/* Portada (index.html): hero con malla + gradiente suave */
.hero.hero-mesh {
  position: relative;
  overflow: hidden;
  background: transparent;
}
.hero.hero-mesh::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(232, 0, 29, 0.09), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  pointer-events: none;
  z-index: 0;
}
.hero.hero-mesh::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.018) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 62%);
  pointer-events: none;
  z-index: 0;
}
html[data-theme='dark'] .hero.hero-mesh::before {
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(232, 0, 29, 0.14), transparent 55%),
    linear-gradient(180deg, var(--bg2) 0%, var(--bg) 100%);
}
html[data-theme='dark'] .hero.hero-mesh::after {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
}
.hero.hero-mesh > * {
  position: relative;
  z-index: 1;
}

/* Tarjetas portada: micro-interacción (respeta prefers-reduced-motion en base.css) */
.main .card.av {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.main .card.av:hover,
.main .card.av:focus-within {
  transform: translateY(-3px);
  box-shadow: var(--sh2);
}
.main .card.av:focus-visible {
  outline: 2px solid var(--dg);
  outline-offset: 3px;
}

/* ── Hero portada: marca + icono PWA ── */
.hero {
  background: var(--bg);
  border-bottom: none;
  padding: 52px 40px 56px;
  text-align: center;
}

.hero.hero-mesh {
  border-bottom: none;
}

.hero-inner {
  max-width: 720px;
  margin: 0 auto;
}

.hero-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.hero-icon {
  width: 88px;
  height: 88px;
  border-radius: 22%;
  display: block;
  box-shadow:
    0 0 0 1px rgba(232, 0, 29, 0.14),
    0 12px 40px rgba(232, 0, 29, 0.2),
    0 4px 14px rgba(15, 20, 25, 0.08);
}

html[data-theme='dark'] .hero-icon {
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 12px 48px rgba(232, 0, 29, 0.28),
    0 4px 16px rgba(0, 0, 0, 0.35);
}

.hero-brand-title {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--tx);
  line-height: 1.2;
}

.hero-brand-os {
  color: var(--red);
  letter-spacing: 0.06em;
}

.hero-ey {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--dg-lt);
  border: 1px solid var(--dg-bd);
  color: var(--dg);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 99px;
  margin-bottom: 20px;
}

.hero-tl {
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 900;
  letter-spacing: -1.2px;
  margin: 0 auto 16px;
  max-width: 920px;
  line-height: 1.12;
  color: var(--tx);
}

.hero-tl span {
  color: var(--red);
}

.hero-sb {
  font-size: 16px;
  color: var(--mu);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.75;
}

.hero-strip {
  list-style: none;
  padding: 0;
  margin: 26px 0 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.hero-chip {
  font-size: 12px;
  font-weight: 600;
  color: var(--tx2);
  padding: 8px 14px;
  border-radius: 999px;
  border: none;
  background: var(--bg3);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

html[data-theme='dark'] .hero-chip {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--brd2);
  color: rgba(243, 244, 246, 0.88);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: var(--red);
  border-radius: 10px;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(232, 0, 29, 0.32);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease;
}

.hero-cta::after {
  content: '→';
  font-weight: 800;
  opacity: 0.92;
}

.hero-cta:hover {
  background: var(--rdk);
  box-shadow: 0 6px 22px rgba(232, 0, 29, 0.38);
  transform: translateY(-2px);
}

.hero-cta:focus-visible {
  outline: 2px solid var(--dg);
  outline-offset: 3px;
}

html[data-theme='dark'] .hero-cta {
  box-shadow: 0 4px 24px rgba(232, 0, 29, 0.45);
}

#cert-list {
  scroll-margin-top: 76px;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }

  .hero-inner {
    animation: hero-inner-in 0.72s ease-out both;
  }
  @keyframes hero-inner-in {
    from {
      opacity: 0;
      transform: translateY(14px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-cta:hover {
    transform: none;
  }
}

/* Portada: hero + main en una fila del grid (.page-body) */
.page-scroll > .page-body > .landing-content {
  min-height: 0;
}

.page-scroll > .page-body > .landing-content > .main {
  min-height: 0;
}

/* ── Portada: columnas y tarjetas (jerarquía clara sin líneas duras) ── */
.main .cols {
  gap: 24px;
}

.main .col {
  background: var(--bg);
  border: 1px solid var(--brd);
  border-radius: 14px;
  padding: 20px 20px 18px;
  box-shadow: var(--sh1);
  gap: 12px;
}

.main .shd {
  margin-bottom: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--brd);
}

.main .card {
  background: var(--bg2);
  border: 1px solid var(--brd);
  border-radius: 10px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.main .card.av:hover,
.main .card.av:focus-within {
  border-color: var(--brd2);
}

.main .card.lk {
  background: var(--bg3);
  border-color: var(--brd);
  opacity: 0.82;
}

.main .card.lk::before {
  background: var(--mu);
  opacity: 0.35;
}

.main .lo-st {
  border: none;
}

.main .clv,
.main .trd {
  border: none;
}

.main .cmt {
  border-top: 1px solid var(--brd);
  padding-top: 10px;
  margin-top: 6px;
}

.main .sx {
  color: var(--bg3);
}

html[data-theme='dark'] .main .col {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.28);
}

html[data-theme='dark'] .main .col {
  border-color: var(--brd);
}

html[data-theme='dark'] .main .card {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--brd);
}

html[data-theme='dark'] .main .card.lk {
  background: rgba(255, 255, 255, 0.02);
  opacity: 0.65;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme='light']) .main .col {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.28);
  }
  html:not([data-theme='light']) .main .col {
    border-color: var(--brd);
  }
  html:not([data-theme='light']) .main .card {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--brd);
  }
  html:not([data-theme='light']) .main .card.lk {
    background: rgba(255, 255, 255, 0.02);
    opacity: 0.65;
  }
}

@media (max-width: 620px) {
  .hero {
    padding: 40px 20px 44px;
  }
  .hero-icon {
    width: 72px;
    height: 72px;
  }
  .hero-brand {
    margin-bottom: 22px;
    gap: 10px;
  }
  .hero-brand-title {
    font-size: 14px;
  }
  .hero-strip {
    margin: 22px 0 20px;
    gap: 8px;
  }
  .hero-chip {
    font-size: 11px;
    padding: 7px 12px;
  }
  .hero-cta {
    width: 100%;
    max-width: 320px;
    padding: 14px 24px;
  }
}