.about-hero {
  position: relative;
  padding: 5.5rem 0 3.5rem;
  overflow: hidden;
}

.about-hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 380px at 20% 20%, rgba(99, 102, 241, 0.22), transparent 60%),
    radial-gradient(900px 420px at 85% 35%, rgba(16, 185, 129, 0.14), transparent 60%),
    radial-gradient(700px 320px at 55% 80%, rgba(245, 158, 11, 0.12), transparent 65%),
    linear-gradient(180deg, rgba(11, 18, 32, 0.25), transparent 30%),
    linear-gradient(180deg, var(--bg-deep), var(--bg));
  filter: saturate(1.05);
}

/* destellos CSS-only; se desactivan con prefers-reduced-motion */
.about-hero__bg::before,
.about-hero__bg::after {
  content: '';
  position: absolute;
  /* -35%: el elemento tiene que ser más grande que el contenedor para que
     los círculos de brillo no queden cortados al rotar 8 grados */
  inset: -35%;
  background:
    radial-gradient(circle at 12% 30%, rgba(255, 255, 255, 0.12), transparent 32%),
    radial-gradient(circle at 72% 22%, rgba(255, 255, 255, 0.09), transparent 34%),
    radial-gradient(circle at 40% 78%, rgba(255, 255, 255, 0.08), transparent 36%);
  opacity: 0.5;
  transform: rotate(8deg);
  animation: aboutFloat 12s var(--ease-premium) infinite alternate;
}

.about-hero__bg::after {
  opacity: 0.35;
  transform: rotate(-6deg);
  /* 16 s: ritmo distinto al ::before para que nunca se sincronicen */
  animation-duration: 16s;
}

/* movimiento muy lento (12–16 s) para que el brillo no distraiga del contenido principal */
@keyframes aboutFloat {
  from { transform: translate3d(-1.2%, -0.6%, 0) rotate(8deg); }
  to   { transform: translate3d(1.2%, 0.6%, 0) rotate(10deg); }
}

.about-hero__eyebrow {
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.78rem;
  /* desacoplado del acento: el admin cambia --accent y este texto no se mueve */
  color: var(--muted);
  margin-bottom: 0.55rem;
}

.about-hero__title {
  font-size: clamp(2rem, 4vw, 3.15rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

/* -webkit-background-clip necesario para Safari; background-clip estándar para el resto */
.about-hero__accent {
  display: inline-block;
  background: linear-gradient(90deg, var(--accent), #f59e0b);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.about-hero__sub {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: 48rem;
}

.about-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.about-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 0.92rem;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
}

.about-chip i {
  color: var(--accent);
}

.about-hero__card {
  position: relative;
  border-radius: calc(var(--radius-lg) + 6px);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(99, 102, 241, 0.18);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.about-hero__sparkles {
  position: absolute;
  inset: -1px;
  pointer-events: none;
  background:
    radial-gradient(6px 6px at 18% 22%, rgba(255, 255, 255, 0.55), transparent 60%),
    radial-gradient(7px 7px at 62% 18%, rgba(255, 255, 255, 0.45), transparent 60%),
    radial-gradient(5px 5px at 78% 44%, rgba(255, 255, 255, 0.4), transparent 60%),
    radial-gradient(8px 8px at 30% 68%, rgba(255, 255, 255, 0.34), transparent 60%),
    radial-gradient(6px 6px at 86% 76%, rgba(255, 255, 255, 0.28), transparent 60%),
    radial-gradient(200px 140px at 10% 90%, rgba(99, 102, 241, 0.2), transparent 65%),
    radial-gradient(260px 180px at 95% 10%, rgba(16, 185, 129, 0.14), transparent 70%);
  opacity: 0.9;
  filter: blur(0.15px);
  animation: aboutSparkles 7.5s linear infinite;
}

/* 7.5 s: los destellos se mueven más rápido que el fondo para que el efecto de profundidad sea creíble */
@keyframes aboutSparkles {
  0%   { transform: translate3d(0, 0, 0); opacity: 0.85; }
  50%  { transform: translate3d(0.6%, -0.8%, 0); opacity: 1; }
  100% { transform: translate3d(0, 0, 0); opacity: 0.85; }
}

.about-hero__card-inner {
  position: relative;
  padding: 1.25rem 1.2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: calc(var(--radius-lg) + 2px);
  margin: 0.75rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.about-stat {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 0.85rem;
  padding: 0.85rem 0.25rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
}

.about-stat:last-child {
  border-bottom: 0;
  padding-bottom: 0.25rem;
}

.about-stat i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: rgba(99, 102, 241, 0.14);
  color: var(--accent);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.2);
}

.about-stat strong {
  display: block;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.about-stat span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 0.1rem;
}

.about-content {
  position: relative;
}

.about-card {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

/* capa decorativa de brillo índigo en la esquina superior izquierda de cada card */
.about-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  background: radial-gradient(260px 160px at 15% 20%, rgba(99, 102, 241, 0.16), transparent 60%);
  opacity: 0.7;
  pointer-events: none;
}

.about-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.28);
  box-shadow: 0 20px 52px rgba(0, 0, 0, 0.34);
}

.about-card__title {
  position: relative;
  margin-bottom: 0.75rem;
  font-weight: 800;
  width: fit-content;
}

.about-card__title::after {
  content: '';
  display: block;
  width: 100%;
  height: 3px;
  border-radius: 999px;
  margin-top: 0.55rem;
  background: linear-gradient(90deg, var(--accent), rgba(245, 158, 11, 0.9));
  opacity: 0.9;
}

/* la card wide lleva brillo en dos esquinas para compensar el mayor ancho */
.about-card--wide::before {
  background:
    radial-gradient(380px 220px at 20% 20%, rgba(99, 102, 241, 0.18), transparent 60%),
    radial-gradient(380px 220px at 80% 80%, rgba(16, 185, 129, 0.1), transparent 60%);
}

.about-cta {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(245, 158, 11, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.22);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  box-shadow: var(--shadow-soft);
}

.about-btn-secondary {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

:root[data-theme="light"] .about-btn-secondary {
  border-color: rgba(15, 23, 42, 0.22);
  color: var(--text);
  background: rgba(255, 255, 255, 0.65);
}

:root[data-theme="light"] .about-btn-secondary:hover {
  border-color: rgba(79, 70, 229, 0.28);
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.12);
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .about-hero__bg::before,
  .about-hero__bg::after,
  .about-hero__sparkles {
    animation: none !important;
  }

  .about-card:hover {
    transform: none;
  }
}