/* =========================================================
   Apex IT Advisory — Site (page d'accueil unique)
   Direction validée : marbre jade clair · Clash Display · charte jade
   ========================================================= */

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
[id] { scroll-margin-top: 94px; }

/* ---------- Lien d'évitement (accessibilité) ---------- */
.skip-link {
  position: absolute; left: 12px; top: 12px; z-index: 200;
  transform: translateY(-160%);
  background: var(--cream); color: var(--anthracite);
  font-family: var(--sans); font-size: 14px; font-weight: 600;
  padding: 10px 16px; border-radius: var(--r-sm);
  box-shadow: 0 10px 30px -12px rgba(0,0,0,.5);
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: none; outline: 2px solid var(--jade); outline-offset: 2px; }

/* ---------- Brand ---------- */
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 34px; height: 34px; display: grid; place-items: center;
  font-family: var(--serif); font-weight: 600; font-size: 19px;
  color: var(--cream); border: 1px solid var(--brass); border-radius: 7px;
  background: linear-gradient(150deg, rgba(176,141,87,.28), rgba(176,141,87,.05));
  line-height: 1;
}
.brand__name { font-family: var(--serif); font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.brand__thin { font-weight: 300; opacity: .92; }

/* ---------- Navigation (barre sombre fixe) ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(10,31,27,.82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  color: var(--on-dark);
  border-bottom: 1px solid rgba(176,141,87,0);
  transition: background .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
}
.nav.scrolled {
  background: rgba(8,25,21,.94);
  border-bottom-color: rgba(176,141,87,.22);
  box-shadow: 0 16px 44px -30px rgba(0,0,0,.85);
}
.nav__inner { display: flex; align-items: center; gap: 26px; min-height: 70px; }
.nav .brand { color: var(--on-dark); margin-right: auto; }
.nav__links { display: flex; gap: 30px; }
.nav__links a {
  font-size: 15px; font-weight: 500; color: var(--on-dark-soft);
  white-space: nowrap; padding-block: 6px; position: relative;
  transition: color .25s var(--ease);
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--brass-soft); transition: width .3s var(--ease);
}
.nav__links a:hover, .nav__links a.active { color: var(--cream); }
.nav__links a.active::after, .nav__links a:hover::after { width: 100%; }
.nav__cta { padding: 11px 18px; font-size: 14px; }
.nav__burger { display: none; }

/* ---------- Hero (marbre clair) ---------- */
.hero {
  min-height: 100svh; display: flex; align-items: center;
  padding: 132px var(--gutter) 72px;
}
.hero__inner { width: 100%; max-width: var(--maxw); margin-inline: auto; }
.hero__title {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(46px, 8vw, 104px); line-height: 0.98; letter-spacing: -0.03em;
  color: var(--anthracite); margin: 22px 0 0; max-width: 15ch;
}
.hero__title .lt { font-weight: 300; color: var(--jade-deep); }
.hero__lede {
  margin: 28px 0 0; max-width: 54ch; font-size: clamp(17px, 1.5vw, 20px);
  color: var(--ink-soft); line-height: 1.6;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero__facts {
  list-style: none; margin: 60px 0 0; padding: 28px 0 0;
  border-top: 1px solid rgba(20,48,42,.16);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; max-width: 760px;
}
.hero__facts li { display: flex; flex-direction: column; gap: 4px; }
.hero__facts strong { font-family: var(--serif); font-weight: 600; font-size: clamp(26px, 3vw, 34px); color: var(--anthracite); letter-spacing: -0.02em; }
.hero__facts span { font-size: 14px; color: var(--ink-soft); line-height: 1.4; }

/* ---------- Rythme de sections ---------- */
.section { padding-block: clamp(72px, 10vw, 130px); }
.section--cream { background: var(--cream); }
.section--warm { background: var(--cream-warm); }
.sec-head { max-width: 30ch; margin-bottom: 52px; }
.sec-head h2 { font-size: clamp(30px, 4.2vw, 50px); margin-top: 16px; }
.sec-head--split { max-width: none; display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px; align-items: end; }
.sec-head--split .intro { color: var(--ink-soft); font-size: 17px; max-width: 46ch; }

/* ---------- Pourquoi Apex ---------- */
.why__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(36px, 6vw, 88px); align-items: start; }
.why__body { display: grid; gap: 16px; }
.why__body p { color: var(--ink-soft); font-size: 16.5px; line-height: 1.65; }
.why__body p:first-child::first-letter { /* discret */ }
.pillars { display: grid; gap: 0; }
.pillar { display: grid; grid-template-columns: 52px 1fr; gap: 18px; padding: 22px 0; border-top: 1px solid rgba(20,48,42,.14); align-items: start; }
.pillar:last-child { border-bottom: 1px solid rgba(20,48,42,.14); }
.pillar__num { font-family: var(--serif); font-weight: 600; font-size: 17px; color: var(--brass); padding-top: 4px; }
.pillar h3 { font-size: 22px; margin: 0 0 6px; }
.pillar p { color: var(--ink-soft); font-size: 15.5px; line-height: 1.55; }

/* ---------- Offres ---------- */
.offers__stack { display: grid; gap: 22px; }
.offer {
  background: #fff; border: 1px solid rgba(20,48,42,.09); border-top: 3px solid var(--jade);
  border-radius: 3px 3px var(--r-lg) var(--r-lg); padding: 32px 32px 30px;
  display: flex; flex-direction: column;
  box-shadow: 0 22px 48px -36px rgba(15,42,37,.45);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.offer:hover { transform: translateY(-4px); box-shadow: 0 32px 60px -34px rgba(15,42,37,.5); border-top-color: var(--brass); }
.offer__idx { font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--brass); }
.offer h3 { font-size: clamp(22px, 2.4vw, 28px); margin: 14px 0 12px; }
.offer > p { color: var(--ink-soft); font-size: 16px; line-height: 1.6; flex: 1; }
.offer__tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; }
.offer__tags li { font-size: 12.5px; font-weight: 500; color: var(--jade); background: rgba(31,107,88,.08); border: 1px solid rgba(31,107,88,.16); padding: 5px 11px; border-radius: 999px; }

/* offre vedette (Diagnostic, Advisory) */
.offer--feature { display: grid; grid-template-columns: 1.4fr 1fr; gap: 36px; align-items: center; }
.offer--feature .offer__body { display: flex; flex-direction: column; }
.offer--feature h3 { font-size: clamp(26px, 3vw, 36px); }
.offer--feature .offer__aside { border-left: 1px solid rgba(20,48,42,.1); padding-left: 32px; }
.offer--feature .offer__aside p { color: var(--ink-soft); font-size: 15px; line-height: 1.6; margin: 0 0 18px; }

/* grappe audiovisuelle (2A/2B/2C) */
.offer-cluster { background: var(--cream); border: 1px solid rgba(20,48,42,.08); border-radius: var(--r-lg); padding: clamp(24px, 3vw, 36px); }
.offer-cluster__label { font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--brass); margin: 0 0 22px; display: flex; align-items: center; gap: 12px; }
.offer-cluster__label::before { content: ""; width: 24px; height: 1px; background: var(--brass); opacity: .7; }
.offer-cluster__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.av-card { background: #fff; border: 1px solid rgba(20,48,42,.09); border-radius: var(--r-md); padding: 26px 24px 28px; display: flex; flex-direction: column; transition: transform .35s var(--ease), box-shadow .35s var(--ease); }
.av-card:hover { transform: translateY(-3px); box-shadow: 0 22px 44px -32px rgba(15,42,37,.4); }
.av-card__idx { font-family: var(--serif); font-weight: 600; font-size: 18px; color: var(--jade); }
.av-card h4 { font-family: var(--serif); font-weight: 600; font-size: 19px; margin: 10px 0 10px; line-height: 1.15; }
.av-card p { color: var(--ink-soft); font-size: 14.5px; line-height: 1.55; }
.av-card .wk { margin-top: 14px; font-size: 12px; font-weight: 600; color: var(--jade); letter-spacing: .02em; }

.offers__cta { margin-top: 40px; display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.offers__cta .note { color: var(--ink-soft); font-size: 14.5px; }

/* ---------- Approche (section sombre) ---------- */
.approche { background: var(--anthracite-deep); color: var(--on-dark); }
.approche .sec-head h2 { color: var(--cream); }
.approche .eyebrow { color: var(--brass-soft); }
.approche__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 6vw, 90px); align-items: start; }
.approche__intro { color: var(--on-dark-soft); font-size: 17px; line-height: 1.6; max-width: 40ch; }
.approche__close { margin-top: 36px; padding: 26px 28px; border: 1px solid rgba(176,141,87,.32); border-radius: var(--r-lg); background: rgba(176,141,87,.05); }
.approche__close p { color: var(--foam); font-family: var(--serif); font-weight: 300; font-size: clamp(18px, 1.7vw, 22px); line-height: 1.5; }
.steps { display: grid; gap: 0; }
.step { display: grid; grid-template-columns: 56px 1fr; gap: 22px; padding: 26px 0; border-top: 1px solid rgba(170,216,203,.18); align-items: start; }
.step:first-child { border-top: 0; padding-top: 0; }
.step__n { font-family: var(--serif); font-weight: 600; font-size: 26px; color: var(--jade-light); line-height: 1; }
.step__h { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.step h3 { font-size: 21px; color: var(--cream); }
.step .free { font-size: 11.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--anthracite); background: var(--jade-light); padding: 3px 9px; border-radius: 999px; }
.step p { color: var(--on-dark-soft); font-size: 15.5px; line-height: 1.58; margin-top: 8px; }

/* ---------- À propos ---------- */
.about__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(40px, 6vw, 80px); align-items: start; }
.about__portrait {
  position: relative; aspect-ratio: 4 / 5; border-radius: var(--r-lg); overflow: hidden;
  background:
    repeating-linear-gradient(135deg, rgba(31,107,88,.07) 0 14px, rgba(31,107,88,.02) 14px 28px),
    var(--cream-warm);
  border: 1px solid rgba(20,48,42,.1);
  display: grid; place-items: center;
}
.about__portrait img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 20%; }
.about__portrait span { font-family: var(--sans); font-size: 12.5px; letter-spacing: .04em; color: var(--ink-soft); text-align: center; padding: 0 24px; }
.about__portrait code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 11.5px; color: var(--jade-deep); display: block; margin-top: 6px; }
.about__lead { font-family: var(--serif); font-weight: 300; font-size: clamp(20px, 2.2vw, 28px); line-height: 1.4; color: var(--anthracite); letter-spacing: -0.01em; }
.about__lead b { font-weight: 600; }
.about__body { display: grid; gap: 18px; margin-top: 26px; max-width: 60ch; }
.about__body p { color: var(--ink-soft); font-size: 16.5px; line-height: 1.66; }

/* ---------- Contact (marbre clair, bookend) ---------- */
.contact { position: relative; isolation: isolate; }
.contact__grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(40px, 6vw, 84px); align-items: start; }
.contact__title { font-size: clamp(32px, 4.6vw, 56px); margin: 16px 0 0; color: var(--anthracite); }
.contact__intro { color: var(--ink-soft); font-size: 18px; line-height: 1.6; margin: 22px 0 0; max-width: 38ch; }
.contact__facts { margin: 36px 0 0; display: grid; gap: 22px; }
.contact__fact { display: grid; gap: 4px; }
.contact__fact .k { font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--brass); }
.contact__fact a, .contact__fact .v { font-family: var(--serif); font-weight: 500; font-size: clamp(18px, 1.8vw, 22px); color: var(--anthracite); letter-spacing: -0.01em; }
.contact__fact a:hover { color: var(--jade-deep); }

/* formulaire */
.form { background: rgba(255,255,255,.72); backdrop-filter: blur(6px); border: 1px solid rgba(20,48,42,.12); border-radius: var(--r-lg); padding: clamp(26px, 3vw, 38px); box-shadow: 0 40px 90px -54px rgba(15,42,37,.5); }
.field { display: grid; gap: 8px; margin-bottom: 20px; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink); letter-spacing: .01em; }
.field input, .field textarea {
  font-family: var(--sans); font-size: 16px; color: var(--ink);
  background: #fff; border: 1px solid rgba(20,48,42,.18); border-radius: var(--r-sm);
  padding: 13px 15px; width: 100%; transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus { outline: 0; border-color: var(--jade); box-shadow: 0 0 0 3px rgba(31,107,88,.14); }
.form__submit { width: 100%; justify-content: center; margin-top: 4px; }
.form__note { font-size: 12.5px; color: var(--ink-soft); margin-top: 14px; text-align: center; }
.form__ok { display: none; font-size: 14.5px; color: var(--jade-deep); font-weight: 600; margin-top: 14px; text-align: center; }

/* ---------- Footer ---------- */
.footer { background: var(--anthracite-deep); color: var(--on-dark); padding-block: 52px; }
.footer__inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; align-items: start; }
.footer__brand { display: flex; gap: 14px; align-items: center; }
.footer .brand__mark { width: 38px; height: 38px; font-size: 21px; }
.footer__name { font-family: var(--serif); font-weight: 600; font-size: 19px; }
.footer__tag { font-size: 13.5px; color: var(--on-dark-soft); margin-top: 3px; }
.footer__nav { display: flex; flex-direction: column; gap: 11px; }
.footer__nav a { font-size: 15px; color: var(--on-dark-soft); width: fit-content; white-space: nowrap; transition: color .25s var(--ease); }
.footer__nav a:hover { color: var(--cream); }
.footer__meta { display: flex; flex-direction: column; gap: 8px; }
.footer__meta a { font-size: 15px; color: var(--foam); width: fit-content; }
.footer__meta p { font-size: 13px; color: var(--on-dark-soft); }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: inline-flex; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; color: var(--on-dark); }
  .nav__burger span { width: 24px; height: 1.5px; background: currentColor; display: block; }
  .nav.menu-open { background: rgba(8,25,21,.98); }
  body.menu-open .nav__links { display: flex; position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--anthracite-deep); padding: 8px var(--gutter) 20px; border-bottom: 1px solid rgba(176,141,87,.22); }
  body.menu-open .nav__links a { padding: 14px 0; border-bottom: 1px solid rgba(170,216,203,.1); }
  body.menu-open .nav__cta { display: inline-flex; position: absolute; top: 70px; left: 0; right: 0; margin: 0 var(--gutter); transform: translateY(190px); justify-content: center; }

  .why__grid, .sec-head--split, .approche__grid, .about__grid, .contact__grid { grid-template-columns: 1fr; }
  .sec-head--split { gap: 16px; }
  .offer--feature { grid-template-columns: 1fr; gap: 22px; }
  .offer--feature .offer__aside { border-left: 0; border-top: 1px solid rgba(20,48,42,.1); padding-left: 0; padding-top: 22px; }
  .offer-cluster__grid { grid-template-columns: 1fr; gap: 14px; }
  .about__portrait { max-width: 360px; }
  .footer__inner { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 560px) {
  .hero__facts { grid-template-columns: 1fr; gap: 16px; }
  .hero__facts li { flex-direction: row; align-items: baseline; gap: 12px; }
  .pillar { grid-template-columns: 40px 1fr; gap: 12px; }
  .step { grid-template-columns: 40px 1fr; gap: 14px; }
}