:root {
  --ground: #F2F4F7;
  --sheet: #FFFFFF;
  --ink: #111820;
  --muted: #4F5B66;
  --rule: #CDD5DD;
  --rule-soft: #E3E8ED;
  --accent: #1F3F8F;
  --accent-ink: #FFFFFF;
  --agree: #1B7A4B;
  --differ: #B42318;
  --ruling: #D6E2F0;
  --margin-line: #E0A9A3;
  --band: #E8ECF1;
  --shadow: 0 1px 0 rgba(17, 24, 32, .05), 0 20px 40px -28px rgba(17, 24, 32, .35);
  --serif: 'Literata', Georgia, 'Times New Roman', serif;
  --sans: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0E1216; --sheet: #161C23; --ink: #E7EBEF; --muted: #A3AEB9;
    --rule: #2E3842; --rule-soft: #222B34; --accent: #9DBCFF; --accent-ink: #0E1216;
    --agree: #5FC791; --differ: #F2907F; --ruling: #24313F; --margin-line: #6A3B37;
    --band: #141A20; --shadow: 0 20px 40px -28px rgba(0, 0, 0, .8);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground: #0E1216; --sheet: #161C23; --ink: #E7EBEF; --muted: #A3AEB9;
  --rule: #2E3842; --rule-soft: #222B34; --accent: #9DBCFF; --accent-ink: #0E1216;
  --agree: #5FC791; --differ: #F2907F; --ruling: #24313F; --margin-line: #6A3B37;
  --band: #141A20; --shadow: 0 20px 40px -28px rgba(0, 0, 0, .8);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 17px/1.55 var(--serif);
  font-variation-settings: 'opsz' 14;
  font-synthesis: none;
  overflow-wrap: break-word;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
a { color: var(--accent); text-underline-offset: .15em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.skip { position: absolute; left: 16px; top: -60px; padding: 8px 12px; background: var(--ink); color: var(--ground); font: 500 14px/1 var(--sans); z-index: 20; }
.skip:focus { top: 12px; }

.wrap { max-width: 1120px; margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px); }

/* Header */
.top { background: var(--ground); border-bottom: 1px solid var(--rule); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; padding-block: 12px; flex-wrap: wrap; }
.mark { display: inline-flex; align-items: baseline; gap: 12px; text-decoration: none; color: var(--ink); }
.mark b { font: 600 20px/1 var(--serif); letter-spacing: -.01em; }
.mark span { font: 500 11px/1 var(--sans); color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.nav { display: flex; align-items: center; gap: 4px 22px; font: 500 14px/1 var(--sans); }
.nav a { color: var(--muted); text-decoration: none; padding-block: 6px; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--accent); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 16px; border: 1px solid var(--accent); border-radius: 2px;
  background: var(--accent); color: var(--accent-ink); white-space: nowrap;
  font: 600 14px/1 var(--sans); text-decoration: none; cursor: pointer;
  transition: background .15s, color .15s;
}
.btn:hover { background: transparent; color: var(--accent); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn.ghost:hover { border-color: var(--ink); }
.nav .btn { padding: 9px 14px; color: var(--accent-ink); }
.nav .btn:hover { color: var(--accent); }
@media (max-width: 720px) {
  .mark span { display: none; }
  .top .wrap { padding-block: 10px 0; }
  .nav { width: 100%; order: 3; gap: 0 18px; overflow-x: auto; padding-block: 8px 0; margin-inline: -16px; padding-inline: 16px; scrollbar-width: none; }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { padding-block: 10px 12px; flex: none; }
  .nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--accent); }
  .nav .btn { display: none; }
}

/* Type */
.label { font: 500 12px/1.3 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; text-wrap: balance; margin: 0; letter-spacing: -.012em; }
h1 { font-size: clamp(34px, 4.6vw, 56px); line-height: 1.06; font-variation-settings: 'opsz' 72; }
h2 { font-size: clamp(27px, 3.2vw, 38px); line-height: 1.12; font-variation-settings: 'opsz' 48; }
h3 { font-size: 20px; line-height: 1.3; font-weight: 600; font-variation-settings: 'opsz' 24; }
p { margin: 0; max-width: 66ch; text-wrap: pretty; }
.lede { font-size: clamp(18px, 1.5vw, 20px); color: var(--muted); }
strong { font-weight: 600; }
.num { font-variant-numeric: tabular-nums; }

/* Hero */
.hero { padding-block: clamp(40px, 6vw, 80px) clamp(48px, 6vw, 88px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.hero-copy { display: grid; gap: 22px; align-content: start; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.for { display: flex; flex-wrap: wrap; gap: 6px 16px; padding-top: 16px; border-top: 1px solid var(--rule); font: 400 14px/1.5 var(--sans); color: var(--muted); }
.for strong { color: var(--ink); font-weight: 600; }
.hero.solo .wrap { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: minmax(0, 1fr); } }

/* Document: the one place the ledger look lives */
.doc {
  margin: 0; background: var(--sheet); border: 1px solid var(--rule); box-shadow: var(--shadow);
  position: relative; padding: 18px 20px 16px calc(20px + 18px); min-width: 0;
}
.doc::before { content: ''; position: absolute; top: 0; bottom: 0; left: 24px; width: 1px; background: var(--margin-line); }
.doc-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px 16px; flex-wrap: wrap; padding-bottom: 10px; border-bottom: 3px double var(--ink); }
.doc-head > div { flex: 1 1 260px; min-width: 0; }
.doc-head .label { color: var(--ink); }
.doc-title { font: 600 16px/1.3 var(--serif); font-variation-settings: 'opsz' 20; }
.tag { font: 600 11px/1 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--differ); border: 1px solid currentColor; padding: 4px 6px; flex: none; }
.doc-foot { display: flex; flex-wrap: wrap; gap: 4px 18px; padding-top: 10px; border-top: 1px solid var(--rule); font: 400 12px/1.5 var(--sans); color: var(--muted); }
.doc-foot code { font: 400 12px/1 var(--mono); }

/* Finding chain (hero) */
.chain { list-style: none; margin: 0; padding: 0; position: relative; }
.chain li { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 4px 14px; padding: 12px 0 12px 20px; position: relative; border-bottom: 1px solid var(--ruling); }
.chain li:last-child { border-bottom: 0; }
.chain li::before { content: ''; position: absolute; left: 5px; top: 0; bottom: 0; width: 1px; background: var(--rule); }
.chain li:first-child::before { top: 20px; }
.chain li:last-child::before { bottom: calc(100% - 20px); }
.chain li::after { content: ''; position: absolute; left: 1px; top: 16px; width: 9px; height: 9px; border-radius: 50%; border: 1.5px solid var(--accent); background: var(--accent); transition: background .3s; }
.chain .who { font: 500 12px/1.6 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.chain .what { font-size: 15px; line-height: 1.5; }
.chain .what b { font-weight: 600; font-variant-numeric: tabular-nums; }
.chain li.diff::after { border-color: var(--differ); background: var(--differ); }
.chain li.diff .what b { color: var(--differ); }
.chain li.sign::after { border-radius: 0; background: var(--ink); border-color: var(--ink); }
.chain li.sign .who { color: var(--ink); }
.chain .signature { display: block; margin-top: 6px; padding-top: 4px; border-top: 1px solid var(--ink); max-width: 220px; font: 400 12px/1.5 var(--sans); color: var(--muted); }
/* Page-load trace: markers fill in sequence; at rest everything is already filled */
.chain.pre li::after { background: var(--sheet); }
.chain.go li::after { transition: background .35s; }
.chain.go li:nth-child(2)::after { transition-delay: .5s; }
.chain.go li:nth-child(3)::after { transition-delay: 1s; }
.chain.go li:nth-child(4)::after { transition-delay: 1.5s; }
.chain.go li:nth-child(5)::after { transition-delay: 2.1s; }
@media (max-width: 480px) { .chain li { grid-template-columns: minmax(0, 1fr); gap: 2px; } }

/* Sections */
.block { padding-block: clamp(56px, 7vw, 96px); border-top: 1px solid var(--rule); }
.block.tight { padding-block: clamp(40px, 5vw, 64px); }
.sec { display: grid; gap: clamp(28px, 4vw, 44px); }
.sec-head { display: grid; gap: 14px; max-width: 760px; }
.sec-head .label { color: var(--accent); }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
@media (max-width: 800px) { .two { grid-template-columns: minmax(0, 1fr); } }

/* Figures with a source */
.figs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 28px; border-top: 2px solid var(--ink); }
.fig { display: grid; gap: 8px; align-content: start; padding-block: 20px 8px; }
.fig .big { font: 500 clamp(32px, 3.4vw, 42px)/1 var(--serif); font-variation-settings: 'opsz' 72; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.fig .big.differ { color: var(--differ); }
.fig p { font-size: 15px; color: var(--muted); }
.src { font: 400 12px/1.5 var(--sans); color: var(--muted); }
@media (max-width: 720px) {
  .figs { grid-template-columns: minmax(0, 1fr); }
  .fig { border-bottom: 1px solid var(--rule); padding-block: 18px; }
  .fig:last-child { border-bottom: 0; }
}

/* Agents strip */
.agents { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 2px solid var(--ink); counter-reset: agent; }
.agents li { display: grid; gap: 8px; align-content: start; padding: 20px 20px 8px 0; position: relative; }
.agents li + li { padding-left: 20px; border-left: 1px solid var(--rule); }
.agents .who { font: 500 12px/1.4 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.agents h3 { font-size: 19px; }
.agents p { font-size: 14.5px; color: var(--muted); }
.agents li.human { background: var(--band); margin-top: -2px; border-top: 2px solid var(--ink); padding-inline: 20px; padding-bottom: 18px; }
.agents li.human .who { color: var(--ink); }
@media (max-width: 960px) {
  .agents { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .agents li, .agents li + li { padding: 18px 18px 14px 0; border-left: 0; border-bottom: 1px solid var(--rule); }
  .agents li:nth-child(even):not(.human) { padding-left: 18px; border-left: 1px solid var(--rule); }
  .agents li.human { grid-column: 1 / -1; border-bottom: 0; }
}
@media (max-width: 520px) {
  .agents { grid-template-columns: minmax(0, 1fr); }
  .agents li:nth-child(even):not(.human) { padding-left: 0; border-left: 0; }
}

/* Does / does not */
.rules { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.rules > div { display: grid; gap: 12px; align-content: start; padding-top: 16px; border-top: 1px solid var(--ink); }
.rules ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: 15.5px; }
.rules li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 8px; }
.rules li::before { font: 600 15px/1.5 var(--sans); }
.rules .does li::before { content: '\2713'; color: var(--agree); }
.rules .never li::before { content: '\00D7'; color: var(--differ); }
.rules li span { color: var(--muted); }
.rules li b { color: var(--ink); font-weight: 600; }
@media (max-width: 720px) { .rules { grid-template-columns: minmax(0, 1fr); gap: 24px; } }

/* Two reports */
.reports { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.report { display: grid; gap: 12px; align-content: start; }
.report ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 15px; }
.report li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 8px; }
.report li::before { font: 600 14px/1.55 var(--sans); }
.report li.y::before { content: '\2713'; color: var(--agree); }
.report li.x::before { content: '\00D7'; color: var(--differ); }
@media (max-width: 720px) { .reports { grid-template-columns: minmax(0, 1fr); } }

/* Note */
.note { padding: 14px 18px; background: var(--band); border-left: 3px solid var(--ink); font-size: 15px; max-width: 760px; }

/* Sectors */
.sectors { display: grid; border-top: 2px solid var(--ink); }
.sector { display: grid; grid-template-columns: 200px minmax(0, 1.2fr) minmax(0, 1fr); gap: 8px 28px; padding-block: 18px; border-bottom: 1px solid var(--rule); font-size: 15px; }
.sector h3 { font-size: 18px; }
.sector .anchors { color: var(--muted); }
.sector .obs { font-family: var(--sans); font-size: 14px; line-height: 1.6; }
.sector .k { display: block; font: 500 11px/1.6 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 800px) { .sector { grid-template-columns: minmax(0, 1fr); gap: 6px; } .sector .k { margin-top: 6px; } }

/* Stages with an exit */
.stages { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.stages li { display: grid; gap: 8px; align-content: start; padding: 18px 20px 18px 0; }
.stages li + li { padding-left: 20px; border-left: 1px solid var(--rule); }
.stages .n { font: 500 12px/1.4 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.stages h3 { font-size: 19px; }
.stages p { font-size: 14.5px; color: var(--muted); }
.stages .exit { font: 400 13px/1.5 var(--sans); color: var(--ink); padding-top: 8px; border-top: 1px dashed var(--rule); }
.stages .exit b { font-weight: 600; }
@media (max-width: 900px) {
  .stages { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stages li, .stages li + li { padding: 18px 18px 18px 0; border-left: 0; border-bottom: 1px solid var(--rule); }
  .stages li:nth-child(even) { padding-left: 18px; border-left: 1px solid var(--rule); }
}
@media (max-width: 520px) {
  .stages { grid-template-columns: minmax(0, 1fr); }
  .stages li:nth-child(even) { padding-left: 0; border-left: 0; }
}

/* Definition grids (service lines, deliverables, commitments) */
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 28px; border-top: 2px solid var(--ink); }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; border-top: 2px solid var(--ink); }
.cell { display: grid; gap: 8px; align-content: start; padding-block: 18px; border-bottom: 1px solid var(--rule); }
.cell h3 { font-size: 18px; }
.cell p { font-size: 15px; color: var(--muted); }
.cell .k { font: 500 12px/1.4 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
@media (max-width: 900px) { .grid3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .grid3, .grid2 { grid-template-columns: minmax(0, 1fr); } }

/* Service lines */
.line { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(18px, 4vw, 56px); padding-block: 28px; border-bottom: 1px solid var(--rule); }
.lines { display: grid; border-top: 2px solid var(--ink); }
.line-head { display: grid; gap: 10px; align-content: start; }
.line-head h3 { font-size: clamp(22px, 2.2vw, 26px); font-weight: 500; }
.line-head p { color: var(--muted); font-size: 15.5px; }
.line-head .k { font: 500 12px/1.4 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.caps { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 24px; }
.caps dt { font-weight: 600; font-size: 16px; }
.caps dd { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
@media (max-width: 800px) { .line { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 520px) { .caps { grid-template-columns: minmax(0, 1fr); } }

/* Cycle board (services hero) */
.scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.board { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.board th { font: 500 11px/1.3 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); text-align: right; padding: 10px 6px 6px; vertical-align: bottom; }
.board th:first-child, .board td:first-child { text-align: left; padding-left: 0; }
.board td { padding: 10px 6px; border-bottom: 1px solid var(--ruling); font: 400 14.5px/1.3 var(--sans); text-align: right; white-space: nowrap; }
.board td:first-child { white-space: normal; }
.board td:last-child, .board th:last-child { padding-right: 0; }
.board tr:last-child td { border-bottom: 0; }
.board .differ { color: var(--differ); font-weight: 600; }
.board .nil { color: var(--muted); }
.pill { display: inline-block; padding: 3px 7px; border: 1px solid currentColor; font: 500 11px/1.2 var(--sans); letter-spacing: .05em; text-transform: uppercase; }
.pill.done { color: var(--agree); }
.pill.review { color: var(--differ); }
.pill.run { color: var(--muted); }
@media (max-width: 600px) { .board th:nth-child(3), .board td:nth-child(3) { display: none; } .board td, .board th { padding-inline: 4px; } }

/* Engagement shapes */
.shapes { display: grid; border-top: 2px solid var(--ink); }
.shape { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr) minmax(0, .9fr); gap: 12px 28px; padding-block: 24px; border-bottom: 1px solid var(--rule); }
.shape h3 { font-size: 20px; }
.shape .where { font: 400 12.5px/1.5 var(--sans); color: var(--muted); margin-top: 6px; }
.shape p { font-size: 15px; }
.facts { margin: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 14px; font-size: 14px; align-content: start; }
.facts dt { font: 500 11px/1.7 var(--sans); color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.facts dd { margin: 0; font-variant-numeric: tabular-nums; }
@media (max-width: 800px) { .shape { grid-template-columns: minmax(0, 1fr); gap: 12px; } }

/* Method steps (standards page) */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.steps li { display: grid; gap: 8px; align-content: start; padding: 18px 20px 18px 0; }
.steps li + li { padding-left: 20px; border-left: 1px solid var(--rule); }
.steps .n { font: 500 12px/1.4 var(--sans); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.steps p { font-size: 15px; color: var(--muted); }
@media (max-width: 720px) {
  .steps { grid-template-columns: minmax(0, 1fr); }
  .steps li, .steps li + li { padding: 16px 0; border-left: 0; border-bottom: 1px solid var(--rule); }
  .steps li:last-child { border-bottom: 0; }
}

/* Commitments */
.terms { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; border-top: 2px solid var(--ink); }
.terms li { display: grid; gap: 4px; padding-block: 18px; border-bottom: 1px solid var(--rule); }
.terms b { font-weight: 600; font-size: 17px; }
.terms span { color: var(--muted); font-size: 15px; }
@media (max-width: 720px) { .terms { grid-template-columns: minmax(0, 1fr); } }

/* Call to action band */
.cta { background: var(--ink); color: var(--ground); }
.cta .wrap { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 24px 48px; align-items: end; padding-block: clamp(40px, 5vw, 64px); }
.cta h2 { color: var(--ground); }
.cta p { color: color-mix(in srgb, var(--ground) 72%, var(--ink)); }
.cta .btn { background: var(--ground); color: var(--ink); border-color: var(--ground); }
.cta .btn:hover { background: transparent; color: var(--ground); }
.cta .offices { display: grid; gap: 10px; font: 400 14px/1.5 var(--sans); color: color-mix(in srgb, var(--ground) 72%, var(--ink)); }
.cta .offices b { display: block; color: var(--ground); font: 600 15px/1.4 var(--serif); }
.cta a:not(.btn) { color: var(--ground); }
@media (max-width: 720px) { .cta .wrap { grid-template-columns: minmax(0, 1fr); } }

/* Contact page */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.aside { display: grid; gap: 22px; }
.aside .offices { display: grid; gap: 14px; font: 400 14px/1.5 var(--sans); color: var(--muted); }
.aside .offices b { display: block; color: var(--ink); font: 600 17px/1.4 var(--serif); }
.aside .plain { display: grid; gap: 8px; font-size: 15px; color: var(--muted); }
form.brief { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 20px; background: var(--sheet); border: 1px solid var(--rule); padding: clamp(18px, 3vw, 28px); }
.field { display: grid; gap: 6px; min-width: 0; }
.field.full { grid-column: 1 / -1; }
label { font: 500 13px/1.3 var(--sans); color: var(--ink); }
label small { font-weight: 400; color: var(--muted); }
input, select, textarea {
  width: 100%; font: 400 16px/1.4 var(--sans); color: var(--ink);
  background: var(--ground); border: 1px solid var(--rule); border-radius: 2px; padding: 10px 12px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.field.invalid input, .field.invalid select { border-color: var(--differ); }
.hint { font: 400 12.5px/1.4 var(--sans); color: var(--muted); }
.err { font: 400 13px/1.4 var(--sans); color: var(--differ); }
.err:empty { display: none; }
textarea { resize: vertical; min-height: 120px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { grid-column: 1 / -1; display: grid; gap: 12px; padding-top: 6px; }
.form-foot .row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.btn[disabled] { opacity: .55; cursor: progress; }
.status { font: 400 15px/1.5 var(--sans); }
.status.bad { color: var(--differ); }
.status.good { color: var(--agree); }
.fine { font: 400 13px/1.5 var(--sans); color: var(--muted); max-width: 70ch; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 560px) { form.brief { grid-template-columns: minmax(0, 1fr); } }

/* Footer */
footer { padding-block: 28px calc(28px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--rule); font: 400 13.5px/1.6 var(--sans); color: var(--muted); }
footer .wrap { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px 40px; align-items: start; }
footer nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
footer a { color: var(--muted); }
footer a:hover { color: var(--ink); }
footer .small { display: grid; gap: 4px; }
@media (max-width: 640px) { footer .wrap { grid-template-columns: minmax(0, 1fr); } }