html, body {
  height: 100%;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  background-color: #152355;
  color: #f6f9f6;
  font-size: 18px;
}

.main-content {
  flex: 1;
  padding: 20px;
}

#topbar-nav {
  background-color: #000b58;
  padding: 5px 10px;
  display: flex;
  align-items: center;
}

#topbar-nav a {
  color: #f6f9f6;
  text-decoration: none;
  font-size: 18px;
  margin: 10px;
}

#topbar-nav img {
  width: 25px;
  height: auto;
}

#user-display {
  margin-left: auto;
  font-size: 16px;
  padding-right: 10px;
  color: #f6f9f6;
}

#bottombar-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  background-color: #000b58;
  padding: 10px 20px;
}

#bottombar-nav a {
  color: #f6f9f6;
  text-decoration: none;
  font-size: 18px;
}

/* --- BUTTONS --- */

.button-link,
button {
  background-color: #051858;
  color: #f6f9f6;
  font-size: 18px;
  height: 65px;
  width: 155px;
  border-radius: 5px;
  border: 1px solid #f6f9f6;
  text-align: center;
  line-height: 65px;
  text-decoration: none;
}

/* --- MERCH PAGE STYLES (new + integrated) --- */

.shop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
  padding: 30px;
  max-width: 1200px;
  margin: auto;
}

.shop-item {
  background: #ffffff;
  color: #000;
  border-radius: 10px;
  border: 1px solid rgba(0,0,0,0.1);
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  padding: 15px;
  text-align: center;
}

.shop-item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 8px;
  background: #e6e6e6;
}

.shop-item h3 {
  margin: 15px 0 10px;
  font-size: 18px;
  color: #0a1a3c;
}

.shop-item a {
  display: inline-block;
  font-size: 18px;
  line-height: 48px;
  height: 48px;
  color: #ffffff;
  min-width: 212px;
  background-color: #006aff;
  text-align: center;
  border-radius: 6px;
  text-decoration: none;
  margin-top: 10px;
}

.shop-item a:hover {
  background-color: #0050c7;
}