:root{
  --bg:#111;
  --fg:#fff;
  --muted:#9aa0a6;
  --radius:12px;
  --cols:4;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;
}
.page{min-height:100dvh;display:flex;flex-direction:column}
.topbar{
  display:flex;align-items:center;gap:16px;
  padding:16px 20px;border-bottom:1px solid #222;
}
.top-logo{
  height:150px !important;  /* fuerza el alto */
  display:none;             /* sin !important para que el JS pueda mostrarla */
}
.desc{
  color:var(--muted) !important;
  margin:4px 0 0 0 !important;
}
.grid{
  width:100% !important;
  padding:16px !important;
  display:grid !important;
  gap:12px !important;
  grid-template-columns:repeat(var(--cols), minmax(0,1fr)) !important;
}

.card{
  position:relative;overflow:hidden;border-radius:var(--radius);
  background:#000;transform:translateZ(0);
}
.thumb{
  display:block;width:100%;height:auto;aspect-ratio:4/3; /* se ajusta desde JS */
  object-fit:cover;opacity:0;transition:opacity .25s ease, transform .25s ease;
}
.card.loaded .thumb{opacity:1}
.card.hover-zoom:hover .thumb{transform:scale(1.03)}
.card.hover-glow:hover{box-shadow:0 0 0 2px rgba(255,255,255,.08), 0 10px 30px rgba(0,0,0,.5)}
.actions{padding:12px 16px}
.btn{
  background:#fff;color:#000;border:0;border-radius:8px;padding:10px 14px;font-weight:600;cursor:pointer
}
.btn:disabled{opacity:.5;cursor:not-allowed}
.footer{margin-top:auto;display:flex;justify-content:center;align-items:center;padding:16px}
.bottom-logo{height:28px;opacity:.9}

/* modal password */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center}
.hidden{display:none}
.modal-content{
  background:#1b1b1b;border:1px solid #2a2a2a;border-radius:12px; padding:20px; width:min(90vw,420px)
}
.modal-content input{
  width:100%;padding:10px;border-radius:8px;border:1px solid #333;background:#0e0e0e;color:#fff;margin-top:8px
}
.modal-actions{margin-top:12px;display:flex;justify-content:flex-end}
.error{color:#ff6b6b;font-size:.9rem;margin-top:6px}

/* responsive columnas */
@media (max-width:1200px){:root{--cols:3}}
@media (max-width:900px){:root{--cols:2}}
@media (max-width:560px){:root{--cols:1}}