:root {
    --green: #167344;
    --green-dark: #105832;
    --green-light: #e8f7ef;
    --text: #172b25;
    --muted: #5e786b;
    --background: #f4f8f5;
    --border: var(--line);
}

body {
    background-color: var(--background);
    font-family: 'Source Sans 3', system-ui, -apple-system, sans-serif;
    color: var(--text);
    margin: 0;
    line-height: 1.6;
}

.navbar-main {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    box-shadow: none;
}

.navbar-brand img {
    height: 46px;
    width: auto;
    max-width: 230px;
    object-fit: contain;
}

.container-cart {
    max-width: 1100px;
    margin: 36px auto;
    padding: 0 16px;
}

.cart-card-item {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 22px;
    margin-bottom: 16px;
    box-shadow: none;
    transition: all 0.2s ease;
}

.cart-card-item:hover {
    border-color: var(--line);
    box-shadow: none;
}

.summary-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 26px;
    box-shadow: none;
    position: sticky;
    top: 24px;
}

.btn-green {
    background-color: var(--green);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-weight: 700;
    padding: 12px 20px;
    transition: all 0.2s ease;
}

.btn-green:hover {
    background-color: var(--green-dark);
    color: #ffffff;

    box-shadow: none;
}

.btn-outline-green {
    border: 1.5px solid var(--green);
    color: var(--green);
    background: transparent;
    border-radius: 4px;
    font-weight: 700;
    padding: 10px 18px;
    transition: all 0.2s ease;
}

.btn-outline-green:hover {
    background-color: var(--green);
    color: #ffffff;
}

.price-highlight {
    color: var(--green);
    font-size: 24px;
    font-weight: 850;
}

@media (max-width: 576px) {
    .navbar-brand img {
        height: 36px;
        max-width: 140px;
    }
    .navbar-main .btn {
        padding: 6px 10px !important;
        font-size: 13px !important;
    }
    .container-cart {
        margin: 20px auto;
        padding: 0 12px;
    }
    .cart-card-item {
        padding: 16px;
    }
    .summary-card {
        padding: 20px;
        position: static;
    }
}