:root {
  color-scheme: dark;
  --night: #07111f;
  --panel: rgba(10, 26, 45, 0.9);
  --line: #dba746;
  --light: #ffdf8a;
  --text: #f7f1df;
  --muted: #b9c2cc;
  --link: #ffd77a;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--night);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 18px;
  line-height: 1.75;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(56, 103, 154, 0.35), transparent 32rem),
    radial-gradient(circle at 78% 28%, rgba(162, 109, 36, 0.16), transparent 30rem),
    linear-gradient(160deg, #07111f 0%, #081727 52%, #050b14 100%);
}

a {
  color: var(--link);
  text-underline-offset: 0.18em;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  color: #07111f;
  background: #fff;
  border-radius: 0.5rem;
}

.skip-link:focus {
  top: 1rem;
}

header,
main,
footer {
  width: min(100% - 2rem, 880px);
  margin-inline: auto;
}

header {
  padding: 4rem 0 2rem;
  text-align: center;
}

.app-icon {
  display: block;
  width: clamp(112px, 28vw, 144px);
  height: auto;
  margin: 0 auto 1.25rem;
  border-radius: 22.5%;
  box-shadow:
    0 1rem 2.5rem rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(255, 223, 138, 0.35);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--light);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.35;
  text-wrap: balance;
}

h1 {
  margin: 0;
  color: var(--light);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: clamp(2rem, 7vw, 3.7rem);
  font-weight: 600;
  letter-spacing: 0.08em;
}

h2 {
  margin-top: 0;
  color: var(--light);
}

.subtitle {
  margin: 0.7rem 0 0;
  color: var(--muted);
}

.card {
  margin: 1rem 0;
  padding: clamp(1.2rem, 4vw, 2rem);
  background: var(--panel);
  border: 1px solid rgba(219, 167, 70, 0.7);
  border-radius: 1.25rem;
  box-shadow: 0 1.25rem 3rem rgba(0, 0, 0, 0.24);
}

.links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  padding: 0;
  list-style: none;
}

.links a {
  display: block;
  min-height: 100%;
  padding: 1.1rem;
  color: var(--text);
  text-decoration: none;
  background: rgba(20, 43, 68, 0.88);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
}

.links strong,
.links span {
  display: block;
}

.links strong {
  color: var(--light);
  font-size: 1.08rem;
}

.links span {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
}

nav {
  margin-bottom: 1rem;
}

nav a {
  display: inline-block;
  padding: 0.4rem 0;
}

dt {
  margin-top: 1rem;
  color: var(--light);
  font-weight: 700;
}

dd {
  margin-left: 0;
}

footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  text-align: center;
  font-size: 0.86rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}