:root {
    --paper: #EDEDEB; --panel: #E4E4E1; --ink: #17181B; --ink-soft: #34363B; --muted: #74757A;
    --line: rgba(23,24,27,0.14); --line-strong: rgba(23,24,27,0.30); --mask: rgba(237,237,235,0.72);
    --grain: 0.05; --dot: 23, 24, 27;
    --mono: ui-monospace, "Cascadia Code", "SF Mono", "Consolas", "Menlo", monospace;
    --grot: "Helvetica Neue", "Helvetica", "Arial", system-ui, sans-serif;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --wrap-pad: clamp(20px, 5.5vw, 96px);
  }
  @media (prefers-color-scheme: dark) {
    :root { --paper: #0C0D0F; --panel: #141519; --ink: #ECEDEA; --ink-soft: #C7C8C4; --muted: #83858B;
      --line: rgba(236,237,234,0.14); --line-strong: rgba(236,237,234,0.28); --mask: rgba(12,13,15,0.72); --grain: 0.075; --dot: 236, 237, 234; }
  }
  :root[data-theme="light"] { --paper: #EDEDEB; --panel: #E4E4E1; --ink: #17181B; --ink-soft: #34363B; --muted: #74757A;
    --line: rgba(23,24,27,0.14); --line-strong: rgba(23,24,27,0.30); --mask: rgba(237,237,235,0.72); --grain: 0.05; --dot: 23, 24, 27; }
  :root[data-theme="dark"] { --paper: #0C0D0F; --panel: #141519; --ink: #ECEDEA; --ink-soft: #C7C8C4; --muted: #83858B;
    --line: rgba(236,237,234,0.14); --line-strong: rgba(236,237,234,0.28); --mask: rgba(12,13,15,0.72); --grain: 0.075; --dot: 236, 237, 234; }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--grot); line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
  body::after { content: ""; position: fixed; inset: 0; z-index: 40; pointer-events: none; opacity: var(--grain);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

  .wrap { max-width: 1440px; margin-inline: auto; padding-inline: var(--wrap-pad); }
  .mono { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; }
  a { color: inherit; text-decoration: none; }
  ::selection { background: var(--ink); color: var(--paper); }
  :focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
  .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
  .skip { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--ink); color: var(--paper); padding: 10px 16px; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; }
  .skip:focus { left: 12px; top: 12px; }

  .progress { position: fixed; top: 0; left: 0; height: 2px; width: 0%; background: var(--ink); z-index: 60; }

  header { position: fixed; inset: 0 0 auto 0; z-index: 50; transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease; border-bottom: 1px solid transparent; }
  header.scrolled { background: var(--mask); backdrop-filter: saturate(1.2) blur(12px); -webkit-backdrop-filter: saturate(1.2) blur(12px); border-bottom: 1px solid var(--line); }
  .nav { max-width: 1440px; margin-inline: auto; padding: 18px var(--wrap-pad); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
  .brand { font-weight: 700; letter-spacing: -0.04em; font-size: 1.05rem; }
  .nav-links { display: flex; align-items: center; gap: clamp(14px, 2.4vw, 34px); }
  .nav-link { position: relative; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); transition: color 0.3s ease; padding-block: 4px; }
  .nav-link::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--ease); }
  .nav-link:hover { color: var(--ink); }
  .nav-link:hover::after { transform: scaleX(1); }
  .nav-link.hide-sm { display: inline-flex; }
  .toggle { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); background: none; border: 1px solid var(--line-strong); border-radius: 999px; padding: 6px 12px; cursor: pointer; transition: color 0.3s ease, border-color 0.3s ease; }
  .toggle:hover { color: var(--ink); border-color: var(--ink); }

  /* Filter-pipeline hero */
  .hero { position: relative; min-height: 100svh; overflow: hidden; }
  #field { position: absolute; inset: 0; z-index: 0; display: block; width: 100%; height: 100%; }
  .hero-ui { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
  .hero-ui-inner { position: relative; height: 100%; max-width: 1440px; margin-inline: auto; }
  .hero-kicker { position: absolute; top: clamp(98px, 13vh, 140px); left: var(--wrap-pad); color: var(--muted); }
  .hero-lede { position: absolute; left: var(--wrap-pad); bottom: clamp(64px, 10vh, 112px); max-width: 32ch; display: flex; flex-direction: column; gap: 18px; }
  .lede-h { margin: 0; font-weight: 400; font-size: clamp(1.9rem, 4vw, 3.3rem); line-height: 1.04; letter-spacing: -0.028em; color: var(--ink); text-wrap: balance; }
  .lede-h .chaos { color: var(--ink-soft); }
  .lede-h .order { font-weight: 700; color: var(--ink); }
  .lede-s { margin: 0; font-size: 1rem; line-height: 1.5; color: var(--muted); max-width: 42ch; }
  .hero-link { pointer-events: auto; width: max-content; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink); display: inline-flex; align-items: center; gap: 9px; border-bottom: 1px solid var(--line-strong); padding-bottom: 7px; transition: border-color 0.3s ease; margin-top: 4px; }
  .hero-link:hover { border-color: var(--ink); }
  .hero-link span { transition: transform 0.35s var(--ease); }
  .hero-link:hover span { transform: translateX(5px); }
  .hero-cue { position: absolute; right: var(--wrap-pad); bottom: clamp(64px, 10vh, 112px); color: var(--muted); display: flex; align-items: center; gap: 12px; writing-mode: vertical-rl; }
  .hero-cue .rule { width: 1px; height: 46px; background: linear-gradient(var(--muted), transparent); }

  html.js .hero-ui [data-h] { opacity: 0; transform: translateY(24px); animation: heroRise 1.1s var(--ease) forwards; animation-delay: calc(0.5s + var(--hi, 0) * 0.14s); }
  @keyframes heroRise { to { opacity: 1; transform: none; } }

  /* Editorial body */
  section.block { padding-block: clamp(80px, 13vh, 176px); border-top: 1px solid var(--line); scroll-margin-top: 88px; position: relative; z-index: 1; }
  .grid { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); }
  .rail { color: var(--muted); }
  .rail .idx { display: block; margin-top: 10px; color: var(--ink); }
  .statement { font-weight: 400; font-size: clamp(1.6rem, 3.5vw, 3rem); line-height: 1.12; letter-spacing: -0.016em; text-wrap: balance; margin: 0 0 clamp(28px, 4vw, 48px); max-width: 24ch; color: var(--ink); }
  .prose { max-width: 60ch; font-size: 1.0625rem; line-height: 1.65; color: var(--ink-soft); display: flex; flex-direction: column; gap: 1.1em; }
  .caps { display: flex; flex-direction: column; }
  .cap { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; align-items: baseline; padding: clamp(22px, 2.6vw, 32px) 0; border-top: 1px solid var(--line); }
  .cap:last-child { border-bottom: 1px solid var(--line); }
  .cap h3 { margin: 0; font-weight: 400; font-size: clamp(1.3rem, 2.6vw, 2rem); letter-spacing: -0.02em; color: var(--ink); }
  .cap p { margin: 8px 0 0; color: var(--muted); max-width: 46ch; font-size: 1rem; }
  .cap .tag { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
  .prods { display: flex; flex-direction: column; }
  .prod { display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; align-items: baseline; gap: 18px; padding: clamp(24px, 3vw, 38px) 8px; border-top: 1px solid var(--line); transition: padding-left 0.45s var(--ease), background 0.45s var(--ease); }
  .prod:last-child { border-bottom: 1px solid var(--line); }
  .prod .p-idx { color: var(--muted); }
  .prod .p-name { font-weight: 400; font-size: clamp(1.4rem, 3vw, 2.4rem); letter-spacing: -0.02em; line-height: 1.1; color: var(--ink); }
  .prod .p-desc { color: var(--muted); max-width: 46ch; margin-top: 8px; font-size: 1rem; }
  .prod .p-meta { display: flex; align-items: center; gap: 14px; color: var(--muted); white-space: nowrap; }
  .prod .p-arrow { display: inline-block; transform: translateX(-6px); opacity: 0; transition: transform 0.45s var(--ease), opacity 0.45s var(--ease); }
  a.prod:hover { padding-left: 20px; background: var(--panel); }
  a.prod:hover .p-arrow { transform: translateX(0); opacity: 1; }
  a.prod:hover .p-name { color: var(--ink); }
  .prod.soon { cursor: default; }
  .prod.soon .p-name, .prod.soon .p-idx { color: var(--muted); }
  .principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
  .principle { background: var(--paper); padding: clamp(26px, 3vw, 40px); display: flex; flex-direction: column; gap: 12px; }
  .principle h3 { margin: 0; font-weight: 700; font-size: 1.2rem; letter-spacing: -0.02em; }
  .principle p { margin: 0; color: var(--muted); max-width: 36ch; }
  .contact { border-top: 1px solid var(--line); }
  .contact .big { font-weight: 400; font-size: clamp(2rem, 6vw, 5rem); line-height: 1.02; letter-spacing: -0.03em; margin: 0 0 28px; text-wrap: balance; }
  .mailto { display: inline-block; font-family: var(--mono); font-size: clamp(0.9rem, 2.2vw, 1.15rem); letter-spacing: 0.02em; color: var(--ink); padding-bottom: 6px; border-bottom: 1px solid var(--line-strong); transition: border-color 0.3s ease; will-change: transform; }
  .mailto:hover { border-color: var(--ink); }
  .contact .sub { color: var(--muted); margin-top: 22px; max-width: 42ch; }
  footer { border-top: 1px solid var(--line); padding-block: clamp(52px, 7vh, 84px); position: relative; z-index: 1; }
  .foot-inner { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 2fr); gap: clamp(36px, 6vw, 88px); align-items: start; }
  .foot-brand { display: inline-block; font-weight: 700; letter-spacing: -0.04em; font-size: clamp(1.8rem, 4vw, 2.35rem); line-height: 1; color: var(--ink); }
  .foot-tag { color: var(--muted); margin-top: 12px; font-size: 0.78rem; letter-spacing: 0.02em; }
  .foot-start { display: inline-flex; align-items: center; gap: 8px; margin-top: 24px; color: var(--ink); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; border-bottom: 1px solid var(--line-strong); padding-bottom: 6px; transition: border-color 0.3s ease; }
  .foot-start:hover { border-color: var(--ink); }
  .foot-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(22px, 4vw, 44px); }
  .foot-col { display: flex; flex-direction: column; align-items: flex-start; gap: 13px; }
  .foot-h { color: var(--muted); font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 3px; }
  .foot-col a { color: var(--ink-soft); font-size: 0.92rem; line-height: 1.1; transition: color 0.25s ease; }
  .foot-col a:hover { color: var(--ink); }
  .foot-base { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 14px 28px; margin-top: clamp(44px, 6vh, 68px); padding-top: 26px; border-top: 1px solid var(--line); }
  .foot-legal { color: var(--muted); max-width: 74ch; font-size: 0.72rem; line-height: 1.55; }
  .foot-top { color: var(--muted); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; white-space: nowrap; transition: color 0.25s ease; }
  .foot-top:hover { color: var(--ink); }
  @media (max-width: 760px) { .foot-inner { grid-template-columns: 1fr; gap: 40px; } }
  @media (max-width: 520px) { .foot-cols { grid-template-columns: 1fr 1fr; gap: 26px 20px; } }

  html.js [data-reveal] { opacity: 0; will-change: transform, opacity; }

  @media (max-width: 900px) {
    .grid { grid-template-columns: 1fr; gap: 24px; }
    .rail { display: flex; justify-content: space-between; }
    .rail .idx { margin-top: 0; }
    .principles { grid-template-columns: 1fr; }
    .nav-link.hide-sm { display: none; }
    .prod { grid-template-columns: 32px minmax(0, 1fr); }
    .prod .p-meta { grid-column: 2; margin-top: 12px; }
    .hero-cue { display: none; }
    .hero-lede { max-width: 88%; }
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    html.js .hero-ui [data-h] { opacity: 1; transform: none; animation: none; }
    html.js [data-reveal] { opacity: 1; transform: none; transition: none; }
  }

  /* ---- Homepage: what we build grid ---- */
  .build-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
  .build-card { background: var(--paper); padding: clamp(24px, 3vw, 36px); display: flex; flex-direction: column; gap: 10px; transition: background 0.4s var(--ease); }
  .build-card:hover { background: var(--panel); }
  .build-card h3 { margin: 0; font-weight: 400; font-size: clamp(1.3rem, 2.6vw, 1.9rem); letter-spacing: -0.02em; color: var(--ink); }
  .build-card h3 a { color: inherit; }
  .build-card p { margin: 0; color: var(--muted); font-size: 1rem; max-width: 42ch; }
  .build-card .go { margin-top: 8px; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
  .build-card:hover .go { color: var(--ink); }

  /* ---- Content / service pages ---- */
  .page-hero { padding: clamp(140px, 20vh, 220px) 0 clamp(40px, 7vh, 80px); border-bottom: 1px solid var(--line); }
  .crumb { color: var(--muted); margin-bottom: 22px; display: flex; flex-wrap: wrap; gap: 8px; }
  .crumb a { color: var(--muted); } .crumb a:hover { color: var(--ink); }
  .page-h1 { font-weight: 400; font-size: clamp(2.2rem, 6vw, 4.4rem); line-height: 1.02; letter-spacing: -0.03em; margin: 0; max-width: 20ch; text-wrap: balance; color: var(--ink); }
  .page-lede { margin: clamp(22px, 3vh, 32px) 0 0; font-size: clamp(1.1rem, 2vw, 1.45rem); line-height: 1.4; color: var(--ink-soft); max-width: 54ch; }
  .page-cta { margin-top: clamp(26px, 4vh, 40px); }
  .svc { padding-block: clamp(56px, 9vh, 100px); border-top: 1px solid var(--line); }
  .svc h2 { font-weight: 400; font-size: clamp(1.6rem, 3.4vw, 2.6rem); letter-spacing: -0.02em; line-height: 1.12; margin: 0 0 clamp(20px, 3vw, 32px); max-width: 24ch; color: var(--ink); }
  .svc .prose { max-width: 62ch; }
  .svc-list { list-style: none; padding: 0; margin: 0; }
  .svc-list li { padding: 16px 0; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 1.05rem; }
  .svc-list li:first-child { border-top: none; }
  .steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
  .step { background: var(--paper); padding: clamp(22px, 2.6vw, 32px); display: flex; flex-direction: column; gap: 10px; }
  .step .n { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; color: var(--muted); }
  .step h3 { margin: 0; font-weight: 400; font-size: 1.2rem; letter-spacing: -0.01em; color: var(--ink); }
  .step p { margin: 0; color: var(--muted); font-size: 0.95rem; }
  .faq details { border-bottom: 1px solid var(--line); }
  .faq details:first-of-type { border-top: 1px solid var(--line); }
  .faq summary { list-style: none; cursor: pointer; padding: 22px 0; font-size: 1.15rem; color: var(--ink); display: flex; justify-content: space-between; gap: 20px; }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after { content: "+"; color: var(--muted); font-family: var(--mono); }
  .faq details[open] summary::after { content: "\2212"; }
  .faq details p { margin: 0 0 22px; color: var(--muted); max-width: 60ch; line-height: 1.6; }
  .rel { display: flex; flex-wrap: wrap; gap: 12px 26px; }
  .rel a { color: var(--ink); border-bottom: 1px solid var(--line-strong); padding-bottom: 4px; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; transition: border-color 0.3s ease; }
  .rel a:hover { border-color: var(--ink); }
  .btn { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.12em; text-transform: uppercase; padding: 14px 24px; border-radius: 999px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); transition: background 0.35s ease, color 0.35s ease; will-change: transform; }
  .btn:hover { background: transparent; color: var(--ink); }

  @media (max-width: 800px) { .steps { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 700px) { .build-grid { grid-template-columns: 1fr; } }

  /* ---- Contact form ---- */
  .cform-section { padding-block: clamp(48px, 8vh, 96px); border-top: 1px solid var(--line); }
  .cform-wrap { max-width: 46rem; }
  .cform { display: flex; flex-direction: column; gap: clamp(24px, 3.4vw, 34px); }
  .cform[hidden] { display: none; }
  .cfield { display: flex; flex-direction: column; gap: 11px; border: 0; padding: 0; margin: 0; min-width: 0; }
  .cfield > label, .cchips legend { color: var(--muted); padding: 0; }
  .cchips { display: block; }
  .cchips legend { display: block; width: 100%; margin-bottom: 14px; }
  .cfield-opt { margin-left: 8px; font-size: 0.62rem; letter-spacing: 0.1em; color: var(--muted); opacity: 0.72; }

  .cinput { width: 100%; font-family: var(--grot); font-size: 1.05rem; line-height: 1.5; color: var(--ink);
    background: transparent; border: 1px solid var(--line); border-radius: 0; padding: 14px 16px; min-height: 52px;
    -webkit-appearance: none; appearance: none; transition: border-color 0.3s ease, box-shadow 0.3s ease; }
  .cinput::placeholder { color: var(--muted); opacity: 1; }
  .cinput:hover { border-color: var(--line-strong); }
  .cinput:focus { outline: none; }
  .cinput:focus-visible { outline: none; border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
  .cinput[aria-invalid="true"] { border-color: var(--ink); }
  .ctextarea { min-height: 152px; resize: vertical; }

  .chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
  .chip { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 18px;
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
    background: transparent; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; user-select: none;
    transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease; }
  .chip:hover { color: var(--ink); border-color: var(--line-strong); }
  .chip-input:checked + .chip { color: var(--paper); background: var(--ink); border-color: var(--ink); }
  .chip-input:focus-visible + .chip { outline: 2px solid var(--ink); outline-offset: 3px; }

  .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

  .cfield-err { margin: 0; color: var(--ink); font-size: 0.92rem; line-height: 1.4; }

  .cform-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; margin-top: 2px; }
  .btn:disabled { opacity: 0.55; cursor: default; }
  .btn:disabled:hover { background: var(--ink); color: var(--paper); }
  .cform-fallback { color: var(--muted); margin: 0; }
  .cform-fallback a { color: var(--ink); border-bottom: 1px solid var(--line-strong); padding-bottom: 2px; transition: border-color 0.3s ease; }
  .cform-fallback a:hover { border-color: var(--ink); }

  .cform-status { margin: 0; }
  .cform-status:empty { display: none; }
  .cform-status.is-error { margin-top: 22px; color: var(--ink-soft); font-size: 1rem; line-height: 1.6; max-width: 54ch; }
  .cform-status.is-error a { color: var(--ink); border-bottom: 1px solid var(--line-strong); }
  .cform-status.is-error a:hover { border-bottom-color: var(--ink); }

  .cform-done { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
  .cform-done-h { margin: 0; font-weight: 400; font-size: clamp(1.6rem, 3.4vw, 2.4rem); letter-spacing: -0.02em; line-height: 1.1; color: var(--ink); outline: none; }
  .cform-done-p { margin: 0; color: var(--ink-soft); font-size: 1.0625rem; line-height: 1.6; max-width: 46ch; }
  .cform-again { margin-top: 8px; background: none; border: 0; cursor: pointer; color: var(--muted);
    border-bottom: 1px solid var(--line-strong); padding: 0 0 6px; transition: color 0.3s ease, border-color 0.3s ease; }
  .cform-again:hover { color: var(--ink); border-color: var(--ink); }

  @media (prefers-reduced-motion: reduce) {
    .cinput, .chip, .cform-fallback a, .cform-again, .btn { transition: none; }
  }