* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #f5f9ff;
    color: #1d3557;
}

a {
    text-decoration: none;
}

.header {
    min-height: 90px;
    padding: 10px 6%;

    display: flex;
    align-items: center;
    justify-content: space-between;

    background: white;

    box-shadow: 0 3px 20px rgba(0,0,0,0.08);

    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

nav {
    display: flex;
    gap: 28px;
}

nav a {
    color: #003d8f;
    font-weight: 600;
}

nav a:hover,
nav a.active {
    color: #11c5d8;
}

.auth {
    display: flex;
    gap: 10px;
}

.login,
.register {
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: bold;
}

.login {
    border: 2px solid #003d8f;
    color: #003d8f;
}

.register {
    background: #003d8f;
    color: white;
}


/* PAGE BANNER */

.page-banner {
    padding: 90px 6%;
    text-align: center;

    background: linear-gradient(
        120deg,
        #003d8f,
        #11c5d8
    );

    color: white;
}

.page-banner > p:first-child {
    letter-spacing: 3px;
    font-size: 13px;
}

.page-banner h1 {
    font-size: 55px;
    margin: 15px 0;
}

.page-banner h1 span {
    color: #bffaff;
}

.page-banner p:last-child {
    font-size: 17px;
}


/* PRODUCTS */

.products {
    padding: 80px 7%;

    display: grid;

    grid-template-columns: repeat(2,1fr);

    gap: 30px;
}

.product-card {
    overflow: hidden;

    background: white;

    border-radius: 20px;

    box-shadow: 0 8px 25px rgba(0,0,0,0.08);

    transition: 0.3s;
}

.product-card:hover {
    transform: translateY(-8px);
}

.product-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.product-info {
    padding: 30px;
}

.product-info span {
    color: #0088ff;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 2px;
}

.product-info h2 {
    color: #003d8f;
    margin: 10px 0;
}

.product-info p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-info a {
    color: #0088ff;
    font-weight: bold;
}


/* FOOTER */

.footer {
    padding: 30px;
    text-align: center;
    background: #071f45;
    color: white;
}


@media(max-width:800px) {

    .header {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .products {
        grid-template-columns: 1fr;
    }
}

@media(max-width:500px) {

    .page-banner h1 {
        font-size: 40px;
    }

    .product-card img {
        height: 220px;
    }
}