/* ==========================================================================
   KORAITH — Arquitectura Residencial Monolítica · Mediterráneo
   CSS3 Moderno · Variables CSS · Grid & Flexbox · Simetría Milimétrica
   ========================================================================== */

:root {
  /* Paleta de Colores Oficial */
  --bg-primary: #F4F2ED;        /* Piedra caliza cálida */
  --bg-secondary: #EAE6DF;      /* Superficie secundaria arena suave */
  --text-primary: #111111;      /* Negro carbón */
  --text-secondary: #55534E;    /* Gris pizarra */
  --accent: #8C5A3C;            /* Bronce / terracota apagada */
  --accent-hover: #73482E;      /* Bronce profundo (interacción) */
  --border-color: #D5D0C5;      /* Línea divisoria fina 1px */

  /* Tipografía */
  --font-display: 'Syne', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Retícula y Contenedores */
  --container-max: 1280px;
  --reading-max: 720px;
  --header-height: 76px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  /* Transiciones Sobrias */
  --ease-arch: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 220ms var(--ease-arch);
  --transition-med: 450ms var(--ease-arch);
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

html.modal-open,
body.modal-open {
  overflow: hidden !important;
  overscroll-behavior: none;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.65;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* Todos los párrafos de lectura estrictamente alineados a la izquierda */
p {
  text-align: left;
  color: var(--text-secondary);
  font-size: 1.0625rem;
  line-height: 1.7;
  font-weight: 400;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Utilidades de Contenedor y Tipografía Técnica
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.reading-block {
  max-width: var(--reading-max);
  text-align: left;
}

.eyebrow,
.tech-meta {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.75rem;
  line-height: 1.4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.eyebrow--accent {
  color: var(--accent);
}

.section-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.25rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--border-color);
}

/* --------------------------------------------------------------------------
   Header Minimalista & Navegación
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(244, 242, 237, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  line-height: 1;
  display: inline-flex;
  align-items: center;
}

.brand-logo span {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  padding: 0.25rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background-color: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link--cta {
  color: var(--text-primary);
}

/* Botón Hamburguesa Minimalista */
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background-color: transparent;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.menu-toggle:hover {
  border-color: var(--text-primary);
}

.menu-toggle-lines {
  width: 18px;
  height: 10px;
  position: relative;
  display: block;
}

.menu-toggle-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--text-primary);
  transition: transform var(--transition-fast), top var(--transition-fast), opacity var(--transition-fast);
}

.menu-toggle-line:nth-child(1) {
  top: 0;
}

.menu-toggle-line:nth-child(2) {
  top: 9px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-line:nth-child(1) {
  top: 4.5px;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-line:nth-child(2) {
  top: 4.5px;
  transform: rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Sección 1 — Hero Monolítico
   -------------------------------------------------------------------------- */
.hero {
  padding-top: clamp(3rem, 6vw, 5.5rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--border-color);
}

.hero-top {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.hero-copy {
  grid-column: 1 / 9;
}

.hero-eyebrow {
  display: inline-block;
  margin-bottom: 1.25rem;
  color: var(--accent);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 5.5vw, 4.75rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  text-align: left;
}

.hero-subtitle {
  max-width: var(--reading-max);
  font-size: clamp(1.0625rem, 1.4vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-secondary);
  text-align: left;
}

.hero-actions {
  grid-column: 9 / 13;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 1rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1rem 1.75rem;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1px solid var(--text-primary);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn-primary:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
}

.btn-arrow {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1;
  transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
  transform: translateY(2px);
}

/* Visual Monolítico Hero */
.hero-visual-wrapper {
  position: relative;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.hero-figure {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 8.5;
  overflow: hidden;
  background-color: #DCD6CA;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
  filter: contrast(1.06) saturate(0.88);
  transition: transform 1.2s var(--ease-arch);
}

.hero-visual-wrapper:hover .hero-image {
  transform: scale(1.015);
}

.hero-caption-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.hero-caption-item {
  padding: 0.875rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-right: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-caption-item:last-child {
  border-right: none;
}

.hero-caption-item strong {
  color: var(--text-primary);
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   Sección 2 — Manifiesto Constructivo (Criterio)
   -------------------------------------------------------------------------- */
.section-criterio {
  padding-top: clamp(4.5rem, 9vw, 8rem);
  padding-bottom: clamp(4.5rem, 9vw, 8rem);
  border-bottom: 1px solid var(--border-color);
}

.criterio-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.criterio-left {
  position: sticky;
  top: calc(var(--header-height) + 2.5rem);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 3.6vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  text-align: left;
  margin-bottom: 1.5rem;
}

.criterio-coords {
  display: inline-block;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.criterio-right {
  max-width: var(--reading-max);
  border-left: 1px solid var(--border-color);
  padding-left: clamp(1.5rem, 4vw, 3.5rem);
}

.criterio-paragraph {
  font-size: clamp(1.0625rem, 1.3vw, 1.1875rem);
  line-height: 1.75;
  color: var(--text-secondary);
  text-align: left;
}

.criterio-paragraph + .criterio-paragraph {
  margin-top: 1.75rem;
}

.criterio-paragraph strong {
  color: var(--text-primary);
  font-weight: 500;
}

.criterio-specs {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.spec-item {
  text-align: left;
}

.spec-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  letter-spacing: 0.04em;
}

.spec-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   Sección 3 — Obra Seleccionada (Curaduría de 3 Proyectos · Tarjetas Clicables)
   -------------------------------------------------------------------------- */
.section-obra {
  padding-top: clamp(4.5rem, 9vw, 8rem);
  padding-bottom: clamp(4.5rem, 9vw, 8rem);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.obra-intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.obra-intro .section-title {
  margin-bottom: 0;
}

.obra-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border-color);
  border-left: 1px solid var(--border-color);
}

.project-card {
  background-color: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  position: relative;
}

.project-card-top {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card:hover,
.project-card:focus-visible {
  background-color: var(--bg-secondary);
}

.project-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}

.project-index {
  color: var(--accent);
}

.project-media {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: #DFDBD2;
  border-bottom: 1px solid var(--border-color);
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) saturate(0.85);
  transition: transform 0.8s var(--ease-arch);
}

.project-card:hover .project-image {
  transform: scale(1.03);
}

.project-body {
  padding: 1.75rem 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.375rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  text-align: left;
}

.project-specs {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--accent);
  letter-spacing: 0.04em;
  padding-bottom: 1.125rem;
  margin-bottom: 1.125rem;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.project-description {
  font-size: 0.96875rem;
  line-height: 1.65;
  color: var(--text-secondary);
  text-align: left;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-cta-bar {
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-cta-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--transition-fast);
}

.project-cta-arrow {
  display: inline-block;
  color: var(--accent);
  transition: transform var(--transition-fast);
}

.project-card:hover .project-cta-link {
  color: var(--accent);
}

.project-card:hover .project-cta-arrow {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   Modal Editorial de Ficha Técnica + Carrusel de 3 Imágenes
   -------------------------------------------------------------------------- */
.project-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: rgba(17, 17, 17, 0.66);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 3vw, 2.5rem);
  opacity: 0;
  visibility: hidden;
  overscroll-behavior: contain;
  transition: opacity 260ms var(--ease-arch), visibility 260ms var(--ease-arch);
}

.project-modal-backdrop[hidden] {
  display: none;
}

.project-modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.project-modal-dialog {
  width: 100%;
  max-width: 1080px;
  max-height: calc(100dvh - 2.5rem);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-sizing: border-box;
  transform: translateY(10px);
  transition: transform 320ms var(--ease-arch);
}

.project-modal-backdrop.is-open .project-modal-dialog {
  transform: translateY(0);
}

.project-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 1.5rem;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.project-modal-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  min-width: 0;
}

.project-modal-ref {
  color: var(--accent);
}

.project-modal-status {
  color: var(--text-secondary);
}

.project-modal-close {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.project-modal-close:hover {
  background-color: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--bg-primary);
}

.project-modal-body {
  display: grid;
  grid-template-columns: 11fr 13fr;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

/* Galería Interactiva de 3 Fotografías */
.project-modal-gallery {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  min-width: 0;
}

.project-modal-figure {
  position: relative;
  flex-grow: 1;
  min-height: 320px;
  background-color: #DFDBD2;
  overflow: hidden;
}

.project-modal-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05) saturate(0.86);
  transition: opacity 220ms var(--ease-arch);
}

.project-modal-image.is-switching {
  opacity: 0.35;
}

.project-modal-carousel-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 46px;
  padding-left: 1.25rem;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
}

.modal-carousel-caption {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.modal-carousel-controls {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.modal-carousel-counter {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  padding: 0 0.875rem;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-left: 1px solid var(--border-color);
}

.modal-carousel-btn {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  border-left: 1px solid var(--border-color);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.modal-carousel-btn:hover {
  background-color: var(--accent);
  color: var(--bg-primary);
}

.project-modal-content {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  min-width: 0;
  box-sizing: border-box;
}

.project-modal-title-group {
  text-align: left;
  min-width: 0;
}

.project-modal-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-top: 0.4rem;
  text-align: left;
  overflow-wrap: break-word;
}

.project-modal-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--border-color);
  border-left: 1px solid var(--border-color);
  width: 100%;
  box-sizing: border-box;
}

.modal-spec-row {
  padding: 0.75rem 1rem;
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  text-align: left;
  min-width: 0;
  box-sizing: border-box;
}

.modal-spec-row--full {
  grid-column: 1 / -1;
}

.modal-spec-term {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
  overflow-wrap: break-word;
}

.modal-spec-desc {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--text-primary);
  letter-spacing: 0.03em;
  overflow-wrap: break-word;
  word-break: break-word;
}

.project-modal-memory-wrap {
  text-align: left;
  min-width: 0;
}

.modal-memory-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.project-modal-memory {
  font-size: 0.96875rem;
  line-height: 1.68;
  color: var(--text-secondary);
  text-align: left;
  overflow-wrap: break-word;
}

.project-modal-actions {
  padding-top: 0.25rem;
  display: flex;
  justify-content: flex-start;
  width: 100%;
}

.project-modal-cta {
  width: 100%;
  max-width: 100%;
  justify-content: space-between;
  box-sizing: border-box;
}

/* --------------------------------------------------------------------------
   Sección 4 — Método y Rigor
   -------------------------------------------------------------------------- */
.section-metodo {
  padding-top: clamp(4.5rem, 9vw, 8rem);
  padding-bottom: clamp(4.5rem, 9vw, 8rem);
  border-bottom: 1px solid var(--border-color);
}

.metodo-header {
  max-width: var(--reading-max);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.metodo-lead {
  margin-top: 1rem;
  text-align: left;
}

.metodo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.metodo-column {
  padding: clamp(2rem, 4vw, 3.25rem) clamp(1.5rem, 3vw, 2.5rem);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metodo-column:first-child {
  padding-left: 0;
}

.metodo-column:last-child {
  border-right: none;
  padding-right: 0;
}

.metodo-step-number {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  margin-bottom: 1.5rem;
  display: block;
}

.metodo-step-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.375rem;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1rem;
  text-align: left;
}

.metodo-step-text {
  font-size: 0.96875rem;
  line-height: 1.68;
  color: var(--text-secondary);
  text-align: left;
  margin-bottom: 2rem;
}

.metodo-step-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

/* --------------------------------------------------------------------------
   Sección 5 — Contacto / Dossier Privado
   -------------------------------------------------------------------------- */
.section-dossier {
  padding-top: clamp(4.5rem, 9vw, 8rem);
  padding-bottom: clamp(4.5rem, 9vw, 8rem);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.dossier-layout {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: start;
}

.dossier-info {
  max-width: var(--reading-max);
}

.dossier-description {
  margin-top: 1.25rem;
  margin-bottom: 2.25rem;
  text-align: left;
}

.dossier-meta-list {
  border-top: 1px solid var(--border-color);
}

.dossier-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.dossier-meta-label {
  color: var(--text-secondary);
  text-transform: uppercase;
}

.dossier-meta-value {
  color: var(--text-primary);
}

/* Formulario Limpio y Simétrico */
.dossier-form-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: clamp(1.75rem, 4vw, 3rem);
}

.dossier-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* Campo Honeypot Oculto Anti-Spam */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.form-group {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-Control,
.form-select {
  width: 100%;
  height: 50px;
  padding: 0 1rem;
  font-family: var(--font-sans);
  font-size: 0.96875rem;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.form-Control::placeholder {
  color: #8A867E;
}

.form-Control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent);
  background-color: var(--bg-primary);
}

/* Validación visual limpia en terracota (#8C5A3C) */
.form-Control.is-invalid,
.form-select.is-invalid {
  border-color: #8C5A3C !important;
  background-color: rgba(140, 90, 60, 0.05);
}

.form-select.is-preselected {
  border-color: var(--accent);
  background-color: var(--bg-primary);
}

.select-wrapper {
  position: relative;
}

.select-wrapper::after {
  content: "";
  position: absolute;
  right: 1.125rem;
  top: 50%;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--text-primary);
  border-bottom: 1.5px solid var(--text-primary);
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}

.form-select {
  padding-right: 2.5rem;
  cursor: pointer;
}

.field-error {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: #8C5A3C;
  margin-top: 0.5rem;
  display: none;
  text-align: left;
}

.field-error.is-visible {
  display: block;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding-top: 0.5rem;
}

.form-privacy-note {
  font-family: var(--font-mono);
  font-size: 0.71875rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.btn-submit {
  width: 100%;
  height: 52px;
  justify-content: center;
}

/* Estado de Confirmación Elegante */
.dossier-confirmation {
  display: none;
  padding: 1rem 0;
  text-align: left;
}

.dossier-confirmation.is-visible {
  display: block;
  animation: fadeInArch 450ms var(--ease-arch) forwards;
}

.confirmation-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.confirmation-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.625rem;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 0.875rem;
  text-align: left;
}

.confirmation-text {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
  text-align: left;
}

.confirmation-details {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.btn-reset-form {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.2rem;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.btn-reset-form:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}

@keyframes fadeInArch {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Footer Minimalista
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--bg-primary);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-align: left;
}

.footer-credit {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-align: left;
}

.footer-credit a {
  color: var(--text-primary);
  font-weight: 500;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.footer-credit a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* --------------------------------------------------------------------------
   Responsive Real para iPad / Tablet (768px a 1024px) & <= 1024px
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .container {
    padding-left: 32px;
    padding-right: 32px;
  }

  .hero-top {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .hero-copy,
  .hero-actions {
    grid-column: 1 / -1;
  }

  .hero-actions {
    align-items: flex-start;
  }

  .criterio-grid {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }

  .criterio-left {
    position: static;
  }

  .criterio-right {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
  }

  .obra-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .obra-grid .project-card:last-child {
    grid-column: 1 / -1;
  }

  .obra-grid .project-card:last-child .project-media {
    aspect-ratio: 16 / 9;
  }

  .metodo-grid {
    grid-template-columns: 1fr;
  }

  .metodo-column {
    padding: 2.25rem 0;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .metodo-column:last-child {
    border-bottom: none;
  }

  .dossier-layout {
    grid-template-columns: 1fr;
    gap: 2.75rem;
  }

  .project-modal-body {
    grid-template-columns: 1fr;
  }

  .project-modal-gallery {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .project-modal-figure {
    aspect-ratio: 16 / 9;
    min-height: 220px;
  }
}

/* --------------------------------------------------------------------------
   Responsive — Móvil & Ajuste Quirúrgico del Modal (max-width: 767px / 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  /* Menú móvil desplegable con simetría milimétrica y alto contraste en índices 01-04 */
  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
  }

  .nav-item {
    border-top: 1px solid var(--border-color);
  }

  .nav-item:first-child {
    border-top: none;
  }

  .nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 48px;
    padding: 0 20px;
    font-size: 0.875rem;
    line-height: 1;
    color: var(--text-primary);
  }

  /* Índices numéricos (01 a 04) con contraste reforzado para legibilidad perfecta */
  .nav-link::after {
    content: attr(data-index);
    position: static;
    width: auto;
    height: auto;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.5rem;
    transform: none;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: 0.08em;
    opacity: 1;
  }

  .hero-figure {
    aspect-ratio: 4 / 3;
  }

  .hero-caption-bar {
    grid-template-columns: 1fr;
  }

  .hero-caption-item {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
  }

  .hero-caption-item:last-child {
    border-bottom: none;
  }

  .criterio-specs {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .obra-intro {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .obra-grid {
    grid-template-columns: 1fr;
  }

  .obra-grid .project-card .project-media,
  .obra-grid .project-card:last-child .project-media {
    aspect-ratio: 16 / 10;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

@media (max-width: 767px) {
  .project-modal-backdrop {
    padding: 0;
  }

  .project-modal-dialog {
    width: calc(100vw - 24px);
    max-width: 100%;
    max-height: calc(100dvh - 24px);
    box-sizing: border-box;
    margin: 12px auto;
    overflow-x: hidden;
  }

  .project-modal-header {
    padding: 0.75rem 1rem;
  }

  .project-modal-meta {
    gap: 0.25rem 0.75rem;
    font-size: 0.6875rem;
  }

  .project-modal-figure {
    aspect-ratio: 16 / 10;
    min-height: 190px;
  }

  .project-modal-carousel-bar {
    padding-left: 0.875rem;
    min-height: 42px;
  }

  .modal-carousel-counter {
    height: 42px;
    padding: 0 0.65rem;
    font-size: 0.6875rem;
  }

  .modal-carousel-btn {
    width: 42px;
    height: 42px;
  }

  .project-modal-content {
    padding: 1.25rem 1rem 1.5rem;
    gap: 1.25rem;
  }

  .project-modal-specs {
    grid-template-columns: 1fr;
  }

  .modal-spec-row {
    padding: 0.6875rem 0.875rem;
  }

  .project-modal-cta {
    padding: 0.875rem 1rem;
    font-size: 0.8125rem;
  }
}