/* ==========================================================================
   features.css — Sección de tarjetas "Tu refugio, blindado" (home)
   3 tarjetas con borde que se ilumina (glow de marca) en hover.
   ========================================================================== */

.features {
  padding: var(--space-xl) 0;
  background-color: var(--color-bg);
}

.features__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-2xl);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-cream);
  margin-bottom: var(--space-lg);
}

/* ---- Grid de tarjetas (mobile-first: 1 col -> 3 col) ---- */
.features__grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .features__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---- Tarjeta ---- */
.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 360px;
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 80% at 0% 0%, rgba(122, 38, 168, 0.12), transparent 60%),
    var(--color-surface);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

/* Borde con degradado de marca (se revela en hover mediante mask) */
.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-brand);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.feature-card:hover,
.feature-card:focus-within {
  transform: translateY(-4px);
  border-color: transparent;
  box-shadow:
    0 14px 44px rgba(82, 51, 254, 0.32),
    0 0 36px rgba(122, 38, 168, 0.28);
}

.feature-card:hover::before,
.feature-card:focus-within::before {
  opacity: 1;
}

/* ---- Contenido de la tarjeta ---- */
.feature-card__letter {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 2.75rem;
  line-height: 1;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.feature-card__name {
  margin-top: 1.75rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-cream);
}

.feature-card__text {
  margin-top: 0.85rem;
  color: var(--color-text-muted);
  font-size: var(--fs-base);
}

/* Icono al pie (empujado hacia abajo) */
.feature-card__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-top: auto;
  border-radius: 12px;
  background-color: var(--color-primary-soft);
  color: var(--color-cream);
}

.feature-card__icon svg {
  width: 22px;
  height: 22px;
}

/* ---- Accesibilidad: sin movimiento => sin desplazamiento ---- */
@media (prefers-reduced-motion: reduce) {
  .feature-card:hover,
  .feature-card:focus-within {
    transform: none;
  }
}