/* ═══════════════════════════════════════════════════════════════
   Sylvain Blanchoud — Photographies
   Palette : ivoire #F6F1E6 · noir #1A1814 · or #B8956A
   Typographie : Cormorant Garamond
   ═══════════════════════════════════════════════════════════════ */

:root {
  --ivoire: #F6F1E6;
  --noir: #1A1814;
  --or: #B8956A;
  --or-pale: #d6bd9c;
  --noir-doux: #2a2620;
  --ivoire-ombre: #e9e1d0;
  --develop-duree: 3.2s;
  --serif: "Cormorant Garamond", "Garamond", "Georgia", serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--serif);
  background: var(--ivoire);
  color: var(--noir);
  font-size: 20px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--or); color: var(--ivoire); }

/* ─── Grain argentique global ─────────────────────────────── */

.grain-defs { position: absolute; }

.grain-overlay {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 9999;
  filter: url(#grain);
  opacity: 0.05;
  animation: grain-shift 0.9s steps(4) infinite;
}

@keyframes grain-shift {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(-2%, 1.5%); }
  50%  { transform: translate(1.5%, -1%); }
  75%  { transform: translate(-1%, -2%); }
  100% { transform: translate(2%, 1%); }
}

/* ─── En-tête ─────────────────────────────────────────────── */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.2rem, 4vw, 3rem);
  transition: background 0.5s ease, box-shadow 0.5s ease, padding 0.4s ease;
}

.site-header.solid {
  background: rgba(26, 24, 20, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 rgba(184, 149, 106, 0.25);
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
}

.monogram {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ivoire);
  text-decoration: none;
  border: 1px solid var(--or);
  padding: 0.15em 0.55em;
  transition: background 0.4s, color 0.4s;
}

.monogram:hover { background: var(--or); color: var(--noir); }

.site-nav { display: flex; gap: clamp(1rem, 3vw, 2.4rem); }

.site-nav a {
  color: var(--ivoire);
  text-decoration: none;
  font-size: 1.02rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  position: relative;
  padding-bottom: 0.2em;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--or);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s cubic-bezier(0.6, 0, 0.2, 1);
}

.site-nav a:hover::after { transform: scaleX(1); transform-origin: left; }

/* ─── Hero ────────────────────────────────────────────────── */

.hero {
  min-height: 100svh;
  background:
    radial-gradient(ellipse 120% 70% at 50% 110%, rgba(184, 149, 106, 0.13), transparent 60%),
    var(--noir);
  color: var(--ivoire);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  position: relative;
}

.hero-eyebrow {
  letter-spacing: 0.45em;
  text-transform: uppercase;
  font-size: 0.95rem;
  color: var(--or);
  margin-bottom: 2.2rem;
}

.hero-title {
  font-size: clamp(3.4rem, 11vw, 8.5rem);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: 0.06em;
}

.hero-sub {
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
  margin-top: 1.6rem;
  color: var(--ivoire-ombre);
}

.hero-rule {
  width: 70px;
  height: 1px;
  background: var(--or);
  margin: 2.4rem 0 1.6rem;
}

.hero-meta {
  font-size: 1rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(246, 241, 230, 0.55);
}

/* Le hero se révèle lui aussi comme un tirage */
.develop-text {
  animation: develop-in var(--develop-duree) cubic-bezier(0.25, 0.4, 0.25, 1) both;
}

.hero-eyebrow { animation-delay: 0.2s; }
.hero-title   { animation-delay: 0.45s; }
.hero-sub     { animation-delay: 0.9s; }
.hero-rule    { animation-delay: 1.25s; }
.hero-meta    { animation-delay: 1.4s; }

@keyframes develop-in {
  0%   { opacity: 0; filter: blur(10px) brightness(2.2) contrast(0.3) sepia(0.5); }
  35%  { opacity: 0.5; filter: blur(5px) brightness(1.5) contrast(0.55) sepia(0.35); }
  70%  { opacity: 0.9; filter: blur(1.5px) brightness(1.1) contrast(0.85) sepia(0.12); }
  100% { opacity: 1; filter: blur(0) brightness(1) contrast(1) sepia(0); }
}

.scroll-cue {
  position: absolute;
  bottom: 2.2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 64px;
  overflow: hidden;
}

.scroll-cue span {
  position: absolute;
  top: -100%;
  left: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--or));
  animation: cue-drop 2.2s ease-in-out infinite;
}

@keyframes cue-drop {
  0%   { top: -100%; }
  60%  { top: 100%; }
  100% { top: 100%; }
}

/* ─── Sections : têtes ───────────────────────────────────── */

.section-head {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: 0 1.5rem;
}

.section-eyebrow {
  letter-spacing: 0.4em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--noir);
  opacity: 0.55;
  margin-bottom: 0.8rem;
}

.section-eyebrow.gold { color: var(--or); opacity: 1; }

.section-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 1.4rem;
}

.section-note {
  font-style: italic;
  font-size: 1.1rem;
  opacity: 0.75;
}

/* ─── Galerie ────────────────────────────────────────────── */

.gallery-section { padding: clamp(5rem, 10vw, 8rem) 0 clamp(4rem, 8vw, 7rem); }

.demo-notice {
  max-width: 680px;
  margin: 1.8rem auto 0;
  padding: 0.8em 1.4em;
  text-align: center;
  font-style: italic;
  font-size: 0.98rem;
  color: var(--noir);
  background: rgba(184, 149, 106, 0.13);
  border: 1px solid rgba(184, 149, 106, 0.45);
}

.gallery {
  columns: 3 360px;
  column-gap: clamp(1.2rem, 2.5vw, 2.2rem);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.2rem, 4vw, 3.5rem) 0;
}

.photo {
  break-inside: avoid;
  margin: 0 0 clamp(1.2rem, 2.5vw, 2.2rem);
  cursor: pointer;
}

/* La cuve : cadre ivoire, papier qui attend dans le bain */
.tray {
  position: relative;
  overflow: hidden;
  background: var(--ivoire-ombre);
  box-shadow:
    0 1px 2px rgba(26, 24, 20, 0.12),
    0 12px 34px -14px rgba(26, 24, 20, 0.35);
  transition: box-shadow 0.5s ease, transform 0.5s ease;
}

.photo:hover .tray {
  transform: translateY(-4px);
  box-shadow:
    0 1px 2px rgba(26, 24, 20, 0.12),
    0 22px 48px -16px rgba(26, 24, 20, 0.45);
}

.tray img {
  display: block;
  width: 100%;
  height: auto;
  /* état "papier vierge" : surexposé, sans densité, flou sous la surface */
  opacity: 0;
  filter: blur(14px) brightness(2.4) contrast(0.18) sepia(0.55);
  transform: scale(1.03);
}

/* placeholder flou (blur-up) appliqué en arrière-plan de la cuve */
.tray::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--ph);
  background-size: cover;
  background-position: center;
  filter: blur(18px) brightness(1.35) sepia(0.3);
  transform: scale(1.1);
  transition: opacity 1.5s ease 1.2s;
}

/* Révélation : l'image monte dans le bain */
.photo.developed .tray img {
  animation: develop-print var(--develop-duree) cubic-bezier(0.3, 0.3, 0.15, 1) forwards;
}

.photo.developed .tray::before { opacity: 0; }

@keyframes develop-print {
  0%   { opacity: 0;    filter: blur(14px) brightness(2.4) contrast(0.18) sepia(0.55); transform: scale(1.03); }
  18%  { opacity: 0.35; filter: blur(9px)  brightness(1.9) contrast(0.32) sepia(0.45); }
  45%  { opacity: 0.7;  filter: blur(4px)  brightness(1.4) contrast(0.6)  sepia(0.28); }
  75%  { opacity: 0.94; filter: blur(1px)  brightness(1.08) contrast(0.88) sepia(0.08); transform: scale(1.005); }
  100% { opacity: 1;    filter: blur(0)    brightness(1)    contrast(1)    sepia(0);    transform: scale(1); }
}

/* Nappe de révélateur : un voile liquide balaie le tirage */
.tray::after {
  content: "";
  position: absolute;
  inset: -20%;
  background: linear-gradient(115deg,
    transparent 30%,
    rgba(246, 241, 230, 0.16) 45%,
    rgba(184, 149, 106, 0.10) 52%,
    rgba(246, 241, 230, 0.14) 60%,
    transparent 75%);
  transform: translateX(-120%) skewX(-8deg);
  pointer-events: none;
}

.photo.developed .tray::after {
  animation: bath-sweep 2.6s cubic-bezier(0.45, 0, 0.25, 1) 0.15s forwards;
}

@keyframes bath-sweep {
  from { transform: translateX(-120%) skewX(-8deg); }
  to   { transform: translateX(120%) skewX(-8deg); }
}

/* Légende : numéro d'œuvre + titre, apparaît après la révélation */
.photo figcaption {
  display: flex;
  align-items: baseline;
  gap: 0.7em;
  padding: 0.75em 0.2em 0;
  font-size: 1.02rem;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 1s ease, transform 1s ease;
}

.photo.developed figcaption {
  opacity: 1;
  transform: none;
  transition-delay: calc(var(--develop-duree) * 0.7);
}

.photo figcaption .num {
  color: var(--or);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
}

.photo figcaption .title { font-style: italic; }

.photo figcaption .edition {
  margin-left: auto;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.5;
}

/* ─── Sections de prose ──────────────────────────────────── */

.prose-section { padding: clamp(5rem, 11vw, 9rem) 1.5rem; }

.prose-section.dark {
  background: var(--noir);
  color: var(--ivoire);
}

.prose-section.dark .section-title { color: var(--ivoire); }

.prose-inner { max-width: 680px; margin: 0 auto; }

.prose-inner.centered { text-align: center; }

.prose-inner p { margin-bottom: 1.3em; font-size: 1.18rem; font-weight: 400; }

.prose-inner p:last-of-type { margin-bottom: 0; }

.prose-section.dark .prose-inner p { color: rgba(246, 241, 230, 0.85); }

/* ─── Éditions ───────────────────────────────────────────── */

.editions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem 3rem;
  margin-top: 3rem;
}

.editions-grid dt {
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--or);
  margin-bottom: 0.4em;
  border-bottom: 1px solid rgba(184, 149, 106, 0.4);
  padding-bottom: 0.5em;
}

.editions-grid dd { font-size: 1.08rem; }

/* ─── Contact ────────────────────────────────────────────── */

.contact-mail {
  display: inline-block;
  margin-top: 1.8rem;
  font-size: clamp(1.3rem, 3.4vw, 2rem);
  font-style: italic;
  color: var(--or-pale);
  text-decoration: none;
  border-bottom: 1px solid var(--or);
  padding-bottom: 0.1em;
  transition: color 0.4s, border-color 0.4s;
}

.contact-mail:hover { color: var(--ivoire); border-color: var(--ivoire); }

/* ─── Pied de page ───────────────────────────────────────── */

.site-footer {
  background: var(--noir);
  color: rgba(246, 241, 230, 0.4);
  text-align: center;
  padding: 2rem 1.5rem 2.4rem;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  border-top: 1px solid rgba(184, 149, 106, 0.18);
}

/* ─── Lightbox — la chambre noire ────────────────────────── */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(20, 18, 15, 0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.45s ease;
}

.lightbox.open { opacity: 1; }

.lb-figure {
  max-width: min(92vw, 1500px);
  max-height: 88svh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lb-figure img {
  max-width: 100%;
  max-height: calc(88svh - 4rem);
  object-fit: contain;
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.8);
  animation: develop-in 1.4s cubic-bezier(0.25, 0.4, 0.25, 1) both;
}

.lb-figure figcaption {
  margin-top: 1.2rem;
  color: var(--ivoire-ombre);
  font-style: italic;
  font-size: 1.1rem;
  text-align: center;
}

.lb-figure figcaption .lb-soustitre {
  font-style: italic;
  opacity: 0.7;
}

.lb-figure figcaption .lb-edition {
  display: block;
  font-style: normal;
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--or);
  margin-top: 0.4em;
}

.lb-close, .lb-prev, .lb-next {
  position: absolute;
  background: none;
  border: none;
  color: var(--ivoire-ombre);
  font-family: var(--serif);
  cursor: pointer;
  line-height: 1;
  transition: color 0.3s, transform 0.3s;
  z-index: 2;
}

.lb-close { top: 1.2rem; right: 1.6rem; font-size: 2.6rem; font-weight: 300; }
.lb-prev  { left: 1rem;  top: 50%; transform: translateY(-50%); font-size: 3.4rem; padding: 1rem; }
.lb-next  { right: 1rem; top: 50%; transform: translateY(-50%); font-size: 3.4rem; padding: 1rem; }

.lb-close:hover { color: var(--or); transform: rotate(90deg); }
.lb-prev:hover, .lb-next:hover { color: var(--or); }

/* ─── Responsive ─────────────────────────────────────────── */

@media (max-width: 720px) {
  body { font-size: 18px; }
  .site-nav a { font-size: 0.88rem; letter-spacing: 0.1em; }
  .gallery { columns: 1 auto; }
  .lb-prev, .lb-next { font-size: 2.6rem; padding: 0.6rem; }
}

@media (min-width: 721px) and (max-width: 1100px) {
  .gallery { columns: 2 320px; }
}

/* ─── Accessibilité : mouvement réduit ───────────────────── */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .grain-overlay { animation: none; }
  .develop-text, .photo.developed .tray img, .lb-figure img {
    animation-duration: 0.01s !important;
    animation-delay: 0s !important;
  }
  .photo.developed .tray::after { animation: none; }
  .photo figcaption { transition: none; }
  .scroll-cue span { animation: none; top: 0; }
}