/* ZERO JITTER — couche responsive mobile
   Le rendu ordinateur reste contrôlé par styles.css / atelier.css.
   Ce fichier ne modifie l'affichage qu'en dessous de 980 px. */

@media (max-width: 980px) {
  :root {
    --mobile-bg: #0b0c0d;
    --mobile-panel: #121416;
    --mobile-text: #f5f2ec;
    --mobile-muted: #d2cbc1;
    --mobile-soft: #a9a198;
    --mobile-gutter: clamp(20px, 5.5vw, 30px);
  }

  html { scroll-padding-top: 86px; }
  body {
    background: var(--mobile-bg);
    color: var(--mobile-text);
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
  }
  body.menu-open { overflow: hidden; }

  img, video, svg { max-width: 100%; height: auto; }
  p { text-wrap: pretty; }
  h1, h2, h3 { text-wrap: balance; }

  /* En-tête commun aux deux variantes HTML */
  .header {
    position: sticky;
    top: 0;
    z-index: 2000;
    background: rgba(8, 9, 10, .96);
    backdrop-filter: blur(14px);
  }
  .header__inner,
  .header-inner {
    min-height: 76px;
    padding: 15px var(--mobile-gutter) !important;
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) auto !important;
    align-items: center !important;
    gap: 14px !important;
  }
  .header__inner > a:first-child,
  .header-inner > a:first-child { min-width: 0; }

  .brand,
  .header-inner > a:first-child { display: grid !important; gap: 5px; }
  .brand__name,
  .brand-title {
    font-size: clamp(20px, 6vw, 28px) !important;
    line-height: 1 !important;
    letter-spacing: .17em !important;
    white-space: nowrap;
  }
  .brand__tag,
  .brand-sub {
    margin: 0 !important;
    font-size: 9px !important;
    line-height: 1.2;
    letter-spacing: .18em !important;
    white-space: nowrap;
  }

  .menu {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    min-width: 58px;
    min-height: 42px;
    padding: 9px 12px;
    border: 1px solid rgba(255,255,255,.24);
    border-radius: 2px;
    background: rgba(255,255,255,.025);
    color: var(--mobile-text);
    font: inherit;
    font-size: 10px;
    letter-spacing: .14em;
    cursor: pointer;
  }
  .menu.is-open { color: var(--accent); border-color: var(--accent); }

  .header .nav {
    position: fixed !important;
    inset: 76px 0 auto 0 !important;
    width: 100% !important;
    max-height: calc(100dvh - 76px);
    overflow-y: auto;
    margin: 0 !important;
    padding: 16px var(--mobile-gutter) 28px !important;
    display: none !important;
    flex-direction: column !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
    gap: 0 !important;
    background: rgba(8,9,10,.985);
    border-bottom: 1px solid rgba(255,255,255,.14);
    box-shadow: 0 24px 70px rgba(0,0,0,.55);
    text-transform: uppercase;
    letter-spacing: .12em;
  }
  .header .nav.open { display: flex !important; }
  .header .nav > a,
  .header .nav > .nav-item > a {
    width: 100%;
    padding: 15px 0 !important;
    border-bottom: 1px solid rgba(255,255,255,.09);
    color: var(--mobile-text);
    opacity: 1;
  }
  .header .nav a::after { display: none !important; }
  .header .nav .nav-item {
    width: 100%;
    display: block !important;
  }
  .header .nav .dropdown {
    position: static !important;
    transform: none !important;
    min-width: 0 !important;
    padding: 0 0 7px 14px !important;
    border: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }
  .header .nav .dropdown a {
    display: block !important;
    padding: 11px 0 !important;
    font-size: 11px;
    color: var(--mobile-muted);
  }

  /* Accueil — image visible, texte lisible, profondeur conservée */
  .hero {
    min-height: 0 !important;
    height: auto;
    display: grid;
    align-items: end;
    background: #08090a;
  }
  .hero__image,
  .hero > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 67% center !important;
    opacity: .88 !important;
    filter: brightness(1.04) contrast(1.04) saturate(.96) !important;
  }
  .hero::before {
    background:
      linear-gradient(180deg, rgba(6,7,8,.16) 0%, rgba(6,7,8,.25) 35%, rgba(6,7,8,.94) 92%),
      linear-gradient(90deg, rgba(6,7,8,.78) 0%, rgba(6,7,8,.25) 72%) !important;
  }
  .hero__content,
  .hero-content {
    width: 100%;
    padding: clamp(270px, 82vw, 410px) var(--mobile-gutter) 48px !important;
  }
  .hero__text { max-width: 34rem; }
  h1,
  .page-title,
  .hero h1 {
    font-size: clamp(38px, 11vw, 58px) !important;
    line-height: 1.04 !important;
    letter-spacing: .015em !important;
  }
  .hero p,
  .page-hero p {
    color: #eee8df !important;
    font-size: 16px !important;
    line-height: 1.62 !important;
    max-width: 36rem;
  }
  .line { margin: 23px 0 !important; }
  .btn {
    width: 100%;
    max-width: 340px;
    justify-content: center;
    padding: 15px 18px;
  }

  .principles__inner {
    grid-template-columns: 1fr !important;
    border-left: 0 !important;
  }
  .principle {
    min-height: 0;
    padding: 26px var(--mobile-gutter);
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .principle__icon { font-size: 27px; }
  .principle p { color: var(--mobile-muted); font-size: 14px; }

  .home-cards {
    grid-template-columns: 1fr !important;
    border: 0 !important;
  }
  .home-card,
  .home-card--wide {
    grid-column: auto !important;
    min-height: 470px;
    border-right: 0 !important;
  }
  .home-card__image {
    opacity: .88 !important;
    filter: brightness(1.04) contrast(1.04) saturate(.94) !important;
    object-position: center;
  }
  .home-card::before {
    background: linear-gradient(180deg, rgba(7,8,9,.10) 0%, rgba(7,8,9,.28) 42%, rgba(7,8,9,.96) 88%) !important;
  }
  .home-card__content {
    justify-content: flex-end !important;
    max-width: none;
    padding: 210px var(--mobile-gutter) 36px !important;
  }
  .home-card h2,
  .section-title {
    font-size: clamp(27px, 8vw, 38px) !important;
    line-height: 1.12;
    letter-spacing: .09em !important;
  }
  .home-card p,
  .page-intro p,
  .section p,
  .item p {
    color: var(--mobile-muted) !important;
    line-height: 1.68 !important;
  }

  /* Héros des pages standards */
  .page-hero {
    min-height: 0 !important;
    display: grid;
    align-items: end;
    background: #08090a;
  }
  .page-hero__image,
  .page-hero-bg {
    opacity: .86 !important;
    filter: brightness(1.08) contrast(1.03) saturate(.94) !important;
    background-position: center !important;
  }
  .page-hero::before {
    background:
      linear-gradient(180deg, rgba(6,7,8,.18) 0%, rgba(6,7,8,.32) 42%, rgba(6,7,8,.96) 92%),
      linear-gradient(90deg, rgba(6,7,8,.72), rgba(6,7,8,.18)) !important;
  }
  .page-hero__content,
  .page-hero-content {
    padding: clamp(210px, 64vw, 320px) var(--mobile-gutter) 46px !important;
  }

  .page,
  .main,
  .manifesto,
  .project-page {
    border-left: 0 !important;
    border-right: 0 !important;
  }
  .section,
  .content-section,
  .manifesto__intro,
  .manifesto__body,
  .project-lead,
  .project-stage,
  .footer {
    padding-left: var(--mobile-gutter) !important;
    padding-right: var(--mobile-gutter) !important;
  }
  .section,
  .content-section,
  .project-stage {
    padding-top: 54px !important;
    padding-bottom: 54px !important;
  }
  .split,
  .grid-2,
  .project-stage,
  .manifesto__body {
    grid-template-columns: 1fr !important;
    gap: 34px !important;
  }
  .content-section p,
  .manifesto__content p,
  .project-stage__body p,
  .section p {
    font-size: 16px !important;
    line-height: 1.75 !important;
    color: var(--mobile-muted) !important;
  }
  .box,
  .spec-card,
  .rule-box,
  .final-signature {
    padding: 23px !important;
    background: var(--mobile-panel) !important;
  }
  .grid-list,
  .project-list {
    grid-template-columns: 1fr !important;
  }
  .item { min-height: 0; padding: 27px 24px; background: #101214; }

  .manifesto__intro { padding-top: 48px !important; padding-bottom: 40px !important; }
  .manifesto__body { padding-top: 40px !important; padding-bottom: 64px !important; }
  .manifesto__toc {
    position: static !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 0 18px !important;
    padding: 18px;
    border: 1px solid var(--line);
    background: #101214;
  }
  .manifesto__content section { margin-bottom: 43px; padding-bottom: 43px; }
  .manifesto__content h2,
  .project-stage h2,
  .content-section h2,
  .section h2 {
    font-size: clamp(28px, 8vw, 42px) !important;
    line-height: 1.12 !important;
  }
  .quote-block,
  .project-quote,
  .quote {
    font-size: clamp(20px, 6vw, 28px) !important;
    padding-left: 20px !important;
  }

  /* Atelier : photographie d'abord, alternance supprimée sur mobile */
  .main .section,
  .main .section.reverse {
    grid-template-columns: 1fr !important;
    gap: 28px !important;
    padding: 54px var(--mobile-gutter) !important;
  }
  .main .section .text,
  .main .section .visual,
  .main .section.reverse .text,
  .main .section.reverse .visual { order: initial !important; }
  .visual img {
    width: 100%;
    border-color: rgba(255,255,255,.18);
    box-shadow: 0 20px 55px rgba(0,0,0,.34);
  }
  .visual.double { gap: 18px; }
  .no-photo { min-height: 230px; }

  .footer {
    padding-top: 30px !important;
    padding-bottom: 34px !important;
    flex-direction: column !important;
    align-items: flex-start;
    gap: 16px !important;
    color: var(--mobile-soft) !important;
  }
  .footer__links { flex-wrap: wrap; gap: 14px 22px; }
}

@media (max-width: 520px) {
  .manifesto__toc { grid-template-columns: 1fr !important; }
  .brand__tag,
  .brand-sub { max-width: 220px; overflow: hidden; text-overflow: ellipsis; }
  .hero__content,
  .hero-content { padding-top: 76vw !important; }
  .page-hero__content,
  .page-hero-content { padding-top: 58vw !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}

/* Correctif navigation mobile v2 — priorité absolue sur toutes les pages */
@media (max-width: 980px) {
  .header {
    position: sticky !important;
    top: 0 !important;
    z-index: 2147483000 !important;
    isolation: isolate;
    pointer-events: auto !important;
  }

  .header__inner,
  .header-inner,
  .header .brand,
  .header .menu {
    position: relative;
    z-index: 2;
    pointer-events: auto !important;
  }

  .header .menu {
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(183, 141, 92, .22);
  }

  .header .nav {
    z-index: 2147483001 !important;
    pointer-events: auto !important;
  }

  .header .nav.open,
  .header .nav.is-open {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  .header .nav a,
  .header .nav .nav-item,
  .header .nav .dropdown {
    pointer-events: auto !important;
  }

  /* Empêche les héros/pseudo-couches des pages de recouvrir l'en-tête */
  main,
  .page-hero,
  .hero,
  .project-page {
    position: relative;
    z-index: 0 !important;
  }
}