:root {
      --paper: #F6F4EF;
      --ink: #141414;
      --line: rgba(20, 20, 20, 0.14);
      --line-light: rgba(246, 244, 239, 0.22);
      --red: #E0422B;
      --blue: #2B50D0;
      --yellow: #F2B705;
      --display: "Jost", "Futura", sans-serif;
      --body: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
      --maxw: 72rem;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }

    html { scroll-behavior: smooth; }

    /* The whole canvas shifts color as you travel through the page.
       Zones: paper (hero/work/clients) -> ink (process) -> yellow (quote) -> ink (contact) */
    body {
      background-color: var(--paper);
      color: var(--ink);
      font-family: var(--body);
      font-size: 1.0625rem;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      transition: background-color 0.55s ease;
    }
    body[data-zone="ink"]    { background-color: var(--ink); }
    body[data-zone="yellow"] { background-color: var(--yellow); }

    /* Hard guarantee: the page can never scroll sideways */
    html, body {
      max-width: 100%;
      overflow-x: hidden;
      overflow-x: clip;
    }

    img, svg, video, iframe { max-width: 100%; }
    img { display: block; height: auto; }
    a { color: inherit; }

    :focus-visible {
      outline: 2px solid var(--blue);
      outline-offset: 3px;
    }
    .quote :focus-visible, .process-sec :focus-visible, .contact :focus-visible {
      outline-color: currentColor;
    }

    .skip-link {
      position: absolute;
      left: -999px;
      top: 0;
      background: var(--ink);
      color: var(--paper);
      padding: 0.5rem 1rem;
      z-index: 100;
    }
    .skip-link:focus { left: 0; }

    .wrap {
      max-width: var(--maxw);
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* ============ Header (adapts to the zone beneath it) ============ */
    .site-header {
      position: sticky;
      top: 0;
      background: rgba(246, 244, 239, 0.86);
      -webkit-backdrop-filter: blur(10px) saturate(1.4);
      backdrop-filter: blur(10px) saturate(1.4);
      border-bottom: 1px solid var(--line);
      z-index: 50;
      transition: background-color 0.55s ease, color 0.55s ease, border-color 0.55s ease;
    }
    body[data-zone="ink"] .site-header {
      background: rgba(20, 20, 20, 0.78);
      color: var(--paper);
      border-color: var(--line-light);
    }
    body[data-zone="yellow"] .site-header {
      background: rgba(242, 183, 5, 0.82);
      color: var(--ink);
      border-color: rgba(20, 20, 20, 0.2);
    }
    .site-header .wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      min-height: 4rem;
      padding-top: 0.4rem;
      padding-bottom: 0.4rem;
    }
    .brand {
      font-family: var(--display);
      font-weight: 600;
      font-size: 1.25rem;
      letter-spacing: 0.02em;
      text-decoration: none;
    }
    .site-nav { display: flex; gap: 1.75rem; }
    .site-nav a {
      font-family: var(--display);
      font-weight: 500;
      font-size: 0.95rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      text-decoration: none;
      padding: 0.25rem 0;
      border-bottom: 2px solid transparent;
    }
    .site-nav a:hover { border-bottom-color: var(--red); }

    /* ============ Hero ============ */
    .hero {
      position: relative;
      overflow: hidden;
      padding: clamp(4.5rem, 11vw, 7rem) 0 clamp(3.5rem, 9vw, 5.5rem);
    }
    .hero-inner { position: relative; z-index: 2; will-change: transform, opacity; }

    /* Floating Bauhaus forms, drifting at different speeds */
    .hero-forms {
      position: absolute;
      inset: 0;
      z-index: 1;
      pointer-events: none;
    }
    .hero-forms svg { position: absolute; display: block; }
    .hf-triangle { width: clamp(5rem, 11vw, 9.5rem);   top: 34%; right: 10%; }
    .hf-square   { width: clamp(3.5rem, 7.5vw, 6.5rem); top: 42%; right: 14%; }
    .hf-circle   { width: clamp(6.5rem, 15vw, 13rem);   top: 50%; right: 2%; }

    .hero-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      margin-bottom: 2.25rem;
    }
    .eyebrow {
      font-family: var(--display);
      font-weight: 500;
      font-size: 0.9rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }
    .forms-trio { display: flex; gap: 0.65rem; }
    .forms-trio svg { display: block; }

    .hero h1 {
      font-family: var(--display);
      font-weight: 600;
      font-size: clamp(2.75rem, 7.5vw, 5.5rem);
      line-height: 1.04;
      letter-spacing: -0.015em;
      text-wrap: balance;
      max-width: 18ch;
    }

    .hero .rule {
      width: 7.5rem;
      height: 6px;
      background: var(--red);
      margin: 2.25rem 0;
    }

    .lede {
      max-width: 38rem;
      font-size: 1.1875rem;
      margin-bottom: 2.5rem;
    }
    .lede strong { font-weight: 500; }

    .hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; }

    .btn {
      font-family: var(--display);
      font-weight: 500;
      font-size: 0.95rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      text-decoration: none;
      padding: 0.85rem 1.6rem;
      border: 1.5px solid var(--ink);
      transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
    }
    .btn-solid { background: var(--ink); color: var(--paper); }
    .btn-solid:hover { background: var(--red); border-color: var(--red); }
    .btn-ghost:hover { background: var(--ink); color: var(--paper); }

    .avail {
      display: flex; align-items: center; gap: 0.55rem;
      margin-top: 2.25rem;
      font-family: var(--display); font-weight: 500; font-size: 0.9rem;
      letter-spacing: 0.08em; text-transform: uppercase;
    }
    .avail svg { flex: none; }

    .quote-more { text-align: center; margin-top: 2rem; }
    .quote-more a {
      font-family: var(--display); font-weight: 500; font-size: 0.9rem;
      letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none;
      border-bottom: 2px solid var(--red); padding-bottom: 2px;
    }
    .quote-more a:hover { background: rgba(20, 20, 20, 0.08); }

    /* ============ Sections ============ */
    section { padding: clamp(3.25rem, 7vw, 4.5rem) 0; }
    .hr-top { border-top: 1px solid var(--line); }

    .section-head {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 1rem;
      flex-wrap: wrap;
      margin-bottom: 2.5rem;
    }
    .section-head h2 {
      font-family: var(--display);
      font-weight: 600;
      font-size: clamp(1.6rem, 3vw, 2.25rem);
      letter-spacing: -0.01em;
    }
    .section-head .note { font-size: 0.95rem; opacity: 0.62; }

    /* ============ Filters ============ */
    .filters {
      display: flex;
      flex-wrap: wrap;
      gap: 0.6rem;
      margin-bottom: 2.25rem;
    }
    .filter-btn {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-family: var(--display);
      font-weight: 500;
      font-size: 0.9rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      background: transparent;
      color: var(--ink);
      border: 1.5px solid var(--line);
      padding: 0.55rem 1.05rem;
      cursor: pointer;
      transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
    }
    .filter-btn:hover { border-color: var(--ink); }
    .filter-btn[aria-pressed="true"] {
      background: var(--ink);
      color: var(--paper);
      border-color: var(--ink);
    }
    .filter-btn svg { display: block; }
    .filter-btn[aria-pressed="true"] .form-outline { stroke: var(--paper); }

    /* ============ Work grid ============ */
    .grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem 1.5rem;
    }
    .card { display: block; }
    .card.is-hidden { display: none; }
    .card a { display: block; text-decoration: none; }
    .card .thumb {
      overflow: hidden;
      border: 1px solid var(--line);
      background: #fff;
    }
    .card img {
      width: 100%;
      aspect-ratio: 1 / 1;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .card a:hover img { transform: scale(1.025); }
    .card .meta {
      display: flex;
      align-items: baseline;
      gap: 0.6rem;
      padding-top: 0.85rem;
    }
    .card .meta svg { flex: none; transform: translateY(1px); }
    .card h3 {
      font-family: var(--display);
      font-weight: 600;
      font-size: 1.15rem;
      letter-spacing: 0.01em;
    }
    .card .tag {
      margin-left: auto;
      font-size: 0.85rem;
      color: rgba(20, 20, 20, 0.6);
      text-align: right;
    }
    .card a:hover h3 {
      text-decoration: underline;
      text-decoration-color: var(--red);
      text-decoration-thickness: 2px;
      text-underline-offset: 4px;
    }

    /* ============ Clients ============ */
    .clients-row {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 2rem 2.5rem;
      align-items: center;
    }
    .clients-row img {
      max-height: 44px;
      width: auto;
      max-width: 100%;
      margin: 0 auto;
      filter: grayscale(1);
      opacity: 0.7;
      transition: filter 0.2s ease, opacity 0.2s ease;
    }
    .clients-row img:hover { filter: none; opacity: 1; }

    /* ============ Colored zones share a watermark pattern ============ */
    .process-sec, .quote, .contact {
      position: relative;
      overflow: hidden;
    }
    .watermark {
      position: absolute;
      pointer-events: none;
      z-index: 0;
    }
    .process-sec .wrap, .quote .wrap, .contact .wrap { position: relative; z-index: 1; }

    /* ============ Process (ink zone) ============ */
    .process-sec { padding: clamp(4.5rem, 10vw, 6.5rem) 0; color: var(--paper); }
    .process-sec .watermark { width: min(38rem, 90vw); top: -7rem; right: -9rem; opacity: 0.4; }
    .process-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2.5rem;
    }
    .step .num {
      font-family: var(--display);
      font-weight: 600;
      font-size: 0.9rem;
      letter-spacing: 0.14em;
      display: block;
      margin-bottom: 0.6rem;
    }
    .step:nth-child(1) .num { color: var(--yellow); }
    .step:nth-child(2) .num { color: #F0654F; }
    .step:nth-child(3) .num { color: #7B96F0; }
    .step h3 {
      font-family: var(--display);
      font-weight: 600;
      font-size: 1.35rem;
      margin-bottom: 0.9rem;
    }
    .step ul { list-style: none; }
    .step li {
      padding: 0.45rem 0;
      border-top: 1px solid var(--line-light);
      font-size: 0.97rem;
    }
    .step li:last-child { border-bottom: 1px solid var(--line-light); }

    /* ============ Quote (yellow zone) ============ */
    .quote { padding: clamp(4.5rem, 10vw, 7rem) 0; color: var(--ink); }
    .quote .watermark { width: min(34rem, 85vw); bottom: -12rem; left: -10rem; opacity: 0.5; }
    .quote blockquote { max-width: 50rem; margin: 0 auto; text-align: center; }
    .quote p {
      font-family: var(--display);
      font-weight: 400;
      font-size: clamp(1.3rem, 2.6vw, 1.85rem);
      line-height: 1.4;
      text-wrap: balance;
    }
    .quote .mark {
      display: block;
      width: 2.5rem;
      height: 6px;
      background: var(--red);
      margin: 0 auto 1.75rem;
    }
    .quote blockquote footer { margin-top: 1.5rem; font-size: 0.95rem; opacity: 0.65; }

    /* ============ Contact (ink zone) ============ */
    .contact { padding: clamp(4.5rem, 10vw, 7rem) 0 clamp(4rem, 9vw, 6rem); color: var(--paper); }
    .contact .watermark { width: min(30rem, 80vw); top: 10%; right: -7rem; opacity: 0.35; }
    .contact h2 {
      font-family: var(--display);
      font-weight: 600;
      font-size: clamp(2.5rem, 6.5vw, 4.5rem);
      letter-spacing: -0.015em;
      margin-bottom: 1.25rem;
    }
    .contact .email {
      font-family: var(--display);
      font-weight: 500;
      font-size: clamp(1.2rem, 2.8vw, 1.7rem);
      text-decoration: none;
      border-bottom: 3px solid var(--yellow);
      padding-bottom: 2px;
      transition: background 0.18s ease;
    }
    .contact .email:hover { background: var(--red); }
    .contact .links {
      margin-top: 2.25rem;
      display: flex;
      gap: 1.75rem;
      flex-wrap: wrap;
    }
    .contact .links a {
      font-family: var(--display);
      font-weight: 500;
      font-size: 0.95rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      text-decoration: none;
      border-bottom: 2px solid transparent;
    }
    .contact .links a:hover { border-bottom-color: var(--red); }

    /* ============ Footer (stays in the ink zone) ============ */
    .site-footer {
      border-top: 1px solid var(--line-light);
      padding: 1.75rem 0;
      font-size: 0.9rem;
      color: rgba(246, 244, 239, 0.6);
    }
    .site-footer .wrap {
      display: flex;
      justify-content: space-between;
      gap: 1rem;
      flex-wrap: wrap;
    }

    /* ============ Reveal animation ============ */
    .reveal {
      opacity: 0;
      transform: translateY(14px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }
    .reveal.in { opacity: 1; transform: none; }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      body, .site-header { transition: none; }
      .reveal { opacity: 1; transform: none; transition: none; }
      .card img { transition: none; }
      .hero-inner { transform: none !important; opacity: 1 !important; }
      .hero-forms svg, .watermark { transform: none !important; }
    }

    /* ============ Responsive ============ */
    @media (max-width: 900px) {
      .grid { grid-template-columns: repeat(2, 1fr); }
      .process-grid { grid-template-columns: 1fr; gap: 2rem; }
      .clients-row { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 768px) {
      .hero-forms { display: none; }
    }
    @media (max-width: 560px) {
      .grid { grid-template-columns: 1fr; }
      .clients-row { grid-template-columns: repeat(2, 1fr); gap: 1.5rem 2rem; }
      .clients-row img { max-height: 36px; }
      .brand { font-size: 1.1rem; }
      .site-nav { gap: 0.9rem; }
      .site-nav a { font-size: 0.85rem; }
      .card .tag { display: none; }
    }
  
    /* ============ Case study pages ============ */
    .case-hero { padding: clamp(3.5rem, 8vw, 5rem) 0 0; }
    .eyebrow-row { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1.4rem; }
    .eyebrow-row svg { flex: none; }
    .case-hero h1 {
      font-family: var(--display); font-weight: 600;
      font-size: clamp(2.3rem, 5.5vw, 3.8rem);
      line-height: 1.05; letter-spacing: -0.01em; text-wrap: balance;
    }
    .case-hero .rule { width: 5.5rem; height: 5px; background: var(--red); margin: 1.6rem 0; }
    .case-hero .lede { margin-bottom: 0; }

    .case-meta {
      display: flex; flex-wrap: wrap; gap: 1rem 3rem;
      border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
      padding: 1.1rem 0; margin-top: 2.25rem;
    }
    .case-meta dt {
      font-family: var(--display); font-weight: 500; font-size: 0.78rem;
      letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.55;
    }
    .case-meta dd { margin: 0.15rem 0 0; font-size: 0.97rem; }
    .case-meta dd a { text-decoration: none; border-bottom: 2px solid var(--red); padding-bottom: 1px; }
    .case-meta dd a:hover { background: var(--yellow); }

    .stats { display: flex; flex-wrap: wrap; gap: 1.25rem 3.5rem; margin-top: 2.25rem; }
    .stat-num {
      display: block; font-family: var(--display); font-weight: 600;
      font-size: clamp(1.9rem, 3.5vw, 2.75rem);
      line-height: 1.1; letter-spacing: -0.01em; color: var(--red);
    }
    .stat-label { font-size: 0.92rem; opacity: 0.7; }

    .case-brief { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem; padding-top: 2.75rem; }
    .case-brief h2 {
      display: flex; align-items: center; gap: 0.45rem;
      font-family: var(--display); font-weight: 500; font-size: 0.8rem;
      letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.75; margin-bottom: 0.6rem;
    }
    .case-brief h2 svg { flex: none; }
    .case-brief p { font-size: 0.97rem; }

    .case-quote {
      margin-top: 2.75rem; border-left: 4px solid var(--red);
      padding: 0.4rem 0 0.4rem 1.5rem;
    }
    .case-quote p {
      font-family: var(--display); font-weight: 400;
      font-size: clamp(1.15rem, 2.2vw, 1.45rem); line-height: 1.45;
    }
    .case-quote figcaption { margin-top: 0.85rem; font-size: 0.92rem; opacity: 0.7; }
    .case-quote figcaption a { text-decoration: none; border-bottom: 2px solid var(--red); padding-bottom: 1px; }
    .case-quote figcaption a:hover { background: var(--yellow); }

    .case-layout {
      display: grid; grid-template-columns: minmax(0, 1fr) 17rem;
      gap: 2.5rem; align-items: start; padding-top: 2.75rem;
    }
    .case-aside { grid-column: 2; position: sticky; top: 5.5rem; }
    .case-body  { grid-column: 1; grid-row: 1; }
    .aside-title { font-family: var(--display); font-weight: 600; font-size: 1.1rem; margin-bottom: 0.4rem; }
    .aside-note { font-size: 0.95rem; opacity: 0.75; margin-bottom: 1.5rem; }
    .aside-sub {
      font-family: var(--display); font-weight: 500; font-size: 0.8rem;
      letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.55; margin-bottom: 0.5rem;
    }
    .line-list { list-style: none; }
    .line-list li { padding: 0.45rem 0; border-top: 1px solid var(--line); font-size: 0.95rem; }
    .line-list li:last-child { border-bottom: 1px solid var(--line); }
    .aside-link {
      display: inline-block; margin-top: 1.5rem;
      font-family: var(--display); font-weight: 500; font-size: 0.9rem;
      letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none;
      border-bottom: 2px solid var(--red); padding-bottom: 2px;
    }
    .aside-link:hover { background: var(--yellow); }

    .frame { border: 1px solid var(--line); background: #fff; }
    .frame img, .frame video { width: 100%; height: auto; display: block; }
    .frame iframe { width: 100%; display: block; }
    .case-media { display: grid; gap: 1.75rem; margin-top: 1.75rem; }
    .media-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
    .media-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
    .split-21 { display: grid; grid-template-columns: 2fr 1fr; gap: 1.5rem; align-items: start; }
    .split-12 { display: grid; grid-template-columns: 1fr 2fr; gap: 1.5rem; align-items: start; }
    .video-frame { aspect-ratio: 16 / 9; }
    .video-frame iframe { height: 100%; border: 0; }
    .video-portrait { aspect-ratio: 9 / 16; width: 100%; max-width: 380px; margin: 0 auto; }
    .video-portrait iframe { height: 100%; border: 0; }

    .frame--portrait { max-width: 380px; margin: 0 auto; }

    .case-nav {
      display: flex; justify-content: space-between; align-items: center; gap: 1.5rem;
      border-top: 1px solid var(--line); margin-top: 3rem; padding-top: 2rem;
    }
    .case-nav a { text-decoration: none; min-width: 0; }
    .case-nav .dir {
      display: block; font-family: var(--display); font-weight: 500; font-size: 0.75rem;
      letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.55; margin-bottom: 0.15rem;
    }
    .case-nav .name { font-family: var(--display); font-weight: 600; font-size: 1.15rem; }
    .case-nav a:hover .name {
      text-decoration: underline; text-decoration-color: var(--red);
      text-decoration-thickness: 2px; text-underline-offset: 4px;
    }
    .case-nav .all {
      font-family: var(--display); font-weight: 500; font-size: 0.9rem;
      letter-spacing: 0.08em; text-transform: uppercase;
    }
    .case-nav .next { text-align: right; }

    /* ============ About page ============ */
    .about-grid {
      display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
      gap: 2.5rem; align-items: start; padding-top: 2.5rem;
    }
    .about-grid .lede { margin-bottom: 1.25rem; }
    .about-text p + p { margin-top: 1rem; }
    .aufdeutsch-label {
      font-family: var(--display); font-weight: 500; font-size: 0.8rem;
      letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.55;
      margin: 1.75rem 0 0.4rem !important;
    }
    .facts { margin-top: 1.75rem; }
    .facts strong { font-family: var(--display); font-weight: 600; margin-right: 0.5rem; }
    .about-cta { margin-top: 2rem; }
    .bauhaus-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: center; }

    /* ============ References page ============ */
    .ref { padding: 2.75rem 0; border-top: 1px solid var(--line); }
    .ref:last-of-type { border-bottom: 1px solid var(--line); }
    .ref blockquote p {
      font-family: var(--display); font-weight: 400;
      font-size: clamp(1.15rem, 2.2vw, 1.5rem); line-height: 1.45;
      max-width: 50rem;
    }
    .ref blockquote p + p { margin-top: 1rem; }
    .ref footer { margin-top: 1.4rem; display: flex; align-items: baseline; gap: 0.6rem; font-size: 0.95rem; }
    .ref footer svg { flex: none; transform: translateY(1px); }
    .ref footer strong { font-family: var(--display); font-weight: 600; }
    .ref-ctx { opacity: 0.6; font-size: 0.88rem; }

    /* ============ Contact page ============ */
    .direct-row { margin-top: 2.25rem; }
    .email-paper {
      font-family: var(--display); font-weight: 500;
      font-size: clamp(1.2rem, 2.8vw, 1.7rem);
      text-decoration: none; border-bottom: 3px solid var(--red); padding-bottom: 2px;
    }
    .email-paper:hover { background: var(--yellow); }
    .cform { max-width: 44rem; }
    .cform .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.5rem; }
    .cform label {
      display: block; font-family: var(--display); font-weight: 500; font-size: 0.8rem;
      letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.75;
      margin: 1.5rem 0 0.45rem;
    }
    .cform input, .cform textarea {
      width: 100%; background: #fff; color: var(--ink);
      border: 1.5px solid var(--ink); border-radius: 0;
      padding: 0.8rem 0.9rem; font: inherit;
    }
    .cform textarea { min-height: 11rem; resize: vertical; }
    .cform button { margin-top: 1.75rem; cursor: pointer; }
    .form-note { margin-top: 1rem; font-size: 0.9rem; opacity: 0.65; }
    .site-footer--paper { border-color: var(--line); color: rgba(20, 20, 20, 0.6); }

    @media (max-width: 900px) {
      .case-layout { grid-template-columns: 1fr; gap: 2rem; }
      .case-aside { grid-column: auto; position: static; }
      .case-body { grid-column: auto; grid-row: auto; }
      .case-brief { grid-template-columns: 1fr; gap: 1.5rem; }
      .media-grid-3 { grid-template-columns: repeat(2, 1fr); }
      .about-grid, .bauhaus-feature { grid-template-columns: 1fr; }
    }
    @media (max-width: 560px) {
      .media-grid-2, .media-grid-3, .split-21, .split-12 { grid-template-columns: 1fr; }
      .case-meta { gap: 0.9rem 2rem; }
      .stats { gap: 1rem 2.25rem; }
      .case-nav .name { font-size: 1rem; }
      .cform .row2 { grid-template-columns: 1fr; }
    }

/* ═══════════════════════════════════════════════════════════
   DEEP CASE STUDY SECTIONS  — added v4
   Extends the existing system. Tokens unchanged.
   ═══════════════════════════════════════════════════════════ */

.deep{padding:5.5rem 0 0}
.deep:last-of-type{padding-bottom:5.5rem}
.deep-head{display:flex;gap:1.25rem;align-items:baseline;
  border-top:1px solid var(--line);padding-top:1.25rem;margin-bottom:2.5rem}
.deep-num{font-family:var(--display);font-size:.8rem;font-weight:500;
  letter-spacing:.14em;opacity:.45;flex:none;padding-top:.35rem}
.deep-head h2{font-family:var(--display);font-size:clamp(1.5rem,3.4vw,2.25rem);
  font-weight:500;line-height:1.12;letter-spacing:-.015em;margin:0}
.deep-head p{margin:.5rem 0 0;max-width:46ch;opacity:.62;font-size:.95rem}
.deep-lede{font-size:clamp(1.05rem,1.9vw,1.3rem);line-height:1.55;
  max-width:60ch;margin:0 0 2rem}
.deep-body{max-width:68ch}
.deep-body p{margin:0 0 1.15rem;line-height:1.65}
.deep-body p:last-child{margin-bottom:0}

/* Context / constraints — two column */
.deep-2col{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
@media(max-width:820px){.deep-2col{grid-template-columns:1fr;gap:2.25rem}}

/* Constraint + insight items, marked with Bauhaus primitives */
.mark-list{list-style:none;margin:0;padding:0;display:grid;gap:1.5rem}
.mark-list li{display:grid;grid-template-columns:auto 1fr;gap:.9rem;
  align-items:start}
.mark-list svg{margin-top:.4rem;flex:none}
.mark-list h3{font-family:var(--display);font-size:1rem;font-weight:500;
  margin:0 0 .3rem;letter-spacing:.01em}
.mark-list p{margin:0;font-size:.95rem;line-height:1.6;opacity:.78}

/* Insight cards */
.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
@media(max-width:900px){.insight-grid{grid-template-columns:1fr}}
.insight{border-top:2px solid var(--ink);padding-top:1.1rem}
.insight .k{font-family:var(--display);font-size:.72rem;letter-spacing:.15em;
  text-transform:uppercase;opacity:.5;display:block;margin-bottom:.55rem}
.insight h3{font-family:var(--display);font-size:1.12rem;font-weight:500;
  line-height:1.25;margin:0 0 .5rem}
.insight p{margin:0;font-size:.92rem;line-height:1.6;opacity:.78}

/* Decision blocks — the reasoning showcase */
.decision{border:1px solid var(--line);padding:1.75rem;margin-bottom:1.25rem}
.decision > h3{font-family:var(--display);font-size:1.2rem;font-weight:500;
  margin:0 0 1.25rem;line-height:1.3}
.dec-row{display:grid;grid-template-columns:8.5rem 1fr;gap:1rem;
  padding:.85rem 0;border-top:1px solid var(--line)}
.dec-row:first-of-type{border-top:0;padding-top:0}
.dec-row dt{font-family:var(--display);font-size:.74rem;letter-spacing:.13em;
  text-transform:uppercase;opacity:.5;padding-top:.15rem}
.dec-row dd{margin:0;font-size:.95rem;line-height:1.6}
@media(max-width:640px){.dec-row{grid-template-columns:1fr;gap:.3rem}}
.dec-row--pick dd{font-weight:500}
.dec-row--pick dt{color:var(--red);opacity:1}

/* Reflection */
.reflect{background:var(--ink);color:var(--paper);padding:3rem 2.25rem}
.reflect h2{font-family:var(--display);font-size:clamp(1.4rem,3vw,2rem);
  font-weight:500;margin:0 0 1.5rem}
.reflect .deep-body{max-width:64ch}
.reflect .deep-body p{opacity:.86}

/* Credits */
.credits{display:grid;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));
  gap:1.75rem;border-top:1px solid var(--line);padding-top:1.75rem}
.credits div span{font-family:var(--display);font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;opacity:.5;display:block;margin-bottom:.45rem}
.credits div p{margin:0;font-size:.95rem;line-height:1.55}

/* ── AUTHORING PLACEHOLDER ──
   Loud on purpose. Must be empty before you publish.
   Run:  grep -rn "class=\"todo\"" *.html   */
.todo{border:2px dashed var(--red);background:rgba(224,66,43,.06);
  padding:1.25rem 1.4rem;margin:0 0 1.25rem;font-size:.92rem;line-height:1.6}
.todo::before{content:"WRITE THIS — remove before publishing";
  display:block;font-family:var(--display);font-size:.68rem;letter-spacing:.16em;
  color:var(--red);margin-bottom:.6rem;font-weight:600}
.todo ul{margin:.5rem 0 0;padding-left:1.1rem}
.todo li{margin-bottom:.35rem}

/* ═══════════════════════════════════════════════════════════
   NARRATIVE CASE SECTIONS — added v5
   Long-form research/process structure.
   ═══════════════════════════════════════════════════════════ */

/* Named problem / solution blocks with bold sub-heads */
.named-block{margin:0 0 2rem;max-width:68ch}
.named-block:last-child{margin-bottom:0}
.named-block h3{font-family:var(--display);font-size:1.08rem;font-weight:600;
  margin:0 0 .5rem;line-height:1.3}
.named-block p{margin:0 0 .8rem;line-height:1.65;font-size:.97rem}
.named-block p:last-child{margin-bottom:0}

/* Verb-first ownership list */
.own-list{list-style:none;margin:1.25rem 0 0;padding:0;max-width:60ch}
.own-list li{padding:.6rem 0 .6rem 1.5rem;border-top:1px solid var(--line);
  font-size:.97rem;line-height:1.55;position:relative}
.own-list li:last-child{border-bottom:1px solid var(--line)}
.own-list li::before{content:"";position:absolute;left:0;top:1.15rem;
  width:7px;height:7px;background:var(--red)}

/* Numbered architecture list */
.arch-list{list-style:none;counter-reset:arch;margin:1.5rem 0 0;padding:0;
  display:grid;gap:1.25rem;max-width:64ch}
.arch-list li{counter-increment:arch;display:grid;
  grid-template-columns:2.25rem 1fr;gap:1rem;align-items:start}
.arch-list li::before{content:counter(arch);font-family:var(--display);
  font-size:1.5rem;font-weight:500;line-height:1;opacity:.32;padding-top:.1rem}
.arch-list strong{font-family:var(--display);font-weight:600;
  display:block;margin-bottom:.25rem}
.arch-list p{margin:0;font-size:.95rem;line-height:1.6;opacity:.82}

/* Research method band */
.method-band{display:grid;grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));
  gap:1.5rem;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);
  padding:1.4rem 0;margin:0 0 2rem}
.method-band div span{font-family:var(--display);font-size:.7rem;letter-spacing:.14em;
  text-transform:uppercase;opacity:.5;display:block;margin-bottom:.4rem}
.method-band div p{margin:0;font-size:.95rem;line-height:1.5;font-weight:500}

/* Findings — what worked / what didn't */
.findings{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;margin-top:1.75rem}
@media(max-width:820px){.findings{grid-template-columns:1fr;gap:2rem}}
.findings h3{font-family:var(--display);font-size:1rem;font-weight:600;
  margin:0 0 .9rem;display:flex;align-items:center;gap:.55rem}
.findings ul{list-style:none;margin:0;padding:0}
.findings li{padding:.55rem 0;border-top:1px solid var(--line);
  font-size:.95rem;line-height:1.55}
.findings li:last-child{border-bottom:1px solid var(--line)}
.f-pos h3{color:#0B804B}
.f-neg h3{color:var(--red)}

/* Key learning callout */
.learning{border-left:4px solid var(--yellow);background:rgba(242,183,5,.09);
  padding:1.4rem 1.6rem;margin:1.75rem 0;max-width:66ch}
.learning span{font-family:var(--display);font-size:.7rem;letter-spacing:.16em;
  text-transform:uppercase;opacity:.55;display:block;margin-bottom:.5rem}
.learning h3{font-family:var(--display);font-size:1.05rem;font-weight:600;
  margin:0 0 .55rem;line-height:1.3}
.learning p{margin:0;font-size:.95rem;line-height:1.65}

/* Q&A block */
.qa{margin:1.5rem 0 0;max-width:66ch}
.qa dt{font-family:var(--display);font-weight:600;font-size:.97rem;
  margin-top:1.1rem;padding-top:1.1rem;border-top:1px solid var(--line)}
.qa dt:first-child{margin-top:0;padding-top:0;border-top:0}
.qa dd{margin:.4rem 0 0;font-size:.95rem;line-height:1.6;opacity:.84}

/* Outcome split by discipline */
.outcome-split{display:grid;gap:2.25rem;max-width:68ch}
.outcome-split > section > h3{font-family:var(--display);font-size:1.1rem;
  font-weight:600;margin:0 0 .6rem;padding-bottom:.5rem;
  border-bottom:2px solid var(--ink)}
.outcome-split > section > p{margin:0 0 .8rem;font-size:.97rem;line-height:1.65}
.outcome-split > section > p:last-child{margin-bottom:0}

/* ═══════════════════════════════════════════════════════════
   v3.5 — EXECUTIVE SUMMARY + PROGRESSIVE DISCLOSURE
   Scannable in ~45s; depth available on demand.
   ═══════════════════════════════════════════════════════════ */

/* Exec card: upgrades .case-brief from 3 to 4 fields */
.case-brief{grid-template-columns:repeat(4,1fr);gap:2rem;
  border-top:2px solid var(--ink);border-bottom:1px solid var(--line);
  padding:2rem 0 2.25rem;margin-top:2.75rem}
.case-brief > div:nth-child(3) h2{color:var(--red)}
.case-brief > div:nth-child(3) p{font-weight:500}
@media(max-width:960px){.case-brief{grid-template-columns:repeat(2,1fr);gap:1.75rem}}
@media(max-width:640px){.case-brief{grid-template-columns:1fr;gap:1.4rem}}

/* Disclosure block */
.disclose{border-top:1px solid var(--line);margin:0}
.disclose:last-of-type{border-bottom:1px solid var(--line)}
.disclose > summary{list-style:none;cursor:pointer;display:grid;
  grid-template-columns:2.75rem 1fr 1.5rem;gap:.75rem;align-items:start;
  padding:1.5rem 0;transition:background .18s ease}
.disclose > summary::-webkit-details-marker{display:none}
.disclose > summary:hover{background:rgba(20,20,20,.025)}
.disclose > summary:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.d-num{font-family:var(--display);font-size:.78rem;font-weight:500;
  letter-spacing:.14em;opacity:.42;padding-top:.42rem}
.d-h{font-family:var(--display);font-size:clamp(1.15rem,2.2vw,1.45rem);
  font-weight:500;line-height:1.2;letter-spacing:-.01em;display:block;
  margin-bottom:.35rem}
.d-sub{display:block;font-size:.97rem;line-height:1.5;opacity:.72;max-width:62ch}
.d-icon{width:1.5rem;height:1.5rem;position:relative;margin-top:.5rem;justify-self:end}
.d-icon::before,.d-icon::after{content:"";position:absolute;background:var(--ink);
  transition:transform .22s ease,opacity .22s ease}
.d-icon::before{top:50%;left:0;width:100%;height:2px;transform:translateY(-50%)}
.d-icon::after{left:50%;top:0;height:100%;width:2px;transform:translateX(-50%)}
.disclose[open] > summary .d-icon::after{transform:translateX(-50%) rotate(90deg);opacity:0}
.disclose[open] > summary{background:rgba(20,20,20,.025)}
.disclose > .deep-body{padding:0 0 2.5rem 3.5rem;max-width:72ch}
@media(max-width:640px){
  .disclose > .deep-body{padding-left:0}
  .disclose > summary{grid-template-columns:2rem 1fr 1.25rem;gap:.5rem}
}
@media(prefers-reduced-motion:reduce){
  .d-icon::before,.d-icon::after{transition:none}
  .disclose > summary{transition:none}
}

/* Expand-all control */
.disclose-bar{display:flex;justify-content:space-between;align-items:baseline;
  gap:1rem;margin:4.5rem 0 0;flex-wrap:wrap}
.disclose-bar h2{font-family:var(--display);font-size:clamp(1.3rem,2.6vw,1.7rem);
  font-weight:500;margin:0}
.disclose-bar button{font-family:var(--display);font-size:.8rem;
  letter-spacing:.1em;text-transform:uppercase;background:none;cursor:pointer;
  border:1px solid var(--line);padding:.55rem 1rem;color:inherit}
.disclose-bar button:hover{background:var(--ink);color:var(--paper);
  border-color:var(--ink)}