/* =========================================
   PROJECT DOSSIER — responsive
   ========================================= */
@media (max-width: 1020px) {
  .dossier-hero__grid {
    grid-template-columns: 1fr;
    gap: 46px;
    min-height: 0;
  }

  .dossier-target {
    max-width: 620px;
  }

  .dossier-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .dossier-index__sticky {
    position: static;
  }

  .dossier-index nav {
    grid-template-columns: repeat(5, auto);
    gap: 12px;
    overflow-x: auto;
  }

  .dossier-index nav a {
    grid-template-columns: auto 1fr;
    white-space: nowrap;
  }

  .dossier-index__back {
    display: none;
  }

  .dossier-story__grid,
  .dossier-method__intro,
  .dossier-participate__grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 720px) {
  .dossier-hero {
    padding-top: 110px;
  }

  .dossier-commandbar {
    grid-template-columns: 1fr auto;
  }

  .dossier-commandbar > span:nth-child(2) {
    display: none;
  }

  .dossier-hero__grid {
    padding: 48px 0 42px;
  }

  .dossier-hero h1 {
    font-size: clamp(2.8rem, 14vw, 4.6rem);
  }

  .dossier-register {
    grid-template-columns: 1fr 1fr;
  }

  .dossier-register div:nth-child(2) {
    border-right: 0;
  }

  .dossier-register div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--dossier-line);
  }

  .dossier-layout {
    padding-top: 64px;
    padding-bottom: 76px;
  }

  .dossier-index nav {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: max-content;
  }

  .dossier-section {
    padding-bottom: 76px;
  }

  .dossier-story__grid {
    padding-top: 22px;
  }

  .dossier-protocol li {
    grid-template-columns: 46px 1fr;
    gap: 12px;
    padding: 16px 0;
  }

  .dossier-protocol__mark {
    display: none;
  }

  .dossier-objective {
    grid-template-columns: 1fr;
  }

  .dossier-objective__metric,
  .dossier-objective__copy {
    min-height: 330px;
    padding: 26px;
  }

  .dossier-objective h2 {
    margin-top: 52px;
  }

  .dossier-objective__notice {
    grid-template-columns: 1fr;
  }

  .dossier-scope {
    padding: 0 20px 24px !important;
  }

  .dossier-scope__intro,
  .dossier-scope__grid {
    grid-template-columns: 1fr;
  }

  .dossier-footer__grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .dossier-footer__nav {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .dossier-register {
    grid-template-columns: 1fr;
  }

  .dossier-register div {
    border-right: 0;
    border-bottom: 1px solid var(--dossier-line);
  }

  .dossier-register div:last-child {
    border-bottom: 0;
  }

  .dossier-footer__rail span:nth-child(2) {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dossier-index nav a,
  .dossier-protocol li {
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}