/* ================================================================
   pages/portfolio.css — Portfolio list + detail
   ================================================================ */


/* ================================================================
   LIST PAGE
   ================================================================ */

/* Category filter tabs */
.pf-tabs-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-xl);
  width: 100%;
  padding: 0 16px;
  box-sizing: border-box;
}

.pf-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
  justify-content: center;
  width: fit-content;
  max-width: calc(100vw - 32px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 6px;
  /* overflow-x: auto; */
  scrollbar-width: none;
}

.pf-tabs::-webkit-scrollbar {
  display: none;
}

.pf-tab {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-size: 16px;
  font-weight: 900;
  color: var(--text);
  text-decoration: none;
  transition: background var(--transition-fast), border-color var(--transition-fast),
              color var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

.pf-tab:hover {
  background: var(--hover);
  border-color: var(--border);
}

.pf-tab.is-active {
  background: linear-gradient(180deg, var(--purple-2), var(--purple));
  border-color: var(--purple-border);
  color: #fff;
  box-shadow: 0 6px 18px var(--purple-glow);
}

/* Cases grid — bigger cards on desktop */
.pf-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  padding: 0 24px 24px;
  box-sizing: border-box;
}
@media (min-width: 900px) { .pf-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .pf-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 720px) { .pf-grid { padding: 0 14px 20px; } }

/* Case card */
.pf-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
              border-color var(--transition-base);
}
.pf-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--color-accent);
}

/* Photo collage: cover (left/top) + up to 2 small (right) */
.pf-collage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--tile-media-bg);
}

/* When we have extra photos — split: big left, small right */
.pf-collage.has-extra {
  grid-template-columns: 3fr 1fr;
  grid-template-rows: 1fr 1fr;
}

.pf-collage-main {
  overflow: hidden;
}

.pf-collage.has-extra .pf-collage-main {
  grid-row: 1 / 3; /* spans both rows */
}

.pf-collage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}
.pf-card:hover .pf-collage img { transform: scale(1.05); }

.pf-collage-small {
  overflow: hidden;
  border-left: 2px solid var(--bg);
}
.pf-collage-small:last-child { border-top: 2px solid var(--bg); }

/* Hover overlay */
.pf-collage-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.72) 0%, transparent 55%);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 2;
}
.pf-card:hover .pf-collage-overlay { opacity: 1; }

.pf-overlay-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.45);
  border-radius: var(--radius-full);
  backdrop-filter: blur(var(--blur-sm));
  color: #fff;
  font-size: 15px;
  font-weight: 700;
}

/* Category badge on collage */
.pf-cat-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.35);
  backdrop-filter: blur(var(--blur-sm));
  color: #fff;
  z-index: 3;
}

/* Card body */
.pf-card-body {
  padding: 18px 20px 20px;
  flex: 1;
}

.pf-card-title {
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 6px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.pf-card-desc {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Empty state */
.pf-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  color: var(--muted);
  font-size: 15px;
}


/* ================================================================
   DETAIL PAGE
   ================================================================ */

.pf-detail-wrap {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
  padding: 22px 24px 12px;
  box-sizing: border-box;
}

.pf-detail-topbar {
  display: flex;
  justify-content: flex-start;
  padding-left: 10px;
  margin-bottom: 10px;
}

.pf-detail-head {
  text-align: left;
  max-width: none;
  margin: 0;
  padding: 20px 22px;
  border-radius: 18px;
  border: 1px solid var(--border);

}

.pf-detail-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--purple-border);
  background: linear-gradient(180deg, var(--purple-2), var(--purple));
  box-shadow: 0 6px 16px var(--purple-glow);
  font-size: 16px;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  transition: filter var(--transition-fast), transform var(--transition-fast);
}
.pf-detail-back:hover {
  filter: saturate(1.1) brightness(1.06);
  transform: translateY(-1px);
}

.pf-detail-back:active {
  transform: translateY(0);
}

.pf-back-arrow {
  font-size: 14px;
  line-height: 1;
}

.pf-detail-cat {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid rgba(124, 58, 237, 0.30);
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.pf-detail-title {
  font-size: clamp(24px, 4vw, 35px);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.08;
  margin: 0 0 10px;
  text-transform: none;
}

.pf-detail-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
  max-width: 760px;
}

/* Divider */
.pf-divider {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  margin: 2px 0 var(--space-lg);
  height: 1px;
}

/* Photo masonry grid */
.pf-masonry {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding-bottom: var(--space-3xl);
}

.pf-masonry--full {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  padding: 0 24px var(--space-3xl);
  box-sizing: border-box;
}

@media (max-width: 1200px)  { .pf-masonry { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 900px)  { .pf-masonry { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px)  { .pf-masonry { grid-template-columns: 1fr; } }
@media (max-width: 520px)  { .pf-masonry--full { padding: 0 14px var(--space-3xl); } }

@media (max-width: 720px) {
  .pf-detail-wrap {
    width: 100vw;
    left: 50%;
    transform: translateX(-50%);
    padding: 14px 12px 10px;
  }

  .pf-detail-topbar {
    padding-left: 6px;
  }

  .pf-detail-head {
    padding: 16px 14px;
    border-radius: 14px;
  }

  .pf-detail-back {
    min-height: 36px;
    padding: 0 12px;
    font-size: 12px;
  }

  .pf-detail-title {
    font-size: clamp(23px, 8vw, 32px);
    margin-bottom: 8px;
  }

  .pf-detail-desc {
    font-size: 14px;
    line-height: 1.5;
  }

  .pf-divider {
    width: 100vw;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 0;
  }
}

.pf-masonry-item {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--tile-media-bg);
  cursor: pointer;
  position: relative;
}

.pf-masonry-item img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.pf-masonry-item:hover img { transform: scale(1.04); }

/* Lightbox */
.pf-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200000;
  background: rgba(0,0,0,0.92);
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.pf-lightbox.open { display: flex; }

.pf-lightbox img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: var(--radius-md);
  object-fit: contain;
  display: block;
}

.pf-lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.30);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}
.pf-lightbox-close:hover { background: var(--color-accent); border-color: var(--color-accent); }

.pf-lightbox-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}
.pf-lightbox-arrow:hover { background: var(--color-accent); border-color: var(--color-accent); }
.pf-lightbox-prev { left: 20px; }
.pf-lightbox-next { right: 20px; }