body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #222;
    line-height: 1.6;
    background: #fff;
}

header {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 1.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo {
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

nav a {
    margin-left: 2rem;
    text-decoration: none;
    color: #222;
    font-weight: 500;
}

nav a:hover {
    color: #444;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 5%;
}

h1 {
    text-align: center;
    font-size: 2.6rem;
    margin-bottom: 3.5rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.product-card {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}

.product-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.product-card h2 {
    font-size: 1.45rem;
    margin: 0 0 1rem;
}

.highlight, highlight {
    display: block;
    background: #f9f9f9;
    padding: 1.2rem;
    border-left: 4px solid #222;
    margin: 1.5rem 0;
    font-style: italic;
    color: #444;
}

.btn {
    background: #222;
    color: #fff;
    padding: 0.85rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    transition: background 0.2s;
}

.btn:hover {
    background: #444;
}

.product-page {
    max-width: 820px;
    margin: 4rem auto;
    padding: 0 5%;
}

.product-page img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.about-section {
    margin-top: 2rem;
    padding-top: 4rem;
    border-top: 1px solid #eee;
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

footer {
    background: #f9f9f9;
    text-align: center;
    padding: 2.5rem 5%;
    color: #666;
    font-size: 0.9rem;
    margin-top: 5rem;
}

.showIfBig { display: inline-block; }
.showIfSmall { display: none; }
/* ────────────────────────────────────────
   Mobile adjustments
───────────────────────────────────────── */
@media (max-width: 768px) {
    header {
        padding: 1rem 6%;
    }

    .logo {
        font-size: 1.45rem;
    }

    main {
        padding-left: 6%;
        padding-right: 6%;
    }

    h1 {
        font-size: 2.1rem;
    }

    .product-grid {
        gap: 1.8rem;
    }

    .product-card {
        padding: 1.2rem;
    }

    .product-page {
        padding-left: 6%;
        padding-right: 6%;
        margin: 2.5rem auto;
    }

    nav a {
        margin-left: 1.2rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .showIfBig { display: none; }
    .showIfSmall { display: inline-block; }
    .logo {
        font-size: 1.3rem;
    }

    h1 {
        font-size: 1.4rem;
    }

    nav a {
        margin-left: 0.9rem;
        font-size: 0.9rem;
    }
}