/* =============================================================
   DZAI — landing page
   Tokens are taken verbatim from BRAND.md §2. Do not substitute.
   Gold is a hero accent, not a theme colour:
     - solid gold fill appears ONCE on this page (hero primary CTA)
     - one hero moment (the mark + the panel light-bar)
     - everywhere else: bone text, near-black surfaces, hairlines
   ============================================================= */

/* ---------- 1. tokens ---------------------------------------- */
:root{
  /* surfaces — near-black, warm-shifted (NOT neutral grey) */
  --ash:      #0A0908;
  --char:     #121010;
  --panel:    #16130F;
  --panel2:   #1B1712;
  --steel-hi: #2B2723;
  --steel:    #1C1916;
  --steel-lo: #0F0D0B;

  /* ember / gold — THE accent */
  --ember-hi: #FCD34D;
  --ember:    #F59E0B;
  --ember-lo: #B45309;
  --gold-grad: linear-gradient(90deg,#FCD34D 0%,#F59E0B 52%,#B45309 100%);

  /* status */
  --blood: #EF4444;
  --toxic: #34D399;
  --intel: #38BDF8;

  /* text */
  --bone:  #F3EEE7;
  --dim:   rgba(243,238,231,0.55);
  --faint: rgba(243,238,231,0.30);
  --ink:   #141110;

  /* hairlines */
  --line:  rgba(255,255,255,0.07);
  --line2: rgba(255,255,255,0.12);

  /* radii — BRAND.md §4 */
  --r-card: 18px;
  --r-tile: 16px;
  --r-chip: 6px;
  --r-pill: 999px;

  /* motion — BRAND.md §4 */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 180ms;
  --t-base: 320ms;
  --t-slow: 620ms;

  /* type */
  --display: 'Saira Semi Condensed','SSC Local','Saira Condensed',Impact,sans-serif;
  --numeric: 'Saira Condensed','SC Local','Saira Semi Condensed',sans-serif;
  --body:    'Saira','Saira Local',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:    'Martian Mono','MM Local',ui-monospace,'SFMono-Regular','Consolas',monospace;

  --gutter: 24px;
  --maxw: 1180px;
  --nav-h: 68px;
}

/* ---------- 2. local font fallbacks (CDN is primary) ---------- */
@font-face{font-family:'SSC Local';src:url('../fonts/SairaSemiCondensed-Black.ttf') format('truetype');font-weight:900;font-display:swap}
@font-face{font-family:'SSC Local';src:url('../fonts/SairaSemiCondensed-ExtraBold.ttf') format('truetype');font-weight:800;font-display:swap}
@font-face{font-family:'SC Local';src:url('../fonts/SairaCondensed-Black.ttf') format('truetype');font-weight:900;font-display:swap}
@font-face{font-family:'Saira Local';src:url('../fonts/Saira-Medium.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:'MM Local';src:url('../fonts/MartianMono-Regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:'MM Local';src:url('../fonts/MartianMono-Medium.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:'MM Local';src:url('../fonts/MartianMono-Bold.ttf') format('truetype');font-weight:700;font-display:swap}

/* ---------- 3. reset ----------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 24px)}
body{
  margin:0;
  background:var(--ash);
  color:var(--bone);
  font-family:var(--body);
  font-weight:500;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(245,158,11,.22);color:var(--bone)}
:focus-visible{outline:1px solid var(--ember);outline-offset:3px}

.skip{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--panel2);color:var(--bone);border:1px solid var(--line2);
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  padding:12px 16px;border-radius:var(--r-chip);
}
.skip:focus{left:16px;top:16px}

/* ---------- 4. type primitives -------------------------------- */
/* inline-block, not flex: the label must wrap as ordinary text at
   narrow widths instead of breaking into flex items */
.kicker{
  font-family:var(--mono);
  font-weight:500;
  font-size:11px;
  line-height:1.55;
  letter-spacing:1.32px;
  text-transform:uppercase;
  color:var(--faint);
  display:inline-block;
}
.kicker::before{
  content:'';
  display:inline-block;vertical-align:middle;
  width:18px;height:1px;
  background:var(--line2);
  margin-right:10px;margin-bottom:2px;
}
.kicker b{color:var(--dim);font-weight:500}

.mono{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  line-height:1.4;
}

h1,h2,h3,.h1,.h2,.h3{
  font-family:var(--display);
  font-weight:900;
  text-transform:uppercase;
  line-height:.94;
  letter-spacing:-.01em;
}
h1,.h1{font-size:clamp(40px,5.7vw,72px);letter-spacing:-.022em;line-height:.92}
h2,.h2{font-size:clamp(30px,4.4vw,50px);letter-spacing:-.015em}
h3,.h3{font-family:var(--display);font-weight:800;font-size:18px;letter-spacing:.005em;line-height:1.2}

.lead{font-size:clamp(16px,1.6vw,18.5px);color:var(--dim);line-height:1.62;max-width:60ch}
.lead em{font-style:normal;color:var(--bone)}
p{color:var(--dim)}
strong{color:var(--bone);font-weight:600}

.num{
  font-family:var(--numeric);
  font-weight:900;
  letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;
  color:var(--bone);
  line-height:1;
}

/* ---------- 5. layout ----------------------------------------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
section{position:relative}
.band{padding-block:clamp(72px,9vw,124px);border-top:1px solid var(--line)}
.band--tight{padding-block:clamp(56px,6vw,84px)}
.sec-head{max-width:780px;margin-bottom:clamp(36px,4.5vw,58px)}
.sec-head .kicker{margin-bottom:18px}
.sec-head h2{margin-bottom:18px}

.grid{display:grid;gap:1px;background:var(--line)}

/* ---------- 6. placeholders (pending real input) -------------- */
/* deliberately obvious, in-palette, never gold */
.pend{
  border-bottom:1px dashed rgba(56,189,248,.55);
  color:var(--bone);
  padding-bottom:1px;
}
.pend sup{
  font-family:var(--mono);
  font-size:8px;
  letter-spacing:.12em;
  color:var(--intel);
  vertical-align:super;
  margin-left:4px;
  text-transform:uppercase;
}
.pendbox{
  border:1px dashed rgba(56,189,248,.38);
  border-radius:var(--r-card);
  background:rgba(56,189,248,.035);
  padding:22px 24px;
}
.pendbox .mono{color:var(--intel);display:block;margin-bottom:10px}
.pendbox p{color:var(--dim);font-size:15px;max-width:70ch}
.pendbox p + p{margin-top:8px}
.pendbox em{color:var(--bone);font-style:normal;font-weight:600}

/* inline code / filenames — mono, per the type DNA */
.code{
  font-family:var(--mono);font-size:.84em;letter-spacing:.02em;
  color:var(--bone);background:rgba(255,255,255,.05);
  border:1px solid var(--line);border-radius:4px;padding:1px 5px;
  white-space:nowrap;
}

/* ---------- 7. nav -------------------------------------------- */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:60;
  height:var(--nav-h);
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background var(--t-base) var(--ease),border-color var(--t-base) var(--ease),backdrop-filter var(--t-base) var(--ease);
}
.nav.is-stuck{
  background:rgba(10,9,8,.86);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.nav .wrap{display:flex;align-items:center;gap:28px}

.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand img{width:30px;height:30px}
.brand .wordmark{
  font-family:var(--display);font-weight:900;font-size:20px;
  letter-spacing:.04em;text-transform:uppercase;color:var(--bone);line-height:1;
}
.brand .sub{
  font-family:var(--mono);font-size:9px;letter-spacing:.16em;
  color:var(--faint);text-transform:uppercase;line-height:1;margin-top:3px;
}
.brand .stack{display:flex;flex-direction:column}

.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--dim);
  transition:color var(--t-fast) var(--ease);
  position:relative;padding-block:6px;
  white-space:nowrap;
}
.nav-links a::after{
  content:'';position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--line2);transition:right var(--t-base) var(--ease);
}
.nav-links a:hover{color:var(--bone)}
.nav-links a:hover::after{right:0}
.nav-links a.is-here{color:var(--bone)}
.nav-links a.is-here::after{right:0;background:rgba(245,158,11,.55)}

.nav-cta{display:flex;align-items:center;gap:10px;flex:none}

.nav-toggle{display:none;width:38px;height:38px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-chip)}
.nav-toggle span{display:block;width:15px;height:1px;background:var(--bone);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:'';position:absolute;left:0;width:15px;height:1px;background:var(--bone);transition:transform var(--t-base) var(--ease)}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ---------- 8. buttons ---------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:14px;letter-spacing:.06em;
  height:44px;padding-inline:20px;
  border-radius:var(--r-chip);
  border:1px solid var(--line2);
  color:var(--bone);
  transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
  white-space:nowrap;
}
.btn:hover{border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.04)}
.btn:active{transform:translateY(1px)}
.btn--sm{height:36px;font-size:12.5px;padding-inline:14px}
.btn--lg{height:52px;font-size:15.5px;padding-inline:28px}
.btn--quiet{border-color:var(--line);color:var(--dim)}
.btn--quiet:hover{color:var(--bone)}

/* THE gold button — used exactly once (hero) */
.btn--gold{
  background:var(--gold-grad);
  color:var(--ink);
  border-color:transparent;
  font-weight:900;
  box-shadow:0 0 0 1px rgba(252,211,77,.28),0 10px 30px -12px rgba(245,158,11,.5);
}
.btn--gold:hover{
  background:var(--gold-grad);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(252,211,77,.42),0 12px 34px -12px rgba(245,158,11,.62);
}
/* the closing CTA — gold as hairline + text only, never a wash */
.btn--goldline{
  border-color:rgba(245,158,11,.45);
  color:var(--ember-hi);
  background:rgba(245,158,11,.05);
}
.btn--goldline:hover{
  border-color:rgba(245,158,11,.75);
  background:rgba(245,158,11,.09);
  color:var(--ember-hi);
}
.btn .arw{
  width:14px;height:1px;background:currentColor;position:relative;flex:none;
  transition:width var(--t-fast) var(--ease);
}
.btn .arw::after{
  content:'';position:absolute;right:0;top:-2.5px;
  width:5px;height:5px;border-top:1px solid currentColor;border-right:1px solid currentColor;
  transform:rotate(45deg);
}
.btn:hover .arw{width:20px}

/* ---------- 9. hero ------------------------------------------- */
.hero{
  position:relative;
  padding-top:calc(var(--nav-h) + clamp(56px,9vw,110px));
  padding-bottom:clamp(64px,8vw,104px);
  overflow:hidden;
  isolation:isolate;
}
#field{
  position:absolute;inset:0;width:100%;height:100%;
  z-index:-2;pointer-events:none;
  /* hold the field back over the headline column so the ribbons stay
     atmosphere and never compete with the type */
  -webkit-mask-image:linear-gradient(100deg,rgba(0,0,0,.46) 0%,rgba(0,0,0,.6) 28%,rgba(0,0,0,.92) 60%,#000 80%);
  mask-image:linear-gradient(100deg,rgba(0,0,0,.46) 0%,rgba(0,0,0,.6) 28%,rgba(0,0,0,.92) 60%,#000 80%);
}
.hero-grid{
  position:absolute;inset:0;z-index:-2;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:88px 88px;
  -webkit-mask-image:radial-gradient(120% 90% at 50% 12%,#000 0%,transparent 72%);
  mask-image:radial-gradient(120% 90% at 50% 12%,#000 0%,transparent 72%);
}
.hero-glow{
  position:absolute;z-index:-2;pointer-events:none;
  left:50%;top:-260px;transform:translateX(-50%);
  width:min(1100px,120vw);height:620px;
  background:radial-gradient(50% 50% at 50% 50%,rgba(245,158,11,.10) 0%,rgba(180,83,9,.05) 38%,transparent 70%);
  filter:blur(10px);
}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:start}

.hero-mark{
  position:relative;flex:none;
  width:clamp(160px,20vw,244px);
  filter:drop-shadow(0 24px 60px rgba(245,158,11,.20));
  animation:markIn 900ms var(--ease) both;
}
.hero-mark img{width:100%;height:auto}
.hero-mark::after{
  content:'';position:absolute;inset:-14% -14% auto -14%;height:128%;
  background:radial-gradient(50% 50% at 50% 50%,rgba(245,158,11,.16),transparent 68%);
  z-index:-1;
}
@keyframes markIn{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}

.hero h1{margin-block:20px 22px;max-width:24ch}
/* three short stamped lines — the copilot beat, one line each */
.h1--stack{font-size:clamp(44px,7vw,92px);line-height:.9;letter-spacing:-.025em;max-width:none}
.hero h1 .lo{color:var(--dim)}
.hero-sub{max-width:56ch;font-size:clamp(16px,1.55vw,18.5px)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;align-items:center}
.hero-note{
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--faint);margin-top:16px;
}

/* draft-copy flag */
.draft{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--intel);
  border:1px dashed rgba(56,189,248,.4);
  border-radius:var(--r-chip);
  padding:5px 9px;line-height:1;
  margin-bottom:16px;
}
.draft::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--intel);opacity:.8}

/* hero readout strip */
.readout{
  margin-top:clamp(48px,6vw,76px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(27,23,18,.7),rgba(15,13,11,.55));
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  position:relative;
  overflow:hidden;
}
/* the single hero light-bar — the one "hero moment" of gold */
.readout::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--gold-grad);opacity:.85;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);
}
.readout-row{display:grid;grid-template-columns:repeat(4,1fr)}
.readout-cell{padding:20px 22px;border-left:1px solid var(--line)}
.readout-cell:first-child{border-left:0}
.readout-cell .k{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);display:flex;align-items:center;gap:7px;margin-bottom:9px;
}
.readout-cell .v{
  font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:15px;letter-spacing:.02em;color:var(--bone);line-height:1.25;
}
/* Neutral index tick. Deliberately NOT a glowing green "online" LED —
   nothing on this page may imply live status (see the Limits section). */
.led{width:7px;height:1px;background:var(--line2);flex:none}
.led--intel{width:11px;background:var(--intel);opacity:.8}

/* corner brackets — instrument framing */
.brackets{position:absolute;inset:0;pointer-events:none}
.brackets i{position:absolute;width:12px;height:12px;border:0 solid var(--line2)}
.brackets i:nth-child(1){top:8px;left:8px;border-top-width:1px;border-left-width:1px}
.brackets i:nth-child(2){top:8px;right:8px;border-top-width:1px;border-right-width:1px}
.brackets i:nth-child(3){bottom:8px;left:8px;border-bottom-width:1px;border-left-width:1px}
.brackets i:nth-child(4){bottom:8px;right:8px;border-bottom-width:1px;border-right-width:1px}

/* ---------- 9b. sub-page hero + about ------------------------- */
/* Shorter than the landing hero, and without the gold mark: one hero
   moment per site, and it belongs on the landing page. */
.hero--sub{
  padding-top:calc(var(--nav-h) + clamp(52px,7vw,92px));
  padding-bottom:clamp(40px,5vw,66px);
}
.hero--sub .hero-inner{grid-template-columns:minmax(0,1fr)}
.hero--sub h1{max-width:22ch;margin-block:18px 20px}
.hero--sub .hero-sub{max-width:66ch}

/* two-up variant of the hairline cell grid.
   Two classes so it beats .grind / .limits regardless of source order. */
.grid.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}

/* the origin ledger: what kept happening -> what it became */
.origin{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.origin-grid{
  display:grid;grid-template-columns:1.45fr 1fr;
  gap:1px;background:var(--line);
}
.origin-h{
  background:var(--char);padding:14px 26px;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--faint);
}
.origin-grid .was,
.origin-grid .now{background:var(--ash);padding:20px 26px 22px;transition:background var(--t-base) var(--ease)}
.origin-grid .was{font-size:14.5px;line-height:1.6;color:var(--dim)}
.origin-grid .now{
  display:flex;align-items:flex-start;gap:11px;
  font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:14px;letter-spacing:.02em;line-height:1.25;color:var(--bone);
}
.origin-grid .now::before{
  content:'';flex:none;width:12px;height:1px;background:var(--line2);
  margin-top:8px;position:relative;
}
.origin-grid .now::after{
  content:'';position:absolute;
}
.origin-row:hover .was,.origin-row:hover .now{background:var(--char)}

/* ---------- 10. grind grid ------------------------------------ */
.grind{grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.grind-cell{
  background:var(--ash);
  padding:30px 28px 34px;
  position:relative;
  transition:background var(--t-base) var(--ease);
}
.grind-cell:hover{background:var(--char)}
.grind-cell .idx{
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--faint);
  display:block;margin-bottom:16px;
}
.grind-cell h3{margin-bottom:10px;color:var(--bone)}
.grind-cell p{font-size:15px;line-height:1.6}

/* ---------- 11. module tiles ---------------------------------- */
.modules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.tile{
  position:relative;
  background:linear-gradient(180deg,var(--panel2),var(--panel));
  border:1px solid var(--line);
  border-radius:var(--r-tile);
  padding:26px 24px 28px;
  overflow:hidden;
  transition:border-color var(--t-base) var(--ease),transform var(--t-base) var(--ease),background var(--t-base) var(--ease);
}
.tile::before{
  content:'';position:absolute;top:0;left:24px;right:24px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(245,158,11,.45),transparent);
  opacity:0;transition:opacity var(--t-base) var(--ease);
}
.tile:hover{border-color:var(--line2);transform:translateY(-2px)}
.tile:hover::before{opacity:1}
.tile .tag{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);display:flex;align-items:center;gap:8px;margin-bottom:20px;
}
.tile h3{margin-bottom:11px}
.tile p{font-size:14.5px;line-height:1.62}
.tile p a{color:var(--bone);border-bottom:1px solid var(--line2);white-space:nowrap;transition:border-color var(--t-fast) var(--ease)}
.tile p a:hover{border-bottom-color:rgba(255,255,255,.4)}
.tile em{font-style:normal;color:var(--bone)}
.tile--wide{grid-column:1/-1}
.tile--w2{grid-column:span 2}

.glyph{
  width:34px;height:34px;margin-bottom:18px;
  border:1px solid var(--line2);border-radius:var(--r-chip);
  display:grid;place-items:center;color:var(--dim);
  transition:color var(--t-base) var(--ease),border-color var(--t-base) var(--ease);
}
.tile:hover .glyph{color:var(--bone);border-color:rgba(255,255,255,.2)}
.glyph svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.4;stroke-linecap:square}

/* ---------- 11b. feature racks --------------------------------- */
/* Grouped by who stops waiting, not by subsystem — the breadth is the
   point, so it needs structure a flat tile wall can't give it. */
.racks{display:flex;flex-direction:column;gap:16px}

.rack{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--panel);overflow:hidden;
  transition:border-color var(--t-base) var(--ease);
}
.rack:hover{border-color:var(--line2)}

.rack-head{padding:24px 28px 22px;border-bottom:1px solid var(--line)}
.rack-head .rk{
  display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--faint);margin-bottom:12px;
}
.rack-head h3{font-size:clamp(17px,1.9vw,21px);margin-bottom:9px}
.rack-head p{font-size:14.5px;line-height:1.6;max-width:74ch}

.rack-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line)}
.rack-cell{background:var(--ash);padding:22px 24px 26px;transition:background var(--t-base) var(--ease)}
.rack-cell:hover{background:var(--char)}
.rc-title{
  display:block;font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:14.5px;letter-spacing:.015em;line-height:1.2;color:var(--bone);margin-bottom:9px;
}
.rack-cell p{font-size:13.5px;line-height:1.6}
.rack-cell em{font-style:normal;color:var(--bone)}

/* ---------- 12. terminal -------------------------------------- */
.ai-split{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:clamp(28px,4vw,56px);align-items:start}
.term{
  border:1px solid var(--line2);
  border-radius:var(--r-card);
  background:var(--steel-lo);
  overflow:hidden;
  box-shadow:0 30px 80px -40px rgba(0,0,0,.9);
}
.term-bar{
  display:flex;align-items:center;gap:10px;
  padding:11px 16px;border-bottom:1px solid var(--line);
  background:var(--char);
}
.term-bar .dot{width:6px;height:6px;border-radius:50%;background:var(--steel-hi)}
.term-bar .title{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);margin-left:6px;
}
.term-bar .badge{
  margin-left:auto;
  font-family:var(--mono);font-size:8.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--intel);border:1px dashed rgba(56,189,248,.4);border-radius:4px;padding:3px 7px;line-height:1;
}
.term-body{
  padding:20px 20px 22px;
  font-family:var(--mono);font-size:12px;line-height:1.85;
  min-height:290px;
}
.term-line{display:flex;gap:10px;margin-bottom:2px}
.term-line .who{flex:none;letter-spacing:.1em;text-transform:uppercase;font-size:10px;padding-top:2px;width:74px}
.who--p{color:var(--faint)}
.who--ai{color:var(--ember);opacity:.85}
.who--sys{color:var(--toxic);opacity:.8}
.term-line .msg{color:var(--dim);letter-spacing:0}
.term-line.is-ai .msg{color:var(--bone)}
.term-line.is-sys .msg{color:rgba(52,211,153,.75);font-size:11px}
.caret{display:inline-block;width:7px;height:13px;background:var(--ember);vertical-align:-2px;margin-left:2px;animation:blink 1.05s steps(1,end) infinite}
@keyframes blink{0%,50%{opacity:1}50.01%,100%{opacity:0}}

.ai-points{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:30px}
.ai-point{background:var(--ash);padding:20px 22px}
.ai-point .k{font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--faint);margin-bottom:8px;display:block}
.ai-point p{font-size:14.5px;line-height:1.6}

/* ---------- 12b. copilot (flagship) --------------------------- */
.copilot-split{
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:clamp(28px,4vw,56px);align-items:start;
}
.term--copilot .cp-body{font-family:var(--mono)}

.cp-prompt{
  display:flex;gap:10px;padding:18px 20px;
  border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.015);
  font-size:12.5px;line-height:1.7;color:var(--bone);
  min-height:72px;
}
.cp-caret{color:var(--ember);opacity:.8;flex:none}
.cp-typed{letter-spacing:0}

.cp-stage{
  padding:18px 20px 20px;
  opacity:0;transform:translateY(6px);
  transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease);
}
.cp-stage.is-in{opacity:1;transform:none}

.cp-block + .cp-block{margin-top:20px}
.cp-head{
  font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);padding-bottom:9px;margin-bottom:11px;
  border-bottom:1px solid var(--line);
}
.cp-files{display:flex;flex-direction:column;gap:7px}
.cp-files li{display:flex;align-items:baseline;gap:14px;font-size:11.5px}
.cp-files .f{color:var(--bone)}
.cp-files .c{margin-left:auto;color:var(--faint);white-space:nowrap}

.cp-diff{
  margin:0;font-family:var(--mono);font-size:11px;line-height:1.85;
  overflow-x:auto;white-space:pre;
}
.cp-diff span{display:block;padding-inline:8px;margin-inline:-8px;border-left:2px solid transparent}
.d-ctx{color:var(--faint)}
.d-del{color:rgba(239,68,68,.85);background:rgba(239,68,68,.07);border-left-color:rgba(239,68,68,.4)}
.d-add{color:rgba(52,211,153,.9);background:rgba(52,211,153,.07);border-left-color:rgba(52,211,153,.45)}

.cp-actions{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
}
/* mock controls: not interactive, and deliberately not gold — the
   page's one gold fill stays on the hero CTA */
.cp-btn{
  font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:11.5px;letter-spacing:.07em;
  padding:8px 13px;border-radius:var(--r-chip);
  border:1px solid var(--line2);color:var(--dim);cursor:default;
}
.cp-btn--go{border-color:rgba(243,238,231,.42);color:var(--bone);background:rgba(255,255,255,.06)}
.cp-you{
  font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);
  margin-left:auto;white-space:nowrap;
}

/* pull statement — the spine of the argument, stated once */
.pull{margin:0;padding:0 0 0 22px;border-left:1px solid var(--line2)}
.pull p{
  font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:clamp(18px,2vw,23px);line-height:1.14;letter-spacing:-.005em;
  color:var(--bone);
}

/* the nine-step chain */
.chain-wrap{
  margin-top:clamp(30px,4vw,52px);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:var(--ash);
}
.chain-head{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  padding:16px 20px;border-bottom:1px solid var(--line);
}
.chain-head .mono{color:var(--dim)}
.chain-note{
  margin-left:auto;font-family:var(--mono);font-size:9.5px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--faint);
}
.chain{display:grid;grid-template-columns:repeat(9,1fr);gap:1px;background:var(--line)}
.chain-step{background:var(--panel);padding:16px 14px 18px;position:relative;min-width:0}
.chain-step .n{
  display:block;font-family:var(--mono);font-size:9px;letter-spacing:.12em;
  color:var(--faint);margin-bottom:9px;
}
.chain-step .l{
  display:block;font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:12px;letter-spacing:.02em;line-height:1.2;color:var(--dim);
}
.chain-step.is-gate{background:var(--panel2)}
.chain-step.is-gate .l{color:var(--bone)}
.chain-step .gate{
  display:inline-block;margin-top:8px;
  font-family:var(--mono);font-size:8px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--bone);border:1px solid var(--line2);border-radius:4px;padding:2px 5px;line-height:1;
}

/* limits -> copilot bridge */
.bridge{
  display:flex;gap:20px;align-items:flex-start;
  margin-top:16px;padding:26px 28px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(180deg,var(--panel2),var(--panel));
}
.bridge-mark{
  flex:none;width:16px;height:16px;margin-top:4px;position:relative;
  border:1px solid rgba(52,211,153,.45);border-radius:50%;
}
.bridge-mark::before,.bridge-mark::after{content:'';position:absolute;background:rgba(52,211,153,.7)}
.bridge-mark::before{left:3px;right:3px;top:50%;height:1px}
.bridge-mark::after{top:3px;bottom:3px;left:50%;width:1px}
.bridge h3{margin-bottom:10px}
.bridge p{font-size:15px;max-width:78ch}
.bridge em{font-style:normal;color:var(--bone)}
.bridge a{color:var(--bone);border-bottom:1px solid var(--line2)}
.bridge a:hover{border-bottom-color:rgba(255,255,255,.4)}

/* ---------- 13. steps ----------------------------------------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.step{background:var(--ash);padding:30px 26px 34px;position:relative}
.step .n{
  font-family:var(--numeric);font-weight:900;font-size:40px;letter-spacing:-.05em;
  color:rgba(243,238,231,.14);line-height:1;display:block;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step h3{margin-bottom:9px;font-size:16px}
.step p{font-size:14.5px;line-height:1.6}
.step::after{
  content:'';position:absolute;top:0;left:0;height:1px;width:0;
  background:linear-gradient(90deg,rgba(243,238,231,.35),transparent);
  transition:width var(--t-slow) var(--ease);
}
.step:hover::after{width:100%}

/* ---------- 14. platforms ------------------------------------- */
.plat{
  display:flex;align-items:center;gap:clamp(24px,4vw,56px);flex-wrap:wrap;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--panel);
  padding:clamp(24px,3.5vw,38px);
}
.plat-glyphs{display:flex;align-items:center;gap:26px}
/* glyph source art is pure white on transparent — opacity gives the
   exact --dim / --bone tone against the near-black surface. */
.pgl{
  width:34px;height:34px;flex:none;
  opacity:.55;
  transition:opacity var(--t-base) var(--ease);
}
.plat-glyphs:hover .pgl{opacity:.95}
.plat-copy{flex:1 1 340px;min-width:0}
.plat-copy h3{margin-bottom:8px}
.plat-copy p{font-size:15px}
.plat-rule{width:1px;align-self:stretch;background:var(--line);min-height:52px}

/* ---------- 15. depth / proof --------------------------------- */
.proof{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,4vw,60px);align-items:start}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.stat{background:var(--panel);padding:24px 22px 26px}
.stat .k{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);display:block;margin-bottom:12px}
.stat .num{font-size:clamp(30px,3.4vw,42px)}
.v-pend{
  display:block;
  border:1px dashed rgba(56,189,248,.42);border-radius:var(--r-chip);
  background:repeating-linear-gradient(135deg,rgba(56,189,248,.06) 0 6px,transparent 6px 12px);
}
.stat .v-pend{width:92px;height:clamp(34px,3.6vw,46px)}
.stat small{display:block;margin-top:10px;font-family:var(--mono);font-size:9px;letter-spacing:.12em;color:var(--faint);text-transform:uppercase}

/* ---------- 16. pricing skeleton ------------------------------ */
/* Tier SHAPE is settled (capability-derived, two columns); prices and
   per-tier rows are not — so both render as pending slots. */
.plans{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.plan{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(180deg,var(--panel2),var(--panel));
  padding:30px 28px 32px;
  transition:border-color var(--t-base) var(--ease);
}
.plan:hover{border-color:var(--line2)}
.plan--full{border-color:var(--line2)}
.plan .k{
  display:block;margin-bottom:7px;line-height:1.05;
  font-family:var(--display);font-weight:900;text-transform:uppercase;
  font-size:clamp(19px,2vw,23px);letter-spacing:.005em;color:var(--bone);
}
.plan .plan-when{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--faint);
  padding-bottom:22px;margin-bottom:24px;border-bottom:1px solid var(--line);
}
/* .price / .price-at are kept for when real numbers go in — drop a
   <div class="price"><span class="price-at">…</span></div> above the list */
.plan .price{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.price-at{
  display:inline-block;
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--dim);border:1px solid var(--line2);border-radius:var(--r-chip);
  padding:9px 13px;line-height:1;
}
.plan-rows{display:flex;flex-direction:column;gap:11px}
.plan-rows li{
  position:relative;padding-left:20px;
  font-size:14px;line-height:1.5;color:var(--dim);
}
.plan-rows li::before{
  content:'';position:absolute;left:0;top:10px;
  width:9px;height:1px;background:var(--line2);
}
.plan-rows strong{color:var(--bone)}


/* ---------- 16b. limits ---------------------------------------- */
.limits{grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.limit-cell{
  background:var(--ash);padding:30px 28px 34px;position:relative;
  transition:background var(--t-base) var(--ease);
}
.limit-cell:hover{background:var(--char)}
.limit-cell .no{
  display:block;width:16px;height:16px;margin-bottom:18px;position:relative;
  border:1px solid rgba(239,68,68,.45);border-radius:50%;
}
.limit-cell .no::before{
  content:'';position:absolute;left:3px;right:3px;top:50%;height:1px;
  background:rgba(239,68,68,.65);
}
.limit-cell h3{margin-bottom:11px;color:var(--bone)}
.limit-cell p{font-size:14.5px;line-height:1.62}

/* ---------- 17. faq ------------------------------------------- */
.faq{border-top:1px solid var(--line);max-width:none}
.qa{border-bottom:1px solid var(--line)}
.qa-q{
  width:100%;display:flex;align-items:center;gap:20px;
  padding:24px 4px;text-align:left;
  font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:clamp(15px,1.7vw,19px);letter-spacing:.005em;color:var(--bone);
  transition:color var(--t-fast) var(--ease);
}
.qa-q:hover{color:var(--ember-hi)}
.qa-q .sig{margin-left:auto;flex:none;width:12px;height:12px;position:relative}
.qa-q .sig::before,.qa-q .sig::after{
  content:'';position:absolute;background:var(--dim);transition:transform var(--t-base) var(--ease),background var(--t-fast) var(--ease);
}
.qa-q .sig::before{left:0;right:0;top:5.5px;height:1px}
.qa-q .sig::after{top:0;bottom:0;left:5.5px;width:1px}
.qa[open] .qa-q .sig::after,.qa.is-open .qa-q .sig::after{transform:scaleY(0)}
.qa-a{overflow:hidden;height:0;transition:height var(--t-base) var(--ease)}
.qa-a .inner{padding:0 40px 26px 4px;max-width:92ch}
.qa-a p{font-size:15px;line-height:1.65}
.qa-a p + p{margin-top:10px}

/* ---------- 17b. long-form documents (terms, privacy) --------- */
.doc-split{
  display:grid;grid-template-columns:196px minmax(0,1fr);
  gap:clamp(32px,5vw,72px);align-items:start;
}
.doc-toc{position:sticky;top:calc(var(--nav-h) + 28px)}
.doc-toc-h{
  display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--faint);margin-bottom:14px;
}
.doc-toc a{
  display:block;padding:8px 0 8px 14px;
  border-left:1px solid var(--line);
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--faint);
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.doc-toc a:hover{color:var(--dim);border-left-color:var(--line2)}
/* current clause marked in bone, not gold — the nav already spends the
   one accent on this screen */
.doc-toc a.is-here{color:var(--bone);border-left-color:var(--bone)}

.doc-body{max-width:74ch}
.doc-clause{padding-block:clamp(26px,3vw,34px);border-top:1px solid var(--line)}
.doc-clause:first-child{border-top:0;padding-top:0}
.doc-h{display:flex;gap:14px;align-items:baseline;margin-bottom:14px}
.doc-h .n{
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;
  color:var(--faint);flex:none;
}
.doc-h .t{
  font-family:var(--display);font-weight:800;text-transform:uppercase;
  font-size:17px;letter-spacing:.015em;line-height:1.2;color:var(--bone);
}
.doc-body p{font-size:15.5px;line-height:1.72;color:var(--dim)}
.doc-body p + p{margin-top:12px}
.doc-body ul + p{margin-top:14px}
.doc-body ul{margin-top:13px;display:flex;flex-direction:column;gap:9px}
.doc-body li{
  position:relative;padding-left:20px;
  font-size:15px;line-height:1.65;color:var(--dim);
}
.doc-body li::before{
  content:'';position:absolute;left:0;top:11px;
  width:9px;height:1px;background:var(--line2);
}
.doc-body strong{color:var(--bone)}
.doc-body a{color:var(--bone);border-bottom:1px solid var(--line2)}
.doc-body a:hover{border-bottom-color:rgba(255,255,255,.4)}
.doc-meta{
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--faint);
}
.doc-lede{font-size:17px;line-height:1.65;color:var(--bone);max-width:64ch}

/* ---------- 18. closing cta ----------------------------------- */
.close{
  position:relative;overflow:hidden;
  border:1px solid var(--line2);
  border-radius:var(--r-card);
  background:linear-gradient(180deg,var(--panel2) 0%,var(--steel-lo) 100%);
  padding:clamp(38px,6vw,72px) clamp(24px,4vw,64px);
  text-align:center;
}
.close::before{
  content:'';position:absolute;left:50%;top:-1px;transform:translateX(-50%);
  width:min(420px,70%);height:1px;background:var(--gold-grad);opacity:.55;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 30%,#000 70%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 30%,#000 70%,transparent);
}
.close h2{margin-block:18px 16px;max-width:18ch;margin-inline:auto}
.close .lead{margin-inline:auto;text-align:center;max-width:52ch}
.close .hero-actions{justify-content:center}

/* ---------- 19. footer ---------------------------------------- */
.foot{border-top:1px solid var(--line);padding-block:52px 44px;margin-top:clamp(72px,9vw,120px)}
.foot-top{display:flex;gap:48px;flex-wrap:wrap;justify-content:space-between;padding-bottom:38px;border-bottom:1px solid var(--line)}
.foot-brand{max-width:300px}
.foot-brand p{font-size:14px;margin-top:16px}
.foot-cols{display:flex;gap:clamp(32px,6vw,80px);flex-wrap:wrap}
.foot-col h4{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);font-weight:500;margin-bottom:16px;
}
.foot-col a{display:block;font-size:14px;color:var(--dim);padding-block:5px;transition:color var(--t-fast) var(--ease)}
.foot-col a:hover{color:var(--bone)}
.foot-bottom{display:flex;gap:24px;flex-wrap:wrap;justify-content:space-between;padding-top:26px}
.legal{font-family:var(--mono);font-size:9.5px;line-height:1.9;letter-spacing:.05em;color:var(--faint);max-width:78ch}
.foot-meta{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);white-space:nowrap}

/* ---------- 20. reveal ---------------------------------------- */
.rv{opacity:0;transform:translateY(12px);transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease)}
.rv.in{opacity:1;transform:none}

/* ---------- 21. grain ----------------------------------------- */
.grain{
  position:fixed;inset:0;z-index:200;pointer-events:none;opacity:.032;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='140' height='140' filter='url(%23n)'/></svg>");
  mix-blend-mode:overlay;
}

/* ---------- 22. responsive ------------------------------------ */
/* tablet: two-up modules and single-column splits, well before the
   tiles get too narrow to read */
@media (max-width:1100px){
  .modules{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rack-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tile--w2{grid-column:span 2}
  .copilot-split{grid-template-columns:1fr}
  .ai-split{grid-template-columns:1fr}
  .chain{grid-template-columns:repeat(3,1fr)}
  .term-body{min-height:0}
  .pull{max-width:46ch}
}

@media (max-width:1000px){
  .nav-links{gap:16px}
  /* stack the contents list above the document */
  .doc-split{grid-template-columns:1fr;gap:30px}
  .doc-toc{position:static}
  .doc-toc ol{display:flex;flex-wrap:wrap;gap:0 8px}
  .doc-toc a{border-left:0;border-bottom:1px solid var(--line);padding:7px 0}
  .doc-toc a.is-here{border-left:0;border-bottom-color:var(--bone)}
  .doc-body{max-width:none}
  .nav-links a{font-size:9.5px}
  .hero-inner{grid-template-columns:1fr}
  .hero-mark{order:-1;width:132px}
  .modules{grid-template-columns:repeat(2,1fr)}
  .tile--wide{grid-column:1/-1}
  .steps{grid-template-columns:repeat(2,1fr)}
  .ai-split{grid-template-columns:1fr}
  .proof{grid-template-columns:1fr}
  .grind{grid-template-columns:repeat(2,1fr)}
  .limits{grid-template-columns:1fr}
  .origin-grid{grid-template-columns:1.25fr 1fr}
  .readout-row{grid-template-columns:repeat(2,1fr)}
  .readout-cell:nth-child(3){border-left:0}
  .readout-cell:nth-child(n+3){border-top:1px solid var(--line)}
  .plans{grid-template-columns:1fr}
}
@media (max-width:760px){
  :root{--gutter:18px}
  /* narrow screens: hold the field back behind the copy vertically,
     since there's no side column to push it into */
  #field{
    -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.5) 26%,rgba(0,0,0,.32) 62%,rgba(0,0,0,.45) 100%);
    mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.5) 26%,rgba(0,0,0,.32) 62%,rgba(0,0,0,.45) 100%);
  }
  .nav-links,.nav-cta .btn{display:none}
  .nav-toggle{display:flex}
  .nav.is-open .nav-links{
    display:flex;flex-direction:column;align-items:flex-start;gap:0;
    position:fixed;left:0;right:0;top:var(--nav-h);
    background:rgba(10,9,8,.97);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);padding:8px var(--gutter) 20px;margin:0;
  }
  .nav.is-open .nav-links a{padding-block:14px;width:100%;border-bottom:1px solid var(--line);font-size:12px}
  .nav.is-open .nav-links a::after{display:none}
  .grind{grid-template-columns:1fr}
  .grid.grid--2{grid-template-columns:1fr}
  .limits{grid-template-columns:1fr}
  /* stack the ledger; rule between PAIRS, not between the two halves */
  .origin-grid{grid-template-columns:1fr;gap:0;background:transparent}
  .origin-h{display:none}
  .origin-grid .was{padding-bottom:12px;border-top:1px solid var(--line)}
  .origin-grid .was:first-of-type{border-top:0}
  .origin-grid .now{padding-top:0;padding-bottom:24px}
  .origin-grid .now::before{display:none}
  .modules{grid-template-columns:1fr}
  .rack-grid{grid-template-columns:1fr}
  .rack-head{padding:20px 20px 18px}
  .rack-cell{padding:20px}
  .tile--wide,.tile--w2{grid-column:span 1}
  .chain{grid-template-columns:1fr}
  .bridge{flex-direction:column;gap:14px}
  .cp-you{margin-left:0;width:100%}
  .steps{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .readout-row{grid-template-columns:1fr}
  .readout-cell{border-left:0;border-top:1px solid var(--line)}
  .readout-cell:first-child{border-top:0}
  .qa-a .inner{padding-right:8px}
  .plat-rule{display:none}
  .term-line{flex-direction:column;gap:2px}
  .term-line .who{width:auto}
}

/* ---------- 23. reduced motion -------------------------------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none}
  .caret{animation:none}
}