/* Mobile hardening for the partyroom case study.
   Loaded after case.css so these rules intentionally win. */

@media (max-width: 820px) {
  html {
    scroll-padding-top: 112px;
    overflow-x: clip;
  }

  body {
    width: 100%;
    min-width: 0;
    overflow-x: clip;
    padding-bottom: calc(72px + env(safe-area-inset-bottom));
  }

  body.menu-open,
  body.lightbox-open {
    overflow: hidden;
    touch-action: none;
  }

  main,
  section,
  .container,
  .hero-grid,
  .intro-grid,
  .tour-grid,
  .tour-aside,
  .photo-grid,
  .detail-gallery,
  .decision-grid,
  .deliverable-layout,
  .journey-grid,
  .explorer,
  .explorer-panel,
  .scope-layout,
  .package-grid,
  .workflow,
  .live-card,
  .quality-grid,
  .faq-layout,
  .cta-card,
  .footer-inner {
    min-width: 0;
    max-width: 100%;
  }

  img,
  picture,
  svg,
  canvas,
  iframe {
    max-width: 100%;
  }

  .container {
    width: 100%;
    padding-inline: 18px;
  }

  .topbar {
    padding-top: env(safe-area-inset-top);
  }

  .topbar-inner {
    height: 64px;
  }

  .brand {
    min-width: 0;
  }

  .brand b {
    white-space: nowrap;
  }

  .menu-toggle {
    display: grid;
    flex: 0 0 auto;
  }

  .topbar nav {
    position: fixed;
    z-index: 80;
    inset: calc(64px + env(safe-area-inset-top)) 12px auto;
    max-height: calc(100dvh - 88px - env(safe-area-inset-top));
    padding: 12px;
    display: none;
    grid-template-columns: 1fr;
    gap: 4px;
    overflow-y: auto;
    overscroll-behavior: contain;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 20px;
    background: rgba(11,16,23,.98);
    box-shadow: 0 22px 70px rgba(0,0,0,.38);
    backdrop-filter: blur(18px);
  }

  .topbar nav.open {
    display: grid;
  }

  .topbar nav a {
    width: 100%;
    min-height: 48px;
    padding: 0 14px;
    display: flex;
    align-items: center;
    border-radius: 12px;
  }

  .topbar nav .nav-live,
  .topbar nav .nav-cta {
    justify-content: center;
    margin-top: 4px;
  }

  .hero {
    min-height: 0;
    padding: calc(116px + env(safe-area-inset-top)) 0 48px;
    align-items: end;
  }

  .hero-image img {
    object-position: 58% center;
  }

  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(11,16,23,.98) 4%, rgba(11,16,23,.85) 54%, rgba(11,16,23,.42)),
      linear-gradient(90deg, rgba(11,16,23,.55), transparent 72%);
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero h1 {
    margin: 18px 0 16px;
    font-size: clamp(37px, 11vw, 54px);
    line-height: 1.01;
    letter-spacing: -.055em;
    overflow-wrap: anywhere;
  }

  .hero-copy > p:last-of-type {
    max-width: 100%;
    font-size: 15px;
    line-height: 1.72;
  }

  .hero-tags {
    gap: 7px;
  }

  .hero-tags li {
    font-size: 11px;
    padding: 8px 10px;
  }

  .hero .actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 9px;
  }

  .hero .actions .button {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    padding-inline: 12px;
    font-size: 13px;
    text-align: center;
  }

  .hero .actions .share-button {
    grid-column: 1 / -1;
  }

  .project-card {
    width: 100%;
    grid-template-columns: 1fr 1fr;
    padding: 8px 18px;
    border-radius: 22px;
  }

  .project-card .project-status {
    grid-column: 1 / -1;
  }

  .project-card dl {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .project-card dl > div {
    min-width: 0;
    padding: 14px 8px;
  }

  .project-card dd {
    overflow-wrap: anywhere;
  }

  .metrics {
    margin-top: 0;
  }

  .metric-grid {
    width: 100%;
    grid-template-columns: 1fr 1fr;
    border-radius: 0;
    border-inline: 0;
  }

  .metric-grid article {
    min-height: 112px;
    padding: 17px;
  }

  .metric-grid strong {
    font-size: clamp(22px, 7vw, 29px);
    overflow-wrap: anywhere;
  }

  .metric-grid span {
    font-size: 12px;
  }

  .metric-note {
    padding-inline: 18px;
    text-align: left;
  }

  .case-nav {
    top: calc(64px + env(safe-area-inset-top));
    overflow: hidden;
  }

  .case-nav-inner {
    width: 100%;
    padding: 0 12px 5px;
    display: flex;
    gap: 4px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .case-nav-inner::-webkit-scrollbar {
    display: none;
  }

  .case-nav a {
    flex: 0 0 auto;
    min-height: 42px;
    padding-inline: 12px;
    white-space: nowrap;
    font-size: 12px;
  }

  .reading-progress {
    position: absolute;
    inset: auto 0 0;
  }

  .section {
    padding: 64px 0;
  }

  .section-head {
    width: 100%;
    margin-bottom: 28px;
    gap: 11px;
  }

  .section-head h2 {
    font-size: clamp(34px, 9.5vw, 46px);
    line-height: 1.07;
    letter-spacing: -.05em;
    overflow-wrap: anywhere;
  }

  .section-head > p:last-child,
  .intro-copy p {
    font-size: 15px;
    line-height: 1.75;
  }

  .intro-grid,
  .brief-grid,
  .tour-grid,
  .tour-aside,
  .photo-grid,
  .detail-gallery,
  .decision-grid,
  .deliverable-layout,
  .journey-grid,
  .explorer-panel,
  .scope-layout,
  .package-grid,
  .workflow,
  .live-card,
  .quality-grid,
  .faq-layout {
    grid-template-columns: 1fr !important;
  }

  .intro-grid {
    gap: 12px;
  }

  .brief-grid,
  .decision-grid,
  .quality-grid,
  .package-grid,
  .journey-grid {
    gap: 12px;
  }

  .brief-grid article,
  .journey-grid article,
  .decision-grid article,
  .quality-grid article,
  .package-grid article {
    min-height: 0;
  }

  .journey-grid article {
    padding: 22px;
  }

  .journey-grid b {
    margin-top: 18px;
    padding-top: 0;
  }

  .viewer-shell {
    width: 100%;
    height: clamp(390px, 68svh, 560px);
    border-radius: 20px;
  }

  .viewer-badge {
    left: 12px;
    top: 12px;
    max-width: calc(100% - 24px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .tour-aside {
    gap: 12px;
  }

  .card {
    width: 100%;
    padding: 17px;
    border-radius: 20px;
  }

  .floorplan {
    width: 100%;
    aspect-ratio: 1.72 / 1;
  }

  .floorplan .marker {
    width: 28px;
    height: 28px;
    border-width: 2px;
  }

  .tour-benefits {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .photo-grid {
    gap: 12px;
  }

  .photo-grid .photo-wide,
  .photo-grid .photo-tall,
  .photo-grid .photo-partner,
  .photo-grid .photo-half {
    grid-column: 1 / -1 !important;
  }

  .photo-grid figure,
  .detail-card,
  .detail-card-wide,
  .detail-card-tall {
    width: 100%;
    border-radius: 20px;
  }

  .photo-grid .photo-landscape {
    aspect-ratio: 3 / 2;
  }

  .photo-grid .photo-portrait {
    aspect-ratio: 2 / 3;
  }

  .photo-grid figcaption {
    inset: auto 10px 10px;
    padding: 11px 12px;
    font-size: 12px;
  }

  .detail-heading {
    display: block;
  }

  .detail-note {
    margin: -10px 0 26px;
  }

  .detail-card,
  .detail-card-wide,
  .detail-card-tall {
    display: grid;
    grid-template-columns: 1fr !important;
    overflow: hidden;
  }

  .detail-card button,
  .detail-card-wide button,
  .detail-card-tall button {
    min-height: 0;
    aspect-ratio: 3 / 2;
  }

  .detail-card-tall button {
    aspect-ratio: 4 / 5;
  }

  .detail-copy {
    padding: 20px;
  }

  .tag-list {
    gap: 7px;
  }

  .tag-list li {
    font-size: 11px;
    padding: 7px 9px;
  }

  .explorer {
    border-radius: 22px;
  }

  .explorer-tabs {
    padding: 9px;
    gap: 5px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
  }

  .explorer-tabs::-webkit-scrollbar {
    display: none;
  }

  .explorer-tabs button {
    flex: 0 0 auto;
    min-height: 42px;
    padding-inline: 14px;
    font-size: 12px;
  }

  .explorer-panel {
    min-height: 0;
  }

  .explorer-media {
    min-height: 0;
    aspect-ratio: 3 / 2;
  }

  .explorer-copy {
    padding: 24px 20px 26px;
  }

  .explorer-copy h3 {
    font-size: 31px;
  }

  .deliverable-list article {
    grid-template-columns: 42px minmax(0,1fr);
    gap: 12px;
  }

  .reuse-card {
    position: static;
  }

  .scope-form,
  .scope-result {
    width: 100%;
    padding: 20px;
    border-radius: 22px;
  }

  .scope-form fieldset {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .scope-form label {
    min-height: 76px;
    padding: 13px;
  }

  .scope-result {
    position: static;
  }

  .scope-result h3 {
    font-size: 30px;
  }

  .scope-result .button {
    width: 100%;
  }

  .package-grid article.featured {
    transform: none;
  }

  .workflow {
    gap: 10px;
  }

  .workflow li {
    min-height: 0;
    padding: 20px;
  }

  .live-card {
    gap: 26px;
    padding: 20px;
    border-radius: 24px;
  }

  .browser-preview,
  .browser-preview img {
    border-radius: 16px;
  }

  .browser-bar {
    min-width: 0;
    padding-inline: 11px;
  }

  .browser-bar span {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .use-case-grid {
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 8px;
  }

  .use-case-grid span {
    min-width: 0;
    padding-inline: 8px;
    text-align: center;
    overflow-wrap: anywhere;
  }

  .faq-layout {
    gap: 18px;
  }

  .faq-list summary {
    padding: 18px 46px 18px 18px;
    line-height: 1.45;
  }

  .faq-list details p {
    padding: 0 18px 20px;
  }

  .cta-card {
    width: 100%;
    padding: 28px 22px;
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
    border-radius: 24px;
  }

  .cta-card h2 {
    font-size: clamp(34px, 9.5vw, 46px);
  }

  .cta-card .actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
  }

  .cta-card .button {
    width: 100%;
  }

  footer {
    padding-bottom: 30px;
  }

  .footer-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .footer-links a,
  .footer-links button {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .mobile-cta {
    z-index: 95;
    inset: auto 0 0;
    height: auto;
    min-height: 64px;
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 8px;
    background: rgba(8,12,18,.96);
    border-top: 1px solid rgba(255,255,255,.12);
    backdrop-filter: blur(18px);
  }

  .mobile-cta a {
    min-width: 0;
    min-height: 48px;
    padding-inline: 10px;
    border-radius: 13px;
    text-align: center;
    white-space: nowrap;
    font-size: 13px;
  }

  .back-top {
    right: 14px;
    bottom: calc(82px + env(safe-area-inset-bottom));
  }

  .lightbox {
    padding: max(14px, env(safe-area-inset-top)) 10px max(14px, env(safe-area-inset-bottom));
  }

  .lightbox figure {
    width: 100%;
    max-width: 100%;
  }

  .lightbox img {
    max-width: 100%;
    max-height: 74dvh;
    object-fit: contain;
  }

  .lightbox-close {
    top: calc(10px + env(safe-area-inset-top));
    right: 10px;
  }

  .lightbox-prev,
  .lightbox-next {
    width: 42px;
    height: 52px;
    top: auto;
    bottom: calc(20px + env(safe-area-inset-bottom));
    transform: none;
  }

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

  .lightbox figcaption {
    padding-inline: 52px;
    text-align: center;
    font-size: 12px;
  }
}

@media (max-width: 420px) {
  .container {
    padding-inline: 14px;
  }

  .hero {
    padding-bottom: 40px;
  }

  .hero h1 {
    font-size: clamp(34px, 10.8vw, 43px);
  }

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

  .hero .actions .share-button {
    grid-column: auto;
  }

  .project-card,
  .project-card dl {
    grid-template-columns: 1fr;
  }

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

  .metric-grid article {
    min-height: 96px;
    border-right: 0;
    border-bottom: 1px solid #e7ebef;
  }

  .metric-grid article:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 56px 0;
  }

  .section-head h2,
  .cta-card h2 {
    font-size: 33px;
  }

  .viewer-shell {
    height: 420px;
  }

  .floorplan .map-label {
    font-size: 16px;
  }

  .floorplan .map-small {
    font-size: 12px;
  }

  .deliverable-list article {
    grid-template-columns: 1fr;
  }

  .deliverable-list article > b {
    width: 38px;
  }

  .use-case-grid,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .mobile-cta {
    grid-template-columns: 1fr 1.18fr;
  }
}

@media (max-width: 820px) and (orientation: landscape) {
  .hero {
    min-height: 100svh;
  }

  .viewer-shell {
    height: 78svh;
    min-height: 360px;
  }

  .lightbox img {
    max-height: 68dvh;
  }
}


/* final-delivery-v1: preserve original media proportions */
.photo-grid figure,
.photo-grid .photo-landscape,
.photo-grid .photo-portrait {
  aspect-ratio: auto !important;
}
.photo-grid .photo-open,
.detail-card .photo-open,
.detail-card-wide .photo-open,
.detail-card-tall .photo-open,
.detail-card button,
.detail-card-wide button,
.detail-card-tall button {
  height: auto !important;
  min-height: 0 !important;
  aspect-ratio: auto !important;
}
.photo-grid picture,
.photo-grid img,
.detail-card picture,
.detail-card img {
  width: 100% !important;
  height: auto !important;
  aspect-ratio: auto !important;
  object-fit: contain !important;
}
.photo-grid figure,
.detail-card {
  align-self: start;
}
.explorer-media img {
  object-fit: contain !important;
  background: #e9eef2;
}