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

@font-face {
  font-family: "Manrope Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 200 800;
  src: url("../fonts/manrope-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 */
  --ink-950: #070c17;
  --ink-900: #0b1220;
  --ink-800: #111a2e;
  --ink-700: #1b2742;
  --ink-600: #2a3a5c;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;
  --green-300: #86efac;
  --green-400: #4ade80;
  --green-500: #22c55e;
  --green-700: #15803d;
  --green-800: #166534;
  --green-100: #dcfce7;
  --green-50: #f0fdf4;

  /* tier 2 — semantic tokens */
  --color-bg: var(--white);
  --color-bg-subtle: var(--slate-50);
  --color-text: var(--ink-900);
  --color-text-muted: var(--slate-600);
  --color-border: var(--slate-200);
  --color-accent: var(--green-700);
  --color-accent-bright: var(--green-500);
  --color-focus: var(--green-500);

  --font-sans: "Manrope 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(1.125rem, 1.05rem + 0.35vw, 1.3125rem);
  --text-h3: clamp(1.1875rem, 1.12rem + 0.3vw, 1.375rem);
  --text-h2: clamp(1.875rem, 1.45rem + 1.9vw, 2.875rem);
  --text-h1: clamp(2.5rem, 1.7rem + 3.6vw, 4.25rem);
  --text-h1-inner: clamp(2.25rem, 1.7rem + 2.4vw, 3.5rem);

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgb(11 18 32 / 0.06), 0 1px 1px rgb(11 18 32 / 0.04);
  --shadow-md: 0 2px 4px rgb(11 18 32 / 0.04), 0 12px 28px -8px rgb(11 18 32 / 0.14);

  --container: 74rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --space-section: clamp(4rem, 3rem + 5vw, 7.5rem);
  --header-h: 4.25rem;
}

/* ---------------------------------------------------------------- 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; }
  table { border-collapse: collapse; }
}

/* ----------------------------------------------------------------- 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);
    font-size-adjust: from-font;
    line-height: 1.65;
    word-spacing: 0.04em;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    min-block-size: 100dvh;
    display: flex;
    flex-direction: column;
  }
  main { flex: 1; }
  h1, h2, h3, h4 {
    line-height: 1.12;
    letter-spacing: -0.028em;
    font-weight: 800;
    word-spacing: 0.07em;
    text-wrap: balance;
  }
  h1 { font-size: var(--text-h1); }
  h2 { font-size: var(--text-h2); }
  h3 { font-size: var(--text-h3); letter-spacing: -0.018em; line-height: 1.3; font-weight: 750; }
  p { text-wrap: pretty; }
  a { color: inherit; text-underline-offset: 0.2em; text-decoration-thickness: 0.08em; }
  strong { font-weight: 750; }
  .icon { inline-size: 1.5rem; block-size: 1.5rem; flex: none; }
  ::selection { background: var(--green-300); color: var(--ink-950); }
  :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-subtle { background: var(--color-bg-subtle); border-block: 1px solid var(--color-border); }
  .section-dark {
    background: var(--ink-900);
    color: var(--white);
    position: relative;
    isolation: isolate;
    overflow: clip;
  }
  .section-head { max-inline-size: 46rem; margin-block-end: clamp(2.25rem, 4vw, 3.5rem); }
  .section-head p { margin-block-start: 1rem; font-size: var(--text-lg); color: var(--color-text-muted); }
  .section-dark .section-head p { color: var(--slate-300); }

  .grid { display: grid; gap: clamp(1rem, 2vw, 1.5rem); }
  .grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 18.5rem), 1fr)); }
  .grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr)); }
  .split {
    display: grid;
    gap: clamp(2.5rem, 5vw, 5rem);
    align-items: center;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 25rem), 1fr));
  }
  .split-top { align-items: start; }
  .stack > * + * { margin-block-start: var(--stack, 1.25rem); }
}

/* ----------------------------------------------------------- components */
@layer components {
  /* skip link */
  .skip-link {
    position: absolute;
    inset-block-start: 0.5rem;
    inset-inline-start: 0.5rem;
    z-index: 100;
    padding: 0.625rem 1rem;
    background: var(--white);
    color: var(--ink-900);
    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;
    color: var(--white);
    background: rgb(11 18 32 / 0.92);
    -webkit-backdrop-filter: saturate(1.4) blur(14px);
    backdrop-filter: saturate(1.4) blur(14px);
    border-block-end: 1px solid rgb(255 255 255 / 0.08);
  }
  .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-weight: 800;
    font-size: 1.3125rem;
    letter-spacing: -0.035em;
    color: var(--white);
  }
  .brand-mark { inline-size: 2rem; block-size: 2rem; flex: none; }
  .brand-accent { color: var(--green-400); }

  .site-nav { display: flex; align-items: center; gap: 2rem; }
  .nav-list { display: flex; align-items: center; gap: 1.75rem; }
  .nav-list a {
    display: block;
    padding-block: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 650;
    text-decoration: none;
    color: var(--slate-300);
    transition: color 0.15s ease;
  }
  .nav-list a:hover { color: var(--white); }
  .nav-list a[aria-current="page"] {
    color: var(--white);
    text-decoration: underline;
    text-decoration-color: var(--green-400);
    text-decoration-thickness: 2px;
    text-underline-offset: 0.5em;
  }
  .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: 56rem) {
    .header-inner { flex-wrap: wrap; row-gap: 0; min-block-size: 0; padding-block: 0.75rem; }
    .nav-toggle { display: grid; }
    .site-nav {
      flex-basis: 100%;
      flex-direction: column;
      align-items: stretch;
      gap: 1rem;
      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-size: 1.0625rem;
      border-block-end: 1px solid rgb(255 255 255 / 0.08);
    }
    .nav-list a[aria-current="page"] { text-underline-offset: 0.35em; }
  }

  /* buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-block-size: 3rem;
    padding: 0.75rem 1.375rem;
    border: 1.5px solid transparent;
    border-radius: var(--radius-pill);
    font-weight: 750;
    font-size: 1rem;
    line-height: 1.2;
    letter-spacing: -0.01em;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, translate 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: 2.5rem; padding: 0.5rem 1.125rem; font-size: 0.9375rem; }
  .btn-accent { background: var(--green-500); color: var(--ink-950); }
  .btn-accent:hover { background: var(--green-400); }
  .btn-primary { background: var(--ink-900); color: var(--white); }
  .btn-primary:hover { background: var(--ink-700); }
  .btn-ghost { border-color: var(--slate-300); color: var(--ink-900); background: transparent; }
  .btn-ghost:hover { border-color: var(--ink-900); }
  :is(.section-dark, .hero, .page-hero, .cta) .btn-ghost {
    border-color: rgb(255 255 255 / 0.28);
    color: var(--white);
  }
  :is(.section-dark, .hero, .page-hero, .cta) .btn-ghost:hover { border-color: var(--white); }
  .btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-weight: 750;
    color: var(--color-accent);
    text-decoration: none;
  }
  .text-link:hover { text-decoration: underline; }
  .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(--green-400); }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-block-end: 1.125rem;
    font-size: 0.8125rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
  }
  .eyebrow::before {
    content: "";
    inline-size: 1.5rem;
    block-size: 2px;
    border-radius: 2px;
    background: currentColor;
  }
  .hero .eyebrow, .page-hero .eyebrow, .section-dark .eyebrow { color: var(--green-400); }

  /* hero */
  .hero, .page-hero {
    position: relative;
    isolation: isolate;
    overflow: clip;
    color: var(--white);
    background: var(--ink-900);
  }
  .hero::before, .page-hero::before, .section-dark::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image:
      linear-gradient(rgb(255 255 255 / 0.045) 1px, transparent 1px),
      linear-gradient(90deg, rgb(255 255 255 / 0.045) 1px, transparent 1px);
    background-size: 3.5rem 3.5rem;
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 20%, #000 20%, transparent 75%);
    mask-image: radial-gradient(ellipse 80% 70% at 70% 20%, #000 20%, transparent 75%);
  }
  .hero::after, .page-hero::after {
    content: "";
    position: absolute;
    z-index: -1;
    inset-block-start: -30%;
    inset-inline-end: -10%;
    inline-size: 55rem;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(closest-side, rgb(34 197 94 / 0.2), transparent 70%);
  }
  .hero { padding-block: clamp(3.5rem, 2rem + 6vw, 7rem) clamp(4rem, 2rem + 7vw, 8rem); }
  .hero-grid {
    display: grid;
    gap: clamp(2.5rem, 5vw, 4rem);
    align-items: center;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
  @media (max-width: 60rem) {
    .hero-grid { grid-template-columns: minmax(0, 1fr); }
    .hero-visual { max-inline-size: 34rem; }
  }
  .hero h1 em, .page-hero h1 em { font-style: normal; color: var(--green-400); }
  .hero-lead, .page-hero-lead {
    margin-block: 1.5rem 2.25rem;
    max-inline-size: 38rem;
    font-size: var(--text-lg);
    color: var(--slate-300);
  }
  .hero-notes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
    margin-block-start: 2.5rem;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--slate-300);
  }
  .hero-notes li { display: inline-flex; align-items: center; gap: 0.5rem; }
  .hero-notes .icon { inline-size: 1.125rem; block-size: 1.125rem; color: var(--green-400); }
  .hero-visual svg { inline-size: 100%; block-size: auto; overflow: visible; }
  /* font-size-adjust stops SVG text from scaling with its viewBox in Chromium */
  .hero-visual text { font-family: var(--font-sans); font-size-adjust: none; }

  .page-hero { padding-block: clamp(3.5rem, 2.5rem + 4vw, 6rem); }
  .page-hero h1 { font-size: var(--text-h1-inner); max-inline-size: 20ch; }
  .page-hero-lead { margin-block-end: 0; max-inline-size: 44rem; }
  .page-hero .btn-row { margin-block-start: 2.25rem; }

  /* cards */
  .card {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: clamp(1.5rem, 2.4vw, 2rem);
    background: var(--white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: translate 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  }
  .card:hover { translate: 0 -3px; box-shadow: var(--shadow-md); border-color: var(--slate-300); }
  .card p { color: var(--color-text-muted); }
  .card .text-link { margin-block-start: auto; padding-block-start: 0.5rem; }
  .card-icon {
    display: grid;
    place-items: center;
    inline-size: 3rem;
    block-size: 3rem;
    margin-block-end: 0.5rem;
    border-radius: var(--radius-md);
    background: var(--green-100);
    color: var(--green-800);
  }
  .card-flat { box-shadow: none; }
  .card-flat:hover { translate: none; box-shadow: none; border-color: var(--color-border); }

  /* numbered steps */
  .steps {
    display: grid;
    gap: clamp(1.5rem, 2.5vw, 2.25rem);
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 14.5rem), 1fr));
    counter-reset: step;
  }
  .step { counter-increment: step; position: relative; padding-block-start: 1.5rem; border-block-start: 2px solid var(--color-border); }
  .step::before {
    content: counter(step, decimal-leading-zero);
    display: block;
    margin-block-end: 0.875rem;
    font-size: 0.875rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--color-accent);
  }
  .step::after {
    content: "";
    position: absolute;
    inset-block-start: -2px;
    inset-inline-start: 0;
    inline-size: 3rem;
    block-size: 2px;
    background: var(--green-500);
  }
  .step h3 { margin-block-end: 0.5rem; }
  .step p { color: var(--color-text-muted); }

  /* check list */
  .checks { display: grid; gap: 1rem; }
  .checks li { display: grid; grid-template-columns: auto 1fr; gap: 0.875rem; align-items: start; }
  .checks .icon {
    inline-size: 1.5rem;
    block-size: 1.5rem;
    padding: 0.25rem;
    margin-block-start: 0.125rem;
    border-radius: 50%;
    background: var(--green-100);
    color: var(--green-800);
  }
  .section-dark .checks .icon { background: rgb(34 197 94 / 0.16); color: var(--green-400); }
  .checks strong { display: block; }
  .checks span { color: var(--color-text-muted); }
  .section-dark .checks span { color: var(--slate-300); }
  .checks-no .icon { background: #fee2e2; color: #b91c1c; }

  /* flow diagram (platform) */
  .flow {
    display: grid;
    gap: 0;
    padding: clamp(1.25rem, 2.5vw, 2rem);
    background: var(--ink-800);
    border: 1px solid var(--ink-700);
    border-radius: var(--radius-xl);
    color: var(--white);
  }
  .flow-node {
    display: grid;
    gap: 0.25rem;
    padding: 1.125rem 1.25rem;
    background: var(--ink-900);
    border: 1px solid var(--ink-600);
    border-radius: var(--radius-md);
  }
  .flow-node strong { font-size: 1.0625rem; letter-spacing: -0.01em; }
  .flow-node span { font-size: var(--text-sm); color: var(--slate-300); }
  .flow-node-accent { background: var(--green-500); border-color: var(--green-500); color: var(--ink-950); }
  .flow-node-accent span { color: var(--ink-800); font-weight: 600; }
  .flow-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.625rem 0 0.625rem 1.75rem;
    margin-inline-start: 1.75rem;
    border-inline-start: 2px dashed var(--ink-600);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--green-400);
  }
  .flow-pair { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr)); }

  /* principles */
  .principle { padding-block-start: 1.5rem; border-block-start: 1px solid var(--color-border); }
  .principle > .icon { inline-size: 1.75rem; block-size: 1.75rem; margin-block-end: 1rem; color: var(--color-accent); }
  .principle h3 { margin-block-end: 0.5rem; }
  .principle p { color: var(--color-text-muted); }

  /* definition table */
  .spec { inline-size: 100%; font-size: 1rem; }
  .spec th, .spec td { padding: 1rem 0; text-align: start; vertical-align: top; border-block-end: 1px solid var(--color-border); }
  .spec th { inline-size: 34%; padding-inline-end: 1.5rem; font-weight: 750; }
  .spec td { color: var(--color-text-muted); }
  @media (max-width: 40rem) {
    .spec th, .spec td { display: block; inline-size: 100%; }
    .spec th { padding-block-end: 0.25rem; border-block-end: 0; }
    .spec td { padding-block-start: 0; }
  }

  /* call to action */
  .cta {
    position: relative;
    isolation: isolate;
    overflow: clip;
    display: grid;
    gap: 1.75rem;
    justify-items: start;
    padding: clamp(2rem, 5vw, 4rem);
    border-radius: var(--radius-xl);
    background: var(--ink-900);
    color: var(--white);
  }
  .cta::after {
    content: "";
    position: absolute;
    z-index: -1;
    inset-block-end: -60%;
    inset-inline-end: -10%;
    inline-size: 40rem;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(closest-side, rgb(34 197 94 / 0.28), transparent 70%);
  }
  .cta h2 { max-inline-size: 22ch; }
  .cta p { max-inline-size: 40rem; font-size: var(--text-lg); color: var(--slate-300); }

  /* contact */
  .contact-card {
    display: grid;
    gap: 0.5rem;
    padding: clamp(1.5rem, 3vw, 2.25rem);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--white);
    box-shadow: var(--shadow-sm);
  }
  .contact-mail {
    font-size: clamp(1.25rem, 1rem + 1.2vw, 1.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--color-accent);
    overflow-wrap: anywhere;
  }

  /* long-form / legal */
  .prose { max-inline-size: 46rem; }
  .prose > * + * { margin-block-start: 1.125rem; }
  .prose h2 {
    margin-block-start: 3rem;
    padding-block-start: 2rem;
    border-block-start: 1px solid var(--color-border);
    font-size: clamp(1.5rem, 1.3rem + 0.8vw, 1.875rem);
  }
  .prose h3 { margin-block-start: 2rem; font-size: 1.1875rem; }
  .prose p, .prose li { color: var(--slate-700); }
  .prose ul, .prose ol { padding-inline-start: 1.375rem; }
  .prose li + li { margin-block-start: 0.5rem; }
  .prose li::marker { color: var(--color-accent); }
  .prose a { color: var(--color-accent); font-weight: 650; overflow-wrap: anywhere; }
  .prose code {
    padding: 0.125em 0.375em;
    font-size: 0.9em;
    background: var(--slate-100);
    border-radius: 0.375rem;
    overflow-wrap: anywhere;
  }
  .prose-meta { font-size: var(--text-sm); color: var(--color-text-muted); }
  .callout {
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--green-100);
    border-inline-start: 4px solid var(--green-500);
    background: var(--green-50);
  }
  .callout p { color: var(--ink-900); }
  .legal-layout {
    display: grid;
    gap: clamp(2rem, 5vw, 4.5rem);
    grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
    align-items: start;
  }
  .toc {
    position: sticky;
    inset-block-start: calc(var(--header-h) + 2rem);
    padding: 1.25rem 1.375rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-subtle);
    font-size: var(--text-sm);
  }
  .toc h2 { margin-block-end: 0.75rem; font-size: 0.8125rem; letter-spacing: 0.1em; 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; font-weight: 600; color: var(--slate-700); }
  .toc a:hover { color: var(--color-accent); text-decoration: underline; }
  @media (max-width: 56rem) {
    .legal-layout { grid-template-columns: minmax(0, 1fr); }
    .toc { position: static; }
  }

  /* 404 */
  .notfound { text-align: center; padding-block: clamp(5rem, 12vw, 9rem); }
  .notfound .notfound-code { font-size: clamp(5rem, 3rem + 12vw, 10rem); font-weight: 800; line-height: 1; letter-spacing: -0.06em; color: var(--green-400); }
  .notfound .btn-row { justify-content: center; margin-block-start: 2rem; }
  .notfound p:not(.notfound-code) { margin: 1rem auto 0; max-inline-size: 34rem; color: var(--slate-300); font-size: var(--text-lg); }

  /* footer */
  .site-footer { background: var(--ink-950); color: var(--slate-300); font-size: 0.9375rem; }
  .footer-grid {
    display: grid;
    gap: 3rem;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.5fr);
    padding-block: clamp(3rem, 6vw, 5rem) 2.5rem;
  }
  .footer-brand { display: grid; gap: 1.125rem; align-content: start; max-inline-size: 26rem; }
  .footer-mail { font-weight: 700; color: var(--white); }
  .footer-cols { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr)); }
  .footer-title {
    margin-block-end: 1rem;
    font-size: 0.8125rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--white);
  }
  .footer-cols ul { display: grid; gap: 0.625rem; padding: 0; list-style: none; }
  .footer-cols a { text-decoration: none; }
  .footer-cols a:hover, .footer-mail:hover { color: var(--green-400); text-decoration: underline; }
  .footer-bottom {
    display: grid;
    gap: 0.5rem;
    padding-block: 1.75rem 2.5rem;
    border-block-start: 1px solid rgb(255 255 255 / 0.08);
    font-size: 0.8125rem;
    color: var(--slate-400);
  }
  @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(--color-text-muted); }
  .lead-stack p { color: var(--slate-700); }
  .mt-lg { margin-block-start: 2.5rem; }
  .measure { max-inline-size: 42rem; }
}

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

  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes reveal {
      from { opacity: 0; translate: 0 1.25rem; }
    }
    .reveal {
      animation: reveal linear backwards;
      animation-timeline: view();
      animation-range: entry 0% entry 70%;
    }
  }
}

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

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