theme]) .theme-toggle .moon{display:none}}
.navburger{display:none}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;border-radius:12px;
  font-family:var(--ff-body);font-weight:600;font-size:15.5px;cursor:pointer;border:1px solid transparent;
  transition:transform .16s ease,box-shadow .16s ease,background .16s,border-color .16s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:var(--gold);color:#0B0E13;box-shadow:0 10px 30px -8px var(--gold-line)}
.btn.primary:hover{box-shadow:0 16px 40px -10px var(--gold-line)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn.ghost:hover{border-color:var(--gold-line);background:var(--panel-2)}
.btn.sm{height:40px;padding:0 16px;font-size:14px}
.btn svg{width:16px;height:16px}
.actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-2)}
.hero::before{content:"";position:absolute;inset:-30% 40% auto -10%;height:640px;
  background:radial-gradient(circle at 30% 30%,var(--gold-soft),transparent 62%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:-20% -12% auto 50%;height:600px;
  background:radial-gradient(circle at 70% 30%,var(--slate-soft),transparent 60%);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(32px,5vw,68px);
  align-items:center;padding-block:clamp(56px,8vw,104px)}
.badge{display:inline-flex;align-items:center;gap:9px;padding:7px 13px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel-2);font-size:13px;color:var(--muted);margin-bottom:26px;font-family:var(--ff-mono)}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px var(--gold-soft)}
.hero h1{font-size:clamp(44px,6.6vw,82px);font-weight:800;letter-spacing:-.045em;line-height:.96}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero .lead{margin-top:26px;font-size:clamp(17px,1.7vw,21px)}
.hero .actions{margin-top:34px}
.hero .fineprint{margin-top:22px;color:var(--faint);font-size:13.5px;max-width:52ch;font-family:var(--ff-mono);line-height:1.55}

/* ---------- Balance instrument (hero visual) ---------- */
.instrument{position:relative;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,var(--panel),var(--panel-2));box-shadow:var(--shadow);overflow:hidden}
.instrument-bar{display:flex;align-items:center;gap:8px;height:46px;padding:0 16px;border-bottom:1px solid var(--line-2);
  font-family:var(--ff-mono);font-size:12px;color:var(--faint)}
.instrument-bar .d{width:9px;height:9px;border-radius:50%;background:var(--faint);opacity:.5}
.instrument-bar b{margin-left:auto;color:var(--muted);font-weight:500;letter-spacing:.04em}
.scale-stage{position:relative;height:196px;padding:22px 26px 8px}
.beam-group{transform-box:view-box;transform-origin:160px 60px;animation:settle 7s ease-in-out infinite}
.equal-badge{position:absolute;left:50%;top:132px;transform:translateX(-50%);
  display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;
  border:1px solid var(--gold-line);background:var(--gold-soft);color:var(--gold);
  font-family:var(--ff-mono);font-size:12.5px;font-weight:600;letter-spacing:.04em}
.ledger-strip{border-top:1px solid var(--line-2);display:grid}
.ledger-strip .lr{display:grid;grid-template-columns:1.1fr 1fr 1fr .9fr;gap:1px;
  font-family:var(--ff-mono);font-size:12.5px}
.ledger-strip .lr>span{padding:11px 14px;background:var(--ground-2);color:var(--muted);
  font-variant-numeric:tabular-nums;border-top:1px solid var(--line-2)}
.ledger-strip .lr:first-child>span{border-top:0;color:var(--faint);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.ledger-strip .lr>span:first-child{color:var(--text)}
.ledger-strip .amt-d{color:var(--gold)}
.ledger-strip .amt-c{color:var(--slate)}
.tag{display:inline-block;padding:1px 8px;border-radius:6px;font-size:10.5px;font-weight:600;letter-spacing:.04em}
.tag.posted{background:var(--gold-soft);color:var(--gold)}
.tag.pending{background:var(--slate-soft);color:var(--slate)}
.tag.rej{background:rgba(224,121,111,.14);color:var(--crit)}

/* ---------- Stat rail ---------- */
.rail{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);overflow:hidden}
.rail>div{padding:24px 26px;border-left:1px solid var(--line-2)}
.rail>div:first-child{border-left:0}
.rail dt{font-family:var(--ff-display);font-weight:700;font-size:22px;letter-spacing:-.02em;color:var(--text)}
.rail dd{margin:6px 0 0;color:var(--muted);font-size:13.5px}

/* ---------- Cards ---------- */
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:26px;
  transition:transform .2s ease,border-color .2s ease,background .2s}
.card:hover{transform:translateY(-4px);border-color:var(--gold-line)}
.card .kmark{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:11px;
  background:var(--gold-soft);color:var(--gold);margin-bottom:18px}
.card .kmark svg{width:20px;height:20px}
.card h3{font-size:20px;margin-bottom:9px}
.card p{color:var(--muted);font-size:15.5px}
.card.slate .kmark{background:var(--slate-soft);color:var(--slate)}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(28px,4.5vw,60px);align-items:center}
.split.rev{grid-template-columns:1.08fr .92fr}
.panel{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--panel);box-shadow:var(--shadow-sm)}

/* ---------- Ledger posting component ---------- */
.posting{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel);
  font-family:var(--ff-mono);font-size:13.5px;box-shadow:var(--shadow-sm)}
.posting .row{display:grid;grid-template-columns:1.1fr .9fr .9fr .9fr 1.5fr;gap:1px}
.posting .row>span{padding:14px 16px;background:var(--ground-2);color:var(--muted);
  font-variant-numeric:tabular-nums;border-top:1px solid var(--line-2)}
.posting .row:first-child>span{border-top:0}
.posting .row.head>span{background:var(--panel-2);color:var(--gold);font-size:11px;font-weight:600;
  letter-spacing:.09em;text-transform:uppercase}
.posting .row>span:first-child{color:var(--text);font-weight:600}
.posting .amt-d{color:var(--gold)}
.posting .amt-c{color:var(--slate)}
.posting .without{color:var(--faint);font-family:var(--ff-body);font-size:13px}

/* ---------- Contrast / choice ---------- */
.choice{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.choice .c{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:var(--panel)}
.choice .c.muted{background:var(--ground-2)}
.choice .c.strong{border-color:var(--gold-line);background:linear-gradient(180deg,var(--gold-soft),transparent)}
.choice .c .k{font-family:var(--ff-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.choice .c h4{font-size:19px;margin:8px 0 10px}
.choice .c p{color:var(--muted);font-size:15px}

/* ---------- Pipeline (true sequence, numbered) ---------- */
.pipeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:step}
.step{position:relative;border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:var(--panel);overflow:hidden}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--ff-mono);font-size:12px;color:var(--gold);font-weight:600}
.step h4{font-size:17px;margin:10px 0 7px}
.step p{color:var(--muted);font-size:14px}
.step::after{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--gold),transparent)}

/* ---------- Callout ---------- */
.callout{border:1px solid var(--gold-line);border-radius:var(--radius);background:var(--gold-soft);
  padding:22px 24px;color:var(--muted);font-size:15px}
.callout strong{color:var(--text)}
.callout.slate{border-color:var(--slate-soft);background:var(--slate-soft)}

/* ---------- Feature list ---------- */
.flist{display:grid;gap:2px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
.flist .fi{display:grid;grid-template-columns:auto 1fr;gap:16px;padding:20px 22px;border-top:1px solid var(--line-2)}
.flist .fi:first-child{border-top:0}
.flist .fi .ic{color:var(--gold);margin-top:2px}
.flist .fi .ic svg{width:20px;height:20px}
.flist .fi h4{font-size:17px;margin-bottom:4px}
.flist .fi p{color:var(--muted);font-size:14.5px}

/* ---------- Architecture stack ---------- */
.stack{display:grid;gap:12px}
.layer{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:center;
  border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;background:var(--panel)}
.layer.core{border-color:var(--gold-line);background:linear-gradient(180deg,var(--gold-soft),var(--panel))}
.layer .lx{font-family:var(--ff-mono);font-size:12px;color:var(--faint);width:34px}
.layer b{font-family:var(--ff-display);font-size:18px;font-weight:700}
.layer span{display:block;color:var(--muted);font-size:14px;margin-top:2px}

/* ---------- Evidence grid ---------- */
.evidence{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.evidence .e{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--panel)}
.evidence .e .ic{color:var(--slate);margin-bottom:14px}
.evidence .e .ic svg{width:22px;height:22px}
.evidence .e strong{display:block;font-family:var(--ff-display);font-size:17px;font-weight:700;margin-bottom:6px}
.evidence .e span{color:var(--muted);font-size:14px}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;border:1px solid var(--gold-line);border-radius:var(--radius-lg);
  padding:clamp(38px,6vw,68px);text-align:center;background:
    radial-gradient(circle at 50% -20%,var(--gold-soft),transparent 60%),var(--panel)}
.cta-band h2{font-size:clamp(30px,4.5vw,48px)}
.cta-band .lead{margin:18px auto 30px}
.cta-band .actions{justify-content:center}

/* ---------- Steps / trust rows ---------- */
.deflist{display:grid;gap:0;border-top:1px solid var(--line)}
.deflist .di{display:grid;grid-template-columns:.5fr 1.5fr;gap:24px;padding:24px 0;border-bottom:1px solid var(--line)}
.deflist .di dt{font-family:var(--ff-display);font-weight:700;font-size:19px}
.deflist .di dd{margin:0;color:var(--muted);font-size:15.5px}

/* ---------- Form ---------- */
.form{display:grid;gap:18px}
.field{display:grid;gap:7px}
.field label{font-size:14px;font-weight:600;color:var(--text)}
.field label .req{color:var(--gold)}
.field input,.field select,.field textarea{
  font-family:var(--ff-body);font-size:15px;color:var(--text);background:var(--panel-2);
  border:1px solid var(--line);border-radius:12px;padding:13px 15px;width:100%;transition:.15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold-line);
  box-shadow:0 0 0 3px var(--gold-soft);background:var(--panel)}
.field textarea{resize:vertical;min-height:110px}
.field .hint{color:var(--faint);font-size:12.5px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-note{color:var(--faint);font-size:13px;font-family:var(--ff-mono);line-height:1.55}

/* ---------- Footer ---------- */
.foot{border-top:1px solid var(--line);background:var(--ground-2);margin-top:40px}
.foot-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-block:clamp(48px,7vw,72px)}
.foot .brand{margin-bottom:16px}
.foot .tagline{color:var(--muted);font-size:14.5px;max-width:34ch}
.foot h5{font-family:var(--ff-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin:0 0 16px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.foot a{color:var(--muted);font-size:15px}
.foot a:hover{color:var(--text)}
.foot-base{border-top:1px solid var(--line);padding-block:22px;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;color:var(--faint);font-size:13px;font-family:var(--ff-mono)}

/* ---------- Reveal (progressive enhancement: only hides when JS is active) ---------- */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .grid-3,.evidence,.pipeline{grid-template-columns:repeat(2,1fr)}
  .rail{grid-template-columns:repeat(2,1fr)}
  .rail>div:nth-child(3){border-left:0}
  .rail>div:nth-child(n+3){border-top:1px solid var(--line-2)}
  .hero-inner,.split,.split.rev{grid-template-columns:1fr}
  .instrument{order:-1}
  .foot-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  body{font-size:16px}
  .nav-links{display:none}
  .navburger{display:grid}
  .nav.open .nav-links{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;
    align-items:stretch;padding:12px var(--gutter);background:var(--ground);border-bottom:1px solid var(--line);gap:2px}
  .grid-3,.grid-2,.evidence,.pipeline,.choice,.form-row{grid-template-columns:1fr}
  .rail{grid-template-columns:1fr 1fr}
  .foot-inner{grid-template-columns:1fr 1fr}
  .posting{font-size:11.5px;overflow-x:auto}
  .posting .row{min-width:560px}
  .deflist .di{grid-template-columns:1fr;gap:8px}
}
@media (max-width:420px){.foot-inner{grid-template-columns:1fr}}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
  .beam-group{animation:none}
  .btn:hover,.card:hover{transform:none}
}

@keyframes settle{
  0%{transform:rotate(-7deg)}
  14%{transform:rotate(5deg)}
  26%{transform:rotate(-3deg)}
  38%{transform:rotate(1.6deg)}
  50%,100%{transform:rotate(0deg)}
}

/* ============================================================
   Blog
   ============================================================ */
.pill{display:inline-block;padding:3px 10px;border-radius:999px;border:1px solid var(--gold-line);
  background:var(--gold-soft);color:var(--gold);font-family:var(--ff-mono);font-size:11.5px;font-weight:500;
  letter-spacing:.04em}

/* Index list */
.post-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.post-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);padding:28px;transition:transform .2s ease,border-color .2s ease}
.post-card:hover{transform:translateY(-4px);border-color:var(--gold-line)}
.post-card-meta{display:flex;align-items:center;gap:12px;color:var(--faint);font-size:13px;margin-bottom:16px}
.post-card h2{font-size:24px;letter-spacing:-.02em;margin-bottom:10px}
.post-card p{color:var(--muted);font-size:15.5px;flex:1}
.post-card-more{display:inline-flex;align-items:center;gap:7px;margin-top:18px;color:var(--gold);
  font-weight:600;font-size:14.5px}
.post-card-more svg{width:16px;height:16px;transition:transform .2s ease}
.post-card:hover .post-card-more svg{transform:translateX(4px)}

/* Post reading column */
.post{width:min(760px,100%);margin-inline:auto;padding:clamp(28px,5vw,52px) var(--gutter) clamp(56px,8vw,96px)}
.post-back{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:14px;font-weight:600;
  margin-bottom:34px}
.post-back:hover{color:var(--gold)}
.post-back svg{width:16px;height:16px}
.post-head{border-bottom:1px solid var(--line);padding-bottom:34px;margin-bottom:8px}
.post-meta{display:flex;align-items:center;gap:12px;color:var(--faint);font-size:13px;margin-bottom:20px;font-family:var(--ff-mono)}
.post-head h1{font-size:clamp(32px,5vw,50px);font-weight:800;letter-spacing:-.035em}
.post-dek{margin-top:18px;color:var(--muted);font-size:clamp(18px,2vw,21px);line-height:1.5}

/* Prose */
.prose{padding-top:14px}
.prose>*+*{margin-top:22px}
.prose p{color:var(--muted);font-size:17.5px;line-height:1.72}
.prose strong{color:var(--text);font-weight:600}
.prose a{color:var(--gold);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose h2{font-size:clamp(24px,3vw,30px);letter-spacing:-.02em;margin-top:52px;color:var(--text)}
.prose h2+*{margin-top:16px}
.prose ul{margin-top:18px;padding-left:0;list-style:none;display:grid;gap:11px}
.prose li{position:relative;padding-left:26px;color:var(--muted);font-size:17px;line-height:1.6}
.prose li::before{content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--gold);opacity:.85}
.prose blockquote{margin:30px 0;padding:20px 24px;border:1px solid var(--gold-line);border-radius:var(--radius);
  background:var(--gold-soft);color:var(--muted);font-size:16px}
.prose blockquote p{color:var(--muted);font-size:16px;margin:0}
.prose code{font-family:var(--ff-mono);font-size:.88em;background:var(--panel-2);border:1px solid var(--line-2);
  padding:2px 6px;border-radius:6px;color:var(--text)}

/* Diagram figure inside posts */
.post-diagram{margin:34px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.post-diagram div{border:1px solid var(--line);border-radius:14px;padding:16px;background:var(--panel-2)}
.post-diagram b{display:block;font-family:var(--ff-display);font-size:15px;font-weight:700;color:var(--text);letter-spacing:-.01em}
.post-diagram span{display:block;color:var(--faint);font-size:12.5px;margin-top:6px;line-height:1.4;font-family:var(--ff-mono)}

/* Post CTA + nav */
.post-cta{margin-top:56px;border:1px solid var(--gold-line);border-radius:var(--radius-lg);padding:32px;
  background:radial-gradient(circle at 50% -20%,var(--gold-soft),transparent 60%),var(--panel)}
.post-cta h2{font-size:24px}
.post-cta p{color:var(--muted);margin:12px 0 22px;font-size:16px}
.post-nav{margin-top:30px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.post-nav-link{display:flex;flex-direction:column;gap:5px;padding:18px 20px;border:1px solid var(--line);
  border-radius:var(--radius);background:var(--panel);transition:border-color .18s,background .18s}
.post-nav-link:hover{border-color:var(--gold-line);background:var(--panel-2)}
.post-nav-link.next{text-align:right}
.post-nav-link span{font-family:var(--ff-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.post-nav-link b{font-family:var(--ff-display);font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--text)}

@media (max-width:800px){
  .post-list{grid-template-columns:1fr}
  .post-diagram{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .post-diagram{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav-link.next{text-align:left}
}
