:root{
  --bg:#0f1115; --panel:#171a21; --panel2:#1e222b; --line:#2a2f3a;
  --txt:#e8eaf0; --muted:#9aa3b2; --accent:#eb4064; --accent2:#3b82f6;
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  background:var(--bg); color:var(--txt);
  font:15px/1.5 system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* ---- Barre supérieure ---- */
.topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.7rem 1.2rem;background:rgba(15,17,21,.85);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.brand{font-weight:700;font-size:1.1rem}
.topbar nav{display:flex;gap:.4rem}
.topbar nav a{padding:.4rem .8rem;border-radius:9px;color:var(--muted)}
.topbar nav a:hover{background:var(--panel2);color:var(--txt)}
.topbar nav a.active{background:var(--accent);color:#fff}

main{max-width:1500px;margin:0 auto;padding:1.2rem}

/* ---- Fil d'Ariane ---- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:.3rem;color:var(--muted);margin-bottom:.8rem}
.breadcrumb a{padding:.15rem .4rem;border-radius:6px}
.breadcrumb a:hover{background:var(--panel2);color:var(--txt)}
.breadcrumb .sep{opacity:.5}

/* ---- Barre d'outils ---- */
.toolbar{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center;justify-content:space-between;margin-bottom:1rem}
.toolbar .count{color:var(--muted)}
.toolbar .actions{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:.35rem;cursor:pointer;
  background:var(--panel2);color:var(--txt);border:1px solid var(--line);
  padding:.45rem .8rem;border-radius:9px;font-size:.9rem;
}
.btn:hover{border-color:var(--accent);color:#fff}
select,input[type=search]{
  background:var(--panel2);color:var(--txt);border:1px solid var(--line);
  padding:.42rem .6rem;border-radius:9px;font-size:.9rem;
}
input[type=search]{min-width:170px}
.sort{color:var(--muted);display:flex;align-items:center;gap:.4rem}

/* ---- Dossiers ---- */
.folders{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));
  gap:1rem;margin-bottom:1.6rem;
}
.folder{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.15s}
.folder:hover{transform:translateY(-3px);border-color:var(--accent)}
.folder-cover{aspect-ratio:4/3;background:var(--panel2);display:flex;align-items:center;justify-content:center;overflow:hidden}
.folder-cover img{width:100%;height:100%;object-fit:cover}
.folder-icon{font-size:3rem}
.folder-meta{padding:.6rem .8rem;display:flex;flex-direction:column;gap:.15rem}
.folder-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.folder-count{color:var(--muted);font-size:.82rem}

/* ---- Grille de photos ---- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}
.card{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative;transition:.15s}
.card:hover{border-color:var(--accent2)}
.card-link{display:block;position:relative;aspect-ratio:1/1;background:var(--panel2)}
.card-link img{width:100%;height:100%;object-fit:cover}
.badge-video{position:absolute;left:.5rem;bottom:.5rem;background:rgba(0,0,0,.65);padding:.15rem .5rem;border-radius:6px;font-size:.78rem}
.rank-badge{position:absolute;top:.5rem;left:.5rem;z-index:2;background:rgba(0,0,0,.7);padding:.2rem .55rem;border-radius:8px;font-size:1rem;font-weight:700}
figcaption{display:flex;align-items:center;justify-content:space-between;gap:.4rem;padding:.45rem .6rem}
.fname{font-size:.8rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-actions{display:flex;align-items:center;gap:.3rem;flex-shrink:0}

/* ---- Bouton like ---- */
.like{display:inline-flex;align-items:center;gap:.25rem;cursor:pointer;background:var(--panel2);border:1px solid var(--line);color:var(--muted);border-radius:20px;padding:.2rem .55rem;font-size:.82rem;transition:.12s}
.like:hover{border-color:var(--accent)}
.like .heart{color:#5a6072;transition:.12s}
.like.liked{border-color:var(--accent);color:#fff}
.like.liked .heart{color:var(--accent)}
.like.pop{animation:pop .35s}
.like.big{padding:.5rem 1rem;font-size:1rem;border-radius:24px}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.3)}100%{transform:scale(1)}}
.dl{display:inline-flex;align-items:center;justify-content:center;width:1.9rem;height:1.9rem;border-radius:50%;background:var(--panel2);border:1px solid var(--line);color:var(--muted)}
.dl:hover{border-color:var(--accent2);color:#fff}

/* ---- Visionneuse ---- */
.viewer{display:grid;grid-template-columns:1fr 320px;gap:1.2rem;align-items:start}
.viewer-stage{position:relative;display:flex;align-items:center;justify-content:center;background:#000;border-radius:var(--radius);min-height:50vh;overflow:hidden}
.viewer-media{max-height:80vh;max-width:100%;object-fit:contain;margin:auto}
.nav-arrow{position:absolute;top:50%;transform:translateY(-50%);font-size:2.4rem;line-height:1;background:rgba(0,0,0,.45);color:#fff;width:3rem;height:3rem;display:flex;align-items:center;justify-content:center;border-radius:50%;z-index:2}
.nav-arrow:hover{background:var(--accent)}
.nav-arrow.prev{left:.6rem}
.nav-arrow.next{right:.6rem}
.viewer-info{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1rem}
.viewer-title{font-size:1.1rem;margin:.2rem 0 .4rem;word-break:break-all}
.viewer-loc{color:var(--muted);margin:.2rem 0 1rem}
.viewer-buttons{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem}
.exif{display:grid;grid-template-columns:auto 1fr;gap:.3rem .8rem;margin:0;font-size:.88rem}
.exif dt{color:var(--muted)}
.exif dd{margin:0;text-align:right;word-break:break-word}
.viewer-back{margin-top:1rem}
.viewer-back a{color:var(--accent2)}

/* ---- Pagination ---- */
.pager{display:flex;flex-wrap:wrap;gap:.4rem;justify-content:center;align-items:center;margin:1.6rem 0 .5rem}
.pager .page-num{min-width:2.2rem;justify-content:center}
.pager .page-num.current{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700}

.page-title{font-size:1.4rem;margin:.2rem 0 1.2rem}
.empty{color:var(--muted);text-align:center;padding:3rem 1rem}
.foot{color:var(--muted);text-align:center;padding:2rem 1rem;border-top:1px solid var(--line);margin-top:2rem;font-size:.85rem}

/* ---- Diaporama (overlay plein écran) ---- */
.slideshow{position:fixed;inset:0;background:#000;z-index:100;display:none;align-items:center;justify-content:center}
.slideshow.on{display:flex}
.slideshow img{max-width:96vw;max-height:92vh;object-fit:contain}
.slideshow-close{position:absolute;top:1rem;right:1.4rem;font-size:2rem;color:#fff;cursor:pointer;z-index:2}
.slideshow-caption{position:absolute;bottom:1rem;left:0;right:0;text-align:center;color:#fff;opacity:.8}

@media(max-width:760px){
  .viewer{grid-template-columns:1fr}
}