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

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
  :root {
    --container-max-width: 100%;
  }

  .header__container {
    padding: 0 var(--space-4);
  }

  .nav__list {
    display: none;
  }

  .nav__list--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4);
    gap: var(--space-2);
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle--active .menu-toggle__bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .menu-toggle--active .menu-toggle__bar:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle--active .menu-toggle__bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .movie-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

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

  .detail-page__hero {
    grid-template-columns: 250px 1fr;
  }

  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobile (<768px) */
@media (max-width: 767px) {
  :root {
    --font-size-base: 14px;
    --font-size-lg: 16px;
  }

  .container {
    padding: 0 var(--space-3);
  }

  .header {
    height: 56px;
  }

  .header__logo {
    font-size: var(--font-size-lg);
  }

  .movie-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .movie-card__content {
    padding: var(--space-2);
  }

  .movie-card__title {
    font-size: var(--font-size-sm);
  }

  .movie-card__meta {
    font-size: var(--font-size-xs);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }

  .detail-page__hero {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .detail-page__poster {
    max-width: 250px;
    margin: 0 auto;
  }

  .detail-page__title {
    font-size: var(--font-size-2xl);
    text-align: center;
  }

  .detail-page__meta {
    justify-content: center;
  }

  .detail-page__actions {
    justify-content: center;
    flex-wrap: wrap;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .category-page__filters {
    flex-direction: column;
    align-items: stretch;
  }

  .category-page__sort {
    justify-content: space-between;
  }

  .tag-list {
    justify-content: center;
  }

  .view-toggle {
    display: none;
  }

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

  .related-grid .movie-card__image-wrapper {
    padding-top: 140%;
  }

  .page-nav {
    flex-direction: column;
  }

  .page-nav__item {
    max-width: 100%;
  }

  .page-nav__item:last-child {
    justify-content: flex-end;
  }

  .info-table__row {
    grid-template-columns: 100px 1fr;
  }

  .info-table__label {
    padding: var(--space-2) var(--space-3);
  }

  .info-table__value {
    padding: var(--space-2) var(--space-3);
  }

  .download-item {
    flex-direction: column;
    gap: var(--space-2);
    align-items: flex-start;
  }

  .download-item__links {
    width: 100%;
  }

  .download-item__links .btn {
    flex: 1;
  }

  .section__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}

/* Small Mobile (<480px) */
@media (max-width: 479px) {
  .movie-grid {
    grid-template-columns: 1fr;
  }

  .movie-card__image-wrapper {
    padding-top: 160%;
  }

  .pagination {
    flex-wrap: wrap;
  }

  .pagination__btn:nth-child(n+4):nth-child(-n+6) {
    display: none;
  }
}

/* Large Desktop (>=1400px) */
@media (min-width: 1400px) {
  :root {
    --container-max-width: 1320px;
  }

  .movie-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .movie-card:hover {
    transform: none;
  }

  .movie-card:active {
    transform: scale(0.98);
  }

  .btn:hover {
    transform: none;
  }

  .btn:active {
    transform: scale(0.98);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Dark mode (system preference) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-background: #0d1117;
    --color-surface: #161b22;
    --color-surface-hover: #21262d;
    --color-border: #30363d;
    --color-text-primary: #e6edf3;
    --color-text-secondary: #8b949e;
    --color-text-muted: #6e7681;
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .page-nav,
  .detail-page__actions,
  .download-section {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .movie-card {
    break-inside: avoid;
  }
}