body {
  background:
    linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.7)),
    url("https://images.unsplash.com/photo-1504280390367-361c6d9f38f4?auto=format&fit=crop&w=1920&q=80");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  height: 100vh;
}

.cover-container {
  max-width: 100%;
}

header {
  padding: 1rem 2rem;
  backdrop-filter: blur(8px);
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: 0 0 1.5rem 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.nav-masthead .nav-link {
  padding: 0.25rem 1rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  background-color: transparent;
  border-bottom: 0.2rem solid transparent;
  transition: all 0.3s ease;
}

.nav-masthead .nav-link:hover,
.nav-masthead .nav-link:focus {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.5);
}

.nav-masthead .nav-link.active {
  color: #fff;
  border-bottom-color: #198754;
}

.text-shadow {
  text-shadow: 0 4px 15px rgba(0, 0, 0, 0.6);
}

.hover-lift {
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4) !important;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
  opacity: 0.7;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.scroll-indicator:hover {
  opacity: 1;
}

.scroll-indicator i {
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.8);
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

@media (max-width: 768px) {
  header > div {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-masthead {
    margin-left: 0 !important;
  }

  body {
    background-attachment: scroll;
  }

  .scroll-indicator {
    bottom: 1rem;
  }

  .scroll-indicator i {
    font-size: 1.5rem;
  }
}