/* JetBrains Mono autoalojada (sin peticiones a terceros) */
@font-face {
  font-family: 'JetBrains Mono';
  src: url('jetbrains-mono-latin-400-normal.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('jetbrains-mono-latin-500-normal.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* =====================
   FUENTES LOCALES
   ===================== */
@font-face {
  font-family: 'Room';
  src: url('room-bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* =====================
   VARIABLES DE MARCA
   ===================== */
:root {
  --color-primary:     #1202f8;
  --color-secondary:   #7f18b3;
  --color-primary-dim: #1202f815;
  --color-sec-dim:     #7f18b315;
  --color-accent-blue: #8890ff;
  --color-accent-purp: #c070e0;
  --color-teal:        #1d9e75;
  --color-teal-dim:    #1d9e7520;

  --bg-base:    #0a0a0f;
  --bg-surface: #0f0f1a;
  --bg-card:    #111120;
  --bg-nav:     #0d0d15;

  --border-color:       #1a1a2e;
  --border-color-glow:  #1202f840;
  --border-color-hover: #1202f880;

  --text-primary:   #f0f0fa;
  --text-secondary: #9090aa;
  --text-muted:     #555566;
  --text-white:     #ffffff;

  --font-display: 'Room', sans-serif;
  --font-nav:     'Room', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --font-body:    'Room', sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  --transition: 0.2s ease;
  --max-width: 1100px;
}

/* =====================
   RESET Y BASE
   ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

/* =====================
   LAYOUT
   ===================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* =====================
   NAVBAR
   ===================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 13, 21, 0.6);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-logo-icon svg {
  width: 18px;
  height: 18px;
  fill: white;
}

.nav-logo-img {
  height: 32px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  font-family: var(--font-nav);
  color: var(--text-secondary);
  font-weight: 400;
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-white);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 1px;
  background: var(--color-secondary);
}





.nav-mobile-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 22px;
  line-height: 1;
}

/* =====================
   HERO
   ===================== */
.hero {
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 15% 60%, #1202f81a 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 85% 20%, #7f18b312 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary-dim);
  border: 1px solid var(--border-color-glow);
  color: var(--color-accent-blue);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 14px;
  border-radius: var(--radius-xl);
  margin-bottom: 1.5rem;
}

.hero-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 400;
  line-height: 1.1;
  color: var(--text-white);
  margin-bottom: 1.25rem;
  letter-spacing: 1px;
}

.hero-title .gradient-text {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 460px;
}

.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--text-white);
  padding: 11px 24px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  border: none;
  transition: opacity var(--transition), transform var(--transition);
}

.btn-primary:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  padding: 11px 24px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 400;
  border: 1px solid var(--border-color);
  transition: border-color var(--transition), color var(--transition);
}

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



/* Hero visual side */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-terminal {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.terminal-bar {
  background: var(--bg-card);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot.red   { background: #ff5f57; }
.terminal-dot.amber { background: #ffbd2e; }
.terminal-dot.green { background: #28ca41; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 6px;
}

.terminal-body {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2;
}

.t-prompt { color: var(--color-secondary); }
.t-cmd    { color: var(--color-accent-blue); }
.t-out    { color: var(--text-secondary); }
.t-ok     { color: var(--color-teal); }
.t-warn   { color: #ef9f27; }
.t-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--color-primary);
  vertical-align: middle;
  animation: blink 1.2s step-end infinite;
}

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

/* =====================
   SECCIONES GENERALES
   ===================== */
.section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 2rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 2px;
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

/* =====================
   CATEGORÍAS
   ===================== */
.cats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.cat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-decoration: none;
  transition: border-color var(--transition), transform var(--transition);
  display: block;
}

.cat-card:hover {
  border-color: var(--border-color-hover);
  transform: translateY(-2px);
}

.cat-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.85rem;
  font-size: 18px;
}

.cat-icon.blue   { background: var(--color-primary-dim); }
.cat-icon.purple { background: var(--color-sec-dim); }
.cat-icon.teal   { background: var(--color-teal-dim); }

.cat-name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 400;
  color: var(--text-white);
  margin-bottom: 4px;
}

.cat-desc {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* =====================
   GUÍAS
   ===================== */
.guides-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.guide-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-decoration: none;
  transition: border-color var(--transition);
}

.guide-item:hover {
  border-color: var(--border-color-hover);
}

.guide-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.guide-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.guide-dot.blue   { background: var(--color-primary); }
.guide-dot.purple { background: var(--color-secondary); }
.guide-dot.teal   { background: var(--color-teal); }

.guide-title {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 400;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}

.guide-item:hover .guide-title {
  color: var(--text-primary);
}

.guide-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 4px;
}

.tag.blue   { background: var(--color-primary-dim); color: var(--color-accent-blue); }
.tag.purple { background: var(--color-sec-dim);     color: var(--color-accent-purp); }
.tag.teal   { background: var(--color-teal-dim);    color: var(--color-teal); }

.guide-arrow {
  color: var(--text-muted);
  font-size: 16px;
  transition: color var(--transition), transform var(--transition);
}

.guide-item:hover .guide-arrow {
  color: var(--color-primary);
  transform: translateX(3px);
}

/* =====================
   BANNER YOUTUBE
   ===================== */
.yt-banner {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.yt-banner-info { flex: 1; }

.yt-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.yt-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text-white);
  margin-bottom: 6px;
}

.yt-sub {
  font-size: 13px;
  color: var(--text-muted);
}

.btn-yt {
  background: var(--color-primary);
  color: var(--text-white);
  padding: 11px 22px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  border: none;
  white-space: nowrap;
  transition: opacity var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-yt:hover { opacity: 0.85; }

/* =====================
   FOOTER
   ===================== */
.footer {
  padding: 2rem 0;
  background: rgba(8, 8, 16, 0.6);
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 12px;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--text-secondary); }

/* =====================
   RESPONSIVE
   ===================== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .hero-title { font-size: 2.2rem; }
  .cats-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .nav-mobile-btn { display: block; }
}

@media (max-width: 600px) {
  .container { padding: 0 1.25rem; }
  .hero { padding: 3rem 0 2.5rem; }
  .hero-title { font-size: 1.8rem; }
  .cats-grid { grid-template-columns: 1fr; }
  .yt-banner { flex-direction: column; align-items: flex-start; }
  .newsletter-form { flex-direction: column; }
  .hero-stats { gap: 1.25rem; }
  .footer .container { flex-direction: column; align-items: flex-start; gap: 1rem; }
}

/* =====================
   PÁGINA DE GUÍA
   ===================== */
.guide-page { display: flex; gap: 3rem; align-items: flex-start; padding: 3rem 0; }

.guide-content { flex: 1; min-width: 0; }

.guide-content h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  color: var(--text-white);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.guide-content h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--text-white);
  margin: 2rem 0 0.75rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.guide-content p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.guide-content pre {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.25rem 0;
}

.guide-content code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent-blue);
}

.guide-content p code {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 12px;
}

.guide-content ul, .guide-content ol {
  margin: 0.75rem 0 1rem 1.25rem;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

.guide-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.guide-breadcrumb {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.guide-breadcrumb a { color: var(--color-secondary); }
.guide-breadcrumb a:hover { color: var(--color-accent-purp); }

.guide-sidebar {
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top: 80px;
}

.sidebar-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.sidebar-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 1rem;
}

.sidebar-toc a {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: 10px;
  transition: color var(--transition), border-color var(--transition);
}

.sidebar-toc a:hover {
  color: var(--text-primary);
  border-left-color: var(--color-primary);
}

/* =====================
   ANIMACIONES DE ENTRADA
   ===================== */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  animation: fadeIn 0.5s ease forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.05s; }
.fade-in:nth-child(2) { animation-delay: 0.1s; }
.fade-in:nth-child(3) { animation-delay: 0.15s; }
.fade-in:nth-child(4) { animation-delay: 0.2s; }
.fade-in:nth-child(5) { animation-delay: 0.25s; }
.fade-in:nth-child(6) { animation-delay: 0.3s; }

@keyframes fadeIn {
  to { opacity: 1; transform: translateY(0); }
}


/* =====================
   R3V3LA — CAPÍTULOS
   Medidas de tarjeta: 268 × 414 px, hueco de 16 px, rejilla de 1120 px.
   ===================== */
.container-rv { max-width: calc(1120px + 4rem); }

.rv-counter {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.rv-logo { margin: 0 0 1rem; line-height: 0; }
.rv-logo img { height: 72px; width: auto; }

.rv-lead {
  max-width: 560px;
  margin-bottom: 1.5rem;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.rv-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.rv-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.rv-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-self: start;
  aspect-ratio: 268 / 414;
  background-color: var(--bg-surface);
  background-image: repeating-linear-gradient(135deg, #ffffff05 0, #ffffff05 2px, transparent 2px, transparent 7px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}
a.rv-card:hover { border-color: var(--border-color-hover); }
a.rv-card:focus-visible { outline: 2px solid var(--color-accent-blue); outline-offset: 3px; }

.rv-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  padding: 7px 9px;
  background: var(--bg-base);
  border: 1px solid var(--border-color-glow);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 2px;
  line-height: 1.4;
  color: var(--color-accent-blue);
}

.rv-lock {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 1;
}

.rv-art {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: radial-gradient(circle at 50% 50%, #1202f826, transparent 62%);
}
.rv-glyph { width: 122px; height: 122px; display: block; }

.rv-body {
  flex: none;
  height: 80px;
  padding: 0 18px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}
.rv-title {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.15;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.rv-cat {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--color-accent-purp);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Sin revelar */
.rv-card--locked { background-color: #0c0c15; }
.rv-card--locked .rv-tag { color: var(--text-muted); border-color: var(--border-color); }
.rv-card--locked .rv-art { background-image: none; }
.rv-card--locked .rv-glyph { filter: blur(6px) grayscale(1); opacity: 0.5; }
.rv-card--locked .rv-body { background: #0c0c15; }
.rv-card--locked .rv-title { color: var(--text-secondary); }
.rv-card--locked .rv-cat { color: var(--text-muted); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .rv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rv-card { aspect-ratio: auto; height: 414px; }
}

@media (max-width: 600px) {
  .rv-logo img { height: 52px; }
  .rv-grid { grid-template-columns: 1fr; gap: 12px; }
  .rv-card {
    height: 112px;
    display: grid;
    grid-template-columns: 84px minmax(0, 1fr);
    grid-template-areas: 'art tag' 'art body';
    align-content: center;
    column-gap: 16px;
    row-gap: 4px;
    padding: 0 44px 0 14px;
  }
  .rv-tag { grid-area: tag; position: static; padding: 0; border: 0; background: none; align-self: end; }
  .rv-art { grid-area: art; width: 84px; height: 84px; flex: none; }
  .rv-glyph { width: 72px; height: 72px; }
  .rv-body { grid-area: body; height: auto; padding: 0; border: 0; background: none; align-self: start; }
  .rv-card--locked .rv-body { background: none; }
  .rv-lock { top: 50%; right: 16px; transform: translateY(-50%); }
  .rv-card--locked .rv-glyph { filter: blur(4px) grayscale(1); }
}

/* =====================
   R3V3LA — PÁGINA DE CAPÍTULO
   ===================== */
.guide-content h2[id] { scroll-margin-top: 84px; }

.rv-summary {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.rv-summary-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
}
.guide-content .rv-summary p { margin-bottom: 0; font-size: 16px; color: var(--text-primary); }

.rv-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 1.25rem 0;
}
.rv-fact {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
}
.rv-fact-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.rv-fact-value { margin-top: 4px; font-size: 14px; color: var(--text-primary); }

.rv-evidence {
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1.25rem 0;
  padding: 1rem;
  border: 1px dashed var(--border-color-glow);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

.sidebar-toc a.is-current { color: var(--color-accent-blue); }

@media (max-width: 900px) {
  .rv-facts { grid-template-columns: 1fr; }
}


/* Los efectos de fondo se movieron a .bg-glow y .bg-logo (ver bloque INTERACTIVO) */

/* Nombre junto al logo en la barra */
.nav-logo-text {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 1px;
  line-height: 1;
  color: var(--text-white);
  white-space: nowrap;
}
.nav-logo-text span {
  background: linear-gradient(90deg, var(--color-accent-blue), var(--color-accent-purp));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (max-width: 380px) {
  .nav-logo-text { font-size: 15px; }
}


/* =====================
   BLOQUE INTERACTIVO
   Fondo con parallax + escaneo, cursor halo, tarjetas 3D,
   materialización al scroll y HUD.
   ===================== */

.bg-glow,
.bg-logo {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  will-change: transform;
}

.bg-glow {
  background:
    radial-gradient(ellipse 42% 55% at 0% 0%, rgba(18, 2, 248, 0.32), transparent 100%),
    radial-gradient(ellipse 34% 55% at 100% 100%, rgba(127, 24, 179, 0.22), transparent 100%);
  transform: translate3d(calc(var(--mx, 0) * -6px), calc(var(--my, 0) * -6px), 0);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.bg-logo {
  overflow: hidden;
  transform: translate3d(calc(var(--mx, 0) * 12px), calc(var(--my, 0) * 12px), 0);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.bg-logo__img,
.bg-logo__scan {
  position: absolute;
  top: 50%;
  right: -6vw;
  width: min(87vh, 720px);
  height: min(92vh, 980px);
  transform: translateY(-50%);
  background: url('../img/logos/logo-fondo.webp') center / contain no-repeat;
}
.bg-logo__img { opacity: 0.38; }

.bg-logo__scan {
  -webkit-mask: url('../img/logos/logo-fondo.webp') center / contain no-repeat;
          mask: url('../img/logos/logo-fondo.webp') center / contain no-repeat;
  background: linear-gradient(
    100deg,
    transparent 42%,
    rgba(180, 190, 255, 0.55) 48%,
    rgba(210, 160, 240, 0.55) 52%,
    transparent 58%
  );
  background-size: 220% 220%;
  background-position: 220% 220%;
  mix-blend-mode: screen;
  animation: bg-scan 9s cubic-bezier(0.5, 0.1, 0.5, 1) infinite;
}
@keyframes bg-scan {
  0%   { background-position: 220% 220%; opacity: 0; }
  10%  { opacity: 0.9; }
  55%  { opacity: 0.9; }
  70%  { background-position: -120% -120%; opacity: 0; }
  100% { background-position: -120% -120%; opacity: 0; }
}

@media (max-width: 900px) {
  .bg-logo__img,
  .bg-logo__scan { right: -28vw; width: 70vh; height: 70vh; }
  .bg-logo__img  { opacity: 0.22; }
  .bg-logo__scan { display: none; }
}

/* --- Cursor halo (solo puntero fino) --- */
.cursor-halo {
  position: fixed;
  top: 0; left: 0;
  width: 340px; height: 340px;
  z-index: 999;
  pointer-events: none;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(140, 155, 255, 0.16) 0%,
    rgba(198, 140, 240, 0.09) 40%,
    transparent 70%
  );
  transform: translate3d(-9999px, -9999px, 0);
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity 0.3s ease;
  will-change: transform;
}
.cursor-halo.is-active { opacity: 1; }

@media (hover: none), (pointer: coarse) {
  .cursor-halo { display: none; }
}

/* --- HUD --- */
.hud-crosshair {
  position: fixed;
  bottom: 22px;
  left: 22px;
  width: 52px; height: 52px;
  z-index: 1;
  pointer-events: none;
  opacity: 0.35;
  animation: hud-drift 12s ease-in-out infinite;
}
@keyframes hud-drift {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(3px, -2px); }
}

.hud-status {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1;
  pointer-events: none;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  opacity: 0.6;
  display: flex;
  gap: 12px;
  align-items: center;
}
.hud-status .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #34c771;
  box-shadow: 0 0 8px #34c771;
  animation: hud-pulse 2s ease infinite;
}
@keyframes hud-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

@media (max-width: 720px) {
  .hud-crosshair, .hud-status { display: none; }
}

/* --- Tarjetas: tilt 3D + brillo que sigue al cursor --- */
.rv-grid { perspective: 1400px; }

.rv-card {
  transform-style: preserve-3d;
  transform:
    rotateX(calc(var(--tilt-y, 0) * 4deg))
    rotateY(calc(var(--tilt-x, 0) * -4deg));
  transition:
    transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
    border-color var(--transition);
}

/* Brillo puntual siguiendo al ratón */
.rv-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  z-index: 2;
  background: radial-gradient(
    circle 220px at calc(var(--shine-x, 50%) * 1px) calc(var(--shine-y, 50%) * 1px),
    rgba(140, 155, 255, 0.16),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}
a.rv-card:hover::before { opacity: 1; }

/* Contorno en hover: shimmer diagonal */
.rv-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--color-accent-blue) 25%,
    var(--color-accent-purp) 50%,
    transparent 75%
  );
  background-size: 300% 100%;
  background-position: 100% 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.3s ease;
}
a.rv-card:hover::after {
  opacity: 1;
  animation: edge-shimmer 2.4s linear infinite;
}
@keyframes edge-shimmer {
  0%   { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

/* Glifo: respiración lenta en reposo, giro suave en hover */
.rv-art { position: relative; overflow: hidden; }
.rv-glyph {
  transform-origin: center;
  animation: glyph-breath 4s ease-in-out infinite;
}
a.rv-card:hover .rv-glyph {
  animation: glyph-spin 12s linear infinite;
}
.rv-card--locked .rv-glyph { animation: none; }

@keyframes glyph-breath {
  0%, 100% { transform: scale(1);    opacity: 1; }
  50%      { transform: scale(1.06); opacity: 0.9; }
}
@keyframes glyph-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Materialización al aparecer en el viewport */
.rv-card.rv-anim-in {
  opacity: 0;
  filter: blur(6px);
  transform: translateY(24px);
  transition:
    opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    filter  0.9s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.rv-card.rv-anim-in.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

/* Título en scramble: cuadrarlo para que no baile la caja */
.rv-title { font-variant-numeric: tabular-nums; }

/* Respeto de preferencias de movimiento */
@media (prefers-reduced-motion: reduce) {
  .bg-glow, .bg-logo, .rv-card { transform: none !important; transition: none !important; }
  .bg-logo__scan, .rv-glyph, .rv-card::after, .hud-crosshair, .hud-status .dot { animation: none !important; }
  .rv-card.rv-anim-in { opacity: 1; filter: none; transform: none; transition: none; }
  .cursor-halo { display: none; }
}