body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f5f7fa;
}

header, footer {
  background: #1f3c88;
  color: white;
  text-align: center;
  padding: 20px;
}

.grid {
  max-width: 1000px;
  margin: 40px auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  padding: 0 20px;
}

.card {
  background: white;
  padding: 30px;
  text-align: center;
  text-decoration: none;
  color: #333;
  border-radius: 10px;
  font-size: 18px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}

.brand-grid img {
  max-width: 100%;
  border: 1px solid #ddd;
  padding: 10px;
  background: white;
  cursor: pointer;
}

.brand-item {
  background: white;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  text-align: center;
}

.brand-item img {
  max-width: 100%;
}

/* STANDARD */
.brand-standard {
  grid-column: span 1;
}

/* PREMIUM */
.brand-premium {
  grid-column: span 2;
  border: 2px solid #1f3c88;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.brand-item {
  position: relative;
  background: white;
  padding: 12px;
  border-radius: 8px;
  text-align: center;
  border: 1px solid #ddd;
}

.brand-item img {
  max-width: 100%;
}

/* PREMIUM */
.brand-premium {
  grid-column: span 2;
  border: 2px solid #1f3c88;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* TOOLTIP */
.brand-tooltip {
  display: none;
  position: absolute;
  bottom: 105%;
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  background: #1f3c88;
  color: white;
  padding: 10px;
  border-radius: 6px;
  font-size: 13px;
  text-align: left;
  z-index: 10;
}

.brand-tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -6px;
  border-width: 6px;
  border-style: solid;
  border-color: #1f3c88 transparent transparent transparent;
}

.brand-item:hover .brand-tooltip {
  display: block;
}

.site-header {
  background: #ffffff;
  text-align: center;
  padding: 30px 20px 20px;
  border-bottom: 1px solid #e0e0e0;
}

.logo {
  max-width: 320px;   /* safe for desktop */
  width: 100%;
  height: auto;
}

.tagline {
  margin-top: 10px;
  font-size: 14px;
  color: #6b7280;     /* calm gray */
  letter-spacing: 0.5px;
}