/* =========================================================
   SiliCoded v2 — "Copper Circuit"
   ========================================================= */

/* ---------- Fonts (self-hosted) ---------- */
@font-face { font-family: "Archivo"; src: url("../fonts/archivo-latin-wdth-normal.woff2") format("woff2-variations"), url("../fonts/archivo-latin-wdth-normal.woff2") format("woff2"); font-weight: 100 900; font-stretch: 62% 125%; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }

/* ---------- Tokens ---------- */
:root {
  --indigo: #1B1F3B;
  --indigo-2: #252A4E;      /* raised surfaces on indigo */
  --indigo-3: #343A66;      /* lines on indigo */
  --copper: #C8763A;        /* traces, fills, large accents */
  --copper-deep: #9A5222;   /* copper text / links on light (5.4:1) */
  --copper-light: #E39A5F;  /* copper text on indigo (6.9:1) */
  --paper: #F7F7F5;
  --stone: #E9E4DC;
  --stone-line: #D8D1C6;
  --slate: #5A6275;
  --mist: #B8BDD0;          /* body text on indigo */
  --white: #FFFFFF;

  --display: "Archivo", "Arial Narrow", system-ui, sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* type scale: 1.25 ratio, fluid at the top end */
  --t-sm: 0.875rem;
  --t-base: 1.0625rem;
  --t-md: 1.25rem;
  --t-lg: 1.5625rem;
  --t-xl: clamp(1.75rem, 1.2rem + 2vw, 2.6rem);
  --t-2xl: clamp(2.4rem, 1.4rem + 4vw, 4.4rem);

  --wrap: 1240px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --band: clamp(4.5rem, 9vw, 8rem);
  --r: 4px;               /* small radius: chips, inputs, buttons */
  --r-card: 10px;         /* cards */
  --bar-h: 78px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--bar-h) + 1rem); }
body { margin: 0; background: var(--paper); color: var(--indigo); font: 400 var(--t-base)/1.6 var(--body); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3 { font-family: var(--display); font-stretch: 112%; font-weight: 700; line-height: 1.08; letter-spacing: -0.015em; margin: 0 0 0.5em; color: inherit; }
h1 { font-size: var(--t-2xl); letter-spacing: -0.025em; }
h2 { font-size: var(--t-xl); }
h3 { font-size: var(--t-md); font-weight: 650; line-height: 1.2; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
address { font-style: normal; }
a { color: var(--copper-deep); }
:focus-visible { outline: 3px solid var(--copper); outline-offset: 3px; }
main:focus { outline: none; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 1rem; top: -100px; z-index: 100; background: var(--indigo); color: var(--white); padding: .6rem 1rem; border-radius: var(--r); }
.skip-link:focus { top: 1rem; }
.icon { width: 1.25rem; height: 1.25rem; flex: none; }

/* ---------- Buttons & links ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 50px; padding: .75rem 1.5rem;
  font: 650 1rem/1.1 var(--display); font-stretch: 108%;
  text-decoration: none; border: 2px solid transparent; border-radius: var(--r); cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn--copper { background: var(--copper); color: var(--indigo); }
.btn--copper:hover { background: var(--copper-light); color: var(--indigo); }
.btn--indigo { background: var(--indigo); color: var(--white); }
.btn--indigo:hover { background: var(--indigo-3); color: var(--white); }
.btn--line-light { border-color: rgba(255,255,255,.4); color: var(--white); }
.btn--line-light:hover { border-color: var(--copper-light); color: var(--copper-light); }

.link { display: inline-flex; align-items: center; gap: .45rem; font-weight: 600; color: var(--copper-deep); text-decoration: none; }
.link .icon { width: 1.1rem; height: 1.1rem; transition: transform .15s; }
.link:hover { text-decoration: underline; text-underline-offset: .2em; }
.link:hover .icon { transform: translateX(3px); }

/* ---------- Masthead ---------- */
.masthead { position: sticky; top: 0; z-index: 50; background: var(--paper); border-bottom: 1px solid var(--stone-line); }
.masthead__bar { display: flex; align-items: center; justify-content: space-between; gap: 2rem; min-height: var(--bar-h); }
.masthead__logo img { height: 50px; width: auto; }

.nav { display: flex; align-items: center; gap: 1.5rem; }
.nav__list { display: flex; gap: .25rem; }
.nav__item { position: relative; }
.nav__link {
  display: inline-flex; align-items: center; gap: .3rem; padding: .6rem .8rem;
  background: none; border: 0; cursor: pointer; color: var(--indigo); text-decoration: none;
  font: 550 .98rem/1 var(--display); font-stretch: 106%; border-radius: var(--r);
}
.nav__link:hover { background: var(--stone); }
.nav__link.is-current { box-shadow: inset 0 -2px 0 var(--copper); border-radius: 0; }
.nav__chev { width: 1rem; height: 1rem; transition: transform .15s; }
[aria-expanded="true"] > .nav__chev { transform: rotate(180deg); }

.panel {
  display: none; position: absolute; top: calc(100% + 12px); left: -.5rem; width: 360px;
  background: var(--white); border: 1px solid var(--stone-line); border-top: 3px solid var(--copper);
  border-radius: 0 0 var(--r-card) var(--r-card); padding: .5rem;
  box-shadow: 0 24px 48px -20px rgba(27,31,59,.35);
}
.panel.is-open { display: block; }
.panel__link { display: block; padding: .75rem .85rem; border-radius: var(--r); text-decoration: none; }
.panel__link:hover, .panel__link[aria-current="page"] { background: var(--paper); }
.panel__label { display: block; font: 650 1rem/1.25 var(--display); font-stretch: 106%; color: var(--indigo); }
.panel__desc { display: block; font-size: var(--t-sm); color: var(--slate); margin-top: .15rem; }

.menu-btn { display: none; background: none; border: 0; padding: .5rem; color: var(--indigo); cursor: pointer; }
.menu-btn .icon { width: 1.75rem; height: 1.75rem; }
.menu-btn__close { display: none; }
.menu-btn[aria-expanded="true"] .menu-btn__open { display: none; }
.menu-btn[aria-expanded="true"] .menu-btn__close { display: block; }

@media (max-width: 1080px) {
  .masthead__logo img { height: 42px; }
  .menu-btn { display: block; }
  .nav {
    display: none; position: fixed; inset: var(--bar-h) 0 0 0; z-index: 40;
    flex-direction: column; align-items: stretch; gap: 1.25rem;
    background: var(--paper); padding: .5rem var(--gutter) 2rem; overflow-y: auto;
  }
  .nav.is-open { display: flex; }
  .nav__list { flex-direction: column; gap: 0; }
  .nav__item { border-bottom: 1px solid var(--stone-line); }
  .nav__link { width: 100%; justify-content: space-between; padding: 1.1rem .25rem; font-size: 1.1rem; }
  .nav__link.is-current { box-shadow: none; color: var(--copper-deep); }
  .panel { position: static; width: auto; border: 0; box-shadow: none; padding: 0 0 .75rem; background: transparent; }
  .nav__cta { width: 100%; }
  body.nav-open { overflow: hidden; }
}

/* ---------- Bands ---------- */
.band { padding-block: var(--band); }
.band--paper { background: var(--paper); }
.band--stone { background: var(--stone); }
.band--indigo { background: var(--indigo); color: var(--mist); }
.band--indigo h2, .band--indigo h3 { color: var(--white); }
.band:not(.band--paper):not(.band--stone):not(.band--indigo) { background: var(--white); }
.band__head { max-width: 44rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.band__head p { font-size: var(--t-md); color: var(--slate); margin: 0; }
.band--indigo .band__head p { color: var(--mist); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: var(--mist);
  background: var(--indigo);
  padding-block: clamp(3.5rem, 8vw, 7rem);
}
/* faint copper traces in the background */
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .14;
  background:
    linear-gradient(90deg, transparent 0 calc(100% - 1px), var(--copper) 0) 0 0 / 96px 100%,
    linear-gradient(transparent 0 calc(100% - 1px), var(--copper) 0) 0 0 / 100% 96px;
  -webkit-mask-image: radial-gradient(ellipse at 80% 40%, #000 0%, transparent 65%);
          mask-image: radial-gradient(ellipse at 80% 40%, #000 0%, transparent 65%);
}
.hero__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(2.5rem, 6vw, 5.5rem); align-items: center; }
.hero h1 { color: var(--white); max-width: 13ch; font-stretch: 116%; }
.hero__lead { font-size: var(--t-md); max-width: 34rem; margin-top: 1.5rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.25rem; }

/* Live demo */
.demo { margin: 0; position: relative; display: grid; }
.demo__card {
  background: var(--indigo-2); border: 1px solid var(--indigo-3); border-radius: var(--r-card);
  padding: 1.1rem 1.25rem; color: var(--mist);
  transition: opacity .45s ease, transform .45s ease, border-color .3s;
}
.demo__row { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.demo__name { font: 650 1rem/1.2 var(--display); font-stretch: 106%; color: var(--white); }
.demo__place { font-size: var(--t-sm); }
.demo__reading { display: flex; align-items: center; justify-content: space-between; margin: .85rem 0 .6rem; }
.demo__value { font: 500 2.4rem/1 var(--mono); color: var(--white); font-variant-numeric: tabular-nums; }
.demo__status { font: 500 .8rem/1 var(--mono); padding: .45rem .6rem; border-radius: var(--r); border: 1px solid var(--indigo-3); color: var(--mist); transition: background-color .3s, color .3s, border-color .3s; }
.demo__gauge { position: relative; height: 8px; background: var(--indigo); border-radius: 4px; overflow: visible; }
.demo__fill { position: absolute; inset: 0 auto 0 0; width: 78.3%; background: var(--mist); border-radius: 4px; transition: background-color .3s; }
.demo__limit { position: absolute; left: 75%; top: -5px; bottom: -5px; width: 2px; background: var(--copper-light); }
.demo__scale { display: flex; justify-content: space-between; font: 400 .72rem/1 var(--mono); margin-top: .55rem; color: #8C92AE; }
.demo__scale span:nth-child(2) { position: relative; left: 8%; color: var(--copper-light); }

.demo__wire { height: 30px; width: 2px; margin-left: 2rem; background: var(--indigo-3); position: relative; }
.demo__wire span { position: absolute; inset: 0; background: var(--copper); transform-origin: top; transition: transform .45s ease; }
.demo__wire::after { content: ""; position: absolute; left: -4px; bottom: -5px; width: 10px; height: 10px; border-radius: 50%; background: var(--indigo); border: 2px solid var(--indigo-3); transition: border-color .3s; }

.demo__rule { display: grid; grid-template-columns: auto 1fr auto; gap: .9rem; align-items: center; }
.demo__chip { font: 650 .8rem/1 var(--display); font-stretch: 106%; color: var(--indigo); background: var(--copper); padding: .4rem .55rem; border-radius: var(--r); }
.demo__rule code { font: 400 .82rem/1.45 var(--mono); color: var(--mist); }
.demo__tick { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--copper); color: var(--indigo); transition: opacity .3s, transform .3s; }
.demo__tick .icon { width: 16px; height: 16px; stroke-width: 2.5; }

.demo__ticket { background: var(--paper); color: var(--indigo); border-color: var(--paper); }
.demo__num { font: 500 .85rem/1 var(--mono); color: var(--slate); }
.demo__prio { font: 650 .78rem/1 var(--display); font-stretch: 106%; padding: .35rem .55rem; border-radius: var(--r); background: var(--stone); color: var(--copper-deep); }
.demo__title { font: 650 1.1rem/1.3 var(--display); font-stretch: 106%; margin: .55rem 0 .7rem; }
.demo__meta { display: flex; gap: 2rem; margin: 0; font-size: var(--t-sm); }
.demo__meta dt { color: var(--slate); }
.demo__meta dd { margin: 0; font-weight: 600; }
.demo__command { display: flex; align-items: center; gap: .5rem; margin: .9rem 0 0; padding-top: .8rem; border-top: 1px dashed var(--stone-line); font: 500 .82rem/1.3 var(--mono); color: var(--copper-deep); transition: opacity .4s; }
.demo__command .icon { width: 16px; height: 16px; stroke-width: 2.5; }

.demo__replay { position: absolute; right: 0; bottom: -2.75rem; display: inline-flex; gap: .4rem; align-items: center; background: none; border: 0; color: var(--mist); font: 500 .85rem/1 var(--body); cursor: pointer; padding: .4rem; }
.demo__replay[hidden] { display: none; }
.demo__replay:hover { color: var(--copper-light); }
.demo__replay .icon { width: 1rem; height: 1rem; }

/* demo states — the HTML ships fully "complete"; JS steps through */
.demo.is-s1 .demo__status { background: var(--copper); border-color: var(--copper); color: var(--indigo); }
.demo.is-s1 .demo__fill { background: var(--copper); }
.demo.is-s1 .demo__device { border-color: var(--copper); }
.demo:not(.is-s1) .demo__wire:nth-of-type(2) span { transform: scaleY(0); }
.demo.is-s1 .demo__wire:nth-of-type(2)::after,
.demo.is-s3 .demo__wire:nth-of-type(4)::after { border-color: var(--copper); }
.demo:not(.is-s2) .demo__rule { opacity: .45; }
.demo:not(.is-s2) .demo__tick { opacity: 0; transform: scale(.6); }
.demo:not(.is-s3) .demo__wire:nth-of-type(4) span { transform: scaleY(0); }
.demo:not(.is-s3) .demo__ticket { opacity: 0; transform: translateY(10px); }
.demo:not(.is-s4) .demo__command { opacity: 0; }

/* ---------- The gap ---------- */
.gap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
.gap__statement h2 { font-size: var(--t-xl); max-width: 16ch; }
.gap__statement p { font-size: var(--t-md); color: var(--slate); max-width: 34rem; }
.loop { position: relative; display: grid; gap: 2.25rem; padding-left: 2.75rem; }
.loop::before { content: ""; position: absolute; left: 9px; top: 12px; bottom: 12px; width: 2px; background: var(--copper); }
.loop__step { position: relative; }
.loop__pad { position: absolute; left: calc(-2.75rem + 2px); top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--paper); border: 3px solid var(--copper); }
.loop__step h3 { font-size: var(--t-lg); margin-bottom: .1rem; }
.loop__who { font: 500 var(--t-sm)/1.3 var(--mono); color: var(--copper-deep); margin-bottom: .5rem; }
.loop__step p:last-child { color: var(--slate); margin: 0; max-width: 30rem; }

/* ---------- Solutions ---------- */
.solutions { border-top: 1px solid var(--stone-line); }
.solution {
  display: grid; grid-template-columns: 56px minmax(0, 1fr) minmax(0, 1.3fr) 40px; grid-template-rows: auto auto;
  column-gap: clamp(1rem, 3vw, 2.5rem); row-gap: .25rem; align-items: start;
  padding: 2rem 0; border-bottom: 1px solid var(--stone-line); text-decoration: none; color: var(--indigo);
  transition: background-color .2s;
}
.solution:hover { background: linear-gradient(90deg, var(--paper), transparent); }
.solution__icon { grid-row: span 2; width: 56px; height: 56px; border-radius: var(--r-card); display: grid; place-items: center; background: var(--stone); color: var(--copper-deep); }
.solution__icon .icon { width: 28px; height: 28px; }
.solution__name { font: 700 var(--t-lg)/1.15 var(--display); font-stretch: 112%; letter-spacing: -.01em; }
.solution__pain { grid-column: 2; font-style: italic; color: var(--slate); }
.solution__text { grid-column: 3; grid-row: 1 / span 2; color: var(--slate); }
.solution__go { grid-column: 4; grid-row: 1 / span 2; align-self: center; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; border: 1.5px solid var(--stone-line); color: var(--copper-deep); transition: background-color .2s, color .2s, border-color .2s; }
.solution:hover .solution__go { background: var(--copper); border-color: var(--copper); color: var(--indigo); }
.solution:hover .solution__name { color: var(--copper-deep); }

/* ---------- ITCM ---------- */
.itcm { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2.5rem, 6vw, 5.5rem); align-items: center; }
.itcm__tag { display: inline-block; font: 500 var(--t-sm)/1 var(--mono); color: var(--copper-deep); border: 1px solid var(--copper); border-radius: var(--r); padding: .45rem .6rem; margin-bottom: 1.25rem; }
.itcm__copy > p:not(.itcm__tag) { font-size: var(--t-md); color: #4A5165; }
.checks { display: grid; gap: .6rem; margin: 1.5rem 0 2rem; }
.checks li { display: flex; gap: .65rem; align-items: flex-start; font-weight: 500; }
.checks .icon { margin-top: .2rem; color: var(--copper-deep); stroke-width: 2.25; }
.itcm__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; }

.schematic { background: var(--paper); border: 1px solid var(--stone-line); border-radius: var(--r-card); padding: clamp(1rem, 3vw, 2rem); }
.schematic svg { width: 100%; height: auto; }
.schematic__dot { fill: var(--stone-line); }
.schematic__trace { fill: none; stroke: var(--copper); stroke-width: 3; stroke-linejoin: round; }
.schematic__trace--back { stroke-dasharray: 6 6; stroke-width: 2; }
.schematic__part rect { fill: var(--white); stroke: var(--indigo); stroke-width: 1.5; }
.schematic__part text { font: 600 14px var(--display); fill: var(--indigo); text-anchor: middle; }
.schematic__part--out rect { fill: var(--indigo); }
.schematic__part--out text { fill: var(--white); }
.schematic__chip rect { fill: var(--indigo); }
.schematic__chip path { stroke: var(--indigo); stroke-width: 3; }
.schematic__chip-name { font: 800 24px var(--display); font-stretch: 120%; fill: var(--copper-light); text-anchor: middle; letter-spacing: .04em; }
.schematic__chip-sub { font: 400 11px var(--mono); fill: var(--mist); text-anchor: middle; }
.schematic__pad { fill: var(--paper); stroke: var(--copper); stroke-width: 2.5; }
.schematic__note { font: 400 11px var(--mono); fill: var(--copper-deep); }

/* ---------- Industries (signal → outcome) ---------- */
.pairs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.pair { display: block; height: 100%; padding: 1.75rem; border-radius: var(--r-card); background: var(--indigo-2); border: 1px solid var(--indigo-3); text-decoration: none; color: var(--mist); transition: border-color .2s; }
.pair:hover { border-color: var(--copper); }
.pair__industry { display: block; font: 700 var(--t-lg)/1.15 var(--display); font-stretch: 112%; color: var(--white); margin-bottom: 1.25rem; }
.pair__flow { display: grid; grid-template-columns: minmax(0, 1fr) 48px minmax(0, 1fr); align-items: start; gap: .5rem; }
.pair__label { display: block; font: 500 .75rem/1 var(--mono); color: var(--copper-light); margin-bottom: .45rem; }
.pair__signal, .pair__outcome { font-size: .98rem; line-height: 1.45; }
.pair__outcome { color: var(--white); }
.pair__trace { position: relative; height: 2px; margin-top: calc(.75rem + .45rem + .7rem); background: var(--copper); }
.pair__trace::before, .pair__trace::after { content: ""; position: absolute; top: -4px; width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--copper); background: var(--indigo-2); }
.pair__trace::before { left: -2px; }
.pair__trace::after { right: -2px; background: var(--copper); }

/* ---------- Engagements ---------- */
.engage { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.offer { display: flex; flex-direction: column; padding: 1.6rem; background: var(--white); border: 1px solid var(--stone-line); border-radius: var(--r-card); }
.offer__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.offer__icon { color: var(--copper-deep); }
.offer__icon .icon { width: 30px; height: 30px; }
.offer__span { font: 500 .78rem/1 var(--mono); color: var(--slate); background: var(--paper); border: 1px solid var(--stone-line); padding: .4rem .55rem; border-radius: var(--r); }
.offer h3 { margin-bottom: .5rem; }
.offer p { color: var(--slate); font-size: .98rem; }
.offer__best { color: var(--indigo) !important; font-weight: 500; border-left: 3px solid var(--copper); padding-left: .75rem; }
.offer .link { margin-top: auto; }

/* ---------- Closer ---------- */
.closer { background: var(--copper); color: var(--indigo); padding-block: clamp(4rem, 8vw, 6.5rem); position: relative; overflow: hidden; }
.closer__inner { position: relative; z-index: 1; max-width: var(--wrap); }
.closer h2 { font-size: var(--t-xl); max-width: 18ch; }
.closer p { font-size: var(--t-md); max-width: 36rem; margin-bottom: 2rem; }

/* ---------- Footer ---------- */
.footer { background: var(--indigo); color: var(--mist); padding-top: clamp(3.5rem, 7vw, 5rem); font-size: .95rem; }
.footer a { color: var(--mist); text-decoration: none; }
.footer a:hover { color: var(--copper-light); }
.footer__top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid var(--indigo-3); }
.footer__logo { height: 60px; width: auto; }
.footer__pitch { font: 600 var(--t-md)/1.35 var(--display); font-stretch: 108%; color: var(--white); max-width: 30rem; margin: 0; }
.footer__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(0, 1.4fr); gap: 2.5rem; padding-block: 2.75rem; }
.footer__heading { font: 650 .95rem/1.2 var(--display); font-stretch: 108%; color: var(--copper-light); margin-bottom: 1rem; letter-spacing: 0; }
.footer__col ul { display: grid; gap: .6rem; }
.footer__contact li, .footer__contact a { display: flex; gap: .6rem; align-items: flex-start; }
.footer__contact .icon { width: 1.1rem; height: 1.1rem; margin-top: .2rem; color: var(--copper-light); }
.footer__social { display: flex !important; gap: .5rem; margin-top: 1rem; }
.footer__social a { width: 40px; height: 40px; display: grid !important; place-items: center; border: 1px solid var(--indigo-3); border-radius: 50%; }
.footer__base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding-block: 1.5rem; border-top: 1px solid var(--indigo-3); font-size: var(--t-sm); }
.footer__base p { margin: 0; }
.footer__base ul { display: flex; gap: 1.5rem; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .engage { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer__contact { grid-column: 1 / -1; }
}
@media (max-width: 920px) {
  .hero__grid, .gap, .itcm { grid-template-columns: 1fr; }
  .demo { max-width: 520px; }
  .pairs { grid-template-columns: 1fr; }
  .solution { grid-template-columns: 56px minmax(0, 1fr) 40px; }
  .solution__text { grid-column: 2; grid-row: auto; margin-top: .5rem; }
  .solution__go { grid-column: 3; grid-row: 1 / span 3; }
  .solution__icon { grid-row: span 3; }
}
@media (max-width: 640px) {
  .engage, .footer__grid { grid-template-columns: 1fr; }
  .solution { grid-template-columns: 1fr; row-gap: .4rem; }
  .solution__icon { grid-row: auto; width: 48px; height: 48px; margin-bottom: .5rem; }
  .solution__name, .solution__pain, .solution__text { grid-column: 1; }
  .solution__go { display: none; }
  .pair__flow { grid-template-columns: 1fr; }
  .pair__trace { width: 2px; height: 32px; margin: .25rem 0 .25rem 4px; }
  .pair__trace::before { left: -4px; top: -2px; }
  .pair__trace::after { left: -4px; right: auto; top: auto; bottom: -2px; }
  .hero__actions .btn, .itcm__actions .btn { width: 100%; }
  .demo__value { font-size: 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}
@media print {
  .masthead, .footer, .demo, .menu-btn { display: none; }
}

/* =========================================================
   Inner pages
   ========================================================= */

/* Page top (indigo intro band) */
.page-top { background: var(--indigo); color: var(--mist); padding-block: clamp(3rem, 7vw, 5.5rem) clamp(3rem, 6vw, 4.5rem); position: relative; overflow: hidden; }
.page-top::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: linear-gradient(90deg, var(--copper) 0 33%, transparent 33%); }
.page-top h1 { color: var(--white); font-size: clamp(2.2rem, 1.4rem + 3.2vw, 3.6rem); max-width: 18ch; margin-bottom: .4em; }
.page-top__lead { font-size: var(--t-md); max-width: 40rem; margin: 0; }
.crumbs { display: flex; flex-wrap: wrap; gap: .5rem; font: 500 var(--t-sm)/1 var(--mono); margin-bottom: 1.5rem; }
.crumbs a { color: var(--copper-light); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.crumbs li + li::before { content: "/"; margin-right: .5rem; color: var(--indigo-3); }
.crumbs [aria-current] { color: var(--mist); }

/* Two-column helpers */
.split { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(2.5rem, 6vw, 5rem); align-items: start; }
.split--even { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.lede { font-size: var(--t-md); color: #4A5165; }
.lede--big { font: 600 var(--t-lg)/1.4 var(--display); font-stretch: 106%; color: var(--indigo); letter-spacing: -.005em; }

/* Contact form */
.form-card { background: var(--white); border: 1px solid var(--stone-line); border-radius: var(--r-card); padding: clamp(1.5rem, 4vw, 2.5rem); }
.form-card h2 { font-size: var(--t-lg); }
.form { display: grid; gap: 1.25rem; }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.field { display: grid; gap: .4rem; }
.field label { font: 650 .95rem/1.3 var(--display); font-stretch: 106%; color: var(--indigo); }
.field .optional { font: 400 var(--t-sm) var(--body); color: var(--slate); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 50px; padding: .75rem .9rem; font: inherit; color: var(--indigo);
  background: var(--paper); border: 1.5px solid var(--stone-line); border-radius: var(--r);
}
.field textarea { min-height: 170px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; background: var(--white); border-color: var(--copper); box-shadow: 0 0 0 3px rgba(200,118,58,.22); }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: #B42318; }
.field__error { color: #B42318; font-size: var(--t-sm); margin: 0; }
.form__note { font-size: var(--t-sm); color: var(--slate); margin: 0; }
.form .btn { justify-self: start; }
.hp-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.alert { display: flex; gap: .75rem; align-items: flex-start; padding: 1rem 1.25rem; border-radius: var(--r); margin-bottom: 1.5rem; border-left: 4px solid; }
.alert p { margin: 0; }
.alert .icon { margin-top: .15rem; }
.alert--success { background: #EAF4EC; border-color: #2E7D46; color: #1D4F2C; }
.alert--error { background: #FBEDEA; border-color: #B42318; color: #7A1A12; }

/* Next steps + contact details */
.next { display: grid; gap: 1.5rem; margin-bottom: 2.5rem; }
.next h2 { font-size: var(--t-lg); margin-bottom: .25rem; }
.next ol { position: relative; display: grid; gap: 1.5rem; padding-left: 2.5rem; counter-reset: next; }
.next ol::before { content: ""; position: absolute; left: 13px; top: 14px; bottom: 14px; width: 2px; background: var(--copper); }
.next li { position: relative; counter-increment: next; }
.next li::before { content: counter(next); position: absolute; left: -2.5rem; top: 0; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--paper); border: 2px solid var(--copper); font: 600 .8rem/1 var(--mono); color: var(--copper-deep); }
.next h3 { font-size: 1.05rem; margin-bottom: .2rem; }
.next p { color: var(--slate); margin: 0; font-size: .98rem; }
.reach { display: grid; gap: 1rem; padding: 1.5rem; background: var(--stone); border-radius: var(--r-card); }
.reach li { display: grid; grid-template-columns: 1.4rem 1fr; gap: .75rem; }
.reach .icon { margin-top: .2rem; color: var(--copper-deep); }
.reach strong { display: block; font: 650 .9rem/1.3 var(--display); font-stretch: 106%; }
.reach a { color: var(--indigo); }
.map { margin-top: 1rem; border-radius: var(--r-card); overflow: hidden; border: 1px solid var(--stone-line); aspect-ratio: 4 / 3; background: var(--stone); }
.map iframe { width: 100%; height: 100%; border: 0; display: block; }

/* About */
.name-card { background: var(--indigo); color: var(--mist); border-radius: var(--r-card); padding: clamp(1.75rem, 4vw, 2.5rem); }
.name-card__word { font: 800 clamp(2.4rem, 1.6rem + 3vw, 3.6rem)/1 var(--display); font-stretch: 120%; color: var(--white); letter-spacing: -.01em; margin: 0 0 1.25rem; }
.name-card__word span { color: var(--copper-light); }
.name-card dl { display: grid; gap: 1rem; margin: 0; }
.name-card dt { font: 500 var(--t-sm)/1 var(--mono); color: var(--copper-light); margin-bottom: .3rem; }
.name-card dd { margin: 0; }
.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--stone-line); }
.principle { padding: 2rem 2rem 2rem 0; border-bottom: 1px solid var(--stone-line); }
.principle:nth-child(even) { padding: 2rem 0 2rem 2rem; border-left: 1px solid var(--stone-line); }
.principle h3 { font-size: var(--t-lg); }
.principle p { color: var(--slate); margin: 0; max-width: 32rem; }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.fact { background: var(--indigo-2); border: 1px solid var(--indigo-3); border-radius: var(--r-card); padding: 1.5rem; }
.fact__label { display: block; font: 500 var(--t-sm)/1 var(--mono); color: var(--copper-light); margin-bottom: .6rem; }
.fact__value { display: block; font: 650 var(--t-md)/1.3 var(--display); font-stretch: 108%; color: var(--white); }
.fact p { margin: .5rem 0 0; font-size: .95rem; }

/* Legal prose */
.prose { max-width: 46rem; }
.prose h2 { font-size: var(--t-lg); margin-top: 2.5rem; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.1rem; margin-top: 1.75rem; }
.prose p, .prose li { color: #3B4256; }
.prose ul { list-style: none; display: grid; gap: .5rem; margin: 0 0 1.25rem; }
.prose ul li { position: relative; padding-left: 1.4rem; }
.prose ul li::before { content: ""; position: absolute; left: 0; top: .6em; width: 8px; height: 8px; border-radius: 50%; border: 2px solid var(--copper); }
.prose a { color: var(--copper-deep); }
.legal-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.toc { position: sticky; top: calc(var(--bar-h) + 1.5rem); font-size: .95rem; }
.toc h2 { font: 650 .95rem/1.2 var(--display); font-stretch: 106%; margin-bottom: .75rem; }
.toc ol { display: grid; gap: .45rem; counter-reset: toc; }
.toc a { color: var(--slate); text-decoration: none; }
.toc a:hover { color: var(--copper-deep); text-decoration: underline; }
.updated { font: 500 var(--t-sm)/1 var(--mono); color: var(--copper-light); margin-top: 1.25rem; }

/* Error page */
.error { padding-block: clamp(4rem, 10vw, 8rem); }
.error .error__code { font: 800 clamp(4.5rem, 14vw, 9rem)/1 var(--display); font-stretch: 125%; color: transparent; -webkit-text-stroke: 2px var(--copper); margin: 0 0 1rem; }
.error p { font-size: var(--t-md); color: var(--slate); max-width: 34rem; }
.error__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }

@media (max-width: 920px) {
  .split, .split--even, .legal-layout { grid-template-columns: 1fr; }
  .toc { position: static; }
  .facts { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .form__row, .principles { grid-template-columns: 1fr; }
  .principle, .principle:nth-child(even) { padding: 1.75rem 0; border-left: 0; }
}

/* =========================================================
   Shared detail + hub templates
   ========================================================= */
.page-top__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }

/* Symptoms ("Sounds familiar?") */
.symptoms { background: var(--paper); border: 1px solid var(--stone-line); border-radius: var(--r-card); padding: clamp(1.5rem, 3vw, 2rem); }
.symptoms h2 { font-size: var(--t-md); margin-bottom: 1rem; }
.symptoms ul { display: grid; gap: .85rem; }
.symptoms li { position: relative; padding-left: 1.6rem; font-style: italic; color: #3B4256; }
.symptoms li::before { content: ""; position: absolute; left: 0; top: .55em; width: 10px; height: 10px; border-radius: 50%; border: 2.5px solid var(--copper); }

/* Capabilities grid */
.caps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem 2rem; }
.cap { position: relative; padding-top: 1.5rem; border-top: 2px solid var(--copper); }
.cap__pad { position: absolute; top: -7px; left: 0; width: 12px; height: 12px; border-radius: 50%; background: var(--paper); border: 2.5px solid var(--copper); }
.cap h3 { margin-bottom: .45rem; }
.cap p { color: var(--slate); margin: 0; }

/* Scenario: signal -> decision -> action */
.scenario { display: grid; grid-template-columns: repeat(var(--n, 3), minmax(0, 1fr)); gap: 0; position: relative; }
.scenario:has(> :nth-child(4)) { --n: 4; }
.scenario__step { position: relative; padding: 1.75rem 1.5rem 1.75rem 0; }
.scenario__step::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--copper); }
.scenario__step::after { content: ""; position: absolute; top: -6px; left: 0; width: 14px; height: 14px; border-radius: 50%; background: var(--indigo); border: 2.5px solid var(--copper); }
.scenario__step:last-child::after { background: var(--copper); }
.scenario__label { display: block; font: 500 var(--t-sm)/1 var(--mono); color: var(--copper-light); margin: .5rem 0 .75rem; }
.scenario__step p { color: var(--white); margin: 0; font-size: 1.05rem; line-height: 1.5; }

/* Numbered steps (real sequences only) */
.steps { display: grid; gap: 0; border-top: 1px solid var(--stone-line); }
.steps__item { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 1.5rem; padding: 1.75rem 0; border-bottom: 1px solid var(--stone-line); }
.steps__num { width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; border: 2px solid var(--copper); color: var(--copper-deep); font: 600 1.05rem/1 var(--mono); background: var(--white); }
.steps__item h3 { margin-bottom: .25rem; }
.steps__meta { font: 500 var(--t-sm)/1.3 var(--mono); color: var(--copper-deep); margin-bottom: .5rem; }
.steps__item p:last-child { color: var(--slate); margin: 0; max-width: 46rem; }

/* Outcomes, chips, fit */
.checks--lg { gap: 1rem; margin: 0; }
.checks--lg li { font-size: 1.05rem; font-weight: 400; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chips li { font: 500 .85rem/1 var(--mono); padding: .6rem .75rem; border-radius: var(--r); background: var(--paper); border: 1px solid var(--stone-line); color: var(--indigo); }
.fit ul { display: grid; gap: .85rem; }
.fit li { position: relative; padding-left: 1.6rem; color: #3B4256; }
.fit li::before { content: ""; position: absolute; left: 0; top: .6em; width: 14px; height: 2px; background: var(--copper); }

/* FAQ */
.faq { border-top: 1px solid var(--stone-line); }
.faq details { border-bottom: 1px solid var(--stone-line); }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 0; cursor: pointer; list-style: none; font: 650 1.1rem/1.35 var(--display); font-stretch: 106%; }
.faq summary::-webkit-details-marker { display: none; }
.faq__chev { transition: transform .2s; color: var(--copper-deep); }
.faq details[open] .faq__chev { transform: rotate(180deg); }
.faq details p { color: var(--slate); margin: 0 0 1.5rem; max-width: 42rem; }

/* Related links */
.related { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.related__card { display: flex; flex-direction: column; height: 100%; padding: 1.5rem; background: var(--white); border: 1px solid var(--stone-line); border-radius: var(--r-card); text-decoration: none; color: var(--indigo); transition: border-color .2s; }
.related__card:hover { border-color: var(--copper); }
.related__title { font: 700 var(--t-md)/1.2 var(--display); font-stretch: 110%; margin-bottom: .4rem; }
.related__text { color: var(--slate); font-size: .98rem; margin-bottom: 1.25rem; }
.related__go { margin-top: auto; color: var(--copper-deep); }

/* Hub (section landing) */
.hub { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.hub__card { display: flex; flex-direction: column; height: 100%; padding: clamp(1.5rem, 3vw, 2.25rem); background: var(--paper); border: 1px solid var(--stone-line); border-radius: var(--r-card); text-decoration: none; color: var(--indigo); transition: border-color .2s, background-color .2s; }
.hub__card:hover { border-color: var(--copper); background: var(--white); }
.hub__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.25rem; min-height: 1px; }
.hub__icon { width: 52px; height: 52px; border-radius: var(--r-card); display: grid; place-items: center; background: var(--stone); color: var(--copper-deep); }
.hub__icon .icon { width: 26px; height: 26px; }
.hub__meta { font: 500 .78rem/1 var(--mono); color: var(--slate); background: var(--white); border: 1px solid var(--stone-line); padding: .4rem .55rem; border-radius: var(--r); }
.hub__title { font: 700 var(--t-lg)/1.15 var(--display); font-stretch: 112%; margin-bottom: .5rem; }
.hub__text { color: var(--slate); margin-bottom: 1.25rem; }
.hub__points { display: grid; gap: .45rem; margin-bottom: 1.5rem; }
.hub__points span { display: flex; gap: .55rem; align-items: flex-start; font-size: .95rem; }
.hub__points .icon { width: 1.05rem; height: 1.05rem; margin-top: .2rem; color: var(--copper-deep); stroke-width: 2.25; }
.hub__go { margin-top: auto; display: inline-flex; align-items: center; gap: .45rem; font-weight: 600; color: var(--copper-deep); }
.hub__go .icon { width: 1.1rem; height: 1.1rem; transition: transform .15s; }
.hub__card:hover .hub__go .icon { transform: translateX(3px); }
.note { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 2rem; }
.note h2 { font-size: var(--t-lg); }
.note .lede { margin: 0; max-width: 42rem; }

/* ITCM pages */
.arch { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 1rem; }
.arch__layer { position: relative; padding: 1.5rem 1.25rem; background: var(--white); border: 1px solid var(--stone-line); margin-left: -1px; }
.arch__layer:first-child { border-radius: var(--r-card) 0 0 var(--r-card); margin-left: 0; }
.arch__layer:last-child { border-radius: 0 var(--r-card) var(--r-card) 0; }
.arch__layer--itcm { background: var(--indigo); border-color: var(--indigo); color: var(--mist); }
.arch__layer--itcm h3 { color: var(--copper-light); }
.arch__tag { display: block; font: 500 .75rem/1 var(--mono); color: var(--copper-deep); margin-bottom: .6rem; }
.arch__layer--itcm .arch__tag { color: var(--mist); }
.arch__layer h3 { font-size: var(--t-md); margin-bottom: .4rem; }
.arch__layer p { font-size: .95rem; margin: 0; color: var(--slate); }
.arch__layer--itcm p { color: var(--mist); }
.usecases { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.usecase { padding: 1.75rem; background: var(--white); border: 1px solid var(--stone-line); border-radius: var(--r-card); }
.usecase__where { font: 500 var(--t-sm)/1 var(--mono); color: var(--copper-deep); margin-bottom: .75rem; display: block; }
.usecase h3 { margin-bottom: 1rem; }
.usecase dl { display: grid; gap: .75rem; margin: 0; }
.usecase dt { font: 650 .85rem/1.2 var(--display); font-stretch: 106%; color: var(--indigo); }
.usecase dd { margin: .15rem 0 0; color: var(--slate); font-size: .98rem; }

@media (max-width: 1080px) {
  .caps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .arch { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
  .arch__layer, .arch__layer:first-child, .arch__layer:last-child { border-radius: var(--r-card); margin-left: 0; }
}
@media (max-width: 920px) {
  .scenario, .scenario:has(> :nth-child(4)) { grid-template-columns: 1fr; }
  .scenario__step { padding: 0 0 1.75rem 2rem; }
  .scenario__step::before { top: 0; bottom: 0; left: 6px; right: auto; width: 2px; height: auto; }
  .scenario__step:last-child::before { display: none; }
  .scenario__step::after { top: 0; }
  .scenario__label { margin-top: 0; }
  .related, .hub, .usecases { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .caps, .arch { grid-template-columns: 1fr; }
  .steps__item { grid-template-columns: 1fr; gap: .75rem; }
}