:root {
  color-scheme: dark;
  --bg: #000000;              /* Fondo negro puro */
  --surface: #0a0a0a;         /* Superficie oscura profunda */
  --text: #ffffff;            /* Texto blanco puro */
  --muted: #a0a0a0;           /* Gris de lectura secondary */
  --red: #ff0000;             /* Rojo intenso puro */
  --line: #181818;            /* Divisiones sutiles */
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -0.02em;
  overflow-x: hidden;
  position: relative;
}

/* 1. TEXTURA DE FONDO (EFECTO NOISE / GRANO ANALÓGICO) */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  opacity: 0.045; /* Densidad sutil para no fatigar la vista */
  pointer-events: none;
  z-index: 9999; /* Siempre por encima para unificar texturas */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

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

/* MICRO-INTERACCIONES DE TERMINAL: CURSOR PARPADEANTE */
.eyebrow {
  color: var(--red);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin: 0;
  display: inline-flex;
  align-items: center;
}

.eyebrow::after {
  content: "_";
  color: var(--red);
  margin-left: 3px;
  animation: terminal-blink 1s step-start infinite;
}

@keyframes terminal-blink {
  50% { opacity: 0; }
}

/* NAVBAR ANCLADA */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem clamp(1.5rem, 5vw, 5rem);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: padding 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
  padding: 1rem clamp(1.5rem, 5vw, 5rem);
  background: rgba(0, 0, 0, 0.95);
}

.brand {
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  color: var(--text);
}

.main-nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
}

.main-nav a {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.25s ease;
}

.main-nav a:hover {
  color: var(--red);
}

.header-cta {
  color: var(--text);
  transition: color 0.25s;
}

.header-cta:hover, .floating-instagram:hover {
  color: var(--red);
}

.header-cta svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding: 10rem clamp(1.5rem, 5vw, 5rem) 5rem;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.2) 50%, rgba(0,0,0,0.95) 100%);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.8s ease-in-out;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(130%) brightness(0.25);
}

.hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
}

h1 {
  margin: 1.5rem 0 3.5rem;
  font-size: clamp(2.5rem, 7.5vw, 6.2rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.04em;
  max-width: 18ch;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  background: var(--text);
  color: var(--bg);
}

.button.primary:hover {
  background: var(--red);
  color: var(--text);
}

.button.ghost {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text);
  background: transparent;
}

.button.ghost:hover {
  border-color: var(--red);
  color: var(--red);
}

/* SECCIONES */
.section {
  padding: clamp(5rem, 8vw, 8rem) clamp(1.5rem, 5vw, 5rem);
  border-bottom: 1px solid var(--line);
}

h2 {
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin: 1rem 0 0 0;
}

.section-heading {
  max-width: 1000px;
  margin-bottom: 5rem;
}

.section-heading p {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 2rem;
}

/* SECCIÓN SPLIT (GUÍA) */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}

.sticky-text {
  position: sticky;
  top: 7rem;
}

.sticky-text p {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--muted);
  margin-top: 2rem;
}

.editorial-stack {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

/* ANIMACIÓN SCROLL: BLOQUES EDITORIALES */
.editorial-block {
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.editorial-block.in-view {
  opacity: 1;
  transform: translateY(0);
}

.editorial-block span {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--red);
  letter-spacing: 0.1em;
}

.editorial-block h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 1rem 0;
  text-transform: uppercase;
}

.editorial-block p {
  color: var(--muted);
  line-height: 1.6;
  font-size: 1rem;
}

/* SECCIÓN MÉTODO */
.method {
  background: var(--surface);
}

.large-typography-grid {
  display: flex;
  flex-direction: column;
}

/* ANIMACIÓN SCROLL: FILAS DE MÉTODOS Y DESPLAZAMIENTO LATERAL */
.typo-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  border-top: 1px solid var(--line);
  padding: 3rem 0;
  align-items: start;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.typo-row:last-child {
  border-bottom: 1px solid var(--line);
}

.typo-row .num {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--red);
  transform: translateX(-30px);
  transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Activación por JS */
.typo-row.in-view {
  opacity: 1;
  transform: translateY(0);
}

.typo-row.in-view .num {
  transform: translateX(0);
}

.typo-row .content h3 {
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0 0 1rem 0;
}

.typo-row .content p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
  margin: 0;
  max-width: 65ch;
}

/* GALERÍA EDITORIAL */
.gallery-showcase {
  display: flex;
  flex-direction: column;
  gap: 8rem;
  margin-top: 4rem;
}

.gallery-item {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.gallery-item.in-view {
  opacity: 1;
  transform: translateY(0);
}

.gallery-item.reverse {
  grid-template-columns: 0.8fr 1.2fr;
}

.gallery-item.reverse .gallery-media {
  grid-column: 2;
}

.gallery-item.reverse .gallery-meta {
  grid-column: 1;
  grid-row: 1;
}

.gallery-media {
  overflow: hidden;
  background: #000000;
  border: 1px solid var(--line);
}

/* 2. TRATAMIENTO DE IMÁGENES: FILTRO DUOTONO / GRIS A COLOR */
.gallery-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: grayscale(100%) contrast(120%) brightness(0.7);
  transition: filter 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item:hover .gallery-media img {
  filter: grayscale(0%) contrast(105%) brightness(1);
  transform: scale(1.02);
}

.gallery-meta {
  display: flex;
  flex-direction: column;
}

.meta-tag {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.gallery-meta h3 {
  font-size: 2.2rem;
  font-weight: 900;
  margin: 0 0 1.5rem 0;
  letter-spacing: -0.02em;
}

.gallery-meta p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
  margin: 0 0 2rem 0;
}

.meta-focus {
  border-left: 2px solid var(--red);
  padding-left: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text);
}

/* ENTRADAS DEL AULA */
.entries-section {
  background: var(--bg);
}

.editorial-entries-list {
  display: flex;
  flex-direction: column;
}

.entry-editorial-row {
  display: grid;
  grid-template-columns: 0.3fr 0.7fr 1fr;
  gap: 2rem;
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
}

.entry-editorial-row:last-child {
  border-bottom: 1px solid var(--line);
}

.entry-editorial-row .entry-cat {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--red);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.entry-editorial-row h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0;
  text-transform: uppercase;
}

.entry-editorial-row p {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.6;
  margin: 0;
}

/* MICRO-INTERACCIONES DE TERMINAL: MATRIZ DE ENTRADAS */
.instrument-section {
  background: var(--surface);
}

.editorial-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.5rem 2rem;
  margin-top: 4rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.form-group.span-2 {
  grid-column: span 2;
}

.editorial-form label {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text);
  transition: color 0.3s ease;
}

.editorial-form input,  
.editorial-form textarea {
  width: 100%;
  border: none;
  border-bottom: 2px solid var(--line);
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 1.05rem;
  padding: 0.85rem 0;
  outline: none;
  border-radius: 0;
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

/* Enfoque Consola Terminal en Campos */
.editorial-form input:focus, 
.editorial-form textarea:focus {
  border-color: var(--red);
  background-color: rgba(255, 0, 0, 0.01);
}

.form-group:focus-within label {
  color: var(--red);
}

.editorial-form textarea {
  min-height: 7rem;
  resize: vertical;
}

/* CORRECCIÓN DE INTERACCIÓN Y HOVER EN EL MENÚ DESPLEGABLE (SELECT) */
.editorial-form select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  color-scheme: dark;
  /* Icono de flecha minimalista incrustado en SVG para evitar estilos nativos raros del OS */
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='square'><polyline points='6 9 12 15 18 9'></polyline></svg>");
  background-repeat: no-repeat;
  background-position: right 5px center;
  background-size: 14px;
  padding-right: 2.5rem;
}

.editorial-form select:hover,
.editorial-form select:focus {
  border-color: var(--red);
  background-color: rgba(0, 0, 0, 0);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23ff0000' stroke-width='2' stroke-linecap='square'><polyline points='6 9 12 15 18 9'></polyline></svg>");
}

/* Forzar fondo oscuro y texto claro en las opciones de la lista desplegada */
.editorial-form select option {
  background-color: var(--surface); /* #0a0a0a */
  color: var(--text);               /* #ffffff */
  padding: 1rem;
}

/* Elimina el resaltado azul genérico al enfocar opciones en Webkit/Blink */
.editorial-form select:focus option:checked {
  background-color: var(--red) !important;
  color: var(--text) !important;
}

.form-actions {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
}

/* AUTOR */
.author-section {
  background: var(--bg);
}

.author-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.author-info h2 {
  font-size: clamp(2rem, 4.5vw, 4rem);
  margin-bottom: 2rem;
}

.author-bio {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--muted);
}

.qr-editorial-card {
  display: flex;
  gap: 2rem;
  padding: 2.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  align-items: center;
}

.qr-frame {
  background: #ffffff;
  padding: 0.5rem;
  display: inline-grid;
  place-items: center;
  width: 130px;
  height: 130px;
  flex-shrink: 0;
}

.qr-frame img {
  width: 100%;
  height: 100%;
}

.qr-details h3 {
  font-size: 1.1rem;
  font-weight: 900;
  margin: 0 0 0.5rem 0;
}

.qr-details p {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--muted);
  margin: 0 0 1.2rem 0;
}

.qr-editorial-link {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--red);
  text-decoration: none;
}

/* FLOTANTES */
.floating-instagram {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 999px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  transition: transform 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.floating-instagram:hover {
  border-color: var(--red);
  transform: scale(1.05);
}

.floating-instagram svg {
  width: 1.2rem;
  height: 1.2rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.site-footer {
  padding: 4rem clamp(1.5rem, 5vw, 5rem);
  background: var(--bg);
  border-top: 1px solid var(--line);
}

.footer-content {
  max-width: 1200px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.footer-content p {
  margin: 0.5rem 0;
}

/* CORRECCIÓN DE LEGIBILIDAD ENLACE AL BLOG */
.blog-anchor-wrapper {
  display: block;
  text-decoration: none !important;
  color: inherit !important;
}

.blog-headline {
  color: var(--text);
  transition: color 0.25s ease;
}

.blog-description {
  color: var(--muted);
}

.blog-arrow {
  color: var(--red);
  font-family: monospace;
  transition: transform 0.25s ease;
  display: inline-block;
}

.blog-anchor-wrapper:hover .blog-headline {
  color: var(--red);
}

.blog-anchor-wrapper:hover .blog-arrow {
  transform: translateX(6px);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .site-header {
    padding: 1.5rem;
    background: var(--bg);
  }

  .menu-toggle {
    display: block;
  }

  .main-nav, .header-cta {
    display: none;
  }

  .site-header.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg);
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--line);
  }
/* CORRECCIÓN: Evita que los números del método colisionen con el texto */
  .typo-row {
    grid-template-columns: 1fr !important; /* Pasa a una sola columna en pantallas medianas */
    gap: 1.5rem !important;
    padding: 2.5rem 0 !important;
  }

  .typo-row .num {
    transform: translateX(0) !important; /* Desactiva el desplazamiento lateral para evitar que se salga de los márgenes */
    line-height: 1;
    margin-bottom: 0.5rem;
  }
  /* CONSERVA LO QUE YA TENÍAS E INSERTA ESTO DENTRO DEL @media (max-width: 1024px) */

.section.split {
  display: flex !important;
  flex-direction: column !important;
  gap: 3rem !important;
  height: auto !important;
}

/* El elemento clave: al quitarle el 'sticky' deja de flotar y respeta el espacio del texto */
.section.split .sticky-text {
  position: relative !important; 
  top: auto !important;
  height: auto !important;
  max-width: 100% !important;
  padding-right: 0 !important;
}

.editorial-stack {
  display: flex !important;
  flex-direction: column !important;
  gap: 2.5rem !important;
  height: auto !important;
}

.editorial-block {
  height: auto !important;
}
/* NUEVA CONFIGURACIÓN RESPONSIVE PARA SECCIONES Y GALERÍA */
  .split, .author-layout {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  /* Cambia el flujo a flex columna invertida: coloca el texto arriba e imagen abajo */
  .gallery-item, .gallery-item.reverse {
    display: flex;
    flex-direction: column-reverse; 
    gap: 2rem; /* Espaciado interno perfecto entre el texto y su imagen */
  }

  /* Limpieza absoluta de las coordenadas de escritorio para evitar superposiciones */
  .gallery-item.reverse .gallery-media,
  .gallery-item.reverse .gallery-meta {
    grid-column: auto !important;
    grid-row: auto !important;
  }

  /* Separación protectora entre los bloques globales de la galería para que no se unan */
  .gallery-showcase {
    gap: 6rem;
  }

  .entry-editorial-row {
    grid-template-columns: auto 1fr;
  }
  
  .entry-editorial-row p {
    grid-column: span 2;
    margin-top: 0.5rem;
  }
}

@media (max-width: 720px) {
  .editorial-form {
    grid-template-columns: 1fr;
  }

  .form-group.span-2, .form-actions.span-2 {
    grid-column: auto;
  }

  .form-actions {
    flex-direction: column;
  }

  .typo-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .entry-editorial-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .entry-editorial-row p {
    grid-column: auto;
  }

  .qr-editorial-card {
    flex-direction: column;
    text-align: center;
  }
}
/* DROPDOWN PERSONALIZADO (ELIMINA EL COMPORTAMIENTO NATIVO) */
.custom-dropdown {
  position: relative;
  width: 100%;
}

.dropdown-trigger {
  width: 100%;
  border-bottom: 2px solid var(--line);
  background: transparent;
  color: var(--text);
  font-size: 1.05rem;
  padding: 0.85rem 0;
  cursor: pointer;
  position: relative;
  text-transform: uppercase;
  font-weight: 700;
  user-select: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='square'><polyline points='6 9 12 15 18 9'></polyline></svg>");
  background-repeat: no-repeat;
  background-position: right 5px center;
  background-size: 14px;
  padding-right: 2.5rem;
  transition: border-color 0.3s ease;
}

.custom-dropdown.is-open .dropdown-trigger {
  border-color: var(--red);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23ff0000' stroke-width='2' stroke-linecap='square'><polyline points='18 15 12 9 6 15'></polyline></svg>");
}

.dropdown-options {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  z-index: 150;
  display: none;
  max-height: 280px;
  overflow-y: auto;
}

.custom-dropdown.is-open .dropdown-options {
  display: block;
}

.dropdown-option {
  padding: 1rem;
  font-size: 0.95rem;
  color: var(--text);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* EL CÓDIGO CLAVE: Aquí personalizas el hover exacto sin interferencias del sistema */
.dropdown-option:hover {
  background-color: var(--red) !important;
  color: #ffffff !important;
}

.dropdown-option.is-selected {
  background-color: #151515;
  color: var(--red);
  font-weight: 700;
}