/* ============================================================
   SNOW — Le détail qui change tout
   Design system + composants. Aucune dépendance externe.
   ============================================================ */

/* ---------- Typographie auto-hébergée (optionnelle) ----------
   Déposer les .woff2 dans /assets/fonts/ (voir assets/fonts/README.md).
   Si les fichiers sont absents, le navigateur bascule sur la pile système :
   le site reste parfaitement lisible.                            */
@font-face{font-family:'Poppins';font-style:normal;font-weight:300;font-display:swap;
  src:url('../fonts/poppins-300.woff2') format('woff2')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:400;font-display:swap;
  src:url('../fonts/poppins-400.woff2') format('woff2')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:500;font-display:swap;
  src:url('../fonts/poppins-500.woff2') format('woff2')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:600;font-display:swap;
  src:url('../fonts/poppins-600.woff2') format('woff2')}

/* ---------- Tokens ---------- */
:root{
  --ink:#0a0a0a;
  --ink-2:#3d3d3d;
  --ink-3:#757575;
  --line:#e4e4e4;
  --line-2:#f0f0f0;
  --paper:#ffffff;
  --paper-2:#fafafa;
  --paper-3:#f4f4f5;
  --accent:#0a0a0a;
  --ok:#0f7b3f;
  --warn:#b45309;

  --font:'Poppins',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;

  --w:1180px;
  --gut:clamp(20px,5vw,48px);
  --r:2px;
  --t:.35s cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}}

body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font);font-weight:300;font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}

img,svg{max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}

/* ---------- Utilitaires ---------- */
.wrap{width:100%;max-width:var(--w);margin-inline:auto;padding-inline:var(--gut)}
.section{padding-block:clamp(64px,9vw,120px)}
.section--tight{padding-block:clamp(44px,6vw,72px)}
.section--paper2{background:var(--paper-2)}
.section--ink{background:var(--ink);color:#fff}
.center{text-align:center}
.stack>*+*{margin-top:1rem}
.hr{height:1px;background:var(--line);border:0;margin:0}
.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}

/* ---------- Titres ---------- */
h1,h2,h3,h4{font-weight:300;line-height:1.12;letter-spacing:-.02em;margin:0}
.h-xl{font-size:clamp(2.5rem,6.4vw,4.6rem)}
.h-l {font-size:clamp(1.9rem,4.2vw,3.1rem)}
.h-m {font-size:clamp(1.35rem,2.6vw,1.85rem)}
.h-s {font-size:1.05rem;font-weight:500;letter-spacing:0}
.eyebrow{font-size:.7rem;font-weight:500;letter-spacing:.22em;text-transform:uppercase;
  color:var(--ink-3);margin:0 0 1.25rem}
.lead{font-size:clamp(1.02rem,1.5vw,1.18rem);color:var(--ink-2);max-width:58ch}
.muted{color:var(--ink-3)}
.small{font-size:.86rem}
strong,b{font-weight:500}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:1.02em 1.9em;border:1px solid var(--ink);border-radius:var(--r);
  background:var(--ink);color:#fff;font-size:.82rem;font-weight:500;
  letter-spacing:.13em;text-transform:uppercase;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
  text-align:center}
.btn:hover{background:#fff;color:var(--ink);transform:translateY(-1px)}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--inv{background:#fff;color:var(--ink);border-color:#fff}
.btn--inv:hover{background:transparent;color:#fff}
.btn--sm{padding:.78em 1.4em;font-size:.72rem}
.btn--full{width:100%}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.linkline{display:inline-flex;align-items:center;gap:.5em;font-size:.8rem;font-weight:500;
  letter-spacing:.13em;text-transform:uppercase;border-bottom:1px solid var(--ink);
  padding-bottom:.25em;transition:gap var(--t)}
.linkline:hover{gap:.9em}

/* ---------- Header ---------- */
.hdr{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);
  backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line)}
.hdr__in{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
  min-height:74px}
.hdr__logo{display:flex;align-items:center;gap:.7rem;flex-shrink:0}
.hdr__logo svg{width:26px;height:26px}
.hdr__logo span{font-size:1.02rem;font-weight:300;letter-spacing:.42em;padding-left:.1em}
.nav{display:flex;align-items:center;gap:2.1rem}
.nav a{font-size:.78rem;font-weight:400;letter-spacing:.13em;text-transform:uppercase;
  color:var(--ink-2);position:relative;padding-block:.4rem;transition:color var(--t);
  white-space:nowrap}
.nav a::after{content:'';position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--ink);transition:right var(--t)}
.nav a:hover{color:var(--ink)}
.nav a:hover::after,.nav a[aria-current="page"]::after{right:0}
.hdr__cta{display:flex;align-items:center;gap:1rem}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r);
  background:#fff;cursor:pointer;align-items:center;justify-content:center}
.burger span{display:block;width:17px;height:1px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:'';position:absolute;left:0;width:17px;
  height:1px;background:var(--ink);transition:transform var(--t),top var(--t)}
.burger span::before{top:-5px}.burger span::after{top:5px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
@media(max-width:1010px){
  /* ancré sur le bord bas de l'en-tête, quelle que soit sa hauteur */
  .nav{position:absolute;inset:100% 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);padding:.5rem var(--gut) 1.5rem;
    max-height:calc(100dvh - 100%);overflow-y:auto;
    transform:translateY(-12px);opacity:0;visibility:hidden;transition:all var(--t)}
  .nav[data-open="true"]{transform:none;opacity:1;visibility:visible}
  .nav a{padding-block:1rem;border-bottom:1px solid var(--line-2);font-size:.9rem}
  .nav a::after{display:none}
  .burger{display:flex}
  .hdr__cta .btn{display:none}
}

/* ---------- Bandeau annonce ---------- */
.topbar{background:var(--ink);color:#fff;text-align:center;
  font-size:.71rem;letter-spacing:.16em;text-transform:uppercase;padding:.62rem 1rem}

/* ============================================================
   VISUEL PRODUIT
   L'illustration est un SVG : net à toute résolution, quelques kilo-octets.
   Le fond légèrement teinté et l'ombre douce détachent la plaque blanche.
   ============================================================ */
.visuel{
  --taille:100%;
  width:var(--taille);margin:0 auto;position:relative;
  transition:transform var(--t)
}
.visuel img{
  display:block;width:100%;height:auto;border-radius:3px;background:#fff;
  box-shadow:0 1px 2px rgba(0,0,0,.05),
             0 18px 42px -20px rgba(10,10,16,.30),
             0 0 0 1px rgba(0,0,0,.055)
}
.visuel--grand img{
  box-shadow:0 2px 4px rgba(0,0,0,.05),
             0 30px 66px -26px rgba(10,10,16,.34),
             0 0 0 1px rgba(0,0,0,.06)
}
@media (prefers-reduced-motion:no-preference){
  .card:hover .visuel{transform:translateY(-4px)}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(120% 90% at 78% 12%,#f6f6f7 0%,#fff 58%)}
.hero__in{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(2rem,5vw,4.5rem);
  align-items:center;padding-block:clamp(56px,8vw,104px)}
.hero h1{margin-bottom:1.4rem}
.hero .lead{margin-bottom:2.3rem}
.hero__cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-bottom:2.4rem}
.hero__pts{display:flex;flex-wrap:wrap;gap:1.4rem 2rem;font-size:.82rem;color:var(--ink-2)}
.hero__pts span{display:flex;align-items:center;gap:.5rem}
@media(max-width:860px){.hero__in{grid-template-columns:1fr;text-align:center}
  .hero .lead{margin-inline:auto}.hero__cta,.hero__pts{justify-content:center}
  .hero__art{order:-1}}

/* ---------- Grilles ---------- */
.grid{display:grid;gap:clamp(1.5rem,3vw,2.6rem)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
@media(max-width:980px){.grid--4{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid--3,.grid--4,.grid--2{grid-template-columns:1fr}}

/* ---------- Étapes ---------- */
.step{position:relative;padding-top:2.6rem;border-top:1px solid var(--line)}
.step__n{position:absolute;top:1.15rem;left:0;font-size:.7rem;letter-spacing:.2em;
  color:var(--ink-3)}
.step h3{margin-bottom:.6rem}
.step p{margin:0;color:var(--ink-2);font-size:.95rem}

/* ---------- Carte produit ---------- */
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;transition:border-color var(--t),box-shadow var(--t),transform var(--t)}
.card:hover{border-color:#c9c9c9;box-shadow:0 18px 50px -22px rgba(0,0,0,.28);
  transform:translateY(-3px)}
.card__media{position:relative;aspect-ratio:1/1;display:grid;place-items:center;
  background:linear-gradient(160deg,#f5f5f7,#e7e7ec);padding:14% 12% 16%;overflow:hidden}
.card__tag{position:absolute;top:14px;left:14px;z-index:5;background:var(--ink);color:#fff;
  font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;padding:.4em .8em;border-radius:var(--r)}
.card__body{padding:1.5rem 1.5rem 1.7rem;display:flex;flex-direction:column;flex:1;gap:.55rem}
.card__body h3{font-size:1.16rem;font-weight:400}
.card__body p{margin:0;font-size:.9rem;color:var(--ink-3);flex:1}
.card__price{font-size:1.28rem;font-weight:400;letter-spacing:-.01em}
.card__price small{font-size:.72rem;color:var(--ink-3);letter-spacing:.06em;font-weight:300}
.card__foot{display:flex;align-items:center;justify-content:space-between;gap:1rem;
  margin-top:.5rem}

/* ============================================================
   COURBE — visibilité cumulée
   Une seule série, une seule échelle. Grille effacée, tracé fin,
   annotations sélectives : le message est la forme, pas les chiffres.
   ============================================================ */
.courbe{margin:0}
.courbe__cadre{position:relative;border-radius:4px;overflow:hidden}
.courbe__svg{display:block;width:100%;height:auto;
  font-family:var(--font);touch-action:pan-y}
.courbe__info{position:absolute;transform:translateY(-100%);pointer-events:none;
  background:rgba(255,255,255,.97);color:var(--ink);border:1px solid var(--line);
  border-radius:3px;padding:.65rem .8rem;min-width:190px;max-width:240px;
  box-shadow:0 12px 28px -14px rgba(0,0,0,.4);z-index:3}
.courbe__info b{display:block;font-size:.86rem;font-weight:500;margin-bottom:.15rem}
.courbe__info span{display:block;font-size:.78rem;color:var(--ink-3)}
.courbe__info em{display:block;font-style:normal;font-size:.78rem;color:var(--ink-2);
  margin-top:.45rem;padding-top:.45rem;border-top:1px solid var(--line-2);line-height:1.5}
.courbe__legende{margin:.9rem 0 0;font-size:.74rem;color:var(--ink-3);line-height:1.6}
.courbe[data-theme="bourse"] .courbe__info,
.courbe[data-theme="contraste"] .courbe__info{background:rgba(16,16,20,.97);
  color:#f2f2f5;border-color:#2a2a32}
.courbe[data-theme="bourse"] .courbe__info em,
.courbe[data-theme="contraste"] .courbe__info em{color:#c9c9d2;border-top-color:#2a2a32}
.courbe[data-theme="bourse"] .courbe__info span,
.courbe[data-theme="contraste"] .courbe__info span{color:#9a9aa6}

/* ---------- Stock restant ---------- */
.stock{display:inline-flex;align-items:center;gap:.55em;margin:.2rem 0 0;
  font-size:.78rem;letter-spacing:.03em;color:#8a5200}
.stock::before{content:'';flex:0 0 auto;width:6px;height:6px;border-radius:50%;
  background:#d98a12;box-shadow:0 0 0 3px rgba(217,138,18,.16)}
.pdp .stock{margin-top:.5rem}

/* ---------- Fiche produit ---------- */
.pdp{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4.5rem);
  align-items:start;padding-block:clamp(40px,6vw,72px)}
@media(max-width:900px){.pdp{grid-template-columns:1fr}}
.pdp__gal{position:sticky;top:104px;background:linear-gradient(160deg,#f6f6f8,#e6e6ec);
  border:1px solid var(--line);border-radius:var(--r);padding:clamp(2rem,5vw,3.6rem);
  display:grid;place-items:center;min-height:min(62vh,540px)}
@media(max-width:900px){.pdp__gal{position:static;min-height:0}}
.pdp h1{margin-bottom:1rem}
.pdp__price{font-size:2rem;font-weight:300;margin:1.4rem 0 .3rem;letter-spacing:-.02em;
  display:flex;flex-wrap:wrap;align-items:baseline;gap:.15rem .7rem}
.pdp__price small{font-size:.78rem;color:var(--ink-3);letter-spacing:.06em;
  line-height:1.5;flex:0 1 auto}
.pdp__opts{margin:2rem 0 0;border-top:1px solid var(--line);padding-top:1.7rem}
.field{margin-bottom:1.3rem}
.field>label{display:block;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:.6rem}
.opts{display:flex;flex-wrap:wrap;gap:.55rem}
.opt{position:relative}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt span{display:inline-block;padding:.7em 1.15em;border:1px solid var(--line);
  border-radius:var(--r);font-size:.85rem;cursor:pointer;transition:all var(--t)}
.opt input:checked+span{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.opt input:focus-visible+span{outline:2px solid var(--ink);outline-offset:2px}
.qty{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:var(--r)}
.qty button{width:44px;height:44px;background:none;border:0;cursor:pointer;font-size:1.05rem;
  color:var(--ink-2)}
.qty button:hover{color:var(--ink)}
.qty input{width:52px;height:44px;border:0;border-inline:1px solid var(--line);
  text-align:center;font:inherit;font-size:.95rem;background:none;-moz-appearance:textfield}
.qty input::-webkit-outer-spin-button,.qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.pdp__buy{display:flex;flex-direction:column;gap:.75rem;margin-top:1.9rem}
.pdp__reassure{display:grid;gap:.65rem;margin-top:1.8rem;padding-top:1.6rem;
  border-top:1px solid var(--line);font-size:.85rem;color:var(--ink-2)}
.pdp__reassure span{display:flex;gap:.7rem;align-items:flex-start}
.pdp__reassure svg{flex:0 0 16px;margin-top:.28em;color:var(--ink-3)}

/* ---------- Accordéon ---------- */
.acc{border-top:1px solid var(--line)}
.acc details{border-bottom:1px solid var(--line)}
.acc summary{list-style:none;cursor:pointer;padding:1.4rem 2.5rem 1.4rem 0;position:relative;
  font-size:1rem;font-weight:400}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:'';position:absolute;right:.45rem;top:1.85rem;width:11px;height:11px;
  border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);
  transform:rotate(45deg);transition:transform var(--t)}
.acc details[open] summary::after{transform:rotate(-135deg);top:2.1rem}
.acc .acc__c{padding:0 2.5rem 1.6rem 0;color:var(--ink-2);font-size:.95rem;max-width:70ch}
.acc .acc__c p:first-child{margin-top:0}
.acc .acc__c p:last-child{margin-bottom:0}

/* ---------- Formulaire ---------- */
.form{display:grid;gap:1.25rem;max-width:640px}
.form label{display:block;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:.55rem}
.form input,.form textarea,.form select{width:100%;padding:.95rem 1.05rem;border:1px solid var(--line);
  border-radius:var(--r);font:inherit;font-size:.95rem;background:#fff;color:var(--ink);
  transition:border-color var(--t)}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--ink)}
.form textarea{min-height:140px;resize:vertical}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
@media(max-width:600px){.form .row{grid-template-columns:1fr}}
.form .check{display:flex;gap:.75rem;align-items:flex-start;font-size:.85rem;color:var(--ink-2)}
.form .check input{width:auto;margin-top:.28em;flex:0 0 auto}
.form .check label{text-transform:none;letter-spacing:0;font-size:.85rem;color:var(--ink-2);margin:0}
.hint{font-size:.8rem;color:var(--ink-3);margin:.45rem 0 0}
.formnote{padding:1rem 1.15rem;border:1px solid var(--line);border-radius:var(--r);
  background:var(--paper-2);font-size:.85rem;color:var(--ink-2)}

/* ---------- Bandeau chiffres ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;text-align:center}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr);gap:2.4rem}}
.stat b{display:block;font-size:clamp(2rem,4vw,2.9rem);font-weight:300;letter-spacing:-.03em}
.stat span{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}

/* ---------- Bandeau défilant ---------- */
.marquee{overflow:hidden;border-block:1px solid var(--line);padding-block:1.05rem;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee__t{display:flex;gap:3.6rem;width:max-content;
  font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3)}
@media (prefers-reduced-motion:no-preference){.marquee__t{animation:mq 34s linear infinite}}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- Témoignages ---------- */
.quote{border:1px solid var(--line);border-radius:var(--r);padding:2rem 1.9rem;background:#fff}
.quote__stars{display:flex;gap:3px;color:#FBBC04;margin-bottom:1.1rem}
.quote p{margin:0 0 1.3rem;font-size:.98rem;color:var(--ink-2)}
.quote footer{font-size:.78rem;color:var(--ink-3);letter-spacing:.06em}
.quote footer b{display:block;color:var(--ink);font-weight:500;letter-spacing:0;font-size:.9rem}

/* ---------- Footer ---------- */
.ftr{background:var(--ink);color:#a9a9a9;padding-block:clamp(52px,7vw,80px) 0;font-size:.88rem}
.ftr a{color:#d8d8d8;transition:color var(--t)}
.ftr a:hover{color:#fff}
.ftr__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2.6rem}
@media(max-width:900px){.ftr__top{grid-template-columns:1fr 1fr;gap:2.4rem}}
@media(max-width:520px){.ftr__top{grid-template-columns:1fr}}
.ftr h4{color:#fff;font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  margin-bottom:1.15rem;font-weight:500}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:.68rem}
.ftr__brand svg{width:24px;height:24px;color:#fff}
.ftr__brand .n{display:flex;align-items:center;gap:.7rem;color:#fff;font-size:1rem;
  letter-spacing:.4em;margin-bottom:1rem}
.ftr__brand p{margin:0;max-width:36ch;line-height:1.7}
.ftr__legal{margin-top:3.4rem;border-top:1px solid #222;padding-block:1.6rem;
  display:flex;flex-wrap:wrap;gap:.8rem 1.8rem;justify-content:space-between;
  font-size:.76rem;color:#777}
.ftr__legal ul{display:flex;flex-wrap:wrap;gap:1.4rem}
.pay{display:flex;align-items:center;gap:.6rem;color:#8c8c8c;font-size:.72rem;
  letter-spacing:.1em;text-transform:uppercase}

/* ---------- Fil d'ariane ---------- */
.crumbs{font-size:.75rem;color:var(--ink-3);letter-spacing:.06em;padding-block:1.4rem;
  border-bottom:1px solid var(--line-2)}
.crumbs a:hover{color:var(--ink)}
.crumbs span{margin-inline:.5rem;opacity:.5}

/* ---------- Pages légales ---------- */
.doc{max-width:74ch;padding-block:clamp(48px,6vw,80px)}
.doc h2{margin:2.8rem 0 .9rem;font-size:1.3rem;font-weight:500;letter-spacing:0}
.doc h3{margin:1.9rem 0 .6rem;font-size:1rem;font-weight:500}
.doc p,.doc li{color:var(--ink-2);font-size:.95rem}
.doc ul{padding-left:1.15rem}
.doc li{margin-bottom:.45rem}
.doc table{width:100%;border-collapse:collapse;margin:1.2rem 0;font-size:.9rem}
.doc td,.doc th{border:1px solid var(--line);padding:.7rem .9rem;text-align:left}
.doc th{background:var(--paper-2);font-weight:500}

/* ---------- Apparition au scroll ---------- */
@media (prefers-reduced-motion:no-preference){
  .rise{opacity:0;transform:translateY(22px);
    transition:opacity .75s cubic-bezier(.2,.7,.3,1),transform .75s cubic-bezier(.2,.7,.3,1)}
  .rise.is-in{opacity:1;transform:none}
}