@media (max-width: 1023px) {
  .instagram-content-grid { grid-template-columns: repeat(2, 1fr); }
  .sns-metric-grid { grid-template-columns: repeat(3, 1fr); }
  .youtube-content-grid { grid-template-columns: repeat(2, 1fr); }
  .bic-metric-grid,
  .bic-strategy-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-grid,
  .insight-matrix,
  .experience-grid { grid-template-columns: repeat(2, 1fr); }

  .report-cover-grid,
  .shortform-plan { grid-template-columns: 1fr 1fr; }
  .brand-text {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .site-nav ul {
    gap: 18px;
  }

  .site-nav a {
    font-size: 12px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 520px;
  }

  .hero-content-backdrop {
    width: min(52vw, 520px);
  }

  .content-grid,
  .insight-grid,
  .project-facts {
    grid-template-columns: repeat(2, 1fr);
  }

  .cardnews-gallery-body {
    grid-template-columns: minmax(0, 1fr) 105px;
  }

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

  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .spoton-demo-grid {
    grid-template-columns: 0.75fr 1.25fr;
    gap: 54px;
  }

  .palette-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px 16px;
  }
}

@media (max-width: 900px) {
  .tourism-poster {
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    gap: 28px;
  }

  .tourism-poster-visual img,
  .tourism-poster-visual video {
    max-height: 450px;
  }

  .report-cover-grid,
  .shortform-plan,
  .character-hero,
  .rules-grid,
  .spoton-demo-grid {
    grid-template-columns: 1fr;
  }

  .spoton-demo-copy,
  .character-copy {
    max-width: 620px;
  }

  .character-motion-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .character-motion-card:last-child {
    grid-column: 1 / -1;
    width: calc(50% - 8px);
  }

  .phone-stage {
    margin-top: 20px;
  }

  .process-list li {
    grid-template-columns: 58px minmax(150px, 0.65fr) minmax(0, 1fr);
    gap: 20px;
  }
}

@media (max-width: 767px) {
  .sns-title-row,
  .sns-channel-grid,
  .sns-analysis-grid { grid-template-columns: 1fr; }
  .sns-sync-state { width: fit-content; margin-top: 24px; }
  .sns-channel-card { min-height: 280px; }
  .sns-metric-grid { grid-template-columns: repeat(2, 1fr); }
  .sns-metric-card { min-height: 165px; }
  .sns-metric-card:last-child { grid-column: 1 / -1; }
  .content-performance-head { align-items: flex-start; flex-direction: column; }
  .content-performance-head > p { text-align: left; }
  .platform-section-aside { align-items: flex-start; }
  .sns-guide-grid { grid-template-columns: 1fr; }
  .shortform-video-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(10px, 2.4vw, 18px);
  }
  .report-hub { min-height: auto; }
  .report-chooser,
  .bic-split-grid,
  .bic-award-grid,
  .bic-case-note { grid-template-columns: 1fr; }
  .report-choice { min-height: 260px; }
  .report-switcher .container { grid-template-columns: 1fr auto; gap: 4px 14px; padding-block: 8px; }
  .report-switcher span { grid-column: 1; text-align: left; }
  .report-switcher strong { grid-column: 1 / -1; }
  .report-switcher button:last-child { grid-column: 2; grid-row: 1 / span 2; }
  .bic-metric-grid,
  .bic-strategy-grid { grid-template-columns: 1fr; }
  .bic-facts-strip { align-items: flex-start; flex-direction: column; gap: 14px; }
  .bic-measure-list > div,
  .bic-disclaimer { grid-template-columns: 1fr; gap: 8px; }
  .tourism-poster {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0;
  }

  .tourism-poster-visual {
    width: min(100%, 380px);
    margin: clamp(24px, 6vw, 38px) auto 0;
  }

  .tourism-poster-visual img,
  .tourism-poster-visual video {
    height: auto;
    object-fit: contain;
  }

  .tourism-poster-copy {
    gap: 32px;
    padding: clamp(28px, 7vw, 40px);
  }

  .report-cover-grid,
  .report-thesis,
  .maple-summary,
  .signal-risk,
  .shortform-plan,
  .evidence-note,
  .report-conclusion { grid-template-columns: 1fr; }

  .report-cover h1 {
    font-size: clamp(48px, 15vw, 72px);
    line-height: 0.94;
  }
  .report-cover-copy dl,
  .case-facts { grid-template-columns: 1fr; }
  .problem-grid,
  .insight-matrix,
  .experience-grid { grid-template-columns: 1fr; }
  .problem-grid article,
  .insight-matrix article,
  .experience-grid article { min-height: 205px; }
  .report-local-nav .container { padding-inline: 0; }
  .route-timeline li { grid-template-columns: 1fr; gap: 8px; }
  .do-dont { grid-template-columns: 1fr; }
  .maple-title { padding-block: 36px; }
  .script-screen { min-height: 180px; }
  body {
    font-size: 15px;
  }

  .header-inner {
    min-height: 68px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: 68px 0 auto;
    height: calc(100vh - 68px);
    height: calc(100dvh - 68px);
    overflow-y: auto;
    overscroll-behavior: contain;
    visibility: hidden;
    background: var(--color-white);
    opacity: 0;
    transform: translateY(-10px);
    transition: visibility var(--ease), opacity var(--ease), transform var(--ease);
  }

  .site-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .site-nav ul {
    display: block;
    padding: 24px var(--gutter);
  }

  .site-nav a {
    padding: 18px 0;
    font-size: clamp(26px, 9vw, 40px);
    letter-spacing: -0.04em;
    border-bottom: 1px solid var(--color-line);
  }

  .site-nav a::after {
    right: auto;
    bottom: 12px;
    width: 42px;
  }

  .hero {
    min-height: calc(100svh - 68px);
    align-items: center;
  }

  .hero::after {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.86) 48%, var(--color-white) 100%);
  }

  .hero-content-backdrop {
    top: 24px;
    right: -12vw;
    bottom: 18%;
    width: 78vw;
    border-radius: 32px 0 0 32px;
    transform: rotate(2deg);
  }

  .hero-title {
    font-size: clamp(48px, 17vw, 78px);
    line-height: 0.9;
  }

  .hero-index {
    display: none;
  }

  .page-title {
    font-size: clamp(40px, 12vw, 58px);
    line-height: 1;
  }

  .section-title {
    font-size: clamp(30px, 11vw, 48px);
  }

  .eyebrow {
    align-items: flex-start;
    font-size: 10px;
    line-height: 1.5;
  }

  .eyebrow::before {
    flex: 0 0 22px;
    margin-top: 0.65em;
  }

  .section-head {
    display: block;
  }

  .section-description {
    margin-top: 18px;
  }

  .archive-grid,
  .content-grid,
  .insight-grid,
  .project-facts,
  .metric-grid,
  .footer-top,
  .footer-meta {
    grid-template-columns: 1fr;
  }

  .brand-intro-grid,
  .rules-grid,
  .dont-grid,
  .background-grid {
    grid-template-columns: 1fr;
  }

  .character-hero { grid-template-columns: 1fr; }
  .character-selector { grid-template-columns: 1fr; }
  .character-motion-grid { grid-template-columns: 1fr; }
  .character-motion-card:last-child { grid-column: auto; width: auto; }
  .character-portrait { min-height: 0; }
  .character-copy h2 { font-size: clamp(68px, 24vw, 110px); }
  .turnaround-placeholder { min-height: 390px; padding: 32px 18px; }
  .turnaround-slots { inset: 24px 12px; gap: 8px; }
  .turnaround-slots i { width: 78%; height: 58%; }

  .brand-logo-stage {
    min-height: 300px;
  }

  .brand-guide-meta div {
    display: none;
  }

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

  .palette-swatch {
    aspect-ratio: 1.35;
  }

  .rule-card {
    min-height: 300px;
  }

  .dont-card {
    min-height: 220px;
  }

  .archive-link {
    min-height: 230px;
    border-right: 0;
  }

  .content-grid {
    gap: 36px 0;
  }

  .content-thumb {
    aspect-ratio: 5 / 4;
  }

  .cardnews-gallery-head,
  .content-subhead {
    display: block;
  }

  .cardnews-counter {
    margin-top: 20px;
  }

  .cardnews-gallery-body {
    grid-template-columns: 1fr;
  }

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

  .cardnews-thumbnail:hover,
  .cardnews-thumbnail:focus-visible,
  .cardnews-thumbnail.is-active {
    transform: translateY(-3px);
  }

  .carousel-button {
    width: 44px;
    height: 44px;
  }

  .carousel-button--prev { left: 10px; }
  .carousel-button--next { right: 10px; }

  .content-subhead p {
    margin-top: 8px;
  }

  .footer-top {
    gap: 46px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }

  .process-list li {
    grid-template-columns: 42px 1fr;
    gap: 12px;
  }

  .process-list p {
    grid-column: 2;
  }

  .project-visual::before {
    top: 16%;
    right: -18%;
    width: 80%;
  }

  .project-visual-title {
    max-width: 100%;
    font-size: clamp(42px, 15vw, 72px);
    line-height: 0.96;
  }

  .spoton-intro-grid,
  .spoton-demo-grid {
    grid-template-columns: 1fr;
  }

  .spoton-intro-aside {
    max-width: none;
  }

  .spoton-demo::before {
    display: none;
  }

  .spoton-demo-copy {
    max-width: 520px;
  }

  .phone-stage {
    margin-top: 8px;
  }

  .phone-shell {
    width: min(100%, 390px);
    border-radius: 46px;
  }

  .phone-screen {
    border-radius: 36px;
  }

  .phone-stage::before {
    right: -14%;
  }

  .phone-stage::after {
    left: -8%;
  }
}

@media (max-width: 420px) {
  .shortform-video-grid { grid-template-columns: 1fr; }
  .instagram-content-grid { grid-template-columns: 1fr; }
  .sns-metric-grid,
  .youtube-content-grid { grid-template-columns: 1fr; }
  .sns-metric-card:last-child { grid-column: auto; }
  .channel-card-footer { align-items: flex-start; flex-direction: column; }
  .sns-panel { min-height: auto; }
  .sns-history-chart { height: 190px; gap: 4px; margin-bottom: 24px; }
  .brand-text {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .metric-card,
  .insight-card,
  .fact-card {
    padding: 22px;
  }

  .chart {
    gap: 7px;
  }

  .empty-note {
    padding: 36px 22px;
  }

  .palette-grid {
    grid-template-columns: 1fr;
  }

  .guide-section-heading {
    flex-wrap: wrap;
    align-items: center;
  }

  .guide-section-heading span:last-child {
    width: 100%;
    padding-left: 38px;
  }

  .minimum-size-row {
    grid-template-columns: 1fr;
    gap: 14px;
    padding-block: 22px;
  }

  .minimum-size-row i {
    width: 70%;
    height: 1px;
    margin-inline: auto;
  }

  .character-profile div,
  .planning-board dl > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .case-label,
  .maple-title,
  .panel-head {
    flex-wrap: wrap;
  }

  .maple-title h2 {
    font-size: clamp(34px, 11vw, 46px);
  }

  .archive-name {
    font-size: clamp(30px, 12vw, 46px);
  }

  .spoton-intro-aside {
    padding: 22px;
  }

  .spoton-controls {
    display: grid;
  }

  .preview-control {
    justify-content: center;
  }

  .hero-title {
    font-size: clamp(44px, 13vw, 62px);
    line-height: 1.12;
  }

  .archive-link:nth-child(2) .archive-name {
    font-size: clamp(28px, 9vw, 38px);
  }

  .character-copy h2 {
    font-size: clamp(52px, 16vw, 72px);
    line-height: 1;
  }

  .character-hero--bukangi .character-copy h2 {
    font-size: clamp(46px, 14vw, 68px);
  }
}

@media (max-width: 767px) {
  .shortform-video-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }
  .shortform-video-grid .content-thumb--video {
    aspect-ratio: 1080 / 1934;
  }
  .shortform-video-grid .content-thumb--video video {
    width: 100%;
    height: 100%;
    object-fit: contain;
  }
}
/* Keep report navigation below the current report, with destinations on the right. */
.report-switcher .container {
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px 18px;
  padding-block: 12px;
}
.report-switcher span {
  grid-column: 1;
  grid-row: 1;
  text-align: left;
}
.report-switcher strong {
  grid-column: 2 / -1;
  grid-row: 1;
  min-width: 0;
}
.report-switcher button[data-report-back] {
  grid-column: 1 / 3;
  grid-row: 2;
  justify-self: start;
}
.report-switcher button[data-report-open]:last-child {
  grid-column: 3;
  grid-row: 2;
  justify-self: end;
  text-align: right;
}