/* =============================================
   DATAFLOW – responsive.css
   All @media queries
   ============================================= */

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-card--large {
    grid-column: 1 / -1;
    grid-row: auto;
  }
  .big-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root { --section-py: 64px; }

  .nav-links           { display: none; }
  #btn-signup          { display: none !important; }

  #btn-login {
    padding: 7px 14px;
    font-size: 13px;
    background: var(--gradient-button);
    color: #fff;
    box-shadow: 0 2px 12px rgba(99,102,241,0.4);
    border: none;
  }

  .theme-toggle {
    width: 34px;
    height: 34px;
    font-size: 14px;
    border-radius: 8px;
  }

  .nav-hamburger { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(8,13,23,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    z-index: 10000;
    gap: 4px;
  }

  .nav-links.open .nav-link {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: 10px;
  }

  .nav-links.open .nav-mobile-cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 14px;
    margin-top: 8px;
    border-top: 1px solid var(--border);
  }

  [data-theme="light"] .nav-links.open {
    background: rgba(245,247,255,0.97);
  }

  .features-grid { grid-template-columns: 1fr; }
  .feature-card--large { grid-row: auto; grid-column: 1; }

  .hero-search-box { flex-direction: column; gap: 12px; }
  .btn-hero-search { width: 100%; justify-content: center; }

  .steps-line { display: none; }
  .step { flex-direction: column; gap: 16px; }
  .step-icon-wrap { display: none; }

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

  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .hero-stats { gap: 0; }
  .stat-item { padding: 12px 16px; }

  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn { justify-content: center; }
}

@media (max-width: 480px) {
  .big-stats-grid { grid-template-columns: 1fr; }
  .stat-divider { display: none; }
  .hero-stats { flex-direction: column; }
}