:root {
    --primary: #FF6B35;
    --primary-dark: #E85A2C;
    --secondary: #52B788;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --background: #FFFFFF;
    --surface: #F8F9FA;
    --border: #E5E7EB;
    --shadow: rgba(0, 0, 0, 0.1);
    --success: #52B788;
    --max-width: 1200px;
    --radius: 12px;
    --radius-small: 8px;
    --radius-large: 16px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
    text-align: center;
    justify-content: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 12px 0;
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 56px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: white;
    box-shadow: -4px 0 24px var(--shadow);
    transition: right 0.3s ease;
    padding: 80px 24px 24px;
    z-index: 999;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu ul {
    list-style: none;
}

.mobile-menu li {
    margin-bottom: 24px;
}

.mobile-menu a {
    font-size: 1.125rem;
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #FFF5F1 0%, #FFFFFF 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.5;
}

.hero-cta {
    margin-bottom: 24px;
}

.hero-note {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 12px;
}

.phone-mockup {
    position: relative;
    max-width: 380px;
    margin: 0 auto;
    padding: 12px;
    background: #1a1a1a;
    border-radius: 48px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 24px;
    background: #1a1a1a;
    border-radius: 24px;
    z-index: 1;
}

.phone-mockup::after {
    content: '';
    position: absolute;
    top: 32px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 6px;
    background: #333;
    border-radius: 3px;
    z-index: 2;
}

.phone-mockup img {
    border-radius: 36px;
    width: 100%;
    height: auto;
    display: block;
}

/* Social Proof Bar */
.social-proof-bar {
    background: var(--surface);
    padding: 32px 0;
    border-bottom: 1px solid var(--border);
}

.proof-items {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 32px;
}

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

.proof-item strong {
    display: block;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 4px;
}

.proof-item span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Sections */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

/* Features */
.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--surface);
    padding: 32px;
    border-radius: var(--radius-large);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px var(--shadow);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.5;
}

/* How It Works */
.how-it-works {
    padding: 80px 0;
    background: var(--surface);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 48px;
    margin-bottom: 60px;
}

.step {
    display: flex;
    gap: 20px;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.step-content h3 {
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-secondary);
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.app-showcase {
    text-align: center;
    max-width: 380px;
    margin: 0 auto;
    position: relative;
    padding: 12px;
    background: #1a1a1a;
    border-radius: 48px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.app-showcase::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 24px;
    background: #1a1a1a;
    border-radius: 24px;
    z-index: 1;
}

.app-showcase::after {
    content: '';
    position: absolute;
    top: 32px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 6px;
    background: #333;
    border-radius: 3px;
    z-index: 2;
}

.app-showcase img {
    border-radius: 36px;
    width: 100%;
    height: auto;
    display: block;
}

/* Workout Section */
.workouts {
    padding: 80px 0;
    background: linear-gradient(135deg, #FFF9F5 0%, #FFFFFF 100%);
}

.workout-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.workout-content h3 {
    font-size: 2rem;
    margin-bottom: 24px;
}

.workout-list {
    list-style: none;
    margin-bottom: 24px;
}

.workout-list li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.workout-list li:last-child {
    border-bottom: none;
}

.workout-list strong {
    color: var(--primary);
    display: inline-block;
    margin-right: 8px;
}

.workout-note {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 20px;
    background: var(--surface);
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
}

/* Mindfulness Section */
.mindfulness {
    padding: 80px 0;
    background: var(--surface);
}

.mindfulness-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.mindfulness-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.mindfulness-feature {
    display: flex;
    gap: 20px;
    align-items: start;
}

.mindfulness-feature .feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.mindfulness-feature h4 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.mindfulness-feature p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.breathing-showcase {
    background: white;
    padding: 24px;
    border-radius: var(--radius-large);
    box-shadow: 0 4px 16px var(--shadow);
}

.breathing-showcase h4 {
    font-size: 1.125rem;
    margin-bottom: 16px;
    color: var(--primary);
}

.breathing-demo {
    max-width: 300px;
    margin: 0 auto;
}

.breathing-demo img {
    width: 100%;
    border-radius: var(--radius);
}

/* Nutrition Insights */
.nutrition-insights {
    padding: 80px 0;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
}

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

.insight-card h3 {
    margin: 24px 0 12px;
    font-size: 1.5rem;
}

.insight-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.phone-mockup.compact {
    max-width: 280px;
    padding: 8px;
}

.phone-mockup.compact::before {
    top: 16px;
    height: 20px;
}

.phone-mockup.compact::after {
    top: 22px;
    width: 60px;
    height: 4px;
}

.phone-mockup.compact img {
    border-radius: 28px;
}

/* Testimonials */
.testimonials {
    padding: 80px 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.testimonial {
    background: var(--surface);
    padding: 32px;
    border-radius: var(--radius-large);
}

.stars {
    color: #FFB800;
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.testimonial p {
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.testimonial-author strong {
    display: block;
    margin-bottom: 4px;
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Pricing */
.pricing {
    padding: 80px 0;
    background: var(--surface);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    max-width: 700px;
    margin: 0 auto 48px;
}

.pricing-card {
    background: white;
    padding: 40px;
    border-radius: var(--radius-large);
    border: 2px solid var(--border);
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.08);
}

.badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--primary);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin: 24px 0;
}

.currency {
    font-size: 1.5rem;
    margin-right: 4px;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
}

.period {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-left: 4px;
}

.price-note {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.875rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 8px 0;
    color: var(--text-secondary);
}

.pricing-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* FAQ */
.faq {
    padding: 80px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--surface);
    margin-bottom: 16px;
    border-radius: var(--radius);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    font-weight: 500;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary);
    transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    padding: 0 24px 20px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #FFF5F1 0%, #FFFFFF 100%);
    text-align: center;
}

.cta h2 {
    margin-bottom: 16px;
}

.cta p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-note {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 16px;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 16px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 12px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-text {
        order: 2;
    }
    
    .hero-image {
        order: 1;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .workout-features {
        grid-template-columns: 1fr;
    }
    
    .workout-content {
        order: 2;
    }
    
    .workout-image {
        order: 1;
    }
    
    .workout-content h3 {
        font-size: 1.5rem;
    }
    
    .mindfulness-grid {
        grid-template-columns: 1fr;
    }
    
    .mindfulness-image {
        order: 1;
    }
    
    .mindfulness-content {
        order: 2;
    }
    
    .showcase-grid {
        grid-template-columns: 1fr;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .phone-mockup,
    .app-showcase {
        max-width: 280px;
    }
    
    .proof-items {
        grid-template-columns: 1fr 1fr;
    }
}