/* MerciNicolas — direction : page produit de luxe, nuit + béton, serif display + grotesk + mono. */
:root {
  --encre: #0b0c0e;
  --nuit: #131418;
  --nuit-2: #1b1d22;
  --beton: #e8e6e1;
  --papier: #f3f2ee;
  --texte: #141518;
  --gris: #55585e;          /* 6:1 sur béton */
  --gris-nuit: #9a9da3;     /* 7:1 sur nuit */
  --filet: rgba(20, 21, 24, .14);
  --filet-nuit: rgba(255, 255, 255, .11);
  --accent: #12cd3a;
  --rouge-nuit: #ff7a6b;
  --hero3d-fond: #0b0c0e;   /* lu par hero3d.js */
  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans: "Geist", ui-sans-serif, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --entete: 60px;
  --marge: clamp(20px, 4vw, 48px);
  --doux: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }
html { overflow-x: clip; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0; background: var(--encre); color: var(--texte);
  font: 400 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; font-feature-settings: "ss01";
}
a { color: inherit; }
h1, h2, h3 { font-weight: 400; margin: 0; }
p { margin: 0; }
[id] { scroll-margin-top: calc(var(--entete) + 16px); }
:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; border-radius: 4px; }
.enveloppe { width: 100%; max-width: 1240px; margin-inline: auto; padding-inline: var(--marge); }

.evitement { position: absolute; left: 12px; top: -60px; z-index: 50; background: #fff; color: var(--encre); padding: 10px 16px; border-radius: 8px; }
.evitement:focus { top: 12px; }

/* --- Bandeau + en-tête --- */
.promo {
  padding: 9px var(--marge); background: var(--encre); color: #c4c6ca; text-align: center;
  font: 500 11px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase;
  border-bottom: 1px solid var(--filet-nuit);
}
.entete {
  position: sticky; top: 0; z-index: 20; height: var(--entete);
  background: rgba(11, 12, 14, .78); backdrop-filter: saturate(160%) blur(18px); -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--filet-nuit); color: #fff;
}
.entete-in { height: 100%; display: flex; align-items: center; gap: 32px; }
.logo { font: 500 19px/1 var(--sans); letter-spacing: -.02em; text-decoration: none; color: #fff; }
.logo b { font-weight: 600; color: var(--accent); }
nav { display: flex; gap: 28px; margin-left: auto; }
nav a { text-decoration: none; color: var(--gris-nuit); font-size: 14px; transition: color .2s; }
nav a:hover { color: #fff; }
.panier-btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 8px 7px 14px;
  background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, .22); border-radius: 999px;
  font: 500 14px/1 var(--sans); cursor: pointer; transition: border-color .2s;
}
.panier-btn:hover { border-color: rgba(255, 255, 255, .5); }
#compteur {
  min-width: 22px; height: 22px; padding: 0 6px; display: inline-grid; place-items: center;
  background: var(--accent); color: var(--encre); border-radius: 999px; font: 600 12px/1 var(--mono);
}

/* --- Boutons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 24px;
  background: var(--texte); color: #fff; border: 0; border-radius: 999px;
  font: 500 15px/1 var(--sans); letter-spacing: -.005em; text-decoration: none; cursor: pointer;
  transition: transform .3s var(--doux), background-color .2s, opacity .2s;
}
.btn:hover { background: #2a2c31; }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .35; cursor: default; transform: none; }
.btn-accent, .btn-accent:hover { background: var(--accent); color: var(--encre); }
.btn-accent:hover { background: #3be05c; }
.lien { color: #fff; font-size: 15px; text-decoration: none; border-bottom: 1px solid rgba(255, 255, 255, .35); padding-bottom: 2px; }
.lien:hover { border-color: #fff; }

/* --- Hero : scène 3D collante, texte collant par-dessus --- */
.hero { position: relative; height: 230vh; margin-top: calc(var(--entete) * -1); background: var(--hero3d-fond); color: #fff; }
#hero3d {
  position: sticky; top: 0; height: 100svh; z-index: 0; overflow: hidden;
  /* Fond autonome tant que la 3D n'est pas montée (ou si WebGL échoue). */
  background:
    radial-gradient(ellipse 60% 55% at 68% 52%, rgba(160, 165, 172, .16), transparent 70%),
    repeating-linear-gradient(90deg, transparent 0 calc(12.5% - 1px), rgba(255, 255, 255, .045) calc(12.5% - 1px) 12.5%),
    linear-gradient(180deg, #0b0c0e 0%, #15171b 62%, #0b0c0e 100%);
}
#hero3d canvas { opacity: 0; transition: opacity 1.2s var(--doux); }
#hero3d.hero3d-pret canvas { opacity: 1; }
.hero-texte {
  position: sticky; top: 0; z-index: 1; height: 100svh; margin-top: -100svh;
  display: flex; flex-direction: column; justify-content: center; padding-top: var(--entete);
  pointer-events: none;
  /* Voile de lisibilité : gauche + bas, quel que soit le rendu 3D. */
  background:
    linear-gradient(90deg, rgba(11, 12, 14, .82) 0%, rgba(11, 12, 14, .5) 34%, rgba(11, 12, 14, 0) 62%),
    linear-gradient(0deg, rgba(11, 12, 14, .7) 0%, rgba(11, 12, 14, 0) 30%);
}
.hero-texte a { pointer-events: auto; }
.surtitre, .index, .etiquette, .places, .recap-titre {
  font: 500 11.5px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase;
}
.surtitre { color: var(--accent); margin-bottom: 28px; display: flex; align-items: center; gap: 10px; }
.surtitre::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
h1 {
  font-family: var(--serif); font-size: clamp(3rem, min(8.4vw, 11vh), 8rem); line-height: .93; letter-spacing: -.025em;
  max-width: 11ch; text-wrap: balance;
}
h1 em { color: #b9bcc1; }
.hero-sous { margin-top: 28px; max-width: 34ch; font-size: clamp(17px, 1.4vw, 19px); line-height: 1.55; color: rgba(255, 255, 255, .78); }
.hero-actions { margin-top: 40px; display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.defiler {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  font: 500 11px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: rgba(255, 255, 255, .55);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.defiler::after { content: ""; width: 1px; height: 36px; background: linear-gradient(rgba(255, 255, 255, .6), transparent); }

/* Le texte s'efface pendant que la caméra recule (navigateurs compatibles, mouvement autorisé). */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .hero { view-timeline: --hero block; }
    .hero-texte .enveloppe, .defiler { animation: effacer linear both; animation-timeline: --hero; animation-range: contain 4% contain 34%; }
    @keyframes effacer { to { opacity: 0; transform: translateY(-32px); } }
    .defiler { animation-name: effacer-cue; }
    @keyframes effacer-cue { to { opacity: 0; } }
  }
}

/* --- Sections --- */
.bloc { padding-block: clamp(88px, 11vw, 160px); }
.bloc-gammes { background: var(--beton); }
.bloc-sombre { background: var(--nuit); color: #fff; }
.bloc-avis { background: var(--papier); }
.tete { margin-bottom: clamp(40px, 5vw, 72px); padding-bottom: 28px; border-bottom: 1px solid var(--filet); }
.bloc-sombre .tete { border-color: var(--filet-nuit); }
.index { color: var(--gris); margin-bottom: 18px; }
.bloc-sombre .index { color: var(--gris-nuit); }
h2 { font-family: var(--serif); font-size: clamp(2.9rem, 6.4vw, 5.6rem); line-height: .95; letter-spacing: -.02em; }

/* --- Gammes --- */
.grille { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(12px, 1.6vw, 20px); }
.carte {
  position: relative; display: flex; flex-direction: column;
  background: var(--papier); border-radius: 22px; padding: 12px 12px 28px;
}
.carte > :not(.visuel) { padding-inline: 16px; }
.carte.phare { background: var(--encre); color: #fff; }
.badge {
  position: absolute; top: 26px; left: 26px; z-index: 1; display: flex; align-items: center; gap: 8px;
  font: 500 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent);
}
.carte .badge { padding: 0; }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.visuel {
  aspect-ratio: 5 / 4; margin-bottom: 26px; border-radius: 14px; overflow: hidden;
  display: grid; place-items: center;
  background:
    linear-gradient(0deg, rgba(0, 0, 0, .28) 0 22%, transparent 22%),
    radial-gradient(ellipse 70% 60% at 50% 40%, #3a3d43, #1b1d21 75%);
  color: #7d8188; font: 400 clamp(40px, 4.6vw, 64px)/1 var(--mono); letter-spacing: .28em; text-indent: .28em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, .08), 0 18px 28px rgba(0, 0, 0, .45);
}
.phare .visuel { background: linear-gradient(0deg, rgba(0, 0, 0, .3) 0 22%, transparent 22%), radial-gradient(ellipse 70% 60% at 50% 40%, #4a4e55, #1e2025 75%); color: #a2a6ad; }
.places { order: -1; color: var(--gris); margin-bottom: 10px; }
.visuel { order: -2; }
.phare .places, .phare .x4 { color: var(--gris-nuit); }
.carte h3 { font-family: var(--serif); font-size: clamp(2.4rem, 3.4vw, 3.1rem); line-height: 1; letter-spacing: -.015em; }
.pitch { margin-top: 12px; color: var(--gris); flex-grow: 1; max-width: 30ch; }
.phare .pitch { color: #c4c6ca; }
.carte .prix { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--filet); font: 500 26px/1.1 var(--sans); letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.phare .prix { border-color: var(--filet-nuit); }
.carte .x4 { margin-top: 6px; color: var(--gris); font-size: 14px; font-variant-numeric: tabular-nums; }
.carte .btn { margin: 22px 16px 0; align-self: flex-start; padding-inline: 22px; }
.carte.phare .btn { background: var(--accent); color: var(--encre); }
.carte.phare .btn:hover { background: #3be05c; }

/* --- Configurateur --- */
.config { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(300px, 1fr); gap: clamp(32px, 4vw, 64px); align-items: start; }
.vitrine { position: sticky; top: calc(var(--entete) + 20px); display: flex; flex-direction: column; gap: 14px; }
#cellule3d {
  position: relative; width: 100%; aspect-ratio: 16 / 10; border-radius: 20px; overflow: hidden;
  background: radial-gradient(ellipse 70% 70% at 50% 45%, #2a2c32, #15161a 75%);
  box-shadow: inset 0 0 0 1px var(--filet-nuit);
}
#cellule3d canvas { display: block; width: 100%; height: 100%; }
#cellule3d .v3d-btn {
  right: 14px !important; bottom: 14px !important; padding: 9px 14px !important;
  font: 500 12px/1 var(--mono) !important; letter-spacing: .1em; text-transform: uppercase;
  background: rgba(11, 12, 14, .72) !important; border: 1px solid rgba(255, 255, 255, .18) !important;
}
#cellule3d .v3d-btn:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.recap {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  padding: 20px 24px; background: var(--nuit-2); border-radius: 20px; box-shadow: inset 0 0 0 1px var(--filet-nuit);
}
.recap-titre { color: var(--gris-nuit); margin-bottom: 8px; }
.recap .prix { font: 500 clamp(30px, 3vw, 40px)/1 var(--sans); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.recap .x4 { margin-top: 8px; color: var(--gris-nuit); font-size: 14px; font-variant-numeric: tabular-nums; }
.recap-action { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.recap .btn { min-height: 52px; padding-inline: 30px; font-size: 16px; }
.stock { color: var(--rouge-nuit); font: 500 12px/1.3 var(--mono); letter-spacing: .04em; display: flex; align-items: center; gap: 8px; }
.stock::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.choix { display: flex; flex-direction: column; gap: 40px; }
.etiquette { display: block; color: var(--gris-nuit); margin-bottom: 14px; }
.champ { display: block; }
select {
  display: block; width: 100%; appearance: none; -webkit-appearance: none;
  padding: 15px 48px 15px 18px; border-radius: 14px; border: 1px solid rgba(255, 255, 255, .18);
  background: var(--nuit-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5l5 5 5-5' stroke='%23fff' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 18px center;
  color: #fff; font: 500 16px/1.2 var(--sans); cursor: pointer;
}
select:hover { border-color: rgba(255, 255, 255, .4); }
select option { background: var(--nuit-2); color: #fff; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
legend { padding: 0; }
#options { display: flex; flex-direction: column; gap: 40px; }
#options legend { font: 500 11.5px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--gris-nuit); margin-bottom: 6px; }

/* Lignes d'options */
#options label {
  display: grid; grid-template-columns: 20px 1fr auto; align-items: center; column-gap: 14px;
  padding: 16px 0; border-bottom: 1px solid var(--filet-nuit); cursor: pointer;
  color: #d5d7da; transition: color .2s;
}
#options label:hover, #options label:has(:checked) { color: #fff; }
#options label span { font: 400 14px/1 var(--mono); color: var(--gris-nuit); font-variant-numeric: tabular-nums; }
#options label:has(:checked) span { color: #fff; }
#options input {
  appearance: none; -webkit-appearance: none; margin: 0; width: 20px; height: 20px; border-radius: 6px;
  border: 1.5px solid rgba(255, 255, 255, .38); background: transparent; cursor: pointer; transition: background-color .2s, border-color .2s;
}
#options input:checked {
  border-color: var(--accent);
  background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='10' fill='none'%3E%3Cpath d='M1 5l3.5 3.5L11 1.5' stroke='%230b0c0e' stroke-width='2'/%3E%3C/svg%3E") no-repeat center;
}
#options input:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }

/* Pastilles de finition */
#finitions { display: flex; flex-wrap: wrap; gap: 10px; }
.pastille {
  position: relative; display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px 8px 8px; border-radius: 999px; cursor: pointer;
  border: 1px solid rgba(255, 255, 255, .16); color: #d5d7da; font-size: 15px; transition: border-color .2s, color .2s;
}
.pastille:hover { border-color: rgba(255, 255, 255, .4); }
.pastille:has(:checked) { border-color: #fff; color: #fff; background: rgba(255, 255, 255, .05); }
.pastille:has(:focus-visible) { outline: 2px solid #fff; outline-offset: 3px; }
.pastille input { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; }
.pastille i { width: 26px; height: 26px; border-radius: 50%; display: inline-block; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .25); }
.pastille span { font: 400 13px/1 var(--mono); color: var(--gris-nuit); }

/* --- Avis --- */
.citations { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
blockquote {
  margin: 0; padding: 8px clamp(20px, 3vw, 40px) 8px; border-left: 1px solid var(--filet);
  display: flex; flex-direction: column;
}
blockquote:first-child { border-left: 0; padding-left: 0; }
blockquote p:not(.note) { font-family: var(--serif); font-size: clamp(1.7rem, 2.4vw, 2.2rem); line-height: 1.12; letter-spacing: -.01em; flex-grow: 1; text-wrap: pretty; }
.note { font: 400 14px/1 var(--mono); letter-spacing: .22em; color: var(--texte); margin-bottom: 24px; }
cite { display: block; margin-top: 28px; font: 500 11.5px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; font-style: normal; color: var(--gris); }

/* --- Pied --- */
.pied { background: var(--encre); color: var(--gris-nuit); font-size: 14px; padding-block: 72px 56px; border-top: 1px solid var(--filet-nuit); }
.pied .enveloppe { display: grid; gap: 20px; }
.pied p { max-width: 70ch; }
.pied strong { color: #fff; font-weight: 500; }
summary { cursor: pointer; color: #c4c6ca; width: fit-content; font: 500 11.5px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
summary:hover { color: #fff; }
details p { margin-top: 12px; }

/* --- Panier : panneau latéral --- */
dialog {
  margin: 0 0 0 auto; padding: 0; border: 0; width: min(460px, 100%); height: 100dvh; max-height: 100dvh; max-width: 100%;
  background: var(--papier); color: var(--texte); box-shadow: -24px 0 64px rgba(0, 0, 0, .25);
}
dialog[open] { display: flex; flex-direction: column; }
dialog::backdrop { background: rgba(5, 6, 8, .55); backdrop-filter: blur(3px); }
@media (prefers-reduced-motion: no-preference) {
  dialog[open] { animation: glisser .5s var(--doux); }
  @keyframes glisser { from { transform: translateX(100%); } }
}
.panier-tete { padding: 28px 28px 20px; border-bottom: 1px solid var(--filet); }
.panier-tete h2 { font-size: 2.6rem; }
#lignes { list-style: none; margin: 0; padding: 0 28px; flex: 1; overflow-y: auto; }
#lignes li { display: flex; gap: 14px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--filet); color: var(--gris); }
#lignes li > div:first-child { flex: 1; min-width: 0; }
#lignes strong { display: block; color: var(--texte); font-weight: 500; }
#lignes small { display: block; margin-top: 4px; color: var(--gris); font-size: 13px; line-height: 1.45; }
#lignes li > span { color: var(--texte); font-variant-numeric: tabular-nums; font-weight: 500; white-space: nowrap; }
.qte { display: flex; align-items: center; color: var(--texte); font: 500 14px/1 var(--mono); white-space: nowrap; }
.qte button { width: 30px; height: 30px; margin: 0 8px; border-radius: 50%; border: 1px solid var(--filet); background: transparent; color: var(--texte); font: 16px/1 var(--sans); cursor: pointer; }
.qte button:hover { border-color: var(--texte); }
.panier-pied { padding: 24px 28px calc(24px + env(safe-area-inset-bottom)); border-top: 1px solid var(--filet); background: var(--beton); }
.total { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 20px; font: 500 11.5px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--gris); }
#total { font: 500 28px/1 var(--sans); letter-spacing: -.02em; text-transform: none; color: var(--texte); font-variant-numeric: tabular-nums; }
.actions { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
#fermer { background: none; border: 0; padding: 0; color: var(--texte); font: 500 14px/1 var(--sans); text-decoration: underline; text-underline-offset: 4px; cursor: pointer; }
#commander { min-width: 160px; }

/* --- Responsive --- */
@media (max-width: 960px) {
  .config { display: flex; flex-direction: column; align-items: stretch; gap: 28px; }
  .vitrine { display: contents; }
  #cellule3d { order: 0; aspect-ratio: 4 / 3; }
  .choix { order: 1; }
  .recap {
    order: 2; position: sticky; bottom: 0; z-index: 5;
    margin-inline: calc(var(--marge) * -1); padding: 14px var(--marge) calc(14px + env(safe-area-inset-bottom));
    border-radius: 0; background: rgba(27, 29, 34, .94); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 -1px 0 var(--filet-nuit); flex-wrap: nowrap;
  }
  .recap-titre { display: none; }
  .recap .prix { font-size: 26px; }
  .recap .x4 { font-size: 12px; margin-top: 4px; }
  .recap .btn { min-height: 46px; padding-inline: 20px; font-size: 15px; }
  .recap-action { gap: 6px; }
  .recap { display: grid; grid-template-columns: 1fr auto; row-gap: 10px; }
  .recap-action { display: contents; }
  .recap .x4 { white-space: nowrap; }
  .stock { grid-column: 1 / -1; font-size: 10.5px; }
  #cellule3d .v3d-btn { right: 10px !important; bottom: 10px !important; padding: 7px 10px !important; font-size: 10.5px !important; }
}
@media (max-width: 760px) {
  nav { display: none; }
  .panier-btn { margin-left: auto; }
  .hero { height: 200vh; }
  .hero-texte {
    justify-content: flex-end; padding-bottom: 96px;
    background: linear-gradient(0deg, rgba(11, 12, 14, .92) 0%, rgba(11, 12, 14, .6) 45%, rgba(11, 12, 14, 0) 72%);
  }
  .surtitre { margin-bottom: 18px; }
  .defiler { display: none; }
  .hero-texte { padding-bottom: 48px; }
  h1 { font-size: clamp(2.6rem, 12.5vw, 3.4rem); }
  .hero-sous { margin-top: 18px; }
  .hero-actions { margin-top: 28px; gap: 22px; }
  .grille {
    grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 84%;
    overflow-x: auto; scroll-snap-type: x mandatory; overscroll-behavior-x: contain;
    margin-inline: calc(var(--marge) * -1); padding-inline: var(--marge); scroll-padding-inline: var(--marge);
    scrollbar-width: none;
  }
  .grille::-webkit-scrollbar { display: none; }
  .carte { scroll-snap-align: start; }
  .citations { grid-template-columns: 1fr; }
  blockquote, blockquote:first-child { border-left: 0; border-top: 1px solid var(--filet); padding: 32px 0; }
  blockquote:first-child { border-top: 0; padding-top: 0; }
  .actions { flex-direction: column-reverse; align-items: stretch; text-align: center; }
  #fermer { padding: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}