:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-hover: #334155;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-dark: #0284c7;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 0.75rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

header {
  background: var(--surface);
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--surface-hover);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

header h1 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--accent);
}

nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 1.5rem;
  font-weight: 500;
}

nav a:hover {
  color: var(--accent);
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.3);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.card .value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.filters {
  background: var(--surface);
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.filters label {
  color: var(--muted);
  font-size: 0.875rem;
}

.filters select,
.filters input {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--surface-hover);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
}

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--surface-hover);
}

th {
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

tr:hover {
  background: var(--surface-hover);
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-stripe-yes { background: rgba(34,197,94,0.2); color: var(--success); }
.badge-stripe-no { background: rgba(239,68,68,0.2); color: var(--danger); }
.badge-high { background: rgba(34,197,94,0.2); color: var(--success); }
.badge-medium { background: rgba(245,158,11,0.2); color: var(--warning); }
.badge-low { background: rgba(148,163,184,0.2); color: var(--muted); }

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

a:hover {
  text-decoration: underline;
}

.project-detail h2 {
  margin-top: 0;
}

.project-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.project-meta .card {
  margin: 0;
}

.section {
  margin-top: 2rem;
}

.section h3 {
  color: var(--accent);
  border-bottom: 1px solid var(--surface-hover);
  padding-bottom: 0.5rem;
}

.opportunity {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.opportunity h4 {
  margin: 0 0 0.5rem;
}

.back {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--muted);
}

.score-bar {
  background: var(--bg);
  border-radius: 9999px;
  height: 0.5rem;
  overflow: hidden;
  margin-top: 0.5rem;
}

.score-bar span {
  display: block;
  height: 100%;
  background: var(--accent);
}