/* ============================================================
   visite-virtuelle.paris — feuille de style unique
   Identite : bleu nuit parisien + accent corail. Rapide, sobre.
   ============================================================ */
@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap");
:root{
  --nuit:#0d1b3e;      /* bleu nuit */
  --nuit2:#13244f;
  --corail:#ff6b57;    /* accent chaud, CTA */
  --corail-d:#e2543f;
  --encre:#1a1f2b;
  --gris:#5a6273;
  --gris-clair:#eef1f6;
  --blanc:#ffffff;
  --radius:12px;
  --wrap:1120px;
  --ombre:0 6px 24px rgba(13,27,62,.10);
  --ombre-forte:0 18px 50px rgba(13,27,62,.20);
  --font:"Manrope","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--encre);line-height:1.6;background:var(--blanc);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--nuit);text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
h1,h2,h3{line-height:1.15;font-weight:800;color:var(--nuit);letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,4.8vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.2vw,2.4rem);margin-bottom:.6em}
h3{font-size:1.2rem}
p{margin-bottom:1em}
section{padding:72px 0}
.lead{font-size:1.15rem;color:var(--gris)}
.eyebrow{display:inline-block;font-weight:700;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--corail);margin-bottom:14px}
.center .eyebrow{display:block}

/* Boutons */
.btn{display:inline-block;font-weight:700;padding:14px 26px;border-radius:var(--radius);transition:.2s;cursor:pointer;border:2px solid transparent;font-size:1rem}
.btn-primary{background:var(--corail);color:#fff;border-color:var(--corail)}
.btn-primary:hover{background:var(--corail-d);border-color:var(--corail-d)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-dark{background:var(--nuit);color:#fff;border-color:var(--nuit)}
.btn-dark:hover{background:var(--nuit2)}

/* En-tete */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--gris-clair)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{font-weight:800;font-size:1.2rem;color:var(--nuit);letter-spacing:-.5px}
.logo span{color:var(--corail)}
nav.main a{margin-left:24px;font-weight:600;color:var(--encre);font-size:.97rem}
nav.main a:hover{color:var(--corail)}
nav.main .btn{margin-left:24px;padding:10px 18px}
.burger{display:none;font-size:1.6rem;background:none;border:0;cursor:pointer}

/* Hero */
.hero{background:linear-gradient(135deg,rgba(13,27,62,.94) 0%,rgba(19,36,79,.86) 55%,rgba(13,27,62,.78) 100%),url("/assets/img/hero-paris.jpg") center/cover no-repeat;color:#fff;padding:96px 0 104px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;background:radial-gradient(circle,rgba(255,107,87,.28),transparent 70%);border-radius:50%}
.hero h1{color:#fff;max-width:16ch}
.hero .lead{color:rgba(255,255,255,.85);max-width:52ch;margin:18px 0 28px;font-size:1.25rem}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero .trust{margin-top:26px;color:rgba(255,255,255,.7);font-size:.95rem}
.hero .eyebrow{color:#ffb3a6}

/* Bandeau confiance */
.bar{background:var(--gris-clair);padding:22px 0}
.bar .wrap{display:flex;gap:34px;flex-wrap:wrap;justify-content:center;align-items:center;color:var(--gris);font-weight:600;font-size:.95rem}
.bar .wrap span{display:flex;align-items:center;gap:8px}
.bar b{color:var(--nuit)}

/* Grille secteurs */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--gris-clair);border-radius:var(--radius);padding:28px;transition:.22s ease;box-shadow:var(--ombre)}
.card:hover{transform:translateY(-6px);border-color:var(--corail);box-shadow:var(--ombre-forte)}
.card .ico{font-size:1.7rem;width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:var(--gris-clair);border-radius:14px;margin-bottom:16px}
.card h3{margin-bottom:8px}
.card p{color:var(--gris);font-size:.97rem;margin-bottom:12px}
.card a{color:var(--corail);font-weight:700;font-size:.95rem}

/* Galerie realisations */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gallery figure{margin:0;border-radius:var(--radius);overflow:hidden;position:relative;box-shadow:var(--ombre);background:var(--nuit)}
.gallery img{width:100%;height:260px;object-fit:cover;transition:.4s}
.gallery figure:hover img{transform:scale(1.06)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;color:#fff;font-weight:700;background:linear-gradient(transparent,rgba(13,27,62,.85))}
.gallery figcaption small{display:block;font-weight:500;opacity:.85;font-size:.82rem;margin-top:2px}
@media(max-width:860px){.gallery{grid-template-columns:1fr}}

/* Mosaique realisations (mise en avant) */
.mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:210px;gap:16px;grid-auto-flow:dense}
.mosaic figure{margin:0;position:relative;overflow:hidden;border-radius:16px;background:var(--nuit);box-shadow:var(--ombre)}
.mosaic img{width:100%;height:100%;object-fit:cover;transition:.6s ease}
.mosaic figure:hover img{transform:scale(1.08)}
.mosaic figure:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 45%,rgba(13,27,62,.82));pointer-events:none}
.mosaic figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px 20px;color:#fff;font-weight:800;font-size:1.05rem}
.mosaic figcaption small{display:block;font-weight:500;opacity:.9;font-size:.82rem;margin-top:3px;letter-spacing:.01em}
.mosaic .big{grid-column:span 2;grid-row:span 2}
.mosaic .wide{grid-column:span 2}
@media(max-width:860px){
  .mosaic{grid-template-columns:1fr 1fr;grid-auto-rows:160px}
  .mosaic .big{grid-column:span 2;grid-row:span 2}
  .mosaic .wide{grid-column:span 2;grid-row:span 1}
}
@media(max-width:520px){
  .mosaic{grid-template-columns:1fr;grid-auto-rows:200px}
  .mosaic .big,.mosaic .wide{grid-column:span 1;grid-row:span 1}
}

/* Visite interactive : pastille lecture + badge sur les vignettes */
[data-tour]{cursor:pointer}
.tour-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:3;width:66px;height:66px;border-radius:50%;background:rgba(255,107,87,.94);display:flex;align-items:center;justify-content:center;transition:.25s ease;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.tour-play:before{content:"";border-style:solid;border-width:11px 0 11px 19px;border-color:transparent transparent transparent #fff;margin-left:4px}
[data-tour]:hover .tour-play{transform:translate(-50%,-50%) scale(1.12);background:var(--corail)}
.tour-tag{position:absolute;top:14px;left:14px;z-index:3;background:rgba(13,27,62,.72);color:#fff;font-size:.68rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;padding:6px 11px;border-radius:999px;backdrop-filter:blur(4px)}
.tour-tag:before{content:"● ";color:var(--corail)}

/* Fenetre modale de visite virtuelle — plein ecran */
.tour-modal{position:fixed;inset:0;z-index:1000;background:#05070f;display:none;align-items:center;justify-content:center}
.tour-modal.open{display:flex}
.tour-modal .frame{position:relative;width:100%;height:100%;background:#05070f;overflow:hidden}
.tour-modal iframe{width:100%;height:100%;border:0;display:block}
.tour-modal .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.85);font-weight:600;letter-spacing:.02em}
.tour-modal .tools{position:absolute;top:14px;right:16px;z-index:4;display:flex;gap:10px}
.tour-modal .tools button{width:44px;height:44px;border-radius:50%;border:0;background:rgba(255,255,255,.92);color:var(--nuit);font-size:1.5rem;line-height:1;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.35);display:flex;align-items:center;justify-content:center;transition:.15s}
.tour-modal .tools button:hover{background:#fff;transform:scale(1.08)}
.tour-modal .close{font-size:1.7rem}

/* Visite en vedette (pages secteurs) */
.tour-feature{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--ombre-forte);background:var(--nuit)}
.tour-feature img{width:100%;height:clamp(240px,42vw,460px);object-fit:cover;display:block;transition:.6s ease}
.tour-feature:hover img{transform:scale(1.04)}
.tour-feature:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 40%,rgba(13,27,62,.7))}
.tour-feature figcaption{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:22px 24px;color:#fff;font-weight:800;font-size:1.15rem}
.tour-feature figcaption small{display:block;font-weight:500;opacity:.9;font-size:.85rem;margin-top:3px}

/* Sections alternees */
.alt{background:var(--gris-clair)}
.center{text-align:center}
.center .lead{max-width:60ch;margin:0 auto 8px}

/* Focus Google */
.focus{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}
.focus .box{background:linear-gradient(135deg,var(--nuit),var(--nuit2));color:#fff;border-radius:16px;padding:40px}
.focus .box h2,.focus .box h3{color:#fff}
.focus ul{list-style:none;margin:16px 0}
.focus li{padding:8px 0 8px 30px;position:relative;color:rgba(255,255,255,.9)}
.focus li:before{content:"\2713";position:absolute;left:0;color:var(--corail);font-weight:800}

/* Etapes */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{padding:24px;border-radius:var(--radius);background:#fff;border:1px solid var(--gris-clair);position:relative}
.step:before{counter-increment:s;content:counter(s);display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--corail);color:#fff;font-weight:800;margin-bottom:14px}
.step h3{font-size:1.05rem;margin-bottom:6px}
.step p{color:var(--gris);font-size:.93rem;margin:0}

/* Chiffres */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center}
.stat b{display:block;font-size:2.4rem;color:var(--corail);font-weight:800}
.stat span{color:var(--gris);font-weight:600}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--gris-clair);border-radius:var(--radius);padding:18px 22px;margin-bottom:12px}
.faq summary{font-weight:700;cursor:pointer;color:var(--nuit);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";float:right;color:var(--corail);font-weight:800}
.faq details[open] summary:after{content:"\2013"}
.faq p{margin:12px 0 0;color:var(--gris)}

/* Tableau de prix indicatif */
.price-table{background:#fff;border:1px solid var(--gris-clair);border-radius:16px;overflow:hidden;box-shadow:var(--ombre)}
.price-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 22px;border-bottom:1px solid var(--gris-clair)}
.price-row:last-child{border-bottom:none}
.price-label{font-weight:600;color:var(--nuit)}
.price-val{font-weight:800;color:var(--corail);white-space:nowrap}
.price-opts{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:center;margin-top:20px;color:var(--gris);font-size:.95rem}
.price-opts b{color:var(--nuit)}
.price-note{text-align:center;color:var(--gris);font-size:.85rem;margin-top:14px}

/* CTA final */
.cta-final{background:linear-gradient(135deg,var(--corail),var(--corail-d));color:#fff;text-align:center;border-radius:18px;padding:54px 24px;margin:0 auto}
.cta-final h2{color:#fff}
.cta-final p{color:rgba(255,255,255,.92);max-width:52ch;margin:0 auto 22px}

/* Formulaire */
.form{background:#fff;border:1px solid var(--gris-clair);border-radius:16px;padding:32px;box-shadow:var(--ombre)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:block;font-weight:600;margin:12px 0 6px;font-size:.92rem}
.form input,.form textarea,.form select{width:100%;padding:12px 14px;border:1px solid #cdd3df;border-radius:10px;font-family:inherit;font-size:1rem}
.form textarea{min-height:120px;resize:vertical}
.form .btn{margin-top:18px;width:100%}

/* Deviseur en ligne */
.dv{max-width:900px;margin:0 auto}
.dv-steps{display:flex;gap:6px;margin-bottom:38px;list-style:none;counter-reset:s;flex-wrap:wrap}
.dv-steps li{flex:1;min-width:120px;text-align:center;font-size:.82rem;font-weight:700;color:var(--gris);position:relative;padding-top:40px}
.dv-steps li::before{counter-increment:s;content:counter(s);position:absolute;top:0;left:50%;transform:translateX(-50%);width:34px;height:34px;border-radius:50%;background:var(--gris-clair);color:var(--gris);display:flex;align-items:center;justify-content:center;font-weight:800;transition:.2s}
.dv-steps li.on::before{background:var(--corail);color:#fff;box-shadow:0 0 0 6px #ff6b571f}
.dv-steps li.done::before{background:var(--nuit);color:#fff;content:"\2713"}
.dv-panel{display:none;animation:dvfade .25s ease}
.dv-panel.on{display:block}
@keyframes dvfade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.dv-panel h2{margin-bottom:.25em}
.dv-hint{color:var(--gris);margin-bottom:26px}
.dv-opts{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.dv-opt{position:relative;border:2px solid var(--gris-clair);border-radius:var(--radius);padding:16px 18px;cursor:pointer;transition:.15s;display:flex;flex-direction:column;gap:3px}
.dv-opt:hover{border-color:var(--corail)}
.dv-opt.sel{border-color:var(--corail);background:#fff5f3}
.dv-opt input{position:absolute;opacity:0;pointer-events:none}
.dv-opt .ico{font-size:1.5rem;margin-bottom:4px}
.dv-opt .t{font-weight:700;color:var(--nuit)}
.dv-opt .p{font-size:.88rem;color:var(--gris)}
.dv-opt .tag{position:absolute;top:14px;right:16px;font-weight:800;color:var(--corail);font-size:.92rem}
.dv-size{background:var(--gris-clair);border-radius:16px;padding:28px 26px;text-align:center}
.dv-size .n{font-size:3rem;font-weight:800;color:var(--nuit);line-height:1;letter-spacing:-.03em}
.dv-size .u{color:var(--gris);font-weight:600;margin-bottom:18px}
.dv-size input[type=range]{width:100%;max-width:460px;accent-color:var(--corail);height:6px}
.dv-size .approx{color:var(--gris);font-size:.92rem;margin-top:14px}
.dv-nav{display:flex;justify-content:space-between;gap:12px;margin-top:32px}
.dv-nav .btn{width:auto}
.dv-est{position:sticky;bottom:0;z-index:20;background:var(--nuit);color:#fff;border-radius:16px 16px 0 0;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:0 -8px 30px rgba(13,27,62,.18);flex-wrap:wrap;margin-top:34px}
.dv-est .lbl{font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.65);font-weight:700}
.dv-est .val{font-size:1.7rem;font-weight:800;letter-spacing:-.02em}
.dv-est .val small{font-size:.9rem;font-weight:600;color:rgba(255,255,255,.7)}
.dv-recap{background:var(--gris-clair);border-radius:16px;padding:24px 26px;margin-bottom:26px}
.dv-recap ul{list-style:none}
.dv-recap li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid #dfe4ee}
.dv-recap li:last-child{border-bottom:0}
.dv-recap .big{font-size:1.35rem;font-weight:800;color:var(--nuit);border-top:2px solid #d3d9e6;margin-top:6px;padding-top:14px}
.dv-note{font-size:.85rem;color:var(--gris);margin-top:14px}

/* ============================================================
   REFONTE ACCUEIL 2026 — hero 360 immersif, filtres, animations
   ============================================================ */
/* Hero immersif split */
.hero-live{background:radial-gradient(1100px 460px at 82% -12%,rgba(255,107,87,.20),transparent 60%),linear-gradient(160deg,var(--nuit) 0%,var(--nuit2) 58%,#0a1530 100%);color:#fff;padding:60px 0 68px;position:relative;overflow:hidden}
.hero-live .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.hero-live h1{color:#fff;font-size:clamp(2.2rem,4.4vw,3.3rem);max-width:15ch}
.hero-live .lead{color:rgba(255,255,255,.84);font-size:1.18rem;margin:16px 0 26px;max-width:48ch}
.hero-live .eyebrow{color:#ffb3a6}
.hero-live .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 22px;color:rgba(255,255,255,.72);font-size:.9rem;font-weight:600}
.hero-trust span{display:flex;align-items:center;gap:7px}
.hero-trust b{color:#fff}

/* Cadre 360 live (facade cliquable -> iframe) */
.hero-frame{position:relative;border-radius:18px;overflow:hidden;box-shadow:var(--ombre-forte);aspect-ratio:4/3;background:#0a1530;border:1px solid rgba(255,255,255,.14);cursor:pointer}
.hero-frame .hero-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 6s ease}
.hero-frame:hover .hero-poster{transform:scale(1.06)}
.hero-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:4}
.hero-frame .hero-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;width:78px;height:78px;border-radius:50%;border:0;background:var(--corail);cursor:pointer;box-shadow:0 10px 30px rgba(255,107,87,.5)}
.hero-frame .hero-play:before{content:"";position:absolute;left:52%;top:50%;transform:translate(-50%,-50%);border-style:solid;border-width:13px 0 13px 22px;border-color:transparent transparent transparent #fff}
.hero-frame .hero-play:after{content:"";position:absolute;inset:-10px;border-radius:50%;border:2px solid rgba(255,255,255,.5);animation:ring 2s ease-out infinite}
@keyframes ring{0%{transform:scale(.85);opacity:.9}100%{transform:scale(1.4);opacity:0}}
.hero-frame .live-badge{position:absolute;right:14px;top:14px;z-index:3;background:var(--corail);color:#fff;font-size:.72rem;font-weight:800;letter-spacing:.06em;padding:6px 12px;border-radius:999px;text-transform:uppercase;display:flex;align-items:center;gap:7px}
.hero-frame .live-badge:before{content:"";width:8px;height:8px;border-radius:50%;background:#fff;animation:blink 1.4s infinite}
.hero-frame .drag-hint{position:absolute;left:14px;bottom:14px;z-index:3;background:rgba(13,27,62,.74);color:#fff;font-size:.82rem;font-weight:700;padding:8px 14px;border-radius:999px;backdrop-filter:blur(4px);pointer-events:none}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}

/* Filtres de galerie */
.filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:30px 0 4px}
.filter-chip{border:1.5px solid var(--gris-clair);background:#fff;color:var(--nuit);font-weight:700;font-size:.9rem;padding:9px 18px;border-radius:999px;cursor:pointer;transition:.18s;font-family:inherit}
.filter-chip:hover{border-color:var(--corail);color:var(--corail)}
.filter-chip.active{background:var(--nuit);color:#fff;border-color:var(--nuit)}
.mosaic figure.hide,.gallery figure.hide{display:none}

/* Bouton flottant */
.fab{position:fixed;right:20px;bottom:20px;z-index:60;background:var(--corail);color:#fff;font-weight:800;padding:14px 22px;border-radius:999px;box-shadow:var(--ombre-forte);display:flex;align-items:center;gap:9px;transform:translateY(130px);opacity:0;transition:transform .3s ease,opacity .3s ease,background .2s;font-size:.98rem}
.fab.show{transform:translateY(0);opacity:1}
.fab:hover{background:var(--corail-d);color:#fff}

/* Animations d'apparition au défilement (masqué seulement si JS actif) */
html.has-js .reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
html.has-js .reveal.is-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){html.has-js .reveal{opacity:1;transform:none;transition:none}.hero-frame .hero-play:after,.hero-frame .live-badge:before{animation:none}}

/* Pied */
footer.site{background:var(--nuit);color:rgba(255,255,255,.8);padding:54px 0 26px;font-size:.95rem}
footer.site h4{color:#fff;margin-bottom:14px;font-size:1rem}
footer.site a{color:rgba(255,255,255,.8)}
footer.site a:hover{color:var(--corail)}
footer.site .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:32px;margin-bottom:32px}
footer.site ul{list-style:none}
footer.site li{margin-bottom:8px}
footer.site .bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:rgba(255,255,255,.6);font-size:.88rem}

/* Fil d'ariane */
.crumb{font-size:.9rem;color:var(--gris);padding:16px 0}
.crumb a{color:var(--gris)}
.crumb a:hover{color:var(--corail)}

/* Responsive */
@media(max-width:860px){
  .hero-live .wrap{grid-template-columns:1fr;gap:30px}
  .hero-live{padding:44px 0 52px}
  .hero-frame{aspect-ratio:16/11;order:-1}
  .fab{right:14px;bottom:14px;padding:12px 18px;font-size:.92rem}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .focus{grid-template-columns:1fr}
  .form .row{grid-template-columns:1fr}
  .dv-opts{grid-template-columns:1fr}
  .dv-steps li{font-size:0;min-width:0;padding-top:36px}
  .dv-est{padding:14px 18px}
  .dv-est .val{font-size:1.4rem}
  footer.site .cols{grid-template-columns:1fr 1fr}
  nav.main{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:18px 22px;border-bottom:1px solid var(--gris-clair)}
  nav.main.open{display:flex}
  nav.main a,nav.main .btn{margin:8px 0}
  .burger{display:block}
}