/* ---------- Custom properties ---------- */

:root {
  --color-black: #0b0d10;
  --color-charcoal: #171a1f;
  --color-gray-900: #252a31;
  --color-gray-700: #4b5563;
  --color-gray-300: #cbd1d8;
  --color-gray-200: #e3e7eb;
  --color-gray-100: #f3f5f7;
  --color-white: #ffffff;
  --color-blue: #2674d9;
  --color-blue-dark: #1557a6;

  --content-width: 74rem;
  --page-padding: clamp(1rem, 4vw, 2.5rem);

  --hero-x: 0px;
  --hero-y: 0px;

  --border-radius: 0.25rem;
  --shadow-menu: 0 1rem 2rem rgb(0 0 0 / 18%);
}

/* ---------- Base styles ---------- */

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

html {
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  min-height: 100vh;
  margin: 0;
  color: var(--color-charcoal);
  background: var(--color-white);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

a {
  color: var(--color-blue-dark);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-blue);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 0.1875rem solid var(--color-blue);
  outline-offset: 0.1875rem;
}

.content-width {
  width: min(
    calc(100% - (2 * var(--page-padding))),
    var(--content-width)
  );
  margin-inline: auto;
}

/*
  This vertical flex layout is what keeps the footer at the bottom when the
  page has little content.
*/
.site-shell {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.site-main {
  flex: 1 0 auto;
}

/* ---------- Hero header ---------- */

.hero {
  position: relative;
  display: grid;
  min-height: clamp(9rem, 22vw, 17rem);
  overflow: hidden;
  place-items: end start;
  isolation: isolate;
  background: var(--color-gray-900);
}

.hero__image {
  position: absolute;
  z-index: -2;
  inset: -8%;
  width: 116%;
  height: 116%;
  max-width: none;
  object-fit: cover;
  transform:
    translate3d(var(--hero-x), var(--hero-y), 0)
    scale(1.08);
  transition: transform 120ms ease-out;
  will-change: transform;
  pointer-events: none;
  user-select: none;
}

.hero__shade {
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      rgb(0 0 0 / 74%) 0%,
      rgb(0 0 0 / 40%) 55%,
      rgb(0 0 0 / 18%) 100%
    ),
    linear-gradient(
      0deg,
      rgb(0 0 0 / 50%) 0%,
      transparent 65%
    );
}

.hero__content {
  /* padding-block: clamp(3rem, 8vw, 6.5rem); */
  color: var(--color-white);
}

.hero__content h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(2.8rem, 8vw, 6.5rem);
  font-weight: 750;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.hero__content > p:last-of-type {
  max-width: 38rem;
  margin: 1.25rem 0 0;
  color: rgb(255 255 255 / 86%);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.hero__eyebrow,
.section-label {
  margin: 0 0 0.75rem;
  color: var(--color-blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero__eyebrow {
  color: #9ac5ff;
}

.motion-button {
  margin-top: 1.5rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid rgb(255 255 255 / 55%);
  border-radius: var(--border-radius);
  color: var(--color-white);
  background: rgb(0 0 0 / 35%);
  cursor: pointer;
}

.motion-button:hover {
  background: rgb(0 0 0 / 58%);
}

/* ---------- Primary navigation ---------- */

.site-nav {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--color-gray-200);
  color: var(--color-white);
  background: var(--color-black);
}

.site-nav__inner {
  display: flex;
  min-height: 4.25rem;
  align-items: stretch;
  justify-content: space-between;
}

.site-nav__brand {
  display: flex;
  align-items: center;
  color: var(--color-white);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav__brand:hover {
  color: #9ac5ff;
}

.nav-menu,
.submenu,
.footer-links {
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav-menu {
  display: flex;
  align-items: stretch;
}

.nav-menu > li {
  position: relative;
  display: flex;
  align-items: stretch;
}

.nav-menu a {
  color: var(--color-white);
  text-decoration: none;
}

.nav-menu > li > a,
.nav-item-row > a {
  display: flex;
  padding: 0 1rem;
  align-items: center;
  border-bottom: 0.1875rem solid transparent;
  font-size: 0.9rem;
  font-weight: 650;
}

.nav-menu > li > a:hover,
.nav-item-row > a:hover,
.nav-menu a[aria-current="page"] {
  border-bottom-color: var(--color-blue);
  color: #bad7ff;
}

.nav-item-row {
  display: flex;
  align-items: stretch;
}

.submenu-toggle {
  display: flex;
  width: 2rem;
  padding: 0;
  border: 0;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  background: transparent;
  cursor: pointer;
}

.submenu-toggle span {
  width: 0.45rem;
  height: 0.45rem;
  border-right: 0.125rem solid currentColor;
  border-bottom: 0.125rem solid currentColor;
  transform: translateY(-0.15rem) rotate(45deg);
  transition: transform 160ms ease;
}

.submenu-toggle[aria-expanded="true"] span {
  transform: translateY(0.15rem) rotate(225deg);
}

.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  display: none;
  min-width: 14rem;
  padding: 0.5rem;
  border: 1px solid #343941;
  background: var(--color-charcoal);
  box-shadow: var(--shadow-menu);
}

.submenu a {
  display: block;
  padding: 0.65rem 0.75rem;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  white-space: nowrap;
}

.submenu a:hover,
.submenu a:focus-visible {
  color: var(--color-white);
  background: var(--color-gray-900);
}

.has-submenu.is-open > .submenu {
  display: block;
}

@media (hover: hover) and (pointer: fine) {
  .has-submenu:hover > .submenu,
  .has-submenu:focus-within > .submenu {
    display: block;
  }
}

.nav-toggle {
  display: none;
  gap: 0.55rem;
  padding: 0;
  border: 0;
  align-items: center;
  color: var(--color-white);
  background: transparent;
  cursor: pointer;
}

.nav-toggle__icon,
.nav-toggle__icon::before,
.nav-toggle__icon::after {
  display: block;
  width: 1.3rem;
  height: 0.125rem;
  background: currentColor;
  content: "";
  transition: transform 160ms ease;
}

.nav-toggle__icon {
  position: relative;
}

.nav-toggle__icon::before {
  position: absolute;
  top: -0.4rem;
}

.nav-toggle__icon::after {
  position: absolute;
  top: 0.4rem;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ---------- Main content ---------- */

.site-main {
  /* padding-block: clamp(3rem, 8vw, 6rem); */
}

.intro {
  max-width: 50rem;
}

.intro h2 {
  max-width: 18ch;
  margin: 0;
  color: var(--color-black);
  font-size: clamp(2rem, 5vw, 3.75rem);
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.intro__lead {
  max-width: 44rem;
  margin: 1.5rem 0 0;
  color: var(--color-gray-700);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.card-grid {
  display: grid;
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 1px solid var(--color-gray-200);
  border-top: 0.25rem solid var(--color-blue);
  background: var(--color-white);
}

.card__number {
  margin: 0;
  color: var(--color-gray-700);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.card h3 {
  margin: 0.75rem 0;
  color: var(--color-black);
  font-size: 1.4rem;
}

.card p:not(.card__number) {
  color: var(--color-gray-700);
}

.card a {
  display: inline-block;
  margin-top: 0.5rem;
  font-weight: 750;
}

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

.site-footer {
  flex-shrink: 0;
  padding-block: 1.75rem;
  border-top: 1px solid #353a42;
  color: var(--color-gray-300);
  background: var(--color-black);
}

.site-footer__inner {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.site-footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--color-gray-300);
}

.footer-links a:hover {
  color: var(--color-white);
}

/* ---------- Mobile layout ---------- */

@media (max-width: 48rem) {
  .hero {
    /* min-height: 24rem; */
    height:150px;
  }

  .hero__image {
    inset: -10%;
    width: 120%;
    height: 120%;
  }

  .site-nav__inner {
    min-height: 4rem;
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    width: calc(100% + (2 * var(--page-padding)));
    margin-inline: calc(-1 * var(--page-padding));
    border-top: 1px solid #353a42;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu > li {
    display: block;
    border-bottom: 1px solid #292e35;
  }

  .nav-menu > li > a,
  .nav-item-row > a {
    min-height: 3.25rem;
    padding-inline: var(--page-padding);
    border-bottom: 0;
    flex: 1;
  }

  .nav-item-row {
    width: 100%;
  }

  .submenu-toggle {
    width: 3.5rem;
  }

  .submenu {
    position: static;
    min-width: 0;
    padding: 0.3rem var(--page-padding) 0.75rem;
    border: 0;
    border-top: 1px solid #292e35;
    box-shadow: none;
  }

  .submenu a {
    padding: 0.75rem;
    white-space: normal;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* ---------- User preference support ---------- */

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

  .hero__image,
  .submenu-toggle span,
  .nav-toggle__icon,
  .nav-toggle__icon::before,
  .nav-toggle__icon::after {
    transition: none;
  }
}