/* =====================================================================
   SYLANTIS TECHNOLOGIES — Charte web
   Couleurs relevées sur le logo : marine #001040, bleu #0068F0,
   cyan #00E0F0, bleu profond #003078.
   Titres : Montserrat · Texte : Inter
   ===================================================================== */

:root {
  /* Marque */
  --navy: #001040;
  --navy-900: #000A2B;
  --navy-700: #0B1E52;
  --blue: #0068F0;
  --blue-600: #0057CC;
  --blue-50: #EEF5FF;
  --cyan: #00E0F0;
  --cyan-600: #00B4D8;
  --deep: #003078;
  --gradient: linear-gradient(120deg, #00E0F0 0%, #0094F2 38%, #0068F0 62%, #003078 100%);
  --gradient-soft: linear-gradient(120deg, rgba(0,224,240,.14), rgba(0,104,240,.10));

  /* Neutres */
  --ink: #0B1533;
  --ink-2: #3D4A68;
  --muted: #6B7896;
  --line: #E3E9F2;
  --line-2: #EEF2F8;
  --bg: #FFFFFF;
  --bg-2: #F6F9FD;

  /* Système */
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 2px rgba(0, 16, 64, .05);
  --shadow: 0 1px 2px rgba(0, 16, 64, .04), 0 12px 32px -12px rgba(0, 16, 64, .14);
  --shadow-lg: 0 24px 60px -20px rgba(0, 16, 64, .28);
  --max: 1200px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --font-head: 'Montserrat', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--blue-600); }
::selection { background: rgba(0, 104, 240, .16); }

h1, h2, h3, h4 {
  text-wrap: balance;
  font-family: var(--font-head);
  color: var(--navy);
  line-height: 1.18;
  margin: 0 0 .55em;
  font-weight: 700;
  letter-spacing: -.015em;
}
h1 { font-size: clamp(2.1rem, 4.4vw, 3.45rem); font-weight: 700; letter-spacing: -.025em; }
h2 { font-size: clamp(1.65rem, 2.8vw, 2.35rem); }
h3 { font-size: 1.08rem; font-weight: 600; letter-spacing: -.005em; }
p { margin: 0 0 1em; }
strong { color: var(--ink); font-weight: 600; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section { padding: 104px 0; position: relative; }
.section.tight { padding: 72px 0; }
.section.alt { background: var(--bg-2); }
.section.dark { background: var(--navy); color: #C9D4EC; }
.section.dark h2, .section.dark h3 { color: #fff; }
.section.dark strong { color: #fff; }

/* Titres de section --------------------------------------------------- */
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-head);
  font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--gradient); }
.section-head.center .eyebrow::after { content: ""; width: 28px; height: 1px; background: var(--gradient); }
.section.dark .eyebrow { color: var(--cyan); }
.lead { font-size: 1.1rem; line-height: 1.7; color: var(--ink-2); }
.section.dark .lead { color: #B7C4E0; }
.grad-text { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Boutons ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 48px; padding: 0 24px; border-radius: 8px;
  font-family: var(--font-head); font-size: .9rem; font-weight: 600; letter-spacing: .01em;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
}
.btn svg { width: 16px; height: 16px; transition: transform .2s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 8px 22px -10px rgba(0, 104, 240, .7); }
.btn-primary:hover { background: var(--blue-600); color: #fff; }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-700); color: #fff; }
.btn-ghost { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { color: var(--blue); }
.btn-outline-light { color: #fff; border-color: rgba(255, 255, 255, .35); }
.btn-outline-light:hover { border-color: #fff; color: #fff; background: rgba(255, 255, 255, .06); }
.btn-sm { height: 40px; padding: 0 18px; font-size: .85rem; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-head); font-weight: 600; font-size: .86rem; }
.link-arrow svg { width: 14px; height: 14px; transition: transform .2s var(--ease); }
.link-arrow:hover svg { transform: translateX(3px); }

/* Barre supérieure ---------------------------------------------------- */
.topbar { background: var(--navy-900); color: #93A2C4; font-size: .78rem; letter-spacing: .01em; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 38px; gap: 24px; }
.topbar a { color: #C9D4EC; }
.topbar a:hover { color: var(--cyan); }
.topbar .items { display: flex; gap: 28px; align-items: center; }
.topbar .items span { display: inline-flex; align-items: center; gap: 8px; }
.topbar svg { width: 14px; height: 14px; color: var(--cyan); }

/* En-tête ------------------------------------------------------------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line-2);
  transition: box-shadow .25s var(--ease);
}
.header.scrolled { box-shadow: 0 6px 24px -14px rgba(0, 16, 64, .25); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 80px; gap: 24px; }
.brand { display: inline-flex; align-items: center; flex: none; }
.brand img { height: 44px; width: auto; }
.nav { display: flex; align-items: center; gap: 2px; }
.nav a {
  position: relative; color: var(--ink); font-family: var(--font-head);
  font-size: .88rem; font-weight: 500; padding: 10px 14px; letter-spacing: .005em;
}
.nav a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  background: var(--gradient); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav a:hover, .nav a.active { color: var(--blue); }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }
.nav .btn { margin-left: 14px; color: #fff; }
.nav .btn::after { display: none; }
.burger { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 8px; background: #fff; cursor: pointer; position: relative; }
.burger span { position: absolute; left: 12px; right: 12px; height: 1.5px; background: var(--navy); border-radius: 2px; transition: transform .25s var(--ease), opacity .2s; }
.burger span:nth-child(1) { top: 15px; } .burger span:nth-child(2) { top: 21px; } .burger span:nth-child(3) { top: 27px; }
.burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Hero ---------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; padding: 112px 0 0; background: linear-gradient(180deg, #F4F8FE 0%, #FFFFFF 70%); }
.hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 64px; align-items: center; }
.hero h1 { margin-bottom: 24px; font-size: clamp(2rem, 3.7vw, 3.05rem); }
.hero .lead { max-width: 560px; font-size: 1.14rem; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 36px; }
.hero-wave { position: absolute; right: -6%; bottom: 0; width: 72%; height: auto; z-index: 0; pointer-events: none; opacity: .95; }
.pixels { position: absolute; z-index: 1; pointer-events: none; }
.pixels i { position: absolute; display: block; border-radius: 3px; background: var(--gradient); opacity: .9; }

.hero-panel {
  position: relative; background: rgba(255, 255, 255, .86); border: 1px solid var(--line);
  border-radius: 14px; padding: 34px; box-shadow: var(--shadow-lg);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.hero-panel::before { content: ""; position: absolute; left: 34px; right: 34px; top: -1px; height: 2px; background: var(--gradient); border-radius: 2px; }
.hero-panel .panel-title { font-family: var(--font-head); font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin-bottom: 22px; }
.hero-panel ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; }
.hero-panel li { display: grid; grid-template-columns: 40px 1fr; gap: 16px; align-items: start; }
.hero-panel li .ic { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--blue-50); }
.hero-panel li .ic svg { width: 22px; height: 22px; }
.hero-panel li strong { display: block; font-family: var(--font-head); font-size: .95rem; color: var(--navy); margin-bottom: 2px; }
.hero-panel li span { font-size: .9rem; color: var(--muted); line-height: 1.55; }

/* Bandeau des 6 expertises (signature visuelle de la marque) */
.pillars {
  position: relative; z-index: 2; margin-top: 88px;
  display: grid; grid-template-columns: repeat(6, 1fr);
  background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
}
.pillar { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 14px; padding: 30px 14px 28px; color: var(--navy); }
.pillar + .pillar { border-left: 1px solid var(--line); }
.pillar svg { width: 40px; height: 40px; transition: transform .3s var(--ease); }
.pillar span { font-family: var(--font-head); font-size: .86rem; font-weight: 500; line-height: 1.35; }
.pillar:hover { color: var(--blue); }
.pillar:hover svg { transform: translateY(-3px); }
.hero-bottom { height: 104px; }

/* Icônes (dégradé de marque) */
.ico { fill: none; stroke: url(#sy-grad); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.ico-solid { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Cartes -------------------------------------------------------------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px; transition: border-color .25s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.card::before { content: ""; position: absolute; left: -1px; right: -1px; top: -1px; height: 2px; border-radius: var(--radius) var(--radius) 0 0; background: var(--gradient); opacity: 0; transition: opacity .3s var(--ease); }
.card:hover { border-color: #D3DCEA; box-shadow: var(--shadow); transform: translateY(-3px); }
.card:hover::before { opacity: 1; }
.card .ic { width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center; background: var(--blue-50); margin-bottom: 22px; }
.card .ic svg { width: 28px; height: 28px; }
.card h3 { margin-bottom: 10px; }
.card p { font-size: .94rem; color: var(--ink-2); margin-bottom: 0; }
.card .link-arrow { margin-top: 20px; }
.card .num { font-family: var(--font-head); font-size: .75rem; font-weight: 600; letter-spacing: .18em; color: var(--muted); margin-bottom: 16px; display: block; }
.card ul { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 8px; }
.card ul li { position: relative; padding-left: 18px; font-size: .9rem; color: var(--ink-2); }
.card ul li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; border-radius: 2px; background: var(--gradient); }
.section.dark .card { background: rgba(255, 255, 255, .04); border-color: rgba(255, 255, 255, .1); }
.section.dark .card p, .section.dark .card li { color: #B7C4E0; }
.section.dark .card .ic { background: rgba(0, 224, 240, .08); }
.section.dark .card:hover { border-color: rgba(0, 224, 240, .35); box-shadow: none; }

/* Positionnement ------------------------------------------------------ */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #fff; box-shadow: var(--shadow-sm); }
.duo > div { padding: 48px; position: relative; }
.duo > div + div { border-left: 1px solid var(--line); background: linear-gradient(160deg, #FFFFFF 0%, #F4F8FE 100%); }
.duo .tag { display: inline-block; font-family: var(--font-head); font-size: .7rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--blue); margin-bottom: 16px; }
.duo h3 { font-size: 1.35rem; margin-bottom: 14px; }
.check { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.check li { display: grid; grid-template-columns: 20px 1fr; gap: 12px; font-size: .95rem; color: var(--ink-2); }
.check li svg { width: 20px; height: 20px; margin-top: 2px; }
.section.dark .check li { color: #C9D4EC; }

/* Étapes -------------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.steps::before { content: ""; position: absolute; left: 6%; right: 6%; top: 23px; height: 1px; background: linear-gradient(90deg, transparent, var(--line) 8%, var(--line) 92%, transparent); }
.step { position: relative; padding: 0 20px; text-align: left; }
.step .dot { position: relative; z-index: 1; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; background: #fff; border: 1px solid var(--line); font-family: var(--font-head); font-weight: 600; font-size: .85rem; color: var(--navy); margin-bottom: 22px; box-shadow: var(--shadow-sm); }
.step .dot::after { content: ""; position: absolute; inset: -1px; border-radius: 50%; padding: 1px; background: var(--gradient); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.step h3 { margin-bottom: 8px; }
.step p { font-size: .92rem; color: var(--ink-2); margin: 0; }

/* Atouts -------------------------------------------------------------- */
.feature { display: grid; grid-template-columns: 44px 1fr; gap: 18px; padding: 26px 0; border-top: 1px solid rgba(255, 255, 255, .1); }
.feature:first-child { border-top: 0; padding-top: 0; }
.feature .ic { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; background: rgba(0, 224, 240, .08); border: 1px solid rgba(0, 224, 240, .18); }
.feature .ic svg { width: 22px; height: 22px; }
.feature h3 { margin-bottom: 6px; font-size: 1rem; }
.feature p { margin: 0; font-size: .93rem; color: #B7C4E0; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.split.center { align-items: center; }

/* Secteurs ------------------------------------------------------------ */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips span { display: inline-flex; align-items: center; gap: 10px; padding: 10px 18px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-family: var(--font-head); font-size: .84rem; font-weight: 500; color: var(--navy); }
.chips span::before { content: ""; width: 6px; height: 6px; border-radius: 2px; background: var(--gradient); }

/* Technologies -------------------------------------------------------- */
.brands-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; background: var(--line-2); border: 1px solid var(--line-2); border-radius: 12px; overflow: hidden; }
.brand-tile { display: flex; align-items: center; justify-content: center; gap: 8px; height: 96px; padding: 18px 22px; background: #fff; transition: background .25s var(--ease); }
.brand-tile img { max-width: 118px; max-height: 34px; width: auto; height: auto; object-fit: contain; filter: grayscale(1); opacity: .62; transition: filter .25s var(--ease), opacity .25s var(--ease); }
.brand-tile img.tall { max-height: 46px; }
.brand-tile img.light { filter: grayscale(1) brightness(.62); opacity: .7; }
.brand-tile span { font-family: var(--font-head); font-size: .82rem; font-weight: 600; color: #8C98B2; transition: color .25s var(--ease); }
.brand-tile:hover { background: var(--bg-2); }
.brand-tile:hover img { filter: none; opacity: 1; }
.brand-tile:hover span { color: var(--navy); }
.brands-note { text-align: center; font-size: .8rem; color: var(--muted); margin: 18px 0 0; }

/* WhatsApp */
.ico-wa { width: 18px; height: 18px; flex: none; }
.topbar .ico-wa { width: 14px; height: 14px; color: var(--cyan); }
.info .ic-wa { color: #1FAF54; }
.info .ic-wa svg { width: 22px; height: 22px; }
.wa-float {
  position: fixed; right: 24px; bottom: 24px; z-index: 30;
  display: inline-flex; align-items: center; gap: 10px; height: 52px; padding: 0 20px 0 16px;
  border-radius: 999px; background: #1FAF54; color: #fff; font-family: var(--font-head); font-size: .88rem; font-weight: 600;
  box-shadow: 0 12px 30px -10px rgba(16, 90, 45, .55), 0 2px 6px rgba(0, 16, 64, .12);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
}
.wa-float .ico-wa { width: 24px; height: 24px; }
.wa-float:hover { color: #fff; background: #189A49; transform: translateY(-2px); box-shadow: 0 16px 34px -10px rgba(16, 90, 45, .6), 0 2px 6px rgba(0, 16, 64, .12); }

/* Formulaire : champ piège et retour d'envoi */
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin-top: 20px; padding: 14px 16px; border-radius: 10px; font-size: .9rem; line-height: 1.55; }
.form-status.success { background: #ECFAF2; border: 1px solid #BFEBD1; color: #135C34; }
.form-status.error { background: #FFF3F2; border: 1px solid #F6CFCB; color: #8A2A20; }
.form-status a { color: inherit; text-decoration: underline; }
.btn[disabled] { opacity: .7; cursor: progress; }

/* Bandeau d'appel ----------------------------------------------------- */
.cta { position: relative; overflow: hidden; background: var(--navy); color: #fff; padding: 88px 0; }
.cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(800px 380px at 92% 120%, rgba(0, 104, 240, .55), transparent 60%), radial-gradient(520px 260px at 0% -20%, rgba(0, 224, 240, .22), transparent 60%); }
.cta .container { position: relative; display: grid; grid-template-columns: 1.4fr .6fr; gap: 40px; align-items: center; }
.cta h2 { color: #fff; margin-bottom: 10px; }
.cta p { color: #B7C4E0; margin: 0; font-size: 1.05rem; }
.cta .actions { display: flex; gap: 12px; justify-content: flex-end; flex-wrap: wrap; }

/* En-tête de page ----------------------------------------------------- */
.page-hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #F4F8FE 0%, #FFFFFF 100%); padding: 88px 0 76px; border-bottom: 1px solid var(--line-2); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); margin-bottom: 16px; }
.page-hero p { font-size: 1.1rem; max-width: 680px; margin: 0; }
.page-hero .hero-wave { width: 54%; right: -4%; opacity: .75; }
.crumbs { font-family: var(--font-head); font-size: .76rem; font-weight: 500; letter-spacing: .04em; color: var(--muted); margin-bottom: 22px; display: flex; gap: 10px; align-items: center; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--blue); }

/* Blocs détaillés (expertises) --------------------------------------- */
.detail { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; align-items: start; padding: 88px 0; border-top: 1px solid var(--line-2); }
.detail:first-child { border-top: 0; }
.detail .ic { width: 60px; height: 60px; border-radius: 14px; display: grid; place-items: center; background: var(--blue-50); margin-bottom: 24px; }
.detail .ic svg { width: 32px; height: 32px; }
.detail .num { font-family: var(--font-head); font-size: .74rem; font-weight: 600; letter-spacing: .2em; color: var(--blue); display: block; margin-bottom: 12px; }
.detail h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
.detail .panel { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 34px; box-shadow: var(--shadow-sm); }
.detail .panel h4 { font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.detail .panel .check { margin-top: 0; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line-2); }
.tags span { font-size: .76rem; font-weight: 500; padding: 5px 11px; border-radius: 6px; background: var(--bg-2); border: 1px solid var(--line-2); color: var(--ink-2); }

/* FAQ ----------------------------------------------------------------- */
.faq { max-width: 860px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 24px 0; font-family: var(--font-head); font-weight: 600; font-size: 1rem; color: var(--navy); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; width: 12px; height: 12px; border-right: 1.5px solid var(--blue); border-bottom: 1.5px solid var(--blue); transform: rotate(45deg) translateY(-3px); transition: transform .25s var(--ease); }
.faq details[open] summary::after { transform: rotate(-135deg) translateY(-3px); }
.faq details p { margin: 0 0 24px; color: var(--ink-2); max-width: 760px; }

/* Contact ------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 64px; align-items: start; }
.info-list { display: grid; gap: 0; margin-top: 8px; }
.info { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding: 22px 0; border-top: 1px solid var(--line); }
.info:first-child { border-top: 0; }
.info .ic { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; background: var(--blue-50); }
.info .ic svg { width: 22px; height: 22px; }
.info small { display: block; font-family: var(--font-head); font-size: .7rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.info div { color: var(--ink); font-size: .95rem; }
.form { position: relative; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 40px; box-shadow: var(--shadow); }
.form::before { content: ""; position: absolute; left: 40px; right: 40px; top: -1px; height: 2px; background: var(--gradient); }
.form h3 { font-size: 1.2rem; margin-bottom: 6px; }
.form .sub { font-size: .9rem; color: var(--muted); margin-bottom: 28px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.field label { font-family: var(--font-head); font-size: .78rem; font-weight: 600; letter-spacing: .02em; color: var(--navy); }
.field input, .field select, .field textarea {
  font: inherit; font-size: .95rem; color: var(--ink); background: #fff;
  padding: 13px 15px; border: 1px solid var(--line); border-radius: 8px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: #A3AEC4; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(0, 104, 240, .1); }
.field textarea { min-height: 140px; resize: vertical; }
.form .note { font-size: .8rem; color: var(--muted); margin: 16px 0 0; }
.map { margin-top: 72px; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.map iframe { display: block; width: 100%; height: 400px; border: 0; filter: grayscale(.25) contrast(1.02); }

/* Texte légal --------------------------------------------------------- */
.prose { max-width: 860px; }
.prose h2 { font-size: 1.3rem; margin: 2.4em 0 .7em; }
.prose h2:first-child { margin-top: 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: .95rem; border-top: 1px solid var(--line); }
.prose td { padding: 14px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose td:first-child { width: 36%; padding-right: 24px; font-family: var(--font-head); font-size: .8rem; font-weight: 600; letter-spacing: .04em; color: var(--muted); text-transform: uppercase; }

/* Pied de page -------------------------------------------------------- */
.footer { position: relative; background: var(--navy-900); color: #8E9CBD; font-size: .9rem; padding: 88px 0 32px; overflow: hidden; }
.footer::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: var(--gradient); }
.footer .cols { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 48px; margin-bottom: 64px; }
.footer .brand img { height: 42px; }
.footer .slogan { margin: 22px 0 0; color: #C9D4EC; font-family: var(--font-head); font-size: .95rem; font-weight: 500; line-height: 1.5; max-width: 300px; }
.footer h4 { color: #fff; font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; margin-bottom: 20px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.footer a { color: #B7C4E0; }
.footer a:hover { color: var(--cyan); }
.footer .legal { border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 26px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; font-size: .78rem; color: #6F7EA2; }
.footer .legal a { color: #8E9CBD; }

/* Animations ---------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

/* Responsive ---------------------------------------------------------- */
@media (max-width: 1100px) {
  .pillars { grid-template-columns: repeat(3, 1fr); }
  .pillar:nth-child(4) { border-left: 0; }
  .pillar:nth-child(n+4) { border-top: 1px solid var(--line); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 960px) {
  .brands-wall { grid-template-columns: repeat(4, 1fr); }
  .hero-grid, .split, .detail, .contact-grid, .cta .container { grid-template-columns: 1fr; gap: 48px; }
  .hero-panel { max-width: 560px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .duo { grid-template-columns: 1fr; }
  .duo > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .steps::before { display: none; }
  .cta .actions { justify-content: flex-start; }
  .detail { padding: 64px 0; }
  .section { padding: 80px 0; }
}
@media (max-width: 880px) {
  .topbar { display: none; }
  /* backdrop-filter créerait un bloc conteneur pour le tiroir fixe */
  .header { background: #fff; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(340px, 88vw); z-index: 40;
    flex-direction: column; align-items: stretch; gap: 0; padding: 104px 28px 28px;
    background: #fff; box-shadow: -24px 0 60px -20px rgba(0, 16, 64, .3);
    transform: translateX(100%); visibility: hidden;
    transition: transform .35s var(--ease), visibility 0s linear .35s;
  }
  .nav.open { transform: none; visibility: visible; transition: transform .35s var(--ease); }
  .nav a { font-size: 1rem; padding: 16px 4px; border-bottom: 1px solid var(--line-2); }
  .nav a::after { display: none; }
  .nav .btn { margin: 24px 0 0; border-bottom: 0; }
  .burger { display: block; z-index: 45; }
  .header .container { height: 72px; }
  .brand img { height: 38px; }
}
@media (max-width: 640px) {
  .brands-wall { grid-template-columns: repeat(3, 1fr); }
  .brand-tile { height: 76px; padding: 14px; }
  .brand-tile img { max-width: 84px; max-height: 26px; }
  .brand-tile img.tall { max-height: 36px; }
  .brand-tile { gap: 6px; }
  .brand-tile span { font-size: .68rem; line-height: 1.25; }
  .wa-float { right: 16px; bottom: 16px; width: 54px; height: 54px; padding: 0; justify-content: center; }
  .wa-float span { display: none; }
  .wa-float .ico-wa { width: 28px; height: 28px; }
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .hero { padding-top: 64px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .pillars { grid-template-columns: repeat(2, 1fr); margin-top: 56px; }
  .pillar { padding: 24px 10px; }
  .pillar:nth-child(odd) { border-left: 0; }
  .pillar:nth-child(4) { border-left: 1px solid var(--line); }
  .pillar:nth-child(n+3) { border-top: 1px solid var(--line); }
  .grid-2, .grid-3, .grid-4, .steps, .form .row { grid-template-columns: 1fr; }
  .duo > div, .card, .form, .detail .panel, .hero-panel { padding: 26px; }
  .form::before, .hero-panel::before { left: 26px; right: 26px; }
  .footer .cols { grid-template-columns: 1fr; gap: 36px; }
  .hero-wave { width: 130%; right: -40%; opacity: .55; }
  .pixels { transform: scale(.5); transform-origin: top right; top: 10px !important; right: 14px !important; opacity: .75; }
  .hero-bottom { height: 64px; }
}

/* ---------- SYLANTIS Copilot (assistant IA) ---------- */
.copilot { position: fixed; right: 24px; bottom: 24px; z-index: 60; font-family: var(--font-body); }
.copilot-launcher {
  display: inline-flex; align-items: center; gap: 10px; height: 54px; padding: 0 22px 0 8px; border: 0; cursor: pointer;
  border-radius: 999px; background: var(--navy); color: #fff; font-family: var(--font-head); font-size: .9rem; font-weight: 500; letter-spacing: .02em;
  box-shadow: 0 16px 36px -14px rgba(0, 16, 64, .7), 0 2px 6px rgba(0, 16, 64, .15);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.copilot-launcher b { font-weight: 700; }
.copilot-launcher:hover { transform: translateY(-2px); box-shadow: 0 20px 40px -14px rgba(0, 16, 64, .75), 0 2px 6px rgba(0, 16, 64, .15); }
.copilot-spark { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: var(--gradient); color: #fff; }
.copilot-spark svg { width: 20px; height: 20px; }
.copilot.open .copilot-launcher { transform: scale(.92); opacity: 0; pointer-events: none; }

.copilot-panel {
  position: absolute; right: 0; bottom: 0; width: 392px; height: min(620px, calc(100vh - 48px));
  display: flex; flex-direction: column; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  box-shadow: 0 30px 70px -24px rgba(0, 16, 64, .45), 0 4px 14px rgba(0, 16, 64, .08);
  transform-origin: bottom right; animation: copilot-in .28s var(--ease);
}
.copilot-panel[hidden] { display: none; }
@keyframes copilot-in { from { opacity: 0; transform: translateY(12px) scale(.98); } to { opacity: 1; transform: none; } }

.copilot-head { position: relative; display: flex; align-items: center; gap: 12px; padding: 16px 14px 16px 18px; background: var(--navy); color: #fff; }
.copilot-head::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--gradient); }
.copilot-avatar { width: 40px; height: 40px; border-radius: 12px; background: #fff; display: grid; place-items: center; flex: none; }
.copilot-avatar img { width: 28px; height: 28px; }
.copilot-title { flex: 1; min-width: 0; line-height: 1.25; }
.copilot-title strong { display: block; color: #fff; font-family: var(--font-head); font-size: .98rem; font-weight: 700; letter-spacing: .02em; }
.copilot-title span { display: inline-flex; align-items: center; gap: 6px; font-size: .74rem; color: #A9B7D6; }
.copilot-title i { width: 7px; height: 7px; border-radius: 50%; background: #2BD47D; box-shadow: 0 0 0 3px rgba(43, 212, 125, .18); }
.copilot-icon-btn { width: 34px; height: 34px; border: 0; border-radius: 8px; background: transparent; color: #C9D4EC; cursor: pointer; display: grid; place-items: center; transition: background .2s, color .2s; }
.copilot-icon-btn:hover { background: rgba(255, 255, 255, .08); color: #fff; }
.copilot-icon-btn svg { width: 18px; height: 18px; }

.copilot-log { flex: 1; overflow-y: auto; padding: 20px 18px 8px; background: var(--bg-2); display: flex; flex-direction: column; gap: 12px; scroll-behavior: smooth; }
.copilot-msg { max-width: 88%; padding: 11px 14px; border-radius: 14px; font-size: .9rem; line-height: 1.55; color: var(--ink); word-wrap: break-word; }
.copilot-msg.assistant { align-self: flex-start; background: #fff; border: 1px solid var(--line); border-top-left-radius: 4px; }
.copilot-msg.user { align-self: flex-end; background: var(--blue); color: #fff; border-top-right-radius: 4px; white-space: pre-wrap; }
.copilot-msg.error { border-color: #F6CFCB; background: #FFF8F7; }
.copilot-msg p { margin: 0 0 8px; color: inherit; }
.copilot-msg p:last-child { margin-bottom: 0; }
.copilot-msg ul, .copilot-msg ol { margin: 4px 0 8px; padding-left: 18px; }
.copilot-msg li { margin: 3px 0; }
.copilot-msg a { color: var(--blue); text-decoration: underline; text-underline-offset: 2px; }
.copilot-msg strong { color: var(--navy); }
.copilot-msg.typing { display: inline-flex; gap: 5px; padding: 14px 16px; }
.copilot-msg.typing span { width: 7px; height: 7px; border-radius: 50%; background: #A3AEC4; animation: copilot-dot 1.2s infinite ease-in-out; }
.copilot-msg.typing span:nth-child(2) { animation-delay: .15s; }
.copilot-msg.typing span:nth-child(3) { animation-delay: .3s; }
@keyframes copilot-dot { 0%, 80%, 100% { opacity: .35; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-3px); } }

.copilot-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 2px; }
.copilot-chips button { border: 1px solid #CFDDF3; background: #fff; color: var(--blue-600); font: 500 .8rem var(--font-body); padding: 7px 12px; border-radius: 999px; cursor: pointer; transition: background .2s, border-color .2s; }
.copilot-chips button:hover { background: var(--blue-50); border-color: var(--blue); }

.copilot-form { display: flex; align-items: flex-end; gap: 10px; padding: 12px 14px; border-top: 1px solid var(--line-2); background: #fff; }
.copilot-form textarea { flex: 1; resize: none; border: 1px solid var(--line); border-radius: 12px; padding: 11px 14px; font: .92rem/1.45 var(--font-body); color: var(--ink); max-height: 132px; background: #fff; overflow-y: hidden; scrollbar-width: thin; }
.copilot-form textarea.scroll { overflow-y: auto; }
.copilot-form textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(0, 104, 240, .1); }
.copilot-send { width: 44px; height: 44px; flex: none; border: 0; border-radius: 12px; background: var(--gradient); color: #fff; cursor: pointer; display: grid; place-items: center; transition: opacity .2s, transform .2s; }
.copilot-send:hover { transform: translateY(-1px); }
.copilot-send[disabled] { opacity: .5; cursor: progress; }
.copilot-send svg { width: 20px; height: 20px; }
.copilot-note { margin: 0; padding: 0 16px 12px; background: #fff; font-size: .7rem; line-height: 1.45; color: var(--muted); }
.copilot-note a { color: var(--muted); text-decoration: underline; }
.copilot-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* WhatsApp au-dessus de l'assistant */
.has-copilot .wa-float { bottom: 92px; width: 52px; height: 52px; padding: 0; justify-content: center; }
.has-copilot .wa-float span { display: none; }
.has-copilot .wa-float .ico-wa { width: 26px; height: 26px; }

@media (max-width: 640px) {
  .copilot { right: 16px; bottom: 16px; }
  .copilot-launcher { height: 54px; padding: 0 8px; }
  .copilot-launcher-label { display: none; }
  .copilot-panel { position: fixed; inset: 0; width: auto; height: 100%; border-radius: 0; border: 0; }
  .copilot-msg { max-width: 92%; }
  .copilot-form textarea { font-size: 16px; }
  .has-copilot .wa-float { right: 16px; bottom: 82px; }
  body.has-copilot:has(.copilot.open) { overflow: hidden; }
  .has-copilot:has(.copilot.open) .wa-float { display: none; }
}
@media (prefers-reduced-motion: reduce) { .copilot-panel { animation: none; } }

/* ---------- Contenu v2 : langue, livrables, newsletter, étapes de contact ---------- */
.lang-switch { margin-left: 10px; padding: 6px 10px !important; border: 1px solid var(--line); border-radius: 8px; font-family: var(--font-head); font-size: .74rem !important; font-weight: 600; letter-spacing: .08em; color: var(--navy) !important; }
.lang-switch::after { display: none !important; }
.lang-switch:hover { border-color: var(--blue); color: var(--blue) !important; }

.step .deliv { display: inline-block; margin-top: 14px; padding: 5px 10px; border-radius: 6px; background: var(--blue-50); color: var(--blue-600); font-family: var(--font-head); font-size: .72rem; font-weight: 600; letter-spacing: .02em; }
.dark .step .deliv { background: rgba(255, 255, 255, .08); color: #9FE9F5; }

.detail .panel h4 + .check + h4, .detail .panel h4.second { margin-top: 28px; }
.detail .panel .outcome { margin: 0; font-size: .94rem; color: var(--ink); padding-left: 14px; border-left: 2px solid var(--blue); }
.detail .panel .check + h4 { margin-top: 28px; }

.check.muted li { color: var(--muted); }
.check.muted li svg { opacity: .45; filter: grayscale(1); }

.proof { max-width: 860px; margin: 0 auto; grid-template-columns: 1fr 1fr; column-gap: 40px; }

.next { margin-top: 72px; padding: 36px 40px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-2); }
.next h3 { margin-bottom: 22px; }
.next ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.next li { display: grid; grid-template-columns: 34px 1fr; gap: 14px; font-size: .92rem; color: var(--ink-2); }
.next li > span { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--gradient); color: #fff; font-family: var(--font-head); font-weight: 600; font-size: .85rem; }
.next li strong { display: block; color: var(--navy); font-family: var(--font-head); font-size: .95rem; margin-bottom: 2px; }

/* Newsletter dans le pied de page */
.footer .nl { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding-bottom: 56px; margin-bottom: 56px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer .nl .eyebrow { color: #7FE6F2; }
.footer .nl h3 { color: #fff; font-size: 1.3rem; margin: 10px 0 10px; }
.footer .nl p { margin: 0; color: #9AA8C8; font-size: .9rem; }
.nl-row { display: flex; gap: 10px; }
.nl-row input { flex: 1; min-width: 0; height: 50px; padding: 0 16px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .06); color: #fff; font: .95rem var(--font-body); }
.nl-row input::placeholder { color: #8391B3; }
.nl-row input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(0, 224, 240, .12); }
.nl-row .btn { height: 50px; white-space: nowrap; }
.nl-consent { display: flex; gap: 10px; align-items: flex-start; margin-top: 14px; font-size: .8rem; line-height: 1.5; color: #8E9CBD; cursor: pointer; }
.nl-consent input { margin-top: 3px; accent-color: var(--blue); }
.nl-consent a { color: #B7C4E0; text-decoration: underline; }
.nl-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.nl-status { margin-top: 14px; padding: 12px 14px; border-radius: 10px; font-size: .86rem; line-height: 1.5; }
.nl-status.success { background: rgba(43, 212, 125, .1); border: 1px solid rgba(43, 212, 125, .3); color: #A8F0C8; }
.nl-status.error { background: rgba(255, 120, 100, .08); border: 1px solid rgba(255, 120, 100, .3); color: #FFC4B8; }
.nl-status a { color: inherit; text-decoration: underline; }

.notice-bar { position: fixed; left: 50%; top: 24px; transform: translateX(-50%); z-index: 70; max-width: min(560px, calc(100% - 32px)); padding: 14px 18px; border-radius: 12px; background: var(--navy); color: #fff; font-size: .9rem; box-shadow: var(--shadow-lg); display: flex; gap: 12px; align-items: center; }
.notice-bar button { border: 0; background: transparent; color: #A9B7D6; font-size: 1.2rem; cursor: pointer; }

@media (max-width: 960px) {
  .footer .nl { grid-template-columns: 1fr; gap: 24px; }
  .next ol { grid-template-columns: 1fr; gap: 18px; }
}
@media (max-width: 880px) {
  .lang-switch { margin: 18px 0 0; align-self: flex-start; }
}
@media (max-width: 640px) {
  .proof { grid-template-columns: 1fr; }
  .next { padding: 26px; }
  .nl-row { flex-direction: column; }
}