/* ==========================================================
   CLIENT AREA: login page + gallery page
   ========================================================== */

/* ---------- Login ---------- */
.login-card {
  max-width: 520px;
}
.login-card .form-grid {
  grid-template-columns: 1fr; /* one column at every screen size */
}
.login-help {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.login-help a {
  border-bottom: 1px solid var(--line);
  transition: border-color 0.3s ease;
}
.login-help a:hover {
  border-color: var(--accent);
}

/* ---------- Gallery header ---------- */
.c-meta {
  margin-top: 1.25rem;
  font-size: var(--fs-small);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
}
.c-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
  margin-top: 2rem;
}
.c-actions .link-arrow {
  cursor: pointer;
}
.c-state {
  padding: 3rem 0;
  text-align: center;
  color: var(--text-muted);
}
.c-state a {
  border-bottom: 1px solid var(--line);
}

/* ---------- Photo grid ---------- */
.c-grid {
  --gap: clamp(0.75rem, 1.6vw, 1.25rem);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}
@media (min-width: 601px) {
  .c-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 901px) {
  .c-grid { grid-template-columns: repeat(4, 1fr); }
}

.c-tile {
  position: relative;
}
/* Square thumbnails. The lightbox always shows the full, uncropped photo.
   Try 4 / 5 for a taller look. */
.c-grid .g-item {
  --ar: 1;
}

/* Download button on each thumbnail */
.c-dl {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(247, 245, 242, 0.25);
  border-radius: 50%;
  background: rgba(15, 15, 15, 0.6);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--text);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease, background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.c-tile.is-visible .c-dl {
  opacity: 1;
  pointer-events: auto;
}
.c-dl:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--black);
}
/* With a mouse, the button appears when you hover over the photo */
@media (hover: hover) {
  .c-tile.is-visible .c-dl {
    opacity: 0;
  }
  .c-tile.is-visible:hover .c-dl,
  .c-tile.is-visible .c-dl:focus-visible {
    opacity: 1;
  }
}

/* Download button inside the lightbox (added in Step 7) */
.lb-dl[hidden] {
  display: none;
}