/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #FF8C42;
    --color-primary-dark: #FF6B1A;
    --color-secondary: #7FB069;
    --color-background: #ffffff;
    --color-foreground: #0a0a0a;
    --color-muted: #6b7280;
    --color-border: #e5e7eb;
    --color-secondary-bg: #f9fafb;
    --max-width: 1280px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-foreground);
    background: var(--color-background);
}

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

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

/* Header & Navigation */
.header {
    padding: var(--spacing-md) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    height: 3rem;
    width: auto;
}

.nav-links {
    display: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--color-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--color-foreground);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.language-switcher {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    background: transparent;
    cursor: pointer;
    font-size: 0.875rem;
}

.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border: none;
    background: transparent;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(to bottom, var(--color-background), rgba(127, 176, 105, 0.05));
    overflow: hidden;
    position: relative;
}

.hero-content {
    padding: var(--spacing-lg) 0 var(--spacing-xl);
}

.hero-grid {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-heading-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.hero-heading {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(to right, var(--color-primary), var(--color-primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-muted);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 140, 66, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-foreground);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-full {
    width: 100%;
}

.trust-indicators {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-muted);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.avatars {
    display: flex;
    margin-left: -0.5rem;
}

.avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    border: 2px solid var(--color-background);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    margin-left: -0.5rem;
}

.stars {
    display: flex;
    gap: 0.125rem;
}

.star {
    color: var(--color-primary);
    font-size: 1.25rem;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.app-mockup {
    position: relative;
    z-index: 10;
    max-width: 400px;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

.blur-circle {
    position: absolute;
    width: 18rem;
    height: 18rem;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
    pointer-events: none;
}

.blur-orange {
    background: rgba(255, 140, 66, 0.15);
    top: 2rem;
    right: -2rem;
}

.blur-green {
    background: rgba(127, 176, 105, 0.15);
    bottom: 2rem;
    left: -2rem;
}

/* Social Proof Section */
.social-proof-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-secondary-bg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-md);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-muted);
}

/* Features Section */
.features-section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-muted);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.feature-card {
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    background: var(--color-background);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(255, 140, 66, 0.1);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-muted);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works-section {
    padding: var(--spacing-2xl) 0;
    background: var(--color-secondary-bg);
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.step-card {
    position: relative;
    padding: var(--spacing-lg);
    background: var(--color-background);
    border-radius: 1rem;
    border: 1px solid var(--color-border);
}

.step-number {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.5rem;
}

.step-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.75rem;
    margin-bottom: var(--spacing-md);
}

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.step-description {
    color: var(--color-muted);
}

/* Pricing Section */
.pricing-section {
    padding: var(--spacing-2xl) 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.pricing-card {
    position: relative;
    padding: var(--spacing-xl);
    border: 2px solid var(--color-border);
    border-radius: 1rem;
    background: var(--color-background);
    transition: all 0.3s;
}

.pricing-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(255, 140, 66, 0.1);
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(255, 140, 66, 0.15);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
}

.price-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
}

.price-period {
    font-size: 1rem;
    color: var(--color-muted);
}

.savings {
    margin-top: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: rgba(127, 176, 105, 0.1);
    color: var(--color-secondary);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-block;
}

.plan-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.plan-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-muted);
}

.plan-features li:last-child {
    border-bottom: none;
}

/* Testimonials Section */
.testimonials-section {
    padding: var(--spacing-2xl) 0;
    background: var(--color-secondary-bg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.testimonial-card {
    padding: var(--spacing-xl);
    background: var(--color-background);
    border-radius: 1rem;
    border: 1px solid var(--color-border);
}

.testimonial-stars {
    display: flex;
    gap: 0.25rem;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    color: var(--color-foreground);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.author-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.author-meta {
    font-size: 0.875rem;
    color: var(--color-muted);
}

/* Nutritionists Section */
.nutritionists-section {
    padding: var(--spacing-2xl) 0;
}

.nutritionists-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.nutritionist-card {
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    background: var(--color-background);
    text-align: center;
}

.nutritionist-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--color-primary);
}

.nutritionist-specialty {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.nutritionist-description {
    color: var(--color-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.nutritionist-credentials {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nutritionist-credentials li {
    font-size: 0.875rem;
    color: var(--color-muted);
}

/* Trust Section */
.trust-section {
    padding: var(--spacing-2xl) 0;
    background: var(--color-secondary-bg);
}

.trust-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.trust-card {
    padding: var(--spacing-lg);
    background: var(--color-background);
    border-radius: 1rem;
    text-align: center;
    border: 1px solid var(--color-border);
}

.trust-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.trust-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.trust-description {
    color: var(--color-muted);
}

/* FAQ Section */
.faq-section {
    padding: var(--spacing-2xl) 0;
}

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

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
    background: none;
    border: none;
    font-size: 1.125rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    color: var(--color-foreground);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-primary);
    transition: transform 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding-bottom: var(--spacing-lg);
}

.faq-answer p {
    color: var(--color-muted);
    line-height: 1.7;
}

/* Footer */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    background: var(--color-foreground);
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    height: 3rem;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    max-width: 300px;
}

.footer-heading {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (min-width: 768px) {
    .logo {
        height: 6rem;
    }

    .nav-links {
        display: flex;
    }

    .mobile-menu-btn {
        display: none;
    }

    .hero-heading {
        font-size: 3.5rem;
    }

    .cta-buttons {
        flex-direction: row;
    }

    .hero-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .nutritionists-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .trust-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .hero-heading {
        font-size: 4rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card,
.step-card,
.pricing-card,
.testimonial-card,
.nutritionist-card,
.trust-card {
    animation: fadeIn 0.6s ease-out;
}