* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
}

body {
  background: #f4f6f9;
  color: #222;
}

/* ===== HEADER ===== */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 32px;
  background: #0f172a;
  color: white;
}

.logo {
  height: 48px;
}

/* ===== MAIN ===== */
.container {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 24px;
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

/* ===== CARD ===== */
.lab-card {
  background: white;
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(0,0,0,.08);
  transition: .25s;
}

.lab-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 32px rgba(0,0,0,.15);
}

.lab-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.lab-card .content {
  padding: 16px;
}

.lab-card h2 {
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: #0f172a;
}

.lab-card p {
  font-size: .9rem;
  color: #555;
}

/* ===== FOOTER ===== */
.footer {
  text-align: center;
  padding: 20px;
  color: #777;
}

.sticky-helper {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 999;
  cursor: pointer;
}

.sticky-helper img {
  width: 220px;
  height: auto;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sticky-helper img:hover {
  
  transform: scale(1.08) rotate(-2deg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}