body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--step-0);
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-paper);
  padding: 0.75rem 1.25rem;
  z-index: 200;
}

.skip-link:focus-visible {
  left: var(--gutter);
  top: 1rem;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.display-xl {
  font-family: var(--font-display);
  font-size: var(--step-5);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
  hyphens: auto;
}

.display-lg {
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
  hyphens: auto;
}

.display-md {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  overflow-wrap: break-word;
  hyphens: auto;
}

.body-lg {
  font-size: var(--step-1);
  line-height: 1.6;
  color: var(--color-slate);
  max-width: 42ch;
}

.body-sm {
  font-size: var(--step--1);
  color: var(--color-slate);
}

.eyebrow {
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 500;
}

.accent {
  color: var(--color-accent);
}

/* light section variant: re-scopes the color tokens so every component
   underneath (cards, borders, buttons) re-themes itself automatically */
.section--light {
  --color-bg: #F2F3F7;
  --color-text: #0E1016;
  --color-mist: #E4E6ED;
  --color-slate: #595E6C;
  --color-border: rgba(14, 16, 22, 0.1);
  background: var(--color-bg);
  color: var(--color-text);
}

/* accent-blue section variant: same re-theming technique, using the exact
   blue from the primary button (not a muted navy) for occasional rhythm
   breaks — text stays light since the bg is still a dark-enough blue */
.section--blue {
  --color-bg: #2E5BC4;
  --color-mist: #2456C9;
  --color-slate: #D6E2FB;
  --color-border: rgba(255, 255, 255, 0.22);
  background: linear-gradient(135deg, var(--color-accent-btn-start), var(--color-accent-dim));
  color: var(--color-ink);
}

/* the accent-blue eyebrow text is unreadable against this section's own
   blue background, so it switches to white here specifically */
.section--blue .eyebrow {
  color: var(--color-ink);
}

main {
  display: block;
  padding-top: var(--nav-height);
}

.section {
  padding-block: clamp(4rem, 8vw, 9rem);
}

.section--flush {
  padding-top: 0;
}

.section-heading {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  max-width: 48rem;
}

.section-heading--split {
  max-width: none;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.section-heading--split > div {
  max-width: 48rem;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 0.2rem;
  transition: color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}

.link-more:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.link-more--cta {
  flex-shrink: 0;
  border-bottom: none;
  padding: 0.7rem 1.1rem 0.7rem 1.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  transition: border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.link-more--cta:hover {
  border-color: var(--color-accent);
}

.link-more--cta svg {
  width: 16px;
  height: 16px;
  transition: transform var(--duration-fast) var(--ease-out);
}

.link-more--cta:hover svg {
  transform: translateX(3px);
}

.link-back {
  display: inline-block;
  color: var(--color-slate);
  margin-bottom: 1.5rem;
  transition: color var(--duration-fast) var(--ease-out);
}

.link-back:hover {
  color: var(--color-accent);
}

/* site header */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition: box-shadow var(--duration-fast) var(--ease-out);
}

.site-header.is-scrolled {
  box-shadow: 0 12px 24px -16px rgba(0, 0, 0, 0.5);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.site-header__logo-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dim));
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step--1);
  letter-spacing: 0.01em;
  flex-shrink: 0;
}

.site-header__logo-name {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 700;
}

/* footer */
.site-footer {
  padding-block: clamp(1.75rem, 3vw, 2.5rem) 1rem;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--color-mist) 55%, transparent));
  border-top: 1px solid var(--color-border);
}

.site-footer__grid {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  gap: 1.75rem clamp(2.5rem, 6vw, 5rem);
  padding-bottom: 1.25rem;
}

.site-footer__grid > * {
  min-width: 0;
}

.site-footer__brand {
  flex: 1 1 16rem;
}

.site-footer__grid .eyebrow {
  margin-bottom: 0.75rem;
  display: block;
}

.site-footer__tagline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  color: var(--color-text);
  letter-spacing: -0.01em;
  max-width: 24ch;
}

.site-footer__nav ul,
.site-footer__social ul,
.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-footer__nav a,
.site-footer__contact a,
.site-footer__social a {
  transition: color var(--duration-fast) var(--ease-out);
}

.site-footer__nav a:hover,
.site-footer__contact a:hover,
.site-footer__social a:hover {
  color: var(--color-accent-soft);
}

.site-footer__social a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.site-footer__social svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
}

.site-footer__brand p + p {
  margin-top: 0.75rem;
  max-width: 28ch;
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 1rem;
  color: var(--color-slate);
  font-size: var(--step--1);
}