/* ==========================================================================
   Growth Creators by GCA Solutions — landing page
   --------------------------------------------------------------------------
   Layout unit: --u ≈ 1% of a 16:9 stage (1vw, capped by viewport height).
   Every desktop measurement is expressed in --u so each section keeps the
   composition of the reference boards at any desktop size.
   Below 1100px the page switches to a stacked layout with fixed units.
   ========================================================================== */

:root {
  --ink: #0e1b2a;
  --ink-2: #333e4d;
  --ink-3: #566070;
  --gold: #c68a3e;
  --gold-hi: #e8a652;
  --gold-lo: #b3772f;
  --gold-text: linear-gradient(92deg, #b6772e 0%, #d08f43 50%, #eba955 100%);
  --cream: #fcf8f2;
  --cream-rgb: 252, 248, 242;
  --paper: #fffdf9;
  --char: #242526;
  --hair: rgba(14, 27, 42, .12);

  --sans: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;

  --u: clamp(11.5px, min(1vw, 1.7778vh), 26px);
  --pad: calc(var(--u) * 4.8);
  --header-h: calc(var(--u) * 8);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--char);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
body.is-locked { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, figure { margin: 0; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
::selection { background: var(--gold); color: #fff; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
  width: 1em; height: 1em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.5;
  stroke-linecap: round; stroke-linejoin: round;
}
.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 100;
  padding: 10px 16px; border-radius: 8px; background: var(--ink); color: #fff; font-weight: 600;
  transition: top .2s;
}
.skip-link:focus { top: 16px; }

/* ── Type primitives ───────────────────────────────────────────────────── */
.display {
  font-size: calc(var(--u) * 4.45);
  font-weight: 780;
  line-height: .955;
  letter-spacing: -.052em;
  white-space: nowrap;
  color: var(--ink);
}
.display em, .eq-card__quote em {
  font-style: normal;
  color: var(--gold);
  background: var(--gold-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
  padding: 0 .05em .1em 0;
}
.display--xl { font-size: calc(var(--u) * 4.85); line-height: .96; }
.display--sm { font-size: calc(var(--u) * 3.95); line-height: .97; }

.eyebrow {
  display: flex; align-items: center; gap: calc(var(--u) * 1.2);
  font-size: max(11px, calc(var(--u) * .82));
  font-weight: 500;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--ink);
}
.eyebrow::before { content: ""; flex: none; width: calc(var(--u) * 2.4); height: 2px; background: var(--gold); }
.eyebrow--wide { letter-spacing: .38em; gap: calc(var(--u) * 1.3); }
.eyebrow--wide::before { width: calc(var(--u) * 3.1); }
.eyebrow--quiet { font-size: max(10px, calc(var(--u) * .74)); letter-spacing: .34em; color: var(--ink-2); }

.lead {
  font-size: max(15px, calc(var(--u) * 1.27));
  line-height: 1.36;
  color: var(--ink-2);
  text-wrap: pretty;
}

/* ── Button ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: calc(var(--u) * 1.8);
  padding: calc(var(--u) * 1.05) calc(var(--u) * 2.6) calc(var(--u) * 1.05) calc(var(--u) * 2.75);
  border-radius: 999px;
  font-size: max(15px, calc(var(--u) * 1.24));
  font-weight: 500;
  letter-spacing: -.01em;
  color: var(--ink);
  background: linear-gradient(180deg, #ecbc6c 0%, #d8a052 50%, #c98d40 100%);
  box-shadow:
    0 calc(var(--u) * 1.2) calc(var(--u) * 2.4) calc(var(--u) * -1.2) rgba(150, 96, 30, .7),
    inset 0 1px 0 rgba(255, 255, 255, .55),
    inset 0 -1px 0 rgba(120, 70, 10, .25);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), filter .35s;
}
.btn .icon { width: 1.45em; height: 1.45em; stroke-width: 1.5; transition: transform .35s var(--ease); }
.btn:hover { transform: translateY(-2px); filter: brightness(1.06) saturate(1.08); box-shadow: 0 calc(var(--u) * 1.8) calc(var(--u) * 2.8) calc(var(--u) * -1.2) rgba(150, 96, 30, .8), inset 0 1px 0 rgba(255, 255, 255, .65), inset 0 -1px 0 rgba(120, 70, 10, .25); }
.btn:hover .icon { transform: translateX(5px); }
.btn:active { transform: translateY(0); }

/* ── Mantras (small caps notes laid over the photography) ──────────────── */
.mantra {
  position: absolute;
  padding-left: calc(var(--u) * 1.6);
  border-left: 1px solid rgba(255, 255, 255, .8);
  font-size: max(11px, calc(var(--u) * .85));
  font-weight: 500;
  letter-spacing: .34em;
  line-height: 1.62;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 1px 2px rgba(30, 18, 0, .3), 0 0 18px rgba(30, 18, 0, .4);
}
.mantra--bare { border: 0; padding-left: 0; }
.mantra--bare::before, .mantra--bare::after { content: ""; position: absolute; left: 0; width: calc(var(--u) * 2.1); height: 2px; background: var(--gold-hi); }
.mantra--bare::before { top: calc(var(--u) * -1.35); }
.mantra--bare::after { bottom: calc(var(--u) * -1.45); }
.mantra--lead { border: 0; padding-left: calc(var(--u) * 4); }
.mantra--lead::before { content: ""; position: absolute; left: 0; top: .8em; width: calc(var(--u) * 2.6); height: 2px; background: var(--gold-hi); }
.mantra--ink { color: var(--ink); text-shadow: none; border-left: 2px solid var(--gold); }
.mantra--gold { border-left: 2px solid var(--gold-hi); }
.mantra--gold::after { content: ""; position: absolute; left: calc(var(--u) * 1.6); bottom: calc(var(--u) * -1.3); width: calc(var(--u) * 2.3); height: 2px; background: var(--gold-hi); }

/* ── Dark band (three brand promises) ──────────────────────────────────── */
.band {
  display: grid; grid-template-columns: repeat(3, 1fr); align-items: center;
  min-height: calc(var(--u) * 7.25);
  padding: 0 var(--pad);
  color: #fff;
}
.band li { display: flex; align-items: center; gap: calc(var(--u) * 1.5); min-height: calc(var(--u) * 3.1); padding-left: calc(var(--u) * 3.2); border-left: 1px solid rgba(255, 255, 255, .24); }
.band li:first-child { padding-left: 0; border-left: 0; }
.band li::before { content: ""; flex: none; width: calc(var(--u) * 2.6); height: 2px; background: var(--gold-hi); }
.band span { font-size: max(10.5px, calc(var(--u) * .85)); letter-spacing: .3em; line-height: 1.7; text-transform: uppercase; }
.band--icons { min-height: calc(var(--u) * 6.9); }
.band--icons li::before { align-self: flex-start; width: calc(var(--u) * 2.2); margin-right: calc(var(--u) * -.6); }
.band--icons .icon { width: calc(var(--u) * 2.6); height: calc(var(--u) * 2.6); stroke-width: 1.2; margin-right: calc(var(--u) * 1.1); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 60;
  display: flex; align-items: center;
  height: var(--header-h);
  padding: 0 var(--pad);
  color: var(--ink);
  transition: transform .55s var(--ease), height .4s var(--ease);
}
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0;
  background: rgba(var(--cream-rgb), .86);
  -webkit-backdrop-filter: blur(18px) saturate(1.4); backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--hair);
  box-shadow: 0 10px 30px -18px rgba(60, 40, 10, .35);
  transition: opacity .4s;
}
.site-header.is-solid { height: calc(var(--u) * 5.6); }
.site-header.is-solid::before { opacity: 1; }
.site-header.is-hidden { transform: translateY(-101%); }

.brand img { height: calc(var(--u) * 4.7); width: auto; transition: height .4s var(--ease); }
.site-header.is-solid .brand img { height: calc(var(--u) * 3.5); }
.brand__light { display: none; }
body.is-locked .brand__dark { display: none; }
body.is-locked .brand__light { display: block; }

.nav { margin-left: calc(var(--u) * 7.2); }
.nav ul { display: flex; gap: calc(var(--u) * 2.75); }
.nav a {
  position: relative; display: block; padding: .5em 0;
  font-size: max(14px, calc(var(--u) * 1)); font-weight: 500; color: var(--ink);
  transition: color .25s;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease);
}
.nav a:hover { color: var(--gold-lo); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.nav a.is-active { font-weight: 600; }

.parent-brand { display: flex; align-items: center; flex: none; margin-left: auto; transition: transform .3s var(--ease), opacity .25s; }
.parent-brand img { height: calc(var(--u) * 2.6); width: auto; }
.parent-brand__dark { display: none; }                       /* header transparent sur la photo : logo blanc */
.site-header.is-solid .parent-brand__light { display: none; } /* header sticky crème : logo bleu */
.site-header.is-solid .parent-brand__dark { display: block; }
.parent-brand:hover { transform: translateY(-1px); opacity: .85; }
.header-tag { margin-left: auto; display: flex; align-items: center; gap: calc(var(--u) * 4.2); color: #fff; transition: color .3s; }
.header-tag__rule { width: calc(var(--u) * 11.7); height: 2px; background: linear-gradient(90deg, var(--ink) 0 79%, var(--gold-hi) 79%); }
.header-tag p { font-size: max(10px, calc(var(--u) * .76)); letter-spacing: .3em; line-height: 1.95; text-transform: uppercase; text-align: right; text-shadow: 0 1px 10px rgba(20, 12, 0, .4); }
.header-tag i { font-style: normal; opacity: .75; margin: 0 .35em; }
.site-header.is-solid .header-tag { color: var(--ink); }
.site-header.is-solid .header-tag p { text-shadow: none; }

.burger { display: none; }

.mobile-menu {
  position: fixed; inset: 0; z-index: 55;
  display: flex; flex-direction: column; justify-content: center; gap: 36px;
  padding: 96px 28px 40px;
  color: #fff;
  background:
    radial-gradient(80% 50% at 100% 0%, rgba(198, 138, 62, .22), transparent 70%),
    linear-gradient(160deg, #2b2a29, #1a1b1d);
  animation: menu-in .45s var(--ease) both;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu nav { display: grid; gap: 6px; }
.mobile-menu nav a { font-size: clamp(2rem, 9vw, 3rem); font-weight: 700; letter-spacing: -.04em; line-height: 1.15; }
.mobile-menu nav a:hover { color: var(--gold-hi); }
.mobile-menu .btn { align-self: flex-start; }
.mobile-menu__tag { font-size: 11px; letter-spacing: .28em; text-transform: uppercase; opacity: .7; }
.mobile-menu__gca { display: inline-flex; align-items: center; gap: 14px; align-self: flex-start; padding: 10px 0; border-top: 1px solid rgba(255, 255, 255, .18); color: rgba(255, 255, 255, .7); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; }
.mobile-menu__gca img { height: 30px; width: auto; }
@keyframes menu-in { from { opacity: 0; transform: translateY(-12px); } }

/* ==========================================================================
   Slide sections (S01 · S02 · S03 · S07) — full-bleed photo, cream fade left
   ========================================================================== */
.slide { --bg: var(--cream); position: relative; isolation: isolate; display: flex; min-height: 100svh; overflow: hidden; background: var(--bg); color: var(--ink); }
.slide__media { position: absolute; inset: 0; z-index: -2; }
.slide__media img { width: 100%; height: 100%; object-fit: cover; object-position: var(--focus, 70% 50%); }
.slide__shade {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, var(--cream) 0%, rgba(var(--cream-rgb), .97) 20%, rgba(var(--cream-rgb), .86) 31%, rgba(var(--cream-rgb), .45) 43%, rgba(var(--cream-rgb), 0) 56%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 60%, rgba(0, 0, 0, .3) 78%, rgba(0, 0, 0, .08) 100%); mask-image: linear-gradient(180deg, #000 0%, #000 60%, rgba(0, 0, 0, .3) 78%, rgba(0, 0, 0, .08) 100%);
}
.slide__inner { position: relative; flex: 1; display: flex; align-items: center; padding: calc(var(--u) * 5) var(--pad) calc(var(--u) * 4); }
.slide--top .slide__inner { align-items: flex-start; padding-top: calc(var(--u) * 7.3); }
.slide__copy { flex: none; width: calc(var(--u) * 33.5); margin-left: calc(var(--u) * .3); }
.slide__copy > .eyebrow:first-child { margin-bottom: calc(var(--u) * 1.6); }
.slide__copy > .display { margin-bottom: calc(var(--u) * 2); }
.slide__copy > .btn { margin-top: calc(var(--u) * 2); }

/* ── S01 · Hero ────────────────────────────────────────────────────────── */
.hero { --focus: 78% 50%; }
.hero .slide__inner { padding-top: calc(var(--u) * 6.5); padding-bottom: calc(var(--u) * 11); }
.hero .display { font-size: calc(var(--u) * 4.2); margin-bottom: calc(var(--u) * 1.5); }
.hero .lead { font-size: max(15px, calc(var(--u) * 1.2)); line-height: 1.33; }
.hero .slide__media img { animation: settle 2.6s var(--ease) both; }
@keyframes settle { from { transform: scale(1.06); } }

.glass-stack { position: absolute; display: grid; gap: calc(var(--u) * .9); }
.hero__cards {
  left: 40.55%; top: 21.6%;
  grid-auto-flow: column; grid-template-rows: repeat(3, auto);
  grid-template-columns: calc(var(--u) * 14.8) calc(var(--u) * 15); column-gap: calc(var(--u) * 1.45);
}
.hero__cards li:nth-child(n+4) { position: relative; top: calc(var(--u) * 1.9); }
.glass {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center;
  gap: calc(var(--u) * 1.6);
  min-height: calc(var(--u) * 5.05);
  padding: calc(var(--u) * .6) calc(var(--u) * 1.2) calc(var(--u) * .6) calc(var(--u) * 1.5);
  border-radius: calc(var(--u) * .7);
  font-size: max(13.5px, calc(var(--u) * 1)); line-height: 1.32;
  color: var(--ink);
  background: linear-gradient(135deg, rgba(255, 255, 255, .8), rgba(255, 250, 243, .58));
  border: 1px solid rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: blur(16px) saturate(1.2); backdrop-filter: blur(16px) saturate(1.2);
  box-shadow: 0 calc(var(--u) * 1.5) calc(var(--u) * 2.8) calc(var(--u) * -1.7) rgba(90, 60, 20, .5), inset 0 1px 0 rgba(255, 255, 255, .9);
  transition: transform .4s var(--ease), background-color .3s, box-shadow .4s var(--ease);
}
.glass span { min-width: 0; }
.glass .icon { width: calc(var(--u) * 2.5); height: calc(var(--u) * 2.5); stroke-width: 1.35; }
.glass .icon--chev { width: calc(var(--u) * 1.35); height: calc(var(--u) * 1.35); stroke-width: 1.7; transition: transform .4s var(--ease), color .3s; }
.glass:hover { transform: translateX(calc(var(--u) * .4)); background-color: rgba(255, 255, 255, .5); }
.glass:hover .icon--chev { transform: translateX(3px); color: var(--gold-lo); }

.hero__mantra { left: 88.3%; top: 22.5%; }
.hero__band { position: absolute; inset: auto 0 0; z-index: 1; background: rgba(36, 37, 38, .9); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); }

.load { animation: rise 1.1s var(--ease) both; animation-delay: calc(var(--i, 0) * 95ms + 180ms); }
.load--right { animation-name: slide-in; }
@keyframes rise { from { opacity: 0; translate: 0 1.8rem; } }
@keyframes slide-in { from { opacity: 0; translate: 2.8rem 0; } }

/* ── S02 · Challenge — trois colonnes : sujet à gauche, copie au centre, douleurs à droite ── */
.challenge { --focus: 50% 50%; }
@media (min-width: 1100px) {
  .challenge .slide__shade {
    /* panneau de verre givré cadré sur la copie + les douleurs ; le sujet reste net */
    inset: 10% 3.7% 21% 37%;
    border-radius: calc(var(--u) * 1.1);
    background: linear-gradient(135deg, rgba(var(--cream-rgb), .58), rgba(var(--cream-rgb), .46));
    border: 1px solid rgba(255, 255, 255, .6);
    -webkit-backdrop-filter: blur(10px) saturate(1.05); backdrop-filter: blur(10px) saturate(1.05);
    box-shadow: 0 calc(var(--u) * 2.4) calc(var(--u) * 4.4) calc(var(--u) * -2) rgba(60, 40, 10, .35), inset 0 1px 0 rgba(255, 255, 255, .7);
  }
  .challenge .slide__copy { position: absolute; left: 39.5%; top: calc(var(--u) * 7.3); width: calc(var(--u) * 31); margin: 0; }
}
@media (min-width: 1100px) and (max-height: 720px) {
  .challenge .slide__shade { bottom: 15%; }   /* écrans bas : le panneau à 5 douleurs descend plus bas */
  .challenge .display { font-size: calc(var(--u) * 4.45); white-space: normal; }   /* se replie dans la colonne centrale */
}
.challenge .lead { max-width: calc(var(--u) * 32.8); }

.pain-panel {
  position: absolute; left: 72.2%; top: 12.2%;
  width: max(calc(var(--u) * 25.5), 330px);   /* plancher : sur un écran bas, --u rétrécit mais pas les polices */
  padding: calc(var(--u) * .5) calc(var(--u) * 1.75);
  border-radius: calc(var(--u) * 1.1);
  color: #fff;
  background: linear-gradient(170deg, rgba(42, 46, 50, .88), rgba(23, 25, 30, .95));
  border: 1px solid rgba(255, 255, 255, .2);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 calc(var(--u) * 2.4) calc(var(--u) * 4.4) calc(var(--u) * -1.8) rgba(10, 8, 4, .75), inset 0 1px 0 rgba(255, 255, 255, .14);
}
.pain-panel li { display: grid; grid-template-columns: auto 1fr; gap: calc(var(--u) * 1.6); padding: calc(var(--u) * 1.05) 0 calc(var(--u) * 1.1); border-bottom: 1px solid rgba(255, 255, 255, .13); }
.pain-panel li:last-child { border-bottom: 0; }
.pain-panel__icon { display: grid; place-items: center; width: calc(var(--u) * 4.4); height: calc(var(--u) * 4.4); margin-top: calc(var(--u) * .3); border-radius: 50%; background: rgba(255, 255, 255, .08); }
.pain-panel__icon .icon { width: calc(var(--u) * 2.4); height: calc(var(--u) * 2.4); stroke-width: 1.4; }
.pain-panel h3 { font-size: max(15px, calc(var(--u) * 1.13)); font-weight: 600; line-height: 1.22; }
.pain-panel p { margin-top: calc(var(--u) * .4); font-size: max(13px, calc(var(--u) * .96)); line-height: 1.32; color: rgba(255, 255, 255, .74); }
.challenge__mantra { left: calc(var(--u) * 2.4); top: 86.4%; }

/* ── S03 · Solution ────────────────────────────────────────────────────── */
.solution { --focus: 60% 50%; }
@media (min-width: 1100px) {
  /* décor abstrait sans scène basse : le contenu est centré verticalement */
  .solution .slide__inner { align-items: center; padding-top: calc(var(--u) * 6); padding-bottom: calc(var(--u) * 4); }
}
.solution .slide__copy { width: calc(var(--u) * 28.5); margin-left: 0; }
.solution .lead { font-size: max(15px, calc(var(--u) * 1.32)); }
.solution .slide__copy > .btn { margin-top: calc(var(--u) * 2.4); }
.solution__mantra { left: 88.8%; top: 7.6%; color: var(--ink); text-shadow: none; }   /* fond crème clair */

.equation {
  position: absolute; left: 34%; right: 3.5%; top: 17.9%;
  display: grid; grid-template-columns: 16.6fr 19.3fr 18.1fr; column-gap: calc(var(--u) * 4.3); align-items: start;
}
.eq-card {
  position: relative;
  padding: calc(var(--u) * 1.7) calc(var(--u) * 1.1) calc(var(--u) * 1.1);
  border-radius: calc(var(--u) * .9);
  background: linear-gradient(180deg, rgba(255, 252, 247, .84), rgba(252, 246, 238, .74));
  border: 1px solid rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  box-shadow: 0 calc(var(--u) * 2.4) calc(var(--u) * 5) calc(var(--u) * -2.6) rgba(80, 50, 15, .55);
}
.eq-card__title { margin: 0 calc(var(--u) * .5) calc(var(--u) * 1.4); font-size: max(10.5px, calc(var(--u) * .85)); font-weight: 500; letter-spacing: .32em; text-transform: uppercase; }
.eq-card__title::after { content: ""; display: block; width: calc(var(--u) * 2.2); height: 2px; margin-top: calc(var(--u) * .95); background: var(--gold); }
.eq-list li {
  display: grid; grid-template-columns: calc(var(--u) * 2.7) 1fr; gap: calc(var(--u) * 1.5); align-items: center;
  min-height: calc(var(--u) * 4.7);
  padding: calc(var(--u) * .4) calc(var(--u) * 1.2);
  border-radius: calc(var(--u) * .5);
  background: rgba(255, 255, 255, .52);
  border: 1px solid rgba(255, 255, 255, .78);
}
.eq-list li + li { margin-top: calc(var(--u) * .42); }
.eq-list--tall li { min-height: calc(var(--u) * 6.7); gap: calc(var(--u) * 2.3); padding-left: calc(var(--u) * 1.4); }
.eq-list .icon { width: calc(var(--u) * 2.7); height: calc(var(--u) * 2.7); stroke-width: 1.3; }
.eq-list strong { display: block; font-size: max(14.5px, calc(var(--u) * 1)); font-weight: 600; line-height: 1.2; }
.eq-list span { display: block; margin-top: calc(var(--u) * .15); font-size: max(12.5px, calc(var(--u) * .88)); line-height: 1.24; color: var(--ink-3); }
.eq-list--plain li { min-height: calc(var(--u) * 4.45); gap: calc(var(--u) * 1.5); padding-left: calc(var(--u) * 1.2); padding-right: calc(var(--u) * .6); }
.eq-list--plain span { margin: 0; font-size: max(14px, calc(var(--u) * .95)); line-height: 1.22; color: var(--ink); }
.eq-card__quote { margin: calc(var(--u) * 2.3) calc(var(--u) * .5) calc(var(--u) * 2); font-size: max(20px, calc(var(--u) * 1.78)); font-weight: 720; line-height: 1.07; letter-spacing: -.035em; }
.eq-card__quote b { font-weight: inherit; }
.eq-join { position: absolute; z-index: 2; right: calc(var(--u) * -3.65); top: calc(var(--u) * 12.4); translate: 0 -50%; display: grid; place-items: center; width: calc(var(--u) * 3); height: calc(var(--u) * 3); color: var(--gold); }
.eq-join .icon { width: calc(var(--u) * 2.2); height: calc(var(--u) * 2.2); stroke-width: 2.1; }
.eq-join--arrow { color: var(--gold-lo); filter: drop-shadow(0 1px 6px rgba(255, 255, 255, .7)); }
.eq-join--plus { border-radius: 50%; color: #fff; background: linear-gradient(160deg, #e2a552, #b9782f); box-shadow: 0 calc(var(--u) * .6) calc(var(--u) * 1.4) rgba(120, 72, 16, .45); }
.eq-join--plus .icon { width: calc(var(--u) * 1.6); height: calc(var(--u) * 1.6); stroke-width: 2.4; }

/* ── S07 · Final CTA ───────────────────────────────────────────────────── */
.final { --focus: 100% 50%; min-height: calc(100svh - var(--u) * 12.65); }
.final .slide__inner { padding-top: calc(var(--u) * 4.5); padding-bottom: calc(var(--u) * 5); }
.final .slide__copy { margin-left: 0; }
.final .lead { max-width: calc(var(--u) * 32.5); }

/* ==========================================================================
   Scene sections (S04 · S05) — full-bleed photo behind content set at the top
   ========================================================================== */
.scene { --bg: var(--cream); position: relative; isolation: isolate; min-height: 100svh; overflow: hidden; background: var(--bg); color: var(--ink); }
.scene__media { position: absolute; inset: 0; z-index: -2; }
.scene__media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 100%; }
.scene__shade { position: absolute; inset: 0; z-index: -1; }
.scene__inner { position: relative; }

/* ── S04 · Process ─────────────────────────────────────────────────────── */
.process .scene__shade {
  background:
    radial-gradient(62% 40% at 22% 12%, rgba(var(--cream-rgb), .96) 30%, rgba(var(--cream-rgb), 0) 100%),
    linear-gradient(180deg, rgba(var(--cream-rgb), .82) 0%, rgba(var(--cream-rgb), .6) 22%, rgba(var(--cream-rgb), .2) 38%, rgba(var(--cream-rgb), 0) 52%);
}
.process .scene__inner { padding: calc(var(--u) * 3.1) var(--pad) calc(var(--u) * 26) calc(var(--pad) + var(--u) * .45); }
.process__head .eyebrow { margin-bottom: calc(var(--u) * .9); }
.process__head .display { margin-bottom: calc(var(--u) * .9); }
.lead--wide { max-width: calc(var(--u) * 45.5); font-size: max(15px, calc(var(--u) * 1.17)); line-height: 1.3; }
.process__mantra { right: calc(var(--u) * 5.2); top: calc(var(--u) * 4); padding-block: calc(var(--u) * .2); }
.process__note-a { left: 5.5%; top: 65.3%; }
.process__note-b { left: 87.6%; top: 64%; }

.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: calc(var(--u) * 3.4); margin-top: calc(var(--u) * 1.9); }
.step {
  position: relative;
  min-height: calc(var(--u) * 13.4);
  padding: calc(var(--u) * 1.2) calc(var(--u) * .8) calc(var(--u) * 1.3) calc(var(--u) * 1.35);
  border-radius: calc(var(--u) * .6);
  background: linear-gradient(180deg, rgba(255, 253, 249, .86), rgba(253, 248, 241, .74));
  border: 1px solid rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 calc(var(--u) * 1.8) calc(var(--u) * 3.4) calc(var(--u) * -2) rgba(80, 50, 15, .45);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.step__num { display: block; font-size: max(24px, calc(var(--u) * 2.15)); font-weight: 300; line-height: 1.15; letter-spacing: -.01em; color: var(--gold); background: var(--gold-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; width: max-content; }
.step h3 { margin: calc(var(--u) * .55) 0 calc(var(--u) * .7); font-size: max(17px, calc(var(--u) * 1.45)); font-weight: 720; line-height: 1.12; letter-spacing: -.03em; }
.step p { font-size: max(13px, calc(var(--u) * .94)); line-height: 1.3; color: var(--ink-3); }
.step:not(:last-child)::after {
  content: ""; position: absolute; top: 48%; right: calc(var(--u) * -2.6);
  width: calc(var(--u) * 1.8); height: calc(var(--u) * 1.8); margin-top: calc(var(--u) * -.9);
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c68a3e' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 12h18'/%3E%3Cpath d='m14 5 7 7-7 7'/%3E%3C/svg%3E") center / contain no-repeat;
}
.step:hover { transform: translateY(calc(var(--u) * -.5)); box-shadow: 0 calc(var(--u) * 2.6) calc(var(--u) * 4) calc(var(--u) * -2) rgba(80, 50, 15, .6); }

/* ── S05 · Product ecosystem ───────────────────────────────────────────── */
.ecosystem .scene__shade { background: linear-gradient(180deg, rgba(var(--cream-rgb), .6) 0%, rgba(var(--cream-rgb), .25) 40%, rgba(var(--cream-rgb), 0) 62%); }
.ecosystem .scene__inner { padding: calc(var(--u) * 7) 0 calc(var(--u) * 15); }
.ecosystem__head { display: grid; grid-template-columns: 1fr auto; align-items: start; gap: calc(var(--u) * 3); padding: 0 calc(var(--u) * 9) 0 calc(var(--pad) + var(--u) * .2); }
.ecosystem__head .eyebrow { margin-bottom: calc(var(--u) * 1.9); }
.side-quote { position: relative; margin-top: calc(var(--u) * 2.4); padding: calc(var(--u) * .5) 0 calc(var(--u) * .3) calc(var(--u) * 3); border-left: 1px solid rgba(14, 27, 42, .75); max-width: calc(var(--u) * 22.5); }
.side-quote::before { content: ""; position: absolute; left: calc(var(--u) * 2.9); top: calc(var(--u) * -1.2); width: calc(var(--u) * 1.9); height: 3px; background: var(--gold-hi); }
.side-quote__lead { font-size: max(19px, calc(var(--u) * 1.62)); line-height: 1.14; letter-spacing: -.015em; color: var(--ink); max-width: 10.2em; }
.side-quote p + p { margin-top: calc(var(--u) * 1.1); font-size: max(13.5px, calc(var(--u) * 1)); line-height: 1.35; color: var(--ink-3); }

.products { display: grid; grid-template-columns: repeat(7, 1fr); gap: calc(var(--u) * .9); margin-top: calc(var(--u) * 3.3); padding: 0 calc(var(--u) * 3.5); }
.product figure {
  height: 100%; display: flex; flex-direction: column; overflow: hidden;
  border-radius: calc(var(--u) * .8);
  background: rgba(255, 252, 247, .92);
  border: 2px solid rgba(255, 255, 255, .92);
  box-shadow: 0 calc(var(--u) * 1.6) calc(var(--u) * 3.2) calc(var(--u) * -1.8) rgba(90, 60, 20, .45);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.product img { width: 100%; height: auto; aspect-ratio: 5 / 6; object-fit: cover; transition: transform 1.2s var(--ease); }
.product figcaption {
  position: relative; z-index: 1; flex: 1;
  display: flex; align-items: center; justify-content: center; text-align: center;
  min-height: calc(var(--u) * 3.6); padding: calc(var(--u) * .5) calc(var(--u) * .8);
  font-size: max(13.5px, calc(var(--u) * 1.12)); font-weight: 500; letter-spacing: -.01em; line-height: 1.15;
  background: #fffcf7;
}
.product:hover figure { transform: translateY(calc(var(--u) * -.6)); box-shadow: 0 calc(var(--u) * 2.6) calc(var(--u) * 4) calc(var(--u) * -1.8) rgba(90, 60, 20, .6); }
.product:hover img { transform: scale(1.06); }
.product:hover figcaption { color: var(--gold-lo); }

/* ==========================================================================
   S06 · Audience (light) & Why (dark photo panel)
   ========================================================================== */
.duo { position: relative; isolation: isolate; overflow: hidden; display: grid; grid-template-columns: 51.2% 1fr; min-height: 100svh; background: var(--cream); color: var(--ink); }
.duo__who { padding: calc(var(--u) * 4.4) calc(var(--u) * 2) calc(var(--u) * 4.2) calc(var(--u) * 5.3); background: radial-gradient(70% 50% at 0% 100%, rgba(233, 214, 186, .4), transparent 70%); }
.duo__who .eyebrow { margin-bottom: calc(var(--u) * 1.6); }
.duo__who .display { font-size: calc(var(--u) * 4.4); }
.duo__who .lead { margin-top: calc(var(--u) * 1.2); max-width: calc(var(--u) * 39); color: var(--ink-3); font-size: max(15px, calc(var(--u) * 1.25)); }

.personas { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(var(--u) * 1.4); margin: calc(var(--u) * 2) 0 0 calc(var(--u) * -.9); }
.persona {
  overflow: hidden;
  border-radius: calc(var(--u) * .55);
  background: var(--paper);
  border: 1px solid rgba(14, 27, 42, .08);
  box-shadow: 0 calc(var(--u) * 1.6) calc(var(--u) * 3.2) calc(var(--u) * -2.2) rgba(80, 50, 15, .4);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.persona img { width: 100%; height: auto; aspect-ratio: 1200 / 1040; object-fit: cover; transition: transform 1.2s var(--ease); }
.persona__body { position: relative; z-index: 1; padding: calc(var(--u) * 1.5) calc(var(--u) * 1) calc(var(--u) * 1.7); background: var(--paper); }
.persona h3 { font-size: max(16px, calc(var(--u) * 1.2)); font-weight: 700; line-height: 1.2; letter-spacing: -.02em; text-wrap: balance; }
.persona p { margin-top: calc(var(--u) * .9); font-size: max(13.5px, calc(var(--u) * 1.02)); line-height: 1.32; color: var(--ink-3); }
.persona:hover { transform: translateY(calc(var(--u) * -.5)); box-shadow: 0 calc(var(--u) * 2.4) calc(var(--u) * 3.8) calc(var(--u) * -2.2) rgba(80, 50, 15, .55); }
.persona:hover img { transform: scale(1.05); }
.duo__caption { margin-top: calc(var(--u) * 3); }

.duo__why { position: relative; isolation: isolate; color: #fff; padding: calc(var(--u) * 7.4) calc(var(--u) * 4) calc(var(--u) * 5) calc(var(--u) * 4.2); background: #1b1a1a; }
.duo__why-media { position: absolute; inset: 0; z-index: -2; }
.duo__why-media img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; }
.duo__why::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(24, 22, 21, .93) 0%, rgba(24, 22, 21, .8) 42%, rgba(24, 22, 21, .3) 74%, rgba(24, 22, 21, 0) 100%); }
.duo__why .display { color: #fff; text-shadow: 0 2px 30px rgba(0, 0, 0, .35); }
.duo__why .display em { background-image: linear-gradient(92deg, #d59c50 0%, #ecb465 100%); }
.duo__why .lead { margin-top: calc(var(--u) * 1.7); max-width: calc(var(--u) * 30.5); font-size: max(15px, calc(var(--u) * 1.2)); line-height: 1.42; color: rgba(255, 255, 255, .9); }

.proof { width: calc(var(--u) * 29.5); max-width: 100%; margin-top: calc(var(--u) * 1.6); }
.proof li { display: grid; grid-template-columns: calc(var(--u) * 3) calc(var(--u) * 10.6) 1fr; column-gap: calc(var(--u) * 1.6); align-items: center; padding: calc(var(--u) * 1.55) 0; border-bottom: 1px solid rgba(255, 255, 255, .22); }
.proof li:last-child { border-bottom: 0; }
.proof .icon { width: calc(var(--u) * 2.9); height: calc(var(--u) * 2.9); stroke-width: 1.3; }
.proof h3 { font-size: max(15px, calc(var(--u) * 1.2)); font-weight: 600; line-height: 1.25; }
.proof p { padding-left: calc(var(--u) * 1.3); border-left: 1px solid rgba(255, 255, 255, .5); font-size: max(13px, calc(var(--u) * .95)); line-height: 1.32; color: rgba(255, 255, 255, .84); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { color: #fff; background: linear-gradient(180deg, #2f2c29 0%, #272627 100%); }
.site-footer__bar { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: calc(var(--u) * 5.75); margin: 0 var(--pad); border-top: 1px solid rgba(255, 255, 255, .28); font-size: max(13px, calc(var(--u) * .86)); }
.site-footer__brand strong { display: block; font-size: max(13px, calc(var(--u) * .95)); font-weight: 700; letter-spacing: .3em; text-transform: uppercase; }
.site-footer__brand span { display: block; margin-top: .35em; font-size: max(9.5px, calc(var(--u) * .66)); letter-spacing: .42em; text-transform: uppercase; opacity: .8; }
.site-footer__nav { display: flex; align-items: center; }
.site-footer__nav > * + * { margin-left: calc(var(--u) * 1.3); padding-left: calc(var(--u) * 1.3); border-left: 1px solid rgba(255, 255, 255, .4); line-height: 1.1; }
.site-footer__nav a { transition: color .25s; }
.site-footer__nav a:hover { color: var(--gold-hi); }

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
html.js [data-reveal] {
  opacity: 0; translate: 0 1.6rem;
  transition: opacity .95s var(--ease), translate .95s var(--ease);
  transition-delay: calc(var(--i, 0) * 85ms);
}
html.js [data-reveal="right"] { translate: 2.6rem 0; }
html.js [data-reveal="up"] { translate: 0 2.8rem; }
html.js [data-reveal].is-in { opacity: 1; translate: 0 0; }

/* ==========================================================================
   Helpers shared by every layout
   ========================================================================== */
.slide__media picture, .scene__media picture { display: contents; }
.persona picture { display: block; }
.dots { display: none; }
.script { font-family: "La Belle Aurore", "Segoe Script", cursive; }
@media (min-width: 640px) { .only-m { display: none !important; } }
@media (max-width: 639px) { .only-d { display: none !important; } }

/* ==========================================================================
   Below 1100px — shared by tablet and phone
   ========================================================================== */
@media (max-width: 1099px) {
  :root { --u: 15px; --pad: clamp(20px, 5.5vw, 56px); --header-h: 76px; }

  .nav, .header-tag, .parent-brand { display: none; }   /* le logo GCA vit dans le menu burger */
  .site-header, .site-header.is-solid { height: var(--header-h); }
  .brand img, .site-header.is-solid .brand img { height: 46px; }
  .burger { display: grid; gap: 7px; margin-left: auto; padding: 14px 4px; }
  .burger span { display: block; width: 28px; height: 2px; background: var(--ink); transition: transform .4s var(--ease), background-color .3s; transform-origin: center; }
  .burger[aria-expanded="true"] span { background: #fff; }
  .burger[aria-expanded="true"] span:first-child { transform: translateY(4.5px) rotate(45deg); }
  .burger[aria-expanded="true"] span:last-child { transform: translateY(-4.5px) rotate(-45deg); }
  body.is-locked .site-header::before { opacity: 0; }

  .display, .display--xl, .hero .display, .challenge .display, .duo__who .display { font-size: clamp(2.3rem, 7.8vw, 4rem); line-height: 1; white-space: normal; text-wrap: balance; }
  .display--sm { font-size: clamp(2.1rem, 6.8vw, 3.4rem); white-space: normal; text-wrap: balance; }
  br.d { display: none; }
  .lead, .hero .lead, .solution .lead, .lead--wide, .duo__who .lead, .duo__why .lead { font-size: 1.08rem; line-height: 1.5; max-width: 40rem; }
  .eyebrow, .eyebrow--wide { font-size: 11.5px; letter-spacing: .28em; gap: 14px; }
  .eyebrow::before, .eyebrow--wide::before { width: 30px; }
  .eyebrow--quiet { font-size: 10.5px; letter-spacing: .24em; }
  .btn { padding: 17px 28px 17px 30px; font-size: 1.02rem; gap: 20px; }
  .mantra { display: none; }
  .step:not(:last-child)::after { display: none; }
  .hero__cards li:nth-child(n+4) { top: 0; }

  .band, .band--icons { grid-template-columns: 1fr; min-height: 0; padding: 12px var(--pad); }
  .band li, .band li:first-child { min-height: 0; gap: 18px; padding: 16px 0; border-left: 0; border-top: 1px solid rgba(255, 255, 255, .16); }
  .band li:first-child { border-top: 0; }
  .band li::before, .band--icons li::before { width: 30px; align-self: center; margin-right: 0; }
  .band span { font-size: 11px; letter-spacing: .26em; }
  .band span br { display: none; }
  .band--icons .icon { width: 34px; height: 34px; margin-right: 0; }
}

/* ==========================================================================
   Tablet (640–1099px) — stacked: copy, photo block, overlay cards
   ========================================================================== */
@media (min-width: 640px) and (max-width: 1099px) {
  .slide, .final { flex-direction: column; min-height: 0; }
  .slide__inner, .slide--top .slide__inner, .hero .slide__inner, .solution .slide__inner, .final .slide__inner { display: contents; }
  .slide__shade { display: none; }
  .slide__copy, .challenge .slide__copy, .solution .slide__copy { order: 1; width: auto; margin: 0; padding: 72px var(--pad) 44px; }
  .hero .slide__copy { padding-top: calc(var(--header-h) + 40px); }
  .slide__copy > .eyebrow:first-child { margin-bottom: 22px; }
  .slide__copy > .display { margin-bottom: 24px; }
  .slide__copy > .btn, .solution .slide__copy > .btn { margin-top: 30px; }

  .slide__media { position: relative; inset: auto; z-index: 0; order: 2; height: clamp(300px, 74vw, 620px); }
  .slide__media::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, var(--bg) 0%, rgba(var(--cream-rgb), 0) 32%); }
  .hero { --focus: 88% 50%; }
  .challenge { --focus: 22% 45%; }
  .solution { --focus: 70% 100%; }
  .final { --focus: 86% 50%; }

  .glass-stack, .pain-panel, .equation { position: relative; inset: auto; width: auto; z-index: 2; margin: 0 var(--pad); }
  .hero__cards { order: 3; margin-top: -84px; margin-bottom: 48px; grid-auto-flow: row; grid-template-rows: none; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 10px; }
  .glass { min-height: 68px; padding: 10px 16px 10px 18px; gap: 16px; border-radius: 12px; font-size: 15px; background: linear-gradient(135deg, rgba(255, 255, 255, .92), rgba(255, 250, 243, .8)); }
  .glass .icon { width: 34px; height: 34px; }
  .glass .icon--chev { width: 18px; height: 18px; }
  .hero__band { position: static; order: 5; }
  .band, .band--icons { grid-template-columns: repeat(3, 1fr); padding-block: 8px; }
  .band li, .band li:first-child { border-top: 0; padding: 18px 0 18px 20px; border-left: 1px solid rgba(255, 255, 255, .2); }
  .band li:first-child { padding-left: 0; border-left: 0; }
  .band span br { display: inline; }

  .pain-panel { order: 3; margin-top: -96px; margin-bottom: 64px; padding: 6px 22px; border-radius: 16px; }
  .pain-panel li { gap: 18px; padding: 20px 0; }
  .pain-panel__icon { width: 56px; height: 56px; margin-top: 2px; }
  .pain-panel__icon .icon { width: 30px; height: 30px; }
  .pain-panel h3 { font-size: 1.08rem; }
  .pain-panel p { margin-top: 6px; font-size: .95rem; }

  .equation { order: 3; grid-template-columns: 1fr; row-gap: 56px; margin-top: -96px; margin-bottom: 64px; }
  .eq-card { padding: 26px 16px 16px; border-radius: 14px; background: linear-gradient(180deg, rgba(255, 252, 247, .96), rgba(252, 246, 238, .92)); }
  .eq-card__title { margin: 0 8px 20px; font-size: 11.5px; }
  .eq-card__title::after { width: 32px; margin-top: 14px; }
  .eq-list li, .eq-list--tall li, .eq-list--plain li { grid-template-columns: 38px 1fr; gap: 18px; min-height: 72px; padding: 12px 18px; border-radius: 9px; }
  .eq-list li + li { margin-top: 7px; }
  .eq-list .icon { width: 38px; height: 38px; }
  .eq-list strong { font-size: 1.04rem; }
  .eq-list span { font-size: .92rem; }
  .eq-list--plain span { font-size: 1rem; }
  .eq-card__quote { margin: 26px 8px 24px; font-size: 1.7rem; }
  .eq-join { right: auto; left: 50%; top: auto; bottom: -50px; translate: -50% 0; width: 44px; height: 44px; }
  .eq-join .icon { width: 28px; height: 28px; }
  .eq-join--plus .icon { width: 22px; height: 22px; }
  .eq-join--arrow .icon { rotate: 90deg; }

  .scene { display: flex; flex-direction: column; min-height: 0; }
  .scene__shade { display: none; }
  .scene__inner, .process .scene__inner { order: 1; padding: 76px var(--pad) 0; }
  .scene__media { position: relative; inset: auto; z-index: 0; order: 2; height: 62vw; margin-top: -28px; -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 36%); mask-image: linear-gradient(180deg, transparent 0, #000 36%); }
  .process .scene__media img { object-position: 56% 100%; }
  .process__head .eyebrow, .process__head .display { margin-bottom: 22px; }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 36px; }
  .step { min-height: 0; padding: 16px 16px 20px; border-radius: 12px; background: linear-gradient(180deg, #fffdf9, #fcf6ee); }
  .step__num { font-size: 1.9rem; }
  .step h3 { margin: 6px 0 8px; font-size: 1.12rem; }
  .step p { font-size: .92rem; line-height: 1.38; }

  .ecosystem .scene__inner { padding: 76px 0 0; }
  .ecosystem__head { grid-template-columns: 1fr; gap: 40px; padding: 0 var(--pad); }
  .ecosystem__head .eyebrow { margin-bottom: 22px; }
  .side-quote { margin: 0; max-width: 26rem; padding: 2px 0 2px 22px; }
  .side-quote::before { left: 22px; top: -18px; width: 28px; }
  .side-quote__lead { font-size: 1.4rem; max-width: none; }
  .side-quote p + p { margin-top: 12px; font-size: 1rem; }
  .products { display: flex; gap: 12px; margin-top: 36px; padding: 6px var(--pad) 40px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--pad); scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .products::-webkit-scrollbar { display: none; }
  .product { flex: 0 0 min(62vw, 260px); scroll-snap-align: start; }
  .product figure { border-radius: 14px; }
  .product figcaption { min-height: 58px; padding: 8px 14px; font-size: 1.04rem; }
  .ecosystem .scene__media { height: 50vw; }

  .duo { grid-template-columns: 1fr; min-height: 0; }
  .duo__who { padding: 76px var(--pad) 64px; }
  .duo__who .eyebrow { margin-bottom: 22px; }
  .duo__who .lead { margin-top: 22px; }
  .personas { gap: 16px; margin: 36px 0 0; }
  .persona { border-radius: 12px; }
  .persona__body { padding: 18px 14px 20px; }
  .persona h3 { font-size: 1.08rem; }
  .persona p { margin-top: 10px; font-size: .94rem; }
  .duo__caption { margin-top: 40px; }
  .duo__why { padding: 72px var(--pad) 72px; }
  .duo__why::before { background: linear-gradient(180deg, rgba(24, 22, 21, .9) 0%, rgba(24, 22, 21, .8) 60%, rgba(24, 22, 21, .55) 100%); }
  .duo__why .lead { margin-top: 24px; }
  .proof { width: auto; margin-top: 28px; }
  .proof li { grid-template-columns: 40px 1fr; column-gap: 20px; row-gap: 8px; padding: 22px 0; align-items: start; }
  .proof .icon { width: 40px; height: 40px; grid-row: span 2; }
  .proof h3 { font-size: 1.12rem; }
  .proof p { grid-column: 2; padding-left: 0; border-left: 0; font-size: .98rem; }

  .final .slide__media { order: 0; height: clamp(260px, 62vw, 520px); }
  .final .slide__media::before { background: linear-gradient(180deg, rgba(var(--cream-rgb), 0) 55%, var(--bg) 100%); }
  .final .slide__copy { padding-top: 36px; padding-bottom: 72px; }
  .site-footer__bar { flex-direction: column; align-items: flex-start; gap: 20px; min-height: 0; padding: 28px 0 34px; }
  .site-footer__nav { flex-wrap: wrap; row-gap: 10px; }
  .site-footer__nav > * + * { margin-left: 16px; padding-left: 16px; }
}

/* ==========================================================================
   Phone (< 640px) — follows the "Second ref / Mobile" boards:
   portrait photo screens, swipe carousels with dots, check-list cards.
   Copy is identical to desktop.
   ========================================================================== */
@media (max-width: 639px) {
  :root { --pad: 24px; --header-h: 84px; }
  body { background: var(--cream); }
  .brand img { height: 50px; }
  .site-header.is-solid { height: 66px; }
  .site-header.is-solid .brand img { height: 40px; }

  .display, .display--xl, .display--sm, .hero .display, .challenge .display { font-size: clamp(1.95rem, 8.9vw, 2.75rem); line-height: 1.02; }
  .ecosystem .display, .duo__who .display { font-size: clamp(2.05rem, 9.6vw, 2.95rem); }
  .process .display { font-size: clamp(1.8rem, 8.2vw, 2.5rem); }
  .lead, .hero .lead, .solution .lead, .lead--wide, .duo__who .lead, .duo__why .lead, .final .lead, .challenge .lead { font-size: 1.04rem; line-height: 1.45; max-width: none; }
  .btn { font-weight: 600; }

  /* pagination dots */
  .dots { display: flex; justify-content: center; gap: 12px; margin-top: 18px; }
  .dots[hidden] { display: none; }
  .dots button { position: relative; width: 9px; height: 9px; border-radius: 50%; background: rgba(14, 27, 42, .2); transition: background-color .3s, transform .3s var(--ease); }
  .dots button::after { content: ""; position: absolute; inset: -12px -6px; }
  .dots button.is-active { background: var(--gold); transform: scale(1.3); }

  /* handwritten notes */
  .script { font-size: clamp(1.9rem, 8.6vw, 2.6rem); line-height: 1.12; text-align: center; color: var(--ink); rotate: -5deg; }
  .script::after { content: ""; display: block; width: 36%; height: 3px; margin: 16px auto 0; border-radius: 3px; rotate: -1deg; background: linear-gradient(90deg, rgba(198, 138, 62, 0), var(--gold) 18%, var(--gold-hi) 80%, rgba(232, 166, 82, 0)); }

  /* ── photo-backed screens (S01 · S02 · S03 · S07) ── */
  .slide, .final { min-height: max(100svh, 760px); }
  .hero, .challenge, .solution, .final { --focus: 50% 100%; }
  .slide__shade, .challenge .slide__shade {
    background: linear-gradient(180deg, rgba(var(--cream-rgb), .95) 0%, rgba(var(--cream-rgb), .9) 40%, rgba(var(--cream-rgb), .55) 55%, rgba(var(--cream-rgb), 0) 70%);
    -webkit-mask-image: none; mask-image: none;
  }
  .slide__inner, .slide--top .slide__inner, .hero .slide__inner, .solution .slide__inner, .final .slide__inner { flex-direction: column; align-items: stretch; padding: 76px 0 28px; }
  .hero .slide__inner { padding-top: calc(var(--header-h) + 22px); }
  .slide__copy, .challenge .slide__copy, .solution .slide__copy { width: auto; margin: 0; padding: 0 var(--pad); }
  .slide__copy > .eyebrow:first-child { margin-bottom: 18px; }
  .slide__copy > .display, .hero .display { margin-bottom: 18px; }
  .slide__copy > .btn, .solution .slide__copy > .btn { margin-top: 24px; }

  /* S01 — card carousel pinned to the bottom of the photo */
  .hero { min-height: max(100svh, 820px); }
  .hero__band { display: none; }
  .glass-stack, .hero__cards { position: static; display: flex; gap: 10px; width: auto; margin: auto 0 0; padding: 40px var(--pad) 4px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--pad); scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .hero__cards::-webkit-scrollbar { display: none; }
  .hero__cards li { flex: 0 0 calc((100% - 20px) / 3); scroll-snap-align: start; }
  .glass { grid-template-columns: 1fr; justify-items: center; align-content: center; text-align: center; gap: 10px; height: 100%; min-height: 116px; padding: 16px 6px 14px; border-radius: 14px; font-size: 13px; font-weight: 500; line-height: 1.25; background: linear-gradient(180deg, rgba(255, 253, 249, .95), rgba(252, 247, 240, .9)); }
  .glass .icon { width: 32px; height: 32px; }
  .glass .icon--chev { display: none; }
  .hero__dots { margin-top: 16px; }

  /* S02 — compact dark panel over the lower part of the photo */
  .challenge .slide__media { top: -18%; }   /* lifts the subject clear of the panel */
  .pain-panel { position: static; width: auto; margin: 60vw 20px 0 44px; padding: 4px 16px; border-radius: 16px; }
  .pain-panel li { gap: 14px; padding: 11px 0; align-items: start; }
  .pain-panel__icon { width: 40px; height: 40px; margin-top: 1px; border: 1px solid rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .04); }
  .pain-panel__icon .icon { width: 21px; height: 21px; }
  .pain-panel h3 { font-size: .98rem; font-weight: 600; }
  .pain-panel p { margin-top: 3px; font-size: .84rem; line-height: 1.3; }

  /* S03 — three check-list cards joined by gold arrows */
  .solution { min-height: 0; }
  .solution .slide__shade { background: rgba(var(--cream-rgb), .45); }
  .solution .slide__inner { padding: 72px var(--pad) 64px; }
  .solution .slide__copy { padding: 0; }
  .equation { position: static; grid-template-columns: 1fr; row-gap: 36px; margin-top: 34px; }
  .eq-card { display: grid; grid-template-columns: 29% 1fr; align-items: center; padding: 20px 16px 20px 0; border-radius: 20px; background: rgba(255, 253, 249, .88); }
  .eq-card__icon { justify-self: center; width: 46px; height: 46px; stroke-width: 1.4; }
  .eq-card__main { padding-left: 20px; border-left: 1px solid var(--hair); }
  .eq-card__title { margin: 0 0 10px; font-size: 11px; letter-spacing: .3em; }
  .eq-card__title::after { display: none; }
  .eq-list li, .eq-list--tall li, .eq-list--plain li { grid-template-columns: 19px 1fr; gap: 12px; align-items: start; min-height: 0; padding: 5px 0; border: 0; border-radius: 0; background: none; }
  .eq-list li + li { margin-top: 0; }
  .eq-list li::before { content: ""; width: 19px; height: 19px; margin-top: 2px; border-radius: 50%; background: var(--gold) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m7 12.5 3.3 3.3L17 9'/%3E%3C/svg%3E") center / 72% no-repeat; }
  .eq-list .icon { display: none; }
  .eq-list strong { font-size: 1.04rem; font-weight: 500; }
  .eq-list span { margin-top: 1px; font-size: .84rem; }
  .eq-list--plain span { margin: 0; font-size: .98rem; }
  .eq-card__quote { margin: 0 0 10px; font-size: 1.08rem; font-weight: 400; line-height: 1.35; letter-spacing: 0; }
  .eq-card__quote b { font-weight: 700; }
  .eq-join, .eq-join--arrow { right: auto; left: 50%; top: auto; bottom: -38px; translate: -50% 0; width: 40px; height: 40px; border-radius: 50%; color: #fff; filter: none; background: linear-gradient(160deg, #e2a552, #b9782f); box-shadow: 0 6px 14px rgba(120, 72, 16, .35); }
  .eq-join .icon, .eq-join--plus .icon { width: 20px; height: 20px; stroke-width: 2.2; }
  .solution .script { margin-top: 44px; }

  /* S04 — one step per view, swipe or tap the arrow */
  .scene { min-height: max(100svh, 760px); }
  .scene__media img { object-position: 50% 100%; }
  .process .scene__shade { background: linear-gradient(180deg, rgba(var(--cream-rgb), .92) 0%, rgba(var(--cream-rgb), .8) 45%, rgba(var(--cream-rgb), .3) 62%, rgba(var(--cream-rgb), 0) 74%); }
  .process .scene__inner { padding: 76px 0 clamp(230px, 40svh, 340px); }
  .process__head { padding: 0 var(--pad); }
  .process__head .eyebrow, .process__head .display { margin-bottom: 18px; }
  .steps { display: flex; gap: 14px; margin: 28px 0 0; padding: 6px 10% 16px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .steps::-webkit-scrollbar { display: none; }
  .step { flex: 0 0 100%; scroll-snap-align: center; min-height: 0; padding: 24px 82px 28px 26px; border-radius: 22px; background: rgba(255, 253, 249, .94); }
  .step__num { font-size: 1.2rem; font-weight: 700; letter-spacing: .02em; }
  .step__num::after { content: " / 06"; font-weight: 400; color: var(--ink); -webkit-text-fill-color: var(--ink); }
  .step__icon { display: block; width: 46px; height: 46px; margin: 14px 0 12px; stroke-width: 1.3; }
  .step h3 { margin: 0 0 8px; font-size: 1.4rem; }
  .step p { font-size: 1.04rem; line-height: 1.4; color: var(--ink-2); }
  .step__next { position: absolute; right: 16px; top: 50%; translate: 0 -50%; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; color: var(--gold-lo); background: #fff; box-shadow: 0 8px 22px rgba(80, 50, 15, .2); }
  .step__next .icon { width: 24px; height: 24px; stroke-width: 2.2; }
  html.js .steps [data-reveal], html.js .personas [data-reveal] { opacity: 1; translate: none; transition: none; }

  /* S05 — 3 + 4 mosaic on plain cream */
  .ecosystem { min-height: 0; }
  .ecosystem .scene__media, .ecosystem .scene__shade { display: none; }
  .ecosystem .scene__inner { padding: 72px 0 64px; }
  .ecosystem__head { display: block; padding: 0 var(--pad); }
  .ecosystem__head .eyebrow { margin-bottom: 18px; }
  .side-quote { margin: 20px 0 0; max-width: none; padding: 0; border: 0; }
  .side-quote::before { display: none; }
  .side-quote__lead { max-width: none; font-size: 1.15rem; line-height: 1.35; color: var(--ink-2); }
  .side-quote p + p { margin-top: 10px; font-size: 1.02rem; line-height: 1.45; }
  .products { grid-template-columns: repeat(12, 1fr); gap: 12px 8px; margin-top: 30px; padding: 0 14px; }
  .product { grid-column: span 4; }
  .product:nth-child(n+4) { grid-column: span 3; }
  .product figure { border-width: 1px; border-radius: 12px; }
  .product figcaption { min-height: 42px; padding: 6px 3px; font-size: 12.5px; }
  .product:nth-child(n+4) figcaption { min-height: 40px; font-size: 11px; }
  .closing { margin-top: 46px; text-align: center; font-size: 1.12rem; letter-spacing: .14em; line-height: 1.45; color: var(--ink); }
  .closing::before { content: ""; display: block; width: 34px; height: 2px; margin: 0 auto 18px; background: var(--gold); }

  /* S06 — personas carousel on a soft shadow texture */
  .duo { display: block; min-height: 0; }
  .duo__who { padding: 72px var(--pad) 60px; background: var(--cream) url("../img/texture-m.jpg") center / cover no-repeat; }
  .duo__who .eyebrow { margin-bottom: 18px; }
  .duo__who .lead { margin-top: 18px; color: var(--ink-2); }
  .personas { display: flex; gap: 14px; margin: 30px calc(var(--pad) * -1) 0; padding: 6px var(--pad) 14px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--pad); scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .personas::-webkit-scrollbar { display: none; }
  .persona { flex: 0 0 74%; scroll-snap-align: start; border-radius: 14px; }
  .persona img { aspect-ratio: 4 / 5; }
  .persona__body { padding: 18px 18px 22px; }
  .persona h3 { font-size: 1.16rem; }
  .persona p { margin-top: 8px; font-size: 1rem; line-height: 1.4; }
  .duo__who .script { margin-top: 46px; }

  /* S06b — why: dark ink screen, two columns of icon rows */
  .duo__why { padding: 76px var(--pad) 68px; background: linear-gradient(165deg, #182536 0%, #0f1a29 55%, #0b131f 100%); }
  .duo__why-media, .duo__why::before { display: none; }
  .duo__why .lead { margin-top: 20px; }
  .proof { width: auto; margin-top: 30px; }
  .proof li { grid-template-columns: 48px 1fr 48px 1fr; column-gap: 11px; padding: 20px 0; border-bottom-color: rgba(255, 255, 255, .14); }
  .proof .icon { width: 48px; height: 48px; padding: 12px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .2); background: rgba(255, 255, 255, .03); stroke-width: 1.5; }
  .proof .proof__icon-b { color: var(--gold-hi); }
  .proof h3 { font-size: .95rem; line-height: 1.25; }
  .proof p { padding-left: 0; border-left: 0; font-size: .86rem; line-height: 1.32; }
  .why__tag { position: relative; margin-top: 56px; padding-top: 26px; font-size: 11.5px; letter-spacing: .4em; line-height: 2.3; text-transform: uppercase; color: #fff; }
  .why__tag::before { content: ""; position: absolute; left: 0; top: 0; width: 34px; height: 2px; background: var(--gold-hi); }
  .why__tag i { font-style: normal; color: var(--gold-hi); margin: 0 .5em; }

  /* S07 + footer */
  .final .slide__inner { padding-bottom: 0; }
  .site-footer { color: var(--ink); text-align: center; background: var(--cream) url("../img/texture-m.jpg") center / cover no-repeat; }
  .band--icons { color: #fff; text-align: left; background: linear-gradient(180deg, #2f2c29 0%, #272627 100%); }
  .footer-m { padding: 88px var(--pad) 0; }
  .footer-m img { width: min(80%, 310px); height: auto; margin: 0 auto; }
  .footer-m__tag { margin-top: 30px; font-size: 1.28rem; line-height: 1.4; }
  .socials { display: flex; justify-content: center; gap: 30px; margin-top: 42px; }
  .socials a { display: block; width: 30px; height: 30px; color: var(--ink); transition: color .25s; }
  .socials a:hover { color: var(--gold-lo); }
  .socials svg { display: block; width: 100%; height: 100%; }
  .site-footer__bar { flex-direction: column; align-items: center; gap: 0; min-height: 0; margin: 52px var(--pad) 0; padding: 0 0 72px; border-top: 0; font-size: 1rem; }
  .site-footer__bar::before { content: ""; width: 48px; height: 2px; margin-bottom: 34px; background: var(--gold); }
  .site-footer__nav { flex-wrap: wrap; justify-content: center; row-gap: 22px; }
  .site-footer__nav > * + * { margin-left: 20px; padding-left: 20px; border-left-color: rgba(14, 27, 42, .45); }
  .site-footer__nav > span { flex-basis: 100%; margin-left: 0; padding-left: 0; border-left: 0; line-height: 1.45; }
}

@media (max-width: 380px) {
  .btn { padding: 15px 20px 15px 22px; gap: 12px; font-size: .95rem; white-space: nowrap; }
  .pain-panel { margin-left: 28px; }
  .proof li { grid-template-columns: 42px 1fr 42px 1fr; column-gap: 9px; }
  .proof .icon { width: 42px; height: 42px; padding: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  html.js [data-reveal] { opacity: 1; translate: 0 0; }
}