/* ==========================================================================
   MasterTrans — charte « Quai froid »
   Bleu galactique / pétrole / givre · Libre Franklin + IBM Plex Mono
   Angles vifs, filets nets, aucune ombre portée.
   ========================================================================== */

:root{
  /* fonds profonds */
  --void:#060a13;
  --night:#0b1524;
  --night-2:#122032;

  /* pétrole : la signature */
  --petrol-dk:#0d3b4c;
  --petrol:#12566c;
  --petrol-lt:#1a7791;

  /* givre : l'accent froid */
  --frost:#6ecfe4;
  --frost-dp:#3aa9c4;
  --frost-pale:#c2e6ef;

  /* vert : réservé à la RSE */
  --green:#4f8a5b;

  /* surfaces claires, teintées bleu */
  --paper:#eef3f6;
  --white:#ffffff;
  --concrete:#dbe4ea;
  --line:#b6c5d0;
  --muted:#5d7181;
  --ink:#0b1524;
  --text-soft:#495e6d;

  --max:1240px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:"Libre Franklin",-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}

h1,h2,h3{font-family:"Libre Franklin",sans-serif;font-weight:800;line-height:1.08;letter-spacing:-0.022em}
h1{font-size:clamp(33px,4.6vw,54px)}
h2{font-size:clamp(27px,3.5vw,42px)}

.shell,.container{max-width:var(--max);margin:0 auto;padding:0 28px}

/* voix technique : relevés, températures, références */
.mono{font-family:"IBM Plex Mono",monospace;font-weight:500;letter-spacing:0.14em;text-transform:uppercase}

/* ===== Ruban de danger ===================================================
   Repris du marquage de quai, teint en froid : c'est sa forme diagonale
   qui se lit, pas sa couleur.
   ======================================================================== */
.hazard{height:11px;background:repeating-linear-gradient(-45deg,var(--frost) 0 15px,var(--void) 15px 30px)}
.hazard-lg{height:15px}

/* barre de progression de lecture */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--frost);z-index:300;box-shadow:0 0 12px rgba(110,207,228,.6)}

/* ===== En-tête ===== */
.site-header{position:sticky;top:0;z-index:200;background:var(--void)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 28px;max-width:var(--max);margin:0 auto}
.nav-logo{
  display:flex;align-items:baseline;gap:10px;font-family:"Libre Franklin",sans-serif;font-weight:800;
  font-size:22px;letter-spacing:-0.02em;color:var(--paper);text-transform:uppercase
}
.nav-logo em{font-style:normal;color:var(--frost)}
.nav-logo .dock{
  font-family:"IBM Plex Mono",monospace;font-size:10px;font-weight:600;letter-spacing:0.18em;
  color:var(--void);background:var(--frost);padding:3px 7px;align-self:center
}

.nav-toggle{
  display:flex;flex-direction:column;justify-content:space-between;
  width:26px;height:19px;background:none;border:none;cursor:pointer;z-index:210
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--paper);transition:transform .2s ease,opacity .2s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(8.5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-8.5px) rotate(-45deg)}

.nav-menu{
  position:fixed;top:0;right:0;height:100vh;width:min(80vw,320px);background:var(--void);
  display:flex;flex-direction:column;gap:0;padding:84px 24px 28px;
  transform:translateX(100%);transition:transform .25s ease;
  border-left:3px solid var(--frost)
}
.nav-menu.is-open{transform:translateX(0)}
.nav-menu a{
  font-size:13px;font-weight:600;letter-spacing:0.09em;text-transform:uppercase;
  color:#8ea3b4;padding:14px 6px;border-bottom:1px solid rgba(255,255,255,.08);
  transition:color .12s
}
.nav-menu a:hover,.nav-menu a.is-active{color:var(--paper)}
.nav-menu a.is-active{border-bottom-color:var(--frost)}

@media(min-width:1000px){
  .nav-toggle{display:none}
  .nav-menu{
    position:static;height:auto;width:auto;background:none;flex-direction:row;gap:4px;
    padding:0;transform:none;transition:none;border-left:none
  }
  .nav-menu a{
    padding:9px 13px;border-bottom:3px solid transparent
  }
  .nav-menu a:hover{border-bottom-color:var(--petrol-lt)}
  .nav-menu a.is-active{border-bottom-color:var(--frost)}
}

/* ===== Bannière d'accueil ===== */
.hero{position:relative;background:var(--void);overflow:hidden;isolation:isolate}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-media img{
  width:100%;height:100%;object-fit:cover;object-position:58% 42%;
  filter:saturate(.42) contrast(1.12) brightness(.82) hue-rotate(-12deg)
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(6,10,19,.96) 0%,rgba(6,10,19,.9) 36%,rgba(13,59,76,.55) 70%,rgba(18,86,108,.35) 100%)
}
.hero-inner{max-width:var(--max);margin:0 auto;padding:118px 28px 90px}
.hero-tag{
  display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:600;
  letter-spacing:0.2em;text-transform:uppercase;color:var(--void);background:var(--frost);
  padding:6px 12px;margin-bottom:26px
}
.hero h1{color:var(--paper);font-size:clamp(38px,5.6vw,68px);max-width:17ch;margin-bottom:24px}
.hero h1 span{color:var(--frost)}
.hero p.tagline{color:#b6c8d6;font-size:clamp(17px,2vw,21px);max-width:46ch;margin-bottom:34px;line-height:1.5}

/* thermomètre : plage de température, lisible sans légende */
.thermo{max-width:390px;margin-bottom:34px}
.thermo-title{
  display:block;font-family:"IBM Plex Mono",monospace;font-size:10.5px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--frost-pale);opacity:.85;margin-bottom:11px
}
.thermo-bar{height:12px;position:relative;background:linear-gradient(90deg,#2b4a8f 0%,#2f7fa8 34%,var(--frost) 62%,#dbeef4 100%)}
.thermo-bar::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(6,10,19,.5) 0 1px,transparent 1px 26px)
}
.thermo-marks{display:flex;justify-content:space-between;margin-top:8px}
.thermo-marks span{font-family:"IBM Plex Mono",monospace;font-size:12.5px;font-weight:500;color:var(--frost-pale);letter-spacing:.04em}

/* ===== Boutons ===== */
.hero-actions,.acts{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-block;font-family:"Libre Franklin",sans-serif;font-size:14px;font-weight:700;
  letter-spacing:0.11em;text-transform:uppercase;padding:16px 28px;border:2px solid transparent;
  cursor:pointer;transition:transform .12s ease,background .12s ease,color .12s ease,box-shadow .12s ease
}
.btn-primary{background:var(--frost);color:var(--void)}
.btn-primary:hover{transform:translate(-3px,-3px);box-shadow:5px 5px 0 var(--petrol)}
.btn-outline{border-color:#3d5b6d;color:var(--paper)}
.btn-outline:hover{border-color:var(--frost);color:var(--frost)}
/* sur fond clair */
.btn-dark{background:var(--petrol);color:#fff}
.btn-dark:hover{transform:translate(-3px,-3px);box-shadow:5px 5px 0 var(--frost-dp)}

/* ===== Bandeau chiffré ===== */
.stats-strip{background:var(--concrete);border-bottom:3px solid var(--void)}
.stats-grid{display:grid;grid-template-columns:1fr;max-width:var(--max);margin:0 auto;padding:0}
@media(min-width:760px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat-item{padding:34px 28px;border-bottom:1px solid var(--line);transition:background .25s ease}
.stat-item:hover{background:#e7edf1}
@media(min-width:760px){
  .stat-item{border-bottom:none;border-right:1px solid var(--line)}
  .stat-item:last-child{border-right:none}
}
.stat-item .stat-label{
  font-family:"Libre Franklin",sans-serif;font-size:14px;font-weight:600;letter-spacing:0;
  color:var(--petrol-lt);display:block;margin-bottom:12px
}
.stat-item .stat-number{
  font-family:"Libre Franklin",sans-serif;font-weight:800;font-size:clamp(30px,4vw,42px);
  line-height:.95;letter-spacing:-0.035em;display:block;color:var(--night)
}
.stat-item .bar{width:46px;height:5px;background:var(--frost-dp);margin:14px 0 13px;transition:width .3s cubic-bezier(.2,.7,.3,1),background .3s ease}
.stat-item:hover .bar{width:100%;background:var(--petrol)}
.stat-item p{font-size:14.5px;color:var(--text-soft);line-height:1.45}

/* ===== Sections ===== */
section{padding:88px 0}
.section-alt{background:var(--concrete)}
.section-header{max-width:760px;margin-bottom:48px}
.section-header p{color:var(--text-soft);margin-top:14px}
/* Sur-titre : casse normale, pas de capitales ni de liseré coloré.
   Le monospace reste réservé aux données chiffrées. */
.eyebrow{
  display:block;font-family:"Libre Franklin",sans-serif;font-size:15px;font-weight:600;
  letter-spacing:0;text-transform:none;color:var(--petrol-lt);margin-bottom:10px
}

/* ===== Bloc scindé : photo + texte ===== */
.split{display:grid;gap:0;align-items:stretch}
@media(min-width:940px){.split{grid-template-columns:1.05fr 1fr}}
.split-media{position:relative;min-height:340px;background:var(--night)}
.split-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.5) brightness(.92) hue-rotate(-10deg)}
.split-media::after{
  content:"";position:absolute;left:0;bottom:0;width:132px;height:132px;background:var(--frost);
  clip-path:polygon(0 100%,100% 100%,0 0)
}
.split-media .stamp{
  position:absolute;left:0;top:0;background:var(--void);color:var(--frost-pale);
  font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  padding:8px 13px;z-index:2
}
.split-body{background:var(--night);color:var(--paper);padding:52px 44px}
.split-body h2{color:var(--paper);margin-bottom:22px}
.split-body p{color:#adc0cf;margin-bottom:17px;font-size:16.5px}
.split-body .eyebrow{color:var(--frost);border-left-color:var(--petrol-lt)}
.split-body .btn{margin-top:14px}

/* ===== Bordereau : services, valeurs, flotte ===== */
.rows{border-top:2px solid var(--void)}
.row{
  position:relative;padding:30px 0;border-bottom:1px solid var(--line);
  transition:padding-left .22s cubic-bezier(.2,.7,.3,1)
}
.row::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;background:var(--frost-dp);
  transform:scaleY(0);transform-origin:top;transition:transform .28s cubic-bezier(.2,.7,.3,1)
}
.row:hover::before{transform:scaleY(1)}
.row:hover{padding-left:22px}
.row h3{font-size:22px;margin-bottom:9px;color:var(--night);transition:color .2s ease}
.row:hover h3{color:var(--petrol)}
.row p{color:var(--text-soft);max-width:62ch;margin-bottom:13px;font-size:16px}

.row-media{display:grid;gap:24px}
@media(min-width:860px){.row-media{grid-template-columns:260px 1fr;align-items:start}}
.row-media .shot{position:relative;height:170px;overflow:hidden;background:var(--night)}
.row-media .shot img{width:100%;height:100%;object-fit:cover;filter:saturate(.55) brightness(.95) hue-rotate(-8deg);transition:transform .4s cubic-bezier(.2,.7,.3,1)}
.row:hover .shot img{transform:scale(1.05)}

.tags{display:flex;flex-wrap:wrap;gap:7px}
.tags li{
  font-family:"IBM Plex Mono",monospace;font-size:11.5px;font-weight:500;letter-spacing:0.07em;
  text-transform:uppercase;color:var(--petrol);border:1.5px solid var(--petrol-lt);padding:5px 10px
}

/* ===== Cartes (valeurs, flotte, contact) ===== */
.card-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
@media(min-width:700px){.card-grid{grid-template-columns:repeat(2,1fr)}}
.card{background:var(--white);padding:28px;transition:background .22s ease}
.card:hover{background:#f6f9fb}
.card h3{font-size:18px;margin-bottom:9px;color:var(--night)}
.card p{color:var(--text-soft);font-size:15.5px}
.card .num{
  font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:600;letter-spacing:.16em;
  color:var(--frost-dp);display:block;margin-bottom:10px
}

.fleet-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
@media(min-width:700px){.fleet-grid{grid-template-columns:repeat(2,1fr)}}
.fleet-card{background:var(--white);overflow:hidden}
.fleet-card-img{height:200px;overflow:hidden;background:var(--night)}
.fleet-card-img img{width:100%;height:100%;object-fit:cover;filter:saturate(.55) brightness(.95) hue-rotate(-8deg);transition:transform .45s cubic-bezier(.2,.7,.3,1)}
.fleet-card:hover .fleet-card-img img{transform:scale(1.06)}
.fleet-card-body{padding:24px 26px}
.fleet-card-body h3{font-size:18px;margin-bottom:8px;color:var(--night)}
.fleet-card-body p{color:var(--text-soft);font-size:15.5px}

/* ===== Engagement RSE ===== */
.rse-highlight{
  margin:44px auto 0;max-width:680px;background:var(--night);border-left:6px solid var(--green);
  padding:34px 32px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:20px
}
@media(min-width:700px){.rse-highlight{flex-direction:row;text-align:left;gap:30px}}
.rse-number{font-family:"Libre Franklin",sans-serif;font-weight:800;font-size:3.4rem;color:var(--green);line-height:1;flex-shrink:0}
.rse-text .eyebrow{color:var(--green);border-left-color:var(--green)}
.rse-text h3{color:var(--paper);font-size:19px;margin-bottom:8px}
.rse-text p{color:#adc0cf;font-size:15.5px}

/* ===== Clients ===== */
.clients-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
@media(min-width:700px){.clients-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}}
.client-badge{
  background:var(--white);padding:26px 20px;display:flex;align-items:center;justify-content:center;
  min-height:104px;transition:background .22s ease
}
.client-badge:hover{background:#f6f9fb}
.client-badge img{max-height:46px;max-width:100%;width:auto;object-fit:contain}

/* ===== Carte des implantations ===== */
.map-wrap-container{max-width:500px;margin:0 auto;background:var(--white);border:1px solid var(--line);padding:22px}
.map-wrap-container img,.map-wrap-container svg{width:100%;height:auto;display:block}

/* ===== Bandeau des villes desservies =====
   Défilement continu. Le contenu est dupliqué dans le HTML pour que la
   boucle soit sans raccord. Sur mouvement réduit, le défilement s'arrête
   et le bandeau devient simplement scrollable à la main.
   ======================================================================== */
.cities{
  margin-top:34px;background:var(--void);border-top:3px solid var(--frost-dp);
  overflow:hidden;position:relative
}
.cities::before,.cities::after{
  content:"";position:absolute;top:0;bottom:0;width:70px;z-index:2;pointer-events:none
}
.cities::before{left:0;background:linear-gradient(90deg,var(--void),transparent)}
.cities::after{right:0;background:linear-gradient(270deg,var(--void),transparent)}
.cities-track{display:flex;width:max-content;animation:defile 46s linear infinite}
.cities:hover .cities-track{animation-play-state:paused}
.cities-track span{
  font-family:"IBM Plex Mono",monospace;font-size:13px;font-weight:500;letter-spacing:.1em;
  text-transform:uppercase;color:var(--frost-pale);padding:16px 0;white-space:nowrap
}
.cities-track span::after{content:"·";color:var(--frost-dp);margin:0 18px}
@keyframes defile{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}
@media (prefers-reduced-motion:reduce){
  .cities{overflow-x:auto}
  .cities-track{animation:none;width:auto}
}

/* ===== Nous trouver ===== */
.contact-grid{display:grid;gap:28px}
@media(min-width:900px){.contact-grid{grid-template-columns:1fr 1fr}}
.contact-card{background:var(--white);border:1px solid var(--line);padding:28px;margin-bottom:18px}
.contact-card h3{font-size:17px;margin-bottom:12px;color:var(--night)}
.contact-card p,.contact-card address{color:var(--text-soft);font-style:normal;margin-bottom:5px}
.contact-card .mono{font-size:12px;color:var(--petrol);display:block;margin-bottom:10px}
.map-embed{border:1px solid var(--line);overflow:hidden;min-height:340px;display:flex}
.map-embed iframe{width:100%;height:100%;min-height:340px;border:0;display:block}
.map-consent{
  background:var(--night);color:var(--paper);padding:34px 30px;width:100%;
  display:flex;flex-direction:column;justify-content:center;gap:12px
}
.map-consent .mono{font-size:11px;color:var(--frost)}
.map-consent h3{color:var(--paper);font-size:19px}
.map-consent p{color:#adc0cf;font-size:14.5px;max-width:46ch}
.map-consent .btn{align-self:flex-start;margin-top:6px}
.map-consent .map-alt{font-size:13.5px;color:#8ea3b4}
.map-consent .map-alt a{color:var(--frost);text-decoration:underline}

/* ===== Formulaires ===== */
.quote-form{background:var(--white);border:1px solid var(--line);padding:30px;display:grid;gap:22px}
@media(min-width:700px){
  .quote-form{padding:40px}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:22px}
}
.form-group{display:flex;flex-direction:column;gap:7px}
.form-group label{
  font-family:"Libre Franklin",sans-serif;font-size:14.5px;font-weight:600;
  letter-spacing:0;color:var(--night)
}
.form-group .hint{font-family:"Libre Franklin",sans-serif;letter-spacing:0;text-transform:none;font-weight:400;color:var(--muted);font-size:13px}
.form-group input,.form-group select,.form-group textarea{
  font:inherit;font-size:16px;padding:13px 14px;border:1.5px solid var(--line);
  background:var(--paper);color:var(--ink);border-radius:0;transition:border-color .15s ease
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--petrol);box-shadow:inset 0 -3px 0 var(--frost)
}
.form-group textarea{resize:vertical;min-height:140px}
.form-group input[type="file"]{background:var(--paper);border:1.5px dashed var(--petrol-lt);padding:18px;font-size:14px}
.form-honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.radio-group{display:flex;flex-wrap:wrap;gap:9px}
.radio-option{
  display:flex;align-items:center;gap:8px;border:1.5px solid var(--line);padding:11px 15px;
  font-size:15px;cursor:pointer;background:var(--paper);transition:border-color .15s ease,background .15s ease
}
.radio-option:hover{border-color:var(--petrol-lt);background:var(--white)}
.radio-option input{accent-color:var(--petrol)}

/* ===== Bandeau d'appel ===== */
.cta-band{background:var(--petrol-dk);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-40px;width:280px;height:280px;
  background:var(--petrol);transform:rotate(45deg);opacity:.5
}
.cta-band .container{position:relative}
.cta-band .eyebrow{color:var(--frost);border-left-color:var(--frost)}
.cta-band h2{color:#fff;max-width:20ch;margin-bottom:16px}
.cta-band p{color:#bcd6e0;max-width:52ch;margin-bottom:30px;font-size:17px}

/* ===== Pages légales ===== */
.legal{max-width:800px}
.legal h2{font-size:clamp(21px,2.4vw,27px);margin:44px 0 16px;padding-bottom:10px;border-bottom:2px solid var(--frost-dp)}
.legal h2:first-child{margin-top:0}
.legal h3{font-size:17px;margin:26px 0 10px;color:var(--petrol)}
.legal p{margin-bottom:14px;color:var(--text-soft)}
.legal a{color:var(--petrol);text-decoration:underline;text-underline-offset:2px}
.legal a:hover{color:var(--frost-dp)}
.legal strong{color:var(--ink)}

.legal-list{display:grid;gap:0;border:1px solid var(--line);background:var(--line);grid-template-columns:1fr}
@media(min-width:640px){.legal-list{grid-template-columns:minmax(190px,32%) 1fr}}
.legal-list dt{
  background:var(--concrete);padding:13px 16px;
  font-family:"Libre Franklin",sans-serif;font-size:14px;font-weight:600;color:var(--night)
}
.legal-list dd{background:var(--white);padding:13px 16px;color:var(--ink)}
.legal-list dd[data-a-completer]{color:#a4562a;background:#fdf3ec}
.legal-list dd[data-a-completer]::before{content:"⚠ ";font-weight:700}

.legal-table{width:100%;border-collapse:collapse;border:1px solid var(--line);margin-bottom:20px}
.legal-table th,.legal-table td{padding:13px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.legal-table th{
  background:var(--concrete);width:33%;
  font-family:"Libre Franklin",sans-serif;font-size:14px;font-weight:600;color:var(--night)
}
.legal-table td{background:var(--white);color:var(--text-soft);font-size:15.5px}
@media(max-width:640px){
  .legal-table th,.legal-table td{display:block;width:100%}
}

.legal-ul{margin:0 0 16px;padding-left:0}
.legal-ul li{
  color:var(--text-soft);padding:10px 0 10px 18px;position:relative;border-bottom:1px solid var(--line)
}
.legal-ul li::before{content:"";position:absolute;left:0;top:19px;width:9px;height:2px;background:var(--frost-dp)}

.legal-date{margin-top:44px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}

/* mention RGPD sous les formulaires */
.form-notice{
  font-size:13.5px;color:var(--muted);line-height:1.55;
  border-left:3px solid var(--frost-dp);padding-left:14px
}
.form-notice a{color:var(--petrol);text-decoration:underline}

/* ===== Pied de page ===== */
.site-footer{background:var(--void);color:#7d92a3;padding:44px 0;font-size:14px}
.site-footer .container{display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center}
@media(min-width:700px){.site-footer .container{flex-direction:row;justify-content:space-between;text-align:left}}
.site-footer strong{color:var(--paper);font-family:"Libre Franklin",sans-serif;font-weight:800;letter-spacing:-0.02em;text-transform:uppercase}
.site-footer .mono{font-size:12px;color:var(--frost-dp)}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}
.footer-links a{
  font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:#8ea3b4;border-bottom:1px solid transparent;padding-bottom:2px;transition:color .14s,border-color .14s
}
.footer-links a:hover{color:var(--frost);border-bottom-color:var(--frost-dp)}

/* ===== Apparition au défilement =====
   On anime le déplacement, jamais l'opacité : si l'animation ne se joue
   pas, le contenu reste lisible. Un bloc décalé vaut mieux qu'un bloc
   invisible.
   ======================================================================== */
@keyframes monte{
  from{transform:translateY(26px)}
  to{transform:none}
}
.anim{animation:monte .62s cubic-bezier(.2,.7,.3,1)}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto}
}