/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --section-padding: clamp(40px, 8vw, 80px);
    --container-padding: 16px;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  .stats-banner {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  /* Header mobile */
  .site-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--noir);
    display: flex;
    flex-direction: column;
    padding: 80px 32px 32px;
    transition: right 0.3s ease;
    z-index: 999;
  }
  .site-nav.open { right: 0; }
  .site-nav a {
    color: var(--white);
    font-size: 18px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    letter-spacing: var(--letter-spacing-subtitle);
    text-transform: uppercase;
  }

  .nav-toggle { display: flex; }

  .hero h1 { font-size: clamp(28px, 6vw, 40px); }
}

@media (max-width: 480px) {
  .btn {
    width: 100%;
    text-align: center;
  }

  .stats-banner {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}