/* LcSystems - style.css */
/* Versão 6.2 (Final de Lançamento) - Correção Seletiva de Overflow */

:root {
    --background-dark: #0D1117;
    --background-secondary: #161B22;
    --border-color: #30363d;
    --text-primary: #F0F6FC;
    --text-secondary: #8B949E;
    --accent-color: #3B82F6;
    --button-bg: #F0F6FC;
    --button-text: #0D1117;
    --font-principal: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

/* REVERTIDO: Overflow-x removido da tag html global */
html { 
    scroll-behavior: smooth; 
}

body {
    font-family: var(--font-principal);
    color: var(--text-primary);
    background-color: var(--background-dark);
    background-image: linear-gradient(180deg, var(--background-secondary), var(--background-dark));
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; /* ADICIONADO DE VOLTA: Para corrigir o bug do formulário no desktop */
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* --- Tipografia e Links --- */
h1, h2, h3, h4 { font-family: var(--font-principal); color: var(--text-primary); line-height: 1.2; font-weight: 700; letter-spacing: -0.04em; }
h1 { font-size: 4rem; }
h2 { font-size: 2.5rem; margin-bottom: 3rem; text-align: center; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; font-weight: 600; letter-spacing: -0.02em; }
p { margin-bottom: 1rem; color: var(--text-secondary); }
p.subtitle { font-size: 1.25rem; line-height: 1.5; max-width: 60ch; }
a { color: var(--text-primary); text-decoration: none; font-weight: 500; transition: color 0.2s ease; }
a:hover { color: var(--text-secondary); }

/* --- Cabeçalho e Navegação --- */
.main-header { background-color: rgba(13, 17, 23, 0.7); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding: 1.2rem 0; border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 1000; }
.main-header .container { display: flex; justify-content: space-between; align-items: center; }
.logo img { height: 30px; display: block; }
.main-nav ul { list-style: none; display: flex; align-items: center; gap: 10px; }
.main-nav a { color: var(--text-secondary); font-size: 1rem; font-weight: 500; padding: 8px 12px; border-radius: 6px; }
.main-nav a:hover { color: var(--text-primary); background-color: rgba(48, 54, 61, 0.5); }
.nav-button { background-color: var(--button-bg); color: var(--button-text); border: 1px solid var(--button-bg); transition: all 0.2s ease; }
.nav-button:hover { background-color: transparent; color: var(--button-bg); }
.menu-toggle { display: none; }

/* --- Seções, Botões e Formulários --- */
.cta-button { display: inline-block; background-color: var(--button-bg); color: var(--button-text); padding: 14px 28px; font-size: 1rem; font-weight: 500; border-radius: 8px; border: 1px solid var(--button-bg); cursor: pointer; transition: all 0.2s ease; }
.cta-button:hover { background-color: transparent; color: var(--button-bg); }
section { padding: 100px 0; }
.hero { text-align: center; }
.hero .container { display: flex; flex-direction: column; align-items: center; }
.hero .subtitle { margin: 1.5rem auto 2.5rem auto; } /* margin auto deve centralizar */
.grid-diferenciais { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; text-align: left; }
.diferencial-item { padding: 30px; border-radius: 8px; background-color: var(--background-secondary); border: 1px solid var(--border-color); border-top: 2px solid var(--border-color); transition: all 0.3s ease; }
.diferencial-item:hover { transform: translateY(-5px); border-top-color: var(--accent-color); }
.page-content h1 { text-align: center; margin-bottom: 1rem; }
.page-content .subtitle { text-align: center; margin: 0 auto 3rem auto; }
.contact-form { max-width: 700px; margin: 40px auto 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group input, .form-group textarea { width: 100%; padding: 14px; background-color: var(--background-secondary); border: 1px solid var(--border-color); border-radius: 8px; font-size: 1rem; font-family: var(--font-principal); color: var(--text-primary); transition: all 0.2s ease; box-sizing: border-box; } /* Adicionado box-sizing aqui também */
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--button-bg); box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1); }
.main-footer { padding: 50px 0; margin-top: 50px; text-align: center; color: var(--text-secondary); border-top: 1px solid var(--border-color); }

/* --- ESTILOS DO PORTFÓLIO (CARDS) --- */
.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 2rem; }
.portfolio-grid-item { display: flex; flex-direction: column; text-decoration: none; background-color: var(--background-secondary); border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.portfolio-grid-item:hover { transform: translateY(-5px); box-shadow: 0 8px 20px rgba(0,0,0,0.2); }
.portfolio-image { width: 100%; height: 200px; object-fit: cover; display: block; border-bottom: 1px solid var(--border-color); }
.portfolio-item-content { padding: 20px; flex-grow: 1; display: flex; flex-direction: column; }
.portfolio-item-content h3, .portfolio-item-content h4 { color: var(--text-primary); margin-top: 0; margin-bottom: 10px; font-size: 1.1rem; }
.portfolio-item-content p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.5; margin-bottom: 0; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; flex-grow: 1; }
.link-portfolio-completo { text-align: center; margin-top: 40px; }

/* --- ANIMAÇÃO DE ENTRADA (FADE-IN) --- */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* --- RESPONSIVIDADE (AJUSTES FINOS) --- */
@media (max-width: 768px) {
    
    /* CORREÇÃO AQUI: Aplica o overflow forte apenas no mobile */
    html, body {
        overflow-x: hidden;
    }

    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }
    section { padding: 60px 0; }
    .grid-diferenciais { grid-template-columns: 1fr; gap: 40px; }
    .menu-toggle { display: flex; flex-direction: column; justify-content: space-around; width: 30px; height: 25px; background: transparent; border: none; cursor: pointer; padding: 0; z-index: 1010; }
    .menu-toggle .bar { display: block; width: 100%; height: 3px; background-color: var(--text-primary); border-radius: 3px; transition: all 0.3s ease-in-out; }
    .menu-toggle.is-active .bar:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .menu-toggle.is-active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.is-active .bar:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
    .main-nav { position: fixed; top: 0; right: 0; height: 100vh; width: 80%; max-width: 300px; background-color: var(--background-secondary); border-left: 1px solid var(--border-color); transform: translateX(100%); visibility: hidden; transition: transform 0.3s ease-in-out, visibility 0.3s ease-in-out; z-index: 1005; }
    .main-nav.nav-active { transform: translateX(0); visibility: visible; }
    .main-nav ul { flex-direction: column; align-items: center; justify-content: center; width: 100%; height: 100%; gap: 20px; }
    .main-nav a { font-size: 1.2rem; }
}
@media (max-width: 480px) {
    h1 { font-size: 2.4rem; letter-spacing: -0.05em; }
    .hero .subtitle { font-size: 1.1rem; }
    .container { padding: 0 15px; }
}