/* ============================================================
   ILUSTRACIÓN — GRID 3D + PREVIEW
   ============================================================ */

body.illustration-preview-open {
  overflow: hidden;
}

.illustration-projects-section {
  position: relative;
  padding: 120px 58px 140px;
  background: var(--bone);
  color: var(--carbon);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.illustration-projects-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.illustration-projects-header {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 52px;
}

.illustration-projects-header h2 {
  max-width: 900px;
  margin: 26px 0 0;
  color: #050505;
  font-size: clamp(3rem, 6vw, 7.4rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
  font-weight: 900;
}

.illustration-projects-header > p {
  max-width: 560px;
  margin: 0 0 8px;
  color: var(--text-soft);
  font-size: 1.08rem;
  line-height: 1.6;
  letter-spacing: -0.025em;
}

/* FILTROS */

.illustration-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 42px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.illustration-filter {
  min-height: 42px;
  padding: 0 20px;
  border: 1px solid rgba(44, 47, 54, 0.28);
  border-radius: 999px;
  background: transparent;
  color: var(--carbon);
  cursor: pointer;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: transform 0.22s ease, background 0.22s ease, color 0.22s ease;
}

.illustration-filter:hover {
  transform: translateY(-2px);
}

.illustration-filter.is-active {
  background: var(--carbon);
  color: var(--bone);
}

/* GRID */

.illustration-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-rows: 82px;
  gap: 18px;
  perspective: 1200px;
  transform-style: preserve-3d;
}

.illustration-grid.is-inactive {
  pointer-events: none;
}

.illustration-grid-item {
  position: relative;
  grid-column: span 4;
  grid-row: span 4;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-align: left;
  transform-style: preserve-3d;
  will-change: transform, opacity;
}

.illustration-grid-item--wide {
  grid-column: span 6;
  grid-row: span 4;
}

.illustration-grid-item--portrait {
  grid-column: span 3;
  grid-row: span 5;
}

.illustration-grid-item--small {
  grid-column: span 3;
  grid-row: span 3;
}

.illustration-grid-item--tall {
  grid-column: span 4;
  grid-row: span 5;
}

.illustration-grid-item[hidden] {
  display: none;
}

.illustration-grid-media {
  position: absolute;
  inset: 0;
  display: block;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  transform-style: preserve-3d;
  box-shadow: 0 14px 34px rgba(23, 26, 31, 0.08);
}

.illustration-grid-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(23, 26, 31, 0.55));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.illustration-grid-item:hover .illustration-grid-media::after,
.illustration-grid-item:focus-visible .illustration-grid-media::after {
  opacity: 1;
}

.illustration-grid-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1), filter 0.35s ease;
}

.illustration-grid-media--contain img {
  object-fit: contain;
  padding: 12%;
}

.illustration-grid-item:hover .illustration-grid-media img {
  transform: scale(1.035);
  filter: contrast(1.04);
}

.illustration-grid-meta {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  z-index: 3;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  color: var(--bone);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.illustration-grid-item:hover .illustration-grid-meta,
.illustration-grid-item:focus-visible .illustration-grid-meta {
  opacity: 1;
  transform: translateY(0);
}

.illustration-grid-meta span {
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.illustration-grid-meta strong {
  max-width: 72%;
  font-size: clamp(1rem, 1.8vw, 1.6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-align: right;
}

.illustration-empty-message {
  margin: 36px 0 0;
  padding: 44px 24px;
  border: 1px solid var(--line);
  background: var(--paper);
  text-align: center;
  color: var(--text-soft);
}

/* PREVIEW */

.illustration-preview {
  position: fixed;
  inset: 0;
  z-index: 1600;
  display: none;
  pointer-events: none;
}

.illustration-preview.is-open {
  display: block;
  pointer-events: auto;
}

.illustration-preview-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(23, 26, 31, 0.52);
  backdrop-filter: blur(12px);
  opacity: 0;
}

.illustration-preview-panel {
  position: absolute;
  inset: 18px;
  overflow-y: auto;
  background: var(--bone);
  color: var(--carbon);
  border: 1px solid rgba(250, 248, 245, 0.16);
  opacity: 0;
  transform: translateY(80px);
}

.illustration-preview-close {
  position: sticky;
  top: 0;
  z-index: 3;
  margin: 0;
  min-height: 58px;
  padding: 0 28px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(250, 248, 245, 0.92);
  color: var(--carbon);
  backdrop-filter: blur(12px);
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.illustration-preview-layout {
  width: min(100%, 1320px);
  min-height: calc(100vh - 96px);
  margin: 0 auto;
  padding: 56px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 72px;
  align-items: center;
}

.illustration-preview-image-wrap {
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  transform-origin: 50% 100%;
}

.illustration-preview-image {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.illustration-preview-content {
  align-self: center;
}

.illustration-preview-category,
.illustration-preview-year {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.illustration-preview-title {
  margin: 18px 0 26px;
  color: #050505;
  font-size: clamp(4rem, 9vw, 9.5rem);
  line-height: 0.82;
  letter-spacing: -0.09em;
  font-weight: 900;
}

.illustration-preview-year {
  margin-bottom: 30px;
}

.illustration-preview-description {
  max-width: 620px;
  margin: 0 0 34px;
  color: var(--text-soft);
  font-size: clamp(1.08rem, 1.5vw, 1.35rem);
  line-height: 1.58;
  letter-spacing: -0.03em;
}

/* TABLET */

@media (max-width: 980px) {
  .illustration-projects-section {
    padding: 100px 24px 120px;
  }

  .illustration-projects-header {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .illustration-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
    grid-auto-rows: 76px;
  }

  .illustration-grid-item,
  .illustration-grid-item--wide,
  .illustration-grid-item--tall {
    grid-column: span 4;
  }

  .illustration-grid-item--portrait,
  .illustration-grid-item--small {
    grid-column: span 4;
    grid-row: span 4;
  }

  .illustration-preview-layout {
    grid-template-columns: 1fr;
    gap: 42px;
    padding: 42px 28px 70px;
  }

  .illustration-preview-image-wrap {
    max-height: 58vh;
    aspect-ratio: 16 / 10;
  }
}

/* MOBILE */

@media (max-width: 640px) {
  .illustration-projects-section {
    padding: 84px 24px 100px;
  }

  .illustration-projects-header h2 {
    font-size: clamp(2.7rem, 14vw, 5rem);
  }

  .illustration-filters {
    flex-wrap: nowrap;
    margin-right: -24px;
    padding-right: 24px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .illustration-filters::-webkit-scrollbar {
    display: none;
  }

  .illustration-filter {
    flex: 0 0 auto;
  }

  .illustration-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    gap: 14px;
  }

  .illustration-grid-item,
  .illustration-grid-item--wide,
  .illustration-grid-item--portrait,
  .illustration-grid-item--small,
  .illustration-grid-item--tall {
    grid-column: 1;
    grid-row: auto;
    min-height: 280px;
  }

  .illustration-grid-meta {
    opacity: 1;
    transform: none;
  }

  .illustration-grid-media::after {
    opacity: 0.42;
  }

  .illustration-preview-panel {
    inset: 0;
  }

  .illustration-preview-layout {
    min-height: auto;
    padding: 26px 20px 60px;
  }

  .illustration-preview-image-wrap {
    aspect-ratio: 4 / 5;
    max-height: none;
  }

  .illustration-preview-title {
    font-size: clamp(3.4rem, 17vw, 6rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .illustration-grid-item,
  .illustration-grid-media img,
  .illustration-grid-meta,
  .illustration-preview-panel,
  .illustration-preview-backdrop {
    transition: none;
  }
}

/* Mantiene completas las piezas SVG o de identidad en la vista ampliada */
.illustration-preview-image.is-contain {
  object-fit: contain;
  padding: clamp(28px, 6vw, 76px);
}