:root {
  --bg-primary: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #24344d;
  --border-color: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-cyan: #38bdf8;
  --accent-green: #34d399;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
header {
  background-color: var(--bg-card);
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}
nav a {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 1.5rem;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}
nav a:hover, nav a.active { color: var(--text-main); }
main {
  flex: 1;
  max-width: 1100px;
  margin: 3rem auto;
  padding: 0 1.5rem;
  width: 100%;
}
.hero { text-align: center; margin-bottom: 3.5rem; }
h1 { font-size: 2.5rem; margin-bottom: 1rem; color: #ffffff; letter-spacing: -0.025em; }
p.subtitle { font-size: 1.15rem; color: var(--text-muted); max-width: 650px; margin: 0 auto; line-height: 1.6; }
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #064e3b;
  color: var(--accent-green);
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}
.pulse {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 1.75rem;
  transition: transform 0.2s, border-color 0.2s;
}
.card:hover { transform: translateY(-2px); border-color: #475569; }
.card h3 { margin-top: 0; color: #e2e8f0; font-size: 1.15rem; margin-bottom: 0.5rem; }
.card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.5; margin: 0; }
footer {
  border-top: 1px solid var(--bg-card);
  padding: 2rem;
  text-align: center;
  color: #64748b;
  font-size: 0.875rem;
}