/* =============================================================
   elaborate.one — styles.css
   1. Fonts
   2. Tokens
   3. Reset & base
   4. Typography
   5. Layout
   6. Navigation
   7. Hero
   8. Sections
   9. Components
  10. Footer
  11. Responsive
  12. Reduced motion
   ============================================================= */

/* ---------------------------------------------- 1. Fonts ---- */

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('assets/fonts/inter-latin.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: 'Inter';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('assets/fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
    U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0,
    U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('assets/fonts/jetbrains-mono-latin.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: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('assets/fonts/jetbrains-mono-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
    U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0,
    U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* --------------------------------------------- 2. Tokens ---- */

:root {
  /* colour — taken from the business cards */
  --color-ink: #17181a;          /* near-black card stock          */
  --color-ink-soft: #1e1f22;     /* raised dark surface            */
  --color-paper: #f5f4f0;        /* warm off-white card stock      */
  --color-surface: #edece6;      /* tinted section background      */
  --color-text: #17181a;
  --color-muted: #63635f;
  --color-rule: #dedcd5;
  --color-accent: #b98209;       /* amber rule / dot               */
  --color-accent-ink: #8a5f06;   /* accent, safe for small text    */
  --color-accent-hover: #cf9212;

  /* dark context */
  --color-text-invert: #ebe9e3;
  --color-muted-invert: #9b9b98;
  --color-rule-invert: #2c2d31;
  --color-accent-invert: #e8b54a;
  --color-accent-invert-hover: #f2c464;

  /* contextual aliases, reassigned by .section--dark */
  --bg: var(--color-paper);
  --fg: var(--color-text);
  --fg-muted: var(--color-muted);
  --rule: var(--color-rule);
  --accent: var(--color-accent);
  --accent-text: var(--color-accent-ink);
  --accent-hover: var(--color-accent-hover);

  /* type */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: clamp(1rem, 0.97rem + 0.15vw, 1.0625rem);
  --text-md: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
  --text-lg: clamp(1.25rem, 1.12rem + 0.6vw, 1.5rem);
  --text-xl: clamp(1.625rem, 1.35rem + 1.3vw, 2.375rem);
  --text-2xl: clamp(2rem, 1.5rem + 2.4vw, 3.5rem);
  --text-display: clamp(2.75rem, 1.6rem + 5.6vw, 6.25rem);

  /* space */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: clamp(4.5rem, 9vw, 8rem);
  --space-3xl: clamp(6rem, 13vw, 11rem);

  --container-width: 74rem;
  --gutter: clamp(1.25rem, 5vw, 3.5rem);

  --ease: cubic-bezier(0.22, 0.61, 0.24, 1);
  --duration: 260ms;
}

/* ------------------------------------- 3. Reset & base ------ */

*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-block-start: 6rem;
}

body {
  background-color: var(--color-paper);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word;
}

ul, ol { list-style: none; padding: 0; }

a { color: inherit; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

::selection {
  background-color: var(--color-accent);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--accent, var(--color-accent));
  outline-offset: 3px;
  border-radius: 1px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  inset-block-start: -100%;
  inset-inline-start: var(--space-sm);
  z-index: 100;
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-ink);
  color: var(--color-text-invert);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  text-decoration: none;
}
.skip-link:focus { inset-block-start: var(--space-sm); }

/* ----------------------------------------- 4. Typography ---- */

h1, h2, h3 {
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p { text-wrap: pretty; }

.eyebrow {
  margin-block-end: var(--space-md);
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.eyebrow--spread { letter-spacing: 0.28em; }

.lead {
  max-width: 40ch;
  color: var(--fg-muted);
  font-size: var(--text-md);
  line-height: 1.55;
}

.footnote {
  max-width: 62ch;
  color: var(--fg-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

/* --------------------------------------------- 5. Layout ---- */

.container {
  width: 100%;
  max-width: calc(var(--container-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--space-3xl);
  background-color: var(--bg);
  color: var(--fg);
}

.section--tint { --bg: var(--color-surface); }

.section--dark {
  --bg: var(--color-ink);
  --fg: var(--color-text-invert);
  --fg-muted: var(--color-muted-invert);
  --rule: var(--color-rule-invert);
  --accent: var(--color-accent-invert);
  --accent-text: var(--color-accent-invert);
  --accent-hover: var(--color-accent-invert-hover);
}

.section__head { margin-block-end: var(--space-2xl); }
.section__head--wide { margin-block-end: var(--space-xl); }

.section__title {
  max-width: 20ch;
  font-size: var(--text-xl);
}

.section__intro {
  max-width: 52ch;
  margin-block-start: var(--space-md);
  color: var(--fg-muted);
}

/* two-column editorial split */
.split {
  display: grid;
  gap: var(--space-xl) var(--space-xl);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 60rem) {
  .split { grid-template-columns: minmax(13rem, 19rem) minmax(0, 1fr); }
  .split__aside {
    position: sticky;
    inset-block-start: 7.5rem;
    align-self: start;
  }
}

.split__aside .section__title { max-width: 16ch; }

/* --------------------------------------- 6. Navigation ------ */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
  background-color: var(--color-ink);
  color: var(--color-text-invert);
  border-block-end: 1px solid transparent;
  transition: border-color var(--duration) var(--ease);
}
.site-header.is-scrolled { border-block-end-color: var(--color-rule-invert); }

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
  max-width: calc(var(--container-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding: var(--space-md) var(--gutter);
}

.wordmark {
  display: inline-block;
  font-size: 1.375rem;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
  text-decoration: none;
}
.wordmark__dot { color: var(--color-accent-invert); }

.wordmark--mono {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  font-size: var(--text-sm);
}

.site-nav__list a {
  position: relative;
  color: var(--color-muted-invert);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}
.site-nav__list a::after {
  content: '';
  position: absolute;
  inset-block-end: -0.4em;
  inset-inline-start: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-accent-invert);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration) var(--ease);
}
.site-nav__list a:hover { color: var(--color-text-invert); }
.site-nav__list a:hover::after,
.site-nav__list a[aria-current='true']::after { transform: scaleX(1); }
.site-nav__list a[aria-current='true'] { color: var(--color-text-invert); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2xs);
  min-height: 2.75rem;
  padding: var(--space-2xs) 0;
  color: var(--color-muted-invert);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.nav-toggle__icon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 18px;
  height: 12px;
}
.nav-toggle__icon span {
  display: block;
  height: 1px;
  width: 100%;
  background-color: currentColor;
  transition: transform var(--duration) var(--ease);
}
.nav-toggle[aria-expanded='true'] { color: var(--color-text-invert); }
.nav-toggle[aria-expanded='true'] .nav-toggle__icon span:first-child { transform: translateY(2.5px) rotate(45deg); }
.nav-toggle[aria-expanded='true'] .nav-toggle__icon span:last-child { transform: translateY(-2.5px) rotate(-45deg); }

/* ----------------------------------------------- 7. Hero ---- */

.hero {
  padding-block: clamp(3rem, 7vw, 5.5rem) var(--space-2xl);
  background-color: var(--color-ink);
  color: var(--color-text-invert);
  --fg: var(--color-text-invert);
  --fg-muted: var(--color-muted-invert);
  --rule: var(--color-rule-invert);
  --accent: var(--color-accent-invert);
  --accent-text: var(--color-accent-invert);
  --accent-hover: var(--color-accent-invert-hover);
}

.hero .eyebrow {
  position: relative;
  margin-block-end: var(--space-lg);
  padding-block-start: var(--space-lg);
}
.hero .eyebrow::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 3.25rem;
  height: 2px;
  background-color: var(--color-accent-invert);
}

.hero__title {
  font-size: var(--text-display);
  font-weight: 450;
  line-height: 0.98;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hero__body {
  display: grid;
  gap: var(--space-lg);
  margin-block-start: var(--space-lg);
  max-width: 44rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md) var(--space-xl);
}

.proof {
  display: grid;
  gap: var(--space-lg) var(--space-xl);
  margin-block-start: var(--space-2xl);
  padding-block-start: var(--space-lg);
  border-block-start: 1px solid var(--color-rule-invert);
  grid-template-columns: repeat(auto-fit, minmax(min(12rem, 100%), 1fr));
}

.proof__figure {
  display: block;
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.proof__label {
  display: block;
  max-width: 28ch;
  margin-block-start: var(--space-2xs);
  color: var(--color-muted-invert);
  font-size: var(--text-sm);
  line-height: 1.5;
}

/* ------------------------------------------- 8. Sections ---- */

/* — situations — */
.situations {
  display: grid;
  gap: 0;
  counter-reset: situation;
}

.situation {
  counter-increment: situation;
  padding-block: var(--space-lg);
  border-block-start: 1px solid var(--rule);
}
.situations > .situation:last-child { border-block-end: 1px solid var(--rule); }

.situation__statement {
  position: relative;
  max-width: 30ch;
  padding-inline-start: 3.25rem;
  font-size: var(--text-lg);
  font-weight: 450;
  letter-spacing: -0.015em;
  line-height: 1.25;
}
.situation__statement::before {
  content: counter(situation, decimal-leading-zero);
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.35em;
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
}

.situation__consequence {
  max-width: 56ch;
  margin-block-start: var(--space-xs);
  padding-inline-start: 3.25rem;
  color: var(--fg-muted);
}

/* — services — */
.services { display: grid; }

.service {
  display: grid;
  gap: var(--space-sm) var(--space-lg);
  padding-block: var(--space-lg);
  border-block-start: 1px solid var(--rule);
  grid-template-columns: minmax(0, 1fr);
}
.services > .service:last-child { border-block-end: 1px solid var(--rule); }

.service__index {
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
}

.service__title {
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: -0.015em;
}

.service__proposition {
  max-width: 42ch;
  margin-block-start: var(--space-xs);
  color: var(--fg-muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--fg-muted);
}
.tags li {
  position: relative;
  padding-inline-start: 0.9rem;
}
.tags li::before {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.62em;
  width: 4px;
  height: 1px;
  background-color: var(--accent);
}

/* — outcomes — */
.outcomes {
  display: grid;
  gap: var(--space-xl) var(--space-2xl);
  grid-template-columns: repeat(auto-fit, minmax(min(22rem, 100%), 1fr));
}

.outcome {
  padding-block-start: var(--space-md);
  border-block-start: 1px solid var(--rule);
}

.outcome__figure {
  font-size: var(--text-2xl);
  font-weight: 450;
  letter-spacing: -0.04em;
  line-height: 1.05;
}
.outcome__to {
  color: var(--color-accent-invert);
  font-weight: 300;
}

.outcome__label {
  margin-block-start: var(--space-sm);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.outcome__body {
  max-width: 48ch;
  margin-block-start: var(--space-sm);
  color: var(--fg-muted);
  font-size: var(--text-sm);
  line-height: 1.65;
}

/* — experience — */
.experience {
  display: grid;
  gap: 0;
  grid-template-columns: repeat(auto-fill, minmax(min(15rem, 100%), 1fr));
  margin-block-end: var(--space-lg);
}

.experience li {
  padding-block: var(--space-sm);
  border-block-start: 1px solid var(--rule);
  font-size: var(--text-base);
  letter-spacing: -0.01em;
}

/* — why — */
.statement {
  max-width: 22ch;
  font-size: var(--text-2xl);
  font-weight: 450;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.principles {
  display: grid;
  gap: var(--space-lg) var(--space-2xl);
  grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr));
  margin-block-start: var(--space-2xl);
}

.principle {
  padding-block-start: var(--space-md);
  border-block-start: 1px solid var(--rule);
}
.principle__title {
  margin-block-end: var(--space-2xs);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.005em;
}
.principle p {
  color: var(--fg-muted);
  font-size: var(--text-sm);
  line-height: 1.65;
}

/* — partners — */
.partners {
  display: grid;
  gap: var(--space-xl) var(--space-2xl);
  grid-template-columns: repeat(auto-fit, minmax(min(22rem, 100%), 1fr));
}

.partner {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 3px minmax(0, 1fr);
}

/* the vertical accent rule taken from the business cards */
.partner__rule {
  background: linear-gradient(
    to bottom,
    var(--color-accent) 0 4.5rem,
    var(--color-rule) 4.5rem 100%
  );
}

.partner__name {
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.03em;
}

.partner__role {
  margin-block-start: var(--space-2xs);
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.partner__bio {
  max-width: 46ch;
  margin-block: var(--space-md);
  color: var(--fg-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.partner__email {
  display: inline-block;
  margin-block-start: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  text-decoration-color: var(--rule);
  text-underline-offset: 0.35em;
  transition: text-decoration-color var(--duration) var(--ease), color var(--duration) var(--ease);
}
.partner__email:hover {
  color: var(--accent-text);
  text-decoration-color: var(--accent);
}

.partners__note {
  max-width: 44ch;
  margin-block-start: var(--space-2xl);
  padding-block-start: var(--space-md);
  border-block-start: 1px solid var(--rule);
  font-size: var(--text-md);
  letter-spacing: -0.01em;
}

/* — approach — */
.steps {
  display: grid;
  gap: var(--space-lg) var(--space-2xl);
  grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr));
}

.step {
  padding-block-start: var(--space-md);
  border-block-start: 1px solid var(--rule);
}
.step__index {
  display: block;
  margin-block-end: var(--space-sm);
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
}
.step__title {
  margin-block-end: var(--space-2xs);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: -0.02em;
}
.step p {
  max-width: 34ch;
  color: var(--fg-muted);
  font-size: var(--text-sm);
  line-height: 1.65;
}

/* — contact — */
.section--contact { padding-block: var(--space-3xl); }

.contact__title {
  font-size: var(--text-2xl);
  font-weight: 450;
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.contact__lead {
  max-width: 46ch;
  margin-block-start: var(--space-lg);
  color: var(--fg-muted);
  font-size: var(--text-md);
}

.contact__list {
  display: grid;
  gap: var(--space-lg) var(--space-2xl);
  grid-template-columns: repeat(auto-fit, minmax(min(18rem, 100%), 1fr));
  margin-block-start: var(--space-2xl);
  padding-block-start: var(--space-lg);
  border-block-start: 1px solid var(--rule);
}

.contact__email {
  display: inline-block;
  font-size: var(--text-xl);
  font-weight: 450;
  letter-spacing: -0.02em;
  text-decoration: none;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 320ms var(--ease), color var(--duration) var(--ease);
}
.contact__email:hover {
  color: var(--accent);
  background-size: 100% 1px;
}

.contact__person {
  display: block;
  margin-block-start: var(--space-2xs);
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
}

/* ------------------------------------------ 9. Components --- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.75rem;
  background-color: var(--accent);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: background-color var(--duration) var(--ease), transform var(--duration) var(--ease);
}
.button:hover { background-color: var(--accent-hover); }
.button:active { transform: translateY(1px); }

.button--ghost {
  background-color: transparent;
  color: var(--color-text-invert);
  box-shadow: inset 0 0 0 1px var(--color-rule-invert);
  transition: box-shadow var(--duration) var(--ease), color var(--duration) var(--ease);
}
.button--ghost:hover {
  background-color: transparent;
  color: var(--color-accent-invert);
  box-shadow: inset 0 0 0 1px var(--color-accent-invert);
}

.button--sm {
  min-height: 2.5rem;
  padding: 0.5rem 1.125rem;
  font-size: var(--text-xs);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  min-height: 2.75rem;
  padding-block-end: 0.35em;
  border-block-end: 1px solid var(--rule);
  color: var(--fg);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: border-color var(--duration) var(--ease);
}
.link-arrow::after {
  content: '→';
  color: var(--accent);
  transition: transform var(--duration) var(--ease);
}
.link-arrow:hover::after { transform: translateX(4px); }
.link-arrow:hover { border-block-end-color: var(--accent); }

/* reveal on scroll (only when JS is running) */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
.js [data-reveal]:nth-child(2) { transition-delay: 60ms; }
.js [data-reveal]:nth-child(3) { transition-delay: 120ms; }
.js [data-reveal]:nth-child(4) { transition-delay: 180ms; }

/* ---------------------------------------------- 10. Footer -- */

.site-footer {
  padding-block: var(--space-xl);
  background-color: var(--color-ink);
  color: var(--color-text-invert);
  border-block-start: 1px solid var(--color-rule-invert);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-lg) var(--space-xl);
}

.site-footer__descriptor {
  margin-block-start: var(--space-xs);
  color: var(--color-muted-invert);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
}

.site-footer__nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--text-sm);
}
.site-footer__nav a {
  color: var(--color-muted-invert);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}
.site-footer__nav a:hover { color: var(--color-text-invert); }

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
  color: var(--color-muted-invert);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
}
.site-footer__meta a {
  text-decoration-color: var(--color-rule-invert);
  text-underline-offset: 0.3em;
  transition: color var(--duration) var(--ease);
}
.site-footer__meta a:hover { color: var(--color-accent-invert); }

/* ------------------------------------------ 11. Responsive -- */

@media (min-width: 48rem) {
  .situation {
    display: grid;
    gap: var(--space-md) var(--space-xl);
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    padding-block: var(--space-lg);
  }
  .situation__consequence {
    margin-block-start: 0.25em;
    padding-inline-start: 0;
  }

  .service {
    grid-template-columns: 3.5rem minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
    padding-block: var(--space-lg);
  }
  .service__index { padding-block-start: 0.45em; }
  .tags { padding-block-start: 0.4em; }

  .experience li { padding-inline-end: var(--space-md); }
}

@media (min-width: 64rem) {
  .hero__body {
    display: grid;
    grid-template-columns: minmax(0, 42ch) auto;
    justify-content: start;
    align-items: end;
    gap: var(--space-2xl);
    max-width: none;
  }
}

@media (max-width: 56.1875rem) {
  .js .site-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
    padding-block: var(--space-md) var(--space-sm);
    border-block-start: 1px solid var(--color-rule-invert);
  }
  .js .site-nav.is-open { display: flex; }
  .js .nav-toggle { display: inline-flex; }

  .js .site-nav__list {
    flex-direction: column;
    gap: var(--space-md);
    font-size: var(--text-md);
  }
  .site-nav__list a { color: var(--color-text-invert); }
  .js .site-nav .button { align-self: flex-start; }

  /* without JavaScript the navigation stays visible and compact */
  .no-js .site-nav { gap: var(--space-md); }
  .no-js .site-nav__list { gap: var(--space-md); }
}

@media (max-width: 30rem) {
  .hero__title { letter-spacing: -0.035em; }
  .eyebrow--spread {
    font-size: 0.6875rem;
    letter-spacing: 0.15em;
  }
  .site-footer__inner { align-items: start; }
}

/* -------------------------------------- 12. Reduced motion -- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}