:root {
    --primary-gradient: linear-gradient(45deg, #4b0082, #8a2be2);
    --secondary-gradient: linear-gradient(45deg, #ff1493, #ff007f);
    --text-color: #e0e0e0;
    --light-text-color: #fff;
    --background-color: #1a1a2e;
    --card-background: #2a2a4a;
    --button-color: #8a2be2;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.header {
    text-align: center;
    padding: 6rem 1rem;
    background: var(--primary-gradient);
    color: var(--light-text-color);
    position: relative;
    overflow: hidden;
}

.header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin: 0;
    text-shadow: 0 0 15px rgba(255,255,255,0.4);
}

.headline-container {
    padding: 3rem 1rem;
    text-align: center;
    background-color: var(--background-color);
}

h1.main-headline {
    font-size: 4.5rem;
    background: -webkit-linear-gradient(45deg, #00c6ff, #9932cc, #ff1493);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
    margin-bottom: 2.5rem;
    text-shadow: 0 0 20px rgba(138,43,226,0.7);
    letter-spacing: -0.05em;
    line-height: 1.1;
}

.section {
    padding: 5rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.5), 0 0 30px var(--secondary-gradient);
    border: 1px solid rgba(255,255,255,0.1);
}

.carousel-btn {
    position: absolute;
    top: 0;
    height: 100%;
    width: 50px; /* Narrow button width */
    background: rgba(0, 0, 0, 0.2); /* Semi-transparent background */
    color: white;
    font-size: 2.5rem;
    border: none;
    cursor: pointer;
    z-index: 10;
    opacity: 0.5; /* Blended appearance */
    transition: opacity 0.3s ease, background 0.3s ease;
}

.carousel-btn:hover {
    opacity: 1; /* Fully visible on hover */
    background: rgba(0, 0, 0, 0.4);
}

.prev-btn {
    left: 0;
    border-radius: 20px 0 0 20px;
}

.next-btn {
    right: 0;
    border-radius: 0 20px 20px 0;
}

.carousel {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.carousel-item {
    min-width: 100%;
    box-sizing: border-box;
    background: var(--card-background);
    padding: 3rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-radius: 20px;
}

.product-image {
    width: 100%;
    max-width: 350px;
    height: auto;
    border-radius: 15px;
    margin-bottom: 2rem;
    object-fit: contain;
    box-shadow: 0 8px 25px rgba(0,0,0,0.6);
    border: 2px solid rgba(138,43,226,0.3);
}

.product-description {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--text-color);
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

.cta-button {
    display: inline-block;
    background: var(--secondary-gradient);
    color: var(--light-text-color);
    padding: 1rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 6px 20px rgba(255,20,147,0.5), 0 0 25px rgba(255,20,147,0.7);
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55), box-shadow 0.4s ease;
    letter-spacing: 0.05em;
}

.cta-button:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 10px 30px rgba(255,20,147,0.7), 0 0 35px rgba(255,20,147,0.9);
}

.description-section {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.description-section h2 {
    font-size: 3rem;
    background: -webkit-linear-gradient(45deg, #00c6ff, #9932cc, #ff007f);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 0 10px rgba(0,200,255,0.5);
    line-height: 1.2;
}

.description-section p {
    font-size: 1.25rem;
    font-weight: 400;
    color: #b0b0d0;
    text-shadow: 0 1px 2px rgba(0,0,0,0.7);
}

.footer {
    background: linear-gradient(135deg, #120030, #2a0050, #4b0082);
    color: var(--light-text-color);
    text-align: center;
    padding: 5rem 1rem;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.5);
}

.footer h3 {
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
    font-weight: 800;
    text-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.footer p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    color: #d0d0f0;
}

.subscription-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    max-width: 550px;
    margin: 0 auto;
}

.subscription-form input {
    width: 100%;
    padding: 1rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    background-color: rgba(255,255,255,0.1);
    color: var(--light-text-color);
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.2);
}

.subscription-form input::placeholder {
    color: rgba(255,255,255,0.6);
}

.subscription-form button {
    background: var(--secondary-gradient);
    color: var(--light-text-color);
    border: none;
    padding: 1rem 3.5rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(255,20,147,0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    letter-spacing: 0.08em;
}

.subscription-form button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255,20,147,0.7);
}

@media (min-width: 768px) {
    h1.main-headline {
        font-size: 5.5rem;
    }

    .carousel-item {
        flex-direction: row;
        text-align: left;
        gap: 3rem;
        align-items: center;
    }

    .product-image {
        max-width: 450px;
        margin-bottom: 0;
    }

    .product-content {
        flex: 1;
    }

    .description-section h2 {
        font-size: 3.5rem;
    }
}