/* base.css - Estilos base e layout */
:root {
    /* Tipografia */
    --font-family-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;
    
    /* Espaçamento */
    --spacing-unit: 1rem;
    --spacing-sm: calc(var(--spacing-unit) * 0.5);
    --spacing-md: var(--spacing-unit);
    --spacing-lg: calc(var(--spacing-unit) * 2);
    --spacing-xl: calc(var(--spacing-unit) * 4);
}

/* Reset Básico */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

.section {
    padding: var(--spacing-xl) 0;
}

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

/* Tipografia */
h1, h2, h3, h4 {
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

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

p {
    margin-bottom: var(--spacing-md);
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

/* Botões */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
    cursor: pointer;
    text-align: center;
}

/* Header */
.header {
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-background);
}

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

.logo a {
    display: block;
    height: 40px;
}

.logo svg {
    height: 100%;
    width: auto;
}

.nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-lg);
}

.nav a {
    font-weight: 500;
    padding: var(--spacing-sm) 0;
}

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

/* Grid */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

/* Cards */
.card {
    padding: var(--spacing-lg);
    border-radius: 8px;
    background-color: var(--color-background);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

/* Testimonials */
.testimonial {
    padding: var(--spacing-md);
    border-radius: 4px;
    background-color: var(--color-background);
}

.testimonial p {
    font-style: italic;
}

.testimonial h4 {
    margin-top: var(--spacing-sm);
    font-weight: 600;
    font-size: 1rem;
}

/* CTA Section */
.cta {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background-color: var(--color-primary);
    color: var(--color-text-light);
}

.cta h2 {
    margin-bottom: var(--spacing-lg);
}

.cta-small {
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    border: 1px solid var(--color-accent);
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.footer ul {
    list-style: none;
}

.footer li {
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    font-size: 0.85rem;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
}

.contact-info h3 {
    margin-top: var(--spacing-lg);
}

.contact-form-container {
    padding: var(--spacing-lg);
    border-radius: 8px;
    background-color: var(--color-background-light);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: var(--font-size-base);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group textarea {
    resize: vertical;
}

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

.checkbox-group label {
    display: inline;
    font-weight: 400;
}

/* About Page */
.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
}

.sidebar {
    padding: var(--spacing-lg);
    background-color: var(--color-background-light);
    border-radius: 8px;
}

.sidebar h3 {
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* Service Page */
.service-item {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px dashed #ccc;
}

.service-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

/* Responsividade */
@media (max-width: 992px) {
    .contact-grid, .about-grid {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .nav {
        margin: var(--spacing-md) 0;
    }
    
    .nav ul {
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.25rem;
    }
    
    .cta-small {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 576px) {
    .nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
}