:root {
  --navy: #003366;
  --blue: #067eeb;
  --blue-light: #4eabff;
  --on-navy: #c9d6e6;
  --page: #f5f7fa;
  --surface: #ffffff;
  --ink: #11181c;
  --muted: #5b6770;
  --line: #d9e1ea;
  --pale: #e8f0fa;
  --youth: #2e7d5b;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0b1620;
    --surface: #132231;
    --ink: #e6edf3;
    --muted: #9aabbb;
    --line: #26384a;
    --pale: #1a3350;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: "Nunito Sans", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
}

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

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible,
.btn:focus-visible {
  outline: 3px solid var(--blue-light);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  z-index: 2;
  padding: 0.35rem 0.7rem;
  background: var(--surface);
  color: var(--ink);
  transform: translateY(-200%);
}

.skip:focus {
  transform: none;
}

.bar {
  background: var(--navy);
  color: #fff;
}

.bar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  width: min(64rem, calc(100% - 2rem));
  min-height: 4rem;
  margin-inline: auto;
  padding: 0.5rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.bar nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin-left: auto;
}

.bar nav a {
  padding: 0.35rem 0;
  color: var(--on-navy);
  font-weight: 600;
  text-decoration: none;
}

.bar nav a:hover,
.bar nav a[aria-current="page"] {
  color: #fff;
}

footer.bar {
  margin-top: 2.5rem;
}

footer.bar a {
  color: #fff;
  font-weight: 600;
}

footer .bar-inner {
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
  min-height: 0;
  padding: 1.5rem 0 2rem;
  color: var(--on-navy);
  font-size: 0.95rem;
}

address {
  font-style: normal;
}

.hero,
.features,
.sheet {
  width: min(64rem, calc(100% - 2rem));
  margin-inline: auto;
}

.hero {
  padding: 2.75rem 0 0.25rem;
}

.hero h1 {
  max-width: 18ch;
  margin: 0 0 0.6rem;
  color: var(--ink);
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.15;
}

.hero p {
  max-width: 38rem;
  margin: 0 0 1.35rem;
  font-size: 1.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.6rem;
  border: 2px solid var(--blue);
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
}

.btn:hover {
  filter: brightness(1.1);
}

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

.features {
  display: grid;
  gap: 1rem;
  margin-top: 2.25rem;
}

.card {
  padding: 1.25rem 1.25rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.icon {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border-radius: 999px;
  background: var(--pale);
  color: var(--blue);
}

.icon-youth {
  color: var(--youth);
}

.icon svg {
  width: 1.35rem;
  height: 1.35rem;
}

.card h2 {
  margin: 0.8rem 0 0.35rem;
  color: var(--ink);
  font-size: 1.15rem;
  line-height: 1.3;
}

.card p {
  margin: 0;
}

.sheet {
  width: min(42rem, calc(100% - 2rem));
  margin-top: 1.5rem;
  padding: 1.75rem 1.35rem 2rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.sheet h1 {
  margin: 0 0 0.75rem;
  color: var(--ink);
  font-size: 1.75rem;
  line-height: 1.25;
}

.sheet h2 {
  margin: 1.5rem 0 0.35rem;
  color: var(--ink);
  font-size: 1.15rem;
  line-height: 1.3;
}

.sheet ul {
  margin: 0.35rem 0 0;
  padding-left: 1.2rem;
}

.sheet li + li {
  margin-top: 0.35rem;
}

.sheet figure {
  margin: 1.5rem 0 0;
}

.sheet img {
  width: min(20rem, 100%);
  height: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.sheet figcaption {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (min-width: 800px) {
  .features {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .bar nav {
    margin-left: 0;
  }
}