:root {
  --bg: #f7f7f5;
  --card-bg: #ffffff;
  --border: #e0ddd6;
  --text: #2b2924;
  --text-muted: #7a766c;
  --accent: #8a6d3b;
  --accent-bg: #f1e9d8;
  --warn-bg: #fdecec;
  --warn-text: #8a3a2c;
  --history-bg: #e7f2e8;
  --history-text: #2f6d3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.5rem;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

header h1 { font-size: 1.1rem; margin: 0; }
header form { margin: 0; }
header button {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.8rem;
  cursor: pointer;
  color: var(--text-muted);
}

main {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.search-box input[type="text"] {
  width: 100%;
  font-size: 1.15rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
}

.search-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.4rem;
}

.result-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
  margin-top: 0.7rem;
  cursor: pointer;
}

.result-card:hover { border-color: var(--accent); }

.result-card .name { font-weight: 600; }
.result-card .description { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.2rem; }
.result-card .match-badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: var(--accent-bg);
  color: var(--accent);
  margin-left: 0.5rem;
}

.result-card .match-badge.history {
  background: var(--history-bg);
  color: var(--history-text);
}

.result-card .match-badge.history-weak {
  background: var(--warn-bg);
  color: var(--warn-text);
}

.empty-state {
  color: var(--text-muted);
  margin-top: 1.5rem;
  text-align: center;
}

.normdoc-block {
  margin-top: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--card-bg);
}

.normdoc-block > .normdoc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 0.8rem 1rem;
  background: var(--accent-bg);
  font-weight: 600;
}

.normdoc-block > .normdoc-header .document-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.8rem;
  font-weight: 400;
}

.normdoc-block > .normdoc-header a { color: var(--accent); font-weight: 400; font-size: 0.85rem; }

.research-type { padding: 0.8rem 1rem; border-top: 1px solid var(--border); }
.research-type h4 { margin: 0 0 0.5rem; font-size: 0.95rem; color: var(--text-muted); }

table.parameters { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.parameters th, table.parameters td { text-align: left; padding: 0.35rem 0.5rem; border-bottom: 1px solid var(--border); vertical-align: top; }
table.parameters th { color: var(--text-muted); font-weight: 500; font-size: 0.8rem; }

.not-accredited { background: var(--warn-bg); color: var(--warn-text); font-size: 0.72rem; padding: 0.05rem 0.4rem; border-radius: 4px; margin-left: 0.4rem; }

a.back-link { color: var(--text-muted); font-size: 0.9rem; text-decoration: none; }