:root {
  --font-base: "Space Grotesk", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --bg-page: #475b6f;
  --panel-bg: #ffffff;
  --panel-fg: #000000;
  --panel-border: #1f1f1f;
  --divider: #d9d9d9;
  --icon-size: 1.68rem;
  --radius-panel: 0;
  --radius-card: 0;
  --shadow-panel: 0 0.8rem 2rem rgba(0, 0, 0, 0.18);
  --gap-links: 0.5rem;

  --tone-1: #fcebdc;
  --tone-2: #e9f2dd;
  --tone-3: #e4f3f2;
  --tone-4: #e8ecfa;
  --tone-5: #f5e8f6;
  --tone-6: #fbeadf;
  --tone-7: #e9f0fa;
  --tone-8: #eef2df;
}

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

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--panel-fg);
  font-family: var(--font-base);
  line-height: 1.45;
  font-size: 1.05rem;
  font-weight: 500;
  display: grid;
  place-items: start center;
  padding: 1.25rem 0.9rem;
}

main {
  width: min(100%, 30rem);
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-panel);
  padding: clamp(1rem, 2.2vw, 1.35rem);
}

h1 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.1rem);
  letter-spacing: -0.02em;
  font-weight: 700;
}

h2.descriptive {
  margin: 0.2rem 0 0;
  font-size: clamp(1.06rem, 2.8vw, 1.16rem);
  font-weight: 500;
}

.divider {
  height: 1px;
  background: var(--divider);
  margin: 0.9rem 0 0.95rem;
}

.link-list {
  display: grid;
  gap: var(--gap-links);
}

.link-card {
  --link-bg: #efefef;
  --hover-boost: 8%;
  align-items: center;
  background: var(--link-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-card);
  color: var(--panel-fg);
  display: grid;
  gap: 0.7rem;
  grid-template-columns: var(--icon-size) 1fr;
  min-height: 2.8rem;
  padding: 0.68rem 0.82rem;
  text-decoration: none;
  transition: background-color 160ms ease, transform 160ms ease;
  font-size: 1.07rem;
  font-weight: 600;
}

.link-card:hover,
.link-card:focus-visible {
  background: color-mix(in oklab, var(--link-bg), #000 0%);
  background: color-mix(in oklab, var(--link-bg), #000 var(--hover-boost));
  transform: translateY(-1px);
}

.link-card:focus-visible {
  outline: 2px solid #000;
  outline-offset: 2px;
}

.link-icon {
  width: var(--icon-size);
  height: var(--icon-size);
  stroke: currentColor;
  stroke-width: 2.25;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}

.tone-1 { --link-bg: var(--tone-1); }
.tone-2 { --link-bg: var(--tone-2); }
.tone-3 { --link-bg: var(--tone-3); }
.tone-4 { --link-bg: var(--tone-4); }
.tone-5 { --link-bg: var(--tone-5); }
.tone-6 { --link-bg: var(--tone-6); }
.tone-7 { --link-bg: var(--tone-7); }
.tone-8 { --link-bg: var(--tone-8); }

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #2a3440;
    --panel-bg: #f7f7f7;
    --panel-fg: #000000;
    --panel-border: #121212;
    --divider: #c9c9c9;
    --shadow-panel: 0 0.8rem 2rem rgba(0, 0, 0, 0.38);
  }

  .link-card {
    --hover-boost: 12%;
  }
}