/* ==========================================================================
   Mortreux & Partner — feuille de style unique
   Charte 2026 : Bleu #003151 · Rouge #EA0437 · Ivoire #F5F3EF · Ardoise #7B8794
   ========================================================================== */

@font-face {
  font-family: 'Lato';
  src: url('../fonts/Lato-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Lato';
  src: url('../fonts/Lato-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bleu: #003151;
  --bleu-clair: #1b4a6b;
  --rouge: #ea0437;
  --ivoire: #f5f3ef;
  --ardoise: #7b8794;
  --texte: #1d2a35;
  --blanc: #ffffff;
  --trait: #e3e0da;

  --max: 1120px;
  --gout: clamp(1.25rem, 4vw, 2rem);
  --section: clamp(4.5rem, 9vw, 8rem);
  --serif: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 100px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--texte);
  background: var(--blanc);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--bleu); text-decoration: none; }
a:hover { color: var(--rouge); }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gout); }

/* --- Typographie ---------------------------------------------------------- */

h1, h2, h3, .surtitre {
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.125em;
  margin: 0;
  line-height: 1.2;
}

h1 { font-size: clamp(1.75rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.4rem, 3.2vw, 2.1rem); color: var(--bleu); }
h3 { font-size: 1.0625rem; letter-spacing: 0.11em; color: var(--bleu); line-height: 1.45; }

.surtitre {
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--rouge);
  margin-bottom: 0.9rem;
}

.esper { color: var(--rouge); }

.entete-section { max-width: 42rem; margin-bottom: clamp(2.5rem, 5vw, 3.75rem); }
.entete-section p { color: var(--ardoise); margin: 1rem 0 0; }

/* --- Boutons -------------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: 0.9rem 2rem;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  border: 1px solid var(--bleu);
  background: var(--bleu);
  color: #fff;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover { background: var(--rouge); border-color: var(--rouge); color: #fff; }
.btn--clair { background: transparent; border-color: rgba(255,255,255,.45); color: #fff; }
.btn--clair:hover { background: #fff; border-color: #fff; color: var(--bleu); }

/* --- En-tête -------------------------------------------------------------- */

.entete {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--trait);
}
.entete__inner {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: 86px;
}
.entete__logo img { width: clamp(148px, 18vw, 178px); }

.nav { margin-left: auto; display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2rem); }
.nav a {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--bleu); padding: .35rem 0; border-bottom: 1px solid transparent;
}
.nav a:hover { color: var(--rouge); border-bottom-color: var(--rouge); }
.nav .btn { padding: .7rem 1.35rem; font-size: .7rem; color: #fff; }
.nav .btn:hover { border-bottom-color: transparent; color: #fff; }

.burger {
  display: none; margin-left: auto;
  width: 44px; height: 44px; border: 0; background: none; cursor: pointer; padding: 10px;
}
.burger span { display: block; height: 1px; background: var(--bleu); margin: 6px 0; transition: .25s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .burger { display: block; }
  .nav {
    position: fixed; inset: 86px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--trait);
    padding: 1rem var(--gout) 2rem;
    transform: translateY(-130%); transition: transform .3s ease;
    max-height: calc(100vh - 86px); overflow-y: auto;
  }
  .nav[data-open="true"] { transform: translateY(0); }
  .nav a { padding: .95rem 0; border-bottom: 1px solid var(--trait); font-size: .8rem; }
  .nav .btn { margin-top: 1.25rem; text-align: center; border-bottom: 0; }
}

/* --- Hero ----------------------------------------------------------------- */

.hero {
  position: relative; overflow: hidden;
  background: var(--bleu);
  color: #fff;
  padding: clamp(5rem, 13vw, 9.5rem) 0 clamp(4.5rem, 11vw, 8rem);
}
.hero::after {
  content: ""; position: absolute; right: -6%; top: 50%;
  width: min(46vw, 560px); aspect-ratio: 127/103;
  transform: translateY(-50%);
  background: url('../logos/mp-symbole-blanc.svg') center/contain no-repeat;
  opacity: .07; pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 21ch; }
.hero .surtitre { max-width: none; }
.hero__rule { width: 68px; height: 2px; background: var(--rouge); margin: 2rem 0 1.75rem; }
.hero p { max-width: 46ch; color: rgba(255,255,255,.82); font-size: 1.125rem; margin: 0 0 2.5rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; }

/* --- Bandeau chiffres ----------------------------------------------------- */

.chiffres { background: var(--ivoire); border-bottom: 1px solid var(--trait); }
.chiffres__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: clamp(2rem, 4vw, 3rem) 0;
  text-align: center;
}
.chiffres__item + .chiffres__item { border-left: 1px solid var(--trait); }
.chiffres__val {
  display: block; font-size: clamp(1.5rem, 3.2vw, 2.1rem); font-weight: 300;
  color: var(--bleu); letter-spacing: .05em; line-height: 1.1;
}
.chiffres__lib {
  display: block; margin-top: .55rem;
  font-size: .68rem; text-transform: uppercase; letter-spacing: .18em; color: var(--ardoise);
}
@media (max-width: 700px) {
  .chiffres__grid { grid-template-columns: repeat(2, 1fr); gap: 2rem 0; }
  .chiffres__item:nth-child(odd) { border-left: 0; }
  .chiffres__item:nth-child(3) { border-left: 0; }
}

/* --- Sections ------------------------------------------------------------- */

section { padding: var(--section) 0; }
.section--ivoire { background: var(--ivoire); }
.section--bleu { background: var(--bleu); color: #fff; }
.section--bleu h2, .section--bleu h3 { color: #fff; }
.section--bleu .entete-section p { color: rgba(255,255,255,.7); }
.section--bleu .surtitre { color: rgba(255,255,255,.55); }
.section--bleu .etapes li { border-left-color: rgba(255,255,255,.18); }
.section--bleu .etapes li:last-child { border-left-color: transparent; }
.section--bleu .etapes strong { color: #fff; }
.section--bleu .etapes span { color: rgba(255,255,255,.7); }

/* --- Services ------------------------------------------------------------- */

.services {
  display: grid; gap: clamp(2rem, 4vw, 3.25rem);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.service { border-top: 1px solid var(--trait); padding-top: 1.5rem; }
.service__num {
  display: block; font-size: .7rem; letter-spacing: .2em; color: var(--rouge); margin-bottom: .85rem;
}
.service h3 { margin-bottom: .85rem; }
.service p { margin: 0; color: #46535f; font-size: .98rem; }
.service ul {
  margin: .9rem 0 0; padding: 0; list-style: none;
  font-size: .9rem; color: var(--ardoise);
}
.service li { padding-left: 1rem; position: relative; }
.service li::before {
  content: ""; position: absolute; left: 0; top: .82em;
  width: 5px; height: 1px; background: var(--rouge);
}

/* --- Approche / méthode --------------------------------------------------- */

.duo { display: grid; gap: clamp(2.5rem, 6vw, 5rem); grid-template-columns: 1fr 1fr; align-items: start; }
@media (max-width: 860px) { .duo { grid-template-columns: 1fr; } }

.piliers { list-style: none; margin: 0; padding: 0; }
.piliers li { padding: 1.25rem 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.piliers strong {
  display: block; font-weight: 300; text-transform: uppercase; letter-spacing: .12em;
  font-size: .95rem; margin-bottom: .3rem;
}
.piliers span { color: rgba(255,255,255,.7); font-size: .95rem; }

.etapes { counter-reset: e; list-style: none; margin: 0; padding: 0; }
.etapes li {
  counter-increment: e; position: relative; padding: 0 0 1.6rem 3.25rem;
  border-left: 1px solid var(--trait); margin-left: .75rem;
}
.etapes li:last-child { border-left-color: transparent; padding-bottom: 0; }
.etapes li::before {
  content: counter(e, decimal-leading-zero);
  position: absolute; left: -.85rem; top: -.15rem;
  width: 1.7rem; height: 1.7rem; border-radius: 50%;
  background: var(--rouge); color: #fff;
  font-size: .62rem; letter-spacing: .04em;
  display: grid; place-items: center;
}
.etapes strong { display: block; font-weight: 300; text-transform: uppercase; letter-spacing: .12em; font-size: .9rem; color: var(--bleu); }
.etapes span { font-size: .95rem; color: var(--ardoise); }

/* --- Secteurs ------------------------------------------------------------- */

.secteurs {
  display: grid; gap: clamp(1.75rem, 3.5vw, 3rem);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.secteurs article { border-top: 1px solid var(--trait); padding-top: 1.4rem; }
.secteurs h3 { margin-bottom: .7rem; }
.secteurs p { margin: 0; font-size: .95rem; color: #46535f; }

/* --- Encart --------------------------------------------------------------- */

.encart {
  margin-top: 2.25rem; padding: 1.5rem 1.75rem;
  background: var(--ivoire); border-left: 2px solid var(--rouge);
}
.encart p { margin: 0; font-size: .95rem; color: #46535f; }
.encart__titre {
  font-size: .68rem; text-transform: uppercase; letter-spacing: .18em;
  color: var(--ardoise); margin-bottom: .6rem !important;
}

/* --- Références (non utilisé — conservé si retour aux logos clients) ------- */

.refs {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1px; background: var(--trait); border: 1px solid var(--trait);
}
.refs span {
  background: #fff; padding: 1.5rem 1rem; text-align: center;
  font-size: .74rem; text-transform: uppercase; letter-spacing: .14em;
  color: var(--ardoise); display: grid; place-items: center; min-height: 84px;
  transition: color .2s ease;
}
.refs span:hover { color: var(--bleu); }
.refs--note { margin-top: 1.5rem; font-size: .85rem; color: var(--ardoise); }

/* --- Cabinet -------------------------------------------------------------- */

.groupe { list-style: none; margin: 2.5rem 0 0; padding: 0; display: grid; gap: 1px; background: var(--trait); border: 1px solid var(--trait); }
.groupe li { background: var(--ivoire); padding: 1.35rem 1.5rem; display: grid; gap: .2rem; }
.groupe strong { font-weight: 400; color: var(--bleu); font-size: .95rem; }
.groupe em { font-style: normal; color: var(--ardoise); font-size: .9rem; }

/* --- Contact -------------------------------------------------------------- */

.bureaux { display: grid; gap: 2rem; grid-template-columns: 1fr 1fr; margin-bottom: 3rem; }
@media (max-width: 620px) { .bureaux { grid-template-columns: 1fr; } }
.bureau { border-top: 1px solid var(--trait); padding-top: 1.35rem; }
.bureau__photo {
  width: 100%; aspect-ratio: 16 / 9; object-fit: cover;
  margin-bottom: 1.5rem;
}
.bureau h3 { margin-bottom: .75rem; }
.bureau p { margin: 0; font-size: .97rem; color: #46535f; }
.bureau a { display: inline-block; }

.form { display: grid; gap: 1.1rem; grid-template-columns: 1fr 1fr; }
.form .full { grid-column: 1 / -1; }
@media (max-width: 620px) { .form { grid-template-columns: 1fr; } }
.form label {
  display: block; font-size: .68rem; text-transform: uppercase; letter-spacing: .16em;
  color: var(--ardoise); margin-bottom: .45rem;
}
.form input, .form textarea, .form select {
  width: 100%; font: inherit; font-size: .97rem; color: var(--texte);
  padding: .8rem .95rem; background: #fff;
  border: 1px solid var(--trait); border-radius: 0;
  transition: border-color .2s ease;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--bleu); }
.form textarea { min-height: 150px; resize: vertical; }
.form .rgpd { font-size: .8rem; color: var(--ardoise); line-height: 1.6; }
.hp { position: absolute; left: -9999px; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--bleu); color: #fff; padding: .75rem 1.25rem;
  font-size: .8rem; text-transform: uppercase; letter-spacing: .14em;
}
.skip:focus { left: 0; color: #fff; }

/* --- Pied de page --------------------------------------------------------- */

.pied { background: var(--bleu); color: rgba(255,255,255,.68); padding: 3.5rem 0 2.5rem; font-size: .85rem; }
.pied__inner { display: flex; flex-wrap: wrap; gap: 2rem; align-items: center; justify-content: space-between; }
.pied img { width: 190px; opacity: .95; }
.pied a { color: rgba(255,255,255,.8); }
.pied a:hover { color: #fff; }
.pied__liens { display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: center; }
.pied__bas { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.14); font-size: .78rem; }

/* --- Page intérieure ------------------------------------------------------ */

.page { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.page h2 { margin-top: 2.75rem; margin-bottom: 1rem; font-size: 1.15rem; }
.page p, .page li { color: #46535f; font-size: .97rem; }
.page ul { padding-left: 1.1rem; }
.page table { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: .92rem; }
.page th, .page td { text-align: left; padding: .7rem .9rem; border: 1px solid var(--trait); }
.page th { background: var(--ivoire); font-weight: 400; color: var(--bleu); }

/* --- Apparition au défilement --------------------------------------------- */

/* L'animation ne s'applique que si le JS est actif : sans JS, tout reste visible
   (indispensable pour l'indexation et l'accessibilité). */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.vu { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

:focus-visible { outline: 2px solid var(--rouge); outline-offset: 3px; }

.groupe-titre {
  margin: 2.5rem 0 0; font-size: .68rem; text-transform: uppercase;
  letter-spacing: .18em; color: var(--ardoise);
}
.groupe { margin-top: 1rem; }

/* --- Sélecteur de langue -------------------------------------------------- */

.lang { display: flex; align-items: center; gap: .5rem; font-size: .7rem; letter-spacing: .16em; }
.lang > span { color: var(--ardoise); }
.lang a { color: var(--bleu); }
.lang a:hover { color: var(--rouge); }
.lang::before { content: ""; width: 1px; height: 14px; background: var(--trait); }
@media (max-width: 900px) {
  .lang { padding: .95rem 0; border-bottom: 1px solid var(--trait); font-size: .8rem; }
  .lang::before { display: none; }
}

.mention { font-size: .82rem; color: var(--ardoise); }

/* --- Portrait ------------------------------------------------------------- */

.portrait { margin: 2.25rem 0 0; max-width: 320px; }
.portrait img { width: 100%; height: auto; display: block; }
.portrait figcaption {
  margin-top: .95rem;
  font-size: .78rem; text-transform: uppercase; letter-spacing: .16em;
  color: var(--bleu);
}
.portrait figcaption span {
  display: block; margin-top: .3rem;
  letter-spacing: .14em; color: var(--ardoise);
}