/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores padrão - serão sobrescritas dinamicamente */
    --color-primary: #3b82f6;
    --color-secondary: #8b5cf6;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-background: #ffffff;
    --color-background-alt: #f9fafb;
    --color-border: #e5e7eb;
    --color-button: #3b82f6;
    --color-button-hover: #2563eb;
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 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;
    
    /* Espaçamento */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Sombras */
    --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);
    
    /* Transições */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

/* Dark Mode Variables */
body.dark {
    --color-text: #f9fafb;
    --color-text-light: #d1d5db;
    --color-background: #111827;
    --color-background-alt: #1f2937;
    --color-border: #374151;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ===== LOADING SPINNER ===== */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-background);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.loading-spinner.hidden {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--color-button-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--color-button);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    color: var(--color-text);
}

/* ===== HEADER ===== */
.header {
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

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

.logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.site-name {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-list a {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
}

.nav-list a:hover::after {
    width: 100%;
}

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

.dark-mode-toggle {
    background: none;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text);
}

.dark-mode-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: scale(1.05);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--color-text);
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-alt) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-headline {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.hero-subheadline {
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

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

.professional-photo {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    object-fit: cover;
    aspect-ratio: 4/5;
}

/* ===== BEFORE & AFTER SECTION ===== */
.before-after {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-background-alt);
}

.before-after-carousel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.before-after-item {
    background: var(--color-background);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.before-after-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.before-after-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: relative;
}

.before-after-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.before-after-label {
    position: absolute;
    top: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.before-after-label.before {
    left: var(--spacing-sm);
}

.before-after-label.after {
    right: var(--spacing-sm);
}

.before-after-caption {
    padding: var(--spacing-lg);
    text-align: center;
    font-weight: 500;
    color: var(--color-text);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-background);
}

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

.testimonial-card {
    background: var(--color-background-alt);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
}

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

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: var(--spacing-lg);
    font-size: 4rem;
    color: var(--color-primary);
    opacity: 0.3;
    font-family: serif;
}

.testimonial-content {
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
    line-height: 1.6;
}

.testimonial-image {
    width: 100%;
    max-width: 250px;
    height: auto;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.testimonial-author {
    font-weight: 600;
    color: var(--color-primary);
}

.testimonial-stars {
    color: #fbbf24;
    margin-bottom: var(--spacing-sm);
}

/* ===== FEATURES SECTION ===== */
.features {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-background-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: white;
    font-size: var(--font-size-xl);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

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

/* ===== FINAL CTA SECTION ===== */
.final-cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    text-align: center;
}

.final-cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.final-cta-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.final-cta .btn-primary {
    background-color: white;
    color: var(--color-primary);
    font-weight: 600;
}

.final-cta .btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--color-background-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    align-items: center;
    text-align: center;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--color-primary);
}

.copyright {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header-content {
        padding: var(--spacing-sm) 0;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .hero-headline {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subheadline {
        font-size: var(--font-size-lg);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-xl);
    }
    
    .before-after-carousel,
    .testimonials-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .final-cta-title {
        font-size: var(--font-size-2xl);
    }
    
    .final-cta-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-headline {
        font-size: var(--font-size-2xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .before-after-images {
        grid-template-columns: 1fr;
    }
    
    .before-after-label.after {
        right: auto;
        left: var(--spacing-sm);
        top: auto;
        bottom: var(--spacing-sm);
    }
}

/* ===== 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 */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000000;
    }
    
    body.dark {
        --color-border: #ffffff;
    }
}

/* ===== LEGAL PAGES ===== */
.legal-content {
    padding: var(--spacing-3xl) 0;
    min-height: calc(100vh - 200px);
}

.legal-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--color-border);
}

.legal-header h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.last-updated {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    font-style: italic;
}

.legal-body {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.legal-section {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.legal-section:last-child {
    border-bottom: none;
}

.legal-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-md);
}

.legal-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
    margin: var(--spacing-lg) 0 var(--spacing-md);
}

.legal-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.legal-section p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.legal-section ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

.legal-section li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.legal-section a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.legal-section a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.contact-info-legal {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background-color: var(--color-background-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.contact-method h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-method p {
    margin-bottom: var(--spacing-xs);
}

.response-time {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    font-style: italic;
    text-align: center;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-background-alt);
    border-radius: var(--radius-md);
}

/* Active nav link for legal pages */
.nav-list a.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* ===== PRINT STYLES ===== */
@media print {
    .header,
    .footer,
    .dark-mode-toggle,
    .mobile-menu-toggle,
    .hero-buttons,
    .final-cta {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    .hero-headline {
        font-size: 24pt;
    }
    
    .section-title {
        font-size: 18pt;
    }
    
    .legal-content {
        padding: 0;
    }
    
    .legal-header h1 {
        font-size: 20pt;
    }
    
    .legal-section h2 {
        font-size: 16pt;
    }
    
    .legal-section h3 {
        font-size: 14pt;
    }
}