/* Layout: left-aligned editorial column on a blueprint-grid ground. Two signal colors carry meaning
     everywhere on the page: cool = deterministic rails, hot = model reasoning. Single dark look by choice. */
  :root {
    color-scheme: dark;
    --bg: #0a0e1f;
    --surface: #111634;
    --surface-2: #181e44;
    --line: #2a3163;
    --grid: rgba(120, 136, 220, 0.11);
    --fg: #eef0fa;
    --muted: #a5abcb;
    --hot: #ff7a1a;
    --hot-soft: rgba(255, 122, 26, 0.14);
    --hot-ink: #170a00;
    --cool: #6fd3ff;
    --cool-soft: rgba(111, 211, 255, 0.12);

    --display: "Archivo", "Arial Black", "Helvetica Neue", Arial, sans-serif;
    --body: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

    --step--1: 0.8125rem;
    --step-0: 1.0625rem;
    --step-1: 1.25rem;
    --step-2: clamp(1.45rem, 2.4vw, 1.9rem);
    --step-3: clamp(2rem, 4.6vw, 3.3rem);
    --step-4: clamp(2.5rem, 6.4vw, 4.8rem);
  }

  *, *::before, *::after { box-sizing: border-box; }
  img { max-width: 100%; }
  html { scroll-padding-top: 5rem; }
  @media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--body);
    font-size: var(--step-0);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }
  h1, h2, h3, p, dl, dd, ul, ol { margin: 0; }
  ul, ol { padding: 0; list-style: none; }
  a { color: inherit; }
  :focus-visible { outline: 2px solid var(--cool); outline-offset: 3px; border-radius: 4px; }

  .wrap { max-width: 1140px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 40px); }

  .display {
    font-family: var(--display);
    font-stretch: 118%;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1;
    text-wrap: balance;
  }
  .label {
    font-family: var(--mono);
    font-size: var(--step--1);
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--muted);
  }
  .hot { color: var(--hot); }
  .cool { color: var(--cool); }

  /* ---------- nav ---------- */
  .nav {
    position: sticky;
    top: env(safe-area-inset-top, 0px);
    z-index: 10;
    background: rgba(10, 14, 31, 0.82);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .nav-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.75rem; }
  .brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; font-weight: 600; }
  .brand-mark {
    display: grid; place-items: center;
    width: 2.1rem; height: 2.1rem;
    background: var(--hot); color: var(--hot-ink);
    font-family: var(--display); font-stretch: 118%; font-weight: 800; font-size: 0.9rem; letter-spacing: -0.03em;
  }
  .nav-links { display: flex; align-items: center; gap: clamp(0.9rem, 2.4vw, 1.9rem); }
  .nav-links a { text-decoration: none; font-size: 0.95rem; color: var(--muted); }
  .nav-links a:hover { color: var(--fg); }
  .nav-links a.nav-cta { color: var(--fg); border: 1px solid var(--line); padding: 0.4rem 0.9rem; }
  .nav-links a.nav-cta:hover { border-color: var(--hot); }
  @media (max-width: 720px) { .nav-links a:not(.nav-cta) { display: none; } }

  /* ---------- buttons ---------- */
  .btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.85rem 1.35rem;
    font-family: var(--body); font-size: 1rem; font-weight: 600;
    text-decoration: none; border: 1px solid transparent; cursor: pointer;
    transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
  }
  .btn-primary { background: var(--hot); color: var(--hot-ink); }
  .btn-primary:hover { transform: translateY(-2px); }
  .btn-ghost { background: transparent; color: var(--fg); border-color: var(--line); }
  .btn-ghost:hover { border-color: var(--cool); }
  @media (prefers-reduced-motion: reduce) { .btn { transition: none; } .btn-primary:hover { transform: none; } }

  /* ---------- hero ---------- */
  .hero { position: relative; overflow: hidden; padding-block: clamp(3rem, 7vw, 5.5rem) clamp(3rem, 7vw, 5rem); }
  .hero::before {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background-image:
      radial-gradient(60rem 30rem at 88% -10%, var(--hot-soft), transparent 62%),
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: auto, 44px 44px, 44px 44px;
    -webkit-mask-image: linear-gradient(to bottom, #000 55%, transparent);
    mask-image: linear-gradient(to bottom, #000 55%, transparent);
  }
  .hero-grid { position: relative; display: grid; gap: clamp(2.5rem, 5vw, 4rem); align-items: center; }
  @media (min-width: 940px) { .hero-grid { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); } }
  .hero-copy { display: grid; gap: 1.6rem; min-width: 0; }
  .hero h1 { font-size: var(--step-4); font-stretch: 112%; overflow-wrap: break-word; }
  .hero-id { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 1.1rem 1.4rem; }
  .hero-id .hero-lede { flex: 1 1 18rem; min-width: 0; }
  .portrait { width: 6.5rem; height: 6.5rem; flex: none; object-fit: cover; display: block; border: 1px solid var(--line); box-shadow: 6px 6px 0 var(--hot); }
  .post-end .byline { display: flex; align-items: center; gap: 1rem; }
  .post-end .byline .portrait { width: 3.75rem; height: 3.75rem; box-shadow: 4px 4px 0 var(--hot); }
  .hero-lede { font-size: var(--step-1); line-height: 1.5; color: var(--muted); max-width: 34rem; }
  .hero-lede strong { color: var(--fg); font-weight: 600; }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; }
  .hero-facts { display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem; padding-top: 0.4rem; }
  .hero-facts li { display: flex; align-items: center; gap: 0.55rem; font-size: 0.95rem; color: var(--muted); }
  .hero-facts li::before { content: ""; width: 6px; height: 6px; background: var(--cool); flex: none; }

  /* ---------- trace (signature element) ---------- */
  .trace { min-width: 0; background: var(--surface); border: 1px solid var(--line); box-shadow: 10px 10px 0 var(--surface-2); }
  .trace-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 0.9rem 1.1rem; border-bottom: 1px solid var(--line); }
  .trace-head strong { font-family: var(--display); font-stretch: 118%; font-weight: 700; font-size: 1.05rem; }
  .trace-steps { padding: 0.5rem 0; }
  .step {
    position: relative;
    display: grid; grid-template-columns: 2.6rem minmax(0, 1fr); column-gap: 0.4rem;
    padding: 0.62rem 1.1rem 0.62rem 2.3rem;
    transition: background-color 0.3s ease;
  }
  .step::before { /* rail */
    content: ""; position: absolute; left: 1.32rem; top: 0; bottom: 0; width: 2px; background: var(--line);
  }
  .step:first-child::before { top: 50%; }
  .step:last-child::before { bottom: 50%; }
  .step::after { /* node */
    content: ""; position: absolute; left: calc(1.32rem - 5px); top: 1.05rem;
    width: 12px; height: 12px; border-radius: 50%;
    background: var(--surface); border: 2px solid var(--tone);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
  }
  .step.is-rail { --tone: var(--cool); --tone-soft: var(--cool-soft); }
  .step.is-model { --tone: var(--hot); --tone-soft: var(--hot-soft); }
  .step-id { font-family: var(--mono); font-size: var(--step--1); color: var(--muted); padding-top: 0.22rem; }
  .step-name { font-family: var(--mono); font-size: 0.9rem; font-weight: 500; letter-spacing: 0.08em; color: var(--tone); }
  .step-desc { display: block; font-size: 0.95rem; line-height: 1.4; color: var(--muted); }
  .step.is-active { background: var(--tone-soft); }
  .step.is-active::after { background: var(--tone); box-shadow: 0 0 0 5px var(--tone-soft); }
  .step.is-active .step-desc { color: var(--fg); }
  .step.guard { padding-block: 0.3rem; }
  .step.guard::after { display: none; }
  .step.guard .step-desc { grid-column: 1 / -1; font-family: var(--mono); font-size: var(--step--1); }
  .step.guard.is-active .step-desc { color: var(--hot); }
  .trace-foot { display: flex; flex-wrap: wrap; gap: 0.4rem 1.3rem; padding: 0.85rem 1.1rem; border-top: 1px solid var(--line); }
  .key { display: flex; align-items: center; gap: 0.5rem; font-family: var(--mono); font-size: var(--step--1); color: var(--muted); }
  .key i { width: 10px; height: 10px; border-radius: 50%; flex: none; }
  .key .k-cool { background: var(--cool); }
  .key .k-hot { background: var(--hot); }
  @media (prefers-reduced-motion: reduce) { .step, .step::after { transition: none; } }

  /* ---------- launch list (hero) ---------- */
  .launch { min-width: 0; background: var(--surface); border: 1px solid var(--line); box-shadow: 10px 10px 0 var(--surface-2); }
  .launch-list a { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0.15rem; padding: 0.95rem 1.1rem; border-bottom: 1px solid var(--line); text-decoration: none; transition: background-color 0.15s ease; }
  .launch-list li:last-child a { border-bottom: 0; }
  .launch-list a:hover { background: var(--hot-soft); }
  .launch-tag { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.08em; text-transform: uppercase; color: var(--cool); }
  .launch-name { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: 1.3rem; letter-spacing: -0.015em; line-height: 1.2; }
  .launch-name i { font-style: normal; color: var(--hot); }
  .launch-desc { font-size: 0.95rem; color: var(--muted); line-height: 1.4; }
  .launch-more { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); text-decoration: none; }
  .launch-more:hover { color: var(--hot); }
  .approach-top { display: grid; gap: clamp(2rem, 4vw, 3.5rem); align-items: center; margin-bottom: clamp(2rem, 4vw, 3.2rem); }
  @media (min-width: 940px) { .approach-top { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); } }
  .approach-top .sec-head { margin-bottom: 0; }
  .role-body h3 em, .offer p em { font-style: italic; }

  /* ---------- sections ---------- */
  main > section:not(.hero) { padding-block: clamp(3.5rem, 8vw, 6.5rem); border-top: 1px solid var(--line); }
  .sec-head { display: grid; gap: 0.9rem; margin-bottom: clamp(2rem, 4vw, 3.2rem); max-width: 46rem; }
  .sec-head h2 { font-size: var(--step-3); }
  .sec-head p { color: var(--muted); font-size: var(--step-1); line-height: 1.5; }

  /* approach */
  .pillars { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
  @media (min-width: 820px) { .pillars { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
  .pillar { background: var(--bg); padding: clamp(1.4rem, 3vw, 2.1rem); display: grid; gap: 0.8rem; align-content: start; min-width: 0; }
  .pillar h3 { font-family: var(--display); font-stretch: 118%; font-weight: 800; font-size: var(--step-2); letter-spacing: -0.02em; }
  .pillar p { color: var(--muted); }
  .thesis { margin-top: clamp(2rem, 4vw, 3rem); font-size: var(--step-2); line-height: 1.3; max-width: 50rem; font-weight: 500; text-wrap: balance; }

  /* builds */
  .builds { display: grid; gap: 1.4rem; }
  .build { background: var(--surface); border: 1px solid var(--line); display: grid; min-width: 0; }
  @media (min-width: 900px) { .build.feature { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); } }
  .build-main { padding: clamp(1.4rem, 3.2vw, 2.4rem); display: grid; gap: 1rem; align-content: start; min-width: 0; }
  .build-main h3 { font-family: var(--display); font-stretch: 118%; font-weight: 800; font-size: var(--step-3); letter-spacing: -0.02em; line-height: 1; }
  .build-main p { color: var(--muted); max-width: 36rem; }
  .build-main p.lead { color: var(--fg); font-size: var(--step-1); line-height: 1.45; }
  .status { display: inline-flex; align-items: center; gap: 0.5rem; justify-self: start; font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--hot); }
  .status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--hot); flex: none; }
  .status.cool { color: var(--cool); }
  .status.cool::before { background: var(--cool); }
  .spec { background: var(--surface-2); padding: clamp(1.4rem, 3.2vw, 2.4rem); display: grid; align-content: start; min-width: 0; }
  .spec > div { display: grid; grid-template-columns: 6.2rem minmax(0, 1fr); gap: 0.9rem; padding-block: 0.7rem; border-bottom: 1px solid var(--line); }
  .spec > div:first-child { padding-top: 0; }
  .spec > div:last-child { border-bottom: 0; padding-bottom: 0; }
  .spec dt { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); padding-top: 0.18rem; }
  .spec dd { font-size: 0.98rem; line-height: 1.45; font-variant-numeric: tabular-nums; }
  .chain { font-family: var(--mono); font-size: 0.9rem; }
  .chain b { font-weight: 500; color: var(--cool); }
  .chain b.m { color: var(--hot); }
  .pair { display: grid; gap: 1.4rem; }
  @media (min-width: 760px) { .pair { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  .pair .build-main h3 { font-size: var(--step-2); }

  /* lab list */
  .lab { margin-top: clamp(2.2rem, 5vw, 3.4rem); }
  .lab-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 0.5rem 1.5rem; padding-bottom: 0.9rem; border-bottom: 2px solid var(--fg); }
  .lab-head h3 { font-family: var(--display); font-stretch: 118%; font-weight: 800; font-size: var(--step-2); letter-spacing: -0.02em; }
  .lab-head p { color: var(--muted); font-size: 0.95rem; }
  .lab-row { display: grid; gap: 0.2rem 1.5rem; padding-block: 0.95rem; border-bottom: 1px solid var(--line); align-items: baseline; }
  @media (min-width: 760px) { .lab-row { grid-template-columns: 15rem minmax(0, 1fr) auto; } }
  .lab-row strong { font-weight: 600; }
  .lab-row strong a { text-decoration-color: var(--hot); text-underline-offset: 4px; }
  .lab-row strong a:hover { color: var(--hot); }
  .lab-row span { color: var(--muted); min-width: 0; }
  .lab-row em { font-style: normal; font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--cool); }

  /* advisory */
  .offers { display: grid; gap: 0; border-top: 1px solid var(--line); }
  .offer { display: grid; gap: 0.4rem 2rem; padding-block: 1.5rem; border-bottom: 1px solid var(--line); }
  @media (min-width: 820px) { .offer { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); align-items: baseline; } }
  .offer h3 { font-family: var(--display); font-stretch: 118%; font-weight: 700; font-size: var(--step-2); letter-spacing: -0.015em; line-height: 1.1; }
  .offer p { color: var(--muted); }
  .offer p a, .hero-facts a { color: inherit; text-decoration-color: var(--hot); text-underline-offset: 3px; }
  .offer p a:hover, .hero-facts a:hover { color: var(--hot); }
  .role-body .btn { margin-top: 0.3rem; }
  .aside { margin-top: 1.6rem; color: var(--muted); max-width: 44rem; }
  .aside strong { color: var(--fg); font-weight: 600; }

  /* experience */
  .sides { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
  @media (min-width: 820px) { .sides { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); } }
  .side { background: var(--surface); padding: clamp(1.4rem, 3vw, 2.1rem); display: grid; gap: 0.8rem; align-content: start; min-width: 0; }
  .side p { color: var(--muted); }
  .side p.side-names { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: var(--step-2); line-height: 1.25; letter-spacing: -0.015em; color: var(--fg); text-wrap: balance; }
  .offers.seen { margin-block: clamp(1.6rem, 3vw, 2.4rem) clamp(1rem, 2vw, 1.6rem); border-top: 0; }
  .roles { display: grid; }
  .role { display: grid; gap: 0.5rem 2rem; padding-block: 1.6rem; border-top: 1px solid var(--line); }
  @media (min-width: 820px) { .role { grid-template-columns: 9rem minmax(0, 1fr); } }
  .role-body { display: grid; gap: 0.5rem; max-width: 44rem; min-width: 0; }
  .role-body h3 { font-size: var(--step-1); font-weight: 600; line-height: 1.3; }
  .role-body h3 span { color: var(--muted); font-weight: 400; }
  .role-body p { color: var(--muted); }
  .role-body ul { display: grid; gap: 0.4rem; color: var(--muted); }
  .role-body ul li { padding-left: 1.1rem; position: relative; }
  .role-body ul li::before { content: ""; position: absolute; left: 0; top: 0.7em; width: 6px; height: 2px; background: var(--hot); }
  .chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: clamp(1.6rem, 3vw, 2.2rem); }
  .chips li { font-family: var(--mono); font-size: var(--step--1); padding: 0.35rem 0.7rem; border: 1px solid var(--line); color: var(--muted); }

  /* blog */
  .posts { border-top: 2px solid var(--fg); }
  .post-row { display: grid; gap: 0.4rem 2rem; padding-block: 1.5rem; border-bottom: 1px solid var(--line); text-decoration: none; transition: background-color 0.15s ease; }
  @media (min-width: 820px) { .post-row { grid-template-columns: 9rem minmax(0, 1fr) auto; align-items: baseline; } }
  .post-row:hover h3 { color: var(--hot); }
  .post-row time { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
  .post-row h3 { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: var(--step-2); letter-spacing: -0.015em; line-height: 1.15; text-wrap: balance; transition: color 0.15s ease; }
  .post-row p { color: var(--muted); margin-top: 0.4rem; max-width: 40rem; }
  .post-row .read { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--hot); white-space: nowrap; }
  .post-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.8rem; }
  .page-head { padding-block: clamp(3rem, 7vw, 5rem) clamp(1.5rem, 3vw, 2.5rem); }
  .page-head h1 { font-size: var(--step-3); margin-block: 0.9rem; max-width: 22ch; }
  .page-head p.lede { font-size: var(--step-1); line-height: 1.5; color: var(--muted); max-width: 40rem; }
  .back { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); text-decoration: none; }
  .back:hover { color: var(--hot); }
  .page-body { padding-bottom: clamp(3.5rem, 8vw, 6rem); }
  .prose { max-width: 42rem; font-size: 1.125rem; line-height: 1.7; display: grid; gap: 1.25rem; }
  .prose h2 { font-family: var(--display); font-stretch: 112%; font-weight: 700; font-size: var(--step-2); letter-spacing: -0.015em; line-height: 1.2; margin-top: 1.2rem; text-wrap: balance; }
  .prose h3 { font-size: var(--step-1); font-weight: 600; margin-top: 0.6rem; }
  .prose p, .prose li { color: #d5d9ee; }
  .prose strong { color: var(--fg); font-weight: 600; }
  .prose a { color: var(--cool); text-underline-offset: 3px; }
  .prose ul, .prose ol { display: grid; gap: 0.5rem; padding-left: 1.3rem; }
  .prose ul { list-style: square; }
  .prose ol { list-style: decimal; }
  .prose li::marker { color: var(--hot); }
  .prose blockquote { margin: 0; padding: 0.2rem 0 0.2rem 1.2rem; border-left: 3px solid var(--hot); font-size: var(--step-1); }
  .prose code { font-family: var(--mono); font-size: 0.9em; background: var(--surface-2); padding: 0.1em 0.35em; }
  .prose pre { margin: 0; padding: 1rem; background: var(--surface); border: 1px solid var(--line); overflow-x: auto; }
  .prose pre code { background: none; padding: 0; }
  .post-end { max-width: 42rem; margin-top: clamp(2.5rem, 5vw, 3.5rem); padding: clamp(1.3rem, 3vw, 1.8rem); background: var(--surface); border: 1px solid var(--line); display: grid; gap: 1rem; }
  .post-end p { color: var(--muted); }
  .post-end p strong { color: var(--fg); }

  /* contact */
  .contact { background: var(--surface); }
  .contact-copy { display: grid; gap: 1.2rem; min-width: 0; }
  .contact h2 { font-size: var(--step-4); }
  .contact-copy p { color: var(--muted); font-size: var(--step-1); line-height: 1.5; max-width: 36rem; }
  .sessions { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-block: clamp(2rem, 4vw, 3rem) 1.4rem; }
  @media (min-width: 560px) { .sessions { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (min-width: 980px) { .sessions { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
  .session { background: var(--bg); padding: clamp(1.2rem, 2.4vw, 1.6rem); display: grid; gap: 0.6rem; align-content: start; min-width: 0; text-decoration: none; transition: background-color 0.15s ease; }
  .session:hover { background: var(--surface-2); }
  .session h3 { font-family: var(--display); font-stretch: 118%; font-weight: 800; font-size: var(--step-2); letter-spacing: -0.02em; line-height: 1.1; }
  .session p { color: var(--muted); font-size: 0.98rem; line-height: 1.45; }
  .session-cta { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--hot); padding-top: 0.3rem; }
  .contact-row { display: flex; flex-wrap: wrap; align-items: stretch; gap: 0.9rem; margin-bottom: 1.1rem; }
  .contact-row .email-row { flex: 1 1 20rem; min-width: 0; }
  .email-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem; padding: 1rem 1.1rem; background: var(--bg); border: 1px solid var(--line); }
  .email-row code { font-family: var(--mono); font-size: 1rem; user-select: all; overflow-wrap: anywhere; min-width: 0; flex: 1 1 14rem; }
  .copy-btn { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; padding: 0.5rem 0.8rem; background: transparent; color: var(--fg); border: 1px solid var(--line); cursor: pointer; }
  .copy-btn:hover { border-color: var(--hot); }
  .contact-note { font-size: 0.95rem; color: var(--muted); }

  footer { border-top: 1px solid var(--line); padding-block: 1.6rem; }
  .foot-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 2rem; font-size: 0.92rem; color: var(--muted); }
  .foot-row a { text-underline-offset: 3px; }