/* ============================================================
   VIETBCC — HOME PAGE
   ============================================================ */
.hero {
  position: relative;
  background: var(--gradient-hero);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding: var(--space-7) var(--space-4) var(--space-8);
  color: var(--color-white);
  overflow: hidden;
  text-align: center;
}

.hero-mascot {
  font-size: 4.5rem;
  animation: float 3.5s ease-in-out infinite;
}

.hero-title {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  margin-top: var(--space-4);
  text-shadow: 0 4px 0 rgba(0,0,0,0.08);
}

.hero-subtitle {
  margin-top: var(--space-3);
  font-size: var(--font-size-lg);
  opacity: 0.95;
  max-width: 46ch;
  margin-inline: auto;
}

.hero-actions {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

.hero-floaters {
  position: absolute;
  inset: 0;
  pointer-events: none;
  font-size: 2rem;
  opacity: 0.35;
}

.hero-floaters span {
  position: absolute;
  animation: float 5s ease-in-out infinite;
}

.hero-floaters span:nth-child(1) { top: 12%; left: 8%; animation-delay: 0s; }
.hero-floaters span:nth-child(2) { top: 20%; right: 10%; animation-delay: 1s; }
.hero-floaters span:nth-child(3) { bottom: 15%; left: 15%; animation-delay: 2s; }
.hero-floaters span:nth-child(4) { bottom: 25%; right: 18%; animation-delay: 1.5s; }

.section {
  padding: var(--space-7) 0;
}

.section-title {
  font-size: var(--font-size-xl);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--space-6);
}

.operation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .operation-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .hero-title { font-size: var(--font-size-3xl); }
}

.operation-card {
  text-align: center;
  cursor: pointer;
}

.operation-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-2);
}

.operation-name {
  font-weight: 700;
  font-size: var(--font-size-md);
}

.status-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(0, 184, 148, 0.15);
}