.navbar {
  background: rgba(255, 255, 255, .94);
}

.portal-hero {
  position: relative;
  padding: 116px 0 64px;
  overflow: hidden;
  background: #10222a;
  color: #fff;
}

.portal-hero::before,
.portal-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.portal-hero::before {
  background: url("../images/hero-race.jpg") center/cover;
  filter: saturate(.82) contrast(.92);
  transform: scale(1.02);
}

.portal-hero::after {
  background:
    linear-gradient(90deg, rgba(7, 17, 31, .78), rgba(31, 43, 48, .58) 54%, rgba(56, 62, 66, .36)),
    linear-gradient(180deg, rgba(7, 17, 31, .18), rgba(7, 17, 31, .08));
}

.portal-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.portal-hero h1 {
  max-width: 800px;
  margin: 0 0 16px;
  font-size: clamp(2.3rem, 4vw, 4.8rem);
  line-height: .96;
}

.portal-hero p {
  max-width: 690px;
  color: rgba(255, 255, 255, .84);
  font-size: 1.15rem;
}

.portal-section {
  padding: 40px 0 72px;
  background: var(--bg);
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.portal-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 12px;
  min-height: 250px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-soft);
  box-shadow: 0 10px 30px rgba(15, 23, 42, .05);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.portal-card:hover {
  border-color: rgba(112, 192, 67, .55);
  box-shadow: 0 18px 46px rgba(15, 23, 42, .11);
  transform: translateY(-3px);
}

.portal-card.primary-card {
  border-color: rgba(112, 192, 67, .42);
}

.portal-card:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
}

.portal-card h2 {
  margin: 0;
  color: var(--dark);
  font-size: 1.7rem;
  line-height: 1.1;
}

.portal-card p {
  margin: 0;
  color: var(--muted);
}

.portal-card strong {
  align-self: end;
  color: var(--primary);
}

@media (max-width: 760px) {
  .portal-grid {
    grid-template-columns: 1fr;
  }

  .portal-hero {
    padding-top: 96px;
  }
}