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

:root {
    /* Dopamine Colors Palette */
    --primary-color: #6366f1; /* Indigo */
    --secondary-color: #8b5cf6; /* Purple */
    --accent-color: #dc2626; /* Wine Red */
    --success-color: #059669; /* Green */
    --background-color: #ffffff; /* White */
    --surface-color: #f8fafc; /* Light Gray */
    --text-primary: #1e293b; /* Dark Gray */
    --text-secondary: #64748b; /* Medium Gray */
    --text-light: #94a3b8; /* Light Gray */
    --border-color: #e2e8f0; /* Border Gray */
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-8);
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-4);
}

h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

@media (min-width: 768px) {
    h1 {
        font-size: var(--font-size-4xl);
    }
    
    h2 {
        font-size: var(--font-size-3xl);
    }
}

@media (min-width: 1024px) {
    h1 {
        font-size: var(--font-size-5xl);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    white-space: nowrap;
}

.btn-primary {
    background-color: #25d366;
    color: white;
}

.btn-primary:hover {
    background-color: #4f46e5;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.btn-large {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav {
    padding: var(--spacing-4) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.whatsapp-btn {
    background-color: #25d366;
    color: white;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    transition: all 0.2s ease-in-out;
}

.whatsapp-btn:hover {
    background-color: #128c7e;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
    padding: calc(80px + var(--spacing-16)) 0 var(--spacing-16);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.hero-content {
    display: grid;
    gap: var(--spacing-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-16);
    }
}

.hero-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-8);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

@media (min-width: 640px) {
    .hero-cta {
        flex-direction: row;
        gap: var(--spacing-6);
    }
}

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

.hero-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

/* Section Styles */
section {
    padding: var(--spacing-16) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-12);
    color: var(--text-primary);
}

/* Benefits Section */
.benefits {
    background-color: var(--surface-color);
}

.benefits-grid {
    display: grid;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.benefit-card {
    background-color: white;
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease-in-out;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.benefit-icon {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-6);
}

.benefit-icon img {
    width: 48px;
    height: 48px;
}

.benefit-icon svg {
    color: var(--primary-color);
}

.benefit-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
}

.benefit-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* How it Works Section */
.steps {
    display: grid;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .steps {
        gap: var(--spacing-12);
    }
}

.step {
    display: flex;
    gap: var(--spacing-6);
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.step-content {
    flex: 1;
}

.step-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-3);
}

.step-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Testimonials Section */
.testimonials {
    background-color: var(--surface-color);
}

.testimonials-grid {
    display: grid;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.testimonial-card {
    background-color: white;
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease-in-out;
}

.testimonial-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stars {
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-lg);
}

.testimonial-text {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-6);
    font-style: italic;
}

.testimonial-author strong {
    color: var(--text-primary);
    display: block;
}

.testimonial-author span {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

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

.faq-question {
    width: 100%;
    padding: var(--spacing-6) 0;
    background: none;
    border: none;
    text-align: left;
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s ease-in-out;
}

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

.faq-icon {
    transition: transform 0.2s ease-in-out;
    color: var(--text-light);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
}
/* retirei pra implementar no JS*/
/*
.faq-item.active .faq-answer {
    max-height: 200px;
}
*/
.faq-answer p {
    padding-bottom: var(--spacing-6);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* About Section */
.about-content {
    display: grid;
    gap: var(--spacing-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .about-content {
        grid-template-columns: 2fr 1fr;
    }
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-6);
}

.about-image {
    display: flex;
    justify-content: center;
}

.about-image img {
    max-width: 200px;
    height: auto;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    color: white;
    margin-bottom: var(--spacing-6);
}

.cta-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-8);
    opacity: 0.9;
    line-height: 1.7;
}

.guarantees {
    display: grid;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-10);
    text-align: left;
}

@media (min-width: 768px) {
    .guarantees {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-6);
    }
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-weight: 500;
}

.guarantee-item svg {
    color: #ffffff;
    flex-shrink: 0;
}

.cta-buttons {
    display: flex;
    justify-content: center;
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-content {
    display: grid;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer-section h3 {
    color: white;
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-lg);
}

.footer-section p {
    color: var(--text-light);
    line-height: 1.7;
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-2);
}

.footer-section ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.footer-logo img {
    width: 32px;
    height: 32px;
}

.social-links {
    display: flex;
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
}

.social-links a {
    font-size: var(--font-size-xl);
    text-decoration: none;
    transition: transform 0.2s ease-in-out;
}

.social-links a:hover {
    transform: scale(1.1);
}

.footer-bottom {
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-8);
    border-top: 1px solid #374151;
    text-align: center;
    color: var(--text-light);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    transition: all 0.3s ease-in-out;
    text-decoration: none;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: scale(1.1);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 640px) {
    .hero-cta {
        align-items: stretch;
    }
    
    .btn {
        text-align: center;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        align-self: center;
    }
    
    .guarantees {
        text-align: center;
    }
}

/* Performance Optimizations */
img {
    max-width: 100%;
    height: auto;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.faq-question:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .whatsapp-float,
    .whatsapp-btn {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero {
        padding-top: var(--spacing-8);
    }
}