/* ============================================================
   FONTS
   ============================================================ */
@font-face {
  font-family: 'Damn';
  src: url('https://static1.squarespace.com/static/67979e7bf6b3e437c1733abe/t/68e9196cf65a8d5ecb849ff1/1760106860943/DAMN.ttf') format('truetype');
}
@font-face {
  font-family: 'PP Formula';
  src: url('https://static1.squarespace.com/static/67979e7bf6b3e437c1733abe/t/68ef9a2d3685dd7f066ba2b3/1760533037695/PPFormula-NarrowRegular.otf') format('opentype');
}

/* ============================================================
   BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

a, button {
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

/* ============================================================
   PAGE LAYOUT
   ============================================================ */
.page-wrap {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 20px;
}

/* ============================================================
   HEADER
   ============================================================ */
.page-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 1rem 5rem 40px;
  background: #fff;
  z-index: 10;
}

.header-title {
  font-family: 'Damn', sans-serif;
  font-size: 50px;
  letter-spacing: 0.02em;
  margin: 0;
  white-space: nowrap;
  justify-self: start;
}

.header-logo-link {
  display: inline-block;
  position: relative;
  justify-self: center;
}

.header-logo {
  display: block;
  width: 80px;
  max-width: 10vw;
  height: auto;
}

.header-logo-link::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.header-logo-link:hover::after { opacity: 1; }

/* ============================================================
   FILTERS
   ============================================================ */
.header-filters {
  display: flex;
  align-items: center;
  gap: 20px;
  justify-self: end;
}

.filter-btn {
  font-family: 'PP Formula', sans-serif;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #000;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s ease;
  white-space: nowrap;
  user-select: none;
}

.filter-btn:hover { opacity: 0.85; }
.filter-btn.is-active { opacity: 1; }

/* ============================================================
   PHOTO GRID
   ============================================================ */
.photo-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-content: start;
  gap: 3px;
  padding-bottom: 3px;
}

.photo-grid a {
  display: block;
  width: 100%;
  text-decoration: none;
  position: relative;
  transition: opacity 0.3s ease, filter 0.3s ease;
}

.album-large {
  grid-column: span 2;
  grid-row: span 2;
}

.photo-img-wrap {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.photo-img-wrap img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* Large albums: image fills the box minus caption space */
.album-large .photo-img-wrap {
  height: calc(100% - 38px);
}

.album-large .photo-img-wrap img {
  position: absolute;
  inset: 0;
}

/* GIF overlay on hover */
.photo-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--gif);
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.photo-grid a:hover .photo-img-wrap::after { opacity: 1; }

/* Caption */
.photo-caption {
  display: block;
  padding: 8px 2px;
  font-family: 'PP Formula', sans-serif;
  font-size: 13px;
  color: #000;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.3;
  opacity: 0.75;
  transition: opacity 0.3s ease;
}

.photo-grid a:hover .photo-caption { opacity: 1; }

.caption-type {
  opacity: 0.4;
  margin-left: 4px;
}

/* ============================================================
   FILTER LOGIC
   When a specific filter is active, .photo-grid gets
   `.filter-active`, and matching albums get `.is-match`.
   Non-matching albums are dimmed.
   ============================================================ */
.photo-grid.filter-active a:not(.is-match) {
  opacity: 0.6;
  filter: grayscale(100%);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .page-header {
    padding: 65px 15px 20px;
  }
  .header-title {
    font-size: 30px;
  }
  .header-logo {
    width: 56px;
    max-width: 14vw;
  }
  .header-filters {
    display: grid;
    grid-template-columns: repeat(2, auto);
    justify-content: start;
    gap: 10px 12px;
  }
  .filter-btn {
    font-size: 12px;
    letter-spacing: 0.04em;
    line-height: 1.1;
    text-align: left;
  }
  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .photo-caption { font-size: 11px; }
  .album-large { grid-row: span 1; }
  .album-large .photo-img-wrap { height: auto; }
  .album-large .photo-img-wrap img { position: static; height: auto; }
}