/* Mediagrowthx — site styles
   Plain CSS, no build step. Layers keep the cascade predictable. */
@layer reset, base, layout, components, utilities;

@font-face {
  font-family: "Fraunces Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("../fonts/fraunces-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}
@font-face {
  font-family: "DM Sans Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 100 1000;
  src: url("../fonts/dm-sans-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}

:root {
  color-scheme: only light;

  /* tier 1 — literal tokens */
  --paper: #fbf8f3;
  --paper-2: #f4eee5;
  --paper-3: #ebe3d6;
  --line: #e2d9ca;
  --ink: #1c1917;
  --ink-2: #44403c;
  --ink-3: #57534e;
  --white: #ffffff;
  --teal-950: #082324;
  --teal-900: #0c2f30;
  --teal-800: #113f40;
  --teal-700: #17595a;
  --teal-200: #b7d6d3;
  --teal-100: #dcebe8;
  --coral-400: #f58b72;
  --coral-500: #f26b4e;
  --coral-600: #e4572e;
  --coral-700: #b93c12;
  --coral-100: #fde6de;

  /* tier 2 — semantic tokens */
  --color-bg: var(--paper);
  --color-bg-subtle: var(--paper-2);
  --color-text: var(--ink);
  --color-text-muted: var(--ink-3);
  --color-border: var(--line);
  --color-accent: var(--coral-700);
  --color-focus: var(--coral-600);

  --font-serif: "Fraunces Variable", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-sans: "DM Sans Variable", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;

  --text-sm: 0.875rem;
  --text-base: 1.0625rem;
  --text-lg: clamp(1.1875rem, 1.1rem + 0.4vw, 1.375rem);
  --text-h3: clamp(1.375rem, 1.25rem + 0.6vw, 1.75rem);
  --text-h2: clamp(2rem, 1.5rem + 2.2vw, 3.25rem);
  --text-h1: clamp(2.75rem, 1.6rem + 5vw, 5.25rem);
  --text-h1-inner: clamp(2.5rem, 1.7rem + 3.4vw, 4.25rem);

  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-pill: 999px;

  --container: 76rem;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --space-section: clamp(4rem, 3rem + 5.5vw, 8rem);
  --header-h: 4.5rem;
}

/* ---------------------------------------------------------------- reset */
@layer reset {
  *, ::before, ::after { box-sizing: border-box; }
  html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
  body, h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
  ul[class], ol[class] { list-style: none; padding: 0; }
  img, svg { display: block; max-inline-size: 100%; }
  button { font: inherit; color: inherit; }
}

/* ----------------------------------------------------------------- base */
@layer base {
  html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 1rem);
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
  }
  body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    min-block-size: 100dvh;
    display: flex;
    flex-direction: column;
  }
  main { flex: 1; }
  h1, h2, h3 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.06;
    letter-spacing: -0.025em;
    text-wrap: balance;
  }
  h1 { font-size: var(--text-h1); }
  h2 { font-size: var(--text-h2); }
  h3 { font-size: var(--text-h3); line-height: 1.2; letter-spacing: -0.015em; }
  h4 { font-size: 1.0625rem; font-weight: 700; line-height: 1.35; }
  p { text-wrap: pretty; }
  a { color: inherit; text-underline-offset: 0.22em; text-decoration-thickness: 0.07em; }
  strong { font-weight: 700; }
  .icon { inline-size: 1.5rem; block-size: 1.5rem; flex: none; }
  ::selection { background: var(--coral-100); color: var(--ink); }
  :focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 3px;
    border-radius: 0.25rem;
  }
}

/* --------------------------------------------------------------- layout */
@layer layout {
  .container {
    inline-size: min(100% - 2 * var(--gutter), var(--container));
    margin-inline: auto;
  }
  .section { padding-block: var(--space-section); }
  .section-flush { padding-block-start: 0; }
  .section-none { padding-block: 0; }
  .section-subtle { background: var(--color-bg-subtle); }
  .section-dark { background: var(--teal-900); color: var(--paper); }
  .section-rule { border-block-start: 1px solid var(--color-border); }

  .section-head {
    display: grid;
    gap: 1.25rem clamp(2rem, 5vw, 5rem);
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: end;
    margin-block-end: clamp(2.5rem, 5vw, 4.5rem);
  }
  .section-head > :first-child { grid-column: 1 / -1; }
  .section-head p:not(.eyebrow) { font-size: var(--text-lg); color: var(--color-text-muted); }
  .section-dark .section-head p:not(.eyebrow) { color: var(--teal-200); }
  @media (max-width: 52rem) {
    .section-head { grid-template-columns: minmax(0, 1fr); }
  }

  .split {
    display: grid;
    gap: clamp(2.5rem, 6vw, 6rem);
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 25rem), 1fr));
    align-items: center;
  }
  .split-top { align-items: start; }
  .cols-3 {
    display: grid;
    gap: clamp(2rem, 4vw, 3.5rem);
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  }
  .stack > * + * { margin-block-start: var(--stack, 1.25rem); }
}

/* ----------------------------------------------------------- components */
@layer components {
  .skip-link {
    position: absolute;
    inset-block-start: 0.5rem;
    inset-inline-start: 0.5rem;
    z-index: 100;
    padding: 0.625rem 1rem;
    background: var(--teal-900);
    color: var(--paper);
    font-weight: 700;
    border-radius: var(--radius-sm);
    translate: 0 -200%;
  }
  .skip-link:focus-visible { translate: 0 0; }

  /* header */
  .site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: 50;
    background: rgb(251 248 243 / 0.94);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-block-end: 1px solid var(--color-border);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-block-size: var(--header-h);
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
    font-family: var(--font-serif);
    font-size: 1.4375rem;
    font-weight: 600;
    letter-spacing: -0.025em;
    color: var(--ink);
  }
  .brand-mark { inline-size: 2rem; block-size: 2rem; flex: none; }
  .brand-accent { color: var(--coral-600); }
  .brand-on-dark { color: var(--paper); }
  .brand-on-dark .brand-accent { color: var(--coral-500); }

  .site-nav { display: flex; align-items: center; gap: 2.25rem; }
  .nav-list { display: flex; align-items: center; gap: 2rem; }
  .nav-list a {
    display: block;
    padding-block: 0.5rem;
    font-size: 0.9688rem;
    font-weight: 500;
    text-decoration: none;
    color: var(--ink-2);
    transition: color 0.15s ease;
  }
  .nav-list a:hover { color: var(--coral-700); }
  .nav-list a[aria-current="page"] {
    color: var(--ink);
    font-weight: 700;
    text-decoration: underline;
    text-decoration-color: var(--coral-600);
    text-decoration-thickness: 2px;
    text-underline-offset: 0.45em;
  }
  .nav-toggle {
    display: none;
    place-items: center;
    inline-size: 2.75rem;
    block-size: 2.75rem;
    margin-inline-end: -0.5rem;
    background: transparent;
    border: 0;
    border-radius: var(--radius-sm);
    cursor: pointer;
  }
  .nav-toggle .icon-close { display: none; }
  .nav-toggle[aria-expanded="true"] .icon-open { display: none; }
  .nav-toggle[aria-expanded="true"] .icon-close { display: block; }

  @media (max-width: 52rem) {
    .header-inner { flex-wrap: wrap; row-gap: 0; min-block-size: 0; padding-block: 0.875rem; }
    .nav-toggle { display: grid; }
    .site-nav {
      flex-basis: 100%;
      flex-direction: column;
      align-items: stretch;
      gap: 1.25rem;
      padding-block: 0.25rem 1.5rem;
    }
    .site-nav:not([data-open]) { display: none; }
    .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
    .nav-list a {
      padding-block: 0.9375rem;
      font-family: var(--font-serif);
      font-size: 1.375rem;
      border-block-end: 1px solid var(--color-border);
    }
  }

  /* buttons and links */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    min-block-size: 3.125rem;
    padding: 0.75rem 1.5rem;
    border: 1.5px solid transparent;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.2;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  }
  .btn .icon { inline-size: 1.125rem; block-size: 1.125rem; transition: translate 0.15s ease; }
  .btn:hover .icon { translate: 3px 0; }
  .btn-sm { min-block-size: 2.625rem; padding: 0.5rem 1.25rem; font-size: 0.9375rem; }
  .btn-primary { background: var(--teal-900); color: var(--paper); }
  .btn-primary:hover { background: var(--teal-700); }
  .btn-accent { background: var(--coral-500); color: var(--ink); }
  .btn-accent:hover { background: var(--coral-400); }
  .btn-ghost { border-color: var(--ink); color: var(--ink); }
  .btn-ghost:hover { background: var(--ink); color: var(--paper); }
  .section-dark .btn-ghost { border-color: rgb(251 248 243 / 0.4); color: var(--paper); }
  .section-dark .btn-ghost:hover { background: var(--paper); color: var(--teal-900); }
  .btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--ink);
    text-decoration: underline;
    text-decoration-color: var(--coral-600);
    text-decoration-thickness: 2px;
    text-underline-offset: 0.35em;
  }
  .text-link:hover { color: var(--coral-700); }
  .text-link .icon { inline-size: 1.125rem; block-size: 1.125rem; transition: translate 0.15s ease; }
  .text-link:hover .icon { translate: 3px 0; }
  .section-dark .text-link { color: var(--paper); text-decoration-color: var(--coral-500); }
  .section-dark .text-link:hover { color: var(--coral-400); }

  .eyebrow {
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-accent);
  }
  .section-dark .eyebrow { color: var(--coral-400); }

  /* hero */
  .hero { padding-block: clamp(3rem, 2rem + 5vw, 6.5rem) clamp(3.5rem, 2rem + 6vw, 7rem); }
  .hero-grid {
    display: grid;
    gap: clamp(2.5rem, 5vw, 5rem);
    align-items: center;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  @media (max-width: 62rem) {
    .hero-grid { grid-template-columns: minmax(0, 1fr); }
    .hero-art { max-inline-size: 30rem; }
  }
  .hero h1 { margin-block: 1.5rem 1.75rem; }
  .hero h1 em, .page-head h1 em { font-style: normal; color: var(--coral-600); }
  .hero-lead { max-inline-size: 40rem; font-size: var(--text-lg); color: var(--ink-2); }
  .hero .btn-row { margin-block-start: 2.25rem; }
  .hero-art svg { inline-size: 100%; block-size: auto; }
  .hero-art text { font-family: var(--font-sans); }

  .facts {
    display: grid;
    gap: 0 clamp(1.5rem, 4vw, 3.5rem);
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
    border-block-start: 1px solid var(--ink);
  }
  .fact { padding-block: 1.5rem; border-block-end: 1px solid var(--color-border); }
  .fact dt { font-family: var(--font-serif); font-size: 1.375rem; font-weight: 500; letter-spacing: -0.015em; }
  .fact dd { margin-block-start: 0.375rem; color: var(--color-text-muted); }

  /* page head (inner pages) */
  .page-head {
    padding-block: clamp(3rem, 2rem + 4vw, 5.5rem) clamp(2.5rem, 2rem + 3vw, 4.5rem);
    border-block-end: 1px solid var(--color-border);
    background:
      radial-gradient(60rem 30rem at 100% 0%, rgb(242 107 78 / 0.09), transparent 60%),
      var(--color-bg);
  }
  .page-head h1 { font-size: var(--text-h1-inner); max-inline-size: 18ch; margin-block: 1.25rem 1.5rem; }
  .page-head p:not(.eyebrow) { max-inline-size: 44rem; font-size: var(--text-lg); color: var(--ink-2); }

  /* numbered editorial rows */
  .rows { border-block-start: 1px solid var(--ink); counter-reset: row; }
  .row {
    counter-increment: row;
    display: grid;
    gap: 0.75rem clamp(1.5rem, 4vw, 4rem);
    grid-template-columns: 4.5rem minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
    padding-block: clamp(1.75rem, 3vw, 2.75rem);
    border-block-end: 1px solid var(--color-border);
  }
  .row::before {
    content: counter(row, decimal-leading-zero);
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-accent);
    padding-block-start: 0.375rem;
  }
  .row p { color: var(--color-text-muted); }
  .row ul { margin-block-start: 1rem; }
  @media (max-width: 52rem) {
    .row { grid-template-columns: minmax(0, 1fr); }
    .row::before { padding-block-start: 0; }
  }

  /* simple marked list */
  .ticks { display: grid; gap: 0.625rem; }
  .ticks li { display: grid; grid-template-columns: auto 1fr; gap: 0.75rem; align-items: start; color: var(--ink-2); }
  .ticks .icon { inline-size: 1.25rem; block-size: 1.25rem; margin-block-start: 0.25rem; color: var(--teal-700); }
  .ticks-no .icon { color: var(--coral-700); }
  .section-dark .ticks li { color: var(--teal-100); }
  .section-dark .ticks .icon { color: var(--coral-400); }

  /* statements on dark */
  .statement { padding-block-start: 1.5rem; border-block-start: 1px solid rgb(251 248 243 / 0.22); }
  .statement h3 { margin-block-end: 0.875rem; color: var(--paper); }
  .statement p { color: var(--teal-200); }

  /* plain columns with a rule */
  .note { padding-block-start: 1.5rem; border-block-start: 1px solid var(--ink); }
  .note > .icon { inline-size: 1.75rem; block-size: 1.75rem; margin-block-end: 1rem; color: var(--teal-700); }
  .note h3 { margin-block-end: 0.75rem; }
  .note p { color: var(--color-text-muted); }

  /* pipeline diagram */
  .pipeline {
    display: grid;
    gap: 0;
    padding: clamp(1.25rem, 3vw, 2.25rem);
    background: var(--white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
  }
  .pipe-node {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 1rem;
    align-items: center;
    padding: 1.125rem 1.25rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--paper);
  }
  .pipe-node .icon {
    grid-row: span 2;
    inline-size: 2.75rem;
    block-size: 2.75rem;
    padding: 0.6875rem;
    border-radius: 50%;
    background: var(--teal-100);
    color: var(--teal-800);
  }
  .pipe-node strong { font-size: 1.0625rem; line-height: 1.3; }
  .pipe-node span { font-size: var(--text-sm); color: var(--color-text-muted); }
  .pipe-node-main { background: var(--teal-900); border-color: var(--teal-900); color: var(--paper); }
  .pipe-node-main span { color: var(--teal-200); }
  .pipe-node-main .icon { background: var(--coral-500); color: var(--ink); }
  .pipe-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-block-size: 2.75rem;
    margin-inline-start: 2.5625rem;
    padding-inline-start: 1.75rem;
    border-inline-start: 2px solid var(--coral-500);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-3);
  }
  .pipe-out { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr)); }
  .pipe-out .pipe-node { grid-template-columns: 1fr; align-content: start; }

  /* definition list for API usage */
  .spec { border-block-start: 1px solid var(--ink); }
  .spec > div {
    display: grid;
    gap: 0.375rem clamp(1.5rem, 4vw, 4rem);
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    padding-block: 1.375rem;
    border-block-end: 1px solid var(--color-border);
  }
  .spec dt { font-family: var(--font-serif); font-size: 1.25rem; font-weight: 500; letter-spacing: -0.01em; }
  .spec dd { color: var(--ink-2); }
  @media (max-width: 44rem) {
    .spec > div { grid-template-columns: minmax(0, 1fr); }
  }

  /* closing call to action */
  .cta {
    display: grid;
    gap: 2rem clamp(2rem, 5vw, 5rem);
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    padding-block-start: clamp(2.5rem, 5vw, 4rem);
    border-block-start: 3px solid var(--coral-600);
  }
  .cta h2 { max-inline-size: 16ch; }
  .cta p { font-size: var(--text-lg); color: var(--color-text-muted); }
  .cta .btn-row { margin-block-start: 1.5rem; }
  @media (max-width: 52rem) {
    .cta { grid-template-columns: minmax(0, 1fr); }
  }

  /* contact */
  .contact-card {
    display: grid;
    gap: 0.75rem;
    padding: clamp(1.75rem, 3.5vw, 2.75rem);
    border-radius: var(--radius-lg);
    background: var(--teal-900);
    color: var(--paper);
  }
  .contact-card .eyebrow { color: var(--coral-400); }
  .contact-mail {
    font-family: var(--font-serif);
    font-size: clamp(1.3125rem, 1rem + 1.1vw, 1.75rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.2;
    overflow-wrap: anywhere;
    text-decoration-color: var(--coral-500);
    text-decoration-thickness: 2px;
    text-underline-offset: 0.25em;
  }
  .contact-card p:not(.eyebrow) { color: var(--teal-200); }

  /* long-form / legal */
  .prose { max-inline-size: 46rem; }
  .prose > * + * { margin-block-start: 1.125rem; }
  .prose h2 {
    margin-block-start: 3.25rem;
    padding-block-start: 2rem;
    border-block-start: 1px solid var(--color-border);
    font-size: clamp(1.625rem, 1.4rem + 0.9vw, 2.125rem);
  }
  .prose h3 {
    margin-block-start: 2rem;
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    font-weight: 700;
    letter-spacing: 0;
    line-height: 1.4;
  }
  .prose p, .prose li { color: var(--ink-2); }
  .prose ul, .prose ol { padding-inline-start: 1.375rem; }
  .prose li + li { margin-block-start: 0.5rem; }
  .prose li::marker { color: var(--coral-600); }
  .prose a { color: var(--coral-700); font-weight: 600; overflow-wrap: anywhere; }
  .prose code {
    padding: 0.125em 0.375em;
    font-size: 0.9em;
    background: var(--paper-3);
    border-radius: 0.375rem;
    overflow-wrap: anywhere;
  }
  .prose-meta { font-size: var(--text-sm); color: var(--color-text-muted); }
  .callout {
    padding: 1.375rem 1.5rem;
    border-radius: var(--radius-md);
    background: var(--teal-100);
    border-inline-start: 4px solid var(--teal-700);
  }
  .callout p { color: var(--ink); }
  .legal-layout {
    display: grid;
    gap: clamp(2rem, 5vw, 5rem);
    grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
    align-items: start;
  }
  .toc {
    position: sticky;
    inset-block-start: calc(var(--header-h) + 2rem);
    padding-block-start: 1rem;
    border-block-start: 1px solid var(--ink);
    font-size: var(--text-sm);
  }
  .toc h2 {
    margin-block-end: 0.875rem;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
  }
  .toc ol { display: grid; gap: 0.5rem; padding: 0; list-style: none; }
  .toc a { text-decoration: none; color: var(--ink-2); }
  .toc a:hover { color: var(--coral-700); text-decoration: underline; }
  @media (max-width: 56rem) {
    .legal-layout { grid-template-columns: minmax(0, 1fr); }
    .toc { position: static; }
  }

  /* 404 */
  .notfound { padding-block: clamp(5rem, 12vw, 9rem); text-align: center; }
  .notfound .notfound-code {
    font-family: var(--font-serif);
    font-size: clamp(6rem, 3rem + 14vw, 12rem);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.05em;
    color: var(--coral-600);
  }
  .notfound p:not(.notfound-code) { margin: 1.25rem auto 0; max-inline-size: 34rem; font-size: var(--text-lg); color: var(--ink-2); }
  .notfound .btn-row { justify-content: center; margin-block-start: 2.25rem; }

  /* footer */
  .site-footer { background: var(--teal-950); color: var(--teal-200); font-size: 0.9375rem; }
  .footer-top {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    justify-content: space-between;
    gap: 1.5rem 3rem;
    padding-block: clamp(3rem, 6vw, 5rem) clamp(2rem, 4vw, 3rem);
    border-block-end: 1px solid rgb(251 248 243 / 0.14);
  }
  .footer-statement {
    max-inline-size: 16ch;
    font-family: var(--font-serif);
    font-size: clamp(1.875rem, 1.4rem + 2vw, 3rem);
    line-height: 1.08;
    letter-spacing: -0.025em;
    color: var(--paper);
  }
  .footer-mail {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--paper);
    text-decoration-color: var(--coral-500);
    text-decoration-thickness: 2px;
    text-underline-offset: 0.3em;
  }
  .footer-mail:hover { color: var(--coral-400); }
  .footer-grid {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    padding-block: clamp(2rem, 4vw, 3rem);
  }
  .footer-brand { display: grid; gap: 1.125rem; align-content: start; max-inline-size: 28rem; }
  .footer-cols { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr)); }
  .footer-title {
    margin-block-end: 1rem;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--paper);
  }
  .footer-cols ul { display: grid; gap: 0.625rem; padding: 0; list-style: none; }
  .footer-cols a { text-decoration: none; }
  .footer-cols a:hover { color: var(--paper); text-decoration: underline; }
  .footer-bottom {
    display: grid;
    gap: 0.5rem;
    padding-block: 1.75rem 2.5rem;
    border-block-start: 1px solid rgb(251 248 243 / 0.14);
    font-size: 0.8125rem;
    color: rgb(183 214 211 / 0.8);
  }
  @media (max-width: 48rem) {
    .footer-grid { grid-template-columns: minmax(0, 1fr); }
  }
}

/* ------------------------------------------------------------ utilities */
@layer utilities {
  .visually-hidden {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .muted { color: var(--color-text-muted); }
  .lead { font-size: var(--text-lg); color: var(--ink-2); }
  .mt-lg { margin-block-start: 2.5rem; }
}

/* ------------------------------------------------ progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
  @view-transition { navigation: auto; }

  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes rise {
      from { opacity: 0; translate: 0 1.5rem; }
    }
    .reveal {
      animation: rise linear backwards;
      animation-timeline: view();
      animation-range: entry 0% entry 70%;
    }
  }
}

@media (forced-colors: active) {
  .btn { border-color: ButtonText; }
  .pipe-node, .contact-card { border: 1px solid CanvasText; }
}

@media print {
  .site-header, .nav-toggle, .hero-art { display: none; }
  .reveal { animation: none; }
  body { font-size: 11pt; background: #fff; }
}