@media (max-width: 900px) {
    .nav-menu select {
        width: 100vw !important;
        max-width: 98vw !important;
        font-size: 1.2em !important;
        margin: 0.5em 0 !important;
        padding: 0.7em 1.2em !important;
        border-radius: 8px !important;
        border: 2px solid #2ecc40 !important;
        background: #fff !important;
        color: #1a365d !important;
        font-weight: bold !important;
        display: block !important;
    }
}
/* Responsive Design for Mobile Devices */
@media (max-width: 900px) {
    .ai-hero-content h1 {
        font-size: 2.1rem;
    }
    .ai-hero-products {
        gap: 1rem;
    }
    .product-list {
        gap: 1rem;
        justify-content: center;
    }
    .product-card {
        width: 90vw;
        max-width: 340px;
        margin: 0 auto 1.5rem auto;
    }
    .ai-hero-products img {
        width: 120px;
        height: 120px;
    }
    .logo {
        height: 96px !important;
        max-width: 80vw;
    }
    .navbar .container {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    .nav-menu {
        flex-direction: column;
        gap: 0.7rem;
        width: 100%;
        align-items: center;
    }
    .nav-menu a, .checkout-navbar a {
        font-size: 1.1rem;
        padding: 0.7rem 1.2rem;
        display: block;
    }
    .cart-main .container, .checkout-section {
        padding: 1.2rem 0.5rem 1.5rem 0.5rem;
        max-width: 98vw;
    }
    .footer {
        font-size: 0.95rem;
        padding: 1.2rem 0 0.7rem 0;
    }
}

@media (max-width: 600px) {
    .ai-hero-content {
        padding: 1.5rem 0.2rem 1.2rem 0.2rem;
    }
    .ai-hero-content h1 {
        font-size: 1.3rem;
    }
    .ai-hero-sub {
        font-size: 1rem;
    }
    .logo {
        height: 56px !important;
        max-width: 90vw;
    }
    .product-card {
        padding: 0.7rem;
        width: 98vw;
        max-width: 98vw;
    }
    .product-card img {
        height: 80px;
    }
    .container {
        width: 99vw;
        max-width: 99vw;
        padding: 0 0.2rem;
    }
    .footer {
        font-size: 0.85rem;
        padding: 0.7rem 0 0.5rem 0;
    }
}
/* Modern AI Hero Section */
.ai-hero {
    width: 100vw;
    min-height: 60vh;
    position: relative;
    margin-bottom: 2.5rem;
    overflow: hidden;
}
.ai-hero-bg {
    width: 100vw;
    min-height: 60vh;
    background: linear-gradient(120deg, #e0eafc 0%, #cfdef3 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ai-hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.7);
    z-index: 1;
}
.ai-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100vw;
    padding: 3rem 1rem 2rem 1rem;
}
.ai-hero-content h1 {
    font-size: 3rem;
    font-weight: 900;
    color: #1a365d;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}
.ai-hero-sub {
    font-size: 1.3rem;
    color: #2d4a6a;
    margin-bottom: 2.5rem;
    font-weight: 500;
}
.ai-hero-products {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    max-width: 1200px;
}
.ai-hero-products img {
    border-radius: 18px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.13);
    background: #fff;
    width: 180px;
    height: 180px;
    object-fit: cover;
    transition: transform 0.2s, box-shadow 0.2s;
}
.ai-hero-products img:hover {
    transform: scale(1.08) rotate(-2deg);
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
}
/* Checkout page top menu styles */
.checkout-navbar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    background: #b6fcb6;
    padding: 1.2rem 0 1.2rem 0;
    border-radius: 0 0 12px 12px;
    margin-bottom: 2rem;
}
.checkout-navbar a {
    font-size: 1.25rem;
    font-weight: bold;
    color: #1a365d;
    text-decoration: none;
    padding: 0.5rem 1.5rem;
    border-radius: 6px;
    transition: background 0.2s;
}
.checkout-navbar a:hover {
    background: #e0ffe0;
}
/* Large product image preview on hover */
.product-card {
    position: relative;
}
.product-card .large-preview {
    display: none;
    position: absolute;
    top: 50%;
    left: 110%;
    transform: translateY(-50%);
    z-index: 10;
    background: #fff;
    border: 1px solid #ddd;
    box-shadow: 0 4px 24px rgba(0,0,0,0.18);
    border-radius: 10px;
    padding: 1rem;
    width: 350px;
    max-width: 90vw;
    max-height: 400px;
    text-align: center;
}
.product-card:hover .large-preview {
    display: block;
}
.large-preview img {
    width: 320px;
    max-width: 100%;
    height: auto;
    margin-bottom: 0.5rem;
}
/* Centering for cart and checkout pages */
.cart-main, .checkout-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
}

.cart-main .container, .checkout-section {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.07);
    padding: 2rem 2.5rem 2.5rem 2.5rem;
}

.checkout-section form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.checkout-section label {
    width: 100%;
    margin-bottom: 1rem;
    text-align: left;
}

.checkout-section input[type="text"],
.checkout-section input[type="email"] {
    width: 100%;
    padding: 0.5rem;
    margin-top: 0.3rem;
    border-radius: 4px;
    border: 1px solid #ccc;
    font-size: 1rem;
}
body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f7f9fa;
    color: #222;
}
.navbar {
    background: #1a365d;
    color: #fff;
    padding: 1rem 0;
}
.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    height: 288px; /* 48px * 6 = 288px */
    margin-right: 1rem;
    width: auto;
    max-width: 100%;
    display: block;
}
.site-title {
    font-size: 1.3rem;
    font-weight: bold;
}
.nav-menu {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin: 0 auto;
    padding: 0;
    justify-content: center;
    align-items: center;
}
@media (max-width: 900px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.7rem;
        width: 100%;
        align-items: center;
        margin: 0 auto;
        justify-content: center;
    }
}
.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
}
.nav-menu .cart-link {
    background: #2ecc40;
    color: #fff !important;
    border-radius: 6px;
    padding: 0.3rem 2.2em 0.3rem 1em;
    min-width: 90px;
    justify-content: flex-end;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.3em;
.nav-menu .cart-link {
    background: #2ecc40;
    color: #fff !important;
    border-radius: 6px !important;
    padding: 0.3rem 2.2em 0.3rem 1em !important;
    min-width: 90px;
    justify-content: flex-end;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.3em;
}
.hero {
    padding: 4rem 0 3rem 0;
    text-align: center;
}
.ai-kitchen-bg {
    background: linear-gradient(120deg, #e0eafc 0%, #cfdef3 100%), url('images/modern-kitchen-ai.jpg') center/cover no-repeat;
}
.btn-primary {
    background: #1a365d;
    color: #fff;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    margin-top: 1.5rem;
    display: inline-block;
}
.footer {
    background: #1a365d;
    color: #fff;
    text-align: center;
    padding: 1.5rem 0 1rem 0;
    margin-top: 3rem;
}
.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}
.product-list {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: flex-start;
}
.product-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    padding: 1.5rem;
    width: 260px;
    text-align: center;
}
.product-card img {
    max-width: 100%;
    height: 140px;
    object-fit: contain;
    margin-bottom: 1rem;
}
.price {
    color: #1a365d;
    font-weight: bold;
    font-size: 1.1rem;
}