:root {
    /* Paleta de Cores - Modo Claro */
    --bg-main: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --accent-main: #2DD4BF;
    --accent-secondary: #0D9488;
    --text-main: #1F2937;
    --text-secondary: #6B7280;
    --white: #ffffff;
    --border-color: #E5E7EB;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --header-bg: var(--bg-main); /* Adicionado para flexibilidade */
}

body.dark-mode {
    /* Nova Paleta de Cores - Modo Escuro (baseada na imagem gerada) */
    --bg-main: #1A202C; /* Um azul escuro quase preto */
    --bg-secondary: #2D3748; /* Um cinza azulado mais claro */
    --text-main: #E2E8F0; /* Um cinza claro */
    --text-secondary: #A0AEC0; /* Um cinza médio */
    --accent-main: #38B2AC; /* Teal/Ciano vibrante */
    --accent-secondary: #2C7A7B; /* Teal mais escuro para hover */
    --border-color: #4A5568; /* Cinza para bordas e linhas */
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.3); /* Sombra mais intensa para dark mode */
    --header-bg: #1A202C; /* Define o header também para o fundo principal do dark mode */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.4s ease, color 0.4s ease; /* Transições mais suaves */
}

body.transition-fade {
    opacity: 0;
    animation: fadeInPage 0.8s ease-out forwards;
}

@keyframes fadeInPage {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header e Navegação */
.header {
    background-color: var(--header-bg); /* Usa a variável para header */
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow); /* Adicionado shadow para destaque */
    transition: background-color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -1px;
}
.logo i {
    color: var(--accent-main);
}

.nav-menu {
    display: flex;
    list-style-type: none;
    gap: 30px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 5px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-main);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-main);
}

/* Seletor de Tema */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px; /* Espaçamento entre o switch e outros possíveis elementos */
}

.theme-switcher {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary); /* Cor do texto "Themes" */
    font-size: 0.9rem;
    font-weight: 500;
}

#theme-toggle {
    display: none;
}

.theme-switcher label {
    display: inline-block;
    width: 50px;
    height: 26px;
    background-color: var(--border-color); /* Fundo do switch */
    border-radius: 26px;
    position: relative;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.theme-switcher label::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background-color: var(--white); /* Círculo do switch */
    top: 2px;
    left: 2px;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

#theme-toggle:checked + label {
    background-color: var(--accent-main); /* Cor quando ativado (dark) */
}

#theme-toggle:checked + label::before {
    transform: translateX(24px);
}


/* Seções e Conteúdo Principal */
.page-section {
    padding: 25px 0;
    animation: fadeIn 0.8s ease-in-out;
}
.services-page, .contact-page {
    background-color: var(--bg-secondary);
    min-height: calc(100vh - 120px); 
}


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

.section-title {
    font-size:2rem;
    font-weight: 600;
    color: var(--text-main);
    text-align: center;
    margin-bottom: 40px;
}

/* Hero Section */
.hero-section {
    display: grid;
    /* Alterado: Colunas rebalanceadas para a imagem menor */
    grid-template-columns: 1.2fr 0.8fr; 
    align-items: center;
    gap: 60px;
    padding: 60px 0;
}
.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}
.hero-image img {
    width: 100%;
    /* Alterado: Imagem reduzida */
    max-width: 420px; 
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow);
}


/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
}
.btn-primary {
    background-color: var(--accent-main);
    color: var(--white);
}
.btn-primary:hover {
    background-color: var(--accent-secondary);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(56, 178, 172, 0.4); /* Sombra mais sutil com cor de acento */
}
.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: var(--bg-secondary);
}

/* Seção Por Que Nós (antiga Vantagens) */
.why-us-section {
    background-color: var(--bg-secondary);
}
.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
}
.why-us-card {
    background-color: var(--bg-main);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    box-shadow: var(--shadow); /* Adicionado sombra */
}
.why-us-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15); /* Sombra mais proeminente no hover */
}
.why-us-icon {
    font-size: 3rem;
    color: var(--accent-main);
    margin-bottom: 20px;
}
.why-us-card h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}
.why-us-card p {
    color: var(--text-secondary);
}

/* Seção Depoimentos */
.testimonials-section {
    background-color: var(--bg-main); /* Fundo branco no modo claro, fundo principal no escuro */
}
.testimonial-card {
    background-color: var(--bg-secondary);
    padding: 40px;
    border-radius: 12px;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}
.testimonial-text {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-main);
    margin-bottom: 30px;
}
.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}
.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-main);
}
.testimonial-author h4 {
    font-size: 1.1rem;
    color: var(--text-main);
}
.testimonial-author span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Seção CTA */
.cta-section {
    background-color: var(--accent-main); /* Fundo com a cor de acento */
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}
.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
}
.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9; /* Um pouco mais opaco */
}
.cta-section .btn-primary {
    background-color: var(--white);
    color: var(--accent-main);
}
.cta-section .btn-primary:hover {
    background-color: var(--bg-secondary); /* Um cinza claro no hover */
    color: var(--accent-main);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.4);
}


/* Grid de Serviços (Página de Serviços) */
.services-grid {
    display: grid;
    /* Alterado: 4 colunas para desktop */
    grid-template-columns: repeat(4, 1fr); 
    gap: 20px; /* Gap ligeiramente menor para caber melhor */
}
.service-card {
    background-color: var(--bg-main);
    /* Alterado: Padding reduzido para cards menores */
    padding: 25px; 
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    box-shadow: var(--shadow);
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15); 
}
.service-icon {
    /* Alterado: Ícone menor */
    font-size: 2.2rem; 
    color: var(--accent-main);
    margin-bottom: 15px;
}
.service-card h3 {
    /* Alterado: Título menor */
    font-size: 1.2rem; 
    margin-bottom: 10px;
}
.service-card p {
    /* Alterado: Texto menor */
    font-size: 0.9rem; 
    color: var(--text-secondary);
}


/* Seção de Contato (Página de Contato) */
.card {
    background-color: var(--bg-main);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: background-color 0.3s ease;
}
.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: start;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-main);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--bg-secondary); /* Fundo de input secundário */
    color: var(--text-main);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-main);
    box-shadow: 0 0 0 3px rgba(56, 178, 172, 0.3); /* Sombra do foco com cor de acento */
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-main);
}
.contact-info p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    color: var(--text-secondary);
}
.contact-info i {
    color: var(--accent-main);
    margin-right: 12px;
    width: 20px;
    text-align: center;
}
.security-notice {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}


/* Rodapé Sutil */
.footer {
    background-color: var(--bg-main); /* Fundo principal */
    padding: 30px 0; /* Padding reduzido para ser mais sutil */
    text-align: center;
    border-top: 1px solid var(--border-color); /* Borda superior discreta */
    transition: background-color 0.4s ease, border-color 0.4s ease;
}

.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer .logo {
    color: var(--text-main); /* Logo no footer usa cor de texto principal */
    margin-bottom: 5px;
}
.footer .logo i {
    color: var(--accent-main);
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Modal de Feedback */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7); /* Fundo mais escuro */
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 2000;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--bg-main);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    width: 90%;
    max-width: 450px;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease, background-color 0.3s ease;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}
.modal-overlay.show .modal-content {
    transform: scale(1);
}

.close-button {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s ease;
}
.close-button:hover {
    color: var(--text-main);
}
.modal-icon {
    font-size: 4rem;
    color: var(--accent-main);
    margin-bottom: 20px;
}
#modal-title {
    font-size: 1.8rem;
    color: var(--text-main);
    margin-bottom: 10px;
}
#modal-message {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* --- RESPONSIVIDADE --- */

/* Adicionado: Media query para tablets (Serviços) */
@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-actions {
        display: flex; 
    }
    
    .hamburger {
        display: block;
    }
    
    .nav-actions .theme-switcher {
        /* Esconde o texto "Themes" em telas menores para economizar espaço */
        & span {
            display: none;
        }
    }

    .nav-menu.active {
        display: flex;
        position: absolute;
        left: 0;
        top: 80px;
        flex-direction: column;
        background-color: var(--header-bg);
        width: 100%;
        text-align: center;
        gap: 0;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        border-top: 1px solid var(--border-color);
    }
    .nav-item {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }
    .nav-link {
        display: block;
        padding: 1.2rem 0;
        width: 100%;
    }
    
    .hamburger.active .bar:nth-child(2) { opacity: 0; }
    .hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
    
    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-image {
        grid-row: 1;
        margin-bottom: 30px;
    }
    .hero-image img {
        margin: 0 auto; /* Centraliza a imagem no mobile */
    }

    .hero-title { font-size: 2.5rem; }
    .section-title { font-size: 2.2rem; }
    .why-us-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; }
    .contact-info { margin-top: 30px; }
    
    /* Adicionado: Media query para celulares (Serviços) */
    .services-grid {
        grid-template-columns: 1fr;
    }
}
.contact-page .card {
  max-width: 850px; 
  margin: 0 auto;  
  padding: 30px;   
}

.contact-grid {
  gap: 30px; 
}

/* ESTILOS PARA SIMULAÇÃO DE CONFIDENCIALIDADE */
.security-notice .confidentiality-info {
    font-size: 0.85rem;
    margin-top: 5px;
    color: var(--text-secondary);
}