body {
    background-color: turquoise;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
    overflow-x: hidden;
}

h1 {
    color: #008;
    font-size: clamp(1.5rem, 5vw, 2rem);
    font-weight: 600;
    text-align: center;
    margin: 2rem 1rem;
}

h2 {
    color: #008;
    font-size: clamp(1.2rem, 4vw, 1.5rem);
    font-weight: 600;
    margin: 1rem;
}

p {
    color: #008;
    font-size: clamp(1rem, 3vw, 1.2rem);
    text-align: center;
    margin: 1rem;
    padding: 0 1rem;
}

a {
    color: #008;
}

header {
    background-color: transparent;
    color: #008;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin: 0 auto;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

nav img {
    width: min(200px, 40vw);
    height: auto;
}

nav button {
    background-color: #008;
    color: #fff;
    padding: clamp(0.5rem, 2vw, 1rem);
    border: none;
    border-radius: 5px;
    margin-left: auto;
    cursor: pointer;
    font-size: clamp(0.875rem, 2vw, 1rem);
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    transition: all 0.3s ease;
    width: min(150px, 40vw);
    height: auto;
    min-height: 40px;
}

nav button:hover {
    background-color: #005564;
    color: #fff;
    transform: scale(1.05);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    border: 2px solid #fff;
}

section {
    background-color: transparent;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

/* Opt-In Bar */
.opt-in-bar {
    background-color: #000;
    width: 100%;
    padding: clamp(1rem, 3vw, 2rem) 0;
}

.opt-in-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.opt-in-container h2 {
    color: #fff;
    font-size: clamp(1.2rem, 4vw, 1.5rem);
    font-weight: 600;
    margin: 1rem;
}

.opt-in-text {
    color: #fff;
    font-size: clamp(1rem, 3vw, 1.2rem);
    font-weight: 600;
    flex: 1;
    min-width: 280px;
    text-align: left;
}

.opt-in-button {
    background-color: #008;
    color: #fff;
    padding: clamp(0.5rem, 2vw, 1rem);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: clamp(0.875rem, 2vw, 1rem);
    font-weight: 600;
    align-self: center;
    text-align: center;
    text-transform: uppercase;
    transition: all 0.3s ease;
    width: min(150px, 40vw);
    height: auto;
    min-height: 40px;
}

.opt-in-button:hover {
    background-color: #005564;
    color: #fff;
    transform: scale(1.05);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    border: 2px solid #fff;
}

/* Product Section */

.product-section {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.product-container {
    display: flex;
    gap: 2rem;
    justify-content: center;
    align-items: stretch;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .product-container {
        flex-direction: column;
        align-items: center;
    }
}

.product-card {
    flex: 1;
    width: calc(33.33% - 1.33rem);
    max-width: 350px;
    padding: 2rem;
    border: 1px solid #ddd;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.product-card.highlighted {
    background-color: #008;
    color: #fff;
    border: none;
    transform: scale(1.05);
}

.product-card h2 {
    background-color: #fff;
    color: #008;
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin: 0;
}

.product-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin: 0;
}

.product-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    margin: 0;
}

.product-card .price {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin: 0;
}

.product-card .feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

.product-card .feature-list li {
    padding: 0.5rem 0;
    text-align: center;
    border-bottom: 1px solid rgba(221, 221, 221, 0.3);
}

.product-card .feature-list li:last-child {
    border-bottom: none;
}

.product-card.highlighted .feature-list li {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}