/* ═══════════════════════════════════════════════════════════════════════════
   PROYECTOS · Hero compacto + Filtros + Grid + Lightbox
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Hero compacto ────────────────────────────────────────────────────────── */
.proyectos-hero {
  padding: 10rem 5% 4rem;
  text-align: center;
  background: var(--dark);
  position: relative;
}
.ph-eyebrow {
  font-family: 'DM Sans', sans-serif;
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 1.4rem;
}
.ph-title {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 300;
  font-size: clamp(2.6rem, 6vw, 5.4rem);
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 1.4rem;
  letter-spacing: -.01em;
}
.ph-title em {
  font-style: italic;
  color: var(--salmon);
  font-weight: 300;
}
.ph-desc {
  font-family: 'DM Sans', sans-serif;
  font-size: .96rem;
  font-weight: 300;
  line-height: 1.7;
  color: rgba(255,255,255,.62);
  max-width: 580px;
  margin: 0 auto 2.6rem;
}
.ph-stats {
  display: inline-flex;
  align-items: center;
  gap: 3.5rem;
  border-top: 1px solid rgba(255,255,255,.12);
  border-bottom: 1px solid rgba(255,255,255,.12);
  padding: 1.4rem 2rem;
}
.ph-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .3rem;
}
.ph-stat-num {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 300;
  font-size: 2rem;
  color: var(--white);
  line-height: 1;
}
.ph-stat-label {
  font-family: 'DM Sans', sans-serif;
  font-size: .58rem;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
}

@media (max-width: 700px) {
  .proyectos-hero { padding: 7.5rem 1.4rem 2.5rem; }
  .ph-eyebrow { font-size: .58rem; letter-spacing: .3em; }
  .ph-desc { font-size: .88rem; margin-bottom: 1.8rem; }
  .ph-stats { gap: 1.6rem; padding: 1rem 1rem; flex-wrap: wrap; justify-content: center; }
  .ph-stat-num { font-size: 1.5rem; }
  .ph-stat-label { font-size: .52rem; letter-spacing: .22em; }
}

/* ── Filtros ──────────────────────────────────────────────────────────────── */
.proyectos-filtros {
  padding: 2.5rem 5% 1rem;
  background: var(--dark);
  border-bottom: 1px solid rgba(255,255,255,.06);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(35,33,30,.92);
}
.filtros-row {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  align-items: flex-end;
}
.filtro-group {
  display: flex;
  flex-direction: column;
  gap: .8rem;
}
.filtro-label {
  font-family: 'DM Sans', sans-serif;
  font-size: .58rem;
  font-weight: 500;
  letter-spacing: .38em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
}
.filtro-options {
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
}
.filtro-btn {
  background: transparent;
  color: rgba(255,255,255,.7);
  border: 1px solid rgba(255,255,255,.16);
  padding: .55rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: .65rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .35s cubic-bezier(.4,0,.2,1);
}
.filtro-btn:hover {
  border-color: var(--salmon);
  color: var(--white);
}
.filtro-btn.active {
  background: var(--salmon);
  color: var(--dark);
  border-color: var(--salmon);
}

@media (max-width: 700px) {
  .proyectos-filtros { padding: 1.6rem 1rem 1rem; }
  .filtros-row { gap: 1.4rem; }
  .filtro-btn { padding: .45rem .8rem; font-size: .58rem; letter-spacing: .18em; }
}

/* ── Grid de proyectos ────────────────────────────────────────────────────── */
.proyectos-grid-wrap {
  padding: 3rem 5% 6rem;
  background: var(--dark);
}
.proyectos-grid {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}
.proyecto-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  cursor: pointer;
  background: var(--dark2);
  opacity: 0;
  animation: cardFadeIn .6s cubic-bezier(.2,.7,.2,1) forwards;
}
@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.proyecto-card.filtered-out {
  display: none;
}
.proyecto-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.5s cubic-bezier(.2,.7,.2,1), filter .6s;
  filter: brightness(.85) saturate(.95);
}
.proyecto-card:hover img {
  transform: scale(1.05);
  filter: brightness(1) saturate(1);
}
.proyecto-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, transparent 50%, rgba(0,0,0,.85) 100%);
  pointer-events: none;
}
.proyecto-card-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.8rem 1.6rem;
  z-index: 2;
}
.pc-num {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 300;
  font-size: 1.4rem;
  color: var(--salmon);
  line-height: 1;
  margin-bottom: .6rem;
}
.pc-name {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 1.85rem;
  color: var(--white);
  line-height: 1.05;
  margin-bottom: .4rem;
}
.pc-meta {
  font-family: 'DM Sans', sans-serif;
  font-size: .6rem;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: rgba(255,255,255,.62);
}
.pc-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: .54rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  color: var(--mint);
  padding: .35rem .6rem;
  border: 1px solid rgba(107,170,155,.32);
  z-index: 2;
}

@media (max-width: 1100px) {
  .proyectos-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .proyectos-grid { grid-template-columns: 1fr; gap: 1rem; }
  .pc-name { font-size: 1.5rem; }
  .proyecto-card { aspect-ratio: 4 / 4; }
  .proyectos-grid-wrap { padding: 1.8rem 1rem 6rem; }
}

/* ── Empty state ──────────────────────────────────────────────────────────── */
.proyectos-empty {
  text-align: center;
  padding: 5rem 2rem;
}
.proyectos-empty p {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 1.4rem;
  color: rgba(255,255,255,.6);
  margin-bottom: 1.6rem;
}

/* ── Lightbox ─────────────────────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15,13,11,.96);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s ease;
}
.lightbox.open {
  opacity: 1;
  pointer-events: all;
}
.lightbox-close {
  position: absolute;
  top: 1.4rem;
  right: 1.4rem;
  background: transparent;
  border: 1px solid rgba(255,255,255,.18);
  color: rgba(255,255,255,.9);
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .35s;
  z-index: 2;
}
.lightbox-close:hover {
  background: var(--salmon);
  border-color: var(--salmon);
  color: var(--dark);
}
.lightbox-content {
  flex: 1;
  display: grid;
  grid-template-columns: 60px 1fr 60px;
  align-items: center;
  padding: 4rem 1rem 1rem;
  gap: 1rem;
  min-height: 0;
}
.lightbox-nav {
  background: transparent;
  border: 1px solid rgba(255,255,255,.18);
  color: rgba(255,255,255,.85);
  width: 50px;
  height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .35s;
  justify-self: center;
}
.lightbox-nav:hover {
  background: rgba(255,255,255,.08);
  border-color: var(--salmon);
  color: var(--salmon);
}
.lightbox-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  height: 100%;
  padding: 1rem;
}
.lightbox-stage img {
  max-width: 100%;
  max-height: calc(100vh - 220px);
  object-fit: contain;
  width: auto;
  height: auto;
  transition: opacity .35s ease;
}
.lightbox-stage img.swapping {
  opacity: 0;
}
.lightbox-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem 3rem 2.5rem;
  flex-wrap: wrap;
}
.lb-info-left {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.lb-name {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 1.7rem;
  font-weight: 400;
  color: var(--white);
  line-height: 1;
}
.lb-meta {
  font-family: 'DM Sans', sans-serif;
  font-size: .65rem;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
}
.lb-info-right {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.lb-toggle-wrap {
  display: flex;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(0,0,0,.3);
}
.lb-toggle {
  background: transparent;
  border: 0;
  padding: .5rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: .6rem;
  font-weight: 500;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
  cursor: pointer;
  transition: all .35s;
}
.lb-toggle.active {
  background: var(--salmon);
  color: var(--dark);
}
.lb-counter {
  font-family: 'DM Sans', sans-serif;
  font-size: .68rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: rgba(255,255,255,.65);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 700px) {
  .lightbox-content {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    padding: 4rem .5rem .5rem;
  }
  .lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
  }
  .lightbox-nav.prev { left: .5rem; }
  .lightbox-nav.next { right: .5rem; }
  .lightbox-stage img { max-height: calc(100vh - 240px); }
  .lightbox-info { padding: 1rem 1rem 1.5rem; gap: 1rem; flex-direction: column; align-items: flex-start; }
  .lb-info-right { width: 100%; justify-content: space-between; }
  .lb-name { font-size: 1.3rem; }
}