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

body {
    font-family: 'Poppins', sans-serif;
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem 1rem;
}

h1, h2 {
    font-family: 'Montserrat', sans-serif;
}

.card {
    display: grid;
    grid-template-columns: 1fr;
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    max-width: 700px;
    width: 100%;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card_intro {
    background-color: #2bb3b1;
    color: white;
    text-align: center;
    padding: 2rem;
}

.intro_title {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.intro_subtitle {
    font-weight: bold;
    margin-bottom: 1rem;
}

.intro_text {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
}

.card_pricing {
    background-color: #4abebd;
    color: white;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.pricing_title {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.pricing_price {
    font-size: 2rem;
    margin: 0.5rem 0;
}

.price_amount {
    font-weight: bold;
}

.price_period {
    font-size: 1rem;
    opacity: 0.8;
}

.pricing_text {
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.btn {
    background-color: #bfdf32;
    color: #333;
    padding: 1rem 0;
    width: 100%;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.btn:hover {
    background-color: #a5c51b;
    transform: scale(1.02);
}

.card_features {
    background-color: #e0e8ff;
    padding: 2rem;
}

.features_title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.features_list {
    list-style: none;
}

.features_list li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: #4b4b4b;
    position: relative;
    padding-left: 1.2rem;
}

.features_list li::before {
    content: '✓';
    color: #2bb3b1;
    position: absolute;
    left: 0;
}

@media (min-width: 768px) {
    .card {
        grid-template-columns: 1fr 1fr;
    }

    .card_intro {
        grid-column: span 2;
    }

    .card_pricing, .card_features {
        padding: 2rem 2.5rem;
    }

    .btn {
        width: auto;
        padding: 1rem 2rem;
    }
}