/* Responsive — Luna AI (mobile-first breakpoints) */

/* ---------- Tablet (max 1024px) ---------- */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.75rem;
  }

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

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

  .interfaces-grid > :last-child {
    grid-column: 1 / -1;
    max-width: 500px;
    margin: 0 auto;
  }

  .guide-content {
    padding: var(--spacing-xl) var(--spacing-lg);
  }
}

/* ---------- Mobile landscape / small tablet (max 768px) ---------- */
@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }

  .section {
    padding: var(--spacing-3xl) 0;
  }

  /* Navbar mobile */
  .navbar-links {
    display: none;
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.98);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    gap: 0;
  }

  .navbar-links.open {
    display: flex;
  }

  .navbar-links li {
    width: 100%;
  }

  .navbar-links a,
  .navbar-links .btn {
    display: block;
    padding: 14px var(--spacing-lg);
    width: 100%;
    text-align: left;
    border-radius: 0;
  }

  .navbar-toggle {
    display: block;
  }

  /* Hero mobile */
  .hero .container {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-xl);
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  /* Steps */
  .steps {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .steps::before {
    display: none;
  }

  /* Interfaces */
  .interfaces-grid {
    grid-template-columns: 1fr;
  }

  .interfaces-grid > :last-child {
    max-width: none;
  }

  /* Footer */
  .footer .container {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  /* Sidebar mobile */
  .sidebar {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    bottom: auto;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    transition: max-height 0.3s ease;
    z-index: 50;
  }

  .sidebar.open {
    max-height: 60vh;
    overflow-y: auto;
  }

  .sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    z-index: 51;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    border: none;
    border-bottom: 1px solid var(--color-border);
    width: 100%;
  }

  .sidebar.open + .sidebar-toggle + .guide-content,
  .guide-content {
    margin-left: 0;
    padding-top: calc(var(--spacing-2xl) + 44px);
  }

  .guide-section h2 {
    font-size: 1.5rem;
  }
}

/* ---------- Mobile portrait (max 480px) ---------- */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero h1 {
    font-size: 2rem;
  }

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

  .btn {
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .chat-mock {
    max-width: 100%;
  }

  .glass-card {
    padding: var(--spacing-lg);
  }

  .guide-content {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .command-table {
    font-size: 0.8rem;
  }

  .command-table td:first-child {
    font-size: 0.75rem;
  }
}