/* ================================================================
   MLC-en — shared stylesheet
   MLabChain / Mera · Digital Hana Arts
   ================================================================ */

/* ============================================================
   01 · TOKENS
   ============================================================ */
:root{
  --bg:      #05060a;
  --bg-1:    #0a0c12;
  --bg-2:    #0f131c;
  --bg-3:    #161b27;
  --line:    #1c2230;
  --line-hi: #2e3647;

  --fg:      #f0ebe0;
  --fg-1:    #c8c3b6;
  --fg-2:    #8a8578;
  --fg-3:    #545048;

  --amber:   #f5b642;
  --amber-2: #ffce6b;
  --amber-d: #7a5a1c;
  --teal:    #4ecdc4;
  --teal-d:  #1e5a55;
  --coral:   #ff5c44;
  --rose:    #e85d75;
  --lime:    #b8e986;
  --plum:    #8b6bb1;

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --serif: ui-serif, "Iowan Old Style", "Palatino Linotype", Georgia, "Times New Roman", serif;
  --display: var(--serif);

  --max: 1300px;
  --max-prose: 760px;
  --gut: clamp(20px, 4.5vw, 64px);

  --ease:    cubic-bezier(.22,.61,.36,1);
  --ease-o:  cubic-bezier(.16,1,.3,1);
  --ease-io: cubic-bezier(.65,0,.35,1);
}

/* ============================================================
   02 · RESET
   ============================================================ */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; scroll-padding-top:90px; -webkit-text-size-adjust:100%; }
body{
  background:var(--bg);
  color:var(--fg);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-feature-settings:"kern" 1,"liga" 1,"calt" 1;
}
img,svg,video,canvas{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:none; cursor:pointer; }
::selection{ background:var(--amber); color:#0a0a0c; }

/* ============================================================
   03 · OVERLAYS (grain + scanline + vignette)
   ============================================================ */
body::before{
  content:""; position:fixed; inset:0; z-index:9998; pointer-events:none;
  opacity:.055; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' seed='3'/></filter><rect width='240' height='240' filter='url(%23n)'/></svg>");
}
body::after{
  content:""; position:fixed; inset:0; z-index:9999; pointer-events:none;
  background:
    repeating-linear-gradient(to bottom,
      rgba(255,255,255,0) 0,
      rgba(255,255,255,0) 2px,
      rgba(255,255,255,.008) 2px,
      rgba(255,255,255,.008) 4px),
    radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,.5) 130%);
}

/* ============================================================
   04 · CURSOR
   ============================================================ */
.cursor{
  position:fixed; top:0; left:0; z-index:9997;
  width:12px; height:12px; border-radius:50%;
  background:var(--amber);
  pointer-events:none;
  mix-blend-mode:difference;
  transition:width .25s var(--ease), height .25s var(--ease), background .25s var(--ease);
  transform:translate(-50%,-50%);
  will-change:transform;
}
.cursor.hot{ width:36px; height:36px; background:var(--amber-2); }
@media (hover:none){ .cursor{ display:none; } }

/* ============================================================
   05 · NAV
   ============================================================ */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(5,6,10,.72);
  backdrop-filter:blur(20px) saturate(160%);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease), background .3s var(--ease);
}
.nav.scrolled{ border-bottom-color:var(--line); }
.nav-in{
  max-width:var(--max); margin:0 auto;
  padding:0 var(--gut);
  height:68px;
  display:flex; align-items:center; gap:24px;
}
.brand{
  display:flex; align-items:center; gap:11px;
  font-family:var(--mono); font-size:.76rem;
  letter-spacing:.2em; text-transform:uppercase;
  font-weight:500;
  color:var(--fg);
}
.brand img{ height:26px; width:auto; }
.brand .pulse{
  width:5px; height:5px; border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 12px var(--amber);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{ 0%,100%{ opacity:1; transform:scale(1);} 50%{ opacity:.4; transform:scale(.7);} }

.nav-menu{
  margin-left:auto;
  display:flex; gap:26px;
  font-family:var(--mono); font-size:.72rem;
  letter-spacing:.16em; text-transform:uppercase;
  align-items:center;
}
.nav-menu a{
  color:var(--fg-2); position:relative; padding:5px 0;
  transition:color .25s var(--ease);
}
.nav-menu a::before{
  content:"";
  position:absolute; left:0; bottom:0;
  width:100%; height:1px;
  background:var(--amber);
  transform:scaleX(0); transform-origin:right;
  transition:transform .4s var(--ease-o);
}
.nav-menu a:hover{ color:var(--fg); }
.nav-menu a:hover::before{ transform:scaleX(1); transform-origin:left; }
.nav-menu a[aria-current="page"]{ color:var(--amber); }

/* dropdown */
.nav-drop{ position:relative; }
.nav-drop > button{
  color:var(--fg-2); font-family:var(--mono); font-size:.72rem;
  letter-spacing:.16em; text-transform:uppercase;
  padding:5px 0; display:flex; align-items:center; gap:6px;
  transition:color .25s var(--ease);
}
.nav-drop > button::after{
  content:"▾"; font-size:.6em; opacity:.6;
  transition:transform .3s var(--ease);
}
.nav-drop:hover > button{ color:var(--fg); }
.nav-drop:hover > button::after{ transform:rotate(180deg); }

.nav-drop-menu{
  position:absolute; top:calc(100% + 14px); left:50%;
  transform:translateX(-50%) translateY(-6px);
  min-width:230px;
  padding:8px;
  background:var(--bg-1);
  border:1px solid var(--line-hi);
  border-radius:4px;
  box-shadow:0 20px 50px -18px rgba(0,0,0,.9);
  opacity:0; visibility:hidden;
  transition:opacity .25s var(--ease), transform .25s var(--ease-o), visibility 0s linear .25s;
}
.nav-drop:hover .nav-drop-menu,
.nav-drop:focus-within .nav-drop-menu{
  opacity:1; visibility:visible; transform:translateX(-50%) translateY(0);
  transition-delay:0s;
}
.nav-drop-menu a{
  display:block; padding:10px 14px;
  font-size:.72rem; letter-spacing:.14em;
  color:var(--fg-2); border-radius:3px;
  transition:background .2s var(--ease), color .2s var(--ease);
}
.nav-drop-menu a:hover{ background:var(--bg-2); color:var(--amber); }
.nav-drop-menu a::before{ display:none; }

.nav-prog{
  position:absolute; left:0; bottom:-1px;
  height:1px; width:0%;
  background:linear-gradient(90deg,var(--teal),var(--amber),var(--rose));
  transition:width .08s linear;
  box-shadow:0 0 8px var(--amber);
}

@media (max-width:900px){ .nav-menu{ display:none; } }

/* ============================================================
   06 · LAYOUT
   ============================================================ */
.wrap{
  max-width:var(--max); margin:0 auto;
  padding:0 var(--gut);
  position:relative; z-index:2;
}
.wrap-narrow{
  max-width:var(--max-prose); margin:0 auto;
  padding:0 var(--gut);
  position:relative; z-index:2;
}
section{
  position:relative;
  padding:clamp(90px,11vw,180px) 0;
  border-top:1px solid var(--line);
  overflow:hidden;
}
section:first-of-type{ border-top:none; }
section.tight{ padding:clamp(60px,7vw,110px) 0; }

/* ============================================================
   07 · TYPOGRAPHY
   ============================================================ */
.h1{
  font-family:var(--display);
  font-style:italic;
  font-weight:400;
  font-size:clamp(2.6rem,8vw,7.6rem);
  line-height:.94;
  letter-spacing:-.035em;
}
.h2{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(2rem,5vw,4.2rem);
  line-height:.98;
  letter-spacing:-.03em;
}
.h3{
  font-family:var(--sans);
  font-weight:600;
  font-size:1.12rem;
  letter-spacing:-.01em;
  line-height:1.3;
}
.h4{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.26em;
  text-transform:uppercase;
  font-weight:500;
}

.eyebrow{
  display:flex; align-items:center; gap:14px;
  font-family:var(--mono);
  font-size:.7rem;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--amber);
  margin-bottom:26px;
}
.eyebrow::before{
  content:""; width:30px; height:1px; background:var(--amber);
}

.lede{
  font-size:clamp(1rem,1.4vw,1.18rem);
  color:var(--fg-1);
  line-height:1.65;
  max-width:62ch;
}
p{ color:var(--fg-1); margin-bottom:14px; }
p.muted{ color:var(--fg-2); }
p strong{ color:var(--fg); font-weight:600; }
em{ font-style:italic; color:var(--amber-2); }

a.inline{
  color:var(--amber);
  border-bottom:1px solid var(--amber-d);
  transition:border-color .25s var(--ease), color .25s var(--ease);
}
a.inline:hover{ border-bottom-color:var(--amber); color:var(--amber-2); }

code{
  font-family:var(--mono); font-size:.88em;
  background:var(--bg-2);
  border:1px solid var(--line);
  padding:1px 6px; border-radius:3px;
  color:var(--amber-2);
}
pre{
  font-family:var(--mono); font-size:.82rem;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:6px;
  padding:22px 24px;
  overflow-x:auto;
  line-height:1.7;
  color:var(--fg-1);
}
pre .c{ color:var(--fg-3); }
pre .k{ color:var(--amber); }
pre .s{ color:var(--lime); }
pre .p{ color:var(--teal); }
pre .n{ color:var(--rose); }

/* ============================================================
   08 · REVEAL
   ============================================================ */
.rev{ opacity:0; transform:translateY(30px); transition:opacity 1.1s var(--ease-o), transform 1.1s var(--ease-o); }
.rev.on{ opacity:1; transform:none; }
.rev.d1{ transition-delay:.09s; } .rev.d2{ transition-delay:.18s; }
.rev.d3{ transition-delay:.27s; } .rev.d4{ transition-delay:.36s; }
.rev.d5{ transition-delay:.45s; } .rev.d6{ transition-delay:.54s; }

/* ============================================================
   09 · BUTTONS
   ============================================================ */
.btn{
  position:relative; display:inline-flex; align-items:center; gap:10px;
  padding:15px 26px;
  font-family:var(--mono); font-size:.76rem;
  letter-spacing:.16em; text-transform:uppercase;
  border:1px solid var(--line-hi);
  border-radius:2px;
  overflow:hidden;
  transition:color .35s var(--ease), border-color .35s var(--ease);
  cursor:pointer;
}
.btn::before{
  content:"";
  position:absolute; inset:0;
  background:var(--amber);
  transform:translateY(101%);
  transition:transform .5s var(--ease-o);
  z-index:0;
}
.btn > span{ position:relative; z-index:1; }
.btn:hover{ color:#0a0a0c; border-color:var(--amber); }
.btn:hover::before{ transform:translateY(0); }

.btn.primary{
  background:var(--amber); color:#0a0a0c; border-color:var(--amber);
}
.btn.primary::before{ background:var(--fg); }
.btn.primary:hover{ color:#0a0a0c; }

.btn.ghost{ border-color:var(--line); color:var(--fg-2); }
.btn.ghost:hover{ color:var(--fg); border-color:var(--amber); }

.btn .arr{ display:inline-block; transition:transform .35s var(--ease); }
.btn:hover .arr{ transform:translateX(5px); }

/* ============================================================
   10 · CARDS
   ============================================================ */
.grid{ display:grid; gap:18px; margin-top:36px; }
.g2{ grid-template-columns:repeat(2,1fr); }
.g3{ grid-template-columns:repeat(3,1fr); }
.g4{ grid-template-columns:repeat(4,1fr); }
@media (max-width:1000px){ .g4{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:900px){ .g3{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:640px){ .g2,.g3,.g4{ grid-template-columns:1fr; } }

.card{
  position:relative;
  padding:28px 26px;
  border:1px solid var(--line);
  border-radius:3px;
  background:var(--bg-1);
  overflow:hidden;
  transition:border-color .4s var(--ease), transform .5s var(--ease-o), background .4s var(--ease);
  display:flex; flex-direction:column;
}
.card::before{
  content:"";
  position:absolute; top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg,transparent,var(--amber),transparent);
  transform:scaleX(0);
  transition:transform .6s var(--ease-o);
}
.card:hover{
  border-color:var(--line-hi);
  background:var(--bg-2);
  transform:translateY(-3px);
}
.card:hover::before{ transform:scaleX(1); }

.card .idx{
  font-family:var(--mono);
  font-size:.62rem;
  letter-spacing:.24em;
  color:var(--amber);
  margin-bottom:14px;
  display:block;
}
.card h3{ margin-bottom:10px; }
.card p{ font-size:.92rem; color:var(--fg-2); margin:0; }

/* clickable card */
a.card{ cursor:pointer; }
a.card .go{
  margin-top:20px;
  font-family:var(--mono);
  font-size:.66rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--amber);
  display:flex; align-items:center; gap:8px;
  margin-top:auto;
  padding-top:20px;
}
a.card .go::after{
  content:"→";
  transition:transform .35s var(--ease);
}
a.card:hover .go::after{ transform:translateX(6px); }

/* ============================================================
   11 · QUOTE
   ============================================================ */
.quote{
  max-width:44ch;
  margin:clamp(60px,8vw,100px) auto;
  text-align:center;
  font-family:var(--display);
  font-style:italic;
  font-size:clamp(1.6rem,3.4vw,2.8rem);
  line-height:1.2;
  letter-spacing:-.02em;
  color:var(--fg);
  position:relative;
  padding:0 20px;
}
.quote::before,
.quote::after{
  font-family:var(--display);
  font-style:italic;
  color:var(--amber);
  font-size:1.4em;
  line-height:0;
  vertical-align:-.3em;
}
.quote::before{ content:"“"; margin-right:6px; }
.quote::after{ content:"”"; margin-left:6px; }
.quote em{
  color:var(--amber);
  background:linear-gradient(110deg,var(--amber),var(--rose));
  -webkit-background-clip:text; background-clip:text;
  color:transparent;
}

/* ============================================================
   12 · EDITORIAL COLUMNS
   ============================================================ */
.edit{
  display:grid;
  grid-template-columns:1fr 1.4fr;
  gap:clamp(32px,5vw,80px);
  margin-top:clamp(40px,6vw,80px);
  align-items:start;
}
@media (max-width:900px){ .edit{ grid-template-columns:1fr; } }

.edit-side{
  position:sticky; top:100px;
  padding-right:20px;
  border-right:1px solid var(--line);
}
@media (max-width:900px){
  .edit-side{ position:static; border-right:none; border-bottom:1px solid var(--line); padding:0 0 30px; }
}
.edit-side .num{
  font-family:var(--display);
  font-style:italic;
  font-size:3.6rem;
  color:var(--amber);
  line-height:1;
  letter-spacing:-.03em;
  margin-bottom:16px;
}
.edit-side p{ font-size:.92rem; color:var(--fg-2); }

.edit-main p{
  font-size:clamp(1rem,1.3vw,1.1rem);
  line-height:1.75;
  color:var(--fg-1);
}
.edit-main p:first-child::first-letter{
  font-family:var(--display);
  font-style:italic;
  font-size:4em;
  line-height:.8;
  float:left;
  margin:8px 12px 0 0;
  color:var(--amber);
}

/* ============================================================
   13 · SPLIT (honest boundary)
   ============================================================ */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  border:1px solid var(--line);
  border-radius:6px;
  overflow:hidden;
  margin-top:36px;
}
@media (max-width:820px){ .split{ grid-template-columns:1fr; } }
.split .col{ padding:36px clamp(24px,4vw,44px); }
.split .yes{
  background:linear-gradient(160deg, rgba(184,233,134,.05), transparent 60%);
  border-right:1px solid var(--line);
}
.split .no{
  background:linear-gradient(160deg, rgba(255,92,68,.05), transparent 60%);
}
@media (max-width:820px){
  .split .yes{ border-right:none; border-bottom:1px solid var(--line); }
}
.split h4{
  display:flex; align-items:center; gap:12px;
  margin-bottom:22px;
  font-family:var(--mono); font-size:.72rem;
  letter-spacing:.22em; text-transform:uppercase;
  font-weight:500;
}
.split h4 .dot{ width:8px; height:8px; border-radius:50%; }
.split .yes h4{ color:var(--lime); }
.split .yes h4 .dot{ background:var(--lime); box-shadow:0 0 10px var(--lime); }
.split .no h4{ color:var(--coral); }
.split .no h4 .dot{ background:var(--coral); box-shadow:0 0 10px var(--coral); }
.split ul{ list-style:none; }
.split li{
  padding:11px 0 11px 24px;
  position:relative;
  border-bottom:1px solid var(--line);
  font-size:.92rem;
  color:var(--fg-1);
}
.split li:last-child{ border-bottom:none; }
.split li::before{
  content:""; position:absolute; left:0; top:18px;
  width:10px; height:1px;
}
.split .yes li::before{ background:var(--lime); }
.split .no li::before{ background:var(--coral); }

/* ============================================================
   14 · TERMINAL
   ============================================================ */
.term{
  margin-top:36px;
  border:1px solid var(--line);
  border-radius:6px;
  overflow:hidden;
  background:#020305;
  font-family:var(--mono);
  font-size:.82rem;
  box-shadow:0 30px 70px -25px rgba(0,0,0,.85), 0 0 0 1px rgba(245,182,66,.05);
}
.term-bar{
  display:flex; align-items:center; gap:8px;
  padding:13px 18px;
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
}
.term-bar .d{ width:10px; height:10px; border-radius:50%; background:var(--bg-3); }
.term-bar .d.r{ background:#ff5f56; }
.term-bar .d.y{ background:#ffbd2e; }
.term-bar .d.g{ background:#27c93f; }
.term-bar .ttl{
  margin-left:auto;
  font-size:.64rem; letter-spacing:.2em;
  text-transform:uppercase; color:var(--fg-3);
}
.term-body{
  padding:24px 26px;
  line-height:1.9;
  min-height:360px;
  color:var(--fg-1);
}
.term-body .ln{ opacity:0; animation:lnIn .3s var(--ease-o) forwards; }
@keyframes lnIn{ to{ opacity:1; } }
.term-body .pr{ color:var(--amber); }
.term-body .cm{ color:var(--fg); }
.term-body .out{ color:var(--fg-2); }
.term-body .ok{ color:var(--lime); }
.term-body .bad{ color:var(--coral); }
.term-body .cr{
  display:inline-block;
  width:8px; height:14px;
  background:var(--amber);
  vertical-align:middle;
  animation:cr 1s steps(2) infinite;
}
@keyframes cr{ 0%,49%{opacity:1;} 50%,100%{opacity:0;} }

/* ============================================================
   15 · METERS
   ============================================================ */
.meters{
  display:flex; flex-direction:column; gap:22px;
  margin-top:36px;
  border-top:1px solid var(--line);
  padding-top:36px;
}
.meter{
  display:grid;
  grid-template-columns:220px 1fr 120px;
  gap:24px;
  align-items:center;
  padding:6px 0;
}
.meter .lb{
  font-family:var(--mono); font-size:.78rem;
  letter-spacing:.14em; text-transform:uppercase;
  color:var(--fg-1);
}
.meter .bar{
  height:2px; background:var(--bg-3);
  position:relative; overflow:hidden;
}
.meter .bar::after{
  content:""; position:absolute; inset:0 auto 0 0;
  width:0%;
  background:linear-gradient(90deg,var(--teal),var(--amber));
  transition:width 1.8s var(--ease-o);
}
.meter.on .bar::after{ width:var(--w,50%); }
.meter .vl{
  font-family:var(--mono); font-size:.72rem;
  color:var(--fg-2);
  text-align:right; letter-spacing:.06em;
}
@media (max-width:640px){
  .meter{ grid-template-columns:1fr; gap:8px; }
  .meter .vl{ text-align:left; }
}

/* ============================================================
   16 · FOOTER
   ============================================================ */
footer{
  padding:70px 0 90px;
  border-top:1px solid var(--line);
  background:var(--bg-1);
  position:relative;
  overflow:hidden;
}
.foot-in{
  max-width:var(--max); margin:0 auto;
  padding:0 var(--gut);
  display:grid;
  grid-template-columns:1fr auto;
  gap:40px;
  align-items:end;
}
@media (max-width:720px){ .foot-in{ grid-template-columns:1fr; } }
.foot-brand{
  display:flex; align-items:center; gap:18px;
  margin-bottom:22px;
}
.foot-brand img{ height:52px; width:auto; opacity:.9; }
.foot-brand .nm{
  font-family:var(--mono); font-size:.78rem;
  letter-spacing:.2em; text-transform:uppercase;
  color:var(--fg-1);
}
.foot-meta{
  font-family:var(--mono); font-size:.7rem;
  letter-spacing:.1em;
  color:var(--fg-3);
  line-height:2;
}
.foot-meta a{ color:var(--fg-2); border-bottom:1px solid transparent; transition:border-color .25s var(--ease); }
.foot-meta a:hover{ border-color:var(--amber); color:var(--fg); }
.foot-right{
  text-align:right;
  font-family:var(--mono); font-size:.68rem;
  letter-spacing:.16em; text-transform:uppercase;
  color:var(--fg-3);
}
.foot-right img{ height:32px; margin-left:auto; opacity:.7; }
@media (max-width:720px){ .foot-right{ text-align:left; } .foot-right img{ margin-left:0; } }

.foot-tagline{
  position:absolute; left:0; right:0; bottom:-.35em;
  font-family:var(--display); font-style:italic;
  font-size:clamp(4rem,18vw,16rem);
  line-height:.9;
  color:transparent;
  -webkit-text-stroke:1px var(--line-hi);
  text-align:center;
  letter-spacing:-.04em;
  pointer-events:none;
  white-space:nowrap;
  opacity:.5;
}

/* ============================================================
   17 · PAGE HERO (inner pages)
   ============================================================ */
.page-hero{
  position:relative;
  padding:calc(68px + clamp(60px,9vw,140px)) 0 clamp(50px,7vw,90px);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(60% 50% at 25% 20%, rgba(245,182,66,.08), transparent 70%),
    radial-gradient(40% 40% at 85% 75%, rgba(78,205,196,.06), transparent 70%);
}
.page-hero .wrap{ position:relative; z-index:2; }

.crumbs{
  font-family:var(--mono);
  font-size:.68rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--fg-3);
  display:flex; align-items:center; gap:10px;
  margin-bottom:26px;
}
.crumbs a{ color:var(--fg-2); transition:color .25s var(--ease); }
.crumbs a:hover{ color:var(--amber); }
.crumbs .sep{ color:var(--fg-3); opacity:.5; }
.crumbs .here{ color:var(--amber); }

.page-title{
  font-family:var(--display);
  font-style:italic;
  font-weight:400;
  font-size:clamp(2.4rem,6vw,5.6rem);
  line-height:.96;
  letter-spacing:-.035em;
  margin-bottom:24px;
}
.page-title em{
  background:linear-gradient(110deg,var(--amber) 0%,var(--rose) 70%);
  -webkit-background-clip:text; background-clip:text;
  color:transparent;
}
.page-lede{
  font-size:clamp(1.02rem,1.4vw,1.2rem);
  color:var(--fg-1);
  line-height:1.65;
  max-width:66ch;
}

/* ============================================================
   18 · PROSE LAYOUT
   ============================================================ */
.prose-layout{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:clamp(32px,5vw,72px);
  padding:clamp(50px,7vw,90px) 0;
  align-items:start;
}
@media (max-width:960px){
  .prose-layout{ grid-template-columns:1fr; gap:24px; }
}

.toc{
  position:sticky; top:100px;
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.08em;
}
@media (max-width:960px){
  .toc{ position:static; }
}
.toc h5{
  font-size:.62rem;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--fg-3);
  margin-bottom:16px;
  font-weight:500;
}
.toc ol{
  list-style:none;
  counter-reset:toc;
  border-left:1px solid var(--line);
}
.toc li{
  counter-increment:toc;
  position:relative;
  padding:6px 0 6px 18px;
  color:var(--fg-2);
}
.toc li::before{
  content:counter(toc,decimal-leading-zero);
  position:absolute; left:-1px; top:6px;
  transform:translateX(-100%);
  padding-right:10px;
  color:var(--fg-3);
  font-size:.62rem;
  letter-spacing:.06em;
  background:var(--bg);
  padding-left:6px;
  padding-right:14px;
}
.toc a{
  color:var(--fg-2);
  transition:color .25s var(--ease);
  display:block;
  line-height:1.5;
}
.toc a:hover{ color:var(--fg); }
.toc a.active{
  color:var(--amber);
  position:relative;
}
.toc a.active::before{
  content:"";
  position:absolute; left:-19px; top:50%;
  width:3px; height:14px;
  background:var(--amber);
  transform:translateY(-50%);
}

.prose{
  max-width:var(--max-prose);
  font-size:clamp(1rem,1.2vw,1.06rem);
  line-height:1.8;
  color:var(--fg-1);
}
.prose h2{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.1;
  letter-spacing:-.025em;
  color:var(--fg);
  margin:clamp(56px,6vw,80px) 0 22px;
  scroll-margin-top:100px;
}
.prose h2:first-child{ margin-top:0; }
.prose h3{
  font-family:var(--sans);
  font-weight:600;
  font-size:1.2rem;
  color:var(--fg);
  margin:40px 0 14px;
  scroll-margin-top:100px;
}
.prose h4{
  font-family:var(--mono);
  font-size:.78rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--amber);
  margin:32px 0 12px;
  font-weight:500;
}
.prose p{
  color:var(--fg-1);
  margin-bottom:18px;
}
.prose p strong{ color:var(--fg); font-weight:600; }
.prose em{ font-style:italic; color:var(--amber-2); }
.prose a{
  color:var(--amber);
  border-bottom:1px solid var(--amber-d);
  transition:border-color .25s var(--ease);
}
.prose a:hover{ border-bottom-color:var(--amber); }
.prose ul, .prose ol{
  color:var(--fg-1);
  padding-left:24px;
  margin-bottom:20px;
}
.prose li{ margin-bottom:10px; line-height:1.75; }
.prose li::marker{ color:var(--amber); }
.prose ul li::marker{ content:"— "; }
.prose code{
  font-family:var(--mono); font-size:.88em;
  background:var(--bg-2);
  border:1px solid var(--line);
  padding:1px 6px; border-radius:3px;
  color:var(--amber-2);
}
.prose pre{
  margin:24px 0;
  font-size:.82rem;
}
.prose pre code{
  background:none;
  border:none;
  padding:0;
  color:inherit;
}
.prose blockquote{
  border-left:2px solid var(--amber);
  padding:8px 0 8px 24px;
  margin:28px 0;
  font-family:var(--display);
  font-style:italic;
  font-size:1.2rem;
  line-height:1.55;
  color:var(--fg);
}
.prose hr{
  border:none;
  border-top:1px solid var(--line);
  margin:60px 0;
}

/* ============================================================
   19 · CALLOUTS
   ============================================================ */
.callout{
  border:1px solid var(--line);
  border-left:3px solid var(--amber);
  border-radius:4px;
  padding:22px 26px;
  margin:28px 0;
  background:linear-gradient(160deg, rgba(245,182,66,.04), transparent 60%);
}
.callout.good{
  border-left-color:var(--lime);
  background:linear-gradient(160deg, rgba(184,233,134,.05), transparent 60%);
}
.callout.warn{
  border-left-color:var(--amber);
  background:linear-gradient(160deg, rgba(245,182,66,.06), transparent 60%);
}
.callout.bad{
  border-left-color:var(--coral);
  background:linear-gradient(160deg, rgba(255,92,68,.06), transparent 60%);
}
.callout h5{
  font-family:var(--mono);
  font-size:.66rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--amber);
  margin-bottom:10px;
  font-weight:500;
}
.callout.good h5{ color:var(--lime); }
.callout.bad h5{ color:var(--coral); }
.callout p:last-child{ margin-bottom:0; }

/* ============================================================
   20 · TABLES
   ============================================================ */
.data-table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-family:var(--mono);
  font-size:.82rem;
}
.data-table th,
.data-table td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
  color:var(--fg-1);
}
.data-table th{
  font-size:.66rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--fg-3);
  font-weight:500;
  border-bottom-color:var(--line-hi);
}
.data-table td:first-child{ color:var(--fg); }
.data-table td.num{
  text-align:right;
  color:var(--amber-2);
  font-variant-numeric:tabular-nums;
}
.data-table tr:hover td{ background:rgba(245,182,66,.03); }

/* ============================================================
   21 · TIMELINE
   ============================================================ */
.timeline{
  list-style:none;
  position:relative;
  padding-left:28px;
  margin:28px 0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:5px; top:8px; bottom:8px;
  width:1px;
  background:linear-gradient(to bottom,var(--amber),var(--line));
}
.timeline li{
  position:relative;
  padding:0 0 26px 12px;
}
.timeline li::before{
  content:"";
  position:absolute;
  left:-28px; top:6px;
  width:11px; height:11px;
  border-radius:50%;
  background:var(--bg);
  border:1px solid var(--amber);
  box-shadow:0 0 10px rgba(245,182,66,.4);
}
.timeline .y{
  font-family:var(--mono);
  font-size:.68rem;
  letter-spacing:.2em;
  color:var(--amber);
  margin-bottom:4px;
  display:block;
}
.timeline .t{
  color:var(--fg);
  font-weight:600;
  display:block;
  margin-bottom:4px;
}
.timeline p{
  font-size:.9rem;
  color:var(--fg-2);
  margin:0;
}

/* ============================================================
   22 · NEXT / PREV
   ============================================================ */
.next-prev{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
@media (max-width:640px){ .next-prev{ grid-template-columns:1fr; } }
.next-prev a{
  padding:36px clamp(24px,4vw,48px);
  transition:background .3s var(--ease);
  display:flex; flex-direction:column;
  gap:10px;
}
.next-prev a:first-child{ border-right:1px solid var(--line); }
@media (max-width:640px){
  .next-prev a:first-child{ border-right:none; border-bottom:1px solid var(--line); }
}
.next-prev a:hover{ background:var(--bg-1); }
.next-prev .lbl{
  font-family:var(--mono);
  font-size:.62rem;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--fg-3);
  display:flex; align-items:center; gap:10px;
}
.next-prev .ttl{
  font-family:var(--display);
  font-style:italic;
  font-size:1.5rem;
  color:var(--fg);
  letter-spacing:-.02em;
}
.next-prev a.next{ text-align:right; align-items:flex-end; }
.next-prev a.next .lbl{ flex-direction:row-reverse; }

/* ============================================================
   23 · HUB PAGE (learn.html)
   ============================================================ */
.hub-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
  margin-top:40px;
}
@media (max-width:820px){ .hub-grid{ grid-template-columns:1fr; } }
.hub-card{
  position:relative;
  padding:36px 34px 34px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--bg-1);
  transition:all .4s var(--ease);
  display:flex; flex-direction:column; gap:16px;
  min-height:260px;
  overflow:hidden;
}
.hub-card::before{
  content:"";
  position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg,var(--amber),transparent);
  transform:scaleX(0); transform-origin:left;
  transition:transform .6s var(--ease-o);
}
.hub-card:hover{
  border-color:var(--line-hi);
  background:var(--bg-2);
  transform:translateY(-3px);
}
.hub-card:hover::before{ transform:scaleX(1); }
.hub-card .num{
  font-family:var(--mono);
  font-size:.66rem;
  letter-spacing:.24em;
  color:var(--amber);
}
.hub-card h3{
  font-family:var(--display);
  font-style:italic;
  font-weight:400;
  font-size:1.8rem;
  letter-spacing:-.02em;
  line-height:1.15;
}
.hub-card p{
  font-size:.94rem;
  color:var(--fg-2);
  margin:0;
}
.hub-card .meta{
  margin-top:auto;
  display:flex; align-items:center; justify-content:space-between;
  font-family:var(--mono);
  font-size:.66rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--fg-3);
  padding-top:20px;
  border-top:1px solid var(--line);
}
.hub-card:hover .meta{ color:var(--amber); }

/* ============================================================
   24 · REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .rev{ opacity:1; transform:none; }
  .meter .bar::after{ width:var(--w,50%); }
}