/* ============================================================
   HdD — Hora de Despertar
   Sistema visual: minimalismo editorial, LED rojo, prensa digital
   ============================================================ */

/* --- Fuente display LED de 7 segmentos para el logo --- */
@font-face {
  font-family: "DSEG7 Classic";
  src: url("https://cdn.jsdelivr.net/gh/keshikan/DSEG@v0.46/fonts/DSEG7-Classic/DSEG7Classic-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* --- Google Fonts: Fraunces (serif editorial) + Inter (sans moderno) --- */
@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,600;9..144,800&family=Inter:wght@300;400;500;600;700&display=swap");

/* --- Tokens --- */
:root {
  --bg:           #0a0a0a;
  --bg-soft:      #121212;
  --bg-elev:      #1a1a1a;
  --ink:          #f3ece2;
  --ink-dim:      #a39a8c;
  --ink-mute:     #6b6458;
  --line:         rgba(243, 236, 226, 0.08);
  --line-strong:  rgba(243, 236, 226, 0.18);
  --red:          #e10600;
  --red-glow:     rgba(225, 6, 0, 0.55);
  --accent:       #f5c36b;
  --max:          1240px;
  --gutter:       clamp(20px, 4vw, 48px);
  --radius:       2px;
  --serif:        "Fraunces", Georgia, serif;
  --sans:         "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --led:          "DSEG7 Classic", "Courier New", monospace;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

html { scroll-behavior: smooth; }

/* Bloquear scroll cuando el menú móvil está abierto */
body.nav-open { overflow: hidden; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Textura sutil: grano para añadir profundidad táctil */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  z-index: 1;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
  z-index: 2;
}

/* --- Focus visible accesible --- */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* --- Tipografía --- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.4rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); }

p { margin: 0 0 1em; }
.lead {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.1rem, 1.7vw, 1.4rem);
  color: var(--ink-dim);
  line-height: 1.5;
}
.eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--red);
}

/* --- Logo LED --- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-led {
  font-family: var(--led);
  font-weight: 700;
  color: var(--red);
  text-shadow:
    0 0 6px var(--red-glow),
    0 0 14px rgba(225, 6, 0, 0.35);
  letter-spacing: 0.02em;
  position: relative;
  display: inline-block;
}
.logo-led::before {
  content: "88~88";
  position: absolute;
  inset: 0;
  color: rgba(225, 6, 0, 0.08);
  text-shadow: none;
  pointer-events: none;
  letter-spacing: 0.02em;
}
.logo-sm .logo-led { font-size: 1.4rem; }
.logo-md .logo-led { font-size: 2.2rem; }
.logo-lg .logo-led { font-size: clamp(4rem, 11vw, 9rem); }
.logo-xl .logo-led { font-size: clamp(6rem, 18vw, 14rem); }

/* --- Header / Nav --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.82);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand-unit {
  display: flex;
  align-items: center;
  gap: 14px;
}
.header-clock {
  font-family: var(--led);
  font-size: 1rem;
  color: var(--red);
  letter-spacing: 0.04em;
  text-shadow: 0 0 4px var(--red-glow);
  padding-left: 14px;
  border-left: 1px solid var(--line-strong);
  line-height: 1;
}
@media (max-width: 560px) {
  .header-clock { display: none; }
}

.nav {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  transition: color 0.2s ease;
  position: relative;
}
.nav a:hover,
.nav a.active { color: var(--ink); }
.nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -8px;
  height: 1px;
  background: var(--red);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink);
  cursor: pointer;
  padding: 8px 12px;
  font-size: 1rem;
  line-height: 1;
  transition: border-color 0.2s ease;
}
.nav-toggle:hover { border-color: var(--red); }

/* --- Hero --- */
.hero {
  padding: clamp(60px, 12vw, 160px) 0 clamp(60px, 10vw, 120px);
  position: relative;
  overflow: hidden;
}

.hero-frame {
  text-align: center;
  display: grid;
  justify-items: center;
  gap: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(40px, 8vw, 70px);
}
.hero-top-label {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding-left: 0.5em;
}
.hero-clock-huge {
  line-height: 1;
  position: relative;
}
.hero-clock-huge .logo-led {
  display: inline-block;
  font-size: clamp(5rem, 17vw, 13rem);
  animation: pulse 3.6s ease-in-out infinite;
}
.hero-bottom-label {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
  max-width: 16ch;
}

/* Conservado para compatibilidad con vistas que lo usen */
.hero-clock {
  text-align: center;
  margin-bottom: clamp(40px, 8vw, 80px);
  position: relative;
}
.hero-clock .logo-led {
  display: inline-block;
  animation: pulse 3.6s ease-in-out infinite;
}
.hero-clock .time-label {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 18px;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.72; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-clock-huge .logo-led,
  .hero-clock .logo-led { animation: none; }
  html { scroll-behavior: auto; }
}

.hero-headline {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}
.hero-sub {
  max-width: 640px;
  margin: 0 auto;
  font-size: 1.05rem;
  color: var(--ink-dim);
  text-align: center;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 36px;
}

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  transition: all 0.2s ease;
  background: transparent;
  color: var(--ink);
}
.btn:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--red);
  border-color: var(--red);
  color: white;
}
.btn-primary:hover {
  background: #ff1a14;
  border-color: #ff1a14;
  box-shadow: 0 10px 30px rgba(225, 6, 0, 0.35);
}
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* --- Sección genérica --- */
section.block {
  padding: clamp(60px, 10vw, 120px) 0;
  border-top: 1px solid var(--line);
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.section-head h2 { margin: 8px 0 0; max-width: 680px; }
.section-head .link-more {
  color: var(--ink-dim);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.section-head .link-more:hover {
  color: var(--red);
  border-color: var(--red);
}

/* --- Lista tipo índice (noticias, semanal) --- */
.index-list { display: grid; gap: 0; }
.index-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 32px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
  transition: all 0.2s ease;
}
.index-item:last-child { border-bottom: 1px solid var(--line); }
.index-item:hover { padding-left: 8px; }
.index-item:hover h3 { color: var(--red); }
.index-item .date {
  font-family: var(--led);
  font-size: 0.85rem;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
}
.index-item h3 {
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  margin: 0;
  transition: color 0.2s ease;
}
.index-item .summary {
  grid-column: 2;
  color: var(--ink-dim);
  font-size: 0.95rem;
  margin-top: 6px;
}
.index-item .cat {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
}
@media (max-width: 720px) {
  .index-item { grid-template-columns: 1fr; gap: 10px; }
  .index-item .summary { grid-column: 1; }
}

/* --- Largo formato (manifiesto, artículos) --- */
.longform {
  max-width: 740px;
  margin: 0 auto;
}
.longform h1 { margin-bottom: 0.3em; }
.longform .lead { margin-bottom: 2em; }
.longform p {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--ink);
}
.longform h2 {
  margin-top: 2.4em;
  padding-top: 1.4em;
  border-top: 1px solid var(--line);
}
.longform blockquote {
  border-left: 2px solid var(--red);
  padding: 4px 0 4px 24px;
  margin: 2em 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--ink-dim);
}
.longform ol, .longform ul {
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--ink);
  padding-left: 1.2em;
}
.longform li { margin-bottom: 0.6em; }
.longform li::marker { color: var(--red); }

/* --- Artículo: cabecera y cuerpo --- */
.article-header {
  padding: clamp(80px, 10vw, 140px) 0 40px;
  border-bottom: 1px solid var(--line);
}
.article-header .eyebrow { margin-bottom: 16px; }
.article-header h1 {
  max-width: 900px;
  margin-bottom: 24px;
}
.article-header .lead { max-width: 740px; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 32px;
  font-size: 0.82rem;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.article-meta strong { color: var(--ink); font-weight: 500; }

.article-body { padding: 60px 0; }
.article-body .longform { font-size: 1.05rem; }

/* --- Caja didáctica (concepto técnico, nota metodológica) --- */
.didactic-box {
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--red);
  padding: 28px 32px;
  margin: 40px 0;
  background: var(--bg-soft);
}
.didactic-box .eyebrow {
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}
.didactic-box h4 {
  font-family: var(--serif);
  font-size: 1.3rem;
  margin: 0 0 12px;
  color: var(--ink);
}
.didactic-box p {
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink-dim);
  margin: 0;
}

/* --- Navegación pedagógica por capas --- */
.layer-nav {
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--accent);
  background: var(--bg-soft);
  padding: 24px 28px;
  margin: 36px 0;
  border-radius: var(--radius);
}
.layer-nav__label {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 10px;
}
.layer-nav__intro {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink-dim);
  margin: 0 0 16px;
}
.layer-nav__options {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.layer-nav__jump {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-size: 0.92rem;
  color: var(--ink-dim);
  padding: 8px 10px;
  border-radius: var(--radius);
  transition: background 0.15s ease, color 0.15s ease;
}
.layer-nav__jump:hover {
  background: rgba(245, 195, 107, 0.07);
  color: var(--ink);
}
.layer-nav__arrow {
  font-size: 0.8rem;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.15s ease;
}
.layer-nav__jump:hover .layer-nav__arrow {
  transform: translateX(3px);
}

/* Variante inline: menos padding, sin margen grande */
.layer-nav--inline {
  padding: 16px 20px;
  margin: 24px 0;
}

/* --- Estado vacío (sección sin publicaciones) --- */
.empty-state {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(40px, 6vw, 72px);
  text-align: center;
  background: rgba(255, 255, 255, 0.015);
}
.empty-state .icon {
  font-family: var(--led);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  color: rgba(225, 6, 0, 0.25);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 16px;
}
.empty-state h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  margin: 0 0 10px;
}
.empty-state p {
  color: var(--ink-dim);
  font-size: 0.98rem;
  margin: 0 auto;
  max-width: 560px;
}

/* --- Nota semanal --- */
.weekly-note {
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(48px, 7vw, 80px);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.weekly-note::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
  opacity: 0.6;
}
.weekly-note .day {
  font-family: var(--led);
  color: var(--red);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-shadow: 0 0 6px var(--red-glow);
  margin-bottom: 18px;
  display: block;
}
.weekly-note h2 {
  max-width: 18ch;
  margin: 0 auto 22px;
}
.weekly-note p {
  color: var(--ink-dim);
  max-width: 620px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* --- Grid de tarjetas (disponible para uso futuro) --- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(24px, 3vw, 40px);
}
.news-grid .card { grid-column: span 4; }
.news-grid .card.featured { grid-column: span 8; grid-row: span 2; }
.news-grid .card.wide { grid-column: span 8; }
@media (max-width: 900px) {
  .news-grid .card,
  .news-grid .card.featured,
  .news-grid .card.wide { grid-column: span 12; }
}

.card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  transition: all 0.2s ease;
}
.card:hover { border-top-color: var(--red); }
.card .meta {
  display: flex;
  gap: 14px;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.card .meta .cat { color: var(--red); }
.card .meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-mute); }
.card h3 { font-size: clamp(1.2rem, 1.7vw, 1.6rem); line-height: 1.15; margin: 0; }
.card.featured h3 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
.card p { color: var(--ink-dim); font-size: 0.95rem; margin: 0; }
.card .read {
  margin-top: auto;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  transition: color 0.2s ease;
}
.card:hover .read { color: var(--red); }

/* --- Pilares editoriales --- */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}
.pillar .num {
  font-family: var(--led);
  color: var(--red);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 18px;
}
.pillar h3 { font-size: 1.3rem; margin-bottom: 12px; }
.pillar p { color: var(--ink-dim); font-size: 0.95rem; }

/* --- Educación: tarjetas de rutas (disponible para uso futuro) --- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.edu-card {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  transition: all 0.25s ease;
}
.edu-card:hover { border-color: var(--red); transform: translateY(-3px); }
.edu-card .num {
  font-family: var(--led);
  font-size: 2rem;
  color: var(--red);
  display: block;
  margin-bottom: 20px;
  text-shadow: 0 0 8px var(--red-glow);
}
.edu-card h3 { font-size: 1.3rem; }
.edu-card p { font-size: 0.95rem; color: var(--ink-dim); margin-bottom: 20px; }
.edu-card .read {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 600;
}

/* --- Footer --- */
.site-footer {
  margin-top: 80px;
  border-top: 1px solid var(--line);
  padding: 60px 0 40px;
  position: relative;
  z-index: 2;
}
.site-footer .top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
.site-footer h5 {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 18px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.site-footer ul a {
  color: var(--ink-dim);
  font-size: 0.92rem;
  transition: color 0.2s ease;
}
.site-footer ul a:hover { color: var(--ink); }
.site-footer .tagline {
  color: var(--ink-dim);
  font-size: 0.95rem;
  max-width: 360px;
  margin-top: 16px;
}
.site-footer .bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--ink-mute);
  letter-spacing: 0.08em;
}
@media (max-width: 820px) {
  .site-footer .top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .site-footer .top { grid-template-columns: 1fr; }
}

/* --- Breadcrumb / volver --- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding-top: 40px;
  transition: color 0.2s ease;
}
.back-link:hover { color: var(--red); }

/* --- Nav móvil responsive --- */
@media (max-width: 820px) {
  .nav { display: none; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 24px var(--gutter);
    gap: 20px;
    border-bottom: 1px solid var(--line);
    z-index: 99;
  }
  .nav-toggle { display: block; }
}

/* ================================================================
   SISTEMA DE DIAPOSITIVAS
   ================================================================ */

/* Barra de modo de lectura */
.reading-mode-bar {
  position: sticky;
  top: 61px;
  z-index: 80;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.reading-mode-bar .bar--reading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px 0;
}
.reading-mode-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.reading-mode-btns {
  display: flex;
  gap: 6px;
}
.mode-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink-mute);
  cursor: pointer;
  transition: all 0.2s ease;
}
.mode-btn:hover:not(.is-active) {
  color: var(--ink);
  border-color: var(--ink-dim);
}
.mode-btn.is-active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

/* Contenedor principal de slides */
.slides-view {
  position: relative;
  height: calc(100dvh - 62px - 51px);
  overflow: hidden;
}

/* Barra de progreso superior */
.slide-progress-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--line);
  z-index: 10;
}
.slide-progress-fill {
  height: 100%;
  background: var(--red);
  transition: width 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  width: 25%;
}

/* Slide base */
.slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
  opacity: 0;
  transform: translateX(56px);
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.slide.is-active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: all;
}
.slide.is-exiting {
  opacity: 0;
  transform: translateX(-56px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.slide-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(40px, 5vw, 72px) var(--gutter) 100px;
  width: 100%;
}

/* Número de diapositiva */
.slide-num {
  font-family: var(--led);
  font-size: 0.65rem;
  color: rgba(225, 6, 0, 0.22);
  letter-spacing: 0.14em;
  display: block;
  margin-bottom: 24px;
}

/* Etiqueta de sección */
.slide-label {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.slide-label::before {
  content: "";
  width: 28px;
  height: 1px;
  flex-shrink: 0;
}

/* Slide 1: Portada */
.slide--cover { background: var(--bg); }
.slide--cover .slide-label { color: var(--red); }
.slide--cover .slide-label::before { background: var(--red); }
.slide--cover h1 {
  font-size: clamp(2rem, 5.5vw, 4rem);
  line-height: 1.04;
  margin-bottom: 24px;
  max-width: 20ch;
}
.slide--cover .lead {
  font-size: clamp(1rem, 1.7vw, 1.3rem);
  max-width: 580px;
  margin-bottom: 48px;
}
.slide-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--ink-mute);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.slide-meta-row strong { color: var(--ink-dim); font-weight: 500; }

/* Slide 2: Conceptos */
.slide--concepts { background: var(--bg); }
.slide--concepts .slide-label { color: var(--accent); }
.slide--concepts .slide-label::before { background: var(--accent); }
.slide--concepts h2 {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  margin-bottom: 32px;
}
.slide--concepts .didactic-box { margin: 0 0 18px; }

/* Slide 3: Desarrollo */
.slide--development { background: var(--bg); }
.slide--development .slide-label { color: var(--ink-mute); }
.slide--development .slide-label::before { background: var(--line-strong); }
.slide--development h2 {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  margin-bottom: 36px;
}

.slide-section {
  margin-bottom: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}
.slide-section:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.slide-section h3 {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 16px;
}
.slide-section p,
.slide-section ul {
  font-family: var(--serif);
  font-size: 1.1rem;
  line-height: 1.72;
  color: var(--ink);
  margin: 0;
}
.slide-section ul { padding-left: 1.2em; }
.slide-section li { margin-bottom: 0.6em; }
.slide-section li::marker { color: var(--red); }
.slide-section .actor-name {
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-dim);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 6px;
}

/* Slide 4: Análisis */
.slide--analysis { background: var(--bg-soft); }
.slide--analysis .slide-label { color: var(--accent); }
.slide--analysis .slide-label::before { background: var(--accent); }
.slide--analysis h2 {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  margin-bottom: 36px;
}
.slide--analysis blockquote {
  border-left: 2px solid var(--red);
  padding: 4px 0 4px 24px;
  margin: 28px 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ink-dim);
}
.slide--analysis ul {
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--ink);
  padding-left: 1.2em;
}
.slide--analysis li { margin-bottom: 0.75em; }
.slide--analysis li::marker { color: var(--red); }

/* Nav de diapositivas */
.slide-nav {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(18, 18, 18, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 10px 18px;
  z-index: 20;
  white-space: nowrap;
}
.slide-nav__btn {
  background: none;
  border: none;
  color: var(--ink-dim);
  font-size: 0.95rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius);
  line-height: 1;
  transition: color 0.15s ease;
}
.slide-nav__btn:hover:not(:disabled) { color: var(--ink); }
.slide-nav__btn:disabled { opacity: 0.2; cursor: default; }
.slide-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}
.slide-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--ink-mute);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.25s ease, width 0.25s ease;
  flex-shrink: 0;
}
.slide-dot.is-active {
  background: var(--red);
  width: 20px;
}
.slide-counter {
  font-family: var(--led);
  font-size: 0.72rem;
  color: var(--ink-mute);
  letter-spacing: 0.1em;
  padding-left: 10px;
  border-left: 1px solid var(--line-strong);
}

/* === MODO FLUJO (Texto completo) === */
.slides-view.mode-flow {
  height: auto;
  overflow: visible;
}
.slides-view.mode-flow .slide-progress-bar,
.slides-view.mode-flow .slide-nav { display: none; }
.slides-view.mode-flow .slide {
  position: relative;
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
  pointer-events: all;
  border-bottom: 1px solid var(--line);
  min-height: 0;
  justify-content: flex-start;
}
.slides-view.mode-flow .slide-num { display: none; }
.slides-view.mode-flow .slide--cover {
  padding-top: 0;
  min-height: 0;
}
.slides-view.mode-flow .slide-inner {
  padding-top: clamp(48px, 6vw, 80px);
  padding-bottom: clamp(48px, 6vw, 80px);
}
.slides-view.mode-flow .slide--analysis { background: var(--bg); }

@media (max-width: 600px) {
  .reading-mode-label { display: none; }
  .slides-view {
    height: calc(100dvh - 62px - 51px);
  }
  .slide-nav { bottom: 16px; gap: 10px; padding: 8px 14px; }
  .slide-counter { display: none; }
}