:root {
  --bg: #f4efe6;
  --bg-glow: rgba(255, 220, 160, 0.35);
  --ink: #1a2a33;
  --ink-muted: #4a5c66;
  --panel: rgba(255, 255, 255, 0.72);
  --panel-hover: rgba(255, 255, 255, 0.92);
  --panel-border: rgba(26, 42, 51, 0.12);
  --accent: #1f6f8b;
  --accent-hover: #185a71;
  --shadow: 0 8px 24px rgba(26, 42, 51, 0.08);
  --radius: 16px;
  --display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --body: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1a2e;
    --bg-glow: rgba(31, 111, 139, 0.28);
    --ink: #f4ebe3;
    --ink-muted: #d4c4b8;
    --panel: rgba(21, 42, 69, 0.72);
    --panel-hover: rgba(28, 56, 90, 0.92);
    --panel-border: rgba(244, 235, 227, 0.12);
    --accent: #7ec8e3;
    --accent-hover: #b6e3f2;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  }
}

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

html {
  color-scheme: light dark;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 2rem 1.25rem 4rem;
  font-family: var(--body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

.page {
  max-width: 68rem;
  margin: 0 auto;
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: 3rem;
}

.intro {
  min-width: 0;
  flex: 1 1 16rem;
}

.intro h1 {
  margin: 0 0 0.35rem;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.1;
}

.intro p {
  margin: 0;
  max-width: 36rem;
  color: var(--ink-muted);
}

nav {
  display: flex;
  gap: 0.75rem;
}

nav a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding: 0.25rem 0;
  transition: color 0.2s ease, border-color 0.2s ease;
}

nav a:hover,
nav a:focus-visible {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
}

section {
  margin-bottom: 2.75rem;
}

section h2 {
  margin: 0 0 1rem;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 500;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (max-width: 639px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 640px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  body {
    padding: 3rem 2rem 5rem;
  }

  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-height: 4.5rem;
  padding: 1rem 1.15rem;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-decoration: none;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.card:hover {
  transform: translateY(-3px);
  background: var(--panel-hover);
  border-color: var(--accent);
  box-shadow: 0 12px 28px rgba(26, 42, 51, 0.12);
}

.card .emoji {
  font-size: 1.5rem;
}

.card .title {
  font-weight: 600;
  font-size: 1.05rem;
}