:root {
  --ink: #2b2621;
  --paper: #faf7f2;
  --line: #ddd4c7;
  --accent: #5c6b4f;
  --muted: #8a8072;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  line-height: 1.7;
}

header.page-header {
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

header.page-header h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 1.5rem;
}

.plant-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.plant-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 500;
}

.plant-card .meta {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.plant-card .care-content {
  white-space: normal;
}

.state-message {
  text-align: center;
  color: var(--muted);
  padding: 3rem 1rem;
}