/* =========================
   GLOBAL BASE STYLES
========================= */
body {
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f5f7fa;
  color: #212529;
  line-height: 1.6;
}

header {
  text-align: center;
  margin: 2rem 0;
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

header p.lead {
  color: #6c757d;
  font-size: 1.1rem;
}

/* Card styling */
.card {
  border: none;
  border-radius: 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  margin-bottom: 2rem;
}

/* Section title base */
.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
}

/* Buttons */
.btn {
  font-weight: 600;
  border-radius: 0.5rem;
  transition: all 0.2s ease-in-out;
}

.btn:hover {
  transform: translateY(-1px);
}

/* Ad placeholder */
.ad-placeholder {
  background: #f8f9fa;
  border: 2px dashed #ced4da;
  border-radius: 0.5rem;
  padding: 16px;
  text-align: center;
  color: #6c757d;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}