html {font-size: 14px;}
@media (min-width: 768px) {
  html {font-size: 16px;}
}
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}
html {
  position: relative;
  min-height: 100%;
}
body {
    background: linear-gradient(to bottom, #f8f9fb, #eef2f7);
    min-height: 100vh;
}
.payment-options {
    justify-content: center; 
    align-items: center;
}
#paypal-button-container {min-width: 300px; }
.btn-vnpay {
    width: 300px; 
    height: 45px; 
    font-size: 16px;
    font-weight: bold;
    border-radius: 5px;
    background-color: #28a745; 
    color: #fff;
    border: none;
    cursor: pointer;
}
    .btn-vnpay:hover {background-color: #218838;}
footer.footer {position: static !important; }
main .container {padding-bottom: 2rem;}
footer .form-control {max-width: 250px;}
footer form {flex-wrap: wrap;}
.card {
    background: #fff;
    border: none;
    border-radius: 15px;
    box-shadow: 0 6px 20px rgba(0,0,0,.08);
    transition: .3s;
}
    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 30px rgba(0,0,0,.15);
    }
.btn-primary {border-radius: 30px;}
.btn-warning {border-radius: 30px;}
h2 {
    color: #0d6efd;
    font-weight: bold;
}
section {
    margin-top: 60px;
    margin-bottom: 60px;
}
.section-title {
    font-size: 32px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 40px;
    color: #222;
}
.navbar {background: #111827;}
footer {
    background: #1f2937;
    color: white;
    padding: 40px 0;
}
.hero-banner {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,.15);
}
body {
    background: #f5f7fb !important;
    font-family: 'Segoe UI', Arial, sans-serif;
}
.container {background: transparent;}
.card {
    background: white;
    border-radius: 15px;
    border: none;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all .3s ease;
}
    .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    }
.new-product-banner {
    background: linear-gradient(135deg, #fff3cd, #ffc107);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}
    .new-product-banner h2 {
        color: #b88600;
        font-weight: bold;
    }
    .new-product-banner h3 {
        color: #212529;
        font-weight: bold;
    }
    .new-product-banner img {
        border-radius: 15px;
        transition: 0.3s;
    }
        .new-product-banner img:hover {
            transform: scale(1.08);
        }
.category-card {
    border-radius: 18px;
    transition: all 0.25s ease;
    cursor: pointer;
    min-height: 120px;
}
    .category-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18) !important;
        border: 1px solid #0d6efd !important;
    }
        .category-card:hover h5 {color: #0d6efd;}
.category-icon {
    font-size: 32px;
    line-height: 1;
}
.navbar .btn-warning {
    color: #000 !important;
    border: none;
    transition: all 0.2s ease-in-out;
}
    .navbar .btn-warning:hover {
        background-color: #ffca2c;
        transform: translateY(-1px);
    }
.navbar .btn-outline-light:hover {
    color: #0d6efd !important;
    background-color: #ffffff;
}