:root {
  --bg: #FAFAFA;
  --bg2: #FFFFFF;
  --bg3: #F3F4F6;
  --text: #1A1A2E;
  --text2: #5A5A7A;
  --accent: #0F6E56;
  --green: #0F6E56;
  --green-light: #E6F5F0;
  --amber: #D97706;
  --amber-light: #FEF3C7;
  --red: #DC2626;
  --red-light: #FEE2E2;
  --blue: #378ADD;
  --border: #E5E7EB;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topnav {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 2rem;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.logo { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.tagline { color: var(--text2); font-size: 0.9rem; }

.breadcrumb { padding: 0.75rem 2rem; background: var(--bg2); font-size: 0.85rem; border-bottom: 1px solid var(--border); }
.breadcrumb ol { display: flex; gap: 0.5rem; list-style: none; flex-wrap: wrap; }
.breadcrumb li:not(:last-child)::after { content: ">"; margin-left: 0.5rem; color: var(--text2); }
.breadcrumb li[aria-current] { color: var(--text2); }

main { max-width: 960px; margin: 0 auto; padding: 2rem; }
section { margin-bottom: 3rem; }

footer {
  text-align: center;
  padding: 2rem;
  color: var(--text2);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}

h1 { font-size: 2rem; margin-bottom: 0.5rem; color: var(--text); }
h2 { font-size: 1.4rem; margin-bottom: 1rem; color: var(--accent); }
h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }

/* --- Hero --- */
.hero { display: flex; gap: 1.5rem; align-items: flex-start; margin-bottom: 2rem; }
.hero-text .subtitle { color: var(--text2); margin-bottom: 0.5rem; }
.intro { color: var(--text2); }

.grade-badge {
  flex-shrink: 0;
  width: 120px; height: 120px;
  border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 2.2rem; font-weight: 700;
  background: var(--bg3); color: var(--text);
  box-shadow: var(--shadow-lg);
}
.grade-badge .badge-score { font-size: 0.85rem; font-weight: 400; color: var(--text2); margin-top: 2px; }
.grade-badge.grade-Aplus, .grade-badge.grade-A { background: var(--green); color: #fff; }
.grade-badge.grade-Aplus .badge-score, .grade-badge.grade-A .badge-score { color: rgba(255,255,255,0.8); }
.grade-badge.grade-Bplus, .grade-badge.grade-B { background: #1D9E75; color: #fff; }
.grade-badge.grade-Bplus .badge-score, .grade-badge.grade-B .badge-score { color: rgba(255,255,255,0.8); }
.grade-badge.grade-Cplus, .grade-badge.grade-C { background: var(--amber); color: #fff; }
.grade-badge.grade-Cplus .badge-score, .grade-badge.grade-C .badge-score { color: rgba(255,255,255,0.8); }
.grade-badge.grade-D { background: #EA580C; color: #fff; }
.grade-badge.grade-D .badge-score { color: rgba(255,255,255,0.8); }
.grade-badge.grade-F { background: var(--red); color: #fff; }
.grade-badge.grade-F .badge-score { color: rgba(255,255,255,0.8); }

.grade-pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem; font-weight: 600;
}
.grade-pill.grade-Aplus, .grade-pill.grade-A { background: var(--green-light); color: var(--green); }
.grade-pill.grade-Bplus, .grade-pill.grade-B { background: var(--green-light); color: #1D9E75; }
.grade-pill.grade-Cplus, .grade-pill.grade-C { background: var(--amber-light); color: var(--amber); }
.grade-pill.grade-D { background: #FFF7ED; color: #EA580C; }
.grade-pill.grade-F { background: var(--red-light); color: var(--red); }

/* --- Strengths & Weaknesses --- */
.highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 2rem; }
.highlight-group h3 { margin-bottom: 0.75rem; }
.highlight-group h3.strengths-title { color: var(--green); }
.highlight-group h3.weaknesses-title { color: var(--red); }
.highlight-item {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  box-shadow: var(--shadow);
}
.highlight-item .highlight-grade {
  font-size: 1.4rem; font-weight: 700; min-width: 48px; text-align: center;
}
.highlight-item .highlight-grade.grade-good { color: var(--green); }
.highlight-item .highlight-grade.grade-bad { color: var(--red); }
.highlight-item .highlight-name { font-weight: 600; font-size: 0.95rem; }
.highlight-item .highlight-score { font-size: 0.85rem; color: var(--text2); }

/* --- Category groups --- */
.category-group {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.category-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid transparent;
  transition: background 0.15s;
}
.category-header:hover { background: var(--bg3); }
.category-header h3 { margin: 0; font-size: 1.05rem; }
.category-header .category-meta { display: flex; align-items: center; gap: 0.75rem; }
.category-header .toggle-icon { font-size: 1.2rem; color: var(--text2); transition: transform 0.2s; }
.category-group.open .category-header { border-bottom-color: var(--border); }
.category-group.open .toggle-icon { transform: rotate(45deg); }
.category-body { display: none; padding: 1rem 1.25rem; }
.category-group.open .category-body { display: block; }

/* --- Score cards --- */
.score-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.score-card {
  background: var(--bg2);
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.score-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.score-card-header h3.layer-name { font-weight: 600; font-size: 0.95rem; margin: 0; }
.score-bar-wrap {
  height: 6px; background: var(--bg3); border-radius: 3px; margin-bottom: 0.3rem;
}
.score-bar {
  height: 100%; border-radius: 3px;
  transition: width 0.3s;
}
.score-bar.bar-green { background: var(--green); }
.score-bar.bar-amber { background: var(--amber); }
.score-bar.bar-red { background: #EA580C; }
.score-value { font-size: 0.8rem; color: var(--text2); }
.city-pct { font-size: 0.75rem; color: var(--accent); font-weight: 500; margin-left: 0.3rem; }
.score-context { font-size: 0.85rem; color: var(--text2); margin-top: 0.4rem; }

/* --- Personas --- */
.persona-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.persona-card {
  background: var(--bg2);
  padding: 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  box-shadow: var(--shadow);
}
.persona-card h3 { color: var(--text); }
.persona-card p { color: var(--text2); }
.persona-card ul { margin-top: 0.5rem; padding-left: 1.2rem; }
.persona-card li { font-size: 0.9rem; color: var(--text2); margin-bottom: 0.3rem; }

/* --- FAQ --- */
details {
  background: var(--bg2);
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
summary::before { content: "+ "; color: var(--accent); }
details[open] summary::before { content: "- "; }
details p { margin-top: 0.5rem; color: var(--text2); }

/* --- Nearby --- */
.nearby-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0.75rem; }
.nearby-card {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg2);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.nearby-card:hover { background: var(--bg3); text-decoration: none; }

/* --- CTA --- */
.cta {
  text-align: center;
  padding: 2rem;
  background: var(--bg2);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.cta p { color: var(--text2); margin-bottom: 1rem; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-secondary { background: var(--bg3); color: var(--text); border: 1px solid var(--border); }
.btn:hover { opacity: 0.9; text-decoration: none; }

.email-form { margin-top: 1rem; display: flex; gap: 0.5rem; justify-content: center; flex-wrap: wrap; }
.email-form input[type="email"] {
  padding: 0.6rem 1rem; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 0.95rem; min-width: 240px; outline: none;
}
.email-form input[type="email"]:focus { border-color: var(--accent); }
.email-form button {
  padding: 0.6rem 1.2rem; background: var(--accent); color: #fff;
  border: none; border-radius: var(--radius); font-weight: 600; cursor: pointer;
}
.email-form button:hover { opacity: 0.9; }

/* --- Tables --- */
.neighborhood-table { display: flex; flex-direction: column; gap: 0.25rem; }
.table-header, .table-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 0.5rem;
  align-items: center;
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
}
.table-header { font-weight: 600; font-size: 0.85rem; color: var(--text2); }
.table-row { background: var(--bg2); color: var(--text); border: 1px solid var(--border); }
.table-row:hover { background: var(--bg3); text-decoration: none; }

.city-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.city-card {
  background: var(--bg2);
  padding: 1.2rem;
  border-radius: var(--radius);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.city-card:hover { background: var(--bg3); text-decoration: none; }
.city-card p { color: var(--text2); font-size: 0.9rem; }

.best-list { padding-left: 1.5rem; }
.best-list li { margin-bottom: 0.5rem; display: flex; align-items: center; gap: 0.5rem; }

.city-hero-scores { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-top: 1rem; }
.city-stat {
  background: var(--bg2);
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  text-align: center;
  min-width: 120px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.city-stat .stat-value { font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.city-stat .stat-label { font-size: 0.8rem; color: var(--text2); }

.fallback-message {
  background: var(--bg2);
  padding: 1.5rem;
  border-radius: var(--radius);
  color: var(--text2);
  text-align: center;
  border: 1px solid var(--border);
}

@media (max-width: 640px) {
  main { padding: 1rem; }
  .hero { flex-direction: column; align-items: center; text-align: center; }
  .score-grid { grid-template-columns: 1fr; }
  .highlights { grid-template-columns: 1fr; }
  .table-header, .table-row { grid-template-columns: 2fr 1fr; }
  .table-header span:nth-child(n+3), .table-row span:nth-child(n+3) { display: none; }
  h1 { font-size: 1.5rem; }
  .grade-badge { width: 100px; height: 100px; font-size: 1.8rem; }
}