/* ─── CASE STUDY OVERRIDES & ADDITIONS ───────────────────────────── */

    body > * { max-width: 1280px; margin-inline: auto; }

    /* ─── CASE NAV ──────────────────────────────────────────────────── */
    .cs-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 32px;
      margin: 16px;
      background: var(--ink);
      color: var(--bg);
      border-radius: 999px;
      position: sticky;
      top: 16px;
      z-index: 100;
    }
    .cs-nav__back {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--bg);
      transition: opacity 0.15s;
    }
    .cs-nav__back:hover { opacity: 0.7; }
    .cs-nav__back-dot {
      width: 26px; height: 26px;
      border-radius: 999px;
      background: var(--blue) url("portrait.png") center / cover no-repeat;
      flex-shrink: 0;
    }
    .cs-nav__sections {
      display: flex;
      gap: 4px;
    }
    .cs-nav__sec {
      padding: 8px 14px;
      font-size: 13px;
      background: transparent;
      border: 1px solid transparent;
      border-radius: 999px;
      color: var(--bg);
      cursor: pointer;
      transition: border-color 0.15s ease;
      font-family: "JetBrains Mono", monospace;
    }
    .cs-nav__sec:hover,
    .cs-nav__sec--active {
      border-color: rgba(244,242,236,0.3);
    }
    .cs-nav__progress {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      color: rgba(244,242,236,0.5);
    }

    /* ─── CS SHARED ──────────────────────────────────────────────────── */
    .cs-section {
      padding: 80px 32px;
      border-bottom: 1px solid var(--ink);
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .cs-section.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .cs-label {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 16px;
    }
    .cs-h2 {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      letter-spacing: -0.04em;
      line-height: 0.92;
      font-size: clamp(56px, 7vw, 96px);
      margin-bottom: 48px;
    }
    .cs-h3 {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      letter-spacing: -0.03em;
      line-height: 1;
      font-size: clamp(28px, 3vw, 40px);
      margin-bottom: 16px;
    }
    .cs-body {
      font-size: 16px;
      line-height: 1.65;
      color: var(--ink-soft);
      max-width: 600px;
    }
    .cs-body + .cs-body { margin-top: 16px; }
    .accent { color: var(--blue); }
    .hairline-top { border-top: 1px solid var(--ink); padding-top: 32px; margin-top: 32px; }

    /* ─── HERO ───────────────────────────────────────────────────────── */
    .cs-hero {
      padding: 48px 32px 0;
      opacity: 0;
      transform: translateY(24px);
      animation: fadeUp 0.7s ease 0.1s forwards;
    }
    @keyframes fadeUp {
      to { opacity: 1; transform: translateY(0); }
    }
    .cs-hero__top {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 32px;
    }
    .cs-hero__pills {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .cs-hero__meta {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      text-align: right;
      color: var(--muted);
      line-height: 1.8;
      white-space: nowrap;
    }
    .cs-hero__h1 {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      letter-spacing: -0.05em;
      line-height: 0.86;
      font-size: clamp(72px, 12vw, 160px);
      margin-top: 28px;
    }
    .cs-hero__bottom {
      margin-top: 40px;
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 32px;
      align-items: end;
      border-top: 1px solid var(--ink);
      padding-top: 24px;
      padding-bottom: 48px;
    }
    .cs-hero__lead {
      font-size: clamp(16px, 1.6vw, 21px);
      line-height: 1.35;
      letter-spacing: -0.01em;
      max-width: 380px;
    }
    .cs-hero__stats {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .cs-hero__stat-num {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      font-size: 64px;
      letter-spacing: -0.05em;
      line-height: 1;
      color: var(--blue);
    }
    .cs-hero__stat-label {
      font-size: 13px;
      color: var(--muted);
    }
    .cs-hero__attrs {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      line-height: 2;
      color: var(--ink-soft);
    }

    /* ─── OVERVIEW 3-COL ──────────────────────────────────────────────── */
    .cs-3col {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      border-top: 1px solid var(--ink);
    }
    .cs-3col__item {
      padding: 28px 24px;
      border-bottom: 1px solid var(--ink);
    }
    .cs-3col__item:not(:last-child) { border-right: 1px solid var(--ink); }
    .cs-3col__title {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      font-size: 22px;
      letter-spacing: -0.02em;
      margin: 12px 0 8px;
    }
    .cs-3col__body {
      font-size: 14px;
      line-height: 1.6;
      color: var(--ink-soft);
    }

    /* ─── QUOTE ──────────────────────────────────────────────────────── */
    .cs-quote {
      background: var(--blue-soft);
      border-left: 4px solid var(--blue);
      padding: 32px 40px;
      margin: 48px 0 0;
      border-radius: 0 8px 8px 0;
    }
    .cs-quote__text {
      font-family: "Inter Tight", sans-serif;
      font-weight: 600;
      font-size: clamp(18px, 2vw, 26px);
      letter-spacing: -0.02em;
      line-height: 1.3;
      color: var(--ink);
    }
    .cs-quote__attr {
      margin-top: 16px;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      color: var(--muted);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    /* ─── CHALLENGE GRID ─────────────────────────────────────────────── */
    .cs-challenge-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      border-top: 1px solid var(--ink);
      border-left: 1px solid var(--ink);
      margin-top: 40px;
    }
    .cs-challenge {
      padding: 28px 24px;
      border-right: 1px solid var(--ink);
      border-bottom: 1px solid var(--ink);
      transition: background 0.2s ease;
    }
    .cs-challenge:hover { background: var(--paper); }
    .cs-challenge--accent {
      background: var(--blue);
      color: #fff;
    }
    .cs-challenge--accent:hover { background: #0a2be0; }
    .cs-challenge__num {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      color: var(--muted);
      margin-bottom: 12px;
    }
    .cs-challenge--accent .cs-challenge__num { color: rgba(255,255,255,0.6); }
    .cs-challenge__title {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      font-size: 18px;
      letter-spacing: -0.02em;
      margin-bottom: 10px;
    }
    .cs-challenge__body {
      font-size: 13px;
      line-height: 1.55;
      color: var(--ink-soft);
    }
    .cs-challenge--accent .cs-challenge__body { color: rgba(255,255,255,0.8); }

    /* ─── TIMELINE ───────────────────────────────────────────────────── */
    .cs-timeline {
      position: relative;
      margin-top: 48px;
      padding: 24px 0;
      border-top: 1px solid var(--ink);
    }
    .cs-timeline__track {
      position: relative;
      display: flex;
      align-items: center;
      gap: 0;
    }
    .cs-timeline__step {
      flex: 1;
      position: relative;
      padding: 0 0 32px;
    }
    .cs-timeline__step::before {
      content: "";
      position: absolute;
      top: 8px; left: 0;
      width: 100%; height: 2px;
      background: var(--hairline);
    }
    .cs-timeline__step:first-child::before { width: calc(100% - 8px); left: 8px; }
    .cs-timeline__dot {
      width: 16px; height: 16px;
      border-radius: 999px;
      background: var(--bg);
      border: 2px solid var(--ink);
      position: relative;
      z-index: 1;
      transition: background 0.2s;
    }
    .cs-timeline__step:hover .cs-timeline__dot { background: var(--blue); border-color: var(--blue); }
    .cs-timeline__period {
      font-family: "JetBrains Mono", monospace;
      font-size: 10px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--muted);
      margin-top: 12px;
    }
    .cs-timeline__label {
      font-family: "Inter Tight", sans-serif;
      font-weight: 600;
      font-size: 13px;
      letter-spacing: -0.01em;
      margin-top: 4px;
    }

    /* ─── 2-COL LAYOUT ───────────────────────────────────────────────── */
    .cs-2col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: start;
    }
    .cs-2col--60-40 { grid-template-columns: 3fr 2fr; }
    .cs-2col--40-60 { grid-template-columns: 2fr 3fr; }

    /* ─── STAT CALLOUT ───────────────────────────────────────────────── */
    .cs-stat {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .cs-stat__num {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      letter-spacing: -0.05em;
      line-height: 0.9;
      font-size: clamp(64px, 8vw, 112px);
      color: var(--blue);
    }
    .cs-stat__label {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.4;
    }

    /* ─── INITIATIVES CARDS ──────────────────────────────────────────── */
    .cs-init-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-top: 48px;
    }
    .cs-init-card {
      border: 1px solid var(--ink);
      background: var(--paper);
      padding: 24px 20px;
      display: flex;
      flex-direction: column;
      min-height: 260px;
      cursor: pointer;
      transition: background 0.2s ease, transform 0.2s ease;
      text-decoration: none;
      color: var(--ink);
    }
    .cs-init-card:hover { background: var(--bg); transform: translateY(-2px); }
    .cs-init-card--accent {
      background: var(--blue);
      color: #fff;
      border-color: var(--blue);
    }
    .cs-init-card--accent:hover { background: #0a2be0; }
    .cs-init-card__num {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      color: var(--muted);
    }
    .cs-init-card--accent .cs-init-card__num { color: rgba(255,255,255,0.6); }
    .cs-init-card__title {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      font-size: 22px;
      letter-spacing: -0.03em;
      line-height: 1.1;
      margin: auto 0 0;
    }
    .cs-init-card__desc {
      font-size: 12px;
      line-height: 1.5;
      margin-top: 8px;
      color: var(--muted);
    }
    .cs-init-card--accent .cs-init-card__desc { color: rgba(255,255,255,0.7); }
    .cs-init-card__impact {
      margin-top: 12px;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      color: var(--blue);
    }
    .cs-init-card--accent .cs-init-card__impact { color: #fff; }

    /* ─── DEEP DIVE ──────────────────────────────────────────────────── */
    .cs-dd-header {
      display: flex;
      align-items: baseline;
      gap: 24px;
      margin-bottom: 8px;
    }
    .cs-dd-tag {
      background: var(--blue);
      color: #fff;
      font-family: "JetBrains Mono", monospace;
      font-size: 10px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      padding: 6px 12px;
      border-radius: 999px;
    }
    .cs-decision-list {
      margin-top: 32px;
      display: flex;
      flex-direction: column;
      gap: 0;
      border-top: 1px solid var(--ink);
    }
    .cs-decision {
      padding: 24px 0;
      border-bottom: 1px solid var(--hairline);
      display: grid;
      grid-template-columns: 48px 1fr;
      gap: 24px;
      cursor: pointer;
    }
    .cs-decision:hover .cs-decision__title { color: var(--blue); }
    .cs-decision__num {
      font-family: "JetBrains Mono", monospace;
      font-size: 20px;
      font-weight: 500;
      color: var(--blue);
      line-height: 1;
      padding-top: 4px;
    }
    .cs-decision__title {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      font-size: 20px;
      letter-spacing: -0.02em;
      margin-bottom: 8px;
      transition: color 0.15s;
    }
    .cs-decision__body {
      font-size: 14px;
      line-height: 1.6;
      color: var(--ink-soft);
    }
    .cs-decision__tradeoff {
      margin-top: 10px;
      font-size: 13px;
      color: var(--blue);
      font-weight: 500;
    }

    /* ─── BEFORE/AFTER TOGGLE ────────────────────────────────────────── */
    .cs-before-after {
      margin-top: 48px;
      border: 1px solid var(--ink);
      overflow: hidden;
    }
    .cs-ba-tabs {
      display: flex;
      border-bottom: 1px solid var(--ink);
    }
    .cs-ba-tab {
      flex: 1;
      padding: 14px 24px;
      font-family: "JetBrains Mono", monospace;
      font-size: 12px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      background: none;
      border: none;
      border-right: 1px solid var(--ink);
      cursor: pointer;
      color: var(--muted);
      transition: background 0.15s, color 0.15s;
    }
    .cs-ba-tab:last-child { border-right: none; }
    .cs-ba-tab--active {
      background: var(--ink);
      color: var(--bg);
    }
    .cs-ba-panel {
      display: none;
      padding: 40px;
    }
    .cs-ba-panel--active { display: block; }
    .cs-ba-screen {
      width: 100%;
      aspect-ratio: 16/9;
      background: repeating-linear-gradient(135deg, rgba(10,10,10,0.04) 0 8px, transparent 8px 16px);
      border: 1px dashed var(--hairline);
      display: grid;
      place-items: center;
      border-radius: 4px;
    }
    .cs-ba-screen span {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      color: var(--muted);
    }
    .cs-ba-annotations {
      margin-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .cs-ba-ann {
      display: flex;
      align-items: baseline;
      gap: 12px;
      font-size: 13px;
      color: var(--ink-soft);
    }
    .cs-ba-ann::before {
      content: "→";
      color: var(--blue);
      font-weight: 600;
      flex-shrink: 0;
    }

    /* ─── DESIGN SYSTEM TOKEN GRID ───────────────────────────────────── */
    .cs-token-grid {
      display: grid;
      grid-template-columns: repeat(8, 1fr);
      gap: 8px;
      margin-top: 32px;
    }
    .cs-token {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .cs-token__swatch {
      aspect-ratio: 1/1;
      border-radius: 8px;
      border: 1px solid var(--hairline);
    }
    .cs-token__name {
      font-family: "JetBrains Mono", monospace;
      font-size: 10px;
      color: var(--muted);
    }
    .cs-token__hex {
      font-family: "JetBrains Mono", monospace;
      font-size: 10px;
      color: var(--ink);
    }

    /* ─── COMPONENT ROW ──────────────────────────────────────────────── */
    .cs-component-row {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 24px;
      padding: 28px;
      background: var(--paper);
      border: 1px solid var(--hairline);
    }
    .cs-comp-pill {
      padding: 8px 16px;
      border: 1px solid var(--ink);
      border-radius: 999px;
      font-size: 12px;
      font-family: "JetBrains Mono", monospace;
    }

    /* ─── IMPACT METRICS ─────────────────────────────────────────────── */
    .cs-metric-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
      gap: 0;
      border-top: 1px solid var(--ink);
      border-left: 1px solid var(--ink);
      margin-top: 48px;
    }
    .cs-metric {
      padding: 32px 28px;
      border-right: 1px solid var(--ink);
      border-bottom: 1px solid var(--ink);
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .cs-metric--hero { background: var(--blue); color: #fff; }
    .cs-metric__num {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      letter-spacing: -0.05em;
      line-height: 0.9;
      font-size: clamp(48px, 5vw, 72px);
    }
    .cs-metric--hero .cs-metric__num { color: #fff; }
    .cs-metric__label {
      font-size: 14px;
      color: var(--ink-soft);
      line-height: 1.4;
    }
    .cs-metric--hero .cs-metric__label { color: rgba(255,255,255,0.8); }
    .cs-metric__context {
      margin-top: 8px;
      font-family: "JetBrains Mono", monospace;
      font-size: 10px;
      color: var(--muted);
      letter-spacing: 0.06em;
      line-height: 1.5;
    }
    .cs-metric--hero .cs-metric__context { color: rgba(255,255,255,0.5); }

    /* ─── BEFORE/AFTER TABLE ─────────────────────────────────────────── */
    .cs-ba-table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 48px;
      font-size: 14px;
    }
    .cs-ba-table th {
      text-align: left;
      padding: 12px 20px;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      border-bottom: 2px solid var(--ink);
    }
    .cs-ba-table th:last-child { color: var(--blue); }
    .cs-ba-table td {
      padding: 14px 20px;
      border-bottom: 1px solid var(--hairline);
      line-height: 1.45;
    }
    .cs-ba-table tr:hover td { background: var(--paper); }
    .cs-ba-table .arrow { color: var(--blue); font-weight: 700; text-align: center; }

    /* ─── COLLAB 3-COL ───────────────────────────────────────────────── */
    .cs-collab-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      border-top: 1px solid var(--ink);
      margin-top: 48px;
    }
    .cs-collab-item {
      padding: 32px 28px;
      border-bottom: 1px solid var(--ink);
      min-height: 320px;
      display: flex;
      flex-direction: column;
    }
    .cs-collab-item:not(:last-child) { border-right: 1px solid var(--ink); }
    .cs-collab-item__role {
      font-family: "JetBrains Mono", monospace;
      font-size: 10px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--muted);
    }
    .cs-collab-item__title {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      font-size: clamp(22px, 2.5vw, 32px);
      letter-spacing: -0.03em;
      margin: 16px 0 20px;
    }
    .cs-collab-item__body {
      font-size: 14px;
      line-height: 1.6;
      color: var(--ink-soft);
    }
    .cs-collab-item__outcome {
      margin-top: auto;
      padding-top: 20px;
      font-size: 13px;
      color: var(--blue);
      font-weight: 500;
      border-top: 1px solid var(--hairline);
    }

    /* ─── REFLECTION 2-COL ───────────────────────────────────────────── */
    .cs-reflect-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
      border-top: 1px solid var(--ink);
      margin-top: 48px;
    }
    .cs-reflect-col {
      padding: 32px;
    }
    .cs-reflect-col:first-child { border-right: 1px solid var(--ink); }
    .cs-reflect-col__header {
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 24px;
    }
    .cs-reflect-item {
      padding: 16px 0;
      border-bottom: 1px solid var(--hairline);
    }
    .cs-reflect-item__title {
      font-family: "Inter Tight", sans-serif;
      font-weight: 600;
      font-size: 16px;
      letter-spacing: -0.01em;
      margin-bottom: 6px;
    }
    .cs-reflect-item__body {
      font-size: 13px;
      line-height: 1.6;
      color: var(--ink-soft);
    }
    .cs-closing-quote {
      text-align: center;
      padding: 80px 32px;
      border-bottom: 1px solid var(--ink);
    }
    .cs-closing-quote__text {
      font-family: "Inter Tight", sans-serif;
      font-weight: 700;
      font-size: clamp(28px, 4vw, 56px);
      letter-spacing: -0.04em;
      line-height: 1.1;
      max-width: 800px;
      margin-inline: auto;
    }
    .cs-closing-quote__attr {
      margin-top: 24px;
      font-family: "JetBrains Mono", monospace;
      font-size: 11px;
      color: var(--muted);
      letter-spacing: 0.1em;
      text-transform: uppercase;
    }

    /* ─── RESPONSIVE ─────────────────────────────────────────────────── */
    @media (max-width: 1023px) {
      .cs-nav__sections { display: none; }
      .cs-3col { grid-template-columns: 1fr 1fr; }
      .cs-challenge-grid { grid-template-columns: repeat(2, 1fr); }
      .cs-init-grid { grid-template-columns: repeat(3, 1fr); }
      .cs-metric-grid { grid-template-columns: 1fr 1fr; }
      .cs-collab-grid { grid-template-columns: 1fr; }
      .cs-collab-item { border-right: none !important; }
      .cs-hero__bottom { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 767px) {
      .cs-section { padding: 48px 20px; }
      .cs-hero { padding: 24px 20px 0; }
      .cs-hero__top { flex-direction: column; }
      .cs-hero__meta { display: none; }
      .cs-hero__bottom { grid-template-columns: 1fr; }
      .cs-2col, .cs-2col--60-40, .cs-2col--40-60 { grid-template-columns: 1fr; gap: 32px; }
      .cs-3col { grid-template-columns: 1fr; }
      .cs-challenge-grid { grid-template-columns: 1fr 1fr; }
      .cs-init-grid { grid-template-columns: 1fr 1fr; }
      .cs-metric-grid { grid-template-columns: 1fr; }
      .cs-reflect-grid { grid-template-columns: 1fr; }
      .cs-reflect-col:first-child { border-right: none; border-bottom: 1px solid var(--ink); }
      .cs-token-grid { grid-template-columns: repeat(4, 1fr); }
      .cs-ba-table { font-size: 12px; }
    }

/* ─── HERO + CONTEXT IMAGES (case study) ─────────────────────────── */
.cs-hero-image {
  margin: 48px 0 0;
}
.cs-image-figure {
  margin: 48px 0 0;
}
.cs-image-figure figcaption {
  margin-top: 12px;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.cs-image-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: repeating-linear-gradient(135deg, rgba(10,10,10,0.04) 0 8px, transparent 8px 16px);
  border: 1px dashed var(--hairline);
  display: grid;
  place-items: center;
  border-radius: 4px;
}
.cs-image-placeholder span {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--muted);
}