/*
 * Media queries — trois points de rupture :
 * - 992px  (tablette / bascule du menu en burger)
 * - 768px  (mobile large)
 * - 576px  (mobile étroit)
 */

@media (max-width: 992px) {
  .hero h1 {
    font-size: 3.5rem;
  }

  .nav-menu {
    position: fixed;
    right: -100%;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    background-color: var(--white);
    flex-direction: column;
    width: 80%;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.77, 0, 0.175, 1);
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    padding: var(--spacing-md) 0;
    z-index: 1000;
    gap: var(--spacing-sm);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-menu.active {
    right: 0;
  }

  .burger {
    display: flex;
  }

  .nav-link {
    font-size: 1.2rem;
    padding: 0.75rem 0;
    display: inline-block;
  }

  /* Menu fermé : masqué des lecteurs d'écran et retiré de l'ordre de tabulation,
     mais seulement une fois l'animation de fermeture terminée. */
  .nav-menu {
    visibility: hidden;
    transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1), visibility 0s linear 0.5s;
  }

  .nav-menu.active {
    visibility: visible;
    transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1), visibility 0s linear 0s;
  }

}

@media (max-width: 768px) {
  :root {
    --spacing-xl: 3rem;
    --spacing-lg: 2rem;
  }

  h1 { font-size: 2.8rem; }
  h2 { font-size: 2rem; }
  
  .hero {
    min-height: 60vh;
    padding: var(--spacing-xl) 0;
  }

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

  .hero p {
    font-size: 1.1rem;
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .hero::after {
    transform: rotate(-1deg);
    bottom: -30px;
  }
}

@media (max-width: 576px) {
  :root {
    --spacing-xl: 2.5rem;
    --spacing-lg: 1.5rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }

  .btn {
    width: 100%;
    margin-bottom: 1rem;
    text-align: center;
  }

  .btn-outline {
    margin-left: 0 !important;
  }
}