:root {
  --indigo: #4f46e5;
  --ink: #1f2330;
  --muted: #8a90a2;
  --bg: #f5f6fa;
  --card: #ffffff;
  --line: #eceef4;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
.shell { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; background: var(--card); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 16px; }
.brand b { color: var(--indigo); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--indigo); }
.user { font-size: 13px; color: var(--muted); }
.content { flex: 1; display: flex; align-items: flex-start; justify-content: center; padding: 40px 20px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 32px; max-width: 560px; width: 100%;
  box-shadow: 0 8px 30px rgba(31,35,48,.05);
}
h1 { margin: 0 0 6px; font-size: 20px; }
.muted { color: var(--muted); margin: 0 0 24px; font-size: 14px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 26px; }
.stat { background: var(--bg); border-radius: 12px; padding: 18px; text-align: center; }
.stat .k { display: block; font-size: 26px; font-weight: 700; color: var(--indigo); }
.stat .l { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; }
.logout {
  display: inline-block; font-size: 13px; color: var(--muted);
  text-decoration: none; border: 1px solid var(--line); padding: 8px 14px; border-radius: 10px;
}
.logout:hover { color: var(--indigo); border-color: var(--indigo); }