/* =========================================================
   Z|SOM — feuille de style unique
   Conforme à la charte graphique v1.0 (16 août 2026)
   ========================================================= */

@font-face{font-family:'Poppins';src:url('../fonts/poppins-300.woff') format('woff');
  font-weight:300;font-style:normal;font-display:swap}
@font-face{font-family:'Poppins';src:url('../fonts/poppins-400.woff') format('woff');
  font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Poppins';src:url('../fonts/poppins-500.woff') format('woff');
  font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Poppins';src:url('../fonts/poppins-700.woff') format('woff');
  font-weight:700;font-style:normal;font-display:swap}

:root{
  --abysse:#0C2340;
  --signal:#1B4B8F;
  --or:#C6A34F;
  --or-clair:#E0C989;
  --or-texte:#816825;   /* or assombri : seul or admis en TEXTE sur fond clair (>=4,97:1) */
  --blanche:#F6F7F9;
  --protocole:#5A6B7D;
  --texte:#33445A;
  --bord:#DDE4EC;
  --conforme:#0F7355;
  --max:1180px;
  --pad:clamp(20px,5vw,56px);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Poppins',system-ui,Arial,sans-serif;color:var(--abysse);
  background:#fff;line-height:1.65;font-weight:300;font-size:clamp(15px,1.05vw,16.5px);
  -webkit-font-smoothing:antialiased}
img,svg,video{display:block;max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--or);outline-offset:3px;border-radius:2px}

.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--pad)}
.skip{position:absolute;left:-9999px;top:0;background:var(--or);color:var(--abysse);
  padding:12px 20px;font-weight:500;z-index:2000}
.skip:focus{left:0}

/* ---------- en-tête ---------- */
.nav{position:sticky;top:0;z-index:1000;background:rgba(12,35,64,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.12)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding-block:14px}
.nav img{width:118px}
.nav ul{display:flex;gap:28px;list-style:none}
.nav a{color:#C3CEDC;text-decoration:none;font-size:.86rem;font-weight:400;
  letter-spacing:.04em;padding-block:6px;border-bottom:2px solid transparent}
.nav a:hover,.nav a:focus-visible{color:#fff;border-bottom-color:var(--or)}
.nav .cta{display:inline-block;background:var(--or);color:var(--abysse);
  padding:11px 20px;border-radius:4px;font-weight:500;font-size:.84rem;
  text-decoration:none;border:none;white-space:nowrap;transition:background .2s}
.nav .cta:hover{background:var(--or-clair)}
@media(max-width:900px){.nav ul{display:none}}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;
  padding-block:clamp(64px,9vw,116px);
  background:var(--abysse) url('../img/hero-poster.jpg') center/cover no-repeat}
.hero video.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero .scrim{position:absolute;inset:0;z-index:0;background:linear-gradient(100deg,
  rgba(12,35,64,.97) 0%,rgba(12,35,64,.93) 34%,rgba(12,35,64,.72) 62%,
  rgba(12,35,64,.42) 100%)}
.hero::before{content:"";position:absolute;inset:0 auto 0 0;width:5px;
  background:var(--or);z-index:2}
.hero .wrap{position:relative;z-index:1}
.eyebrow{font-size:.72rem;font-weight:500;letter-spacing:.24em;color:var(--or-clair);
  text-transform:uppercase;margin-bottom:20px}
.hero h1{font-size:clamp(2.1rem,5.4vw,3.65rem);font-weight:700;line-height:1.08;
  letter-spacing:-.02em;margin-bottom:16px;max-width:16ch}
.hero h1 span{color:var(--or-clair)}
.hero .sub{font-size:clamp(1rem,1.7vw,1.22rem);font-weight:500;color:var(--or-clair);
  margin-bottom:26px}
.hero p{color:#C3CEDC;max-width:60ch;margin-bottom:34px}
.actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{display:inline-block;padding:15px 28px;border-radius:4px;text-decoration:none;
  font-weight:500;font-size:.95rem;transition:.2s;border:1.5px solid transparent}
.btn-or{background:var(--or);color:var(--abysse)}
.btn-or:hover{background:var(--or-clair)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{border-color:var(--or);color:var(--or-clair)}
.hero .strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:26px;margin-top:52px;padding-top:28px;border-top:1px solid rgba(255,255,255,.16)}
.hero .strip b{display:block;font-size:.72rem;font-weight:500;letter-spacing:.16em;
  color:var(--or-clair);margin-bottom:6px}
.hero .strip span{font-size:.86rem;color:#C3CEDC}

/* ---------- sections ---------- */
section{padding-block:clamp(56px,7.5vw,96px)}
.alt{background:var(--blanche)}
.sec-num{font-size:.72rem;font-weight:500;letter-spacing:.24em;color:var(--or-texte);
  text-transform:uppercase;margin-bottom:12px}
h2{font-size:clamp(1.6rem,3.3vw,2.35rem);font-weight:700;letter-spacing:-.015em;
  line-height:1.15;margin-bottom:16px;max-width:22ch}
h3{font-size:1.06rem;font-weight:500;margin-bottom:8px}
.lead{font-size:clamp(1rem,1.5vw,1.14rem);font-weight:400;max-width:66ch;
  color:var(--abysse)}
p{color:var(--texte);max-width:68ch}
.rule{height:3px;width:60px;background:var(--or);margin:22px 0 34px}

.grid{display:grid;gap:26px}
.g2{grid-template-columns:1fr 1fr}
@media(max-width:780px){.g2{grid-template-columns:1fr}}
.g3{grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}

.proc{border-top:3px solid var(--or);padding-top:20px}
.proc .n{font-size:1.6rem;font-weight:700;color:var(--or-texte);line-height:1;margin-bottom:10px}
.proc p{font-size:.92rem}
.proc .kit{margin-top:14px;padding-left:14px;border-left:2px solid var(--bord);
  font-size:.8rem;color:var(--protocole);font-weight:400}

.card{background:#fff;border:1px solid var(--bord);border-radius:10px;padding:28px}
.card p{font-size:.9rem}

/* bloc preuve */
.proof{background:var(--abysse);color:#fff;border-radius:12px;padding:clamp(28px,4.5vw,52px)}
.proof h2{color:#fff}
.proof p{color:#C3CEDC}
.proof .sec-num{color:var(--or-clair)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:28px;
  margin-top:38px;padding-top:32px;border-top:1px solid rgba(255,255,255,.18)}
.steps b{display:block;font-size:.72rem;font-weight:500;letter-spacing:.14em;
  color:var(--or-clair);margin-bottom:8px}
.steps p{font-size:.88rem}

/* offre */
.offer{border:1px solid var(--bord);border-radius:12px;padding:32px;background:#fff;
  display:flex;flex-direction:column}
.offer.dark{background:var(--abysse);border-color:var(--abysse);color:#fff}
.offer.dark p{color:#C3CEDC}
.offer .tag{font-size:.7rem;font-weight:500;letter-spacing:.2em;color:var(--or-texte);
  margin-bottom:12px}
.offer h3{font-size:1.35rem;font-weight:700;margin-bottom:12px}
.offer p{flex:1;font-size:.92rem}
.offer .price{margin-top:22px;padding-top:18px;border-top:1px solid var(--bord);
  font-size:1.45rem;font-weight:700}
.offer.dark .price{border-color:rgba(255,255,255,.2)}
.offer .price small{display:block;font-size:.8rem;font-weight:400;color:var(--protocole);
  margin-top:4px}
.offer.dark .price small{color:#8FA0B4}

table{width:100%;border-collapse:collapse;margin-top:36px;font-size:.92rem}
th{text-align:left;font-size:.7rem;font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--protocole);padding:0 16px 10px 0;
  border-bottom:2px solid var(--abysse)}
td{padding:14px 16px 14px 0;border-bottom:1px solid var(--bord);color:var(--texte);
  vertical-align:top}
td strong{font-weight:500;color:var(--abysse)}
@media(max-width:640px){
  table,thead,tbody,tr,td,th{display:block;width:100%}
  thead{display:none}
  tr{border-bottom:1px solid var(--bord);padding-block:12px}
  td{border:none;padding:2px 0}
}

.eng{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:20px 34px;margin-top:26px}
.eng li{display:flex;gap:12px;align-items:flex-start}
.eng i{width:9px;height:9px;background:var(--or);flex:none;margin-top:8px;display:block}
.eng b{display:block;font-weight:500;margin-bottom:2px}
.eng span{font-size:.88rem;color:var(--texte)}

/* contact */
.contact{background:var(--abysse);color:#fff}
.contact h2{color:#fff}
.contact p{color:#C3CEDC}
.contact .box{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:34px;align-items:start;margin-top:38px}
.contact .lines a{display:block;font-size:clamp(1.05rem,2vw,1.35rem);font-weight:500;
  text-decoration:none;margin-bottom:12px;color:#fff}
.contact .lines a:hover{color:var(--or-clair)}
.contact .zone{font-size:.88rem;color:#8FA0B4;margin-top:18px}

footer{background:var(--abysse);color:#8FA0B4;font-size:.8rem;font-weight:300;
  border-top:1px solid rgba(255,255,255,.14);padding-block:34px}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px 34px;justify-content:space-between;
  align-items:center}
footer a{color:#C3CEDC;text-decoration:none}
footer a:hover{color:var(--or-clair);text-decoration:underline}
footer .legal{max-width:74ch;margin-top:16px;line-height:1.6;font-size:.72rem}

/* page mentions légales */
.doc{padding-block:clamp(48px,6vw,80px)}
.doc h1{font-size:clamp(1.7rem,3.6vw,2.4rem);font-weight:700;margin-bottom:8px}
.doc h2{font-size:1.15rem;margin:34px 0 10px;max-width:none}
.doc p,.doc li{font-size:.94rem;margin-bottom:10px}
.doc ul{padding-left:20px}
.doc .todo{background:#FFF9EC;border-left:3px solid var(--or);padding:14px 18px;
  border-radius:0 6px 6px 0;font-size:.88rem;margin-bottom:14px}

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

/* =========================================================
   v2 — interaction, révélations, modules
   ========================================================= */

/* barre de progression de lecture */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--or);
  z-index:2000;transition:width .08s linear}

/* révélation au défilement */
.rv{opacity:0;transform:translateY(26px);
  transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
.rv.on{opacity:1;transform:none}
.rv-d1{transition-delay:.09s}.rv-d2{transition-delay:.18s}
.rv-d3{transition-delay:.27s}.rv-d4{transition-delay:.36s}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* micro-interactions */
.card,.proc,.offer{transition:transform .3s cubic-bezier(.22,.61,.36,1),
  box-shadow .3s,border-color .3s}
.card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(12,35,64,.13);
  border-color:#C6D0DC}
.proc:hover .n{color:var(--or-clair)}
.btn{position:relative;overflow:hidden}
.btn-or:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(198,163,79,.34)}

/* ---------- module : démonstration du balayage ---------- */
.demo{background:var(--abysse);color:#fff;border-radius:14px;overflow:hidden;
  border:1px solid rgba(255,255,255,.1)}
.demo .top{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:baseline;
  justify-content:space-between;padding:26px clamp(20px,3vw,34px) 18px}
.demo h3{font-size:1.12rem;font-weight:500;color:#fff;margin:0}
.demo .hint{font-size:.82rem;color:var(--or-clair);font-weight:400}
.demo canvas{display:block;width:100%;height:clamp(260px,38vw,420px);
  cursor:crosshair;touch-action:none;background:#08192E}
.demo .bar{display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;
  justify-content:space-between;padding:18px clamp(20px,3vw,34px) 24px;
  border-top:1px solid rgba(255,255,255,.1)}
.demo .gauge{flex:1;min-width:200px}
.demo .gauge .track{height:6px;background:rgba(255,255,255,.13);border-radius:3px;
  overflow:hidden;margin-top:9px}
.demo .gauge .fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--or),var(--or-clair));
  transition:width .18s linear}
.demo .gauge b{font-size:.7rem;font-weight:500;letter-spacing:.16em;color:var(--or-clair)}
.demo .val{font-size:1.9rem;font-weight:700;font-variant-numeric:tabular-nums;
  line-height:1;color:#fff}
.demo .reset{background:none;border:1.5px solid rgba(255,255,255,.32);color:#fff;
  padding:11px 22px;border-radius:4px;font:inherit;font-size:.85rem;font-weight:500;
  cursor:pointer;transition:.2s;font-family:inherit}
.demo .reset:hover{border-color:var(--or);color:var(--or-clair)}
.legende{font-size:.78rem;color:var(--protocole);margin-top:14px;max-width:70ch}

/* ---------- module : saisonnalité ---------- */
.saison{display:grid;grid-template-columns:repeat(12,1fr);gap:5px;margin-top:30px}
.saison div{text-align:center;padding:16px 2px 12px;border-radius:6px;
  background:var(--blanche);border:1px solid var(--bord);font-size:.72rem;
  font-weight:500;color:var(--protocole);transition:.4s;position:relative}
.saison div.risque{background:rgba(198,163,79,.16);border-color:rgba(198,163,79,.5);
  color:var(--abysse)}
.saison div.agir{background:var(--abysse);border-color:var(--abysse);color:#fff}
.saison div.agir::after{content:"AGIR";position:absolute;left:0;right:0;bottom:-19px;
  font-size:.58rem;letter-spacing:.14em;color:var(--or-texte)}
.saison-lg{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:34px;font-size:.8rem;
  color:var(--protocole)}
.saison-lg span{display:inline-flex;align-items:center;gap:8px}
.saison-lg i{width:12px;height:12px;border-radius:3px;display:block}
@media(max-width:700px){.saison{grid-template-columns:repeat(6,1fr);gap:6px}
  .saison div.agir::after{display:none}}

/* ---------- module : certificat ---------- */
.certif{background:#fff;border:1px solid var(--bord);border-radius:12px;
  padding:clamp(22px,3vw,34px);box-shadow:0 18px 46px rgba(12,35,64,.09)}
.certif .head{display:flex;justify-content:space-between;align-items:flex-start;
  gap:20px;padding-bottom:16px;border-bottom:2px solid var(--abysse)}
.certif .head img{width:104px}
.certif .ref{font-size:.68rem;letter-spacing:.14em;color:var(--protocole);text-align:right}
.certif dl{display:grid;grid-template-columns:auto 1fr;gap:11px 22px;margin-top:20px;
  font-size:.86rem}
.certif dt{color:var(--protocole)}
.certif dd{font-weight:500;font-variant-numeric:tabular-nums}
.certif .line{opacity:0;transform:translateX(-10px);
  transition:opacity .5s,transform .5s}
.certif .line.on{opacity:1;transform:none}
.certif .stamp{margin-top:22px;padding-top:16px;border-top:1px solid var(--bord);
  display:flex;align-items:center;gap:12px;font-size:.82rem;font-weight:500;
  color:var(--conforme)}
.certif .stamp i{width:10px;height:10px;border-radius:50%;background:var(--conforme);
  display:block;box-shadow:0 0 0 0 rgba(15,115,85,.5);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(15,115,85,.45)}
  70%{box-shadow:0 0 0 12px rgba(15,115,85,0)}100%{box-shadow:0 0 0 0 rgba(15,115,85,0)}}

/* ---------- module : estimateur ---------- */
.estim{background:var(--abysse);color:#fff;border-radius:14px;
  padding:clamp(26px,3.5vw,44px);display:grid;
  grid-template-columns:minmax(260px,1fr) minmax(260px,1fr);gap:clamp(28px,4vw,52px)}
@media(max-width:820px){.estim{grid-template-columns:1fr}}
.estim label{display:block;font-size:.7rem;font-weight:500;letter-spacing:.16em;
  color:var(--or-clair);margin-bottom:10px}
.estim .field{margin-bottom:26px}
.estim input[type=range]{width:100%;accent-color:var(--or);height:26px;cursor:pointer}
.estim .surf{font-size:2.1rem;font-weight:700;font-variant-numeric:tabular-nums;
  line-height:1;margin-bottom:6px}
.estim .surf small{font-size:.9rem;font-weight:400;color:#8FA0B4}
.estim .types{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.estim .types button{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  color:#C3CEDC;padding:13px 12px;border-radius:6px;font:inherit;font-size:.82rem;
  font-weight:400;cursor:pointer;transition:.2s;text-align:left;line-height:1.35}
.estim .types button:hover{border-color:rgba(198,163,79,.6);color:#fff}
.estim .types button[aria-pressed=true]{background:var(--or);border-color:var(--or);
  color:var(--abysse);font-weight:500}
.estim .out{border-left:1px solid rgba(255,255,255,.16);padding-left:clamp(24px,3vw,44px)}
@media(max-width:820px){.estim .out{border-left:none;border-top:1px solid rgba(255,255,255,.16);
  padding-left:0;padding-top:30px}}
.estim .res{margin-bottom:26px}
.estim .res b{display:block;font-size:.7rem;font-weight:500;letter-spacing:.16em;
  color:var(--or-clair);margin-bottom:8px}
.estim .res .num{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:700;
  font-variant-numeric:tabular-nums;line-height:1.15}
.estim .res .num em{font-style:normal;color:var(--or-clair)}
.estim .res small{display:block;font-size:.8rem;color:#8FA0B4;margin-top:6px}
.estim .avert{font-size:.75rem;color:#8FA0B4;line-height:1.55;margin-top:22px;
  padding-top:18px;border-top:1px solid rgba(255,255,255,.16)}
.estim .btn{margin-top:20px}

/* ---------- accroches chiffrées ---------- */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  gap:24px;margin-top:38px}
.kpis div{border-top:3px solid var(--or);padding-top:18px}
.kpis .n{font-size:clamp(1.7rem,3vw,2.3rem);font-weight:700;line-height:1;
  font-variant-numeric:tabular-nums;margin-bottom:8px}
.kpis p{font-size:.86rem}

/* correctifs de couleur : la règle globale p{color:var(--texte)} écrasait
   les valeurs affichées sur fond marine */
.estim .surf,.estim .res .num{color:#fff}
.estim .res small,.estim .avert{color:#8FA0B4}
.kpis .n{color:var(--abysse)}
.demo .hint{color:var(--or-clair)}

/* ═══════════ v3 — blocs ajoutés depuis la plaquette institutionnelle v3 ═══════════ */

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* étiquette de rubrique réutilisable */
.card .tag,.note .tag,.limites .tag,.oeth .tag{font-size:.7rem;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--or-texte);margin-bottom:10px}
.card .tag{margin-bottom:8px}
.card em{font-style:italic}

/* encadré d'explication technique */
.note{margin-top:34px;border-left:3px solid var(--or);
  background:rgba(198,163,79,.07);padding:24px 26px;border-radius:0 8px 8px 0}
.note p{font-size:.92rem;margin:0}
.note .tag{color:var(--or-texte)}

/* bloc des limites — fond marine, assumé */
.limites{margin-top:46px;background:var(--abysse);color:#fff;border-radius:12px;
  padding:clamp(26px,4vw,44px)}
.limites .tag{color:var(--or-clair)}
.limites p{color:#C3CEDC;font-size:.94rem}
.limites p+p{margin-top:14px}
.limites .fin{margin-top:20px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.18);color:#fff;font-weight:500}

/* bloc OETH */
.oeth{margin-top:36px;border:1px solid var(--bord);border-radius:12px;
  padding:clamp(24px,3.4vw,36px);background:#fff}
.oeth p{font-size:.92rem}
.oeth .fin{margin-top:14px;font-size:.78rem;color:var(--protocole)}

/* estimateur v3 */
.estim .palier{margin-top:10px;font-size:.8rem;color:var(--or-clair);font-weight:500}
.estim .types{grid-template-columns:1fr 1fr 1fr}
@media(max-width:520px){.estim .types{grid-template-columns:1fr}}
.estim .types button small{display:block;font-size:.72rem;font-weight:400;
  opacity:.78;margin-top:3px}
.estim .types button[aria-pressed=true] small{opacity:.85}

/* la liste .eng sert aussi de détail du certificat */
.eng span b{color:var(--abysse)}
/* alignement bas des mentions matériel dans les 3 procédés */
.proc{display:flex;flex-direction:column}
.proc .kit{margin-top:auto;padding-top:14px}

/* rappel : sur fond marine, l'etiquette reprend l'or clair (9,69:1) */
.offer.dark .tag,.limites .tag,.proof .sec-num{color:var(--or-clair)}