/* BRITEO — briteo.fr
   One-page institutionnel, conteneur 1120px, sections alternant blanc / gris froid, un seul bloc bleu nuit (Transmission).
   Thème clair unique (mode sombre hors périmètre). Accent cuivre. Aucune ressource externe (CSP stricte). */
@font-face { font-family: "Manrope"; src: url("/assets/fonts/manrope-latin-wght-normal.woff2") format("woff2"); font-weight: 200 800; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("/assets/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("/assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
:root {
  color-scheme: light;
  --navy: #0E1B2C;
  --ink: #142134;
  --muted: #56657A;
  --line: #DCE2EA;
  --bg: #FFFFFF;
  --surface: #F3F5F8;
  --accent: #9A4F27;
  --accent-soft: #F6EAE2;
  --accent-on-navy: #E29A6B;
  --on-navy: #D5DDE8;
  --on-navy-muted: #B5C1D1;
  --on-navy-line: rgba(255,255,255,.14);
  --error: #A3261E;
  --font-display: "Manrope", "Segoe UI", system-ui, sans-serif;
  --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --step--1: .8125rem;
  --step-0: 1rem;
  --step-1: 1.1875rem;
  --step-3: clamp(1.75rem, 1.3rem + 1.6vw, 2.375rem);
  --step-4: clamp(2.25rem, 1.5rem + 3vw, 3.5rem);
  --radius: 6px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font-body); font-size: var(--step-0); line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; margin: 0; text-wrap: balance; letter-spacing: -0.02em; color: var(--navy); }
p { margin: 0; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(16px, 4vw, 40px); }
.eyebrow { font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.lead { font-size: var(--step-1); color: var(--muted); max-width: 60ch; }
section { padding-block: clamp(64px, 9vw, 112px); }
.section-head { display: grid; gap: 14px; margin-bottom: clamp(36px, 5vw, 56px); max-width: 720px; }
.section-head h2 { font-size: var(--step-3); font-weight: 700; }

/* Header */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10;
  background: rgba(255,255,255,.94); backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 68px; }
.logo { display: inline-flex; align-items: center; color: var(--navy); text-decoration: none; }
.logo-svg { height: 22px; width: auto; display: block; }
.logo-mark { fill: var(--accent); }
.logo-text { fill: currentColor; }
.nav { display: flex; align-items: center; gap: 28px; font-size: .9375rem; font-weight: 500; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--navy); }
.lang { display: inline-flex; gap: 2px; font-family: var(--font-mono); font-size: var(--step--1); border: 1px solid var(--line); border-radius: var(--radius); padding: 2px; }
.lang a { text-decoration: none; padding: 4px 8px; border-radius: 4px; color: var(--muted); }
.lang a:hover { color: var(--navy); }
.lang a[aria-current="page"] { background: var(--navy); color: #fff; }
@media (max-width: 860px) { .nav-links { display: none; } }

/* Boutons */
.btn {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none; cursor: pointer;
  font: 600 .9375rem/1 var(--font-body); padding: 15px 22px; border-radius: var(--radius); border: 1px solid transparent;
  transition: background-color .2s, color .2s, border-color .2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--navy); }
.btn-ghost { border-color: var(--line); color: var(--navy); background: var(--bg); }
.btn-ghost:hover { border-color: var(--navy); }
.btn svg { width: 16px; height: 16px; }
.btn-on-navy { background: var(--accent-on-navy); color: var(--navy); }
.btn-on-navy:hover { background: #fff; }
.ctas { display: flex; flex-wrap: wrap; gap: 12px; }

/* Hero */
.hero { padding-block: clamp(56px, 8vw, 104px) clamp(56px, 7vw, 88px); border-bottom: 1px solid var(--line); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 80px); align-items: center; }
.hero-copy { display: grid; gap: 24px; min-width: 0; animation: rise .7s ease-out both; }
.hero h1 { font-size: var(--step-4); font-weight: 800; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .ctas { margin-top: 8px; }
@keyframes rise { from { transform: translateY(10px); } to { transform: none; } }

/* Panneau « Ce que nous apportons » */
.brings { border: 1px solid var(--line); border-radius: 10px; padding: 26px; background: var(--bg); min-width: 0; }
.brings h2 { font-size: .9375rem; font-weight: 700; letter-spacing: 0; margin-bottom: 20px; }
.brings ul { list-style: none; margin: 0; padding: 0; display: grid; }
.brings li { display: grid; grid-template-columns: 28px 1fr; gap: 14px; align-items: start; position: relative; padding-bottom: 18px; }
.brings li:last-child { padding-bottom: 0; }
.brings li::before { content: ""; position: absolute; left: 13px; top: 24px; bottom: 0; width: 2px; background: var(--accent-soft); }
.brings li:last-child::before { display: none; }
.brings .dot { width: 28px; height: 28px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; position: relative; z-index: 1; }
.brings .dot svg { width: 14px; height: 14px; }
.brings b { display: block; font-size: .9375rem; color: var(--navy); line-height: 1.3; padding-top: 3px; }
.brings small { display: block; color: var(--muted); font-size: var(--step--1); line-height: 1.45; margin-top: 2px; }

/* Expertises */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.card { background: var(--bg); padding: clamp(28px, 3vw, 36px); display: grid; gap: 14px; grid-template-rows: auto auto 1fr auto; min-width: 0; transition: background-color .2s; }
.card:hover { background: var(--surface); }
.card-icon { width: 44px; height: 44px; border-radius: 8px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.card-icon svg { width: 22px; height: 22px; }
.card h3 { font-size: var(--step-1); font-weight: 700; }
.card p { color: var(--muted); }
.card ul { margin: 4px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.card li { font-size: var(--step--1); border: 1px solid var(--line); border-radius: 999px; padding: 4px 11px; color: var(--ink); background: var(--bg); }
.soon { font-family: var(--font-mono); font-size: 11px; letter-spacing: .04em; color: var(--accent); background: var(--accent-soft); border-radius: 4px; padding: 2px 6px; margin-left: 6px; vertical-align: 1px; white-space: nowrap; }

/* Transmission */
.transmission { background: var(--navy); color: var(--on-navy); }
.transmission h2 { color: #fff; }
.transmission .eyebrow { color: var(--accent-on-navy); }
.transmission .lead { color: var(--on-navy-muted); }
.transmission .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(40px, 6vw, 88px); align-items: start; }
.transmission .section-head { margin-bottom: 28px; }
.transmission .ctas { margin-top: 32px; }
.commitments { margin: 0; border-top: 1px solid var(--on-navy-line); }
.commitments div { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 20px; padding-block: 22px; border-bottom: 1px solid var(--on-navy-line); }
.commitments dt { font-weight: 700; color: #fff; }
.commitments dd { margin: 0; color: var(--on-navy-muted); }

/* Parcours */
.parcours { background: var(--surface); }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 2px solid var(--navy); }
.stat { padding: 26px 24px 4px 0; display: grid; gap: 8px; align-content: start; }
.stat + .stat { padding-left: 24px; border-left: 1px solid var(--line); }
.stat-value { font-family: var(--font-display); font-weight: 800; font-size: var(--step-4); line-height: 1; color: var(--navy); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.stat-value sup { font-size: .45em; color: var(--accent); vertical-align: .9em; margin-left: 2px; }
.stat p { color: var(--muted); font-size: .9375rem; }
.certs { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 44px; align-items: center; }
.cert { display: inline-flex; align-items: center; gap: 10px; border: 1px solid var(--line); background: var(--bg); border-radius: var(--radius); padding: 10px 14px; font-size: .9375rem; }
.cert b { font-family: var(--font-mono); font-weight: 500; color: var(--navy); }
.cert span { color: var(--muted); font-size: var(--step--1); }
.cert .state { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.cert.pending .state { background: transparent; border: 2px solid var(--accent); }

/* Contact */
.contact .wrap { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 88px); align-items: start; }
.contact-aside { display: grid; gap: 18px; }
.contact-aside .section-head { margin-bottom: 0; }
.contact-aside .note { font-size: var(--step--1); color: var(--muted); border-left: 2px solid var(--accent); padding-left: 14px; }
form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.field { display: grid; gap: 7px; min-width: 0; }
.field.full { grid-column: 1 / -1; }
label { font-size: .875rem; font-weight: 600; color: var(--navy); }
label .opt { font-weight: 400; color: var(--muted); }
input, select, textarea {
  font: inherit; color: var(--ink); background: var(--bg); width: 100%;
  border: 1px solid #C5CED9; border-radius: var(--radius); padding: 12px 14px;
}
textarea { min-height: 140px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.consent { grid-column: 1 / -1; display: grid; grid-template-columns: 20px 1fr; gap: 12px; align-items: start; }
.consent input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--accent); }
.consent label { font-weight: 400; color: var(--muted); font-size: var(--step--1); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.form-status { font-size: .9375rem; }
.form-status.ok { color: var(--accent); }
.form-status.err { color: var(--error); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding-block: 28px; font-size: var(--step--1); color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; }
.site-footer a { color: var(--muted); }

@media (max-width: 960px) {
  .cards { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 900px) {
  .hero .wrap, .transmission .wrap, .contact .wrap { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  form { grid-template-columns: minmax(0, 1fr); }
  .commitments div { grid-template-columns: minmax(0, 1fr); gap: 6px; }
  .stats { grid-template-columns: minmax(0, 1fr); }
  .stat, .stat + .stat { padding-left: 0; border-left: 0; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
}

/* Icônes SVG (sprite) */
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

/* Lien d'évitement */
.skip { position: absolute; left: 16px; top: -100px; z-index: 20; background: var(--navy); color: #fff; padding: 10px 16px; border-radius: var(--radius); text-decoration: none; }
.skip:focus { top: 12px; }

/* Apparition légère au scroll : le contenu est visible par défaut, seul le décalage est animé */
.js .reveal { transition: transform .6s ease-out, opacity .6s ease-out; }
.js .reveal.is-below { transform: translateY(16px); opacity: .001; }
@media (prefers-reduced-motion: reduce) { .js .reveal.is-below { transform: none; opacity: 1; } }

/* Pages secondaires (mentions légales) */
.legal { padding-block: clamp(48px, 7vw, 88px); }
.legal .wrap { max-width: 780px; }
.legal h1 { font-size: var(--step-3); font-weight: 800; margin-bottom: 12px; }
.legal .updated { color: var(--muted); font-size: var(--step--1); margin-bottom: 40px; }
.legal h2 { font-size: var(--step-1); font-weight: 700; margin: 40px 0 12px; }
.legal p, .legal li { color: var(--ink); }
.legal p + p { margin-top: 10px; }
.legal dl { display: grid; grid-template-columns: minmax(0, 220px) minmax(0, 1fr); gap: 8px 20px; margin: 0; }
.legal dt { color: var(--muted); }
.legal dd { margin: 0; }
.legal a { color: var(--accent); }
@media (max-width: 640px) { .legal dl { grid-template-columns: minmax(0, 1fr); gap: 2px; } .legal dd { margin-bottom: 10px; } }

/* Page 404 */
.notfound { padding-block: clamp(80px, 12vw, 160px); }
.notfound .wrap { display: grid; gap: 20px; justify-items: start; }
.notfound h1 { font-size: var(--step-4); font-weight: 800; }