/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;900&display=swap');

:root {
    --primary-color: #00A0B2;
    --primary-dark: #007f8e;
    --accent-color: #ff9900;
    --accent-hover: #e68a00;
    --text-color: #333;
    --bg-light: #f9f9f9;
    --bg-white: #ffffff;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.cta-btn {
    background: var(--accent-color);
    color: white;
    padding: 12px 25px;
    border-radius: 50px;
    font-weight: 700;
    text-transform: uppercase;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    display: inline-block;
    border: none;
    cursor: pointer;
}

.cta-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #eef2f3 0%, #ffffff 100%);
    padding: 60px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.hero .highlight {
    color: var(--primary-color);
}

.hero p.subheadline {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.video-container {
    max-width: 1000px;
    margin: 0 auto 40px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: #000;
    position: relative;
    /* Removed fixed aspect ratio to respect video's native dimensions */
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
}

/* Problem Section */
.problem-section {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    color: var(--primary-dark);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.problem-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid #eee;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.problem-card img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 20px;
    object-fit: cover;
    border: 4px solid var(--primary-color);
}

.problem-card h3 {
    margin-bottom: 15px;
    color: var(--primary-dark);
}

/* Solution Section/Ingredients */
.ingredients-section {
    padding: 80px 0;
    background: #f0f8ff;
}

.ingredients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.ingredient-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.ingredient-card img {
    height: 120px;
    margin-bottom: 20px;
}

.ingredient-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* Product Showcase */
.product-showcase {
    padding: 80px 0;
    background: white;
    text-align: center;
}

.product-showcase img {
    max-width: 300px;
    margin: 0 auto 30px;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
}

/* Pricing Section */
.pricing-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f0f8ff 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    justify-content: center;
}

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.pricing-card.bestseller {
    border-color: var(--accent-color);
    transform: scale(1.05);
    z-index: 10;
}

.tag-bestseller {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.price {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-color);
    margin: 20px 0;
    line-height: 1.2;
}

.price small {
    font-size: 1rem;
    color: #999;
    font-weight: 400;
    display: block;
    margin-top: 5px;
}

.price-details {
    margin-bottom: 25px;
    color: #666;
    font-size: 0.95rem;
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 15px;
    background: #28a745;
    color: white;
    font-weight: bold;
    border-radius: 10px;
    font-size: 1.1rem;
    transition: var(--transition);
}

.pricing-btn:hover {
    background: #218838;
}

/* FAQ */
.faq-section {
    padding: 80px 0;
    background: white;
}

.faq-item {
    border-bottom: 1px solid #eee;
    padding: 20px 0;
}

.faq-question {
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-color);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: #666;
    margin-top: 10px;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-item.active .faq-question::after {
    content: '-';
}

/* Footer */
footer {
    background: #333;
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: #aaa;
    margin: 0 10px;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: white;
}

.copyright {
    color: #666;
    font-size: 0.8rem;
}

/* Evolution Section Styles */
.evolution-item {
    background: white;
    box-shadow: var(--shadow-sm);
    padding: 10px;
    border-radius: 10px;
    transition: var(--transition);
}

.evolution-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* Science Section Styles */
.science-content {
    background: white;
}

/* Testimonials / Video Grid Styles */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 */
    height: 0;
    overflow: hidden;
    background: #000;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Responsive */
@media (max-width: 768px) {
    .pricing-card.bestseller {
        transform: scale(1);
    }

    .nav-links {
        display: none;
        /* Simple mobile hide for now */
    }

    .hero h1 {
        font-size: 1.8rem;
    }
}