/* ============================================================
   KIOS — CATÁLOGO EDITORIAL DE PROPUESTAS WEB 2026
   Diseño Arquitectónico · Bordes Rectos · Gran Formato
   ============================================================ */

@font-face {
  font-family: 'Titillium';
  src: url('assets/TitilliumWeb-Light.ttf') format('truetype');
  font-weight: 300;
  font-display: swap;
}
@font-face {
  font-family: 'Titillium';
  src: url('assets/TitilliumWeb-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Titillium';
  src: url('assets/TitilliumWeb-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: 'Titillium';
  src: url('assets/TitilliumWeb-Bold.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
}

/* — VARIABLES & TOKENS — */
:root {
  --kios-blue:        #002175;
  --kios-blue-deep:   #001854;
  --kios-navy:        #0B132B;
  --kios-dark:        #060A17;
  --kios-dark-surface:#0D162C;
  --kios-cyan:        #00C1DD;
  --kios-green:       #22CC7E;
  --kios-light:       #F3F5FA;
  --kios-white:       #FFFFFF;
  --kios-border:      #D4D9E8;
  --kios-border-dark: #1E2D4E;
  --kios-ink:         #0C1222;
  --kios-muted:       #54607B;
  --kios-subtle:      #8692AE;
  --max-w:            1640px;
  --pad-x:            clamp(20px, 4.5vw, 64px);
  --ease:             cubic-bezier(0.2, 0, 0.1, 1);
  --trans:            0.25s cubic-bezier(0.2, 0, 0.1, 1);
}

/* — REGLA ESTRICTA: BORDES RECTOS EN TODO EL SISTEMA — */
*, *::before, *::after {
  box-sizing: border-box;
  border-radius: 0 !important;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 130px;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--kios-light);
  color: var(--kios-ink);
  font-family: 'Titillium', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3, h4, h5, p {
  margin: 0;
}

/* Accesibilidad Skip */
.skip-nav {
  position: fixed;
  top: -100px;
  left: 20px;
  background: var(--kios-blue);
  color: #fff;
  padding: 12px 24px;
  z-index: 9999;
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: top 0.2s;
}
.skip-nav:focus {
  top: 15px;
}

/* ============================================================
   CABECERA PRINCIPAL (STICKY)
   ============================================================ */
.editorial-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--kios-blue);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0 var(--pad-x);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  height: 32px;
  width: auto;
}

.brand-divider {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.2);
}

.brand-tagline {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hnav-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
  border: 1px solid transparent;
  transition: all var(--trans);
}

.hnav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.hnav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--kios-cyan);
}

.hnav-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  background: rgba(0, 193, 221, 0.2);
  color: var(--kios-cyan);
  border: 1px solid rgba(0, 193, 221, 0.4);
}

/* ============================================================
   MASTHEAD EDITORIAL SOBRIO (SIN HERO)
   ============================================================ */
.editorial-masthead {
  background: #FFFFFF;
  border-bottom: 2px solid var(--kios-blue);
  padding: clamp(40px, 5vw, 68px) var(--pad-x) clamp(32px, 4vw, 56px);
}

.masthead-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.masthead-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--kios-blue);
  margin-bottom: 20px;
}

.masthead-eyebrow::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 2px;
  background: var(--kios-blue);
}

.masthead-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 48px;
  align-items: end;
}

.masthead-title {
  font-size: clamp(38px, 4.8vw, 68px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--kios-blue);
  text-transform: uppercase;
}

.masthead-desc-block {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.masthead-description {
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.6;
  color: var(--kios-muted);
}

.masthead-metrics {
  display: flex;
  align-items: stretch;
  gap: 16px;
  border-top: 1px solid var(--kios-border);
  padding-top: 20px;
}

.metric-item {
  flex: 1;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 16px;
  background: var(--kios-light);
  border: 1px solid var(--kios-border);
}

.metric-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--kios-blue);
  line-height: 1;
}

.metric-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--kios-muted);
  line-height: 1.3;
}

/* ============================================================
   BARRA DE SUBCONTROL Y SECCIONES (STICKY SECUNDARIA)
   ============================================================ */
.section-control-bar {
  background: #FFFFFF;
  border-bottom: 1px solid var(--kios-border);
  padding: 0 var(--pad-x);
  position: sticky;
  top: 72px;
  z-index: 900;
}

.control-bar-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  gap: 20px;
}

.control-tabs {
  display: flex;
  height: 100%;
}

.control-tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 24px;
  height: 100%;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--kios-muted);
  border-bottom: 3px solid transparent;
  transition: all var(--trans);
}

.control-tab:hover {
  color: var(--kios-blue);
}

.control-tab.active {
  color: var(--kios-blue);
  border-bottom-color: var(--kios-blue);
  background: rgba(0, 33, 117, 0.03);
}

.tab-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  background: var(--kios-light);
  border: 1px solid var(--kios-border);
  color: var(--kios-muted);
}

.control-tab.active .tab-badge {
  background: var(--kios-blue);
  color: #FFFFFF;
  border-color: var(--kios-blue);
}

/* Toggle de vista de columnas */
.view-mode-selector {
  display: flex;
  align-items: center;
  gap: 8px;
}

.selector-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--kios-subtle);
}

.view-btn-group {
  display: flex;
  border: 1px solid var(--kios-border);
  background: var(--kios-light);
}

.view-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--kios-muted);
  transition: all var(--trans);
}

.view-toggle-btn.active {
  background: var(--kios-blue);
  color: #FFFFFF;
}

.view-toggle-btn:not(.active):hover {
  background: #E6EAF4;
  color: var(--kios-blue);
}

/* ============================================================
   SECCIÓN 01: PROPUESTAS NAVEGABLES (GRAN FORMATO EDITORIAL)
   ============================================================ */
.catalog-section {
  padding: clamp(48px, 6vw, 84px) var(--pad-x);
}

.catalog-section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-headline-bar {
  margin-bottom: clamp(32px, 4vw, 56px);
  border-bottom: 1px solid var(--kios-border);
  padding-bottom: 24px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.headline-text {
  max-width: 800px;
}

.section-index-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #FFFFFF;
  background: var(--kios-blue);
  padding: 4px 10px;
  margin-bottom: 12px;
}

.section-main-title {
  font-size: clamp(30px, 3.5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--kios-blue);
  line-height: 1.1;
  text-transform: uppercase;
}

.section-subtitle-text {
  margin-top: 10px;
  font-size: clamp(15px, 1.1vw, 17px);
  color: var(--kios-muted);
  line-height: 1.6;
}

.section-badge-counter {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--kios-blue);
  padding: 8px 16px;
  border: 1px solid var(--kios-blue);
  background: #FFFFFF;
  white-space: nowrap;
}

/* GRID DE TARJETAS EDITORIALES */
.proposals-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(32px, 4vw, 56px);
}

/* Modo 1 columna (Gran formato pleno) */
.proposals-grid.view-single-col {
  grid-template-columns: 1fr;
  max-width: 1440px;
  margin: 0 auto;
}

/* TARJETA EDITORIAL INDIVIDUAL */
.proposal-card {
  background: #FFFFFF;
  border: 1px solid var(--kios-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
  position: relative;
}

.proposal-card:hover {
  transform: translateY(-5px);
  border-color: var(--kios-blue);
  box-shadow: 0 20px 48px rgba(0, 33, 117, 0.12), 0 4px 12px rgba(0, 33, 117, 0.04);
}

/* Barra superior de la tarjeta */
.card-header-line {
  padding: 14px 24px;
  background: #FFFFFF;
  border-bottom: 1px solid var(--kios-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.card-badge-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-collection-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  background: var(--kios-blue);
  color: #FFFFFF;
}

.card-collection-badge.replica {
  background: var(--kios-navy);
  color: var(--kios-cyan);
  border: 1px solid rgba(0, 193, 221, 0.4);
}

.card-index-number {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--kios-muted);
  font-family: monospace, 'Titillium', sans-serif;
}

.card-status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--kios-blue);
}

.status-beacon {
  width: 8px;
  height: 8px;
  background: var(--kios-green);
  display: inline-block;
}

/* Escenario de imagen (GRANDE, AMPLIO, EDITORIAL) */
.card-stage-container {
  position: relative;
  background: #E8ECF5;
  overflow: hidden;
  border-bottom: 1px solid var(--kios-border);
  aspect-ratio: 16 / 10;
}

.proposals-grid.view-single-col .card-stage-container {
  aspect-ratio: 16 / 9;
  max-height: 720px;
}

.card-image-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.card-stage-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.45s var(--ease);
}

.proposal-card:hover .card-stage-img {
  transform: scale(1.025);
}

/* Hover overlay en imagen */
.card-stage-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 33, 117, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--trans);
}

.proposal-card:hover .card-stage-overlay {
  opacity: 1;
}

.stage-inspect-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #FFFFFF;
  color: var(--kios-blue);
  padding: 14px 24px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
  transform: translateY(8px);
  transition: transform var(--trans);
}

.proposal-card:hover .stage-inspect-badge {
  transform: translateY(0);
}

/* Bloque editorial de contenido */
.card-editorial-body {
  padding: clamp(24px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  flex: 1;
  background: #FFFFFF;
}

.card-meta-category {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kios-subtle);
  margin-bottom: 8px;
}

.card-project-title {
  font-size: clamp(24px, 2.2vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--kios-blue);
  line-height: 1.15;
  margin-bottom: 14px;
}

.card-project-title a:hover {
  color: var(--kios-cyan);
}

.card-project-description {
  font-size: 15px;
  line-height: 1.65;
  color: var(--kios-muted);
  margin-bottom: 24px;
  flex: 1;
}

/* Ficha técnica de specs */
.card-technical-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  border-top: 1px solid var(--kios-border);
  border-bottom: 1px solid var(--kios-border);
  padding: 14px 0;
  margin-bottom: 24px;
}

.spec-column {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.spec-key {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--kios-subtle);
}

.spec-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--kios-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Botones de acción rectos */
.card-actions-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn-primary-action {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  background: var(--kios-blue);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--kios-blue);
  transition: all var(--trans);
}

.btn-primary-action:hover {
  background: var(--kios-navy);
  border-color: var(--kios-navy);
  color: var(--kios-cyan);
}

.btn-secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
  background: var(--kios-light);
  color: var(--kios-blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--kios-border);
  transition: all var(--trans);
}

.btn-secondary-action:hover {
  background: #FFFFFF;
  border-color: var(--kios-blue);
  color: var(--kios-blue);
}

/* ============================================================
   SECCIÓN 02: CONCEPTOS VISUALES (GALERÍA OSCURA DE ARTE)
   ============================================================ */
.art-gallery-section {
  background: var(--kios-dark);
  color: #FFFFFF;
  padding: clamp(64px, 8vw, 112px) var(--pad-x);
  border-top: 3px solid var(--kios-blue);
}

.art-gallery-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.art-gallery-header {
  border-bottom: 1px solid var(--kios-border-dark);
  padding-bottom: 36px;
  margin-bottom: clamp(48px, 6vw, 80px);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: end;
}

.art-header-main .section-index-tag {
  background: var(--kios-cyan);
  color: var(--kios-dark);
}

.art-gallery-title {
  font-size: clamp(34px, 4.2vw, 60px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  text-transform: uppercase;
  margin-top: 14px;
}

.art-gallery-title em {
  font-style: normal;
  color: var(--kios-cyan);
}

.art-gallery-intro {
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.7);
}

/* Series de Arte */
.art-series-block {
  margin-bottom: clamp(56px, 7vw, 96px);
}

.art-series-block:last-child {
  margin-bottom: 0;
}

.series-title-bar {
  display: flex;
  align-items: baseline;
  gap: 20px;
  border-bottom: 1px solid var(--kios-border-dark);
  padding-bottom: 18px;
  margin-bottom: 32px;
}

.series-roman-index {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  color: var(--kios-cyan);
  font-family: 'Times New Roman', serif;
  line-height: 1;
}

.series-title-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.series-heading-text {
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #FFFFFF;
}

.series-narrative-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  max-width: 80ch;
}

/* Grid de Obras de Arte */
.artwork-editorial-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(28px, 3.5vw, 48px);
}

.artwork-editorial-grid.trio-grid {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1200px) {
  .artwork-editorial-grid.trio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Pieza de Arte Individual */
.artwork-item {
  background: var(--kios-dark-surface);
  border: 1px solid var(--kios-border-dark);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform var(--trans), border-color var(--trans), box-shadow var(--trans);
}

.artwork-item:hover {
  transform: translateY(-6px);
  border-color: var(--kios-cyan);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.6);
}

.artwork-frame {
  position: relative;
  background: #02040A;
  overflow: hidden;
  border-bottom: 1px solid var(--kios-border-dark);
  aspect-ratio: 16 / 10;
}

.artwork-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.45s var(--ease);
}

.artwork-item:hover .artwork-img {
  transform: scale(1.03);
}

.artwork-index-stamp {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(6, 10, 23, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--kios-cyan);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  letter-spacing: 0.1em;
  font-family: monospace, sans-serif;
}

.artwork-zoom-veil {
  position: absolute;
  inset: 0;
  background: rgba(0, 33, 117, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--trans);
}

.artwork-item:hover .artwork-zoom-veil {
  opacity: 1;
}

.artwork-zoom-prompt {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #FFFFFF;
  color: var(--kios-dark);
  padding: 12px 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: translateY(6px);
  transition: transform var(--trans);
}

.artwork-item:hover .artwork-zoom-prompt {
  transform: translateY(0);
}

/* Cédula Curatorial / Placard */
.artwork-placard {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.placard-meta-series {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kios-cyan);
  margin-bottom: 8px;
}

.placard-work-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #FFFFFF;
  margin-bottom: 12px;
  line-height: 1.2;
}

.placard-narrative-text {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 20px;
  flex: 1;
}

.placard-action-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--kios-border-dark);
  padding-top: 16px;
}

.placard-expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #FFFFFF;
  transition: color var(--trans);
}

.artwork-item:hover .placard-expand-btn {
  color: var(--kios-cyan);
}

.placard-format-badge {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
  font-family: monospace;
}

/* ============================================================
   MODAL LIGHTBOX (BORDES RECTOS, ALTA DEFINICIÓN)
   ============================================================ */
.editorial-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(4, 7, 16, 0.96);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  backdrop-filter: blur(12px);
}

.editorial-lightbox.is-active {
  display: flex;
}

.lightbox-modal-window {
  width: 100%;
  max-width: 1540px;
  height: 92vh;
  background: var(--kios-dark-surface);
  border: 1px solid var(--kios-border-dark);
  display: grid;
  grid-template-columns: 1fr 420px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.8);
  position: relative;
}

.lightbox-visual-pane {
  background: #020409;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.lightbox-active-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-curatorial-pane {
  background: var(--kios-dark);
  border-left: 1px solid var(--kios-border-dark);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-y: auto;
}

.lightbox-close-trigger {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  font-size: 20px;
  transition: all var(--trans);
}

.lightbox-close-trigger:hover {
  background: #FFFFFF;
  color: var(--kios-dark);
}

.lb-content-block {
  margin-top: 24px;
}

.lb-meta-series {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--kios-cyan);
  margin-bottom: 12px;
}

.lb-title {
  font-size: clamp(26px, 2.5vw, 36px);
  font-weight: 700;
  line-height: 1.1;
  color: #FFFFFF;
  margin-bottom: 18px;
}

.lb-divider-line {
  width: 48px;
  height: 2px;
  background: var(--kios-cyan);
  margin-bottom: 24px;
}

.lb-description-text {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
}

.lb-index-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 6px 12px;
  background: rgba(0, 193, 221, 0.15);
  border: 1px solid var(--kios-cyan);
  color: var(--kios-cyan);
  margin-bottom: 32px;
}

.lightbox-nav-controls {
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--kios-border-dark);
  padding-top: 24px;
}

.lb-nav-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all var(--trans);
}

.lb-nav-btn:hover {
  background: var(--kios-cyan);
  border-color: var(--kios-cyan);
  color: var(--kios-dark);
}

/* ============================================================
   PIE DE PÁGINA EDITORIAL
   ============================================================ */
.editorial-footer {
  background: var(--kios-blue-deep);
  color: #FFFFFF;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: clamp(56px, 6vw, 84px) var(--pad-x) 36px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 48px;
  margin-bottom: 32px;
}

.footer-brand-summary {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.footer-logo {
  width: 108px;
  max-width: 108px;
  height: auto;
  align-self: flex-start;
  object-fit: contain;
}

.footer-summary-p {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  max-width: 58ch;
}

.footer-nav-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--kios-cyan);
  margin-bottom: 8px;
}

.footer-nav-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link-item {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color var(--trans);
}

.footer-link-item:hover {
  color: var(--kios-cyan);
}

.footer-bottom-legal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.5;
  flex-wrap: wrap;
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--trans);
}

.back-to-top-btn:hover {
  color: #FFFFFF;
  border-color: #FFFFFF;
  background: rgba(255, 255, 255, 0.1);
}

/* ============================================================
   RESPONSIVIDAD & ADAPTABILIDAD
   ============================================================ */
@media (max-width: 1024px) {
  .masthead-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .art-gallery-header {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .proposals-grid {
    grid-template-columns: 1fr;
  }
  .artwork-editorial-grid {
    grid-template-columns: 1fr;
  }
  .lightbox-modal-window {
    grid-template-columns: 1fr;
    height: 96vh;
  }
  .lightbox-curatorial-pane {
    border-left: none;
    border-top: 1px solid var(--kios-border-dark);
    padding: 24px;
  }
}

@media (max-width: 640px) {
  .header-tagline, .brand-divider {
    display: none;
  }
  .control-bar-inner {
    flex-direction: column;
    height: auto;
    padding: 12px 0;
    gap: 12px;
  }
  .card-technical-specs {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .card-actions-row {
    flex-direction: column;
  }
  .btn-primary-action, .btn-secondary-action {
    width: 100%;
  }
}