/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: var(--bg-light);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Consistent design system */
:root {
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;

    /* Background colors */
    --bg-light: #f8fafc;
    --bg-white: white;
    --bg-gradient-brand: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-dark: #2d3748;
}

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

/* Hero Section */
.hero {
    background: var(--bg-gradient-brand);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="white" opacity="0.1"><path d="M0,50 Q250,0 500,50 T1000,50 L1000,100 L0,100 Z"/></svg>') repeat-x;
    background-size: 1000px 100px;
    background-position: bottom;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.extension-icon {
    margin-bottom: 40px;
    display: inline-block;
    position: relative;
}

.extension-icon img {
    width: 120px;
    height: 120px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    padding: 12px 14px;
}

.extension-icon:hover img {
    transform: scale(1.05);
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 24px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.3rem;
    margin-bottom: 50px;
    opacity: 0.9;
    font-weight: 300;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    padding: 18px 36px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-width: 180px;
    text-align: center;
    border: 2px solid transparent;
}

.cta-button.primary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.cta-button.primary:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.cta-button.primary:active {
    transform: translateY(0);
}

.cta-button.secondary {
    background: white;
    color: #667eea;
    border-color: white;
}

.cta-button.secondary:hover {
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.cta-button.secondary:active {
    transform: translateY(0);
}

.cta-button:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Mobile Warning */
.mobile-warning {
    display: none;
    background: rgba(255, 193, 7, 0.15);
    color: #fff;
    padding: 20px 24px;
    border-radius: 12px;
    margin: 20px 0;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.mobile-warning p {
    margin: 0;
    font-weight: 500;
    font-size: 1rem;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-light);
}

.features h2 {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 60px;
}

.feature-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 40px;
    justify-content: center;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    flex: 0 0 300px;
    max-width: 300px;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--bg-gradient-brand);
    border-radius: 16px 16px 0 0;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 24px;
    display: block;
}

.feature-card h3 {
    color: #2d3748;
    margin-bottom: 20px;
    font-size: 1.4rem;
    font-weight: 600;
}

.feature-card p {
    color: #718096;
    line-height: 1.7;
    font-size: 1.05rem;
}



/* How it works section */
.how-it-works {
    padding: 100px 0;
    background: var(--bg-light);
}

.how-it-works h2 {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 60px;
}

.steps {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 40px;
    justify-content: center;
}

.step {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    position: relative;
    transition: all 0.3s ease;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
    flex: 0 0 280px;
    max-width: 280px;
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--bg-gradient-brand);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.3rem;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.step h3 {
    color: #2d3748;
    margin: 30px 0 20px 0;
    font-size: 1.4rem;
    font-weight: 600;
}

.step p {
    color: #718096;
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Testimonials */
.testimonials {
    background: var(--bg-light);
    padding: 100px 40px;
    text-align: center;
}

.testimonials h2 {
    font-size: 3rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 60px;
}

.testimonial-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    justify-content: center;
}

.testimonial {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.05);
    flex: 0 0 350px;
    max-width: 350px;
}

.testimonial::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 4rem;
    color: #667eea;
    opacity: 0.3;
    font-family: serif;
}

.testimonial:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.quote {
    font-style: italic;
    color: #4a5568;
    margin-bottom: 24px;
    font-size: 1.1rem;
    line-height: 1.7;
    padding-left: 20px;
}

.author {
    color: #667eea;
    font-weight: 600;
    font-size: 1rem;
}

/* CTA Section */
.cta-section {
    background: var(--bg-gradient-brand);
    color: white;
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="white" opacity="0.05"><path d="M0,50 Q250,100 500,50 T1000,50 L1000,0 L0,0 Z"/></svg>') repeat-x;
    background-size: 1000px 100px;
    background-position: top;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button.large {
    padding: 24px 48px;
    font-size: 1.2rem;
    font-weight: 700;
}

.guarantee {
    margin-top: 30px !important;
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* Footer */
footer {
    background: var(--bg-dark);
    color: #a0aec0;
    text-align: center;
    padding: 60px 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.footer-content p {
    margin: 0;
    font-size: 1rem;
}

.footer-content a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.2s ease;
    font-weight: 500;
}

.footer-content a:hover {
    color: #764ba2;
}

/* Responsive design */
@media (max-width: 1024px) and (min-width: 769px) {
    .container {
        padding: 0 30px;
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .hero {
        padding: 80px 0 60px;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }

    .subtitle {
        font-size: 1.1rem;
    }

    .cta-buttons {
        display: none;
    }

    .mobile-warning {
        display: block;
    }

    .cta-button.primary.large {
        display: none;
    }

    .features {
        padding: 80px 0;
    }

    .features h2 {
        font-size: 2.5rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }



    .how-it-works {
        padding: 80px 0;
    }

    .how-it-works h2 {
        font-size: 2.5rem;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .testimonials {
        padding: 80px 20px;
    }

    .testimonials h2 {
        font-size: 2.5rem;
    }

    .testimonial-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .cta-section {
        padding: 80px 0;
    }

    .cta-content h2 {
        font-size: 2.5rem;
    }

    .extension-icon img {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.2rem;
    }

    .features h2,
    .how-it-works h2,
    .testimonials h2,
    .cta-content h2 {
        font-size: 2rem;
    }


}