/* ==========================================================================
   SPARK LOGIC — "The Engagement" design system
   Concept: the site reads as a numbered engagement document from a top-tier
   firm. Authoritative display voice (Archivo) + grotesk clarity (Hanken)
   + mono rigour (Space Mono). Brand: carbon #1C1D1F · steel #595959 ·
   amber #F6B448 · porcelain #FBFAF7. Amber is spent sparingly — it is
   the spark, not the wallpaper.
   ========================================================================== */

:root {
  --carbon:    #1C1D1F;
  --carbon-2:  #26272A;
  --steel:     #595959;
  --steel-2:   #8A8A88;
  --amber:     #F6B448;
  --amber-2:   #E09E28;
  --porcelain: #FBFAF7;
  --white:     #FFFFFF;
  --mist:      #E9E6DF;
  --mist-dark: rgba(255,255,255,0.14);
  --on-carbon: #F4F2EC;
  --on-carbon-dim: #A8A7A2;

  --serif: "Archivo", "Hanken Grotesk", sans-serif;
  --sans:  "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
  --mono:  "Space Mono", ui-monospace, monospace;

  --t-xs:  clamp(0.72rem, 0.7rem + 0.1vw, 0.78rem);
  --t-sm:  clamp(0.88rem, 0.85rem + 0.15vw, 0.95rem);
  --t-md:  clamp(1.02rem, 0.98rem + 0.2vw, 1.12rem);
  --t-lg:  clamp(1.25rem, 1.1rem + 0.7vw, 1.6rem);
  --t-xl:  clamp(1.8rem, 1.4rem + 1.8vw, 2.8rem);
  --t-2xl: clamp(2.4rem, 1.7rem + 3.2vw, 4.2rem);
  --t-hero:clamp(2.7rem, 1.6rem + 5.4vw, 5.9rem);
  --t-vast:clamp(3rem, 1.2rem + 8.6vw, 8.6rem);

  --wrap: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --sect: clamp(4.5rem, 10vw, 9rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: var(--t-md);
  font-weight: 400;
  line-height: 1.65;
  color: var(--carbon);
  background: var(--porcelain);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,h2,h3,h4 { margin: 0; font-weight: 400; }
p { margin: 0 0 1.1rem; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--amber); color: var(--carbon); }

.wrap { width: min(100% - 2*var(--gutter), var(--wrap)); margin-inline: auto; }

/* ---- typography roles ------------------------------------------------- */
.display {
  font-family: var(--serif);
  font-weight: 680;
  font-stretch: 96%;
  letter-spacing: -0.022em;
  line-height: 1.03;
}
.chapter-label {
  font-family: var(--mono);
  font-size: var(--t-xs);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--steel);
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.chapter-label .no { color: var(--amber-2); letter-spacing: 0.1em; white-space: nowrap; }
.chapter-label::after { content: ""; flex: 1; height: 1px; background: var(--mist); transform: translateY(-4px); }
.dark .chapter-label { color: var(--on-carbon-dim); }
.dark .chapter-label::after { background: var(--mist-dark); }

.lede { font-size: var(--t-lg); line-height: 1.5; font-weight: 300; color: var(--steel); max-width: 30em; }

/* ---- header ------------------------------------------------------------ */
.masthead {
  position: fixed; inset: 0 0 auto 0; z-index: 90;
  transition: background .35s ease, box-shadow .35s ease;
}
.masthead.scrolled { background: rgba(251,250,247,0.92); backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--mist); }
.masthead-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; }
.brand img { width: 24px; height: auto; }
.brand span { font-family: var(--sans); font-weight: 800; letter-spacing: -0.015em; font-size: 1.12rem; color: #585858; }
.brand span i { font-style: normal; font-weight: 800; }
.brand--inverse span { color: var(--on-carbon); }
.mast-nav { display: flex; gap: 2.1rem; align-items: center; }
.mast-nav a {
  font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .14em; text-transform: uppercase;
  color: var(--steel); text-decoration: none; position: relative; padding: .3rem 0;
}
.mast-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--amber-2); transform: scaleX(0); transform-origin: right; transition: transform .35s cubic-bezier(.7,0,.2,1);
}
.mast-nav a:hover { color: var(--carbon); }
.mast-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.mast-cta {
  font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .12em; text-transform: uppercase;
  color: var(--carbon); text-decoration: none; border: 1px solid var(--carbon);
  padding: .68rem 1.25rem; border-radius: 999px; transition: background .25s ease, color .25s ease;
  white-space: nowrap;
}
.mast-cta:hover { background: var(--carbon); color: var(--porcelain); }
.menu-btn { display: none; }

/* ---- hero -------------------------------------------------------------- */
.hero { min-height: 100svh; display: flex; align-items: center; position: relative; overflow: hidden; padding-top: 76px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.hero .chapter-label { margin-bottom: 2.2rem; }
.hero h1 { font-size: var(--t-hero); max-width: 12ch; }
.hero h1 .line { display: block; overflow: hidden; }
.hero h1 .line > span { display: inline-block; transform: translateY(110%); animation: riseUp 1s cubic-bezier(.2,.7,.2,1) forwards; }
.hero h1 .line:nth-child(2) > span { animation-delay: .12s; }
.hero h1 .line:nth-child(3) > span { animation-delay: .24s; }
.hero h1 em { font-style: normal; color: var(--amber-2); }
@keyframes riseUp { to { transform: translateY(0); } }
.hero .lede { margin-top: 2rem; opacity: 0; animation: fadeIn .9s ease .55s forwards; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2.6rem; opacity: 0; animation: fadeIn .9s ease .75s forwards; }
@keyframes fadeIn { to { opacity: 1; } }

.btn {
  font-family: var(--mono); font-size: var(--t-sm); letter-spacing: .06em;
  text-decoration: none; border-radius: 999px; padding: .95rem 1.7rem;
  display: inline-flex; align-items: center; gap: .6rem; cursor: pointer;
  border: 1px solid var(--carbon); transition: all .28s ease;
}
.btn-solid { background: var(--carbon); color: var(--porcelain); }
.btn-solid:hover { background: transparent; color: var(--carbon); }
.btn-amber { background: var(--amber); border-color: var(--amber); color: var(--carbon); }
.btn-amber:hover { background: var(--amber-2); border-color: var(--amber-2); }
.btn-line { background: transparent; color: var(--carbon); }
.btn-line:hover { background: var(--carbon); color: var(--porcelain); }
.dark .btn-line { color: var(--on-carbon); border-color: var(--mist-dark); }
.dark .btn-line:hover { background: var(--on-carbon); color: var(--carbon); border-color: var(--on-carbon); }

/* hero texture: faint engineering dot-grid + film grain ----------------- */
.mesh { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.hero .wrap { position: relative; z-index: 2; }
.hero .scroll-cue { z-index: 2; }
.mantra-lines, .mantra-footnote { position: relative; z-index: 2; }
.grain { position: absolute; inset: 0; pointer-events: none; z-index: 1; opacity: .05; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E"); }
.dark .grain, .mantra .grain { mix-blend-mode: screen; opacity: .06; }

/* the bulb ignition — brand moment ------------------------------------- */
.ignition { position: relative; display: grid; place-items: center; }
.ignition svg { width: min(78%, 340px); height: auto; overflow: visible; }
.ig-glass { stroke: var(--carbon); opacity: .82; stroke-width: 5.5; fill: none; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 560; stroke-dashoffset: 560; animation: draw 2s cubic-bezier(.5,0,.15,1) .35s forwards; }
.ig-bolt { fill: var(--amber); transform-origin: 50px 57px; opacity: 0; transform: scale(.55);
  animation: strike .55s cubic-bezier(.2,1.4,.3,1) 2.15s forwards; }
.ig-glow { fill: var(--amber); opacity: 0; transform-origin: 50px 57px;
  animation: glow 1.4s ease-out 2.2s forwards; }
.ig-line { stroke: var(--amber); stroke-width: 5.5; stroke-linecap: round;
  stroke-dasharray: 40; stroke-dashoffset: 40; }
.ig-line.l1 { animation: draw .45s ease-out 2.62s forwards; }
.ig-line.l2 { animation: draw .45s ease-out 2.78s forwards; }
.ig-line.l3 { animation: draw .45s ease-out 2.94s forwards; }
.ig-cap { font-family: var(--mono); font-size: 9.5px; letter-spacing: .3em; fill: var(--steel-2);
  opacity: 0; animation: fadeIn .9s ease 3.3s forwards; }
@keyframes strike { 0% { opacity: 0; transform: scale(.55); } 60% { opacity: 1; transform: scale(1.12); } 100% { opacity: 1; transform: scale(1); } }
@keyframes glow { 0% { opacity: 0; transform: scale(.4); } 25% { opacity: .32; } 100% { opacity: 0; transform: scale(2.1); } }

/* sector ticker --------------------------------------------------------- */
.ticker { border-top: 1px solid var(--mist); border-bottom: 1px solid var(--mist); background: var(--white);
  overflow: hidden; white-space: nowrap; position: relative; }
.ticker-track { display: inline-flex; gap: 0; padding: .95rem 0; animation: tick 36s linear infinite; will-change: transform; }
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker span { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .34em; text-transform: uppercase; color: var(--steel); padding: 0 1.6rem; }
.ticker b { color: var(--amber-2); font-weight: 400; }
@keyframes tick { to { transform: translateX(-50%); } }

/* spark rule — the three base lines as a divider motif ------------------- */
.spark-rule { display: grid; gap: 5px; margin: 1.8rem 0; width: 64px; }
.spark-rule i { display: block; height: 3px; background: var(--amber); border-radius: 99px; }
.spark-rule i:nth-child(2) { width: 72%; }
.spark-rule i:nth-child(3) { width: 44%; }

/* (retired) hero schematic ---------------------------------------------- */
.schematic { position: relative; }
.schematic svg { width: 100%; height: auto; }
.schematic .path { stroke: var(--carbon); stroke-width: 1.4; fill: none; opacity: .28;
  stroke-dasharray: 1600; stroke-dashoffset: 1600; animation: draw 3.2s cubic-bezier(.4,0,.2,1) .4s forwards; }
.schematic .path-amber { stroke: var(--amber-2); stroke-width: 2; fill: none;
  stroke-dasharray: 1600; stroke-dashoffset: 1600; animation: draw 3.2s cubic-bezier(.4,0,.2,1) .9s forwards; }
.schematic .jn { fill: var(--porcelain); stroke: var(--carbon); stroke-width: 1.3; opacity: 0; animation: fadeIn .5s ease forwards; }
.schematic .jn.a { animation-delay: 1.4s; } .schematic .jn.b { animation-delay: 1.9s; }
.schematic .jn.c { animation-delay: 2.4s; } .schematic .jn.d { animation-delay: 2.9s; }
.schematic .jn-amber { fill: var(--amber); stroke: var(--carbon); stroke-width: 1.3; opacity: 0; animation: fadeIn .5s ease 3.3s forwards; }
.schematic .cap { font-family: var(--mono); font-size: 9.5px; letter-spacing: .22em; fill: var(--steel-2); opacity: 0; animation: fadeIn .8s ease 3.5s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* scroll cue */
.scroll-cue { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .3em; color: var(--steel-2);
  text-transform: uppercase; opacity: 0; animation: fadeIn 1s ease 1.6s forwards; }
.scroll-cue::after { content: ""; display: block; width: 1px; height: 34px; background: var(--steel-2); margin: .7rem auto 0; animation: cueDrop 2.2s ease-in-out infinite; transform-origin: top; }
@keyframes cueDrop { 0%,100% { transform: scaleY(.35); opacity:.4 } 50% { transform: scaleY(1); opacity:1 } }

/* ---- generic section spacing ------------------------------------------ */
.section { padding: var(--sect) 0; }
.section-head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head h2 { font-size: var(--t-2xl); max-width: 18ch; margin-top: 1.6rem; }
.dark { background: var(--carbon); color: var(--on-carbon); }
.dark h2, .dark h3 { color: var(--on-carbon); }

/* ---- chapter 01 · the firm -------------------------------------------- */
.firm-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: clamp(2rem,6vw,6rem); align-items: start; }
.firm-statement { font-family: var(--serif); font-weight: 540; font-stretch: 97%;
  font-size: var(--t-xl); line-height: 1.3; letter-spacing: -0.015em; max-width: 22ch; }
.firm-statement strong { font-weight: 560; color: var(--carbon); }
.firm-copy p { color: var(--steel); }
.firm-copy .sig { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .2em; text-transform: uppercase; color: var(--steel-2); margin-top: 2rem; }
.rule-amber { width: 52px; height: 3px; background: var(--amber); margin: 1.8rem 0; }
.firm-statement em { font-style: normal; font-weight: 700; color: var(--amber-2); }

/* ---- mantra interlude — THE signature ---------------------------------- */
.mantra {
  min-height: 100svh; display: grid; place-content: center;
  background: radial-gradient(ellipse 90% 70% at 50% 42%, var(--carbon-2), var(--carbon) 70%);
  color: var(--on-carbon); overflow: hidden; position: relative;
}
.mantra-lines { display: grid; gap: clamp(.4rem, 1.2vw, 1rem); padding: var(--sect) var(--gutter); }
.m-line { font-family: var(--serif); font-weight: 760; font-stretch: 98%;
  font-size: var(--t-vast); line-height: .98; letter-spacing: -0.026em; position: relative; }
.m-line .mask { display: block; overflow: hidden; }
.m-line .mask > span { display: inline-block; transform: translateY(112%); transition: transform 1.05s cubic-bezier(.16,.84,.28,1); }
.m-line.in .mask > span { transform: translateY(0); }
.m-line:nth-child(2) .mask > span { transition-delay: .14s; }
.m-line:nth-child(3) .mask > span { transition-delay: .28s; }
.m-line:nth-child(3) { color: var(--amber); }
.m-line .stop { color: var(--amber); }
.m-line:nth-child(3) .stop { color: var(--on-carbon); }
.mantra-footnote { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .3em; text-transform: uppercase;
  color: var(--on-carbon-dim); padding: 0 var(--gutter) 3rem; text-align: left; max-width: var(--wrap); margin-inline: auto; width: 100%; }

/* ---- chapter 02 · capabilities (editorial index rows) ------------------ */
.cap-rows { border-top: 1px solid var(--mist); }
.cap-row {
  display: grid; grid-template-columns: 88px minmax(0,.85fr) minmax(0,1.15fr);
  gap: clamp(1rem, 3vw, 3rem); padding: 2.1rem 0; border-bottom: 1px solid var(--mist);
  position: relative; transition: background .3s ease;
}
.cap-row::before { content: ""; position: absolute; left: 0; top: -1px; height: 1px; width: 0;
  background: var(--amber-2); transition: width .5s cubic-bezier(.7,0,.2,1); }
.cap-row:hover::before { width: 100%; }
.cap-row .idx { font-family: var(--mono); font-size: var(--t-sm); color: var(--steel-2); padding-top: .35rem; }
.cap-row h3 { font-family: var(--serif); font-size: var(--t-lg); font-weight: 640; font-stretch: 97%; letter-spacing: -0.012em; }
.cap-row p { color: var(--steel); margin: 0; max-width: 52ch; }

/* ---- chapter 03 · method ----------------------------------------------- */
.method { background: var(--white); border-top: 1px solid var(--mist); border-bottom: 1px solid var(--mist); }
.method-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.5rem, 4vw, 4rem); counter-reset: step; }
.method-col { position: relative; padding-top: 2.2rem; }
.method-col::before { counter-increment: step; content: counter(step, decimal-leading-zero);
  font-family: var(--mono); font-size: var(--t-sm); letter-spacing: .18em; color: var(--amber-2);
  position: absolute; top: 0; left: 0; }
.method-col h3 { font-family: var(--serif); font-size: var(--t-xl); font-weight: 680; font-stretch: 96%; letter-spacing: -0.018em; margin-bottom: 1rem; }
.method-col p { color: var(--steel); font-size: var(--t-md); }
.method-note { margin-top: clamp(2.5rem,5vw,4rem); padding-top: 2rem; border-top: 1px solid var(--mist);
  font-family: var(--serif); font-weight: 520; font-stretch: 98%;
  font-size: var(--t-lg); color: var(--steel); max-width: 44ch; }
.method-note b { color: var(--amber-2); font-weight: 640; }

/* ---- chapter 04 · experience (anonymised ledger) ----------------------- */
.ledger { border-top: 1px solid var(--mist-dark); }
.ledger-row { display: grid; grid-template-columns: minmax(0,.42fr) minmax(0,1fr) minmax(0,.9fr);
  gap: clamp(1rem,3vw,3rem); padding: 2rem 0; border-bottom: 1px solid var(--mist-dark); align-items: baseline; }
.ledger-row .sector { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .2em; text-transform: uppercase; color: var(--amber); }
.ledger-row .who { font-family: var(--serif); font-size: var(--t-lg); font-weight: 600; font-stretch: 97%; color: var(--on-carbon); letter-spacing: -0.012em; }
.ledger-row .what { color: var(--on-carbon-dim); font-size: var(--t-sm); margin: 0; }
.ledger-note { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .18em; text-transform: uppercase; color: var(--on-carbon-dim); margin-top: 1.6rem; }

/* ---- case studies ------------------------------------------------------ */
.cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1.2rem,3vw,2.4rem); }
.case-tile { display: block; text-decoration: none; border: 1px solid var(--mist); background: var(--white);
  padding: clamp(1.6rem,3.5vw,2.6rem); transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease; position: relative; overflow: hidden; }
.case-tile::after { content: "→"; position: absolute; right: 1.6rem; bottom: 1.4rem;
  font-family: var(--mono); color: var(--amber-2); transform: translateX(-8px); opacity: 0; transition: all .3s ease; }
.case-tile:hover { border-color: var(--carbon); transform: translateY(-4px); box-shadow: 0 24px 48px -32px rgba(28,29,31,.35); }
.case-tile:hover::after { transform: none; opacity: 1; }
.case-tile .ghost { position: absolute; right: -26px; top: -30px; width: 150px; height: auto; opacity: 0;
  transform: rotate(10deg) translateY(8px); transition: opacity .45s ease, transform .45s ease; pointer-events: none; }
.case-tile:hover .ghost { opacity: .1; transform: rotate(10deg) translateY(0); }
.case-tile .sector { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .2em; text-transform: uppercase; color: var(--amber-2); }
.case-tile h3 { font-family: var(--serif); font-size: var(--t-xl); font-weight: 660; font-stretch: 96%; letter-spacing: -0.018em; margin: 1rem 0 .8rem; max-width: 17ch; }
.case-tile p { color: var(--steel); margin: 0; max-width: 44ch; }
.case-tile .meta { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .14em; text-transform: uppercase; color: var(--steel-2); margin-top: 1.6rem; }

/* ---- contact ----------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: clamp(2rem,6vw,6rem); }
.contact h2 { font-size: var(--t-2xl); }
.contact .lede { color: var(--on-carbon-dim); }
.contact-info { margin-top: 2.4rem; display: grid; gap: .7rem; }
.contact-info a { font-family: var(--mono); font-size: var(--t-sm); color: var(--on-carbon);
  text-decoration: none; border-bottom: 1px solid var(--mist-dark); width: fit-content; padding-bottom: .15rem; transition: border-color .25s ease, color .25s ease; }
.contact-info a:hover { color: var(--amber); border-color: var(--amber); }
form { display: grid; gap: 1.35rem; }
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 1.35rem; }
.field label { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .18em; text-transform: uppercase; color: var(--on-carbon-dim); display: block; margin-bottom: .55rem; }
.field input, .field textarea {
  width: 100%; background: transparent; border: 0; border-bottom: 1px solid var(--mist-dark);
  color: var(--on-carbon); font-family: var(--sans); font-size: var(--t-md); padding: .55rem 0 .8rem;
  transition: border-color .25s ease;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--amber); }
.field textarea { resize: vertical; min-height: 110px; }
form .btn { justify-self: start; margin-top: .4rem; }

/* ---- footer ------------------------------------------------------------ */
.footer { background: var(--carbon); color: var(--on-carbon-dim); border-top: 1px solid var(--mist-dark); padding: 3.2rem 0 2.4rem; }
.footer-grid { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; flex-wrap: wrap; }
.footer-brandline { display: flex; align-items: center; gap: .8rem; margin-bottom: 1.1rem; }
.footer-brandline img { width: 22px; }
.footer-brandline span { font-family: var(--sans); font-weight: 800; font-size: 1.06rem; color: var(--on-carbon); letter-spacing: -0.01em; }
.footer .mantra-min { font-family: var(--serif); font-weight: 600; font-stretch: 97%; font-size: var(--t-lg); color: var(--on-carbon); letter-spacing: -0.012em; }
.footer .mantra-min b { color: var(--amber); font-weight: 700; }
.footer-legal { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .12em; }

/* ---- reveal on scroll --------------------------------------------------- */
.rv { opacity: 0; transform: translateY(26px); transition: opacity .8s cubic-bezier(.2,.6,.2,1), transform .8s cubic-bezier(.2,.6,.2,1); }
.rv.in { opacity: 1; transform: none; }
.rv-d1 { transition-delay: .08s; } .rv-d2 { transition-delay: .16s; } .rv-d3 { transition-delay: .24s; }

/* ---- article pages ------------------------------------------------------ */
.article-hero { background: var(--carbon); color: var(--on-carbon); padding: calc(76px + 4rem) 0 4rem; }
.article-hero .sector { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .24em; text-transform: uppercase; color: var(--amber); }
.article-hero h1 { font-size: var(--t-2xl); max-width: 18ch; margin: 1.4rem 0; }
.article-hero .meta { display: flex; gap: 2rem; flex-wrap: wrap; font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--on-carbon-dim); }
.article-body { max-width: 68ch; margin-inline: auto; padding: var(--sect) 0; }
.article-body h2 { font-family: var(--serif); font-size: var(--t-xl); font-weight: 660; font-stretch: 96%; margin: 2.4rem 0 1rem; letter-spacing: -0.018em; }
.article-body p, .article-body li { color: #3A3A38; }
.article-body ul { list-style: none; padding-left: 0; }
.article-body ul li { position: relative; padding-left: 1.7rem; margin-bottom: .65rem; }
.article-body ul li::before { content: ""; position: absolute; left: 0; top: .32em; width: .95em; height: .95em;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M13.5 2 5 15h5.2L8 22 L 19 9h-5.4L17 2Z' fill='%23E09E28'/%3E%3C/svg%3E") center/contain no-repeat; }
.results { display: grid; grid-template-columns: repeat(3,1fr); border: 1px solid var(--mist); background: var(--white); margin: 2.2rem 0; }
.results > div { padding: 1.6rem; border-right: 1px solid var(--mist); }
.results > div:last-child { border-right: 0; }
.results .r-num { font-family: var(--serif); font-size: var(--t-xl); font-weight: 700; letter-spacing: -0.02em; }
.results .r-num em { font-style: normal; color: var(--amber-2); }
.results .r-cap { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--steel); margin-top: .4rem; }
.backlink { font-family: var(--mono); font-size: var(--t-xs); letter-spacing: .18em; text-transform: uppercase; color: var(--steel); text-decoration: none; }
.backlink:hover { color: var(--carbon); }

/* ---- a11y / responsive -------------------------------------------------- */
:focus-visible { outline: 2px solid var(--amber-2); outline-offset: 3px; }
.skip { position: absolute; left: -999px; background: var(--amber); color: var(--carbon); font-family: var(--mono); padding: .6rem 1rem; z-index: 200; }
.skip:focus { left: .6rem; top: .6rem; }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .ignition { order: -1; margin-bottom: .5rem; }
  .ignition svg { width: min(46%, 190px); }
  .firm-grid, .contact-grid { grid-template-columns: 1fr; }
  .method-cols { grid-template-columns: 1fr; gap: 2.4rem; }
  .cap-row { grid-template-columns: 56px 1fr; }
  .cap-row p { grid-column: 2; }
  .ledger-row { grid-template-columns: 1fr; gap: .35rem; }
  .cases-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .mast-nav { display: none; }
  .frow { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero h1 .line > span, .hero .lede, .hero-actions,
  .ig-glass, .ig-bolt, .ig-line, .ig-cap, .scroll-cue { animation: none; transform: none; opacity: 1; stroke-dashoffset: 0; }
  .ig-glow { animation: none; opacity: 0; }
  .ticker-track { animation: none; transform: none; }
  .m-line .mask > span { transform: none; transition: none; }
  .rv { opacity: 1; transform: none; transition: none; }
  .scroll-cue::after { animation: none; }
}