/* ============================================================
   ALTRUIS — landing page
   Palette derived from the brand mark (teal / turquoise / petrol)
   ============================================================ */

:root {
  /* Brand palette */
  --bg:        #04161b;
  --bg-2:      #06212a;
  --petrol:    #1d5d70;
  --petrol-2:  #2c6e81;
  --teal:      #23c2bd;
  --cyan:      #45b8c2;
  --mint:      #6ff0df;
  --ink:       #ecf8f8;
  --muted:     #9bbcc1;
  --muted-2:   #6f9298;
  --line:      rgba(120, 200, 205, 0.14);

  --grad: linear-gradient(110deg, var(--cyan) 0%, var(--teal) 45%, var(--mint) 100%);
  --grad-soft: linear-gradient(135deg, rgba(69,184,194,.18), rgba(111,240,223,.06));

  --glass-bg: rgba(13, 42, 51, 0.42);
  --glass-brd: rgba(120, 205, 210, 0.16);
  --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.75);

  --maxw: 1180px;
  --radius: 18px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ---------------- Reset / base ---------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-weight: 300;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { font-family: "Space Grotesk", sans-serif; font-weight: 600; line-height: 1.08; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
em { font-style: normal; }
.grad,
.section__title em,
h2 em {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------- Layout helpers ---------------- */
.section {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(70px, 11vw, 150px) clamp(20px, 5vw, 40px);
}
.section__head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 68px); }
.section__title { font-size: clamp(1.9rem, 4.6vw, 3.3rem); }
.section__lead { margin-top: 20px; color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.18rem); max-width: 620px; }
.kicker {
  display: inline-block; font-family: "Space Grotesk", sans-serif;
  font-size: .82rem; letter-spacing: .28em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 18px;
}
.kicker::before { content: "—"; margin-right: 10px; color: var(--muted-2); }

.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-brd);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border-radius: var(--radius);
}

/* ============================================================
   Ambient animated background
   ============================================================ */
.bg-fx { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
#neural { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .55; }

.aurora {
  position: absolute; border-radius: 50%;
  filter: blur(90px); opacity: .5; mix-blend-mode: screen;
  animation: drift 26s var(--ease) infinite alternate;
}
.aurora--1 { width: 52vw; height: 52vw; left: -12vw; top: -16vw; background: radial-gradient(circle, rgba(35,194,189,.55), transparent 65%); }
.aurora--2 { width: 46vw; height: 46vw; right: -14vw; top: 18vh; background: radial-gradient(circle, rgba(29,93,112,.7), transparent 65%); animation-delay: -8s; }
.aurora--3 { width: 40vw; height: 40vw; left: 30vw; bottom: -18vw; background: radial-gradient(circle, rgba(111,240,223,.32), transparent 65%); animation-delay: -16s; }

@keyframes drift {
  0%   { transform: translate3d(0,0,0) scale(1); }
  50%  { transform: translate3d(6vw, 4vh, 0) scale(1.12); }
  100% { transform: translate3d(-4vw, -3vh, 0) scale(.96); }
}

.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 78%);
  opacity: .5;
}

/* Floating brand triangles */
.floaters { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.tri {
  position: absolute; width: 0; height: 0; opacity: .12;
  border-left: var(--s) solid transparent;
  border-right: var(--s) solid transparent;
  border-bottom: calc(var(--s) * 1.7) solid var(--teal);
  filter: drop-shadow(0 0 18px rgba(35,194,189,.5));
  animation: float 18s ease-in-out infinite;
}
.tri--a { --s: 34px; top: 24%; left: 8%;  animation-delay: 0s; }
.tri--b { --s: 20px; top: 62%; right: 12%; animation-delay: -6s; border-bottom-color: var(--mint); }
.tri--c { --s: 46px; bottom: 10%; left: 18%; animation-delay: -11s; opacity: .08; }
@keyframes float {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50%     { transform: translateY(-30px) rotate(18deg); }
}

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px clamp(20px, 5vw, 44px);
  transition: padding .4s var(--ease), background .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  padding-block: 10px;
  background: rgba(4, 18, 23, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.nav__logo { height: 38px; width: auto; transition: height .4s var(--ease); }
.nav.scrolled .nav__logo { height: 32px; }
.nav__links { display: flex; align-items: center; gap: clamp(14px, 2.2vw, 34px); }
.nav__links a { font-size: .95rem; color: var(--muted); transition: color .25s; position: relative; }
.nav__links a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1.5px; width: 0;
  background: var(--grad); transition: width .3s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover:not(.nav__cta)::after { width: 100%; }
.nav__cta {
  padding: 9px 20px; border-radius: 999px; color: var(--bg) !important;
  background: var(--grad); font-weight: 500;
  box-shadow: 0 8px 24px -10px rgba(35,194,189,.7);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative; z-index: 1;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  max-width: var(--maxw); margin-inline: auto;
  padding: 120px clamp(20px, 5vw, 40px) 80px;
}
.hero__inner { max-width: 920px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: "Space Grotesk", sans-serif; font-size: .9rem;
  letter-spacing: .04em; color: var(--muted);
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--glass-brd); background: var(--glass-bg);
  margin-bottom: 30px;
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 12px var(--mint); animation: pulse 2.2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: .4; transform: scale(.7);} }

.hero__title {
  font-size: clamp(2.6rem, 8vw, 6rem);
  line-height: 1.02; letter-spacing: -0.03em; font-weight: 700;
}
.hero__title .line { display: block; overflow: hidden; padding-bottom: .06em; }
.hero__title .w {
  display: inline-block;
  transform: translateY(110%) rotate(4deg);
  opacity: 0;
  animation: wordUp .9s var(--ease) forwards;
  animation-delay: calc(var(--d) * 0.085s + 0.15s);
}
@keyframes wordUp { to { transform: translateY(0) rotate(0); opacity: 1; } }

.hero__sub {
  margin-top: 30px; max-width: 640px;
  font-size: clamp(1.05rem, 1.8vw, 1.3rem); color: var(--muted);
}

.hero__entities { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.chip {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 11px 20px; border-radius: 999px;
  background: var(--glass-bg); border: 1px solid var(--glass-brd);
  font-size: .98rem; font-weight: 400; backdrop-filter: blur(10px);
}
.chip .flag { font-size: 1.2rem; line-height: 1; }

.scroll-cue {
  position: absolute; bottom: 34px; left: clamp(20px, 5vw, 40px);
  display: flex; align-items: center; gap: 12px;
  font-size: .78rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted-2);
}
.scroll-cue span {
  display: inline-block; width: 26px; height: 42px; border: 1.5px solid var(--glass-brd); border-radius: 14px; position: relative;
}
.scroll-cue span::after {
  content: ""; position: absolute; top: 8px; left: 50%; width: 4px; height: 8px; border-radius: 2px; background: var(--teal);
  transform: translateX(-50%); animation: wheel 1.8s infinite;
}
@keyframes wheel { 0% { opacity: 0; transform: translate(-50%,0);} 30%{opacity:1;} 100% { opacity: 0; transform: translate(-50%, 16px);} }

/* ============================================================
   Reveal-on-scroll system
   ============================================================ */
/* Elements are only hidden up-front when JS is available to reveal them,
   so the page degrades gracefully (fully visible) if scripts fail to run. */
.js [data-reveal] {
  opacity: 0; transform: translateY(34px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  will-change: opacity, transform;
}
.js [data-reveal].in-view { opacity: 1; transform: none; }

/* ============================================================
   Two companies
   ============================================================ */
.faces__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(18px, 3vw, 30px); }
.face-card {
  position: relative; padding: clamp(28px, 4vw, 44px); overflow: hidden;
  transition: transform .5s var(--ease), border-color .5s var(--ease);
}
.face-card::before {
  content: ""; position: absolute; inset: 0;
  background: var(--grad-soft); opacity: 0; transition: opacity .5s;
}
.face-card:hover { transform: translateY(-6px); border-color: rgba(111,240,223,.4); }
.face-card:hover::before { opacity: 1; }
.face-card > * { position: relative; }
.face-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.face-card__flag { font-size: 2.4rem; line-height: 1; }
.face-card__axis {
  display: inline-block; font-family: "Space Grotesk"; font-size: .72rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--bg);
  background: var(--grad); padding: 6px 14px; border-radius: 999px;
}
.face-card h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
.face-card__loc { color: var(--teal); font-family: "Space Grotesk"; letter-spacing: .1em; text-transform: uppercase; font-size: .82rem; margin: 8px 0 16px; }
.face-card__txt { color: var(--muted); }
.face-card__axes { list-style: none; margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line); display: grid; gap: 13px; }
.face-card__axes li { position: relative; padding-left: 24px; color: var(--ink); font-size: .94rem; }
.face-card__axes li::before {
  content: ""; position: absolute; left: 0; top: .42em;
  border-left: 5px solid transparent; border-right: 5px solid transparent;
  border-bottom: 8px solid var(--teal);
}

/* ============================================================
   Activities — 3 cards
   ============================================================ */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2.5vw, 26px); }
.card {
  position: relative; padding: clamp(26px, 3vw, 38px); overflow: hidden;
  transition: transform .5s var(--ease), border-color .5s var(--ease), box-shadow .5s var(--ease);
}
.card::after {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease);
}
.card:hover { transform: translateY(-8px); border-color: rgba(111,240,223,.34); box-shadow: var(--shadow); }
.card:hover::after { transform: scaleX(1); }
.card__num { font-family: "Space Grotesk"; font-size: .85rem; color: var(--muted-2); letter-spacing: .2em; }
.card__icon {
  width: 56px; height: 56px; margin: 18px 0 22px; color: var(--teal);
  display: grid; place-items: center; border-radius: 14px;
  background: var(--grad-soft); border: 1px solid var(--glass-brd);
}
.card__icon svg { width: 30px; height: 30px; }
.card h3 { font-size: 1.35rem; margin-bottom: 12px; }
.card p { color: var(--muted); font-size: .98rem; }

/* ============================================================
   Stats band
   ============================================================ */
.stats-band { padding-block: 0; }
.stats {
  display: grid; grid-template-columns: repeat(5, 1fr);
  padding: clamp(28px, 4vw, 46px) clamp(20px, 3vw, 40px);
  text-align: center; gap: 20px;
}
.stat { position: relative; }
.stat + .stat::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); height: 46px; width: 1px; background: var(--line); }
.stat__num { display: block; font-family: "Space Grotesk"; font-weight: 700; font-size: clamp(2rem, 4.5vw, 3.2rem);
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.stat__label { display: block; margin-top: 10px; color: var(--muted); font-size: .9rem; letter-spacing: .04em; }

/* ============================================================
   Expertises
   ============================================================ */
.exp-grid { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(16px, 2vw, 22px); }
.exp { position: relative; padding: clamp(24px, 3vw, 34px); overflow: hidden; transition: transform .5s var(--ease), border-color .5s var(--ease); }
.exp--wide { grid-column: span 4; display: grid; grid-template-columns: auto 1fr; gap: 8px 40px; align-items: center; }
.exp--wide .exp__idx { grid-row: span 2; }
.exp:hover { transform: translateY(-5px); border-color: rgba(111,240,223,.34); }
.exp__idx { font-family: "Space Grotesk"; font-size: 1.1rem; color: var(--teal); opacity: .7; }
.exp h3 { font-size: 1.2rem; margin: 14px 0 8px; }
.exp--wide h3 { margin-top: 0; font-size: 1.5rem; }
.exp p { color: var(--muted); font-size: .94rem; }
.exp--wide p { margin: 0; }

/* ============================================================
   Services
   ============================================================ */
.svc-list { list-style: none; border-top: 1px solid var(--line); }
.svc {
  display: flex; align-items: center; gap: 24px;
  padding: clamp(20px, 3vw, 30px) 8px;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.1rem, 2.4vw, 1.7rem);
  font-family: "Space Grotesk"; font-weight: 400; letter-spacing: -.01em;
  transition: padding-left .4s var(--ease), color .4s var(--ease);
}
.svc__arrow {
  flex: none; width: 30px; height: 30px; border-radius: 50%;
  border: 1.5px solid var(--glass-brd); position: relative;
  transition: background .4s var(--ease), border-color .4s var(--ease);
}
.svc__arrow::after {
  content: ""; position: absolute; inset: 0; margin: auto; width: 8px; height: 8px;
  border-top: 1.5px solid var(--teal); border-right: 1.5px solid var(--teal);
  transform: rotate(45deg) translate(-1px,1px); transition: border-color .4s;
}
.svc:hover { padding-left: 26px; color: var(--mint); }
.svc:hover .svc__arrow { background: var(--grad); border-color: transparent; }
.svc:hover .svc__arrow::after { border-color: var(--bg); }

/* ============================================================
   Maturity ladder (centerpiece)
   ============================================================ */
.ladder {
  position: relative;
  display: grid; grid-template-columns: repeat(5, 1fr);
  align-items: end; gap: clamp(10px, 1.5vw, 20px);
  padding-top: 30px;
}
.ladder__track {
  position: absolute; left: 0; right: 0; bottom: 38px; height: 2px;
  background: var(--line); overflow: hidden; border-radius: 2px;
}
.ladder__fill {
  display: block; height: 100%; width: 100%;
  background: var(--grad); transform-origin: left;
  transition: transform 1.6s var(--ease) .2s;
}
.js .ladder__fill { transform: scaleX(0); }
.js .ladder.in-view .ladder__fill { transform: scaleX(1); }

.step { display: flex; flex-direction: column-reverse; position: relative; }
.step__bar {
  height: calc(70px + var(--lvl) * 64px);
  border-radius: 12px 12px 3px 3px; position: relative; margin-top: 16px;
  background: linear-gradient(to top, rgba(29,93,112,.25), rgba(35,194,189,.16));
  border: 1px solid var(--glass-brd); overflow: hidden;
  transform-origin: bottom;
  transition: transform .9s var(--ease);
  transition-delay: calc(var(--lvl) * 0.12s + .2s);
}
.js .step__bar { transform: scaleY(0); }
.ladder.in-view .step__bar { transform: scaleY(1); }
.step__bar-fill {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(35,194,189,.0), rgba(35,194,189,.30) 60%, rgba(111,240,223,.55));
  opacity: calc(0.35 + var(--lvl) * 0.16);
}
.step__bar::after { /* node on the baseline */
  content: ""; position: absolute; bottom: -5px; left: 50%; transform: translateX(-50%);
  width: 10px; height: 10px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 14px var(--teal);
}
.step--peak .step__bar { box-shadow: 0 0 50px -8px rgba(35,194,189,.55); }
.step--peak .step__bar-fill { background: linear-gradient(to top, rgba(35,194,189,.15), var(--teal) 70%, var(--mint)); opacity: .9; }

.step__body { padding: 20px 18px; }
.step__tag {
  display: inline-block; font-family: "Space Grotesk"; font-weight: 700;
  font-size: .95rem; padding: 3px 12px; border-radius: 999px; margin-bottom: 12px;
  color: var(--teal); border: 1px solid var(--glass-brd); background: rgba(35,194,189,.08);
}
.step--peak .step__tag { color: var(--bg); background: var(--grad); border-color: transparent; }
.step__body h3 { font-size: 1.12rem; margin-bottom: 8px; }
.step__body p { color: var(--muted); font-size: .86rem; line-height: 1.5; }

/* ============================================================
   Technologies
   ============================================================ */
.tech-groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 2vw, 24px); }
.tech-group { padding: clamp(22px, 2.6vw, 32px); transition: transform .5s var(--ease), border-color .5s var(--ease); }
.tech-group:hover { transform: translateY(-4px); border-color: rgba(111,240,223,.30); }
.tech-group--wide { grid-column: span 2; }
.tech-group__title {
  font-size: 1.08rem; color: var(--ink); font-weight: 600; letter-spacing: -.01em;
  margin-bottom: 20px; font-family: "Space Grotesk"; display: flex; align-items: center; gap: 11px;
}
.tech-group__title::before {
  content: ""; flex: none;
  border-left: 6px solid transparent; border-right: 6px solid transparent;
  border-bottom: 10px solid var(--teal);
  filter: drop-shadow(0 0 6px rgba(35,194,189,.6));
}
.badges { display: flex; flex-wrap: wrap; gap: 12px; }
.badge {
  padding: 10px 20px; border-radius: 11px;
  font-family: "Space Grotesk"; font-size: .98rem; font-weight: 500;
  background: rgba(7, 28, 34, 0.5); border: 1px solid var(--glass-brd);
  transition: transform .35s var(--ease), border-color .35s var(--ease), color .35s var(--ease), box-shadow .35s var(--ease);
}
.badge:hover { transform: translateY(-4px); border-color: rgba(111,240,223,.5); color: var(--mint); box-shadow: 0 12px 30px -16px rgba(35,194,189,.7); }

/* ============================================================
   References
   ============================================================ */
.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 24px); }
.ref {
  padding: clamp(24px, 3vw, 32px); position: relative; overflow: hidden;
  transition: transform .5s var(--ease), border-color .5s var(--ease), box-shadow .5s var(--ease);
}
.ref:hover { transform: translateY(-6px); border-color: rgba(111,240,223,.34); box-shadow: var(--shadow); }
.ref__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.ref__flag { font-size: 1.8rem; }
.ref__years { font-family: "Space Grotesk"; font-size: .8rem; letter-spacing: .08em; color: var(--muted-2); padding: 5px 12px; border: 1px solid var(--line); border-radius: 999px; }
.ref h3 { font-size: 1.22rem; margin-bottom: 10px; }
.ref__client { color: var(--teal); font-size: .85rem; font-weight: 500; margin-bottom: 14px; }
.ref__txt { color: var(--muted); font-size: .92rem; }
.ref--confid { background: linear-gradient(135deg, rgba(35,194,189,.10), var(--glass-bg)); }

.partners { margin-top: clamp(40px, 6vw, 64px); text-align: center; }
.partners__label { color: var(--muted-2); font-size: .82rem; letter-spacing: .22em; text-transform: uppercase; margin-bottom: 22px; }
.partners__row { display: flex; flex-wrap: wrap; justify-content: center; gap: clamp(20px, 4vw, 52px); }
.partners__row span {
  font-family: "Space Grotesk"; font-size: clamp(1rem, 2vw, 1.3rem); font-weight: 500;
  color: var(--muted); opacity: .65; transition: opacity .3s, color .3s;
}
.partners__row span:hover { opacity: 1; color: var(--ink); }

/* ============================================================
   Footer / contact
   ============================================================ */
.footer { position: relative; z-index: 1; max-width: var(--maxw); margin-inline: auto; padding: clamp(60px, 9vw, 120px) clamp(20px, 5vw, 40px) 40px; }
.footer__cta { text-align: center; padding-bottom: clamp(50px, 8vw, 90px); border-bottom: 1px solid var(--line); margin-bottom: 60px; }
.footer__cta h2 { font-size: clamp(1.8rem, 5vw, 3.4rem); max-width: 760px; margin: 0 auto 36px; }
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 34px; border-radius: 999px; color: var(--bg);
  background: var(--grad); font-weight: 600; font-family: "Space Grotesk";
  box-shadow: 0 16px 40px -16px rgba(35,194,189,.8);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.btn svg { width: 20px; height: 20px; transition: transform .35s var(--ease); }
.btn:hover { transform: translateY(-3px); box-shadow: 0 22px 50px -16px rgba(35,194,189,.95); }
.btn:hover svg { transform: translateX(5px); }

.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 30px; margin-bottom: 50px; }
.footer__logo { height: 40px; margin-bottom: 18px; }
.footer__brand p { color: var(--muted); font-size: .92rem; }
.footer__col h4 { font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; color: var(--teal); margin-bottom: 14px; font-family: "Space Grotesk"; }
.footer__col p { color: var(--muted); font-size: .95rem; }
.footer__col a:hover { color: var(--mint); }
.footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 28px; border-top: 1px solid var(--line); color: var(--muted-2); font-size: .82rem; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 920px) {
  .cards-3 { grid-template-columns: 1fr; }
  .ref-grid { grid-template-columns: repeat(2, 1fr); }
  .exp-grid { grid-template-columns: repeat(2, 1fr); }
  .exp--wide { grid-column: span 2; }
  .stats { grid-template-columns: repeat(3, 1fr); gap: 30px 20px; }
  .stat:nth-child(4)::before, .stat:nth-child(n+4)::before { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .nav__links a:not(.nav__cta) { display: none; }
  .faces__grid { grid-template-columns: 1fr; }
  .tech-groups { grid-template-columns: 1fr; }
  .tech-group--wide { grid-column: span 1; }

  /* Ladder becomes a vertical, ascending timeline */
  .ladder { grid-template-columns: 1fr; align-items: stretch; gap: 14px; padding-left: 14px; }
  .ladder__track { left: 6px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
  .ladder__fill { width: 100%; height: 100%; transform: scaleY(0); transform-origin: top; }
  .ladder.in-view .ladder__fill { transform: scaleY(1); }
  .step { flex-direction: row; align-items: stretch; gap: 16px; padding-left: 18px; }
  .step__bar {
    height: auto !important; width: 6px; margin: 0; flex: none; border-radius: 6px;
    transform: scaleX(1) scaleY(0); transform-origin: top;
  }
  .step__bar::after { bottom: auto; top: 0; left: -2px; transform: none; }
  .step__body { flex: 1; }
}

@media (max-width: 560px) {
  .ref-grid { grid-template-columns: 1fr; }
  .exp-grid { grid-template-columns: 1fr; }
  .exp--wide { grid-column: span 1; grid-template-columns: 1fr; }
  .exp--wide .exp__idx { grid-row: auto; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat::before { display: none !important; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .hero__title .w { opacity: 1 !important; transform: none !important; }
  .step__bar { transform: none !important; }
  .ladder__fill { transform: scaleX(1) !important; }
  #neural { display: none; }
}