/* The frame: reset, type, links, nav and footer. Every page loads this,
   the case studies included. */

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

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote {
  margin: 0;
}

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

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

button {
  font: inherit;
  color: inherit;
}

.display {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--navy);
}

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

/* ---------- Links and buttons ---------- */

a {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.22em;
}

a:hover {
  text-decoration-thickness: 2.5px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.btn,
.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.9rem 1.4rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.2;
  text-decoration: none;
  transition: transform var(--dur-fade) var(--ease-out), background-color var(--dur-fade);
}

.btn {
  background: var(--navy);
  color: var(--on-navy);
}

.btn:hover {
  background: #1D3761;
  transform: translateY(-1px);
}

.btn-line {
  border: 1.5px solid #848C9B;
  color: var(--ink);
}

.btn-line:hover {
  border-color: var(--navy);
}

.link-arrow {
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border-bottom: 1.5px solid currentColor;
  padding-bottom: 2px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 2px;
  background: var(--accent);
}

/* ---------- Page shell ---------- */

.page {
  overflow-x: clip;
}

.wrap {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 20;
  padding: var(--space-2) var(--space-3);
  background: var(--face);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-md);
  transform: translateY(-200%);
}

.skip-link:focus-visible {
  transform: none;
}

/* ---------- Nav ----------
   Phones: mark and Resume on one line, sections on a scrolling row beneath,
   so Marketing is always one tap away without a menu to open. */

.site-header {
  position: relative;
  z-index: 10;
}

.nav {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "mark resume"
    "links links";
  align-items: center;
  column-gap: var(--space-5);
  padding-top: var(--space-5);
}

.nav__mark {
  grid-area: mark;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.nav__badge {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 0.5rem;
  background: var(--navy);
  color: var(--on-navy);
  font-size: 0.8rem;
  letter-spacing: 0;
}

.nav__links {
  grid-area: links;
  display: flex;
  gap: var(--space-5);
  margin-inline: calc(var(--gutter) * -1);
  padding: var(--space-3) var(--gutter);
  overflow-x: auto;
  scrollbar-width: none;
}

.nav__links::-webkit-scrollbar {
  display: none;
}

.nav__links a {
  display: inline-block;
  padding-block: var(--space-2);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.nav__links a:hover,
.nav__links a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.nav__resume {
  grid-area: resume;
  padding: 0.6rem 1.1rem;
  font-size: 0.875rem;
}

@media (min-width: 52rem) {
  .nav {
    grid-template-columns: auto 1fr auto;
    grid-template-areas: "mark links resume";
    padding-block: var(--space-6);
  }

  .nav__links {
    justify-content: flex-end;
    gap: var(--space-6);
    margin-inline: 0 var(--space-3);
    padding: 0;
    overflow: visible;
  }
}

/* ---------- Footer ---------- */

.site-footer {
  margin-top: var(--space-9);
}

.footer__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-6);
  padding-block: var(--space-6) var(--space-7);
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
  color: var(--muted);
}

.footer__list a {
  display: inline-block;
  padding-block: var(--space-2);
  color: var(--text);
  text-decoration: none;
}

.footer__list a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.footer__copy {
  margin-right: auto;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}