:root {
  --bg: #0f172a;
  --card: #111827;
  --border: #1f2937;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #38bdf8;
  --danger: #ef4444;
  --warn: #f59e0b;
  --good: #22c55e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 1.5rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.input-card {
  display: flex;
  gap: 0.75rem;
}

input {
  flex: 1;
  padding: 0.75rem;
  background: #020617;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
}

button {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1rem;
  background: var(--accent);
  border: none;
  color: #000;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  opacity: 0.9;
}

.summary h2 {
  margin-top: 0;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  margin-left: 0.5rem;
}

.grade-A { background: var(--good); }
.grade-B { background: #84cc16; }
.grade-C { background: var(--warn); }
.grade-D { background: var(--danger); }

.module {
  margin-top: 1rem;
}

.module-header {
  display: flex;
  justify-content: space-between;
  cursor: pointer;
}

.findings {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.hidden {
  display: none;
}

.footer {
  text-align: center;
  padding: 1rem;
  color: var(--muted);
  font-size: 0.75rem;
}