:root {
  --color-block: #c0392b;
  --color-needs-confirmation: #b8860b;
  --color-allow: #2e7d32;
  --color-border: #ddd;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  margin: 0;
  padding: 0;
  background: #f7f7f9;
  color: #222;
}

header {
  background: #1c2b3a;
  color: white;
  padding: 1rem 1.5rem;
}

header h1 {
  margin: 0;
  font-size: 1.25rem;
}

main {
  max-width: 900px;
  margin: 1.5rem auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.panel {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

.panel h2 {
  margin-top: 0;
  font-size: 1rem;
}

label {
  display: block;
  margin-top: 0.75rem;
  margin-bottom: 0.25rem;
  font-weight: bold;
  font-size: 0.9rem;
}

select,
textarea {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.95rem;
}

button {
  margin-top: 0.75rem;
  padding: 0.5rem 1.25rem;
  background: #1c2b3a;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
}

button:hover {
  background: #2a3f54;
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
}

.timeline li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.timeline li:last-child {
  border-bottom: none;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  color: white;
  font-size: 0.8rem;
  font-weight: bold;
}

.badge.block {
  background: var(--color-block);
}

.badge.needs_confirmation {
  background: var(--color-needs-confirmation);
}

.badge.allow {
  background: var(--color-allow);
}

.badge.contradicted {
  background: var(--color-block);
}

.badge.consistent {
  background: var(--color-allow);
}

.badge.skip {
  background: #999;
}

.reason-box {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background: #f0f0f3;
  border-radius: 4px;
  font-size: 0.9rem;
  white-space: pre-wrap;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

th,
td {
  border: 1px solid var(--color-border);
  padding: 0.4rem 0.5rem;
  text-align: left;
}

tr.mismatch {
  background: #fdecea;
}