/* =============================================================
   NØRVA — LIVRABLE PHOTO
   Feuille de style principale
   Phase 1 : Design Art (tokens), Loader, Hero
   ============================================================= */

/* -------------------------------------------------------------
   1. TOKENS — ADN visuel NØRVA
   ------------------------------------------------------------- */
:root {
  /* Palette */
  --noir:            #0A0A0A;
  --noir-2:          #13161A;   /* noir secondaire (blocs) */
  --or:              #C5A572;   /* or champagne — signature */
  --or-clair:        #D9BE8F;
  --blanc-casse:     #F5F3EF;
  --gris:            #8A8A8A;    /* texte secondaire */
  --gris-ligne:      rgba(245, 243, 239, 0.08); /* filets discrets */

  /* Typographies */
  --serif: "Cormorant Garamond", "Playfair Display", Georgia, serif;
  --sans:  "Inter", system-ui, -apple-system, sans-serif;

  /* Rythme & profondeur */
  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
  --ease-doux: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.6s var(--ease);

  /* Espacements */
  --pad-page: clamp(1.5rem, 5vw, 6rem);
}

/* -------------------------------------------------------------
   2. RESET & BASE
   ------------------------------------------------------------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  overflow-x: hidden; /* évite tout débordement horizontal sans casser le scroll vertical */
}

body {
  background: var(--noir);
  color: var(--blanc-casse);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* Empêche le scroll pendant le loader */
body.chargement { overflow: hidden; }

/* -------------------------------------------------------------
   3. UTILITAIRES TYPOGRAPHIQUES
   ------------------------------------------------------------- */
.surtitre {
  font-family: var(--sans);
  font-size: clamp(0.7rem, 1vw, 0.82rem);
  font-weight: 400;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--or);
}

.titre-serif {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

/* Le mot signature en or / italique */
.or-italique {
  color: var(--or);
  font-style: italic;
}

/* -------------------------------------------------------------
   4. LOADER — fondu noir + wordmark + compteur
   ------------------------------------------------------------- */
#loader {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--noir);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transition: opacity 0.9s var(--ease-doux), visibility 0.9s;
}

#loader.termine {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-wordmark {
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--blanc-casse);
  opacity: 0;
  animation: apparition 1.2s var(--ease) 0.2s forwards;
}

.loader-wordmark span { color: var(--or); }

.loader-compteur {
  font-family: var(--sans);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--gris);
  font-variant-numeric: tabular-nums;
}

/* Fine ligne de progression */
.loader-barre {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 1px;
  width: 0%;
  background: var(--or);
  transition: width 0.2s linear;
}

@keyframes apparition {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* -------------------------------------------------------------
   5. BARRE LANGUE (FR / EN / ES)
   ------------------------------------------------------------- */
.langue {
  position: fixed;
  top: clamp(1.2rem, 3vw, 2.4rem);
  right: var(--pad-page);
  z-index: 200;
  display: flex;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  opacity: 0;
  animation: apparition 1s var(--ease) 1.4s forwards;
  /* Ombre légère : reste lisible en flottant au-dessus des photos claires */
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.55);
}

.langue button {
  color: var(--gris);
  padding: 0.2rem 0.1rem;
  transition: color 0.3s var(--ease);
  letter-spacing: 0.18em;
}
.langue button.actif { color: var(--blanc-casse); }
.langue button:hover { color: var(--or); }
.langue .sep { color: var(--gris-ligne); color: rgba(138,138,138,0.4); }

/* -------------------------------------------------------------
   6. HERO / PORTADA
   ------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--pad-page);
  overflow: hidden;
  /* Léger halo pour donner de la profondeur au fond */
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(197,165,114,0.05), transparent 70%),
    var(--noir);
}

/* Photo de fond du hero (définie via --hero-fond dans le manifeste) */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: var(--hero-fond, none);
  background-size: cover;
  background-position: center;
  opacity: var(--hero-fond-opacite, 0.2);
  /* Léger flou pour garder le texte au premier plan */
  filter: saturate(1.05);
}

/* Voile sombre par-dessus la photo : garantit la lisibilité du titre */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 45%, rgba(10,10,10,0.35), transparent 75%),
    linear-gradient(to bottom, rgba(10,10,10,0.55), rgba(10,10,10,0.25) 40%, rgba(10,10,10,0.75));
  pointer-events: none;
}

/* Le contenu passe au-dessus des calques de fond */
.hero-contenu { position: relative; z-index: 1; }
/* L'indice de scroll garde son positionnement absolu (centré en bas) */
.hero .scroll-indice { z-index: 1; }

.hero-contenu > * {
  opacity: 0;
  animation: apparition 1.1s var(--ease) forwards;
}
.hero-surtitre  { animation-delay: 0.2s; }
.hero-titre     { animation-delay: 0.4s; }
.hero-meta      { animation-delay: 0.6s; }
.hero-cta       { animation-delay: 0.8s; }

.hero-surtitre { margin-bottom: 1.8rem; }

.hero-titre {
  font-size: clamp(3rem, 9vw, 7.5rem);
  margin-bottom: 2rem;
}

.hero-meta {
  font-size: clamp(0.85rem, 1.3vw, 1rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gris);
  margin-bottom: 3rem;
}
.hero-meta .separateur { color: var(--or); margin: 0 0.8rem; }

/* Bouton principal — téléchargement */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--blanc-casse);
  padding: 1.1rem 2.4rem;
  border: 1px solid var(--or);
  position: relative;
  overflow: hidden;
  transition: color 0.5s var(--ease);
  isolation: isolate;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--or);
  transform: translateY(101%);
  transition: transform 0.5s var(--ease);
  z-index: -1;
}
.btn:hover { color: var(--noir); }
.btn:hover::before { transform: translateY(0); }
.btn svg { width: 15px; height: 15px; }

/* Indice de scroll — centré via left/right + margin auto (pas de transform,
   sinon l'animation « apparition » écraserait le centrage horizontal) */
.scroll-indice {
  position: absolute;
  bottom: 2.4rem;
  left: 0;
  right: 0;
  margin-inline: auto;
  width: fit-content;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  opacity: 0;
  animation: apparition 1s var(--ease) 1.4s forwards;
}
.scroll-indice span {
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gris);
}
.scroll-indice .ligne {
  width: 1px;
  height: 48px;
  background: linear-gradient(var(--or), transparent);
  animation: scroll-pulse 2.2s var(--ease-doux) infinite;
}
@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50%      { opacity: 1;   transform: scaleY(1);   transform-origin: top; }
}

/* -------------------------------------------------------------
   7. GALERIE — layout éditorial asymétrique
   ------------------------------------------------------------- */
.galerie {
  padding: clamp(4rem, 10vw, 8rem) var(--pad-page);
}

.galerie-intro {
  text-align: center;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.galerie-intro .surtitre { margin-bottom: 1rem; }
.galerie-intro .galerie-titre {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  color: var(--blanc-casse);
}

.galerie-grille {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(0.6rem, 1.2vw, 1.1rem);
  max-width: 1440px;
  margin: 0 auto;
}

/* Tuiles — deux gabarits pour le rythme éditorial */
.tuile {
  position: relative;
  overflow: hidden;
  background: var(--noir-2);
  cursor: pointer;
}
.tuile--hero   { grid-column: span 6; aspect-ratio: 2 / 1; }   /* pleine largeur, cinématique */
.tuile--large  { grid-column: span 3; aspect-ratio: 3 / 2; }   /* demi-largeur */
.tuile--medium { grid-column: span 2; aspect-ratio: 3 / 2; }   /* tiers de largeur */

.tuile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.95);
  transition: transform 1s var(--ease), filter 0.6s var(--ease);
}
.tuile:hover img { transform: scale(1.045); filter: saturate(1.02); }

/* Voile dégradé au survol (lisibilité des overlays) */
.tuile::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.45), transparent 45%);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
}
.tuile:hover::after { opacity: 1; }

/* Placeholder sombre élégant (photo manquante) */
.tuile-placeholder {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background:
    repeating-linear-gradient(45deg, rgba(245,243,239,0.015) 0 12px, transparent 12px 24px),
    var(--noir-2);
  color: var(--gris);
}
.tuile.sans-image img { display: none; }
.tuile.sans-image .tuile-placeholder { display: flex; }
.tuile-placeholder svg { width: 30px; height: 30px; opacity: 0.35; }
.tuile-placeholder span {
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

/* Badge « Coup de cœur » — étiquette verte */
.tuile-coeur {
  position: absolute;
  top: 0.8rem;
  left: 0.8rem;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.34rem 0.65rem;
  background: rgba(10, 10, 10, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(126, 183, 148, 0.5);
  color: #A6D6B6;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.tuile-coeur .pastille {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #6FBF8B;
  box-shadow: 0 0 8px rgba(111, 191, 139, 0.85);
}

/* Icône de téléchargement individuel (coin) */
.tuile-dl {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  z-index: 3;
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  background: rgba(10, 10, 10, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(245, 243, 239, 0.15);
  color: var(--blanc-casse);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease),
              background 0.4s var(--ease), color 0.4s var(--ease);
}
.tuile:hover .tuile-dl { opacity: 1; transform: translateY(0); }
.tuile-dl:hover { background: var(--or); color: var(--noir); border-color: var(--or); }
.tuile-dl svg { width: 16px; height: 16px; }

/* Numéro de plan (bas-gauche) */
.tuile-num {
  position: absolute;
  bottom: 0.7rem;
  left: 0.95rem;
  z-index: 3;
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.05em;
  color: var(--blanc-casse);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.tuile:hover .tuile-num { opacity: 0.9; transform: translateY(0); }

/* -------------------------------------------------------------
   8. LIGHTBOX — plein écran
   ------------------------------------------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 900;
  background: #060606; /* fond plein : isole totalement la photo */
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}
.lightbox.ouvert { opacity: 1; visibility: visible; }
body.lightbox-ouvert { overflow: hidden; }

.lightbox-scene {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}
.lightbox-img {
  max-width: 88vw;
  max-height: 80vh;
  object-fit: contain;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6);
  transition: opacity 0.35s var(--ease);
}
.lightbox-img.transition { opacity: 0; }

/* Boutons de contrôle */
.lb-btn {
  position: absolute;
  z-index: 5;
  display: grid;
  place-items: center;
  width: 54px; height: 54px;
  color: var(--blanc-casse);
  transition: color 0.3s var(--ease), background 0.3s var(--ease);
}
.lb-btn svg { width: 26px; height: 26px; }
.lb-btn:hover { color: var(--or); }

.lb-fermer { top: clamp(1rem, 3vw, 2rem); right: clamp(1rem, 3vw, 2rem); }
.lb-prec   { left: clamp(0.5rem, 2vw, 2rem); top: 50%; transform: translateY(-50%); }
.lb-suiv   { right: clamp(0.5rem, 2vw, 2rem); top: 50%; transform: translateY(-50%); }

/* Barre d'information bas (compteur + titre + téléchargement) */
.lb-barre {
  position: absolute;
  bottom: clamp(1.2rem, 4vh, 2.6rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 1.6rem;
  padding: 0.7rem 1.4rem;
  background: rgba(10, 10, 10, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--gris-ligne);
}
.lb-compteur {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--gris);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.lb-compteur b { color: var(--blanc-casse); font-weight: 400; }
.lb-titre {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--blanc-casse);
  white-space: nowrap;
}
.lb-dl {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--or);
  transition: color 0.3s var(--ease);
}
.lb-dl:hover { color: var(--or-clair); }
.lb-dl svg { width: 14px; height: 14px; }

/* -------------------------------------------------------------
   9. TÉLÉCHARGEMENT — section dédiée
   ------------------------------------------------------------- */
.telechargement {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(4rem, 10vw, 9rem) var(--pad-page);
  border-top: 1px solid var(--gris-ligne);
  background:
    radial-gradient(ellipse 70% 55% at 50% 50%, rgba(197,165,114,0.06), transparent 70%),
    var(--noir);
}
.dl-surtitre { margin-bottom: 1.8rem; }
.dl-titre {
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.15;
  max-width: 16ch;
  margin: 0 auto 2.8rem;
}
.btn--grand { padding: 1.3rem 3rem; font-size: 0.82rem; }
.btn--grand svg { width: 17px; height: 17px; }
.dl-note {
  margin-top: 2.2rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--gris);
  line-height: 2;
}
.dl-note .sep { color: var(--or); margin: 0 0.7rem; }

/* -------------------------------------------------------------
   10. CLÔTURE
   ------------------------------------------------------------- */
.cloture {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1.8rem;
  padding: var(--pad-page);
  border-top: 1px solid var(--gris-ligne);
}
.cloture-merci {
  font-family: var(--serif);
  font-size: clamp(3rem, 8vw, 6rem);
  color: var(--blanc-casse);
}
.cloture-ligne {
  max-width: 34ch;
  color: var(--gris);
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}
.cloture-contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.2rem;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
}
.cloture-contact a { color: var(--or); transition: color 0.3s var(--ease); }
.cloture-contact a:hover { color: var(--blanc-casse); }
.cloture-wordmark {
  font-family: var(--serif);
  font-size: 1.4rem;
  letter-spacing: 0.24em;
  color: var(--blanc-casse);
  margin-top: 2.5rem;
}
.cloture-wordmark span { color: var(--or); }

/* -------------------------------------------------------------
   11. RESPONSIVE
   ------------------------------------------------------------- */

/* Écrans support tactile : icônes toujours visibles */
@media (hover: none) {
  .tuile-dl { opacity: 1; transform: none; }
  .tuile-num { opacity: 0.85; transform: none; }
}

/* Tablette : on conserve la grille éditoriale 6 colonnes (rythme intact),
   on réduit seulement les marges pour laisser respirer les images. */
@media (max-width: 900px) {
  .langue { top: 1.1rem; }
  .galerie-grille { gap: 0.5rem; }
}

/* Mobile : galerie 1 colonne, lightbox tactile, boutons larges */
@media (max-width: 560px) {
  .galerie-grille { grid-template-columns: 1fr; }
  .tuile--hero,
  .tuile--large,
  .tuile--medium { grid-column: span 1; aspect-ratio: 3 / 2; }

  /* Icône de téléchargement toujours visible sur mobile, déplacée en bas à
     droite pour ne jamais croiser le sélecteur de langue fixé en haut */
  .tuile-dl { opacity: 1; transform: none; top: auto; bottom: 0.8rem; }
  .tuile-num { opacity: 0.85; transform: none; }

  .hero-titre { font-size: clamp(2.6rem, 14vw, 4rem); }
  /* Client et date empilés sur deux lignes nettes (pas de coupure de la date) */
  .hero-meta {
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    line-height: 1.4;
  }
  .hero-meta .separateur { display: none; }
  .hero-cta { margin-top: 0.5rem; }
  .btn { padding: 1rem 1.8rem; letter-spacing: 0.2em; }

  .lightbox-img { max-width: 94vw; max-height: 72vh; }
  .lb-btn { width: 46px; height: 46px; }
  .lb-prec { left: 0.2rem; }
  .lb-suiv { right: 0.2rem; }
  .lb-barre {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.7rem 1.1rem;
    max-width: 92vw;
    text-align: center;
  }
  .lb-titre { white-space: normal; }

  .cloture-contact { font-size: 0.72rem; }
}