:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --text-color: #1f2937;
    --text-light: #4b5563;
    --bg-color: #ffffff;
    --bg-light: #f9fafb;
    --border-color: #e5e7eb;
    --accent-green: #10b981;
    --accent-red: #ef4444;
}

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

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

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

.mt-80 {
    margin-top: 80px;
}

/* Header */
.site-header {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    margin-left: 20px;
    font-weight: 700;
    transition: color 0.3s;
}

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

.btn-nav {
    background-color: var(--primary-color);
    color: white !important;
    padding: 10px 20px;
    border-radius: 5px;
}

.btn-nav:hover {
    background-color: var(--primary-hover);
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 60px 0;
    background-color: var(--bg-color);
}

.main-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: #111827;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.banner-wrapper {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.banner-image {
    width: 100%;
    display: block;
}

/* Content Sections */
.content-section {
    padding: 80px 0;
}

.grey-bg {
    background-color: #f3f4f6;
}

.text-content {
    max-width: 800px;
    margin: 0 auto 50px auto;
}

.center-text {
    text-align: center;
}

.text-content h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: #111827;
    font-weight: 800;
}

.text-content p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-light);
}

/* Comparison Grid */
.comparison-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.product-card {
    background-color: var(--bg-color);
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    transition: transform 0.3s;
}

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

.product-img {
    height: 250px;
    object-fit: contain;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    font-weight: 800;
}

.feature-list {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
}

.feature-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 1.05rem;
    position: relative;
    padding-left: 30px;
}

.old-style li::before {
    content: "✕";
    position: absolute;
    left: 0;
    color: var(--accent-red);
    font-weight: bold;
}

.new-style li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-green);
    font-weight: bold;
}

.verdict {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-light);
    margin-top: 20px;
}

.winner {
    color: var(--accent-green);
    font-size: 1.4rem;
}

.highlighted-card {
    border: 2px solid var(--primary-color);
    box-shadow: 0 15px 30px rgba(37, 99, 235, 0.15);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 5px 20px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    margin-top: 20px;
    transition: background-color 0.3s;
    width: 100%;
}

.cta-button:hover {
    background-color: var(--primary-hover);
}

/* Pain Grid */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.pain-card {
    background-color: var(--bg-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
}

.pain-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
}

.percentage {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent-red);
    line-height: 1;
    margin-bottom: 10px;
}

.pain-text {
    font-size: 1.1rem;
    color: var(--text-color);
    font-weight: 600;
}

/* Science Features */
.science-features {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-box {
    flex: 1;
    min-width: 250px;
    background: var(--bg-color);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
}

.feature-box .icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-box h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.feature-box p {
    color: var(--text-light);
}

/* Testimonials */
.subtitle-text {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 50px;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: var(--bg-color);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border: 1px solid var(--border-color);
}

.reviewer-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 3px solid #e5e7eb;
}

.stars {
    color: #f59e0b;
    font-size: 1.5rem;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.review-content h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #111827;
    font-weight: 700;
}

.review-content p {
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.reviewer-name {
    font-weight: 800;
    color: #111827;
}

/* CTA Section */
.cta-section {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 80px 20px;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 800;
}

.cta-section p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px auto;
    opacity: 0.9;
}

.large-cta {
    background-color: white;
    color: var(--primary-color);
    padding: 20px 40px;
    font-size: 1.3rem;
    width: auto;
    display: inline-block;
}

.large-cta:hover {
    background-color: #f3f4f6;
}

/* Footer */
.site-footer {
    background-color: #111827;
    color: #9ca3af;
    text-align: center;
    padding: 40px 0;
}

.site-footer p {
    margin-bottom: 10px;
}

.disclaimer {
    font-size: 0.8rem;
    max-width: 800px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .site-header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn-nav {
        display: none;
    }
    
    .main-title {
        font-size: 2.2rem;
    }
    
    .science-features {
        flex-direction: column;
    }
}