.systems-section {
  padding: var(--spacing-xl) 2rem;
  position: relative;
}

.systems-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  justify-content: center;
}

.system-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  margin-bottom: 4rem;
}

.system-title {
  text-align: center;
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  letter-spacing: 0.05em;
}

.system-card {
  width: 400px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;

  display: flex;
  flex-direction: column;

  backdrop-filter: blur(12px);
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;

  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.02);
}

.system-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 162, 255, 0.45);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 162, 255, 0.25);
}

.card-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  opacity: 0.75;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.system-card:hover .card-image img {
  transform: scale(1.1);
}

.card-content {
  padding: 1.8rem 1.6rem 2rem;
  z-index: 1;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.card-description {
  font-size: 0.95rem;
  color: var(--secondary-text);
  line-height: 1.55;
  margin-bottom: 1.8rem;
}

.card-button {
  width: 100%;
  padding: 0.85rem 0;
  background: var(--primary-blue);
  color: var(--primary-text);
  font-size: 0.9rem;
  border-radius: 6px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
  margin-top: auto;
}

.card-button:hover {
  background: #0084d1;
  transform: translateY(-2px);
}

.search-more-container {
  flex-basis: 100%;
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

.search-more-btn {
  padding: 1rem 2.5rem;
  font-family: "Exo 2", sans-serif;
  font-size: 1rem;
  border-radius: 8px;
  border: 1px solid var(--primary-blue);
  background: rgba(255, 255, 255, 0.03);
  color: var(--primary-text);
  display: flex;
  align-items: center;
  gap: 1rem;
  backdrop-filter: blur(6px);
  transition: all 0.35s ease;
}

.search-more-btn:hover {
  transform: translateY(-3px);
  background: rgba(0, 162, 255, 0.12);
}

.search-more-btn:hover::before {
  left: 100%;
}

.search-more-btn:hover {
  background: rgba(0, 162, 255, 0.555);
  border-color: var(--primary-blue);
}

.search-more-btn:active {
  transform: translateY(-1px);
}

.btn-text {
  position: relative;
  z-index: 1;
}

.btn-icon {
  font-size: 1.3rem;
  transition: transform 0.3s ease;
}

.search-more-btn:hover .btn-icon {
  transform: translateX(4px);
}

.navbar.menu-open {
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: none;
  border-bottom-color: rgba(255, 255, 255, 0.15);
}

@media (max-width: 768px) {
  .systems-section {
    padding: 4rem 1.5rem;
  }

  .system-cards {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .card-image {
    height: 180px;
  }

  .card-content {
    padding: 1.5rem;
  }

  .search-more-btn {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

@media (max-width: 500px) {
  .systems-section {
    padding: 3rem 1rem;
  }

  .systems-container {
    width: 100%;
  }

  .system-cards {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding: 0 5%;
  }

  .system-card {
    border-radius: 6px;
    max-width: 100%;
  }

  .card-image {
    height: 160px;
  }

  .card-content {
    padding: 1.25rem;
  }

  .card-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    letter-spacing: 0.5px;
  }

  .card-description {
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
  }

  .card-button {
    padding: 0.6rem 1.5rem;
    font-size: 0.8rem;
    letter-spacing: 0.3px;
    width: 100%;
    text-align: center;
  }

  .search-more-container {
    margin-top: 2rem;
  }

  .search-more-btn {
    padding: 0.9rem 1.5rem;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    gap: 0.75rem;
    width: 100%;
    max-width: 100%;
    justify-content: center;
  }

  .btn-icon {
    font-size: 1.1rem;
  }
}