/* ==========================================================================
   VISE — Design system
   Look & feel : off-white chaud · grotesque tendue · labels mono techniques
   Primaire : bleu du logo. Motif : triangle ▼.
   ========================================================================== */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;450;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ---------- Tokens ---------- */
:root {
  /* Surfaces — off-white chaud comme le mockup */
  --bg:            #F4F1EB;
  --bg-warm:       #EDE9E0;
  --surface:       #FFFFFF;
  --surface-2:     #FBFAF7;

  /* Encre — navy quasi-noir du logo */
  --ink:           #0E1726;
  --ink-soft:      #3C4658;
  --muted:         #6E7787;
  --muted-2:       #9AA0AB;

  /* Lignes */
  --line:          #E3DED4;
  --line-strong:   #D3CCBE;

  /* Bleu primaire — couleur du logo */
  --primary:       #2E51D6;
  --primary-strong:#2541B4;
  --primary-deep:  #1B2E7A;
  --primary-tint:  #EAEFFE;
  --primary-tint-2:#DCE4FD;

  /* Sections sombres */
  --dark:          #0B1320;
  --dark-2:        #111D31;
  --dark-line:     rgba(255,255,255,.10);
  --on-dark:       #EEF1F7;
  --on-dark-soft:  #A8B2C4;

  /* Type */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;

  /* Rythme */
  --container: 1200px;
  --gutter: clamp(1.25rem, 4vw, 2.75rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);
  --radius: 14px;
  --radius-lg: 22px;
  --radius-sm: 9px;

  /* Ombres */
  --shadow-sm: 0 1px 2px rgba(14,23,38,.05), 0 2px 8px rgba(14,23,38,.04);
  --shadow:    0 8px 30px rgba(14,23,38,.08), 0 2px 8px rgba(14,23,38,.04);
  --shadow-lg: 0 24px 70px rgba(14,23,38,.16), 0 6px 18px rgba(14,23,38,.07);
  --shadow-blue: 0 14px 40px rgba(46,81,214,.28);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv05" 1, "ss01" 1;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
input, textarea, select { font: inherit; color: inherit; }
ul { list-style: none; padding: 0; }

::selection { background: var(--primary); color: #fff; }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.container--wide { max-width: 1320px; }
.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

.grid { display: grid; gap: clamp(1.25rem, 3vw, 2rem); }

/* ---------- Typo ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
}
.eyebrow::before {
  content: "";
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 7px solid var(--primary);
}
.eyebrow--plain::before { display: none; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.05; letter-spacing: -.02em; color: var(--ink); }

.display {
  font-size: clamp(2.7rem, 6.2vw, 5rem);
  line-height: 1.0;
  letter-spacing: -.035em;
}
.h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); letter-spacing: -.028em; }
.h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); letter-spacing: -.02em; }
.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  line-height: 1.55;
  color: var(--ink-soft);
  font-weight: 450;
}
.measure { max-width: 60ch; }
.measure-sm { max-width: 46ch; }
.text-muted { color: var(--ink-soft); }
.accent { color: var(--primary); }

p + p { margin-top: 1.1rem; }

/* ==========================================================================
   Brand / logo
   ========================================================================== */
.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.45rem;
  letter-spacing: .26em;
  color: var(--ink);
  line-height: 1;
  position: relative;
}
.brand__word { position: relative; padding-left: .04em; }
.brand__tri {
  position: absolute;
  top: -.46em;
  left: .12em;          /* posé au-dessus du V */
  width: 0; height: 0;
  border-left: .30em solid transparent;
  border-right: .30em solid transparent;
  border-top: .36em solid var(--primary);
}
.brand:hover .brand__tri { filter: brightness(1.08); }
.brand--light { color: #fff; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.site-header.is-stuck {
  border-bottom-color: var(--line);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 74px;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1.4rem, 3vw, 2.6rem);
  margin-left: auto;
}
.nav__link {
  font-size: .95rem;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding: .3rem 0;
  transition: color .18s ease;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 1.5px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s ease;
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--ink); }

.nav__toggle { display: none; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  --btn-pad-y: .82rem;
  --btn-pad-x: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: var(--btn-pad-y) var(--btn-pad-x);
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: -.01em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,.12) inset, var(--shadow-blue);
}
.btn--primary:hover { background: var(--primary-strong); box-shadow: 0 18px 44px rgba(46,81,214,.34); transform: translateY(-1px); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--ink); background: rgba(14,23,38,.03); }

.btn--text {
  padding-inline: 0;
  color: var(--ink);
  background: none;
  font-weight: 600;
}
.btn--text .arrow { transition: transform .2s ease; }
.btn--text:hover .arrow { transform: translateX(4px); }
.btn--text:hover { color: var(--primary); }

.btn--lg { --btn-pad-y: 1.02rem; --btn-pad-x: 1.9rem; font-size: 1rem; }
.btn--on-dark.btn--ghost { color: #fff; border-color: rgba(255,255,255,.28); }
.btn--on-dark.btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,.06); }

.btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.4rem; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; padding-top: clamp(2.5rem, 5vw, 4rem); padding-bottom: var(--section-y); overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
}
/* fine blueprint grid + warm gradient */
.hero__bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 100% 0%, var(--primary-tint) 0%, transparent 55%),
    linear-gradient(180deg, transparent 0%, var(--bg) 90%);
  opacity: .9;
}
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(14,23,38,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14,23,38,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(75% 70% at 78% 30%, #000 0%, transparent 78%);
          mask-image: radial-gradient(75% 70% at 78% 30%, #000 0%, transparent 78%);
}
.hero__inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero__title { margin-top: 1.4rem; }
.hero__title .accent { color: var(--primary); }
.hero__sub { margin-top: 1.6rem; max-width: 42ch; }
.hero__cta { margin-top: 2.2rem; }
.hero__note { margin-top: 1.5rem; font-size: .9rem; color: var(--muted); }

/* ---------- Process timeline (hero + méthode) ---------- */
.timeline {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.timeline::after {
  content: "";
  position: absolute; top: 0; right: 0;
  width: 140px; height: 140px;
  background: radial-gradient(circle at 100% 0%, var(--primary-tint) 0%, transparent 70%);
  pointer-events: none;
}
.timeline__head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.6rem; position: relative; z-index: 1;
}
.timeline__head span { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.steps { position: relative; z-index: 1; }
.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  padding: 1.15rem 0;
  position: relative;
}
.step + .step { border-top: 1px solid var(--line); }
.step__icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--primary-tint);
  color: var(--primary);
  border: 1px solid var(--primary-tint-2);
  flex-shrink: 0;
}
.step__icon svg { width: 22px; height: 22px; }
.step__num { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .15em; color: var(--primary); font-weight: 600; }
.step__title { font-family: var(--font-display); font-weight: 600; font-size: 1.08rem; letter-spacing: -.01em; margin-top: .15rem; }
.step__meta { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-top: .35rem; }
.step__desc { color: var(--ink-soft); font-size: .95rem; margin-top: .3rem; }

/* connecting rail */
.steps--rail .step::before {
  content: ""; position: absolute; left: 22px; top: 0; bottom: 0;
  width: 2px; background: var(--line);
}
.steps--rail .step:first-child::before { top: 1.15rem; }
.steps--rail .step:last-child::before { bottom: calc(100% - 1.15rem - 46px); }

/* ==========================================================================
   Section heading block
   ========================================================================== */
.section-head { max-width: 62ch; }
.section-head .h2 { margin-top: 1rem; }
.section-head .lead { margin-top: 1.1rem; }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }

/* ==========================================================================
   "Le constat" — split statement
   ========================================================================== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.statement {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 2.7vw, 2.3rem);
  line-height: 1.18;
  letter-spacing: -.025em;
}
.statement .accent { color: var(--primary); }

/* ==========================================================================
   Cards / feature grids
   ========================================================================== */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 2.4vw, 2rem);
  transition: transform .2s ease, box-shadow .25s ease, border-color .2s ease;
  position: relative;
  height: 100%;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.card__num {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--primary);
  font-weight: 600;
}
.card__icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--primary-tint);
  color: var(--primary);
  margin-bottom: 1.1rem;
}
.card__icon svg { width: 24px; height: 24px; }
.card .h3 { margin-top: .3rem; }
.card p { margin-top: .6rem; color: var(--ink-soft); font-size: .98rem; }

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* feature list (copilote) */
.feature-list { display: grid; gap: 0; }
.feature {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  padding: 1.3rem 0;
  border-top: 1px solid var(--line);
  align-items: start;
}
.feature:first-child { border-top: 0; }
.feature__mark {
  margin-top: .35rem;
  width: 0; height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 9px solid var(--primary);
  flex-shrink: 0;
}
.feature strong { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; letter-spacing: -.01em; }
.feature span { color: var(--ink-soft); }

/* ==========================================================================
   Pull quote
   ========================================================================== */
.pullquote {
  position: relative;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(2.4rem, 5vw, 4rem);
  overflow: hidden;
}
.pullquote__tri {
  position: absolute; right: clamp(1.5rem,4vw,3rem); top: clamp(1.5rem,4vw,2.5rem);
  width: 0; height: 0;
  border-left: 26px solid transparent;
  border-right: 26px solid transparent;
  border-top: 32px solid var(--primary);
  opacity: .85;
}
.pullquote p {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.25;
  letter-spacing: -.025em;
  max-width: 22ch;
}
.pullquote em { color: var(--primary); font-style: normal; }

/* ==========================================================================
   Anti-positionnement
   ========================================================================== */
.anti-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.25rem, 3vw, 2rem); }
.anti {
  padding: 1.6rem 0;
  border-top: 2px solid var(--ink);
}
.anti__no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--primary);
  display: inline-flex; align-items: center; gap: .5rem;
  margin-bottom: .8rem;
}
.anti strong { font-family: var(--font-display); font-weight: 600; font-size: 1.2rem; letter-spacing: -.015em; display: block; }
.anti p { color: var(--ink-soft); margin-top: .4rem; font-size: .98rem; }

/* ==========================================================================
   Dark / CTA section
   ========================================================================== */
.dark-section {
  background: var(--dark);
  color: var(--on-dark);
  position: relative;
  overflow: hidden;
}
.dark-section .eyebrow { color: #7E97F2; }
.dark-section .eyebrow::before { border-top-color: #7E97F2; }
.dark-section h2 { color: #fff; }
.dark-section .lead { color: var(--on-dark-soft); }
.dark-section__glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(60% 80% at 85% 10%, rgba(46,81,214,.32) 0%, transparent 60%),
    radial-gradient(50% 60% at 0% 100%, rgba(46,81,214,.18) 0%, transparent 60%);
}
.dark-section__grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 60px 60px;
  -webkit-mask-image: radial-gradient(80% 80% at 50% 0%, #000, transparent 80%);
          mask-image: radial-gradient(80% 80% at 50% 0%, #000, transparent 80%);
}
.cta-final { position: relative; z-index: 1; text-align: center; max-width: 56ch; margin-inline: auto; }
.cta-final .h2 { margin-top: 1rem; }
.cta-final .lead { margin-top: 1.2rem; }
.cta-final .btn-row { justify-content: center; margin-top: 2rem; }

/* ==========================================================================
   Reversibilité / values rows
   ========================================================================== */
.value-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.25rem, 3vw, 2.4rem);
}
.value {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1.4rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.value__tri {
  margin-top: .35rem; flex-shrink: 0;
  width: 0; height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 9px solid var(--primary);
}
.value strong { font-family: var(--font-display); font-weight: 600; }
.value p { color: var(--ink-soft); margin-top: .3rem; font-size: .96rem; }

/* ==========================================================================
   Méthode — phase blocks
   ========================================================================== */
.phase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.phase + .phase { margin-top: clamp(3.5rem, 7vw, 6rem); padding-top: clamp(3.5rem, 7vw, 6rem); border-top: 1px solid var(--line); }
.phase__index {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3.5rem, 8vw, 6rem);
  line-height: .9;
  letter-spacing: -.04em;
  color: var(--primary);
  -webkit-text-stroke: 0;
}
.phase__sticky { position: sticky; top: 110px; }
.phase__kicker { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .2em; text-transform: uppercase; color: var(--primary); margin-bottom: 1rem; display: block; }
.phase__title { font-size: clamp(1.6rem, 3vw, 2.3rem); margin-bottom: 1.2rem; }
.phase p { color: var(--ink-soft); }

.deliverables { margin-top: 1.8rem; }
.deliverables h4 { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink); margin-bottom: 1rem; font-weight: 600; }
.deliverables li {
  display: grid; grid-template-columns: auto 1fr; gap: .85rem;
  padding: .7rem 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: .98rem;
  align-items: start;
}
.deliverables li::before {
  content: ""; margin-top: .45rem;
  width: 0; height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid var(--primary);
}
.meta-row {
  display: flex; flex-wrap: wrap; gap: 1rem 2rem;
  margin-top: 1.8rem; padding-top: 1.5rem; border-top: 2px solid var(--ink);
}
.meta-item .meta-k { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .15em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: .3rem; }
.meta-item .meta-v { font-weight: 500; }
.meta-item--out { flex: 1 1 60%; }
.meta-item--out .meta-v { color: var(--ink-soft); font-weight: 400; }

/* ==========================================================================
   Cas d'usage — alternating rows
   ========================================================================== */
.usecase {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(2.2rem, 4vw, 3rem) 0;
  border-top: 1px solid var(--line);
}
.usecase:first-of-type { border-top: 0; }
.usecase__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--primary-tint) 0%, var(--surface) 100%);
  border: 1px solid var(--line);
  display: grid; place-items: center;
  overflow: hidden;
}
.usecase__visual .uc-icon { width: 72px; height: 72px; color: var(--primary); position: relative; z-index: 1; }
.usecase__visual::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(46,81,214,.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46,81,214,.08) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(70% 70% at 50% 50%, #000, transparent 75%);
          mask-image: radial-gradient(70% 70% at 50% 50%, #000, transparent 75%);
}
.usecase__num { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .18em; color: var(--primary); font-weight: 600; }
.usecase__title { font-size: clamp(1.5rem, 2.6vw, 2rem); margin: .6rem 0 1.4rem; }
.uc-block { margin-top: 1.3rem; }
.uc-block .uc-label {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); display: inline-flex; align-items: center; gap: .5rem; margin-bottom: .45rem;
}
.uc-block .uc-label::before {
  content:""; width: 14px; height: 2px; background: var(--primary);
}
.uc-block p { color: var(--ink-soft); }
.uc-block--result p { color: var(--ink); font-weight: 450; }

.usecase:nth-child(even) .usecase__visual { order: 2; }

/* ==========================================================================
   Diagnostic — list + form
   ========================================================================== */
.deliver-list { display: grid; gap: 0; max-width: 60ch; }
.deliver-list li {
  display: grid; grid-template-columns: auto 1fr; gap: 1rem;
  padding: 1.15rem 0; border-top: 1px solid var(--line);
  font-size: 1.05rem; align-items: start;
}
.deliver-list li:first-child { border-top: 0; }
.deliver-list li .dl-tri {
  margin-top: .5rem;
  width: 0; height: 0;
  border-left: 7px solid transparent; border-right: 7px solid transparent;
  border-top: 9px solid var(--primary);
}

.steps-num { counter-reset: stp; display: grid; gap: 1.2rem; }
.steps-num li {
  display: grid; grid-template-columns: auto 1fr; gap: 1.2rem; align-items: start;
}
.steps-num li::before {
  counter-increment: stp; content: counter(stp);
  font-family: var(--font-display); font-weight: 700; font-size: 1.05rem;
  width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--primary); color: #fff; flex-shrink: 0;
}
.steps-num li p { margin: 0; padding-top: .45rem; color: var(--ink-soft); }
.steps-num li p strong { color: var(--ink); font-weight: 600; }

/* who-for */
.audience {
  background: var(--bg-warm);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 4vw, 3rem);
}

/* Form */
.form-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 4vw, 3rem);
  box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem 1.4rem; }
.field { display: flex; flex-direction: column; gap: .5rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: .9rem; font-weight: 500; color: var(--ink); }
.field label .req { color: var(--primary); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: .85rem 1rem;
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--primary-tint);
}
.form-foot { margin-top: 1.6rem; display: flex; flex-direction: column; gap: 1rem; align-items: flex-start; }
.form-note { font-size: .85rem; color: var(--muted); }
.form-success {
  display: none;
  padding: 1.1rem 1.3rem;
  background: var(--primary-tint);
  border: 1px solid var(--primary-tint-2);
  border-radius: var(--radius-sm);
  color: var(--primary-deep);
  font-weight: 500;
  align-items: center; gap: .7rem;
}
.form-success.is-visible { display: flex; }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq { max-width: 760px; }
.faq__item { border-top: 1px solid var(--line); }
.faq__item:last-child { border-bottom: 1px solid var(--line); }
.faq__q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  padding: 1.4rem 0;
  font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; letter-spacing: -.015em;
  text-align: left; color: var(--ink);
}
.faq__icon { position: relative; width: 18px; height: 18px; flex-shrink: 0; }
.faq__icon::before, .faq__icon::after {
  content: ""; position: absolute; background: var(--primary);
  transition: transform .25s ease, opacity .2s ease;
}
.faq__icon::before { top: 8px; left: 0; width: 18px; height: 2px; }
.faq__icon::after  { left: 8px; top: 0; width: 2px; height: 18px; }
.faq__item.is-open .faq__icon::after { transform: scaleY(0); }
.faq__a { overflow: hidden; max-height: 0; transition: max-height .3s ease; }
.faq__a-inner { padding: 0 0 1.4rem; color: var(--ink-soft); max-width: 64ch; }

/* ==========================================================================
   Page hero (sous-pages)
   ========================================================================== */
.page-hero { padding-top: clamp(3rem, 6vw, 5rem); padding-bottom: clamp(2.5rem, 5vw, 4rem); position: relative; overflow: hidden; }
.page-hero__grid {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(to right, rgba(14,23,38,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14,23,38,.045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(70% 100% at 80% 0%, #000, transparent 75%);
          mask-image: radial-gradient(70% 100% at 80% 0%, #000, transparent 75%);
}
.page-hero__inner { position: relative; z-index: 1; max-width: 56ch; }
.page-hero .display { font-size: clamp(2.4rem, 5.4vw, 4.2rem); margin-top: 1.2rem; }
.page-hero .lead { margin-top: 1.4rem; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--dark);
  color: var(--on-dark);
  padding-block: clamp(3.5rem, 6vw, 5rem) 2rem;
  position: relative; overflow: hidden;
}
.site-footer__glow { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(50% 70% at 90% 0%, rgba(46,81,214,.2), transparent 60%); }
.footer-top {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem;
  padding-bottom: 3rem; border-bottom: 1px solid var(--dark-line);
}
.footer-brand .brand { color: #fff; }
.footer-brand p { color: var(--on-dark-soft); margin-top: 1.1rem; max-width: 34ch; font-size: .98rem; }
.footer-col h4 { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--on-dark-soft); margin-bottom: 1.1rem; font-weight: 500; }
.footer-col a { display: block; padding: .35rem 0; color: var(--on-dark); opacity: .85; transition: opacity .18s ease, color .18s ease; }
.footer-col a:hover { opacity: 1; color: #fff; }
.footer-col a .tag { font-family: var(--font-mono); font-size: .62rem; letter-spacing: .1em; color: #7E97F2; margin-left: .4rem; vertical-align: middle; }
.footer-bottom {
  position: relative; z-index: 1;
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
  padding-top: 1.8rem; color: var(--on-dark-soft); font-size: .85rem;
}
.footer-bottom .dot { color: var(--primary); }

/* ==========================================================================
   Reveal animation
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s cubic-bezier(.2,.7,.2,1), transform .6s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================================
   Mobile nav drawer
   ========================================================================== */
.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border-radius: 10px; border: 1px solid var(--line-strong);
}
.nav__toggle span { position: relative; width: 20px; height: 2px; background: var(--ink); transition: background .2s; }
.nav__toggle span::before, .nav__toggle span::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--ink); transition: transform .25s ease; }
.nav__toggle span::before { top: -6px; }
.nav__toggle span::after { top: 6px; }
body.menu-open .nav__toggle span { background: transparent; }
body.menu-open .nav__toggle span::before { transform: translateY(6px) rotate(45deg); }
body.menu-open .nav__toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { max-width: 560px; margin-top: .5rem; }
  .split, .phase, .value-row, .form-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .anti-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .phase__sticky { position: static; }
  .usecase, .usecase:nth-child(even) { grid-template-columns: 1fr; }
  .usecase__visual, .usecase:nth-child(even) .usecase__visual { order: -1; max-width: 480px; }
}

@media (max-width: 720px) {
  .nav__links {
    position: fixed;
    inset: 74px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: .5rem var(--gutter) 1.5rem;
    margin: 0;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
    box-shadow: var(--shadow);
  }
  body.menu-open .nav__links { opacity: 1; transform: none; pointer-events: auto; }
  .nav__link { padding: .95rem 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .nav__link::after { display: none; }
  .nav__cta { margin-top: 1.2rem; width: 100%; }
  .nav__toggle { display: inline-flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .meta-item--out { flex-basis: 100%; }
}

/* utilities */
.mt-0 { margin-top: 0 !important; }
.center { text-align: center; }
.hr { height: 1px; background: var(--line); border: 0; margin-block: var(--section-y); }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }