/* ============================================================
   Christine Kuzbinski — feuille de style commune
   Portfolio épuré, image-roi (inspiration : francklebegue.fr)
   ============================================================ */

/* ---- 1. Thèmes ---- */
:root{
  --bg:#ffffff;
  --ink:#111111;
  --ink-soft:#6b6b6b;
  --line:#e4e4e1;
  --serif:'Cormorant Garamond',Georgia,serif;
  --sans:'Work Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  --gap:6px;                       /* gouttière de la grille, très fine comme Lebègue */
  --pad:clamp(1.25rem,4vw,3.5rem);
  --maxw:1500px;
}
html[data-theme="dark"]{
  --bg:#0c0c0c;
  --ink:#ededed;
  --ink-soft:#8c8c8c;
  --line:#262626;
}

/* ---- 2. Reset / base ---- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-weight:300;font-size:16px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
  transition:background .5s ease,color .5s ease;
}
img{display:block;width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.08;letter-spacing:.005em}
::selection{background:var(--ink);color:var(--bg)}

/* ---- 3. En-tête / navigation (discrète, fixe) ---- */
header.site{
  position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  padding:1.1rem var(--pad);
  background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;transition:border-color .4s,padding .4s;
}
header.site.solid{border-bottom-color:var(--line)}
.identity{display:flex;flex-direction:column;line-height:1.05}
.identity .name{font-family:var(--serif);font-size:1.35rem;letter-spacing:.01em}
.identity .role{font-size:.62rem;letter-spacing:.32em;text-transform:uppercase;color:var(--ink-soft);margin-top:.25rem}
.identity .name{display:flex;align-items:center;gap:.5rem}
.identity svg.logo{width:26px;height:26px;flex:none}

/* menu principal */
nav.main ul{list-style:none;display:flex;align-items:center;gap:1.8rem}
nav.main a{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);transition:color .3s;position:relative}
nav.main a:hover,nav.main a.active{color:var(--ink)}
nav.main a.active::after{content:"";position:absolute;left:0;right:0;bottom:-5px;height:1px;background:var(--ink)}

/* outils à droite : réseaux + thème + burger */
.tools{display:flex;align-items:center;gap:1rem}
.socials-mini{display:flex;gap:.9rem}
.socials-mini a{color:var(--ink-soft);transition:color .3s}
.socials-mini a:hover{color:var(--ink)}
.socials-mini svg{width:16px;height:16px;display:block}
.theme-toggle{background:none;border:1px solid var(--line);border-radius:50%;width:34px;height:34px;cursor:pointer;color:var(--ink);display:flex;align-items:center;justify-content:center;transition:border-color .3s,transform .4s;flex:none}
.theme-toggle:hover{border-color:var(--ink);transform:rotate(18deg)}
.theme-toggle svg{width:15px;height:15px}
.theme-toggle .sun{display:none}
html[data-theme="dark"] .theme-toggle .sun{display:block}
html[data-theme="dark"] .theme-toggle .moon{display:none}
.burger{display:none;background:none;border:none;cursor:pointer;color:var(--ink);width:32px;height:32px}
.burger svg{width:23px;height:23px}

@media(max-width:880px){
  nav.main ul{
    position:fixed;inset:0;background:var(--bg);flex-direction:column;justify-content:center;align-items:center;gap:2rem;
    transform:translateX(100%);transition:transform .45s cubic-bezier(.7,0,.2,1);z-index:199;
  }
  nav.main ul.open{transform:translateX(0)}
  nav.main a{font-size:1.5rem;font-family:var(--serif);text-transform:none;letter-spacing:0;color:var(--ink)}
  .burger{display:flex;align-items:center;justify-content:center;z-index:201}
  .socials-mini{display:none}
}

/* ============================================================
   4. GRILLE D'ACCUEIL (vignettes plein écran)
   ============================================================ */
.home-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap);
  padding-top:74px;          /* sous le header fixe */
}
.tile{position:relative;overflow:hidden;aspect-ratio:4/5;background:#000}
.tile img{
  width:100%;height:100%;object-fit:cover;filter:grayscale(1);
  transition:transform 1.1s cubic-bezier(.2,.7,.2,1),opacity .6s;
  opacity:.92;
}
.tile:hover img{transform:scale(1.05);opacity:1}
.tile .caption{
  position:absolute;inset:0;z-index:2;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:1.5rem;color:#fff;
  background:linear-gradient(to top,rgba(0,0,0,.62) 0%,rgba(0,0,0,.05) 42%,transparent 70%);
  opacity:0;transition:opacity .5s ease;
}
.tile:hover .caption,.tile:focus-visible .caption{opacity:1}
.tile .cat{font-size:.64rem;letter-spacing:.28em;text-transform:uppercase;opacity:.85;margin-bottom:.4rem}
.tile .ttl{font-family:var(--serif);font-size:1.7rem;line-height:1.05}
@media(max-width:880px){.home-grid{grid-template-columns:repeat(2,1fr)}.tile .caption{opacity:1;background:linear-gradient(to top,rgba(0,0,0,.7),transparent 60%)}.tile .ttl{font-size:1.3rem}}
@media(max-width:520px){.home-grid{grid-template-columns:1fr}}

/* ============================================================
   5. PAGES INTÉRIEURES
   ============================================================ */
main.page{padding-top:74px}
.page-hero{position:relative;width:100%;height:min(82vh,820px);overflow:hidden;background:#000}
.page-hero img{width:100%;height:100%;object-fit:cover;filter:grayscale(1)}
.page-hero .hero-cap{
  position:absolute;left:0;bottom:0;padding:var(--pad);z-index:2;color:#fff;
  background:linear-gradient(to top,rgba(0,0,0,.55),transparent 80%);width:100%;
}
.page-hero .eyebrow{font-size:.68rem;letter-spacing:.3em;text-transform:uppercase;opacity:.85;margin-bottom:.6rem}
.page-hero h1{font-size:clamp(2.4rem,7vw,5.5rem);color:#fff}
.page-hero .sub{font-family:var(--serif);font-style:italic;font-size:clamp(1.05rem,2.4vw,1.5rem);margin-top:.6rem;max-width:40ch}

.wrap{max-width:var(--maxw);margin:0 auto;padding:clamp(3rem,7vw,6rem) var(--pad)}
.measure{max-width:62ch}
.lead{font-size:clamp(1.15rem,2.4vw,1.6rem);font-family:var(--serif);line-height:1.5;color:var(--ink)}
.body-text{color:var(--ink-soft);white-space:pre-line}
.body-text p+p{margin-top:1.2rem}
.eyebrow-dark{font-size:.68rem;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:1.2rem}
.verse{font-family:var(--serif);font-style:italic;font-size:1.25rem;line-height:1.7;white-space:pre-line;color:var(--ink)}
.credit{margin-top:1.4rem;font-size:.8rem;letter-spacing:.04em;color:var(--ink-soft)}

/* section image pleine largeur */
.full-img{margin:0;background:#000}
.full-img img{filter:grayscale(1);width:100%;object-fit:cover}
.full-img figcaption{padding:.8rem var(--pad);font-size:.75rem;color:var(--ink-soft);font-style:italic;background:var(--bg)}

/* duo d'images */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.duo img{filter:grayscale(1);aspect-ratio:3/2;object-fit:cover}
@media(max-width:700px){.duo{grid-template-columns:1fr}}

/* bloc texte + image asymétrique */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.split.narrow-left{grid-template-columns:.85fr 1.15fr}
.split img{filter:grayscale(1)}
@media(max-width:880px){.split,.split.narrow-left{grid-template-columns:1fr;gap:2rem}.split .media{order:-1}}

/* ============================================================
   6. GALERIE (masonry)
   ============================================================ */
.masonry{columns:3;column-gap:var(--gap)}
.masonry figure{margin:0 0 var(--gap);break-inside:avoid;overflow:hidden;background:#000}
.masonry img{filter:grayscale(1) contrast(1.02);transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.masonry figure:hover img{transform:scale(1.04)}
@media(max-width:900px){.masonry{columns:2}}
@media(max-width:520px){.masonry{columns:1}}

/* ============================================================
   7. EXPOSITIONS
   ============================================================ */
.expo-list{border-top:1px solid var(--line)}
.expo{display:grid;grid-template-columns:140px 1fr;gap:2rem;padding:2.2rem 0;border-bottom:1px solid var(--line)}
.expo .when{font-family:var(--serif);font-size:1.1rem;color:var(--ink-soft)}
.expo h3{font-size:1.5rem;margin-bottom:.3rem}
.expo .where{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:.9rem}
.expo p{color:var(--ink-soft);max-width:60ch}
@media(max-width:600px){.expo{grid-template-columns:1fr;gap:.6rem}}

/* ============================================================
   8. PRESSE
   ============================================================ */
.press-list{border-top:1px solid var(--line)}
.press{display:grid;grid-template-columns:1fr auto;gap:1.4rem 2.5rem;align-items:start;padding:2.4rem 0;border-bottom:1px solid var(--line)}
.press .source{font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:.7rem}
.press h3{font-size:1.45rem;line-height:1.2;margin-bottom:1rem;max-width:30ch}
.press blockquote{font-family:var(--serif);font-style:italic;font-size:1.18rem;line-height:1.55;color:var(--ink-soft);max-width:64ch;border-left:1px solid var(--line);padding-left:1.3rem}
.press-link{align-self:start;white-space:nowrap;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;display:inline-flex;align-items:center;gap:.5rem;border:1px solid var(--line);padding:.6rem 1.1rem;border-radius:2rem;transition:all .3s}
.press-link:hover{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.press-link svg{width:13px;height:13px}
@media(max-width:700px){.press{grid-template-columns:1fr}.press-link{justify-self:start}}

/* ============================================================
   9. CONTACT
   ============================================================ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2.5rem,7vw,6rem);align-items:start}
.socials{margin-top:2rem;display:flex;flex-direction:column;gap:.5rem}
.socials a{display:inline-flex;align-items:center;gap:.7rem;width:fit-content;color:var(--ink-soft);transition:color .3s}
.socials a:hover{color:var(--ink)}
.socials svg{width:18px;height:18px}
form{display:flex;flex-direction:column;gap:1.3rem}
.field{display:flex;flex-direction:column;gap:.5rem}
.field label{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft)}
.field input,.field textarea{background:transparent;border:none;border-bottom:1px solid var(--line);color:var(--ink);font-family:var(--sans);font-size:1rem;padding:.55rem 0;transition:border-color .3s}
.field input:focus,.field textarea:focus{outline:none;border-bottom-color:var(--ink)}
.field textarea{resize:vertical;min-height:120px}
button.submit{align-self:flex-start;margin-top:.4rem;background:var(--ink);color:var(--bg);border:none;font-family:var(--sans);font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;padding:.95rem 2.2rem;border-radius:2rem;cursor:pointer;transition:opacity .3s,transform .3s}
button.submit:hover{opacity:.85;transform:translateY(-1px)}
.form-note{font-size:.8rem;color:var(--ink-soft)}
@media(max-width:880px){.contact-grid{grid-template-columns:1fr;gap:2.5rem}}

/* ============================================================
   10. PIED DE PAGE
   ============================================================ */
footer.site{padding:2.2rem var(--pad);border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center;font-size:.74rem;color:var(--ink-soft);letter-spacing:.04em}
footer.site .f-name{font-family:var(--serif);font-size:1rem;color:var(--ink)}
footer.site nav a{margin-left:1.2rem;color:var(--ink-soft);transition:color .3s}
footer.site nav a:hover{color:var(--ink)}
@media(max-width:600px){footer.site nav a{margin:0 1.1rem 0 0}}

/* retour discret en haut de page intérieure */
.back{display:inline-flex;align-items:center;gap:.5rem;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);transition:color .3s}
.back:hover{color:var(--ink)}
.back svg{width:14px;height:14px}

/* apparition au scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .tile img,.masonry img{transition:none}
}