body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    color: #3a4a4e; /* soft dark teal */
}

.tablet-wrapper {
    display: flex;
    flex-direction: column;
    width: 90%;
    max-width: 1300px;
    height: 90%;
    background: #fffefc; /* pearl white */
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 0 25px rgba(120, 176, 176, 0.3); /* soft teal shadow */
    border: 2px solid #c8e3dc; /* light seafoam */
}

.header-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    background-color: #a0d8d3; /* muted seafoam green */
    padding: 14px 24px;
    border-bottom: 2px solid #7accc2; /* darker seafoam */
    box-shadow: 0 4px 10px rgba(122, 204, 194, 0.5);
}

.header-bar h1 {
    margin: 0;
    font-size: 24px;
    color: #ffffff;
    font-weight: bold;
    font-family: 'Arial', sans-serif;
    text-shadow: 0 0 3px #7accc2;
}

.header-logo {
    height: 36px;
    width: auto;
}

.content-wrapper {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.products-panel {
    flex: 7;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 20px;
    background: #e6f0ef; /* pale aqua */
    overflow-y: auto;
}

.product {
    background: #fffdfb; /* pearl white */
    border-radius: 12px;
    padding: 14px;
    text-align: center;
    border: 1px solid #b8d8d2; /* light seafoam border */
    box-shadow: 0 0 6px rgba(105, 160, 154, 0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-image {
    background-color: #d1e7e3; /* light aqua */
    border-radius: 10px;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    width: 100%;
    margin-bottom: 10px;
}

.product img {
    max-height: 100px;
    object-fit: contain;
    max-width: 100%;
}

.product h4 {
    margin: 0;
    font-size: 16px;
    color: #3a4a4e; /* dark teal */
}

.product p {
    margin: 5px 0;
    font-weight: bold;
    color: #7accc2; /* seafoam */
}

.product.out-of-stock {
    background: #fcefee; /* very pale coral */
}

.product.out-of-stock p {
    color: #e57272; /* soft coral red */
}

.product button {
    padding: 6px 12px;
    margin-top: 8px;
    background: #7accc2; /* seafoam */
    color: #3a4a4e; /* dark teal */
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.product button:hover {
    background: #5bb3a9;
}

.product.out-of-stock button {
    background: #ccc;
    cursor: not-allowed;
}

.cart-panel {
    flex: 3;
    background: #f1f8f7; /* pale aqua */
    padding: 20px;
    display: flex;
    flex-direction: column;
    border-left: 2px solid #c8e3dc; /* light seafoam */
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #3a4a4e; /* dark teal */
}

.cart-header h2 {
    margin: 0;
    font-size: 20px;
}

#close-btn {
    background: transparent;
    border: none;
    font-size: 20px;
    color: #3a4a4e; /* dark teal */
    cursor: pointer;
}

#cart-items {
    flex-grow: 1;
    overflow-y: auto;
    margin: 15px 0;
}

.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
    color: #3a4a4e; /* dark teal */
}

.cart-item-image img {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    object-fit: cover;
}

.cart-item-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.cart-item-price {
    font-size: 13px;
    color: #7accc2; /* seafoam */
}

.remove-btn {
    background: transparent;
    border: none;
    font-size: 18px;
    color: #e57272; /* soft coral red */
    cursor: pointer;
}

.cart-footer {
    border-top: 1px solid #b8d8d2; /* light seafoam */
    padding-top: 12px;
}

.total-price {
    font-weight: bold;
    font-size: 18px;
    color: #3a4a4e; /* dark teal */
}

.payment-buttons button {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    cursor: pointer;
    font-weight: bold;
    color: #fff;
    transition: background-color 0.3s ease;
}

#pay-cash {
    background: #7accc2; /* seafoam */
    color: #3a4a4e; /* dark teal */
}

#pay-cash:hover {
    background: #5bb3a9;
}

#pay-bank {
    background: #3a4a4e; /* dark teal */
    color: #fff;
}

#pay-bank:hover {
    background: #2b3a3d;
}

/* Scrollbar Styling */
.products-panel,
#cart-items {
    scrollbar-width: thin;
    scrollbar-color: #7accc2 #e6f0ef;
}

.products-panel::-webkit-scrollbar,
#cart-items::-webkit-scrollbar {
    width: 8px;
}

.products-panel::-webkit-scrollbar-track,
#cart-items::-webkit-scrollbar-track {
    background: #e6f0ef; /* pale aqua */
    border-radius: 10px;
}

.products-panel::-webkit-scrollbar-thumb,
#cart-items::-webkit-scrollbar-thumb {
    background-color: #7accc2; /* seafoam */
    border-radius: 10px;
    border: 2px solid #e6f0ef;
}

.products-panel::-webkit-scrollbar-thumb:hover,
#cart-items::-webkit-scrollbar-thumb:hover {
    background-color: #5bb3a9;
}

.stock-info {
    font-size: 0.9em;
    color: #8a9b9b; /* muted teal */
    margin-top: 4px;
}