:root {
    --bg: #ffffff;
    --bg-2: #f7f7f6;
    --bg-3: #f0efed;
    --paper: #fafafa;
    --ink: #0a0a0a;
    --ink-2: #1a1a1a;
    --ink-3: #3a3a3a;
    --muted: #737373;
    --muted-2: #a3a3a3;
    --line: rgba(10,10,10,0.10);
    --line-soft: rgba(10,10,10,0.06);
    --accent: #1e3a5f;
    --accent-deep: #142844;
    --accent-tint: rgba(30,58,95,0.07);
  }
  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
  body {
    font-family: "Geist", -apple-system, system-ui, sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.55;
    letter-spacing: -0.005em;
    -webkit-font-smoothing: antialiased;
  }
  .serif { font-family: "Geist", sans-serif; font-weight: 500; letter-spacing: -0.02em; }
  .mono { font-family: "Geist Mono", ui-monospace, monospace; letter-spacing: 0; }

  /* Sticky top */
  .topbar {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line-soft);
  }
  .topbar-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 16px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .topbar .mark {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 15px;
    letter-spacing: -0.015em;
  }
  .topbar .mark em { font-style: normal; color: var(--muted-2); font-weight: 400; margin: 0 4px; }
  .topbar nav {
    display: flex;
    gap: 28px;
    align-items: center;
  }
  .topbar nav a {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    text-decoration: none;
  }
  .topbar nav a:hover { color: var(--ink); }
  .topbar nav a.cta {
    background: var(--accent);
    color: var(--paper);
    padding: 8px 14px;
    border-radius: 999px;
    letter-spacing: 0.06em;
  }
  .topbar nav a.cta:hover { background: var(--accent-deep); color: white; }

  /* Containers */
  .container { max-width: 1320px; margin: 0 auto; padding: 0 40px; }
  .narrow { max-width: 960px; margin: 0 auto; padding: 0 40px; }

  /* Hero — magazine cover */
  .hero {
    padding: 56px 0 56px;
  }
  .hero-cover {
    max-width: 860px;
  }
  .hero-text { padding-bottom: 4px; }
  .hero-eyebrow {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 14px;
  }
  .hero-eyebrow::before {
    content: ""; display: inline-block;
    width: 36px; height: 1px; background: var(--accent);
  }
  .hero-title {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 80px;
    line-height: 0.98;
    letter-spacing: -0.035em;
    margin: 0 0 8px;
    color: var(--ink);
    text-wrap: balance;
  }
  .hero-title em { font-style: normal; color: var(--accent); font-weight: 500; }
  .hero-title .sm { font-size: 0.32em; display: block; margin-top: 20px; color: var(--muted); font-style: normal; font-weight: 400; letter-spacing: -0.015em; line-height: 1.3; }
  .hero-subtitle {
    font-family: "Geist", sans-serif;
    font-size: 17px;
    line-height: 1.5;
    color: var(--ink-3);
    margin: 28px 0 0;
    max-width: 460px;
  }

  /* Hero metric strip below cover */
  .hero-strip {
    margin-top: 56px;
    padding: 24px 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    border-top: 1px solid var(--ink);
    border-bottom: 1px solid var(--line);
    gap: 0;
  }
  .hero-strip .col {
    padding: 0 24px;
    border-right: 1px solid var(--line-soft);
  }
  .hero-strip .col:first-child { padding-left: 0; }
  .hero-strip .col:last-child { border-right: none; padding-right: 0; }

  /* Hero targeting line below strip */
  .hero-targeting {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--line-soft);
    display: flex;
    align-items: baseline;
    gap: 16px;
    flex-wrap: wrap;
  }
  .hero-targeting .lbl {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
    flex: 0 0 auto;
  }
  .hero-targeting .val {
    font-size: 14.5px;
    line-height: 1.5;
    color: var(--ink-2);
    letter-spacing: -0.005em;
  }
  .hero-targeting .val em { font-style: normal; color: var(--accent); font-weight: 500; }

  /* Inline delta pill (e.g., +660bps) */
  .delta-pill {
    display: inline-block;
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--accent);
    padding: 3px 7px;
    background: var(--accent-tint);
    border-radius: 4px;
    margin-left: 6px;
    vertical-align: 4px;
  }

  /* Validation epilogue (Amazon Teen) */
  .validation {
    margin-top: 48px;
    padding: 36px 36px 38px;
    background: var(--accent-tint);
    border-radius: 6px;
    border: 1px solid rgba(30,58,95,0.15);
    position: relative;
  }
  .validation::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 36px;
    width: 64px;
    height: 3px;
    background: var(--accent);
  }
  .validation .v-eyebrow {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 14px;
    font-weight: 500;
  }
  .validation .v-eyebrow .sep { opacity: 0.45; margin: 0 6px; }
  .validation .v-title {
    font-weight: 500;
    font-size: 26px;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 0 0 14px;
    text-wrap: balance;
    max-width: 720px;
  }
  .validation .v-title em { font-style: normal; color: var(--accent); font-weight: 500; }
  .validation .v-body {
    font-size: 15px;
    line-height: 1.6;
    color: var(--ink-2);
    margin: 0 0 26px;
    max-width: 720px;
  }
  .validation .v-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    padding-top: 22px;
    border-top: 1px solid rgba(30,58,95,0.18);
  }
  .validation .v-metrics .m .k {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
    opacity: 0.85;
  }
  .validation .v-metrics .m .v {
    font-weight: 500;
    font-size: 34px;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--ink);
  }
  .validation .v-metrics .m .v em { font-style: normal; color: var(--accent); font-weight: 500; }
  .validation .v-metrics .m .vsub {
    font-size: 12.5px;
    color: var(--muted);
    margin-top: 8px;
    font-style: italic;
  }

  /* Cross-org leadership callout (Alexa) */
  .cross-org {
    margin-top: 40px;
    padding: 28px 32px;
    background: var(--bg-2);
    border-left: 3px solid var(--accent);
    border-radius: 0 6px 6px 0;
    max-width: 1100px;
  }
  .cross-org .co-eyebrow {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
    font-weight: 500;
  }
  .cross-org .co-title {
    font-weight: 500;
    font-size: 22px;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 0 0 12px;
  }
  .cross-org .co-title em { font-style: normal; color: var(--accent); font-weight: 500; }
  .cross-org .co-body {
    font-size: 15px;
    line-height: 1.6;
    color: var(--ink-2);
    margin: 0;
  }

  /* Two-pillar sub-structure (AWS) */
  .pillar {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--line-soft);
  }
  .pillar:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }
  .pillar-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
    flex-wrap: wrap;
  }
  .pillar-head .pnum {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    padding: 6px 10px;
    background: var(--accent);
    color: white;
    border-radius: 3px;
    font-weight: 500;
  }
  .pillar-head .status {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 4px 9px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--bg);
    color: var(--muted);
  }
  .pillar-head .status.live { color: #2a6549; border-color: rgba(42,101,73,0.30); background: rgba(42,101,73,0.06); }
  .pillar-head .status.inprogress { color: #a04030; border-color: rgba(160,64,48,0.30); background: rgba(160,64,48,0.06); }
  .pillar h3.pillar-title {
    font-weight: 500;
    font-size: 32px;
    line-height: 1.08;
    letter-spacing: -0.028em;
    margin: 0 0 18px;
    text-wrap: balance;
    width: 100%;
  }
  .pillar h3.pillar-title em { font-style: normal; color: var(--accent); font-weight: 500; }
  .pillar .pillar-lede {
    font-size: 16px;
    line-height: 1.55;
    color: var(--ink-2);
    margin: 0 0 32px;
    max-width: 880px;
  }
  .hero-strip .col .k {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 10px;
  }
  .hero-strip .col .v {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 32px;
    line-height: 1;
    letter-spacing: -0.025em;
    color: var(--ink);
  }
  .hero-strip .col .v em { font-style: normal; color: var(--accent); font-weight: 400; }
  .hero-strip .col .vsub {
    font-size: 12px;
    color: var(--muted);
    margin-top: 6px;
  }

  /* About */
  .about-section { padding: 100px 0 80px; }
  .section-eyebrow {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 24px;
  }
  .section-title {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 44px;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin: 0 0 40px;
    text-wrap: balance;
    max-width: 920px;
  }
  .section-title em { font-style: normal; color: var(--accent); font-weight: 500; }
  .about-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    max-width: 1100px;
  }
  .about-cols p {
    font-size: 17px;
    line-height: 1.6;
    color: var(--ink-2);
    margin: 0 0 18px;
  }

  /* Pull-quote divider */
  .pullquote {
    padding: 80px 0;
    text-align: center;
  }
  .pullquote .q {
    font-family: "Geist", sans-serif;
    font-weight: 400;
    font-size: 36px;
    line-height: 1.22;
    letter-spacing: -0.025em;
    color: var(--ink);
    max-width: 880px;
    margin: 0 auto;
    text-wrap: balance;
  }
  .pullquote .q span { color: var(--accent); font-weight: 500; }
  .pullquote .attr {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin-top: 28px;
  }

  /* Work section */
  .work-section { padding: 60px 0 100px; }
  .work-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--ink);
    padding-bottom: 28px;
  }
  .work-head .right {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    text-align: right;
  }

  /* Case study — spread layout */
  .case {
    margin-bottom: 96px;
    padding-bottom: 96px;
    border-bottom: 1px solid var(--line);
  }
  .case:last-child { border-bottom: none; margin-bottom: 0; }
  .case-num {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 14px;
  }
  .case-num::before { content: ""; flex: 0 0 28px; height: 1px; background: var(--accent); }
  .case-num .meta {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-style: normal;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
  }

  .case-hero {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 56px;
    align-items: end;
    margin-bottom: 56px;
  }
  .case-title {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 46px;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin: 0 0 28px;
    text-wrap: balance;
  }
  .case-title em { font-style: normal; color: var(--accent); font-weight: 500; }
  .case-lede {
    font-size: 18px;
    line-height: 1.55;
    color: var(--ink-2);
    margin: 0 0 24px;
    max-width: 580px;
  }
  .case-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }
  .case-tags span {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-3);
    padding: 5px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
  }
  .case-tags span.accent {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-tint);
  }

  /* Big visual on right of case-hero */
  .case-visual {
    aspect-ratio: 4 / 5;
    background:
      repeating-linear-gradient(135deg, rgba(22,19,16,0.04) 0 12px, transparent 12px 24px),
      var(--paper);
    border: 1px solid var(--line);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
  }
  .case-visual::after {
    content: attr(data-label);
    position: absolute;
    bottom: 16px; left: 16px;
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
  }
  .case-visual .vnum {
    position: absolute; top: 16px; right: 16px;
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
  }

  /* Case visual holding real product screenshots — phone pair */
  .case-visual.shots {
    background:
      radial-gradient(ellipse at 50% 30%, rgba(30,58,95,0.10), transparent 65%),
      var(--accent-tint);
    border-color: rgba(30,58,95,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .case-visual.shots::after {
    color: var(--accent);
    z-index: 3;
  }
  .phone-pair {
    position: relative;
    width: 100%;
    height: 100%;
  }
  .phone {
    position: absolute;
    width: 47%;
    border-radius: 18px;
    background: #fff;
    border: 5px solid #15110d;
    box-shadow: 0 18px 40px -14px rgba(20,30,50,0.45);
    overflow: hidden;
  }
  .phone img { width: 100%; height: auto; display: block; }
  .phone.back {
    top: 9%;
    right: 8%;
    transform: rotate(4deg);
    z-index: 1;
  }
  .phone.front {
    bottom: 7%;
    left: 8%;
    transform: rotate(-3deg);
    z-index: 2;
  }

  /* Pair of already-framed screenshots (device bezel baked into PNG) */
  .case-visual.shots-bare {
    background:
      radial-gradient(ellipse at 50% 30%, rgba(30,58,95,0.10), transparent 65%),
      var(--accent-tint);
    border-color: rgba(30,58,95,0.15);
    overflow: hidden;
  }
  .shot-bare {
    position: absolute;
    width: 50%;
    height: auto;
    filter: drop-shadow(0 16px 34px rgba(20,30,50,0.40));
  }
  .shot-bare.back { top: 6%; right: 6%; transform: rotate(4deg); z-index: 1; }
  .shot-bare.front { bottom: 5%; left: 6%; transform: rotate(-3deg); z-index: 2; }

  /* Full-width device banner (landscape asset, e.g. Echo Show) */
  .device-banner {
    margin: 8px 0 56px;
    border-radius: 8px;
    background:
      radial-gradient(ellipse at 50% 20%, rgba(30,58,95,0.12), transparent 70%),
      var(--accent-tint);
    border: 1px solid rgba(30,58,95,0.15);
    padding: 40px 40px 24px;
    position: relative;
  }
  .device-banner img {
    display: block;
    width: 100%;
    max-width: 880px;
    margin: 0 auto;
    height: auto;
  }
  .device-banner .cap {
    text-align: center;
    margin-top: 18px;
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
  }

  /* Case metric row */
  .case-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr) 1.5fr;
    gap: 32px;
    margin-bottom: 56px;
    padding: 28px 0;
    border-top: 1px solid var(--ink);
    border-bottom: 1px solid var(--line);
  }
  .case-metrics .m .k {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
  }
  .case-metrics .m .v {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 40px;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--ink);
  }
  .case-metrics .m .v em { font-style: normal; color: var(--accent); font-weight: 500; }
  .case-metrics .m .delta {
    font-size: 12px;
    color: var(--muted);
    margin-top: 8px;
    font-style: italic;
  }
  .case-metrics .m.spark .spark-wrap { margin-top: 12px; height: 60px; }
  .case-metrics .m.spark svg { width: 100%; height: 100%; display: block; }

  /* PIDO grid */
  .pido {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 56px;
    max-width: 1100px;
  }
  .pido .item .k {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
  }
  .pido .item p {
    margin: 0;
    font-size: 15.5px;
    line-height: 1.6;
    color: var(--ink-2);
  }

  /* Press row */
  .case-press {
    margin-top: 40px;
    padding: 22px 0;
    border-top: 1px solid var(--line-soft);
    display: flex;
    align-items: center;
    gap: 28px;
    flex-wrap: wrap;
  }
  .case-press .lbl {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
  }
  .case-press .pn {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 14px;
    color: var(--ink-3);
    letter-spacing: -0.005em;
    text-decoration: none;
    transition: color 0.15s, border-color 0.15s;
    border-bottom: 1px solid transparent;
    padding-bottom: 1px;
  }
  a.case-press-link:hover { color: var(--accent); border-bottom-color: var(--accent); }

  /* How I Work */
  .how-section { padding: 100px 0; background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .how-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px 80px;
    margin-top: 56px;
  }
  .principle .pnum {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 14px;
  }
  .principle h3 {
    font-family: "Geist", sans-serif;
    font-size: 24px;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 0 0 16px;
    text-wrap: balance;
  }
  .principle h3 em { font-style: normal; color: var(--accent); font-weight: 500; }
  .principle p {
    margin: 0;
    font-size: 15.5px;
    line-height: 1.6;
    color: var(--ink-2);
  }

  /* Experience */
  .exp-section { padding: 100px 0; }
  .exp-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 48px;
    margin-top: 56px;
  }
  .exp-side .es-head {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 22px;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 10px;
  }
  .exp-side .es-head em { font-style: normal; color: var(--accent); font-weight: 500; }
  .exp-side .es-sub {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.06em;
  }
  .exp-rows {
    display: grid;
    gap: 0;
  }
  .exp-row {
    display: grid;
    grid-template-columns: 100px 1fr 110px;
    gap: 28px;
    padding: 18px 0;
    border-top: 1px solid var(--line-soft);
    align-items: baseline;
  }
  .exp-row:first-child { border-top: 1px solid var(--ink); }
  .exp-row .co {
    font-family: "Geist", sans-serif;
    font-style: normal;
    font-weight: 500;
    font-size: 13px;
    color: var(--accent);
    letter-spacing: -0.005em;
  }
  .exp-row .role {
    font-size: 15px;
    color: var(--ink);
    font-weight: 500;
  }
  .exp-row .role .rsub { display: block; font-size: 13px; color: var(--muted); margin-top: 3px; font-weight: 400; font-style: italic; }
  .exp-row .yr {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    color: var(--muted);
    text-align: right;
    letter-spacing: 0.04em;
  }

  /* Contact */
  .contact-section {
    padding: 100px 0;
    background: var(--accent);
    color: var(--paper);
    position: relative;
    overflow: hidden;
  }
  .contact-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 80% 20%, rgba(255,255,255,0.04), transparent 50%);
    pointer-events: none;
  }
  .contact-inner { position: relative; }
  .contact-section .section-eyebrow { color: rgba(255,255,255,0.6); }
  .contact-section .ct-title {
    font-family: "Geist", sans-serif;
    font-weight: 500;
    font-size: 56px;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin: 0 0 32px;
    max-width: 900px;
    text-wrap: balance;
  }
  .contact-section .ct-title em { font-style: normal; color: #c4d4eb; font-weight: 500; }
  .contact-section .ct-body {
    font-size: 17px;
    color: rgba(255,255,255,0.78);
    margin: 0 0 40px;
    max-width: 620px;
    line-height: 1.55;
  }
  .contact-links {
    display: flex;
    gap: 18px;
    align-items: center;
    flex-wrap: wrap;
  }
  .contact-links a {
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--paper);
    text-decoration: none;
    padding: 12px 20px;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 999px;
    transition: background 0.15s, border-color 0.15s;
  }
  .contact-links a:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.45); }
  .contact-links a.primary {
    background: var(--paper);
    color: var(--accent-deep);
    border-color: var(--paper);
  }
  .contact-links a.primary:hover { background: white; }

  /* Footer */
  .footer {
    padding: 28px 40px;
    max-width: 1320px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.04em;
  }

  /* =========================================================
     HAMBURGER TOGGLE
     ========================================================= */
  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px 4px;
    -webkit-tap-highlight-color: transparent;
  }
  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 1px;
    transition: transform 0.22s ease, opacity 0.18s ease;
    transform-origin: center;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* =========================================================
     MOBILE NAV OVERLAY
     ========================================================= */
  .mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding-top: 57px;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 49;
    flex-direction: column;
    padding-left: 24px;
    padding-right: 24px;
    padding-bottom: 32px;
    overflow-y: auto;
  }
  .mobile-nav.open {
    display: flex;
  }
  .mobile-nav a {
    font-family: "Geist", sans-serif;
    font-size: 26px;
    font-weight: 500;
    letter-spacing: -0.025em;
    color: var(--ink);
    text-decoration: none;
    padding: 18px 0;
    border-bottom: 1px solid var(--line-soft);
  }
  .mobile-nav a:first-child {
    margin-top: 20px;
    border-top: 1px solid var(--line-soft);
  }
  .mobile-nav a.cta {
    margin-top: 28px;
    background: var(--accent);
    color: white;
    padding: 16px 24px;
    border-radius: 999px;
    border-top: none;
    border-bottom: none;
    text-align: center;
    font-family: "Geist Mono", ui-monospace, monospace;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  /* =========================================================
     RESPONSIVE — TABLET  ≤ 960px
     ========================================================= */
  @media (max-width: 960px) {
    .topbar nav { display: none; }
    .nav-toggle { display: flex; }

    .container { padding: 0 28px; }
    .narrow   { padding: 0 28px; }

    /* Hero */
    .hero-title { font-size: 60px; }
    .hero-strip { grid-template-columns: repeat(2, 1fr); }
    .hero-strip .col:nth-child(even) { border-right: none; }

    /* About */
    .about-cols { grid-template-columns: 1fr; gap: 0; }
    .section-title { font-size: 36px; }

    /* Pullquote */
    .pullquote .q { font-size: 28px; }

    /* Work head */
    .work-head { flex-direction: column; align-items: flex-start; gap: 12px; }
    .work-head .right { text-align: left; }

    /* Case */
    .case-hero { grid-template-columns: 1fr; gap: 32px; }
    .case-visual, .case-visual.shots, .case-visual.shots-bare { display: none; }
    .case-title { font-size: 38px; }
    .case-metrics { grid-template-columns: repeat(2, 1fr); }
    .case-metrics .m.spark { grid-column: 1 / -1; }

    /* PIDO */
    .pido { grid-template-columns: 1fr; gap: 32px; }

    /* Validation */
    .validation .v-metrics { grid-template-columns: repeat(2, 1fr); }
    .validation .v-title { font-size: 22px; }

    /* Cross-org */
    .cross-org .co-title { font-size: 20px; }

    /* Pillar */
    .pillar h3.pillar-title { font-size: 28px; }

    /* How */
    .how-grid { grid-template-columns: 1fr; gap: 44px; }

    /* Experience */
    .exp-grid { grid-template-columns: 1fr; gap: 12px; }
    .exp-row { grid-template-columns: 1fr 110px; gap: 16px; }
    .exp-row .co { display: none; }

    /* Contact */
    .contact-section .ct-title { font-size: 42px; }
  }

  /* =========================================================
     RESPONSIVE — MOBILE  ≤ 600px
     ========================================================= */
  @media (max-width: 600px) {
    .topbar-inner { padding: 14px 18px; }
    .container { padding: 0 18px; }
    .narrow   { padding: 0 18px; }

    /* Hero */
    .hero { padding: 36px 0 32px; }
    .hero-eyebrow { font-size: 10px; letter-spacing: 0.1em; }
    .hero-title { font-size: 40px; }
    .hero-title .sm { font-size: 0.38em; margin-top: 14px; }
    .hero-subtitle { font-size: 15px; margin-top: 20px; }
    .hero-strip { margin-top: 36px; }
    .hero-strip .col { padding: 0 14px; }
    .hero-strip .col:first-child { padding-left: 0; }
    .hero-strip .col .v { font-size: 26px; }
    .hero-strip .col .vsub { font-size: 11px; }

    /* About */
    .about-section { padding: 64px 0 48px; }
    .about-cols p { font-size: 15.5px; }
    .section-title { font-size: 28px; }

    /* Pullquote */
    .pullquote { padding: 56px 0; }
    .pullquote .q { font-size: 22px; }

    /* Work */
    .work-section { padding: 40px 0 64px; }

    /* Case */
    .case { margin-bottom: 64px; padding-bottom: 64px; }
    .case-hero { margin-bottom: 32px; }
    .case-title { font-size: 28px; }
    .case-lede { font-size: 15px; }
    .case-metrics { gap: 20px; padding: 18px 0; margin-bottom: 32px; }
    .case-metrics .m .v { font-size: 30px; }

    /* Validation */
    .validation { padding: 24px 20px 28px; }
    .validation .v-title { font-size: 19px; }
    .validation .v-metrics { grid-template-columns: 1fr; gap: 20px; }
    .validation .v-metrics .m .v { font-size: 28px; }

    /* Cross-org */
    .cross-org { padding: 20px; }
    .cross-org .co-title { font-size: 17px; }

    /* Pillar */
    .pillar h3.pillar-title { font-size: 22px; }

    /* Device banner */
    .device-banner { padding: 24px 16px 16px; }

    /* How */
    .how-section { padding: 64px 0; }
    .how-grid { margin-top: 36px; gap: 32px; }
    .principle h3 { font-size: 20px; }

    /* Experience */
    .exp-section { padding: 64px 0; }
    .exp-grid { margin-top: 28px; }
    .exp-row { grid-template-columns: 1fr; gap: 2px; }
    .exp-row .yr { text-align: left; }

    /* Contact */
    .contact-section { padding: 64px 0; }
    .contact-section .ct-title { font-size: 28px; }
    .contact-section .ct-body { font-size: 15px; }

    /* Footer */
    .footer { padding: 20px 18px; flex-direction: column; gap: 6px; }
  }