/* =============================================
   OLHAR — PORTFOLIO
   Estilos específicos da página de portfolio
   ============================================= */


/* ─── Navbar — sempre opaca no portfolio ────── */
/* O JS remove .scrolled quando scrollY === 0.
   Forçamos o aspecto opaco independentemente do estado. */
#navbar {
  background-color: var(--clr-nav-scroll) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  border-bottom: 0.5px solid var(--clr-border) !important;
}

#navbar:not(.scrolled) .nav-brand,
#navbar:not(.scrolled) .olhar-link {
  color: var(--clr-text) !important;
}

#navbar:not(.scrolled) .olhar-link:hover,
#navbar:not(.scrolled) .olhar-link.active {
  color: var(--clr-accent) !important;
}

#navbar:not(.scrolled) .nav-toggler-custom span {
  background-color: var(--clr-text) !important;
}


/* ─── Portfolio Hero ────────────────────────── */
.pf-hero {
  padding-top: calc(var(--sp-xl) + 90px); /* navbar + espaço */
  padding-bottom: var(--sp-lg);
  background-color: var(--clr-bg);
  border-bottom: 0.5px solid var(--clr-border);
}

.pf-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--clr-text);
  margin-top: 0.5rem;
  font-style: italic;
}

.pf-hero-sub {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 300;
  color: var(--clr-text-muted);
  letter-spacing: 0.04em;
  line-height: 1.9;
  margin-top: 1.5rem;
  max-width: 48ch;
}


/* ─── Filtros ───────────────────────────────── */
.pf-filter-wrap {
  background-color: var(--clr-bg);
  border-bottom: 0.5px solid var(--clr-border);
}

.pf-filter {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

.pf-filter-btn {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  background: none;
  border: none;
  border-bottom: 1.5px solid transparent;
  padding: 1.25rem 1.75rem;
  cursor: none;
  white-space: nowrap;
  transition: color var(--ease-base), border-color var(--ease-base);
  position: relative;
}

.pf-filter-btn:hover {
  color: var(--clr-text);
}

.pf-filter-btn.active {
  color: var(--clr-accent);
  border-bottom-color: var(--clr-accent);
}


/* ─── Grid ──────────────────────────────────── */
.pf-section {
  background-color: var(--clr-bg-alt);
  padding: var(--sp-lg) 0;
}

.pf-container {
  padding-left: var(--sp-lg);
  padding-right: var(--sp-lg);
}

.pf-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background-color: var(--clr-border-light);
}

.pf-item {
  position: relative;
  overflow: hidden;
  background-color: var(--clr-bg-alt);
  cursor: none;
}

/* Variantes de tamanho */
.pf-item.pf-wide { grid-column: span 2; }
.pf-item.pf-tall { grid-row:    span 2; }

.pf-item img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  filter: saturate(0.80);
  transition: transform 700ms cubic-bezier(0.4, 0, 0.2, 1),
              filter var(--ease-slow);
  display: block;
}

.pf-item.pf-tall img { min-height: 641px; }

.pf-item:hover img {
  transform: scale(1.04);
  filter: saturate(1);
}

/* Overlay */
.pf-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(20, 22, 20, 0.72) 0%,
    rgba(20, 22, 20, 0.10) 55%,
    transparent 100%
  );
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.75rem;
  transition: opacity var(--ease-base);
}

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

.pf-overlay-cat {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--clr-accent-soft);
  margin-bottom: 0.375rem;
}

.pf-overlay-title {
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  font-weight: 300;
  color: #fff;
  font-style: italic;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

/* Estado oculto (filtro) */
.pf-item.is-hidden {
  display: none;
}

/* Transição ao filtrar */
.pf-grid.is-filtering .pf-item {
  animation: pfFadeIn 400ms var(--ease-slow) forwards;
}

@keyframes pfFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ─── CTA ───────────────────────────────────── */
.pf-cta {
  background-color: var(--clr-bg);
  border-top: 0.5px solid var(--clr-border);
  padding: var(--sp-xl) 0;
  text-align: center;
}

.pf-cta-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-top: 0.5rem;
}

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


/* ─── Responsividade ────────────────────────── */
@media (max-width: 1200px) {
  .pf-container {
    padding-left: var(--sp-md);
    padding-right: var(--sp-md);
  }
}

@media (max-width: 991px) {
  .pf-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pf-item.pf-wide { grid-column: span 2; }
  .pf-item.pf-tall { grid-row: span 1; }
  .pf-item.pf-tall img { min-height: 320px; }
}

@media (max-width: 576px) {
  .pf-container {
    padding-left: 0;
    padding-right: 0;
  }

  .pf-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1px;
  }

  .pf-item.pf-wide { grid-column: span 2; }
  .pf-item.pf-tall { grid-row: span 1; }

  .pf-filter-btn {
    padding: 1rem 1.25rem;
  }

  .pf-overlay { padding: 1.25rem; }
  .pf-overlay-title { font-size: var(--fs-base); }
}