/* =====================================================================
   AIMUN 2026 — Hoja de estilos · «Sesión nocturna»
   Identidad: azul vacío + cian neón (el turquesa acuarela del emblema,
   encendido sobre oscuro) + dorado laurel.
   Tipografía: Marcellus (títulos, grabado diplomático) · Archivo (texto)
   · Space Grotesk (datos, etiquetas, números) · Source Serif 4 (cláusulas).
   Estructura de la página = una resolución de la ONU, en clave futurista.
   ===================================================================== */

:root {
  --void: #04091a;
  --abyss: #071026;
  --navy: #10214b;
  --panel: rgba(13, 24, 52, 0.72);
  --panel-solid: #0a142e;
  --cyan: #41c9e8;
  --cyan-deep: #1b86a8;
  --cyan-glow: rgba(65, 201, 232, 0.4);
  --cyan-dim: rgba(65, 201, 232, 0.12);
  --ice: #eef7fc;
  --text: #a7b9d4;
  --text-dim: #6e82a3;
  --line: rgba(103, 165, 199, 0.2);
  --line-soft: rgba(103, 165, 199, 0.12);
  --gold: #d3a84c;
  --gold-dim: rgba(211, 168, 76, 0.14);

  --font-display: "Archivo Black", "Archivo", "Segoe UI", sans-serif;
  --font-subtitle: "Commissioner", "Marcellus", Georgia, serif;
  --font-body: "Archivo", "Segoe UI", sans-serif;
  --font-data: "Space Grotesk", "Archivo", monospace;
  --font-clause: "Source Serif 4", Georgia, serif;

  --radius: 14px;
  --shadow: 0 14px 38px rgba(2, 6, 18, 0.55);
  --shadow-lift: 0 22px 54px rgba(2, 6, 18, 0.7), 0 0 32px rgba(65, 201, 232, 0.14);
  --wrap: 1140px;
}

/* ---------- Base ---------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

/* Permite animar block-size:auto (FAQ) en navegadores que lo soportan */
:root { interpolate-size: allow-keywords; }

/* Fundido entre páginas (navegadores con View Transitions) */
@view-transition { navigation: auto; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--void);
  -webkit-font-smoothing: antialiased;
}

/* Retícula de coordenadas: el globo del emblema, proyectado de fondo */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(65, 201, 232, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(65, 201, 232, 0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(120rem 80rem at 50% -10%, #000 30%, transparent 75%);
  mask-image: radial-gradient(120rem 80rem at 50% -10%, #000 30%, transparent 75%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    radial-gradient(70rem 42rem at 85% -12%, rgba(27, 134, 168, 0.22), transparent 62%),
    radial-gradient(52rem 34rem at -10% 108%, rgba(16, 33, 75, 0.55), transparent 60%),
    var(--void);
}

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

/* Grano fílmico sutilísimo sobre toda la página */
html::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 65;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 240px 240px;
}

/* El atributo hidden debe ganar siempre a los display de las clases */
[hidden] { display: none !important; }

/* Solo visible para lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Saltar al contenido (visible solo con foco de teclado) */
.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 100;
  padding: 10px 18px;
  border-radius: 0 0 8px 8px;
  background: var(--cyan);
  color: #041220;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.9rem;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 0; text-decoration: none; }

/* Barra de progreso de lectura (la inyecta main.js) */
.progreso-lectura {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 70;
  transform-origin: 0 50%;
  transform: scaleX(var(--leido, 0));
  background: linear-gradient(90deg, var(--cyan-deep), var(--cyan));
  box-shadow: 0 0 10px var(--cyan-glow);
  pointer-events: none;
}

h1, h2, h3, h4 {
  font-weight: 400;
  line-height: 1.15;
  color: var(--ice);
  margin: 0 0 0.5em;
  text-wrap: balance;
}
/* Títulos: Archivo Black (grabado de cartel). Subtítulos: Commissioner. */
h1, h2 { font-family: var(--font-display); letter-spacing: -0.015em; }
h3, h4 { font-family: var(--font-subtitle); }

p { margin: 0 0 1em; }

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

::selection { background: var(--cyan); color: var(--void); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

/* Los anclajes (#faq, #sobre…) no deben quedar bajo el header pegajoso */
section[id] { scroll-margin-top: 84px; }

/* Barra de desplazamiento discreta (WebKit) */
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: var(--void); }
::-webkit-scrollbar-thumb {
  background: #172a52;
  border-radius: 8px;
  border: 3px solid var(--void);
}
::-webkit-scrollbar-thumb:hover { background: var(--cyan-deep); }

/* ---------- Botones -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-family: var(--font-data);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn:active:not(.btn-disabled) { transform: translateY(0); box-shadow: none; transition-duration: 0.06s; }

.btn-primary {
  background: linear-gradient(135deg, #5ad4ef, var(--cyan) 45%, #2aa5c9);
  color: #041220;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4), 0 6px 22px rgba(65, 201, 232, 0.28);
}
.btn-primary:hover { box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4), 0 10px 30px rgba(65, 201, 232, 0.45); }

.btn-ghost {
  background: rgba(238, 247, 252, 0.05);
  color: var(--ice);
  border-color: rgba(238, 247, 252, 0.28);
}
.btn-ghost:hover { border-color: var(--cyan); background: var(--cyan-dim); box-shadow: 0 0 22px rgba(65, 201, 232, 0.18); }

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border-color: rgba(65, 201, 232, 0.5);
}
.btn-outline:hover {
  background: var(--cyan-dim);
  border-color: var(--cyan);
  box-shadow: 0 0 22px rgba(65, 201, 232, 0.2);
}

.btn-disabled {
  background: transparent;
  color: #8ba3c4;
  border: 1px dashed var(--line);
  cursor: not-allowed;
}
.btn-disabled:hover { transform: none; box-shadow: none; }

/* ---------- Encabezado / navegación ---------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(4, 9, 26, 0.78);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.con-scroll {
  background: rgba(4, 9, 26, 0.92);
  box-shadow: 0 12px 34px rgba(2, 6, 18, 0.55);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  padding: 13px 24px;
  max-width: var(--wrap);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  color: var(--ice);
}
.brand:hover { text-decoration: none; }
.brand img {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 0 10px rgba(65, 201, 232, 0.35));
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.32em;
  margin-right: -0.32em;
  color: var(--ice);
}
.brand-sub {
  display: block;
  font-family: var(--font-data);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--ice); text-decoration: none; }
.nav-links a.activa {
  color: var(--ice);
  border-bottom-color: var(--cyan);
  text-shadow: 0 0 18px var(--cyan-glow);
}
.nav-links .btn { padding: 10px 20px; }
.nav-links a.btn-primary,
.nav-links a.btn-primary:hover { color: #041220; }
.nav-links a.btn.activa {
  color: #041220;
  border-bottom-color: transparent;
  text-shadow: none;
  box-shadow: 0 0 0 2px rgba(238, 247, 252, 0.85), 0 6px 22px rgba(65, 201, 232, 0.35);
}

.nav-toggle {
  display: none;
  background: rgba(238, 247, 252, 0.04);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ice);
  font-size: 1.35rem;
  line-height: 1;
  padding: 6px 12px;
  cursor: pointer;
}

/* Alternador de tema claro/oscuro */
.tema-toggle {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(238, 247, 252, 0.04);
  border: 1px solid var(--line);
  color: var(--ice);
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.tema-toggle:hover { border-color: var(--cyan); background: var(--cyan-dim); }

/* ---------- Héroe (inicio) ------------------------------------------- */
.hero {
  position: relative;
  color: var(--ice);
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(160deg, #060d22 0%, var(--navy) 100%);
}

/* La foto como capa real: zoom perpetuo + parallax que sigue al mouse */
.hero-fondo {
  position: absolute;
  inset: 0;
  overflow: hidden;
  animation: hero-zoom 30s ease-out forwards;
}
@keyframes hero-zoom {
  from { transform: scale(1); }
  to   { transform: scale(1.055); }
}
.hero-fondo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
  transform: translate3d(calc(var(--par-x, 0) * 16px), calc(var(--par-y, 0) * 10px), 0) scale(1.06);
  transition: transform 0.9s cubic-bezier(0.2, 0.6, 0.3, 1);
}
.hero-fondo::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 9, 26, 0.82) 0%, rgba(4, 9, 26, 0.66) 55%, var(--void) 100%),
    radial-gradient(60rem 30rem at 115% -20%, rgba(65, 201, 232, 0.16), transparent 60%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: center;
  gap: 48px;
  padding: 88px 24px 108px;
  min-height: clamp(540px, calc(100vh - 78px), 880px);
  min-height: clamp(540px, calc(100svh - 78px), 880px);
  max-width: var(--wrap);
  margin: 0 auto;
}

/* Guía de scroll: una línea de luz que cae */
.hero-cue {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 54px;
  display: flex;
  justify-content: center;
}
.hero-cue span {
  display: block;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, transparent, var(--cyan));
  transform-origin: top;
  animation: cue-baja 2.4s ease-in-out infinite;
}
@keyframes cue-baja {
  0%   { transform: scaleY(0); opacity: 0; }
  35%  { opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* Indicador de sesión en vivo */
.sesion-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  padding: 7px 15px;
  border: 1px solid rgba(65, 201, 232, 0.35);
  border-radius: 100px;
  background: rgba(65, 201, 232, 0.08);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  font-family: var(--font-data);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 var(--cyan-glow);
  animation: pulso 2.2s ease-out infinite;
}
@keyframes pulso {
  0%   { box-shadow: 0 0 0 0 var(--cyan-glow); }
  70%  { box-shadow: 0 0 0 10px rgba(65, 201, 232, 0); }
  100% { box-shadow: 0 0 0 0 rgba(65, 201, 232, 0); }
}

.hero-eyebrow {
  font-family: var(--font-data);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.9rem, 7.2vw, 5.4rem);
  color: var(--ice);
  margin-bottom: 20px;
  text-shadow: 0 0 60px rgba(65, 201, 232, 0.25);
}
@supports (-webkit-background-clip: text) or (background-clip: text) {
  .hero h1 {
    background: linear-gradient(180deg, #ffffff 52%, #b9e2f2);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
    filter: drop-shadow(0 0 34px rgba(65, 201, 232, 0.22));
  }
}

/* Entrada orquestada del héroe */
.hero .sesion-pill.visible  { animation-delay: 0.05s; }
.hero .hero-eyebrow.visible { animation-delay: 0.18s; }
.hero h1.visible {
  animation: hero-titulo-in 1s cubic-bezier(0.22, 0.61, 0.36, 1) 0.3s backwards;
}
@keyframes hero-titulo-in {
  from { opacity: 0; transform: translateY(26px); filter: blur(10px); }
  to   { opacity: 1; transform: none; filter: blur(0); }
}
.hero .hero-lede.visible   { animation-delay: 0.52s; }
.hero .hero-chips.visible  { animation-delay: 0.68s; }
.hero .hero-cta.visible    { animation-delay: 0.82s; }
.hero .hero-emblem.visible { animation-delay: 0.35s; }

.hero-lede {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text);
  max-width: 34rem;
  margin-bottom: 28px;
}
.hero-lede strong { color: var(--ice); }

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-family: var(--font-data);
  font-size: 0.82rem;
  color: var(--text);
  background: rgba(16, 33, 75, 0.35);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.chip strong { color: var(--cyan); font-weight: 700; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-emblem { display: flex; justify-content: center; position: relative; }
.hero-emblem::before {
  content: "";
  position: absolute;
  inset: -12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(65, 201, 232, 0.22) 0%, transparent 62%);
  animation: aliento 6s ease-in-out infinite;
}
/* Aurora: un anillo de luz que orbita el emblema */
.hero-emblem::after {
  content: "";
  position: absolute;
  inset: -16%;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(65, 201, 232, 0.3) 42deg,
    transparent 96deg,
    transparent 198deg,
    rgba(143, 223, 242, 0.16) 244deg,
    transparent 302deg
  );
  -webkit-mask: radial-gradient(circle, transparent 53%, #000 60%, #000 71%, transparent 78%);
  mask: radial-gradient(circle, transparent 53%, #000 60%, #000 71%, transparent 78%);
  animation: aurora-giro 16s linear infinite;
}
@keyframes aurora-giro {
  to { transform: rotate(360deg); }
}
@keyframes aliento {
  0%, 100% { opacity: 0.65; transform: scale(0.97); }
  50%      { opacity: 1; transform: scale(1.04); }
}
.hero-emblem img {
  position: relative;
  width: min(345px, 68vw);
  filter: drop-shadow(0 24px 50px rgba(0, 0, 0, 0.6)) drop-shadow(0 0 34px rgba(65, 201, 232, 0.3));
  animation: flotar 7s ease-in-out infinite;
}
@keyframes flotar {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

/* =====================================================================
   CONTADOR 3D (flip-clock con Three.js) — columna derecha del héroe
   ===================================================================== */
/* Wrapper de la columna derecha: apila el emblema y, debajo, el contador,
   y los centra verticalmente para que formen una sola unidad visual. */
.hero-derecha {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(20px, 3vw, 38px);
}

/* Contenedor del contador (compartido por inicio.html e index.html/intro). */
.contador3d {
  width: 100%;
  max-width: 460px;
  margin: 44px auto 0;   /* baja el contador para que el aura del logo no choque con el título */
  text-align: center;
}
.contador3d-titulo {
  margin: 0 0 -22px;   /* baja el título hasta quedar a la par de los números */
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
/* El canvas es transparente (deja ver el fondo del héroe); su alto se deriva
   del ancho con aspect-ratio → totalmente responsivo. */
.contador3d-lienzo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 20 / 5;
}
.contador3d-etiquetas {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-top: -22px;   /* sube las etiquetas casi hasta los números */
}
.contador3d-etiquetas span {
  font-family: var(--font-data);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}
/* Mensaje que reemplaza al contador al llegar a cero. */
.contador3d-fin {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  color: var(--ice);
  text-shadow: 0 0 34px rgba(65, 201, 232, 0.35);
}
.contador3d-fin.mostrar {
  animation: contador-fin-in 0.9s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
@keyframes contador-fin-in {
  from { opacity: 0; transform: translateY(16px) scale(0.94); filter: blur(6px); }
  to   { opacity: 1; transform: none; filter: blur(0); }
}
@media (prefers-reduced-motion: reduce) {
  .contador3d-fin.mostrar { animation: none; }
}

/* ---------- Secciones como cláusulas de resolución -------------------- */
.section { padding: 88px 0; }
.section-alt {
  background: linear-gradient(180deg, rgba(16, 33, 75, 0.22), rgba(7, 16, 38, 0.55));
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

/* Las cláusulas son ceremoniales: van en oro laurel y a gran tamaño.
   Regla de color del sitio: cian = interactivo/en vivo · oro = protocolo. */
.clause {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 10px;
}
.clause::before {
  content: "";
  align-self: center;
  width: 44px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
.clause span {
  font-family: var(--font-clause);
  font-style: italic;
  font-size: clamp(1.35rem, 2.4vw, 1.8rem);
  color: var(--gold);
}

.section-head { max-width: 46rem; margin-bottom: 44px; }
.head-espaciada { margin-top: 56px; }
.section-head h2 { font-size: clamp(2rem, 4vw, 2.9rem); }
.section-head p { color: var(--text); font-size: 1.05rem; }

/* ---------- Procedimiento: línea que se despliega ----------------------
   En reposo es una línea delgada con los cinco pasos, sin fotos. Al pasar
   el mouse (o tocar, o enfocar) la línea se abre y aparece la imagen del
   paso señalado; al salir, vuelve a ser una línea. ----------------------- */
.ruta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 14px;
  height: 76px;
  transition: height 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.ruta:hover,
.ruta:focus-within,
.ruta:has(.ruta-paso.activa) {
  height: 380px;
}
.ruta-paso {
  position: relative;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-solid);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: flex 0.55s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease;
}
.ruta-paso:is(:hover, :focus-visible, .activa) {
  flex: 3;
  border-color: rgba(65, 201, 232, 0.5);
}
/* Si el mouse recorre la ruta, manda el hover y el panel fijado cede */
.ruta:hover .ruta-paso.activa:not(:hover):not(:focus-visible) { flex: 1; }

.ruta-media {
  position: absolute;
  inset: 0;
}
.ruta-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.55) saturate(0.8) brightness(0.6);
  transform: scale(1.05);
  opacity: 0;
  transition: filter 0.55s ease, transform 0.55s ease, opacity 0.45s ease;
}
/* Línea desplegada: los pasos no señalados muestran su foto en blanco y negro */
.ruta:hover .ruta-media img,
.ruta:focus-within .ruta-media img,
.ruta:where(:has(.ruta-paso.activa)) .ruta-media img {
  opacity: 1;
  filter: grayscale(1) saturate(0.5) brightness(0.42);
}
.ruta:hover .ruta-media::after,
.ruta:focus-within .ruta-media::after,
.ruta:where(:has(.ruta-paso.activa)) .ruta-media::after { opacity: 1; }
.ruta-paso:is(:hover, :focus-visible, .activa) .ruta-media img {
  filter: grayscale(0) saturate(1) brightness(0.94);
  transform: scale(1);
  opacity: 1;
}
.ruta:hover .ruta-paso.activa:not(:hover):not(:focus-visible) .ruta-media img {
  filter: grayscale(1) saturate(0.5) brightness(0.42);
  transform: scale(1.05);
  opacity: 1;
}
.ruta-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 9, 26, 0.3) 0%, rgba(4, 9, 26, 0.12) 40%, rgba(4, 9, 26, 0.92) 100%);
  opacity: 0;
  transition: opacity 0.45s ease;
}
.ruta-paso:is(:hover, :focus-visible, .activa) .ruta-media::after { opacity: 1; }
.ruta:hover .ruta-paso.activa:not(:hover):not(:focus-visible) .ruta-media::after { opacity: 1; }
.ruta-media.sin-foto {
  background:
    radial-gradient(20rem 12rem at 50% 20%, rgba(65, 201, 232, 0.14), transparent 70%),
    var(--panel-solid);
}
.ruta-media.sin-foto img { display: none; }

.ruta-num {
  position: absolute;
  top: 16px;
  left: 18px;
  z-index: 1;
  font-family: var(--font-data);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-shadow: 0 0 14px var(--cyan-glow);
}
.ruta-info {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 18px;
}
.ruta-paso h3 {
  font-size: 1.05rem;
  margin: 0;
  color: var(--ice);
  white-space: nowrap;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
  transition: font-size 0.45s ease;
}
.ruta-paso:is(:hover, :focus-visible, .activa) h3 { font-size: 1.4rem; }
.ruta-texto {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.ruta-texto p {
  overflow: hidden;
  margin: 0;
  max-width: 44ch;
  font-size: 0.94rem;
  line-height: 1.6;
  color: #d5e3f1;
  opacity: 0;
  transition: opacity 0.4s ease 0.1s;
}
.ruta-paso:is(:hover, :focus-visible, .activa) .ruta-texto { grid-template-rows: 1fr; }
.ruta-paso:is(:hover, :focus-visible, .activa) .ruta-texto p { opacity: 1; padding-top: 8px; }
.ruta:hover .ruta-paso.activa:not(:hover):not(:focus-visible) .ruta-texto { grid-template-rows: 0fr; }
.ruta:hover .ruta-paso.activa:not(:hover):not(:focus-visible) .ruta-texto p { opacity: 0; }
.ruta:hover .ruta-paso.activa:not(:hover):not(:focus-visible) h3 { font-size: 1.05rem; }

/* ---------- Pilares (sobre el modelo) --------------------------------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.pillar {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.pillar:hover {
  transform: translateY(-4px);
  border-color: rgba(65, 201, 232, 0.45);
  box-shadow: 0 0 30px rgba(65, 201, 232, 0.1);
}
.pillar h3 { font-size: 1.15rem; margin-bottom: 8px; }
.pillar p { font-size: 0.92rem; color: var(--text); margin: 0; }
.pillar-mark {
  font-family: var(--font-clause);
  font-style: italic;
  color: var(--cyan);
  font-size: 1rem;
  display: block;
  margin-bottom: 10px;
}

/* ---------- Placards (foros): expedientes con foto --------------------- */
.foros-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.placard {
  position: relative;
  background: linear-gradient(180deg, rgba(16, 33, 75, 0.42), rgba(7, 16, 38, 0.88));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  cursor: pointer;
  scroll-margin-top: 84px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.placard:hover {
  transform: translateY(-6px) scale(1.025);
  box-shadow: var(--shadow-lift);
  border-color: rgba(65, 201, 232, 0.5);
}

/* Indicador de que el placard se puede expandir */
.placard-expandir {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(4, 9, 26, 0.55);
  border: 1px solid rgba(238, 247, 252, 0.3);
  color: var(--ice);
  font-size: 0.95rem;
  line-height: 1;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.placard:hover .placard-expandir {
  background: rgba(65, 201, 232, 0.35);
  border-color: var(--cyan);
}

/* ---- Placard expandido: el foro en sesión plenaria --------------------
   La foto pasa a ser el fondo de todo el panel; la sigla se vuelve
   titular y los tópicos flotan como paneles de vidrio sobre la imagen.
   Se cierra SOLO con el botón ✕ (o abriendo otro foro). ----------------- */
.placard.expandido {
  order: -1;
  grid-column: 1 / -1;
  cursor: default;
  display: block;
  border-color: rgba(65, 201, 232, 0.55);
  box-shadow: var(--shadow-lift);
  animation: expandir-in 0.45s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}
@keyframes expandir-in {
  from { opacity: 0; transform: translate3d(0, 14px, 0) scale(0.99); }
}
.placard.expandido:hover { transform: none; }

.placard.expandido .placard-media {
  position: absolute;
  inset: 0;
  aspect-ratio: auto;
  min-height: 0;
  height: 100%;
}
.placard.expandido .placard-scrim {
  background:
    linear-gradient(100deg, rgba(4, 9, 26, 0.92) 0%, rgba(4, 9, 26, 0.6) 42%, rgba(4, 9, 26, 0.16) 74%, rgba(4, 9, 26, 0.42) 100%),
    linear-gradient(0deg, rgba(4, 9, 26, 0.9) 0%, rgba(4, 9, 26, 0.4) 36%, transparent 62%);
}
.placard.expandido .placard-expandir { display: none; }
.placard.expandido .badge { top: 26px; right: 80px; }

.placard.expandido .placard-sigla {
  top: 34px;
  left: 44px;
  right: 140px;
  bottom: auto;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  letter-spacing: 0.1em;
  animation: sigla-in 0.55s cubic-bezier(0.4, 0, 0.2, 1) 0.08s backwards;
}
@keyframes sigla-in {
  from { opacity: 0; transform: translate3d(-16px, 0, 0); }
}

.placard.expandido .placard-body {
  position: relative;
  pointer-events: auto;
  z-index: 1;
  min-height: 460px;
  padding: 140px 44px 38px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.placard.expandido .placard-nombre {
  font-size: 1.18rem;
  line-height: 1.5;
  color: var(--ice);
  max-width: 58ch;
  margin-bottom: 18px;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.65);
}
/* --- Escenas: portada → tópico 1 → tópico 2 (crossfade de imágenes) --- */
.escena-img { display: none; }
.placard.expandido .escena-img {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease;
}
/* La imagen activa respira con un zoom lentísimo (Ken Burns) */
.placard.expandido[data-escena="1"] .escena-img.escena-1,
.placard.expandido[data-escena="2"] .escena-img.escena-2 {
  opacity: 1;
  animation: kenburns 18s ease-out forwards;
}
.placard.expandido[data-escena="0"] .img-portada {
  animation: kenburns 18s ease-out forwards;
}
@keyframes kenburns {
  from { transform: scale(1); }
  to   { transform: scale(1.08); }
}

/* Un tópico a la vez, apilados con altura estable */
.placard.expandido .placard-topicos {
  border-top: 0;
  padding-top: 0;
  display: grid;
  grid-template-columns: 1fr;
}
.placard.expandido .placard-topicos li {
  grid-area: 1 / 1;
  display: block;
  max-width: 46rem;
  padding: 18px 22px 16px;
  background: rgba(4, 9, 26, 0.62);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(65, 201, 232, 0.3);
  border-radius: 12px;
  font-size: 1rem;
  line-height: 1.65;
  color: #d5e3f1;
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  pointer-events: none;
  transition: opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1), transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.placard.expandido[data-escena="1"] .placard-topicos li:nth-child(1),
.placard.expandido[data-escena="2"] .placard-topicos li:nth-child(2) {
  opacity: 1;
  transform: none;
}
/* Al entrar al modo expandido se suprime la transición un instante para
   que los tópicos de la tarjeta colapsada no se vean como fantasmas */
.placard.sin-transicion .placard-topicos li { transition: none; }
.placard.expandido .placard-topicos .topico-num {
  display: block;
  margin-bottom: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.placard.expandido .placard-topicos .topico-num::before { content: "Tópico "; }

/* Invitación a recorrer (solo en la portada del panel) */
.placard-hint { display: none; }
.placard.expandido .placard-hint {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  position: absolute;
  left: 44px;
  bottom: 44px;
  font-family: var(--font-data);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.7);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s ease;
}
.placard.expandido[data-escena="0"] .placard-hint { opacity: 1; }
.placard-hint::after {
  content: "⟶";
  font-size: 1rem;
  animation: hint-flecha 1.8s ease-in-out infinite;
}
@keyframes hint-flecha {
  0%, 100% { transform: translateX(0); }
  50%      { transform: translateX(7px); }
}

/* Segmentos de navegación (estilo «stories»), al pie del panel */
.placard-segmentos { display: none; }
.placard.expandido .placard-segmentos {
  display: flex;
  gap: 8px;
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.placard-seg {
  width: 52px;
  height: 5px;
  border-radius: 100px;
  border: 0;
  padding: 0;
  background: rgba(238, 247, 252, 0.3);
  cursor: pointer;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.placard-seg:hover { background: rgba(238, 247, 252, 0.6); }
.placard-seg[aria-current="true"] {
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan-glow);
}

/* Botón de cierre del panel */
.placard-cerrar {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 2;
  width: 42px;
  height: 42px;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(4, 9, 26, 0.6);
  border: 1px solid rgba(238, 247, 252, 0.35);
  color: var(--ice);
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease-out, border-color 0.15s ease-out, transform 0.15s ease-out;
}
.placard.expandido .placard-cerrar { display: flex; }
.placard-cerrar:hover,
.placard-cerrar:focus-visible {
  background: rgba(65, 201, 232, 0.3);
  border-color: var(--cyan);
  transform: scale(1.08);
}
.placard-cerrar:active { transform: scale(0.96); }

/* Foco de luz que sigue al cursor sobre el placard */
.placard::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
  background: radial-gradient(
    380px circle at var(--sx, 50%) var(--sy, 50%),
    rgba(65, 201, 232, 0.13),
    transparent 65%
  );
}
.placard:hover::before { opacity: 1; }
.placard.expandido::before { display: none; }

/* Esquineras HUD: la delegación en la mira */
.placard::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  transition: opacity 0.2s ease;
  background:
    linear-gradient(var(--cyan), var(--cyan)) no-repeat left 10px top 10px / 16px 2px,
    linear-gradient(var(--cyan), var(--cyan)) no-repeat left 10px top 10px / 2px 16px,
    linear-gradient(var(--cyan), var(--cyan)) no-repeat right 10px top 10px / 16px 2px,
    linear-gradient(var(--cyan), var(--cyan)) no-repeat right 10px top 10px / 2px 16px,
    linear-gradient(var(--cyan), var(--cyan)) no-repeat left 10px bottom 10px / 16px 2px,
    linear-gradient(var(--cyan), var(--cyan)) no-repeat left 10px bottom 10px / 2px 16px,
    linear-gradient(var(--cyan), var(--cyan)) no-repeat right 10px bottom 10px / 16px 2px,
    linear-gradient(var(--cyan), var(--cyan)) no-repeat right 10px bottom 10px / 2px 16px;
}
.placard:hover::after { opacity: 1; }

.placard-media {
  position: relative;
  aspect-ratio: 3 / 4;
  min-height: 300px;
  overflow: hidden;
  background:
    radial-gradient(24rem 14rem at 50% 0%, rgba(65, 201, 232, 0.16), transparent 70%),
    var(--panel-solid);
}
.placard-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
  transition: transform 0.5s ease, filter 0.45s ease;
}
/* Con el mouse en la grilla, las tarjetas no señaladas quedan en blanco y negro */
.foros-grid:hover .placard:not(:hover):not(.expandido) .placard-media img {
  filter: grayscale(1) saturate(0.7) brightness(0.55);
}
.placard:hover .placard-media img { transform: scale(1.06); }

/* Vitral oscuro sobre la foto para que la sigla siempre lea bien */
.placard-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 9, 26, 0.28) 0%, rgba(4, 9, 26, 0) 40%, rgba(4, 9, 26, 0.88) 100%);
}
/* Línea de escaneo bajo la foto */
.placard-media::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 14px var(--cyan-glow);
}

/* ---- Tríptico de hover: tres franjas (foro / tópico 1 / tópico 2) ----
   En reposo la tarjeta es solo la portada. Al pasar el mouse entran en
   cascada tres franjas con foto: el foro arriba y un tópico por franja. -- */
.placard-tris {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.tris-fila {
  position: relative;
  flex: 1;
  min-height: 0;
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel-solid);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.4s ease, transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.tris-fila img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.95) brightness(0.62);
}
.tris-fila::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 9, 26, 0.05) 0%, rgba(4, 9, 26, 0.88) 80%);
}
.tris-texto {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 10px;
  z-index: 1;
  display: grid;
  gap: 2px;
}
.tris-etiqueta {
  font-family: var(--font-data);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  text-shadow: 0 0 12px var(--cyan-glow);
}
.tris-titulo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.06em;
  color: var(--ice);
  line-height: 1.15;
}
.tris-detalle {
  font-size: 0.78rem;
  line-height: 1.45;
  color: #dce8f4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.placard:is(:hover, :focus-visible):not(.expandido) .placard-tris { opacity: 1; }
.placard:is(:hover, :focus-visible):not(.expandido) .tris-fila { opacity: 1; transform: none; }
.placard:is(:hover, :focus-visible):not(.expandido) .tris-fila:nth-child(2) { transition-delay: 0.08s; }
.placard:is(:hover, :focus-visible):not(.expandido) .tris-fila:nth-child(3) { transition-delay: 0.16s; }

.placard-media.sin-foto img { display: none; }
.placard-media.sin-foto::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../images/emblema.png") center / 46% no-repeat;
  opacity: 0.16;
  filter: grayscale(0.4);
}

.placard-sigla {
  position: absolute;
  left: 18px;
  bottom: 62px;
  right: 18px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  letter-spacing: 0.08em;
  color: var(--ice);
  line-height: 1.15;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.85);
}

.placard .badge {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 1;
}

.placard-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 16px 20px 14px;
  pointer-events: none;
}
.placard:not(.expandido) .placard-nombre {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
  font-size: 0.9rem;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.85);
}
.placard:not(.expandido) .placard-topicos { display: none; }

.placard-nombre {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ice);
  margin: 0 0 14px;
  line-height: 1.45;
}

.badge {
  font-family: var(--font-data);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 100px;
  white-space: nowrap;
}
/* Los badges siempre viven sobre una fotografía: base de vidrio oscuro
   para que contrasten igual sobre cielos claros u oscuros */
.badge-doble {
  background: rgba(4, 9, 26, 0.58);
  color: #8fdff2;
  border: 1px solid rgba(65, 201, 232, 0.55);
}
.badge-junior {
  background: rgba(4, 9, 26, 0.58);
  color: #e8c97e;
  border: 1px solid rgba(211, 168, 76, 0.6);
}

.placard-topicos {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 12px;
}
.placard-topicos li {
  display: flex;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.55;
}
.placard-topicos .topico-num {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--cyan);
  font-size: 0.9rem;
  line-height: 1.5;
}

.foros-footer { margin-top: 36px; text-align: center; }

/* Créditos fotográficos */
.creditos-fotos {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--text-dim);
}
.creditos-fotos strong {
  display: block;
  margin-bottom: 10px;
  color: var(--text);
  font-family: var(--font-data);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
}
.creditos-lista {
  display: block;
  columns: 2;
  column-gap: 36px;
}
.credito-linea { display: block; margin-bottom: 4px; break-inside: avoid; }
.creditos-fotos a { color: var(--text-dim); text-decoration: none; }
.creditos-fotos a:hover { color: var(--cyan); text-decoration: underline; }

/* ---------- Lema (banda manifiesto a sangre completa) ------------------ */
.lema {
  position: relative;
  overflow: hidden;
  padding: 130px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  text-align: center;
}
.lema-fondo {
  position: absolute;
  inset: 0;
}
.lema-fondo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  animation: kenburns 34s ease-out forwards;
}
.lema-fondo::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60rem 24rem at 50% 55%, rgba(4, 9, 26, 0.35), rgba(4, 9, 26, 0.88) 78%),
    linear-gradient(180deg, var(--void), transparent 22%, transparent 78%, var(--void));
}
.lema-inner { position: relative; }
.lema-eyebrow {
  font-family: var(--font-data);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--gold);
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.85);
  margin-bottom: 22px;
}
.lema-texto {
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 6vw, 4.4rem);
  line-height: 1.12;
  color: var(--ice);
  margin: 0 auto;
  max-width: 22ch;
  text-shadow: 0 4px 40px rgba(0, 0, 0, 0.75);
}
.lema-texto em {
  font-style: normal;
  color: var(--gold);
}

/* ---------- Documentos ------------------------------------------------ */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.doc-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.doc-card:hover { transform: translateY(-4px); border-color: rgba(65, 201, 232, 0.45); }
.doc-tag {
  font-family: var(--font-data);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}
.doc-card h3 { font-size: 1.35rem; margin: 6px 0; }
.doc-card p { color: var(--text); font-size: 0.95rem; flex-grow: 1; }
.doc-card .btn { align-self: flex-start; }

/* ---------- Cláusula operativa (CTA inscripciones) -------------------- */
.resolve {
  position: relative;
  background:
    radial-gradient(48rem 26rem at 110% 120%, rgba(65, 201, 232, 0.2), transparent 60%),
    linear-gradient(160deg, #14254e, #081127);
  border: 1px solid rgba(65, 201, 232, 0.3);
  color: var(--ice);
  border-radius: 18px;
  padding: 56px 48px;
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  align-items: center;
  gap: 32px;
  overflow: hidden;
  box-shadow: 0 0 60px rgba(65, 201, 232, 0.08) inset, var(--shadow);
}
.resolve::before {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 55%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: barrido 5s linear infinite;
}
@keyframes barrido {
  0%   { left: -60%; }
  100% { left: 110%; }
}
.resolve h2 { color: var(--ice); font-size: clamp(1.7rem, 3.2vw, 2.3rem); }
.resolve p { color: var(--text); margin: 0; }
.resolve-action { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
.resolve-note { font-family: var(--font-data); font-size: 0.8rem; color: var(--text); text-align: right; }

/* ---------- Inscripciones --------------------------------------------- */
.pasos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}
.paso {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.paso:hover { transform: translateY(-4px); border-color: rgba(65, 201, 232, 0.45); }
.paso-num {
  font-family: var(--font-clause);
  font-style: italic;
  font-size: 1rem;
  color: var(--cyan);
  display: block;
  margin-bottom: 8px;
}
.paso h3 { font-size: 1.1rem; margin-bottom: 6px; }
.paso p { font-size: 0.9rem; color: var(--text); margin: 0; }
.paso a { font-weight: 600; }

.forms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.form-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.form-card:hover { transform: translateY(-4px); border-color: rgba(65, 201, 232, 0.45); }
.form-card h3 { font-size: 1.15rem; }
.form-card p { font-size: 0.9rem; color: var(--text); flex-grow: 1; }
.form-card .btn { align-self: flex-start; padding: 10px 18px; font-size: 0.85rem; }

.aviso {
  margin-top: 32px;
  padding: 16px 20px;
  border: 1px solid rgba(211, 168, 76, 0.35);
  border-left: 4px solid var(--gold);
  background: var(--gold-dim);
  border-radius: 0 10px 10px 0;
  font-size: 0.92rem;
  color: #e6d5ac;
}
.aviso strong { color: #f0dfb6; }

/* ---------- FAQ --------------------------------------------------------
   En escritorio: dos columnas independientes de 3 preguntas (3 y 3);
   en el teléfono se apilan en una sola columna. -------------------------- */
.faq {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: start;
}
.faq-col {
  display: grid;
  gap: 12px;
  align-content: start;
}
.faq details {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 22px;
  transition: border-color 0.2s ease;
}
.faq details:hover { border-color: rgba(65, 201, 232, 0.35); }
.faq details:hover summary { color: #bfe9f5; }
.faq details[open] { border-color: rgba(65, 201, 232, 0.45); }
.faq summary {
  cursor: pointer;
  padding: 18px 0;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ice);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--font-data);
  font-size: 1.4rem;
  color: var(--cyan);
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
/* Apertura fluida (navegadores con ::details-content e interpolate-size) */
.faq details::details-content {
  block-size: 0;
  overflow: clip;
  transition: block-size 0.4s cubic-bezier(0.4, 0, 0.2, 1), content-visibility 0.4s allow-discrete;
}
.faq details[open]::details-content { block-size: auto; }
.faq details p {
  color: var(--text);
  font-size: 0.95rem;
  padding-bottom: 18px;
  margin: 0;
}

/* ---------- Héroe de subpáginas ---------------------------------------- */
.page-hero {
  position: relative;
  background:
    radial-gradient(50rem 20rem at 110% -30%, rgba(65, 201, 232, 0.14), transparent 60%),
    linear-gradient(160deg, #060d22, #16294f);
  border-bottom: 1px solid var(--line-soft);
  color: var(--ice);
  padding: 68px 0 58px;
}
.page-hero h1 { color: var(--ice); font-size: clamp(2.1rem, 4.5vw, 3.1rem); margin-bottom: 10px; }
.page-hero p { color: var(--text); max-width: 40rem; margin: 0; }

/* ---------- Pie de página ----------------------------------------------- */
.site-footer {
  position: relative;
  background: #030716;
  color: var(--text);
  padding: 64px 0 32px;
  margin-top: 0;
  border-top: 1px solid var(--line-soft);
  overflow: hidden;
}
/* Sello monumental grabado al pie */
.site-footer::after {
  content: "AIMUN";
  position: absolute;
  left: 50%;
  bottom: -0.24em;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 24vw, 19rem);
  line-height: 1;
  letter-spacing: 0.16em;
  margin-right: -0.16em;
  color: rgba(65, 201, 232, 0.05);
  pointer-events: none;
  user-select: none;
}
@supports (-webkit-text-stroke: 1px black) {
  .site-footer::after {
    color: transparent;
    -webkit-text-stroke: 1px rgba(65, 201, 232, 0.09);
  }
}
.site-footer .wrap { position: relative; z-index: 1; }
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-deep), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line-soft);
}
.footer-brand { display: flex; align-items: flex-start; gap: 14px; }
.footer-desc { font-size: 0.85rem; margin: 0; }
.footer-brand img { width: 48px; height: 48px; filter: drop-shadow(0 0 10px rgba(65, 201, 232, 0.3)); }
.footer-brand .brand-name { color: var(--ice); }
.footer-signoff {
  font-family: var(--font-clause);
  font-style: italic;
  color: var(--cyan);
  font-size: 1.05rem;
  margin: 10px 0 6px;
}
.footer-col h4 {
  color: var(--ice);
  font-family: var(--font-data);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-col a { color: var(--text); font-size: 0.92rem; }
.footer-col a:hover { color: var(--cyan); }
.footer-col li { font-size: 0.92rem; }
/* Persona de contacto: nombre, rol y teléfono */
.contacto-persona { display: grid; gap: 1px; line-height: 1.4; }
.contacto-persona .contacto-nombre { color: var(--ice); font-weight: 500; }
.contacto-persona .contacto-rol {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.footer-bottom {
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-data);
  font-size: 0.76rem;
  color: var(--text-dim);
}

/* ---------- Animaciones de entrada --------------------------------------
   Con @keyframes (no transition) para no pisar las transiciones de hover
   de las tarjetas que también llevan .reveal. ------------------------------ */
.reveal { opacity: 0; }
.reveal.visible {
  opacity: 1;
  animation: reveal-in 0.6s ease backwards;
}
@keyframes reveal-in {
  from { opacity: 0; transform: translateY(22px); }
}

.hero .reveal.visible { animation-duration: 0.8s; }

/* Cascada sutil en las cuadrículas */
.foros-grid .reveal.visible:nth-child(3n+2), .pillars .reveal.visible:nth-child(4n+2),
.forms-grid .reveal.visible:nth-child(3n+2), .pasos .reveal.visible:nth-child(3n+2) { animation-delay: 0.08s; }
.foros-grid .reveal.visible:nth-child(3n+3), .pillars .reveal.visible:nth-child(4n+3),
.forms-grid .reveal.visible:nth-child(3n+3), .pasos .reveal.visible:nth-child(3n+3) { animation-delay: 0.16s; }
.pillars .reveal.visible:nth-child(4n+4) { animation-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  @view-transition { navigation: none; }
  .reveal { opacity: 1; }
  .reveal.visible { animation: none; }
  .hero h1.visible { animation: none; }
  .hero-fondo { animation: none; }
  .hero-fondo img { transition: none; transform: none; }
  .hero-emblem::after { animation: none; }
  .faq details::details-content { transition: none; }
  .hero-cue span { animation: none; }
  .lema-fondo img { animation: none; }
  .ruta, .ruta-paso, .ruta-media img, .ruta-media::after, .ruta-paso h3, .ruta-texto, .ruta-texto p { transition: none; }
  .placard::before { transition: none; }
  .placard-tris, .tris-fila { transition: none; transform: none; }
  .site-header { transition: none; }
  .btn, .placard, .pillar, .paso, .form-card, .doc-card { transition: none; }
  .live-dot, .hero-emblem::before, .hero-emblem img, .resolve::before { animation: none; }
  .placard-media img { transition: none; }
  .placard:hover .placard-media img { transform: none; }
  .placard:hover { transform: none; }
  .placard.expandido,
  .placard.expandido .placard-sigla { animation: none; }
  .placard.expandido .img-portada,
  .placard.expandido .escena-img,
  .placard.expandido[data-escena="0"] .img-portada,
  .placard.expandido[data-escena="1"] .escena-img.escena-1,
  .placard.expandido[data-escena="2"] .escena-img.escena-2 { animation: none; transition: none; }
  .placard.expandido .placard-topicos li { transition: none; transform: none; }
  .placard-hint::after { animation: none; }
  .placard-seg { transition: none; }
  .placard-cerrar { transition: none; }
  .placard-cerrar:hover, .placard-cerrar:active { transform: none; }
  .faq summary::after { transition: none; }
  .skip-link { transition: none; }
}

/* ---------- Responsive ---------------------------------------------------- */
@media (max-width: 1000px) {
  .nav-links { gap: 17px; }
  .foros-grid, .forms-grid { grid-template-columns: repeat(2, 1fr); }
  .placard.expandido .placard-body { min-height: 420px; padding: 120px 30px 30px; }
  .placard.expandido .placard-sigla { left: 30px; }
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; padding: 72px 24px 64px; }
  .hero-derecha { order: -1; }   /* en móvil, logo + contador van sobre el texto */
  .hero-emblem { order: -1; }
  .hero-emblem img { width: 170px; }
  .resolve { grid-template-columns: 1fr; padding: 40px 30px; }
  .resolve-action { align-items: flex-start; }
  .resolve-note { text-align: left; }
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .placard.expandido .placard-body { min-height: 400px; padding: 104px 20px 22px; }
  .placard.expandido .placard-sigla {
    top: 24px;
    left: 20px;
    right: 78px;
    font-size: clamp(1.7rem, 7vw, 2.3rem);
  }
  .placard.expandido .badge { top: 22px; right: 74px; }
  .placard.expandido .placard-nombre { font-size: 1.05rem; }
  .placard.expandido .placard-topicos li { font-size: 0.93rem; padding: 15px 18px 13px; }
  .placard.expandido .placard-hint { left: 20px; bottom: 42px; font-size: 0.7rem; }
  .placard-seg { width: 38px; }
  .placard.expandido .placard-segmentos { bottom: 12px; }
  .placard-cerrar { top: 16px; right: 16px; width: 40px; height: 40px; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(4, 9, 26, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    padding: 10px 24px 20px;
    display: none;
  }
  .nav-links.abierta { display: flex; }
  .nav-links a:not(.btn) { padding: 13px 4px; border-bottom: 1px solid var(--line-soft); }
  .nav-links .btn { margin-top: 14px; justify-content: center; }
  .pasos { grid-template-columns: 1fr; }
  .faq { grid-template-columns: 1fr; gap: 12px; }
  /* Acordeón vertical: el paso activo crece en altura (flex-basis auto,
     porque el flex:1 de escritorio colapsaría la altura en columna) */
  .ruta { flex-direction: column; height: auto; gap: 12px; }
  .ruta:hover, .ruta:focus-within, .ruta:has(.ruta-paso.activa) { height: auto; }
  .ruta-paso,
  .ruta-paso:is(:hover, :focus-visible, .activa),
  .ruta:hover .ruta-paso.activa:not(:hover):not(:focus-visible) {
    flex: 0 0 auto;
  }
  .ruta-paso {
    height: 78px;
    transition: height 0.5s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease;
  }
  .ruta-paso:is(:hover, :focus-visible, .activa) { height: 300px; }
  .ruta:hover .ruta-paso.activa:not(:hover):not(:focus-visible) { height: 78px; }
  .ruta-paso:is(:hover, :focus-visible, .activa) h3 { font-size: 1.25rem; }
}

@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .lema { padding: 88px 0; }
  .hero-cue { display: none; }
  /* Héroe compacto: el CTA debe asomar en la primera pantalla */
  .hero-inner { min-height: 0; padding: 40px 24px 48px; gap: 26px; }
  .hero-emblem img { width: 118px; }
  .hero h1 { margin-bottom: 14px; }
  .hero-lede { margin-bottom: 20px; }
  .hero-chips { margin-bottom: 22px; }
  .sesion-pill { margin-bottom: 16px; }
  .foros-grid, .forms-grid, .pillars, .docs-grid, .pasos { grid-template-columns: 1fr; }
  /* Footer móvil: marca a lo ancho arriba; Conferencia y Contacto lado a lado */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px 18px; }
  .footer-brand { grid-column: 1 / -1; }
  .creditos-lista { columns: 1; }
  .hero-inner { padding: 56px 24px 56px; }
  .hero-chips { gap: 8px; }
  .chip { font-size: 0.78rem; padding: 7px 13px; }
  .resolve { padding: 34px 22px; }
  .placard-media { aspect-ratio: 16 / 8.4; }
}

/* =====================================================================
   TEMA CLARO — fondo blanco con la retícula y acentos en el azul del
   emblema. Las bandas de marca (encabezado, héroe con foto, franja de
   datos, héroes de subpágina, cláusula operativa y pie) permanecen
   oscuras para que el emblema y las fotos luzcan igual en ambos temas.
   El JS pone data-tema="claro"|"oscuro" en <html> según el sistema o
   la elección guardada del visitante.
   ===================================================================== */

:root[data-tema="claro"] body {
  background: #f5f8fb;
  color: #51617f;
}
:root[data-tema="claro"] body::before {
  /* La retícula conserva el cian del modo noche, visible sobre blanco */
  background-image:
    linear-gradient(rgba(65, 201, 232, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(65, 201, 232, 0.22) 1px, transparent 1px);
}
:root[data-tema="claro"] body::after {
  background:
    radial-gradient(70rem 42rem at 85% -12%, rgba(23, 112, 138, 0.10), transparent 62%),
    radial-gradient(52rem 34rem at -10% 108%, rgba(16, 33, 75, 0.06), transparent 60%),
    #f5f8fb;
}

:root[data-tema="claro"] h1,
:root[data-tema="claro"] h2,
:root[data-tema="claro"] h3,
:root[data-tema="claro"] h4 { color: #10214b; }
/* Las bandas oscuras (y los paneles sobre foto) conservan sus títulos claros.
   Los pasos del procedimiento viven sobre fotos oscuras: su título debe
   quedar claro también en tema claro, o sale ilegible. */
:root[data-tema="claro"] .hero h1,
:root[data-tema="claro"] .page-hero h1,
:root[data-tema="claro"] .resolve h2,
:root[data-tema="claro"] .ruta-paso h3,
:root[data-tema="claro"] .footer-col h4 { color: var(--ice); }

:root[data-tema="claro"] a { color: #17708a; }
/* Pines: elementos que viven en bandas oscuras o con fondo propio
   y no deben heredar el azul de enlace del tema claro */
:root[data-tema="claro"] .btn-primary { color: #041220; }
:root[data-tema="claro"] .btn-ghost { color: var(--ice); }
:root[data-tema="claro"] .skip-link { color: #041220; }
:root[data-tema="claro"] .nav-links a { color: var(--text); }
:root[data-tema="claro"] .nav-links a:hover { color: var(--ice); }
:root[data-tema="claro"] .nav-links a.activa { color: var(--ice); }
:root[data-tema="claro"] .nav-links a.btn-primary,
:root[data-tema="claro"] .nav-links a.btn-primary:hover,
:root[data-tema="claro"] .nav-links a.btn.activa { color: #041220; }
:root[data-tema="claro"] .site-footer a { color: var(--text); }
:root[data-tema="claro"] .footer-col a:hover { color: var(--cyan); }

:root[data-tema="claro"] ::-webkit-scrollbar-track { background: #eef2f7; }
:root[data-tema="claro"] ::-webkit-scrollbar-thumb {
  background: #b9cfdd;
  border-color: #eef2f7;
}

/* Secciones y encabezados de sección */
:root[data-tema="claro"] .section-head p { color: #51617f; }
:root[data-tema="claro"] .section-alt {
  background: linear-gradient(180deg, #edf3f8, #e7eef6);
  border-color: #dbe6ef;
}
:root[data-tema="claro"] .clause span { color: #9a7526; }
:root[data-tema="claro"] .clause::before {
  background: linear-gradient(90deg, #b98a2f, transparent);
}
/* Las cláusulas dentro de bandas siempre oscuras conservan el oro brillante */
:root[data-tema="claro"] .page-hero .clause span,
:root[data-tema="claro"] .resolve .clause span { color: var(--gold); }
:root[data-tema="claro"] .page-hero .clause::before,
:root[data-tema="claro"] .resolve .clause::before {
  background: linear-gradient(90deg, var(--gold), transparent);
}
/* Header un punto más opaco sobre contenido claro */
:root[data-tema="claro"] .site-header { background: rgba(4, 9, 26, 0.9); }
:root[data-tema="claro"]::before { opacity: 0.03; }
:root[data-tema="claro"] .lema-eyebrow { color: #e9c777; }

/* Tarjetas sobre fondo claro */
:root[data-tema="claro"] .pillar,
:root[data-tema="claro"] .paso,
:root[data-tema="claro"] .form-card,
:root[data-tema="claro"] .doc-card,
:root[data-tema="claro"] .faq details {
  background: #ffffff;
  border-color: #d7e3ec;
  box-shadow: 0 8px 26px rgba(16, 33, 75, 0.07);
}
:root[data-tema="claro"] .pillar p,
:root[data-tema="claro"] .paso p,
:root[data-tema="claro"] .form-card p,
:root[data-tema="claro"] .doc-card p,
:root[data-tema="claro"] .faq details p { color: #51617f; }
:root[data-tema="claro"] .pillar:hover,
:root[data-tema="claro"] .paso:hover,
:root[data-tema="claro"] .form-card:hover,
:root[data-tema="claro"] .doc-card:hover { border-color: rgba(23, 112, 138, 0.5); box-shadow: 0 14px 34px rgba(16, 33, 75, 0.12); }
:root[data-tema="claro"] .pillar-mark,
:root[data-tema="claro"] .paso-num,
:root[data-tema="claro"] .doc-tag { color: #17708a; }

/* Placards de foros (la foto, el vitral y la sigla no cambian) */
:root[data-tema="claro"] .placard {
  background: #ffffff;
  border-color: #d7e3ec;
  box-shadow: 0 8px 26px rgba(16, 33, 75, 0.09);
}
:root[data-tema="claro"] .placard:hover,
:root[data-tema="claro"] .placard.expandido {
  border-color: rgba(23, 112, 138, 0.55);
  box-shadow: 0 18px 44px rgba(16, 33, 75, 0.16);
}
:root[data-tema="claro"] .placard::after {
  background:
    linear-gradient(#17708a, #17708a) no-repeat left 10px top 10px / 16px 2px,
    linear-gradient(#17708a, #17708a) no-repeat left 10px top 10px / 2px 16px,
    linear-gradient(#17708a, #17708a) no-repeat right 10px top 10px / 16px 2px,
    linear-gradient(#17708a, #17708a) no-repeat right 10px top 10px / 2px 16px,
    linear-gradient(#17708a, #17708a) no-repeat left 10px bottom 10px / 16px 2px,
    linear-gradient(#17708a, #17708a) no-repeat left 10px bottom 10px / 2px 16px,
    linear-gradient(#17708a, #17708a) no-repeat right 10px bottom 10px / 16px 2px,
    linear-gradient(#17708a, #17708a) no-repeat right 10px bottom 10px / 2px 16px;
}
/* El nombre del foro vive sobre la foto: sigue claro en ambos temas */
:root[data-tema="claro"] .placard-nombre { color: var(--ice); }
:root[data-tema="claro"] .placard-topicos { border-top-color: #d7e3ec; }
:root[data-tema="claro"] .placard-topicos li { color: #51617f; }
:root[data-tema="claro"] .placard-topicos .topico-num { color: #17708a; }
/* El panel expandido vive sobre su foto: conserva el vidrio oscuro
   y el texto claro también en tema claro */
:root[data-tema="claro"] .placard.expandido .placard-nombre { color: var(--ice); }
:root[data-tema="claro"] .placard.expandido .placard-topicos li {
  background: rgba(4, 9, 26, 0.62);
  border-color: rgba(65, 201, 232, 0.3);
  color: #d5e3f1;
}
:root[data-tema="claro"] .placard.expandido .placard-topicos .topico-num { color: var(--cyan); }

/* Botones sobre fondo claro (el primario cian funciona igual) */
:root[data-tema="claro"] .btn-outline {
  color: #17708a;
  border-color: rgba(23, 112, 138, 0.55);
}
:root[data-tema="claro"] .btn-outline:hover {
  background: rgba(23, 112, 138, 0.08);
  border-color: #17708a;
  box-shadow: none;
}
:root[data-tema="claro"] .btn-disabled {
  color: #6e82a3;
  border-color: #c2d4e0;
}

/* FAQ */
:root[data-tema="claro"] .faq summary { color: #10214b; }
:root[data-tema="claro"] .faq details:hover { border-color: rgba(23, 112, 138, 0.4); }
:root[data-tema="claro"] .faq details:hover summary { color: #17708a; }
:root[data-tema="claro"] .faq details[open] { border-color: rgba(23, 112, 138, 0.55); }
:root[data-tema="claro"] .faq summary::after { color: #17708a; }

/* Aviso dorado */
:root[data-tema="claro"] .aviso {
  background: #f8f0da;
  border-color: rgba(185, 138, 47, 0.45);
  border-left-color: #b98a2f;
  color: #6b5a2a;
}
:root[data-tema="claro"] .aviso strong { color: #55461c; }

/* Créditos fotográficos */
:root[data-tema="claro"] .creditos-fotos {
  color: #6e82a3;
  border-top-color: #d7e3ec;
}
:root[data-tema="claro"] .creditos-fotos strong { color: #51617f; }
:root[data-tema="claro"] .creditos-fotos a { color: #6e82a3; }
:root[data-tema="claro"] .creditos-fotos a:hover { color: #17708a; }

/* --- Tema claro: piezas nuevas ---------------------------------------- */
/* Los paneles del procedimiento viven sobre foto: colores constantes,
   solo el borde y la sombra se adaptan al fondo claro */
:root[data-tema="claro"] .ruta-paso {
  border-color: #d7e3ec;
  box-shadow: 0 8px 26px rgba(16, 33, 75, 0.09);
}
:root[data-tema="claro"] .ruta-paso:is(:hover, :focus-visible, .activa) {
  border-color: rgba(23, 112, 138, 0.55);
}
:root[data-tema="claro"] .placard::before {
  background: radial-gradient(
    380px circle at var(--sx, 50%) var(--sy, 50%),
    rgba(23, 112, 138, 0.12),
    transparent 65%
  );
}