:root{
  --pf-gap: clamp(1rem, 2.5vw, 2rem);
  --pf-shadow: 0 10px 30px rgba(0,0,0,.06);
  --pf-shadow-hover: 0 16px 40px rgba(0,0,0,.10);
  --nav-h: 104px;
}

/* Make this section a flex column that spans the viewport */
#portfolio .portfolio-section {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;                /* full viewport height (mobile-safe) */
  padding: calc(var(--nav-h) + 16px) 1.25rem 3rem; /* avoid navbar overlap */
  align-items: center;                /* horizontal centering */
  justify-content: flex-start;        /* main-axis starts at top */
}

/* This centers when there is space, but if content is taller than the viewport,
   the auto margins resolve to 0 and the block naturally top-aligns (no overflow above). */
#portfolio .portfolio-inner {
  width: 100%;
  max-width: 1200px;
  margin-block: auto;                 /* center vertically when possible, else top */
}

/* Title + grid as before */
#portfolio .portfolio-title {
  text-align: center;
  margin: 0 0 1.75rem 0;
}

#portfolio .portfolio-grid {
  display: grid;
  gap: 0;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

/* Safety: if a global .section centers vertically, override it here */
#portfolio .section {
  justify-content: flex-start !important;
  align-items: center !important;
}


.section.portfolio-section {
  display: flex;           /* override any global grid/row flex */
  flex-direction: column;  /* title on top, grid below */
  align-items: stretch;    /* let grid take full width */
}

.portfolio-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.25rem;
}

.portfolio-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
    align-self: center;                  /* centers the h2 block */
  text-align: center;
  margin: 0 0 3rem 0;                  /* space under the title */
  width: 100%;                         /* ensure full row if needed */

}

.portfolio-grid {
  display: grid;
  gap: var(--pf-gap);
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Rectangular card (no radius) */
.pf-card {
  display: block;
  border-radius: 0;                  /* <— rectangular */
  box-shadow: var(--pf-shadow);
  overflow: hidden;
  background: #f7f7f7;
  transition: transform .18s ease, box-shadow .25s ease;
  will-change: transform;
}

.pf-card:focus-visible {
  outline: 2px solid #0073e6;
  outline-offset: 3px;
}

.pf-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;             /* consistent height */
  background: #eee;
}

.pf-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: transform .35s ease, filter .25s ease;
  display: block;
}

/* Bottom title bar (always visible) */
.pf-footer {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.96);
  border-top: 1px solid rgba(0,0,0,0.06);
  padding: .75rem 1rem;
}

.pf-title {
  font-weight: 700;
  font-size: 1rem;
  color: #111;                       /* keep black text per your theme */
  display: block;
  text-align: center;
}

/* Hover overlay with tags (hidden by default) */
.pf-hover {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  background: rgba(255,255,255,0.88); /* bright overlay for black text */
  backdrop-filter: blur(2px);         /* optional; safe to keep */
  transition: opacity .25s ease;
  pointer-events: none;
}

.pf-tags {
  display: flex;
  gap: .5rem .75rem;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pf-tags li {
  font-size: .9rem;
  font-weight: 600;
  color: #111;
  background: #e9eef6;               /* soft gray/blue chip */
  border: 1px solid #d8e0ec;
  padding: .35rem .6rem;
  border-radius: 999px;               /* pill */
}

/* Interactions */
.pf-card:hover,
.pf-card:focus-visible {
  box-shadow: var(--pf-shadow-hover);
  transform: translateY(-2px);
}

.pf-card:hover img,
.pf-card:focus-visible img {
  transform: scale(1.06);             /* magnify image */
  filter: saturate(0.95) brightness(1.02);
}

.pf-card:hover .pf-hover,
.pf-card:focus-visible .pf-hover {
  opacity: 1;                          /* show tags on hover/focus */
}

/* Mobile tweaks */
@media (max-width: 480px) {
  .portfolio-section { padding: 3rem 1rem; }
  .portfolio-title { margin-bottom: 1.25rem; }
  .pf-tags li { font-size: .85rem; }
}

@media (max-width: 800px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(200, 1fr));
        padding: 2rem;
        }

}

/* ===== Cascade reveal for portfolio cards ===== */
.portfolio-grid {
  --stagger: 90ms;                 /* gap between each card’s start time */
}

/* start hidden */
.pf-card {
  opacity: 0;
  transform: translateY(14px) scale(.98);
  will-change: opacity, transform;
}

/* animate in once the grid becomes visible */
.portfolio-grid.is-visible .pf-card {
  animation: pf-cascade .6s cubic-bezier(.2,.7,.2,1) forwards;
}

/* stagger the delays via nth-child (cover first 12; you have 7) */
.portfolio-grid.is-visible .pf-card:nth-child(1)  { animation-delay: calc(var(--stagger) * 0); }
.portfolio-grid.is-visible .pf-card:nth-child(2)  { animation-delay: calc(var(--stagger) * 1); }
.portfolio-grid.is-visible .pf-card:nth-child(3)  { animation-delay: calc(var(--stagger) * 2); }
.portfolio-grid.is-visible .pf-card:nth-child(4)  { animation-delay: calc(var(--stagger) * 3); }
.portfolio-grid.is-visible .pf-card:nth-child(5)  { animation-delay: calc(var(--stagger) * 4); }
.portfolio-grid.is-visible .pf-card:nth-child(6)  { animation-delay: calc(var(--stagger) * 5); }
.portfolio-grid.is-visible .pf-card:nth-child(7)  { animation-delay: calc(var(--stagger) * 6); }
.portfolio-grid.is-visible .pf-card:nth-child(8)  { animation-delay: calc(var(--stagger) * 7); }
.portfolio-grid.is-visible .pf-card:nth-child(9)  { animation-delay: calc(var(--stagger) * 8); }
.portfolio-grid.is-visible .pf-card:nth-child(10) { animation-delay: calc(var(--stagger) * 9); }
.portfolio-grid.is-visible .pf-card:nth-child(11) { animation-delay: calc(var(--stagger) * 10); }
.portfolio-grid.is-visible .pf-card:nth-child(12) { animation-delay: calc(var(--stagger) * 11); }

@keyframes pf-cascade {
  to { opacity: 1; transform: none; }
}

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  .pf-card { opacity: 1 !important; transform: none !important; animation: none !important; }
}



/* Tiny end target so you can snap to the bottom of the last section */
.snap-end { block-size: 1px; scroll-snap-align: end; }

/* Tell the snap container to leave space equal to the footer height */
:root { --footer-h: 200px; }                 /* adjust to your footer’s real height */
html, body { scroll-padding-bottom: var(--footer-h); }