/* ZCM website stylesheet.
   Layout concept: a document page. A text column carries the argument, a margin-note column carries the sources,
   and the sheet object is reserved for things that are documents in their own right (specimens, products). */
:root {
  --paper: #F4F6F4;
  --sheet: #FFFFFF;
  --ink: #15211F;
  --ink-soft: #46534F;
  --ink-faint: #5F6B67;
  --rule: #D6DDD9;
  --rule-strong: #B9C4BF;
  --jade: #17695C;
  --jade-strong: #0F5047;
  --jade-wash: #E2EEEA;
  --on-jade: #FFFFFF;
  --amber: #875700;
  --amber-wash: #F6EBD3;
  --red: #A3392A;
  --red-wash: #F7E2DD;
  --inverse-bg: #15211F;
  --inverse-fg: #E9EFEC;
  --inverse-soft: #AEBBB6;
  --inverse-rule: #2C3A37;
  --header-bg: rgba(244, 246, 244, 0.92);
  --shadow: 0 1px 2px rgba(21, 33, 31, 0.06), 0 14px 34px -14px rgba(21, 33, 31, 0.22);
  --focus: #17695C;

  --font-display: "Newsreader", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-text: "Instrument Sans", "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.25rem;
  --step-2: 1.625rem;
  --step-3: clamp(1.875rem, 1.45rem + 1.4vw, 2.5rem);
  --step-4: clamp(2.375rem, 1.6rem + 3.1vw, 3.875rem);

  --measure: 64ch;
  --wrap: 75rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0E1514;
    --sheet: #15201E;
    --ink: #E4EBE8;
    --ink-soft: #AEBBB6;
    --ink-faint: #93A09B;
    --rule: #26332F;
    --rule-strong: #3A4946;
    --jade: #63C2B1;
    --jade-strong: #8AD6C8;
    --jade-wash: #15302B;
    --on-jade: #0E1514;
    --amber: #E2B25A;
    --amber-wash: #2E2512;
    --red: #F08A76;
    --red-wash: #34201B;
    --inverse-bg: #1A2826;
    --inverse-fg: #E4EBE8;
    --inverse-soft: #AEBBB6;
    --inverse-rule: #2E3D3A;
    --header-bg: rgba(14, 21, 20, 0.92);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 14px 34px -14px rgba(0, 0, 0, 0.7);
    --focus: #63C2B1;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --paper: #0E1514;
  --sheet: #15201E;
  --ink: #E4EBE8;
  --ink-soft: #AEBBB6;
  --ink-faint: #93A09B;
  --rule: #26332F;
  --rule-strong: #3A4946;
  --jade: #63C2B1;
  --jade-strong: #8AD6C8;
  --jade-wash: #15302B;
  --on-jade: #0E1514;
  --amber: #E2B25A;
  --amber-wash: #2E2512;
  --red: #F08A76;
  --red-wash: #34201B;
  --inverse-bg: #1A2826;
  --inverse-fg: #E4EBE8;
  --inverse-soft: #AEBBB6;
  --inverse-rule: #2E3D3A;
  --header-bg: rgba(14, 21, 20, 0.92);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 14px 34px -14px rgba(0, 0, 0, 0.7);
  --focus: #63C2B1;
  color-scheme: dark;
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: var(--step-0);
  line-height: 1.6;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--jade); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--jade-strong); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
p { margin: 0; }
h1, h2, h3 { margin: 0; text-wrap: balance; }
h1, h2 { font-family: var(--font-display); font-weight: 500; letter-spacing: -0.012em; color: var(--ink); }
h1 { font-size: var(--step-4); line-height: 1.06; }
h2 { font-size: var(--step-3); line-height: 1.12; }
h3 { font-family: var(--font-text); font-size: var(--step-1); font-weight: 600; line-height: 1.3; }
strong { font-weight: 600; }
cite { font-style: normal; }
.nw { white-space: nowrap; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.skip {
  position: absolute; left: -999px; top: 0.75rem; z-index: 100;
  background: var(--sheet); color: var(--ink); padding: 0.6rem 1rem; border: 1px solid var(--rule-strong); border-radius: 6px;
}
.skip:focus { left: 1rem; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.lede { font-size: var(--step-1); line-height: 1.55; color: var(--ink-soft); max-width: 40em; }

/* Header */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 30;
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(1.2) blur(10px);
  backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--rule); }
.header-row { display: flex; align-items: center; gap: 1.5rem; min-height: 4.25rem; position: relative; }
.brand { display: inline-flex; color: var(--ink); line-height: 0; }
.brand .logo { height: 1.375rem; width: auto; display: block; }
.logo-terminal { fill: var(--jade); }
.nav { margin-left: auto; display: flex; align-items: center; gap: 1.5rem; }
.nav a { color: var(--ink-soft); text-decoration: none; font-size: 0.95rem; white-space: nowrap; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] {
  color: var(--ink); text-decoration: underline; text-decoration-color: var(--jade);
  text-decoration-thickness: 2px; text-underline-offset: 0.55em;
}
.nav .button { color: var(--on-jade); }
.menu-toggle {
  display: none; margin-left: auto; font: inherit; font-size: 0.95rem; font-weight: 600; color: var(--ink);
  background: transparent; border: 1px solid var(--rule-strong); border-radius: 6px; padding: 0.5rem 0.85rem; cursor: pointer;
}

/* Buttons and links */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  background: var(--jade); color: var(--on-jade); border: 1px solid var(--jade);
  padding: 0.72rem 1.15rem; border-radius: 6px; font: inherit; font-weight: 600; font-size: 0.95rem; line-height: 1.2;
  text-decoration: none; cursor: pointer;
}
.button:hover { background: var(--jade-strong); border-color: var(--jade-strong); color: var(--on-jade); }
.text-link { font-weight: 600; color: var(--ink); text-decoration: underline; text-decoration-color: var(--jade); text-decoration-thickness: 2px; }
.text-link:hover { color: var(--jade); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.85rem 1.5rem; margin-top: 2rem; }

/* Hero */
.hero { padding-block: clamp(2.75rem, 7vw, 5.5rem) clamp(3rem, 6vw, 5rem); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.hero h1 { max-width: 12.5em; }
.hero .lede { margin-top: 1.5rem; }
.hero-copy { min-width: 0; padding-top: clamp(0rem, 1.5vw, 1.25rem); }

/* Eyebrow label: the jade square repeats the terminal of the wordmark */
.eyebrow { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1rem; font-size: 0.95rem; font-weight: 600; color: var(--jade); }
.eyebrow::before { content: ""; width: 0.6rem; height: 0.6rem; background: var(--jade); flex: none; }

/* Sheets and the verification specimen */
.sheet { background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px; box-shadow: var(--shadow); }
.specimen { margin: 0; padding: 1.25rem 1.35rem 1rem; min-width: 0; }
.specimen-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding-bottom: 0.85rem; border-bottom: 1px solid var(--rule); }
.specimen-title { font-weight: 600; font-size: 0.92rem; }
.specimen-tag { color: var(--ink-faint); font-size: 0.8rem; }
.draft { font-family: var(--font-display); font-size: 1.0625rem; line-height: 1.72; padding-block: 1rem 1.1rem; color: var(--ink); }
.ref { border-bottom: 2px solid var(--rule-strong); padding-bottom: 1px; transition: background-color 0.35s ease, border-color 0.35s ease; }
.ref[data-status="verified"] { border-bottom-color: var(--jade); background: var(--jade-wash); }
.ref[data-status="review"] { border-bottom-color: var(--amber); background: var(--amber-wash); }
.ref[data-status="notfound"] { border-bottom-color: var(--red); background: var(--red-wash); }
.findings { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.finding { display: grid; grid-template-columns: 5.75rem minmax(0, 1fr); gap: 0.2rem 0.9rem; padding: 0.8rem 0; border-bottom: 1px solid var(--rule); }
.finding .status { grid-row: 1 / span 2; align-self: start; justify-self: start; font-size: 0.76rem; font-weight: 600; line-height: 1.3; padding: 0.22rem 0.5rem; border-radius: 4px; background: var(--paper); color: var(--ink-faint); transition: background-color 0.3s ease, color 0.3s ease; white-space: nowrap; }
.finding[data-status="verified"] .status { background: var(--jade-wash); color: var(--jade); }
.finding[data-status="review"] .status { background: var(--amber-wash); color: var(--amber); }
.finding[data-status="notfound"] .status { background: var(--red-wash); color: var(--red); }
.finding .refname { font-weight: 600; font-size: 0.875rem; line-height: 1.4; }
.finding p { grid-column: 2; color: var(--ink-soft); font-size: 0.86rem; line-height: 1.5; transition: opacity 0.3s ease; }
.finding.is-pending p { opacity: 0.35; }
.specimen-foot { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding-top: 0.85rem; font-size: 0.8rem; color: var(--ink-faint); }
.rerun { font: inherit; font-weight: 600; color: var(--jade); background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline; text-underline-offset: 0.18em; }
.register-entity { font-family: var(--font-display); font-size: 1.0625rem; line-height: 1.5; padding-block: 0.9rem 0.85rem; color: var(--ink); }
.register .finding { grid-template-columns: 4.75rem minmax(0, 1fr); }

/* Sections */
.section { padding-block: clamp(3.5rem, 8vw, 6rem); }
.section + .section { border-top: 1px solid var(--rule); }
.section-head { display: grid; gap: 1rem; max-width: 46rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-head p { color: var(--ink-soft); font-size: var(--step-1); line-height: 1.55; }
.section-foot { margin-top: 2rem; max-width: var(--measure); color: var(--ink-soft); }

/* Text with margin notes */
.annotated { display: grid; gap: clamp(2rem, 4vw, 2.75rem); }
.annotated-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 17.5rem); gap: 1rem 3.5rem; align-items: start; }
.annotated-row .body { max-width: var(--measure); display: grid; gap: 0.6rem; }
.annotated-row .body p { color: var(--ink-soft); }
.note { font-size: 0.84rem; line-height: 1.5; color: var(--ink-faint); border-left: 2px solid var(--jade); padding-left: 0.9rem; display: grid; gap: 0.45rem; }
.note p { color: var(--ink-faint); }

/* Grids of items */
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.25rem 3.5rem; }
.item { border-top: 1px solid var(--rule-strong); padding-top: 1.1rem; display: grid; gap: 0.5rem; align-content: start; }
.item p { color: var(--ink-soft); }
.intro { max-width: var(--measure); color: var(--ink-soft); font-size: var(--step-1); line-height: 1.55; margin-bottom: clamp(2rem, 4vw, 2.75rem); }

/* Service cards on the home page. The specialty card spans the grid and carries a list of examples. */
.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.service { border: 1px solid var(--rule-strong); border-radius: 10px; padding: clamp(1.4rem, 3vw, 2rem); display: grid; gap: 0.75rem; align-content: start; min-width: 0; }
.service h3 { font-family: var(--font-display); font-size: 1.625rem; font-weight: 500; line-height: 1.2; letter-spacing: -0.005em; }
.service p { color: var(--ink-soft); }
.service .text-link { justify-self: start; margin-top: 0.35rem; }
.service-featured { grid-column: 1 / -1; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.5rem 3.5rem; background: var(--jade-wash); border-color: transparent; }
.service-featured h3 { font-size: clamp(1.75rem, 1.4rem + 1vw, 2.25rem); line-height: 1.12; }
.service-main { display: grid; gap: 0.75rem; align-content: start; min-width: 0; }
.kicker { font-size: 0.85rem; font-weight: 600; color: var(--jade); }
.service-list { list-style: none; margin: 0; padding: 0; align-self: center; min-width: 0; }
.service-list li { display: flex; gap: 0.75rem; align-items: flex-start; padding-block: 0.7rem; border-top: 1px solid var(--rule-strong); color: var(--ink); }
.service-list li:last-child { border-bottom: 1px solid var(--rule-strong); }
.service-list li::before { content: ""; width: 0.45rem; height: 0.45rem; margin-top: 0.6em; background: var(--jade); flex: none; }

/* Products */
.products { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.product { padding: clamp(1.5rem, 3vw, 2.25rem); display: grid; gap: 0.9rem; align-content: start; }
.product-name { font-family: var(--font-display); font-size: 2.125rem; font-weight: 500; line-height: 1; letter-spacing: -0.01em; }
.product-kind { font-weight: 600; color: var(--jade); }
.product p { color: var(--ink-soft); }
.state { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; color: var(--ink-faint); }
.state::before { content: ""; width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--amber); }
.product .text-link { justify-self: start; }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.25rem 3.5rem; margin: 0; }
.principle { display: grid; gap: 0.5rem; align-content: start; }
.principle dt { font-family: var(--font-display); font-size: 1.375rem; font-weight: 500; line-height: 1.25; }
.principle dd { margin: 0; color: var(--ink-soft); }

/* Sequences */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1.5rem; }
.steps li { counter-increment: step; display: grid; gap: 0.55rem; align-content: start; border-top: 2px solid var(--ink); padding-top: 1rem; min-width: 0; }
.steps li::before { content: counter(step); font-family: var(--font-display); font-size: 2.25rem; line-height: 1; color: var(--jade); }
.steps p { color: var(--ink-soft); font-size: 0.97rem; }
.sequence { list-style: none; margin: 0; padding: 0; counter-reset: seq; display: grid; gap: 0; max-width: 52rem; }
.sequence li { counter-increment: seq; display: grid; grid-template-columns: 3rem minmax(0, 1fr); gap: 0.25rem 1rem; padding-block: 1.1rem; border-top: 1px solid var(--rule); }
.sequence li:last-child { border-bottom: 1px solid var(--rule); }
.sequence li::before { content: counter(seq); grid-row: 1 / span 2; font-family: var(--font-display); font-size: 1.75rem; line-height: 1.1; color: var(--jade); }
.sequence p { color: var(--ink-soft); }

/* Two-column split and prose */
.split { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 1.5rem 4rem; align-items: start; }
.prose { max-width: var(--measure); display: grid; gap: 1.1rem; }
.prose p { color: var(--ink-soft); }
.plain-list { margin: 0; padding-left: 1.25rem; display: grid; gap: 0.3rem; color: var(--ink-soft); }
.prose .first { color: var(--ink); font-size: var(--step-1); line-height: 1.55; }
.audiences { list-style: none; margin: 1.5rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.audiences li { border: 1px solid var(--rule-strong); border-radius: 999px; padding: 0.35rem 0.85rem; font-size: 0.92rem; color: var(--ink); }

/* Call to action band */
.cta-band { background: var(--inverse-bg); color: var(--inverse-fg); padding-block: clamp(3rem, 7vw, 5rem); }
.cta-band h2 { color: var(--inverse-fg); }
.cta-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1.5rem 3rem; align-items: end; }
.cta-band p { color: var(--inverse-soft); margin-top: 0.85rem; max-width: 40em; }

/* Inner page head */
.page-head { padding-block: clamp(2.75rem, 7vw, 5rem) clamp(2rem, 4vw, 3rem); border-bottom: 1px solid var(--rule); }
.page-head .lede { margin-top: 1.25rem; }

/* Rows: heading left, text right */
.rows { display: grid; }
.row { display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); gap: 0.75rem 3rem; padding-block: 1.75rem; border-top: 1px solid var(--rule); }
.rows .row:last-child { border-bottom: 1px solid var(--rule); }
.row h2, .row h3 { font-family: var(--font-display); font-size: 1.375rem; font-weight: 500; line-height: 1.25; letter-spacing: -0.005em; }

/* Platform layer diagram */
.stack { display: grid; gap: 0.5rem; max-width: 52rem; margin: 0; padding: 0; list-style: none; }
.layer { display: grid; grid-template-columns: minmax(0, 13rem) minmax(0, 1fr); gap: 0.35rem 1.25rem; align-items: baseline; padding: 0.95rem 1.15rem; border: 1px solid var(--rule); border-radius: 8px; background: var(--sheet); }
.layer strong { font-weight: 600; }
.layer span { color: var(--ink-soft); font-size: 0.95rem; }
.layer:last-child { border-color: var(--jade); box-shadow: inset 4px 0 0 var(--jade); }
.figure-caption { margin-top: 0.9rem; font-size: 0.85rem; color: var(--ink-faint); max-width: 52rem; }

/* Function grids on the products page */
.functions { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.75rem 2.5rem; }
.functions .item h3 { font-family: var(--font-display); font-size: 1.375rem; font-weight: 500; }
.functions.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 60rem; }
.product-head { display: grid; gap: 0.6rem; margin-bottom: 2rem; max-width: 48rem; }
.product-head .product-name { font-size: clamp(2.25rem, 1.8rem + 1.6vw, 3rem); }
.aside-note { margin-top: 1.75rem; max-width: var(--measure); font-size: 0.92rem; color: var(--ink-faint); border-left: 2px solid var(--rule-strong); padding-left: 0.9rem; }
.subhead { font-family: var(--font-display); font-size: 1.5rem; font-weight: 500; margin: 2.75rem 0 1.25rem; }

/* Forms */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); gap: 2.5rem 4rem; align-items: start; }
.form { display: grid; gap: 1.25rem; }
.field { display: grid; gap: 0.4rem; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
label, legend { font-weight: 600; font-size: 0.95rem; }
input, select, textarea {
  font: inherit; color: var(--ink); background: var(--sheet); border: 1px solid var(--rule-strong);
  border-radius: 6px; padding: 0.7rem 0.8rem; width: 100%; min-width: 0;
}
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
textarea { min-height: 9rem; resize: vertical; }
fieldset { border: 0; margin: 0; padding: 0; display: grid; gap: 0.55rem; min-width: 0; }
.check { display: flex; gap: 0.65rem; align-items: flex-start; font-weight: 400; }
.check input { width: auto; margin-top: 0.3rem; flex: none; }
.hint { color: var(--ink-faint); font-size: 0.86rem; font-weight: 400; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { padding: 1rem 1.1rem; border-radius: 8px; background: var(--jade-wash); color: var(--ink); }
.form-status.is-error { background: var(--red-wash); }
.panel { padding: 1.5rem; display: grid; gap: 1rem; }
.panel h2 { font-size: 1.375rem; }
.panel p { color: var(--ink-soft); font-size: 0.95rem; }
.email-line { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.9rem; }
.email { font-weight: 600; color: var(--ink); user-select: all; }
.copy { font: inherit; font-size: 0.85rem; font-weight: 600; color: var(--jade); background: none; border: 1px solid var(--rule-strong); border-radius: 6px; padding: 0.3rem 0.6rem; cursor: pointer; }

/* Legal documents */
.legal-doc { max-width: var(--measure); display: grid; gap: 1rem; }
.legal-doc h2 { font-family: var(--font-text); font-size: 1.125rem; font-weight: 600; margin-top: 1.5rem; letter-spacing: 0; }
.legal-doc p, .legal-doc li { color: var(--ink-soft); }
.legal-doc ol, .legal-doc ul { margin: 0; padding-left: 1.4rem; display: grid; gap: 0.4rem; }
.draft-flag { display: inline-block; background: var(--amber-wash); color: var(--amber); border-radius: 4px; padding: 0.3rem 0.6rem; font-size: 0.85rem; font-weight: 600; }

/* Utilities */
.mb-lg { margin-bottom: 2.25rem; }
.stack-sm { display: grid; gap: 1rem; align-content: start; }
.flag-line { margin-top: 1rem; }
.page-head.no-rule { border-bottom: 0; }
.annotated-row .body .first { color: var(--ink); font-size: var(--step-1); line-height: 1.55; }

/* Footer */
.site-footer { border-top: 1px solid var(--rule); padding-block: 3rem 2.5rem; font-size: 0.92rem; color: var(--ink-soft); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr); gap: 2rem 3rem; }
.footer-grid .logo { height: 1.25rem; width: auto; color: var(--ink); display: block; margin-bottom: 1rem; }
.footer-title { font-family: var(--font-text); font-size: 0.92rem; font-weight: 600; color: var(--ink); margin-bottom: 0.75rem; letter-spacing: 0; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.footer-links a { color: var(--ink-soft); text-decoration: none; }
.footer-links a:hover { color: var(--ink); text-decoration: underline; }
.footer-email { margin-top: 0.75rem; }
.legal { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--rule); display: grid; gap: 0.45rem; font-size: 0.82rem; color: var(--ink-faint); }

/* Preview ribbon (preview build only) */
.preview-ribbon { background: var(--amber-wash); color: var(--ink); font-size: 0.85rem; padding: 0.55rem var(--gutter); display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; justify-content: center; text-align: center; }
.preview-ribbon a { color: var(--ink); font-weight: 600; }

/* Brand guide */
.swatches { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.swatch { border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; background: var(--sheet); }
.swatch .chip { height: 4.5rem; }
.swatch div:last-child { padding: 0.7rem 0.8rem; font-size: 0.85rem; display: grid; gap: 0.15rem; }
.swatch code { font-size: 0.8rem; color: var(--ink-soft); }
.logo-tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.logo-tile { border: 1px solid var(--rule); border-radius: 8px; padding: 2rem 1.5rem; display: grid; place-items: center; min-height: 9rem; }
.logo-tile.on-ink { background: #15211F; border-color: #15211F; }
.logo-tile.on-paper { background: #F4F6F4; }
.logo-tile svg { width: 100%; max-width: 13rem; height: auto; }
.type-sample { display: grid; gap: 0.6rem; padding-block: 1rem; border-top: 1px solid var(--rule); }

/* Responsive */
@media (max-width: 1000px) {
  .steps { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .steps li { grid-template-columns: 3rem minmax(0, 1fr); border-top: 1px solid var(--rule); padding-block: 1rem; gap: 0.25rem 1rem; }
  .steps li::before { grid-row: 1 / span 2; font-size: 1.75rem; }
  .steps li:last-child { border-bottom: 1px solid var(--rule); }
  .functions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 1180px) {
  .menu-toggle { display: inline-flex; }
  .nav { display: none; }
  .nav.is-open {
    display: flex; flex-direction: column; align-items: flex-start; gap: 1.1rem;
    position: absolute; top: 100%; left: calc(-1 * var(--gutter)); right: calc(-1 * var(--gutter));
    padding: 1.25rem var(--gutter) 1.5rem; background: var(--paper); border-bottom: 1px solid var(--rule);
  }
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .contact-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 860px) {
  .annotated-row, .split, .row, .cta-grid, .service-featured { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-grid > :first-child { grid-column: 1 / -1; }
  .logo-tiles { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .grid-2, .principles, .products, .functions, .functions.cols-2, .field-row, .services { grid-template-columns: minmax(0, 1fr); }
  .register .finding { grid-template-columns: minmax(0, 1fr); }
  .swatches { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .layer { grid-template-columns: minmax(0, 1fr); }
  .finding { grid-template-columns: minmax(0, 1fr); }
  .finding .status { grid-row: auto; }
  .finding p { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}