body {
  background: linear-gradient(135deg, #1345e9 0%, #e9eafe 100%);
  font-family: 'Segoe UI', Arial, sans-serif;
  min-height: 100vh;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 130px; /* To prevent content from hiding under the fixed header */
}

/* Walmart-style Header */
.walmart-header {
  width: 100vw;
  background: #0071dc;
  color: #fff;
  font-family: 'Segoe UI', Arial, sans-serif;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 32px;
}

.logo-location {
  display: flex;
  align-items: center;
}

.walmart-logo {
  height: 40px;
  margin-right: 16px;
}

.location-info {
  display: flex;
  flex-direction: column;
}

.pickup-title {
  font-size: 0.95rem;
  font-weight: 600;
}

.pickup-location {
  font-size: 0.85rem;
  color: #ffe600;
}

/* Modern Search Bar */
.search-bar {
  flex: 1;
  display: flex;
  align-items: center;
  background: #fff;
  border-radius: 25px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 0 0px 0 0px;
  max-width: 540px;
  min-width: 320px;
  height: 44px;
  position: relative;
}

.search-icon {
  color: #9ca3af;
  font-size: 1.3rem;
  margin-right: 8px;
}

.search-bar input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 1.06rem;
  padding: 0 0px;
  height: 38px;
  box-sizing: border-box;
}


.search-btn:hover,
.search-btn:focus {
  background: linear-gradient(90deg, #005cb8 60%, #0071dc 100%);
}

/* Header Navigation */
.header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.header-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
}

.cart-icon {
  font-size: 1.5rem;
  margin-left: 10px;
}

.header-bottom {
  display: flex;
  align-items: center;
  background: #fff;
  color: #222;
  padding: 8px 32px;
  gap: 24px;
  font-size: 0.98rem;
  font-weight: 500;
}

.header-bottom a {
  color: #222;
  text-decoration: none;
  padding: 4px 10px;
  border-radius: 4px;
  transition: background 0.2s;
}

.header-bottom a:hover {
  background: #f3f4f6;
}

/* Card Section */
.card {
  background: linear-gradient(120deg, #ffffff 60%, #ede9fe 100%);
  border-radius: 20px;
  box-shadow: 0 6px 24px rgba(124, 58, 237, 0.08), 0 1.5px 6px rgba(124, 58, 237, 0.08);
  padding: 56px 60px 48px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 700px;
  width: 90vw;
  min-height: 70vh;
  justify-content: center;
}

h2 {
  color: #523aed;
  margin-bottom: 30px;
  letter-spacing: 1px;
  font-weight: 700;
}

#reader {
  margin-bottom: 28px;
  border: 2px solid #0f19c9;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.06);
}

button {
  background: linear-gradient(90deg, #1573ff 60%, #8b94fa 100%);
  color: #fff;
  border: none;
  padding: 16px 48px;
  border-radius: 8px;
  font-size: 1.15rem;
  font-weight: bold;
  cursor: pointer;
  margin: 12px 0 0 0;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.13);
  outline: none;
}

button:hover, button:focus {
  background: linear-gradient(90deg, #1573ff 60%, #8b92fa 100%);
}

a {
  text-decoration: none;
  width: 100%;
  display: flex;
  justify-content: center;
}

.success-message {
  margin-top: 18px;
  color: #22c55e;
  font-weight: 600;
  font-size: 1.1rem;
  text-align: center;
  min-height: 1.2em;
  transition: opacity 0.3s;
}

/* Responsive design for mobile devices */
@media (max-width: 700px) {
  .card {
    max-width: 98vw;
    padding: 24px 4vw 28px 4vw;
    min-height: 60vh;
  }
  #reader {
    width: 95vw !important;
    min-width: 0;
    max-width: 100%;
  }
  button {
    width: 100%;
    padding: 16px 0;
    font-size: 1.1rem;
  }
  .header-top, .header-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 8px 8vw;
    gap: 8px;
  }


}


.search-btn {
  background: linear-gradient(90deg, #0071dc 60%, #005cb8 100%);
  color: #fff;
  border: none;
  padding: 1px 24px;
  border-radius: 0 22px 22px 0;
  font-size: 1.06rem;
  font-weight: bold;
  cursor: pointer;
  height: 38px;
  margin-left: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  transition: background 0.2s, box-shadow 0.2s;
}

/* remove the hover and all styles for the search button */
.search-btn {
  all: unset;
  display: inline-block;
  cursor: pointer;
}

.search-btn {
  background: linear-gradient(90deg, #0071dc 60%, #005cb8 100%);
  color: #fff;
  border: none;
  padding: 1px 24px;
  border-radius: 0px 22px 22px 0px;
  font-size: 1.06rem;
  font-weight: bold;
  cursor: pointer;
  height: 44px;
  margin-left: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  transition: background 0.2s, box-shadow 0.2s;
}