body { font-family: system-ui, sans-serif; margin: 0; padding: 0 2rem 3rem; color: #1a1a1a; }
body.centered { display: flex; align-items: center; justify-content: center; height: 100vh; margin: 0; }
nav { display: flex; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid #ddd; margin-bottom: 1.5rem; align-items: center; }
nav a { text-decoration: none; color: #2454b0; }
h1 { margin-top: 0; }
table { border-collapse: collapse; width: 100%; margin-bottom: 2rem; }
th, td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid #eee; font-size: 0.9rem; }
tr.row-error { background: #fdeaea; }
.card { border: 1px solid #ddd; border-radius: 8px; padding: 1rem 1.25rem; margin-bottom: 1.5rem; max-width: 640px; }
.card label { display: block; margin-bottom: 0.6rem; font-size: 0.9rem; }
.card input, .card select { display: block; width: 100%; padding: 0.4rem; margin-top: 0.2rem; box-sizing: border-box; }
.inline-form { display: flex; gap: 0.4rem; align-items: center; }
.inline-form input { width: auto; }
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.3rem; margin-bottom: 0.75rem; font-size: 0.9rem; }
.link-btn { background: none; border: none; color: #2454b0; cursor: pointer; padding: 0; font: inherit; }
.danger { background: #c0392b; color: white; border: none; padding: 0.3rem 0.7rem; border-radius: 4px; cursor: pointer; }
button[type="submit"]:not(.danger):not(.link-btn) { background: #2454b0; color: white; border: none; padding: 0.4rem 0.9rem; border-radius: 4px; cursor: pointer; margin-top: 0.4rem; }
.error { color: #c0392b; }
.hint { color: #666; font-size: 0.85rem; max-width: 640px; }
.stats { display: flex; gap: 1.5rem; margin-bottom: 2rem; }
.stat { border: 1px solid #ddd; border-radius: 8px; padding: 1rem 1.5rem; text-align: center; }
.stat strong { display: block; font-size: 1.6rem; }
.stat span { color: #666; font-size: 0.85rem; }