:root {
    --bg-color: #050505;
    --text-color: #f0f0f0;
    --accent-color: #e5ff00; /* Neon yellow accent */
    --nav-bg: rgba(5, 5, 5, 0.5);
}

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

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

/* Typography */
h1 {
    font-size: clamp(4rem, 8vw, 8rem);
    font-weight: 800;
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: -2px;
}

h2 {
    font-size: clamp(2.5rem, 5vw, 5rem);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 1rem;
    line-height: 1.1;
}

p {
    font-size: 1.2rem;
    font-weight: 300;
    color: #a0a0a0;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}

.neon-arrow {
    color: var(--accent-color);
    font-size: 2rem;
    font-weight: 800;
    text-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color);
    animation: bounce 2s infinite;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

.buy-btn {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--text-color);
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.buy-btn:hover {
    background: var(--text-color);
    color: var(--bg-color);
}

.buy-btn.large {
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
    margin-top: 2rem;
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
}

.buy-btn.large:hover {
    box-shadow: 0 0 20px rgba(229, 255, 0, 0.4);
    transform: translateY(-2px);
}

/* Hero Scroll Section */
.hero-scroll-container {
    position: relative;
    width: 100%;
    height: 300vh; /* Scroll area */
}

.sticky-video-container {
    position: sticky;
    top: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background: #000;
}

#hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

/* Text Overlays */
.overlay-text {
    position: absolute;
    top: 50%;
    left: 8%;
    transform: translateY(-50%);
    z-index: 10;
    width: 90%;
    max-width: 800px;
    opacity: 0;
    /* JS handles the smooth fade, we use CSS transition for smoother interpolation between frames */
    transition: opacity 0.1s ease-out; 
    pointer-events: none; /* Let clicks pass through to video if needed */
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
}

/* Product Details Section */
.product-details-section {
    position: relative;
    z-index: 20;
    background: var(--bg-color);
    padding: 8rem 5%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-container {
    max-width: 800px;
    width: 100%;
    text-align: center;
}

.product-info {
    margin-bottom: 5rem;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.product-title {
    font-size: clamp(2rem, 4vw, 4rem);
    color: var(--text-color);
    letter-spacing: 2px;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

.product-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    text-shadow: 0 0 10px rgba(229, 255, 0, 0.3);
}

.product-description {
    font-size: 1.2rem;
    color: #b0b0b0;
    max-width: 600px;
    margin: 0 auto;
}

/* Survey Section */
.survey-section {
    padding: 3rem;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(229, 255, 0, 0.2);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.survey-section h3 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.survey-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
}

.survey-btn {
    background: transparent;
    color: var(--text-color);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem;
    border-radius: 10px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.survey-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.survey-btn.primary-btn {
    background: rgba(229, 255, 0, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
    font-weight: 600;
    box-shadow: 0 0 15px rgba(229, 255, 0, 0.1);
}

.survey-btn.primary-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 0 25px rgba(229, 255, 0, 0.4);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: #111;
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--accent-color);
    text-align: center;
    max-width: 400px;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    box-shadow: 0 10px 40px rgba(0,0,0,0.8), 0 0 20px rgba(229, 255, 0, 0.1);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-content p {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.close-modal-btn {
    background: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    padding: 0.5rem 2rem;
    border-radius: 30px;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-modal-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
}

footer {
    text-align: center;
    padding: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.8rem;
    color: #666;
}