/* ==========================================================================
   Vincubate Ventures — Design System
   Swiss minimalism · pure black & white · zero radius · borders over shadows
   ========================================================================== */

/* Self-hosted fonts (latin subset) */
@font-face {
  font-family: "DM Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/assets/fonts/dmsans-var.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+2013-2014, U+2018-201A, U+201C-201E, U+2022, U+2026, U+20AC;
}

@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/assets/fonts/poppins-600.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+2013-2014, U+2018-201A, U+201C-201E, U+2022, U+2026, U+20AC;
}

@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/poppins-700.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+2013-2014, U+2018-201A, U+201C-201E, U+2022, U+2026, U+20AC;
}

@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("/assets/fonts/poppins-800.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+2013-2014, U+2018-201A, U+201C-201E, U+2022, U+2026, U+20AC;
}

/* Brand font — the word "vincubate" is always set in League Spartan */
@font-face {
  font-family: "League Spartan";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/leaguespartan-700.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+2013-2014, U+2018-201A, U+201C-201E, U+2022, U+2026, U+20AC;
}

:root {
  --color-bg: #ffffff;
  --color-fg: #000000;
  --color-muted: #f5f5f5;
  --color-muted-fg: #525252;
  --color-faint-fg: #8a8a8a;
  --color-border: #000000;
  --color-hairline: #e5e5e5;

  --font-heading: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-brand: "League Spartan", "Poppins", sans-serif;

  --radius: 0px;
  --container: 1200px;
  --gutter: 1.5rem;
  --section-y: clamp(4.5rem, 10vw, 8rem);

  --border-hairline: 1px solid var(--color-hairline);
  --border-thin: 1px solid var(--color-border);
  --border-thick: 2px solid var(--color-border);

  --transition: 200ms ease;
}

/* --------------------------------------------------------------------------
   Reset
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-fg);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
}

::selection {
  background: var(--color-fg);
  color: var(--color-bg);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.display-xl {
  font-size: clamp(2.75rem, 7.5vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.display-l {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.display-m {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

.lead {
  font-size: clamp(1.125rem, 1.8vw, 1.375rem);
  line-height: 1.55;
  color: var(--color-muted-fg);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.eyebrow--tag {
  border: var(--border-thin);
  padding: 0.35rem 0.85rem;
}

.text-muted {
  color: var(--color-muted-fg);
}

/* The brand word "vincubate" — always League Spartan, always lowercase.
   Slightly larger than the surrounding copy so it reads as a wordmark. */
.brand {
  font-family: var(--font-brand);
  font-size: 1.15em;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  text-transform: lowercase;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-y);
  scroll-margin-top: 90px;
}

.section--muted {
  background: var(--color-muted);
}

.section--inverted {
  background: var(--color-fg);
  color: var(--color-bg);
}

.section-head {
  max-width: 46rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.section-head .lead {
  margin-top: 1.25rem;
}

.section-index {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--color-faint-fg);
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  gap: var(--gutter);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.9rem 1.9rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  border: var(--border-thick);
  border-radius: var(--radius);
  background: var(--color-fg);
  color: var(--color-bg);
  transition: background var(--transition), color var(--transition);
}

.btn:hover {
  background: var(--color-bg);
  color: var(--color-fg);
}

.btn--outline {
  background: transparent;
  color: var(--color-fg);
}

.btn--outline:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

.btn--inverted {
  background: var(--color-bg);
  color: var(--color-fg);
  border-color: var(--color-bg);
}

.btn--inverted:hover {
  background: transparent;
  color: var(--color-bg);
}

.btn--sm {
  padding: 0.55rem 1.2rem;
  font-size: 0.9rem;
  border-width: 1px;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  border-bottom: var(--border-thick);
  padding-bottom: 0.2rem;
  transition: gap var(--transition);
}

.arrow-link:hover {
  gap: 0.9rem;
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: var(--border-hairline);
  transition: border-color var(--transition);
}

.site-header.is-scrolled {
  border-bottom: var(--border-thin);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 72px;
}

.site-header__brand img {
  height: 36px;
  width: auto;
}

.site-header__brand .brand {
  font-size: 1.6rem;
  color: var(--color-fg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  padding-block: 0.35rem;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-bottom-color: var(--color-fg);
}

/* Mega menu (nav groups) */
.nav-group__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: none;
  border: none;
  padding-block: 0.35rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-fg);
  border-bottom: 2px solid transparent;
}

.nav-group__toggle::after {
  content: "+";
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1;
  transition: transform var(--transition);
}

.nav-group__toggle:hover,
.nav-group__toggle[aria-expanded="true"] {
  border-bottom-color: var(--color-fg);
}

.nav-group__toggle[aria-expanded="true"]::after {
  transform: rotate(45deg);
}

.nav-panel {
  display: none;
}

.nav-panel.is-open {
  display: block;
}

@media (min-width: 993px) {
  .nav-panel {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: var(--border-thick);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }

  .nav-panel__inner {
    max-width: var(--container);
    margin-inline: auto;
    padding: 2.5rem var(--gutter) 3rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
}

.nav-col h3 {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-faint-fg);
  margin-bottom: 0.9rem;
}

.nav-col ul {
  list-style: none;
  display: grid;
  gap: 0.15rem;
}

.nav-col a {
  display: block;
  padding: 0.3rem 0;
  font-size: 0.95rem;
  color: var(--color-muted-fg);
  border-bottom: none;
}

.nav-col a:hover {
  color: var(--color-fg);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.nav-col a.nav-col__hub {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-fg);
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  border: var(--border-thin);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.lang-switch a,
.lang-switch span {
  padding: 0.35rem 0.65rem;
  border-bottom: none;
}

.lang-switch .is-active {
  background: var(--color-fg);
  color: var(--color-bg);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: var(--border-thin);
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-fg);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 992px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 1rem var(--gutter) 2rem;
    background: var(--color-bg);
    transform: translateX(100%);
    transition: transform 250ms ease;
    overflow-y: auto;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav a {
    width: 100%;
    padding: 1.1rem 0;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    border-bottom: var(--border-hairline);
  }

  .site-nav .nav-group {
    width: 100%;
  }

  .site-nav .nav-group__toggle {
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 1.1rem 0;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    border-bottom: var(--border-hairline);
  }

  .site-nav .nav-panel {
    border-bottom: var(--border-hairline);
  }

  .site-nav .nav-panel__inner {
    display: grid;
    gap: 1.75rem;
    padding: 1rem 0 1.75rem;
  }

  .site-nav .nav-col a {
    width: 100%;
    padding: 0.45rem 0;
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 400;
    border-bottom: none;
  }

  .site-nav .nav-col a.nav-col__hub {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
  }

  .site-nav .lang-switch {
    margin-top: 1.5rem;
  }

  .site-nav .lang-switch a {
    width: auto;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    border-bottom: none;
  }

  .site-nav .btn {
    margin-top: 1.5rem;
    width: 100%;
  }
}

body.nav-locked {
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  padding-top: calc(72px + clamp(3.5rem, 9vw, 7rem));
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
  border-bottom: var(--border-thick);
}

.hero--sub {
  padding-top: calc(72px + 2rem);
}

.hero__title {
  max-width: 17ch;
}

.hero__title .outline {
  color: transparent;
  -webkit-text-stroke: 2px var(--color-fg);
}

.hero__lead {
  max-width: 42rem;
  margin-top: 1.75rem;
}

.hero__actions {
  margin-top: 2.5rem;
}

.hero__facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: var(--border-thin);
  margin-top: clamp(3rem, 6vw, 5rem);
}

.hero__facts > div {
  padding: 1.5rem;
}

.hero__facts > div + div {
  border-left: var(--border-thin);
}

.hero__facts h3,
.hero__facts-title {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
  color: var(--color-fg);
}

.hero__facts p {
  font-size: 0.95rem;
  color: var(--color-muted-fg);
}

@media (max-width: 768px) {
  .hero__facts {
    grid-template-columns: 1fr;
  }

  .hero__facts > div + div {
    border-left: none;
    border-top: var(--border-thin);
  }
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  display: flex;
  flex-direction: column;
  border: var(--border-hairline);
  background: var(--color-bg);
  padding: 2rem;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--color-fg);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-muted-fg);
  flex-grow: 1;
}

.card .arrow-link {
  margin-top: 1.5rem;
  align-self: flex-start;
}

.card__icon {
  font-size: 1.75rem;
  line-height: 1;
  margin-bottom: 1.25rem;
}

/* Featured (flagship) cards */
.feature-card {
  display: flex;
  flex-direction: column;
  border: var(--border-thick);
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--color-bg);
  transition: background var(--transition), color var(--transition);
}

.feature-card:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

.feature-card:hover p {
  color: var(--color-bg);
}

.feature-card:hover .arrow-link {
  border-color: var(--color-bg);
}

.feature-card .eyebrow {
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--color-muted-fg);
  flex-grow: 1;
  transition: color var(--transition);
}

.feature-card .arrow-link {
  margin-top: 2rem;
  align-self: flex-start;
}

/* --------------------------------------------------------------------------
   Numbered service rows (editorial list)
   -------------------------------------------------------------------------- */
.service-rows {
  border-top: var(--border-thin);
}

.service-row {
  display: grid;
  grid-template-columns: 5rem 1fr 2fr auto;
  gap: 2rem;
  align-items: baseline;
  padding: 2rem 0;
  border-bottom: var(--border-thin);
}

.service-row__index {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-faint-fg);
}

.service-row h3 {
  font-size: 1.35rem;
}

.service-row p {
  color: var(--color-muted-fg);
}

@media (max-width: 992px) {
  .service-row {
    grid-template-columns: 3rem 1fr;
    gap: 0.75rem 1.5rem;
  }

  .service-row p,
  .service-row .arrow-link {
    grid-column: 2;
  }

  .service-row .arrow-link {
    margin-top: 0.75rem;
  }
}

/* --------------------------------------------------------------------------
   Portfolio
   -------------------------------------------------------------------------- */
.portfolio-card {
  border: var(--border-hairline);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition);
}

.portfolio-card:hover {
  border-color: var(--color-fg);
}

.portfolio-card__logo {
  height: 72px;
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.portfolio-card__logo img {
  max-height: 64px;
  width: auto;
  filter: grayscale(1);
  transition: filter var(--transition);
}

.portfolio-card:hover .portfolio-card__logo img {
  filter: grayscale(0);
}

.portfolio-card__tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: var(--border-thin);
  padding: 0.25rem 0.6rem;
  margin-bottom: 1rem;
}

.portfolio-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.portfolio-card p {
  font-size: 0.95rem;
  color: var(--color-muted-fg);
  flex-grow: 1;
}

.portfolio-card .arrow-link {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  align-self: flex-start;
}

/* --------------------------------------------------------------------------
   Process steps
   -------------------------------------------------------------------------- */
.steps {
  counter-reset: step;
  display: grid;
  gap: 0;
  border: var(--border-thin);
}

.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1.5rem;
  padding: 1.75rem;
}

.step + .step {
  border-top: var(--border-thin);
}

.step::before {
  content: "0" counter(step);
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.step h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.step p {
  color: var(--color-muted-fg);
}

@media (max-width: 640px) {
  .step {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
}

/* --------------------------------------------------------------------------
   Checklist / benefit list
   -------------------------------------------------------------------------- */
.checklist {
  list-style: none;
  display: grid;
  gap: 1rem;
}

.checklist li {
  display: grid;
  grid-template-columns: 1.6rem 1fr;
  gap: 0.85rem;
  align-items: start;
}

.checklist li::before {
  content: "";
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.3rem;
  background: var(--color-fg);
  clip-path: polygon(14% 44%, 0 60%, 40% 100%, 100% 16%, 84% 4%, 39% 68%);
}

.section--inverted .checklist li::before {
  background: var(--color-bg);
}

.checklist strong {
  font-family: var(--font-heading);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   FAQ (native details/summary)
   -------------------------------------------------------------------------- */
.faq {
  border-top: var(--border-thin);
}

.faq details {
  border-bottom: var(--border-thin);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq details > div {
  padding: 0 0 1.5rem;
  color: var(--color-muted-fg);
  max-width: 52rem;
}

/* --------------------------------------------------------------------------
   Split layout (text + aside)
   -------------------------------------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

@media (max-width: 992px) {
  .split {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Problem / pain-point blocks
   -------------------------------------------------------------------------- */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: var(--border-thin);
  border-left: var(--border-thin);
}

.pain-grid > div {
  padding: 1.75rem;
  border-right: var(--border-thin);
  border-bottom: var(--border-thin);
}

.pain-grid h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.pain-grid p {
  font-size: 0.98rem;
  color: var(--color-muted-fg);
}

@media (max-width: 768px) {
  .pain-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Tech / tag list
   -------------------------------------------------------------------------- */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
}

.tag-list li {
  border: var(--border-thin);
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.section--inverted .tag-list li {
  border-color: var(--color-bg);
}

/* --------------------------------------------------------------------------
   CTA band
   -------------------------------------------------------------------------- */
.cta-band {
  background: var(--color-fg);
  color: var(--color-bg);
  padding-block: clamp(3.5rem, 8vw, 6rem);
}

.cta-band .lead {
  color: #b8b8b8;
  max-width: 40rem;
  margin-top: 1.25rem;
}

.cta-band .btn-row {
  margin-top: 2.25rem;
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact-info {
  display: grid;
  gap: 0;
  border: var(--border-thin);
}

.contact-info > div {
  padding: 1.5rem;
}

.contact-info > div + div {
  border-top: var(--border-thin);
}

.contact-info h3 {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  font-family: var(--font-body);
}

.contact-info a:hover {
  text-decoration: underline;
}

.form-grid {
  display: grid;
  gap: 1.25rem;
}

.form-field label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font: inherit;
  border: var(--border-thin);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-fg);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: 2px solid var(--color-fg);
  outline-offset: 0;
}

.form-status {
  display: none;
  padding: 1rem 1.25rem;
  border: var(--border-thin);
  font-weight: 600;
}

.form-status.is-visible {
  display: block;
}

.form-status--error {
  background: var(--color-fg);
  color: var(--color-bg);
}

.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-fg);
  color: var(--color-bg);
  padding-block: clamp(3rem, 6vw, 5rem) 2rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
}

.site-footer__wordmark {
  font-family: var(--font-brand);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  text-transform: lowercase;
}

.site-footer__tagline {
  margin-top: 0.75rem;
  color: #b8b8b8;
  letter-spacing: 0.14em;
  font-size: 0.85rem;
}

.site-footer h3 {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
  font-family: var(--font-body);
}

.site-footer ul {
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.site-footer ul a {
  color: #d4d4d4;
  font-size: 0.95rem;
}

.site-footer ul a:hover {
  color: var(--color-bg);
  text-decoration: underline;
}

.site-footer__bottom {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #333;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
  color: #b8b8b8;
}

@media (max-width: 992px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Reveal on scroll
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 500ms ease, transform 500ms ease;
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

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

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

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2.5rem; }
.mt-5 { margin-top: 4rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
.max-w-prose { max-width: 46rem; }

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 200;
  background: var(--color-fg);
  color: var(--color-bg);
  padding: 0.75rem 1.25rem;
}

.skip-link:focus {
  left: var(--gutter);
  top: var(--gutter);
}

/* --------------------------------------------------------------------------
   Breadcrumbs
   -------------------------------------------------------------------------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  font-size: 0.85rem;
  color: var(--color-muted-fg);
  margin-bottom: 2rem;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--color-faint-fg);
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

.breadcrumbs [aria-current="page"] {
  color: var(--color-fg);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Long-form prose (knowledge pages)
   -------------------------------------------------------------------------- */
.prose {
  max-width: 52rem;
}

.prose h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 2.75rem 0 1rem;
}

.prose h3 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
}

.prose p {
  margin-bottom: 1.1rem;
}

.prose ul,
.prose ol {
  margin: 0 0 1.25rem 1.25rem;
  display: grid;
  gap: 0.5rem;
}

.prose a {
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}

.prose strong {
  font-weight: 700;
}

.toc {
  border: var(--border-thin);
  padding: 1.5rem;
  margin: 2.5rem 0;
  max-width: 52rem;
}

.toc h2 {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.toc ol {
  list-style: none;
  display: grid;
  gap: 0.5rem;
  counter-reset: toc;
}

.toc ol a {
  display: inline-flex;
  gap: 0.75rem;
  counter-increment: toc;
}

.toc ol a::before {
  content: counter(toc, decimal-leading-zero);
  font-weight: 700;
  color: var(--color-faint-fg);
}

.toc ol a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Reference / case-study box (Pauly)
   -------------------------------------------------------------------------- */
.case-box {
  border: var(--border-thick);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

.case-box__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: var(--color-fg);
  color: var(--color-bg);
  padding: 0.3rem 0.7rem;
  margin-bottom: 1rem;
}

.case-box h3 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  margin-bottom: 0.75rem;
}

.case-box p {
  color: var(--color-muted-fg);
  max-width: 38rem;
}

.case-box__actions {
  display: grid;
  gap: 0.75rem;
}

@media (max-width: 768px) {
  .case-box {
    grid-template-columns: 1fr;
  }

  .case-box__actions {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .case-box__actions .btn {
    width: 100%;
  }
}