body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #111;
  color: white;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: #1a1a1a;
  border-bottom: 1px solid #222;
}

.app-header h1 {
  margin: 0;
  font-size: 20px;
  cursor: pointer;
}

.icon-btn {
  background: #333;
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 12px;
}

.item {
  background: #222;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
}

.item img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.product {
  padding: 10px;
  text-align: center;
}

.product img {
  width: 75%;
  max-height: 420px;
  object-fit: contain;
  display: block;
  margin: 0 auto 5px;
  border-radius: 10px;
}

.product h2 {
  margin: 5px 0 10px;
  font-size: 24px;
}

.back-top, .back-bottom {
  display: block;
  margin: 10px auto;
  font-size: 18px;
  padding: 10px 24px;
  background: #333;
  color: white;
  border-radius: 12px;
  border: none;
  cursor: pointer;
}

.size-row {
  display: grid;
  grid-template-columns: 60px 70px 80px 70px;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  padding: 8px 0;
  border-bottom: 1px solid #333;
}

.size-row div:first-child {
  font-size: 22px;
  text-align: left;
}

.size-row button {
  font-size: 30px;
  font-weight: bold;
  width: 60px;
  height: 55px;
  padding: 0;
  border-radius: 10px;
  border: none;
  cursor: pointer;
}

.minus { background: #444; color: white; }
.plus { background: #0a84ff; color: white; }
.count { font-size: 28px; font-weight: bold; text-align: center; }

/* Admin & Form Styles */
.admin-panel { padding: 16px; max-width: 500px; margin: 0 auto; }
.admin-form { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.admin-form input { padding: 12px; border-radius: 8px; border: 1px solid #444; background: #222; color: white; font-size: 16px; }
.admin-form button { padding: 14px; border-radius: 8px; border: none; background: #34c759; color: white; font-size: 18px; font-weight: bold; cursor: pointer; }
.admin-item-row { display: flex; justify-content: space-between; align-items: center; padding: 10px; background: #222; margin-bottom: 8px; border-radius: 8px; }
.delete-btn { background: #ff3b30; color: white; border: none; padding: 6px 12px; border-radius: 6px; cursor: pointer; }
.empty-state { text-align: center; padding: 40px 20px; color: #888; }