/* ============================================================
   Gastronomia Traiteur — D.A. 3 « Corporate Precision » (B2B)
   Feuille de style partagée du site multi-pages premium.
   Palette : bleu marine, gris, accent rouge. IBM Plex Serif + Sans.
   Maquette d'étude — ASALIS Consulting Group.
   ============================================================ */
:root{
  --marine:#1B2A4A; --gris:#E7E7E2; --rouge:#C1272D;
  --marine-2:#12203a; --marine-3:#25396a; --blanc:#FFFFFF;
  --encre:#141926; --gris-txt:#5a6070; --gris-2:#F3F3F0;
  --rouge-clair:#E24B50;
  --trait:rgba(20,25,38,.14); --trait-clair:rgba(255,255,255,.16);
  --s2:16px; --s3:26px; --s4:56px; --s5:128px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
/* Transitions inter-pages (progressive enhancement — Chrome/Edge récents) */
@view-transition{navigation:auto}
@media (prefers-reduced-motion:no-preference){
  ::view-transition-old(root){animation:vt-out .3s ease both}
  ::view-transition-new(root){animation:vt-in .4s ease both}
}
@keyframes vt-out{to{opacity:0}}
@keyframes vt-in{from{opacity:0}}
body{font-family:'IBM Plex Sans',sans-serif;font-size:16.5px;line-height:1.65;color:var(--encre);background:var(--blanc);-webkit-font-smoothing:antialiased}
h1,h2,h3,.serif{font-family:'IBM Plex Serif',serif;font-weight:600}
h1,h2,h3{line-height:1.1;letter-spacing:-.005em;color:var(--marine)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(1180px,91%);margin:0 auto}
.eyebrow{font-family:'IBM Plex Sans',sans-serif;font-size:11.5px;letter-spacing:.26em;text-transform:uppercase;font-weight:700;color:var(--rouge)}
.rule{height:2px;width:46px;background:var(--rouge);margin:16px 0}

/* Header / nav multi-pages (transparent sur héro → .solid au scroll) */
header{position:sticky;top:0;z-index:50;background:transparent;border-bottom:1px solid transparent;transition:background .4s ease,border-color .4s ease}
header::before{content:"";position:absolute;left:0;right:0;top:0;height:128px;background:linear-gradient(180deg,rgba(15,22,38,.55),rgba(15,22,38,0));z-index:-1;transition:opacity .4s;pointer-events:none}
header.solid{background:rgba(255,255,255,.95);backdrop-filter:blur(9px);border-bottom-color:var(--trait)}
header.solid::before{opacity:0}
.nav{display:flex;align-items:center;justify-content:space-between;padding:17px 0;gap:16px}
.logo{font-family:'IBM Plex Sans',sans-serif;font-weight:700;font-size:18px;letter-spacing:.02em;color:#fff;white-space:nowrap;display:flex;flex-direction:column;line-height:1.1;transition:color .4s ease}
.logo em{font-style:normal;color:var(--rouge-clair);transition:color .4s ease}
.logo .est{font-family:'IBM Plex Sans',sans-serif;font-weight:500;font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.7);margin-top:2px;transition:color .4s ease}
.nav ul{display:none;list-style:none;gap:var(--s3);font-size:13px;font-weight:600;letter-spacing:.02em}
.nav ul a{color:rgba(255,255,255,.85);transition:color .3s;padding-bottom:4px;border-bottom:2px solid transparent}
.nav ul a:hover{color:#fff}
.nav ul a[aria-current="page"]{color:#fff;border-bottom-color:var(--rouge)}
.btn{display:inline-block;font-family:'IBM Plex Sans',sans-serif;font-weight:700;font-size:13px;letter-spacing:.02em;background:var(--rouge);color:#fff;padding:13px 24px;border-radius:2px;transition:background .25s ease-out,color .25s,border-color .25s;cursor:pointer;border:none}
.btn:hover{background:#a01f24}
.btn.ghost{background:transparent;border:1px solid var(--marine);color:var(--marine)}
.btn.ghost:hover{background:var(--marine);color:#fff}
/* Nav : bouton clair sur le héro, plein rouge une fois "solid" */
header .btn{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.5)}
header .btn:hover{background:rgba(255,255,255,.24)}
header.solid .logo{color:var(--marine)}
header.solid .logo em{color:var(--rouge)}
header.solid .logo .est{color:var(--gris-txt)}
header.solid .nav ul a{color:var(--gris-txt)}
header.solid .nav ul a:hover{color:var(--marine)}
header.solid .nav ul a[aria-current="page"]{color:var(--marine);border-bottom-color:var(--rouge)}
header.solid .btn{background:var(--rouge);color:#fff;border:1px solid var(--rouge)}
header.solid .btn:hover{background:#a01f24}

/* Cadre image (liseré net corporate) */
.frame-dbl{position:relative;border:1px solid var(--trait)}
.frame-dbl::before{content:"";position:absolute;inset:-9px;border:1px solid var(--marine);pointer-events:none;z-index:1;opacity:.55}
.frame-dbl figure{background:var(--gris);overflow:hidden;margin:0}
.frame-dbl img{width:100%;height:100%;object-fit:cover;display:block}

/* Page hero (secondaire, pages internes) */
.page-hero{padding:var(--s5) 0 var(--s4);border-bottom:1px solid var(--trait)}
.page-hero h1{font-size:clamp(38px,5.6vw,70px);margin:14px 0 var(--s3)}
.page-hero h1 em{font-style:normal;color:var(--rouge)}
.page-hero .lead{font-size:18px;color:#3d4454;max-width:40em}

/* Hero cinématographique — fond photo plein écran + Ken Burns + overlay */
.hero-cine{position:relative;min-height:90vh;display:flex;align-items:flex-end;overflow:hidden;background:var(--marine)}
.hero-cine .bg{position:absolute;inset:0;z-index:0}
.hero-cine .bg img{width:100%;height:100%;object-fit:cover;transform-origin:center;animation:kenburns 20s ease-out both}
@keyframes kenburns{from{transform:scale(1.12)}to{transform:scale(1)}}
.hero-cine::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(15,22,38,.28) 0%,rgba(15,22,38,.5) 45%,rgba(15,22,38,.9) 100%)}
.hero-cine .wrap{position:relative;z-index:2;padding:var(--s5) 0;width:min(1180px,91%)}
.hero-cine .eyebrow{color:var(--rouge-clair)}
.hero-cine .rule{background:var(--rouge)}
.hero-cine h1{color:#fff;font-size:clamp(42px,7vw,88px);max-width:15em;margin-top:6px}
.hero-cine h1 em{font-style:normal;color:#fff;border-bottom:3px solid var(--rouge);padding-bottom:2px}
.hero-cine .stand{font-size:19px;color:#d9dee9;max-width:35em;margin:var(--s3) 0}
.hero-cine .cta-row{display:flex;flex-wrap:wrap;gap:14px}
.hero-cine .btn.ghost{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.hero-cine .btn.ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.hero-cine .meta{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:var(--s4);padding-top:var(--s3);border-top:1px solid rgba(255,255,255,.24);font-size:12.5px;font-weight:500;letter-spacing:.02em;color:#c3cbdb}
.hero-cine .meta b{color:#fff;font-family:'IBM Plex Serif',serif;font-weight:600}
.hero-cine .scroll-hint{position:absolute;left:50%;bottom:22px;z-index:2;transform:translateX(-50%);color:rgba(255,255,255,.7);font-size:11px;letter-spacing:.25em;text-transform:uppercase;animation:bob 2.4s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}
/* Entrée à l'ouverture (au-dessus de la ligne de flottaison) */
.hero-cine .up{opacity:0;transform:translateY(24px);animation:heroUp .85s cubic-bezier(.22,.61,.36,1) forwards}
.hero-cine .up.d1{animation-delay:.12s}.hero-cine .up.d2{animation-delay:.28s}.hero-cine .up.d3{animation-delay:.44s}.hero-cine .up.d4{animation-delay:.6s}
@keyframes heroUp{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  .hero-cine .bg img{animation:none}
  .hero-cine .up{opacity:1;transform:none;animation:none}
  .hero-cine .scroll-hint{animation:none}
}
/* Variante compacte pour les pages internes */
.hero-cine.compact{min-height:58vh}
.hero-cine.compact .wrap{padding:var(--s5) 0 var(--s4)}
.hero-cine.compact h1{font-size:clamp(36px,5.4vw,64px);max-width:17em}
.hero-cine.compact .scroll-hint{display:none}

/* Bande signature */
.signature{border-top:1px solid var(--trait);border-bottom:1px solid var(--trait);padding:20px 0;background:var(--marine)}
.signature .wrap{display:flex;flex-wrap:wrap;gap:14px 40px;justify-content:center;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:#c7cfe0}
.signature .wrap span::before{content:"—";color:var(--rouge);margin-right:12px;opacity:.8}

/* Book / prestations (liste alternée) */
.book{padding:var(--s5) 0}
.book .head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:var(--s4)}
.book h2{font-size:clamp(30px,4.6vw,52px)}
.book .head p{font-size:15px;color:var(--gris-txt);max-width:28em}
.book .head p a{color:var(--rouge);border-bottom:1px solid var(--rouge);font-weight:600}
.proj{display:grid;gap:var(--s4);align-items:center;padding:var(--s4) 0;border-top:1px solid var(--trait)}
.proj:nth-child(even) .frame-dbl{order:-1}
.proj .projimg{aspect-ratio:64/46}
.proj .num{font-family:'IBM Plex Sans',sans-serif;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--rouge);font-weight:700}
.proj h3{font-size:clamp(26px,3.4vw,36px);margin:10px 0 14px;font-weight:600}
.proj p{font-size:16px;color:#3d4454;max-width:34em}
.proj .facts{display:flex;flex-wrap:wrap;gap:9px;margin-top:var(--s3)}
.proj .facts span{font-size:12px;font-weight:600;color:var(--marine);border:1px solid var(--trait);padding:7px 15px;border-radius:2px}

/* Galerie grille (aperçus) */
.grid-proj{display:grid;grid-template-columns:1fr;gap:var(--s3);padding:var(--s4) 0}
.card{position:relative;overflow:hidden;background:var(--gris);border:1px solid var(--trait)}
.card figure{margin:0;overflow:hidden;aspect-ratio:4/3;background:var(--gris)}
.card img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.22,.61,.36,1)}
.card:hover img{transform:scale(1.05)}
.card .cap{padding:18px 22px;border-top:3px solid var(--marine)}
.card .cap .num{font-family:'IBM Plex Sans',sans-serif;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--rouge);font-weight:700}
.card .cap h3{font-size:21px;margin-top:5px;font-weight:600}
.card .cap p{font-size:13.5px;color:var(--gris-txt);margin-top:6px}

/* Grille prestations (3 formats) */
.formats{padding:var(--s5) 0;border-top:1px solid var(--trait);background:var(--gris-2)}
.formats h2{font-size:clamp(28px,4vw,44px)}
.formats .head p{font-size:15.5px;color:var(--gris-txt);max-width:38em;margin:14px 0 var(--s4)}
.p-grid{display:grid;gap:2px}
.p-cell{background:var(--blanc);border-top:3px solid var(--marine);padding:30px 28px}
.p-cell .n{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--rouge);font-weight:700}
.p-cell h3{font-size:22px;margin:10px 0 10px;font-weight:600}
.p-cell p{font-size:14.5px;color:var(--gris-txt)}

/* Logistique / plan de salle */
.logistique{padding:var(--s5) 0}
.logistique .wrap{display:grid;gap:var(--s4);align-items:center}
.logistique h2{font-size:clamp(26px,3.8vw,42px);margin:12px 0 var(--s3)}
.logistique p{font-size:16px;color:#3d4454;max-width:32em}
.plan-frame{background:var(--gris);border:1px solid var(--trait);padding:24px}
.steps{margin-top:var(--s3);display:grid;gap:2px}
.step{background:var(--gris-2);padding:16px 20px;border-left:3px solid var(--rouge);display:flex;gap:14px;align-items:baseline}
.step b{font-family:'IBM Plex Serif',serif;color:var(--marine);font-size:15px;white-space:nowrap}
.step span{font-size:14px;color:var(--gris-txt)}

/* Bloc éditorial / texte long (à propos) */
.prose{padding:var(--s4) 0 var(--s5)}
.prose .col{max-width:64ch}
.prose p{margin-bottom:var(--s3);font-size:17px;color:#33394a}
.prose p .lead-in{font-family:'IBM Plex Serif',serif;font-size:1.05em;color:var(--marine);font-weight:600}
.timeline{display:grid;gap:2px;margin-top:var(--s4)}
.tcell{background:var(--gris-2);padding:26px;border-left:3px solid var(--marine)}
.tcell b{display:block;font-family:'IBM Plex Serif',serif;font-size:19px;color:var(--marine);margin-bottom:6px;font-weight:600}
.tcell p{font-size:14.5px;color:var(--gris-txt);margin:0}

/* Section marine (chiffres / références) */
.parcours{background:var(--marine);color:#dfe4ee;padding:var(--s5) 0}
.parcours .eyebrow{color:var(--rouge-clair)}
.parcours .rule{background:var(--rouge)}
.parcours h2{color:#fff;font-size:clamp(26px,4vw,46px);margin:12px 0 var(--s4);max-width:17em}
.parcours h2 em{font-style:normal;color:#fff;border-bottom:3px solid var(--rouge)}
.stats{display:grid;gap:2px;grid-template-columns:repeat(2,1fr)}
.stat{background:var(--marine-2);padding:26px 24px;border-top:3px solid var(--rouge)}
.stat .big{font-family:'IBM Plex Serif',serif;font-size:clamp(30px,4vw,44px);color:#fff;font-weight:600;line-height:1}
.stat .lab{font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:#aab4cc;margin-top:8px}
.parcours .quote{margin-top:var(--s4);border-top:1px solid var(--trait-clair);padding-top:var(--s4)}
.parcours blockquote{font-family:'IBM Plex Serif',serif;font-style:italic;font-size:clamp(21px,3vw,30px);color:#fff;max-width:24em;line-height:1.34;font-weight:400}
.parcours cite{display:block;margin-top:14px;font-family:'IBM Plex Sans',sans-serif;font-style:normal;font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--rouge-clair)}
.parcours cite a{color:#fff;border-bottom:1px solid var(--rouge-clair)}

/* Références corporate (grille foncée) */
.refs{padding:var(--s5) 0;border-top:1px solid var(--trait);background:var(--gris-2)}
.refs h2{font-size:clamp(26px,3.8vw,44px)}
.refs .head p{font-size:15.5px;color:var(--gris-txt);max-width:38em;margin:14px 0 var(--s4)}
.ref-grid{display:grid;gap:2px}
.ref{background:var(--blanc);padding:28px 26px;border-top:3px solid var(--rouge);display:flex;flex-direction:column;gap:8px;min-height:150px;justify-content:center}
.ref .mag{font-family:'IBM Plex Serif',serif;font-size:22px;color:var(--marine);font-weight:600}
.ref .det{font-size:13.5px;color:var(--gris-txt)}
.ref .flag{font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--rouge)}

/* Zone d'intervention (liste unique élégante) */
.zone{padding:var(--s5) 0;border-top:1px solid var(--trait)}
.zone h2{font-size:clamp(26px,3.8vw,42px);margin:12px 0 var(--s2)}
.zone .lead{font-size:16px;color:var(--gris-txt);max-width:40em;margin-bottom:var(--s4)}
.zone-list{display:flex;flex-wrap:wrap;gap:10px}
.zone-list span{font-size:13.5px;font-weight:600;color:var(--marine);background:var(--gris);border:1px solid var(--trait);padding:9px 16px;border-radius:2px}

/* Contact */
.contact-grid{display:grid;gap:var(--s4);padding:var(--s4) 0 var(--s5)}
.cinfo b{display:block;font-family:'IBM Plex Serif',serif;font-size:20px;color:var(--marine);margin-bottom:6px;font-weight:600}
.cinfo p{font-size:16px;color:#33394a;margin-bottom:var(--s3)}
.cinfo a{color:var(--marine);border-bottom:1px solid var(--rouge)}
.serv{display:flex;flex-wrap:wrap;gap:9px;margin-top:8px}
.serv span{font-size:12.5px;color:var(--marine);border:1px solid var(--trait);padding:7px 15px;border-radius:2px}
form label{display:block;font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--marine);margin:16px 0 6px;text-transform:uppercase}
form input,form textarea,form select{width:100%;font-family:inherit;font-size:15px;color:var(--encre);background:var(--gris-2);border:1px solid var(--trait);padding:13px 15px;border-radius:2px}
form input:focus,form textarea:focus,form select:focus{outline:none;border-color:var(--rouge)}
form .btn{margin-top:22px}

/* Footer */
footer{background:#0f1626;color:#9aa4bb;padding:var(--s5) 0 var(--s4);font-size:15px}
.foot{display:grid;gap:var(--s3)}
.foot b{display:block;color:#fff;font-family:'IBM Plex Serif',serif;font-size:18px;margin-bottom:8px;font-weight:600}
.foot a:hover{color:var(--rouge-clair)}
.foot ul{list-style:none;display:grid;gap:6px;font-size:14px}
.legal{border-top:1px solid var(--trait-clair);margin-top:var(--s4);padding-top:var(--s3);font-size:11.5px;color:#5f6a83;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between}

/* Badge maquette */
.badge-asalis{position:fixed;left:14px;bottom:14px;z-index:60;font-family:'IBM Plex Sans',sans-serif;font-size:11px;background:rgba(27,42,74,.94);color:#fff;padding:7px 13px;border-radius:2px}

/* Lightbox galerie */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(15,22,38,.95);display:flex;align-items:center;justify-content:center;padding:6vh 5vw;cursor:zoom-out;opacity:0;visibility:hidden;transition:opacity .3s ease}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:100%;max-height:88vh;object-fit:contain;box-shadow:0 24px 70px rgba(0,0,0,.6);transform:scale(.97);transition:transform .3s ease}
.lightbox.open img{transform:scale(1)}
.lightbox .lb-cap{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#fff;font-size:13px;letter-spacing:.04em;padding:0 20px}
.lightbox .lb-close{position:absolute;top:18px;right:28px;color:#fff;font-size:34px;line-height:1;cursor:pointer;opacity:.85}
.lightbox .lb-close:hover{opacity:1;color:var(--rouge-clair)}
.card img{cursor:zoom-in}

/* Reveal */
.js .rv{opacity:0;transform:translateY(24px);transition:opacity .75s ease,transform .75s cubic-bezier(.22,.61,.36,1)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}}

@media (min-width:760px){
  .grid-proj{grid-template-columns:repeat(2,1fr);gap:var(--s3)}
}
@media (min-width:860px){
  .nav ul{display:flex}
  .proj{grid-template-columns:1fr 1fr;gap:var(--s5)}
  .stats{grid-template-columns:repeat(4,1fr)}
  .p-grid{grid-template-columns:repeat(3,1fr)}
  .logistique .wrap{grid-template-columns:1fr 1fr}
  .ref-grid{grid-template-columns:repeat(3,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr 1fr;gap:var(--s5)}
  .foot{grid-template-columns:1.4fr 1fr 1fr 1fr}
}