body {
  font-family: 'Segoe UI', system-ui, sans-serif;
}

.hero {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: #fff;
  padding: 6rem 0 5rem;
}

.hero h1 {
  font-weight: 800;
}

.section-title {
  font-weight: 700;
  margin-bottom: 2rem;
  text-align: center;
}

.card-exec img, .card-event img, .gallery-item img {
  height: 220px;
  object-fit: cover;
}

.stat-card {
  border: none;
  border-radius: 1rem;
  color: #fff;
}

.sidebar {
  width: 240px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.3) transparent;
}

.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-thumb {
  background-color: rgba(255,255,255,.3);
  border-radius: 3px;
}

.sidebar .nav-link {
  font-size: .92rem;
  padding: .4rem .75rem;
}

.sidebar .nav-link.active,
.sidebar .nav-link:hover {
  background-color: rgba(255,255,255,.15);
}

.sponsor-logo {
  max-height: 60px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: .8;
}

.receipt-box {
  border: 2px dashed #999;
  border-radius: .5rem;
  padding: 2rem;
  max-width: 600px;
  margin: 2rem auto;
}

@media print {
  .no-print { display: none !important; }
}