:root {
    --bg-color: #ffffff;
    --bg-secondary: #f5f5f7; 
    --text-main: #1d1d1f; 
    --text-muted: #86868b;
    --blue-primary: #616170; 
    --blue-hover: #35383E;
    --white: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Tipografia */
h1, h2 {
    font-weight: 800;
    letter-spacing: -0.03em;
}

/* Cabeçalho */
.header-buttons {
    display: flex;
    align-items: center;
    gap: 20px; 
}

.navbar {
    padding: 20px 0;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    height: 40px; 
    width: auto;
    display: block;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo img:hover {
    transform: scale(1.02);
}

/* Botões */
.btn-outline {
    text-decoration: none;
    color: var(--blue-primary);
    border: 1px solid var(--blue-primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background-color: var(--blue-primary);
    color: var(--white);
}

.btn-primary {
    display: inline-block;
    text-decoration: none;
    background-color: var(--blue-primary);
    color: var(--white);
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: 0 10px 20px rgba(97, 97, 97, 0.2);
    transition: all 0.3s ease;
    margin-top: 20px;
}

.btn-primary:hover {
    background-color: var(--blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 25px rgba(67, 72, 76, 0.3);
}

.btn-primary i {
    margin-right: 8px;
    font-size: 1.2rem;
}

/* Seção Hero */
.hero {
    padding: 80px 0;
    background-color: var(--bg-color);
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-text h1 span {
    color: var(--blue-primary);
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    width: 100%;
    border-radius: 30px;
}

/* --- Faixa de Marcas (Estilo Profissional) --- */
.brands-stripe {
    background-color: var(--bg-secondary);
    padding: 60px 0; /* Mais espaço para respirar */
    text-align: center;
    border-top: 1px solid rgba(0,0,0,0.03); /* Linha sutil para separar as seções */
    border-bottom: 1px solid rgba(0,0,0,0.03);
}

.brands-stripe p {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px; /* Espaçamento maior entre as letras dá tom de luxo */
    color: var(--text-muted);
    margin-bottom: 40px; /* Afasta o texto das logos */
    font-weight: 600;
}

.brands-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap; /* Permite quebrar linha no celular em vez de espremer */
    gap: 40px 80px; /* 40px de espaço vertical, 80px de espaço horizontal */
}

.brand-item {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* O SEGREDO DO VISUAL PROFISSIONAL: Filtro CSS */
.brand-item img {
    height: 50px; /* Define uma altura padrão para todas ficarem equilibradas */
    width: auto;
    object-fit: contain;
    /* Deixa todas as logos cinzas e um pouco transparentes */
    filter: grayscale(100%) opacity(50%);
    transition: all 0.4s ease;
    cursor: pointer;
}

/* Efeito ao passar o mouse: a logo volta à cor original (Apple preta, Xiaomi laranja, etc) */
.brand-item:hover img {
    filter: grayscale(0%) opacity(100%);
    transform: scale(1.05); /* Leve zoom */
}

/* Seção Showcase */
.showcase {
    padding: 100px 0;
}

.showcase-content {
    display: flex;
    align-items: center;
    gap: 60px;
    flex-direction: row-reverse;
}

.showcase-image {
    flex: 1;
}

.showcase-image img {
    width: 100%;
    border-radius: 30px;
}

.showcase-text {
    flex: 1;
}

.showcase-text h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.showcase-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.features-list {
    list-style: none;
}

.features-list li {
    font-size: 1.1rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.features-list li i {
    color: var(--blue-primary);
    background-color: rgba(0, 102, 204, 0.1);
    padding: 8px;
    border-radius: 50%;
    font-size: 0.9rem;
}

/* Rodapé */
footer {
    background-color: var(--bg-secondary);
    padding: 60px 0;
    text-align: center;
    color: var(--text-muted);
    border-top: 1px solid rgba(0,0,0,0.05);
}

.footer-logo {
    display: flex;
    justify-content: center; 
    align-items: center;
    margin-bottom: 20px; 
}

.footer-logo img {
    height: 70px; 
    width: auto;
    object-fit: contain;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-logo img:hover {
    opacity: 1; 
}

/* Responsividade para Celulares */
@media (max-width: 768px) {
    .hero-content, .showcase-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.8rem;
    }
    
    .hero-text p {
        margin: 0 auto 30px auto;
    }

    .brands-logos {
        gap: 30px 40px; 
    }
    
    .brand-item img {
        height: 36px;
    }
    
    .showcase-text h2 {
        font-size: 2.2rem;
    }
    
    .features-list li {
        justify-content: center;
    }
    
}