body {
  background: #f8f9fa;
}

.site-header .navbar {
  background-color: #2c3e50 !important;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.3rem;
}

main {
  margin-top: 80px;
}

.content-section {
  background: #fff;
  padding: 20px 30px;
  border: 1px solid #dee2e6;
  border-radius: 6px;
  margin-bottom: 20px;
}

.guarantee-box {
  background: #e8f5e9;
  border-left: 4px solid #388e3c;
  padding: 12px 18px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.selected-badge {
  display: inline-block;
  background: #27ae60;
  color: #fff;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.9rem;
  margin: 2px;
}

.prob-table th {
  background: #2c3e50;
  color: #fff;
}

.satisfaction-ok {
  color: #27ae60;
  font-weight: bold;
}

.satisfaction-none {
  color: #c0392b;
}

textarea.form-control {
  font-family: monospace;
  font-size: 0.9rem;
}

.hint {
  font-size: 0.82rem;
  color: #6c757d;
  margin-top: 3px;
}

.hero {
  background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
  color: #fff;
  padding: 48px 32px;
  border-radius: 8px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.9;
}

.logs-link {
  font-size: 0.9rem;
}