/* =============================================================
   portfolio.css — paorestrepo.com/portfolio.html
   Extends style.css — uses same CSS variables
============================================================= */

/* ── Page header ──────────────────────────────────────────── */
.pf-header {
  padding: 9rem 4.5rem 5rem;
  background: var(--white);
  border-bottom: 1.5px solid var(--gray-dk);
}

.pf-header-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: end;
  max-width: 1400px;
}

.pf-eyebrow {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
  margin-bottom: 1.2rem;
}

.pf-h1 {
  font-family: var(--display);
  font-size: clamp(3.5rem, 7vw, 7.5rem);
  font-weight: 400;
  line-height: .92;
  letter-spacing: .01em;
  color: var(--ink);
}

.pf-h1 em {
  font-style: italic;
  color: var(--red);
}

.pf-intro {
  font-size: 1rem;
  font-weight: 300;
  color: var(--ink-soft);
  line-height: 1.85;
  max-width: 480px;
  align-self: end;
}

/* ── Filter bar ───────────────────────────────────────────── */
.pf-filters {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 4.5rem;
  background: var(--white);
  border-bottom: 1.5px solid var(--gray-dk);
  position: sticky;
  top: 68px;
  z-index: 100;
  flex-wrap: wrap;
}

.pf-filter {
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 1.2rem 1.6rem 1.1rem;
  cursor: pointer;
  transition: color .2s, border-color .2s;
  white-space: nowrap;
}

.pf-filter:hover {
  color: var(--ink);
}

.pf-filter.active {
  color: var(--red);
  border-bottom-color: var(--red);
}

.pf-count {
  margin-left: auto;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted-lt);
  padding: 1.2rem 0;
}

#pf-count-num {
  color: var(--red);
}

/* ── Grid ─────────────────────────────────────────────────── */
.pf-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5px;
  background: var(--gray-dkk);
  padding: 1.5px;
}

/* ── Item ─────────────────────────────────────────────────── */
.pf-item {
  background: var(--white);
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  cursor: pointer;
}

.pf-item.hidden {
  display: none;
}

.pf-item-inner {
  position: absolute;
  inset: 0;
}

.pf-item-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform .6s var(--ease), filter .4s;
  filter: saturate(.9);
}

.pf-item:hover .pf-item-inner img {
  transform: scale(1.06);
  filter: saturate(1);
}

/* No-image fallback */
.pf-item-inner.no-img {
  background: var(--gray);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Overlay */
.pf-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(26,26,24,.95) 0%,
    rgba(26,26,24,.5)  45%,
    transparent        100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity .35s;
}

.pf-item:hover .pf-item-overlay,
.pf-item:focus .pf-item-overlay {
  opacity: 1;
}

.pf-item-cat {
  font-size: .62rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: .35rem;
}

.pf-item-title {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: .01em;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: .2rem;
}

.pf-item-sub {
  font-size: .72rem;
  font-weight: 300;
  color: rgba(255,255,255,.5);
  line-height: 1.4;
}

/* Red bar bottom on hover */
.pf-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}

.pf-item:hover::after {
  transform: scaleX(1);
}

/* Filter animation */
.pf-item.filtering-out {
  opacity: 0;
  transform: scale(.96);
  transition: opacity .3s, transform .3s;
}

.pf-item.filtering-in {
  opacity: 1;
  transform: scale(1);
  transition: opacity .3s, transform .3s;
}

/* ── Instagram section ────────────────────────────────────── */
.pf-instagram {
  background: var(--ink);
  padding: 6rem 4.5rem;
}

.pf-ig-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: center;
}

.pf-ig-label {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
  margin-bottom: 1rem;
}

.pf-ig-title {
  font-family: var(--display);
  font-size: clamp(2rem, 3.5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: .01em;
  color: var(--white);
  margin-bottom: 1.2rem;
}

.pf-ig-title em {
  font-style: italic;
  color: var(--red);
}

.pf-ig-body {
  font-size: .97rem;
  font-weight: 300;
  color: rgba(255,255,255,.45);
  line-height: 1.85;
  max-width: 480px;
  margin-bottom: 2rem;
}

.pf-ig-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--white);
  border-bottom: 1.5px solid var(--red);
  padding-bottom: 3px;
  text-decoration: none;
  transition: color .2s;
}

.pf-ig-btn:hover {
  color: var(--red);
}

.pf-ig-handle {
  font-family: var(--display);
  font-size: clamp(3rem, 6vw, 6rem);
  font-weight: 400;
  letter-spacing: -.02em;
  line-height: 1.0;
  color: rgba(255,255,255,.06);
  user-select: none;
  text-align: right;
}

/* ── CTA ──────────────────────────────────────────────────── */
.pf-cta {
  background: var(--gray);
  padding: 6rem 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  flex-wrap: wrap;
  border-top: 1.5px solid var(--gray-dk);
}

.pf-cta-label {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: .8rem;
}

.pf-cta-title {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 400;
  letter-spacing: .01em;
  color: var(--ink);
  line-height: 1.0;
}

.pf-cta-title em {
  font-style: italic;
  color: var(--red);
}

.pf-cta-actions {
  display: flex;
  gap: 1.2rem;
  align-items: center;
  flex-shrink: 0;
}

/* ── LIGHTBOX ─────────────────────────────────────────────── */
.lb-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,26,24,.96);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lb-overlay.open {
  display: flex;
}

.lb-content {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 0;
  width: 100%;
  max-width: 1100px;
  max-height: 90vh;
  background: var(--white);
  overflow: hidden;
  position: relative;
}

.lb-img-wrap {
  position: relative;
  background: var(--gray);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  max-height: 90vh;
}

.lb-img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  display: block;
}

.lb-case-link {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
}

.lb-case-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--red);
  padding: .7rem 1.5rem;
  text-decoration: none;
  transition: background .2s;
  white-space: nowrap;
}

.lb-case-btn:hover {
  background: var(--ink);
}

/* Meta panel */
.lb-meta {
  padding: 3rem 2.5rem;
  background: var(--white);
  display: flex;
  flex-direction: column;
  border-left: 1.5px solid var(--gray-dk);
  overflow-y: auto;
}

.lb-meta-cat {
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: .8rem;
}

.lb-meta-title {
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: .01em;
  color: var(--ink);
  line-height: 1.1;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1.5px solid var(--gray-dk);
}

.lb-meta-rows {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
}

.lb-meta-row {
  padding: .9rem 0;
  border-bottom: 1px solid var(--gray-dk);
}

.lb-meta-label {
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
  margin-bottom: .3rem;
}

.lb-meta-val {
  font-size: .85rem;
  font-weight: 300;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* Nav buttons */
.lb-close {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 1.2rem;
  color: rgba(255,255,255,.6);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color .2s;
}

.lb-close:hover { color: var(--red); }

.lb-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2rem;
  color: rgba(255,255,255,.5);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color .2s;
  font-weight: 300;
}

.lb-nav:hover { color: var(--white); }
.lb-prev { left: 1rem; }
.lb-next { right: 1rem; }

/* ── Active nav link ──────────────────────────────────────── */
.nav-links a.active {
  color: var(--red);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1200px) {
  .pf-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  .pf-header        { padding: 8rem 2.5rem 4rem; }
  .pf-header-inner  { grid-template-columns: 1fr; gap: 2rem; }
  .pf-filters       { padding: 0 2.5rem; top: 60px; }
  .pf-grid          { grid-template-columns: repeat(3, 1fr); }
  .pf-instagram     { padding: 5rem 2.5rem; }
  .pf-ig-inner      { grid-template-columns: 1fr; gap: 2rem; }
  .pf-ig-handle     { display: none; }
  .pf-cta           { padding: 5rem 2.5rem; flex-direction: column; align-items: flex-start; }
  .lb-content       { grid-template-columns: 1fr; max-height: 95vh; }
  .lb-meta          { border-left: none; border-top: 1.5px solid var(--gray-dk); padding: 2rem; max-height: 40vh; }
}

@media (max-width: 720px) {
  .pf-header        { padding: 7rem 1.5rem 3.5rem; }
  .pf-filters       { padding: 0 1.5rem; gap: 0; }
  .pf-filter        { padding: 1rem 1rem .9rem; font-size: .7rem; }
  .pf-count         { display: none; }
  .pf-grid          { grid-template-columns: repeat(2, 1fr); }
  .pf-instagram     { padding: 4rem 1.5rem; }
  .pf-cta           { padding: 4rem 1.5rem; }
}

@media (max-width: 480px) {
  .pf-grid          { grid-template-columns: 1fr; }
  .pf-filter        { padding: .8rem .8rem .7rem; letter-spacing: .06em; }
}

/* ═══════════════════════════════════════════════════════════
   MOBILE LIGHTBOX — always-visible controls on touch devices
═══════════════════════════════════════════════════════════ */
@media (hover: none), (max-width: 720px) {

  .lb-overlay { padding: 0; }

  /* Close — large red circle, always visible */
  .lb-close {
    position: fixed;
    top: .8rem;
    right: .8rem;
    width: 52px;
    height: 52px;
    background: var(--red);
    color: #fff;
    font-size: 1.2rem;
    border-radius: 50%;
    opacity: 1 !important;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 14px rgba(0,0,0,.4);
    z-index: 1002;
    border: none;
  }

  /* Prev / Next — pill buttons, always visible at bottom */
  .lb-nav {
    position: fixed;
    bottom: 1rem;
    top: auto;
    transform: none;
    width: auto;
    min-width: 80px;
    height: 48px;
    padding: 0 1.4rem;
    background: rgba(26,26,24,.85);
    border: 1.5px solid rgba(255,255,255,.2);
    border-radius: 100px;
    color: #fff;
    font-size: 1.5rem;
    opacity: 1 !important;
    z-index: 1002;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .lb-prev { left: 1rem; right: auto; }
  .lb-next { right: 1rem; left: auto; }

  /* Dim buttons at first/last item but keep visible */
  .lb-nav[style*="opacity: 0.2"],
  .lb-nav[style*="opacity:0.2"] { opacity: .25 !important; }

  /* Single column layout */
  .lb-content {
    grid-template-columns: 1fr;
    max-height: 98svh;
    border-radius: 8px;
    overflow: hidden;
    overflow-y: auto;
    margin: .5rem;
    width: calc(100% - 1rem);
  }

  .lb-img-wrap {
    max-height: 52svh;
    min-height: 200px;
  }

  .lb-img { max-height: 52svh; }

  .lb-meta {
    border-left: none;
    border-top: 1.5px solid var(--gray-dk);
    padding: 1.4rem 1.4rem 6rem; /* bottom pad so buttons don't cover content */
    max-height: none;
    overflow-y: visible;
  }

  .lb-meta-title { font-size: 1.1rem; }

  /* Counter badge between prev/next */
  .lb-swipe-hint {
    position: fixed;
    bottom: 1.35rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: .62rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: rgba(255,255,255,.35);
    pointer-events: none;
    white-space: nowrap;
    z-index: 1002;
  }
}