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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

.container { max-width: 720px; margin: 0 auto; padding: 16px; }

.topbar {
  background: #4a90d9;
  color: white;
  padding: 8px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.topbar nav a {
  color: white;
  text-decoration: none;
  margin-right: 12px;
  font-size: 14px;
}
.user-bar { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.user-bar select { padding: 2px 4px; border-radius: 4px; border: none; }
.user-bar a { color: white; }

.card {
  background: white;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.card h3 { margin-bottom: 8px; }

.record-form {
  background: white;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.record-form input, .record-form select {
  padding: 8px;
  border: 1px solid #ddd;
  border-radius: 4px;
  flex: 1;
  min-width: 120px;
}
.record-form button {
  padding: 8px 16px;
  background: #4a90d9;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

table { width: 100%; border-collapse: collapse; background: white; border-radius: 8px; overflow: hidden; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid #eee; font-size: 14px; }
th { background: #f8f9fa; font-weight: 600; }

.btn-sm { padding: 4px 8px; font-size: 12px; border: none; border-radius: 4px; cursor: pointer; }
.btn-danger { background: #e74c3c; color: white; }

.error { color: #e74c3c; margin-bottom: 12px; }