:root {
  --color-deep-graphite: #1c1f24;
  --color-gunmetal: #2a2f36;
  --color-slate-grey: #353b44;
  --color-soft-white: #e6eaf0;
  --color-cool-grey: #aab2bf;
  --color-primary-accent: #58ace0;
  --color-standard-hover: #65b7e6;
  --color-elevated-hover: #74c3ec;
  --color-heading-1: #74c3ec;
  --color-pale-steel: #bbc7d3;
  --color-heading-2: #bbc7d3;
  --color-heading-3: #aab2bf;
  --color-muted-deep-accent: #2e8bc0;
  --color-charcoal-border: #444c56;
  --color-dark-logo-charcoal: #2b333b;
  --color-muted-emerald: #3fb68b;
  --alert-info: #58ace0;
  --alert-success: #3fb68b;
  --alert-attention: #c9973a;
  --alert-failure: #d64545;
  --shadow-soft: 0 24px 70px rgb(0 0 0 / 28%);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  color-scheme: dark;
  background: var(--color-deep-graphite);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: var(--color-soft-white);
  background:
    radial-gradient(circle at 50% 12%, rgb(88 172 224 / 14%), transparent 34rem),
    linear-gradient(145deg, #1c1f24 0%, #22262c 48%, #191c21 100%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover;
}

a {
  color: var(--color-primary-accent);
  padding: 0.08rem 0.16rem;
  text-decoration: none;
  border-radius: 4px;
  transition:
    color 160ms ease,
    background-color 160ms ease;
}

a:hover,
a:focus-visible {
  color: var(--color-standard-hover);
  background: rgb(101 183 230 / 10%);
}

.site-shell {
  position: relative;
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 2rem;
  overflow: hidden;
}

.content-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 44rem);
  padding: clamp(2rem, 6vw, 4rem);
  text-align: center;
  background:
    linear-gradient(180deg, rgb(42 47 54 / 94%), rgb(34 38 44 / 90%)),
    var(--color-gunmetal);
  border: 1px solid rgb(68 76 86 / 72%);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.logo-heading {
  margin: 0;
}

h1,
h2,
h3,
p {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  margin: 0 0 2.4rem;
  color: var(--color-heading-1);
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  line-height: 1;
}

h2 {
  margin-top: 1.8rem;
  color: var(--color-heading-2);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  line-height: 1.1;
}

h3 {
  margin-top: 1.3rem;
  color: var(--color-heading-3);
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  line-height: 1.2;
}

p {
  margin: 1.1rem 0 0;
  color: var(--color-cool-grey);
  font-size: 1.05rem;
  line-height: 1.7;
}

.brand-logo {
  display: block;
  width: min(100%, 30rem);
  height: auto;
  margin: 0 auto;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.link-button {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.68rem 0.9rem;
  color: var(--color-soft-white);
  background: rgb(28 31 36 / 34%);
  border: 1px solid rgb(68 76 86 / 90%);
  border-radius: 8px;
}

.link-button:hover,
.link-button:focus-visible {
  color: var(--color-soft-white);
  background: rgb(101 183 230 / 12%);
  border-color: rgb(101 183 230 / 62%);
}

.link-button-icon {
  width: 1.1rem;
  height: 1.1rem;
  margin-right: 0.52rem;
  fill: currentcolor;
  flex: 0 0 auto;
}

@media (width <= 40rem) {
  .site-shell {
    padding: 1rem;
  }

  .content-panel {
    padding: 1.6rem;
  }

  .brand-logo {
    margin-bottom: 1.4rem;
  }

  .link-row {
    align-items: stretch;
    flex-direction: column;
  }

  .link-button {
    justify-content: center;
  }

}