/* ============================================================
   Xingchen Network - Responsive Styles
   ============================================================ */

/* === Tablet (max-width: 1024px) === */
@media (max-width: 1024px) {
  .features-grid,
  .pricing-grid {
    grid-template-columns: 1fr 1fr;
  }

  .map-container {
    grid-template-columns: 1fr;
  }

  .map-visual {
    max-height: 400px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-stats {
    gap: 2.5rem;
  }

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

/* === Mobile (max-width: 768px) === */
@media (max-width: 768px) {
  /* Navigation */
  .nav-links {
    display: none;
  }

  .top-nav {
    padding: 0.75rem 1rem;
  }

  /* Hero */
  .hero-section {
    padding: 6rem 1.5rem 3rem;
    min-height: auto;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
  }

  .hero-scroll-hint {
    display: none;
  }

  .hero-orb-1 { width: 300px; height: 300px; }
  .hero-orb-2 { width: 250px; height: 250px; }
  .hero-orb-3 { width: 200px; height: 200px; }

  /* Sections */
  .section {
    padding: 4rem 1.5rem;
  }

  .section-header {
    margin-bottom: 2.5rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-desc {
    font-size: 1rem;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  /* Map */
  .region-list {
    grid-template-columns: 1fr;
  }

  .region-item {
    padding: 0.5rem 0.75rem;
  }

  /* Pricing */
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .pricing-card {
    padding: 2rem 1.5rem;
  }

  .pricing-amount {
    font-size: 2.75rem;
  }

  /* CTA */
  .cta-section {
    padding: 4rem 1.5rem;
  }

  .cta-box {
    padding: 2.5rem 1.5rem;
    border-radius: 20px;
  }

  .cta-box h2 {
    font-size: 1.5rem;
  }

  .cta-box p {
    font-size: 1rem;
  }

  /* Footer */
  .site-footer {
    padding: 3rem 1.5rem 1.5rem;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  /* Auth Layout */
  .auth-left {
    display: none;
  }

  .auth-right {
    width: 100%;
    border-left: none;
    padding: 2rem 1.5rem;
  }

  /* Dashboard / Admin */
  .sidebar {
    transform: translateX(-100%);
    position: fixed;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .topbar {
    padding: 0.75rem 1rem;
  }

  .page-title {
    font-size: 1.1rem;
  }

  .content-area {
    padding: 1rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-card {
    padding: 1rem;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
  }

  .card-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .search-box input {
    width: 100%;
  }

  .filter-select {
    width: 100%;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* Table */
  table {
    font-size: 0.85rem;
  }

  th, td {
    padding: 0.75rem 0.5rem;
  }

  .user-cell {
    gap: 0.5rem;
  }

  .user-cell-avatar {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
  }

  .actions {
    flex-wrap: wrap;
  }

  .btn-icon {
    width: 28px;
    height: 28px;
  }

  /* Pagination */
  .pagination {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  .pagination-btns {
    flex-wrap: wrap;
    justify-content: center;
  }

  /* Modal */
  .modal {
    margin: 1rem;
    max-height: calc(100vh - 2rem);
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding: 1rem;
  }
}

/* === Small Mobile (max-width: 480px) === */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.875rem;
  }

  .hero-badge {
    font-size: 0.75rem;
    padding: 0.375rem 1rem;
  }

  .hero-btns {
    flex-direction: column;
    width: 100%;
  }

  .hero-btns .btn {
    width: 100%;
  }

  .stat-val {
    font-size: 1.5rem;
  }

  .feature-card h3 {
    font-size: 1rem;
  }

  .pricing-card {
    padding: 1.5rem 1.25rem;
  }

  .cta-box {
    padding: 2rem 1.25rem;
  }

  .auth-right {
    padding: 1.5rem 1.25rem;
  }

  .form-header h2 {
    font-size: 1.25rem;
  }
}