:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --border: #dce5f0;
  --text: #16324f;
  --muted: #5f7388;
  --accent: #2f6fed;
  --accent-soft: #e8f0ff;
  --success-soft: #eef8f1;
  --danger-soft: #fff1f1;
  --shadow: 0 10px 30px rgba(27, 61, 107, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #f7f9fc 0%, #edf3fa 100%);
  color: var(--text);
}
.page-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 20px 56px;
}
.hero-card, .card, .alert {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
}
.hero-card {
  padding: 28px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: start;
  margin-bottom: 24px;
}
.hero-card.compact { align-items: center; }
.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}
h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}
h2 { margin: 0 0 16px; font-size: 1.2rem; }
.hero-text, .helper-note, .section-hint { color: var(--muted); }
.badge, .result-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}
.hero-side {
  min-width: 220px;
  display: grid;
  gap: 12px;
}
.alert {
  padding: 16px 18px;
  margin-bottom: 24px;
  background: var(--danger-soft);
}
.alert ul { margin: 10px 0 0 18px; }
.main-grid, .results-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.card {
  padding: 24px;
}
.full-width {
  grid-column: 1 / -1;
}
.section-title-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 12px;
}
label {
  display: block;
  font-weight: 600;
  margin: 16px 0 8px;
}
input, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  font-size: 15px;
  color: var(--text);
  background: #fff;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(47, 111, 237, 0.12);
}
.two-col, .metric-row, .summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 8px;
}
.checkbox-card {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  background: #fff;
}
.checkbox-card input { width: auto; margin: 0; }
.chip-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}
.chip {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}
.chip-active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
}
.action-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.action-row, .footer-actions { display: flex; gap: 12px; }
button, .link-btn {
  border: none;
  border-radius: 14px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}
.primary-btn {
  background: var(--accent);
  color: #fff;
}
.secondary-btn {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}
.emphasis-card {
  background: linear-gradient(180deg, #fff 0%, #f6faff 100%);
}
.result-diagnosis {
  font-size: 1.15rem;
  line-height: 1.6;
}
.metric-box, .summary-item {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  background: #fff;
}
.metric-label {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}
.clean-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.7;
}
pre {
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 14px;
}
@media (max-width: 860px) {
  .hero-card, .action-card, .main-grid, .results-grid, .two-col, .metric-row, .summary-grid, .checkbox-grid {
    grid-template-columns: 1fr;
    display: grid;
  }
  .hero-card, .action-card { display: grid; }
}