/* Reset e Variáveis do Novo Tema Clean */
:root { 
    --bg-main: #ffffff; 
    --bg-secundario: #f8fafc; 
    --text-dark: #1e293b; 
    --text-muted: #64748b; 
    --primary-blue: #2E5CFF; 
    --font-main: 'Inter', sans-serif; 
}

* { box-sizing: border-box; margin: 0; padding: 0; scroll-behavior: smooth; }
body { background-color: var(--bg-main); color: var(--text-dark); font-family: var(--font-main); overflow-x: hidden; }

/* Header e Logo */
header { display: flex; justify-content: space-between; padding: 25px 5%; align-items: center; position: fixed; width: 100%; top: 0; background: transparent; z-index: 100; transition: all 0.4s ease; }
header.scrolled { padding: 15px 5%; background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(10px); box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05); }

.logo-container { display: flex; flex-direction: column; align-items: center; line-height: 0.9; cursor: pointer; }
.logo-nexu { font-size: 2.2rem; font-weight: 900; color: var(--primary-blue); letter-spacing: 2px; }
.logo-futuro { font-size: 1rem; font-weight: 300; color: transparent; -webkit-text-stroke: 1px var(--primary-blue); letter-spacing: 7px; margin-left: 5px;}

/* Menu e Efeito de Esconder as Abas (Smart Header) */
nav { 
    display: flex; 
    gap: 20px; 
    align-items: center; 
    max-height: 100px; /* Define um limite para podermos zerar depois */
    overflow: hidden; /* Corta qualquer excesso quando encolher */
    transition: all 0.4s ease; /* Transição total (opacidade + altura) */
}

/* Classe que zera o tamanho do menu e esconde */
.nav-hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    max-height: 0; /* Isso faz o buraco branco sumir */
    margin: 0; 
}

nav a { color: var(--text-dark); text-decoration: none; font-size: 0.9rem; font-weight: 600; transition: color 0.3s; }
nav a:hover { color: var(--primary-blue); }
.btn-nav { background: #333; color: #fff !important; padding: 8px 20px; border-radius: 8px; transition: 0.3s; }
.btn-nav:hover { background: var(--primary-blue); }

/* Hero Section */
#hero { height: 100vh; display: flex; align-items: center; justify-content: center; padding: 0 10%; background: radial-gradient(circle at top right, rgba(46, 92, 255, 0.08), transparent 60%); }
.hero-content { animation: fadeIn 1.5s ease; text-align: center; max-width: 800px; margin-top: 40px; }
.badge { background: rgba(46, 92, 255, 0.1); color: var(--primary-blue); padding: 6px 16px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; display: inline-block; margin-bottom: 20px; }
h1 { font-size: 3.5rem; margin: 0 0 20px; line-height: 1.1; font-weight: 900; color: var(--text-dark); letter-spacing: -1px; }
#hero p { color: var(--text-muted); font-size: 1.2rem; margin: 0 auto 40px; }

/* Botões */
.btn-principal { background: var(--primary-blue); color: #fff; padding: 18px 40px; border-radius: 10px; text-decoration: none; font-weight: 700; font-size: 1rem; border: none; cursor: pointer; transition: 0.3s; display: inline-block; box-shadow: 0 10px 25px rgba(46, 92, 255, 0.3); }
.btn-principal:hover { transform: translateY(-3px); box-shadow: 0 15px 35px rgba(46, 92, 255, 0.4); background: #244bcf; }

/* Seções e Títulos */
section { padding: 100px 10%; }
.section-title { text-align: center; margin-bottom: 15px; font-size: 2.5rem; font-weight: 900; color: var(--text-dark); }
.subtitle { text-align: center; color: var(--text-muted); margin-bottom: 50px; font-size: 1.1rem; }

/* Cards Soluções Digitais */
#servicos { background-color: var(--bg-secundario); }
.cards { display: grid; grid-template-columns: 1fr; gap: 30px; }
.card { background: #fff; padding: 40px; border-radius: 15px; border: 1px solid rgba(0, 0, 0, 0.05); box-shadow: 0 10px 30px rgba(0,0,0,0.03); transition: 0.3s; border-left: 5px solid var(--primary-blue); }
.card i { font-size: 2rem; color: var(--primary-blue); margin-bottom: 20px; }
.card h3 { margin-bottom: 15px; font-size: 1.4rem; color: var(--text-dark); }
.card p { color: var(--text-muted); font-size: 1rem; line-height: 1.6; }
.card:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(0,0,0,0.08); }

/* -------------------------------------------
   PORTFÓLIO - MÉTODO IMAGEM REAL (100% BLINDADO)
--------------------------------------------- */
.portfolio-list { display: flex; flex-direction: column; gap: 15px; align-items: center; max-width: 650px; margin: 0 auto; }

.btn-portfolio { 
    width: 100%; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 30px 35px; /* Um pouco mais de espaço para a foto respirar */
    border-radius: 15px; 
    text-decoration: none; 
    font-weight: 700; 
    font-size: 1.2rem; 
    letter-spacing: 1px; 
    color: #fff !important; 
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    position: relative; 
    overflow: hidden; /* Corta a imagem para ela não vazar das bordas redondas */
    background-color: var(--dark-grey); /* Fundo de segurança caso a internet caia */
}

/* 1. Camada Base: A Foto Real */
.portfolio-img {
    position: absolute;
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    object-fit: cover; /* Preenche o botão perfeitamente sem amassar a foto */
    z-index: 1;
    transition: transform 0.6s ease; /* Transição para o zoom */
}

/* 2. Camada do Meio: A Película Escura (Degradê) */
.portfolio-overlay {
    position: absolute;
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.85) 10%, rgba(0,0,0,0.2) 80%);
    z-index: 2;
    transition: background 0.4s ease;
}

/* 3. Camada do Topo: O Texto e o Ícone */
.btn-portfolio span, .btn-portfolio i {
    position: relative;
    z-index: 3;
}

.btn-portfolio i { font-size: 1.3rem; transition: 0.3s; }

/* --- EFEITOS QUANDO O CLIENTE CLICA OU PASSA O MOUSE --- */
.btn-portfolio:hover { 
    transform: translateY(-3px); 
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2); 
}

/* Zoom na foto (Efeito Premium) */
.btn-portfolio:hover .portfolio-img {
    transform: scale(1.1);
}

/* Filtro muda para Azul NEXU */
.btn-portfolio:hover .portfolio-overlay {
    background: linear-gradient(to right, rgba(46, 92, 255, 0.9) 10%, rgba(0,0,0,0.3) 90%);
}

.btn-portfolio:hover i { transform: translateX(8px); }

/* Formulário Clean */
form { display: flex; flex-direction: column; gap: 15px; max-width: 500px; margin: 0 auto; }
input, textarea { padding: 18px; border-radius: 10px; border: 1px solid #e2e8f0; background: #fff; color: var(--text-dark); font-family: var(--font-main); transition: 0.3s; font-size: 1rem; }
input:focus, textarea:focus { border-color: var(--primary-blue); outline: none; box-shadow: 0 0 0 4px rgba(46, 92, 255, 0.1); }

/* Rodapé */
footer { text-align: center; padding: 40px; border-top: 1px solid #e2e8f0; color: var(--text-muted); font-size: 0.9rem; background: var(--bg-secundario); }
.btn-float { position: fixed; bottom: 30px; right: 30px; background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%); color: white; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; text-decoration: none; box-shadow: 0 5px 15px rgba(0,0,0,0.3); z-index: 1000; transition: 0.3s; }
.btn-float:hover { transform: scale(1.1); box-shadow: 0 8px 20px rgba(220, 39, 67, 0.5); }

/* ANIMAÇÕES JAVASCRIPT */
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.hidden { opacity: 0; transform: translateY(40px); transition: all 0.8s ease-out; }
.show { opacity: 1; transform: translateY(0); }
.card:nth-child(2) { transition-delay: 0.2s; }
.btn-portfolio:nth-child(2) { transition-delay: 0.1s; }
.btn-portfolio:nth-child(3) { transition-delay: 0.2s; }
.btn-portfolio:nth-child(4) { transition-delay: 0.3s; }
.btn-portfolio:nth-child(5) { transition-delay: 0.4s; }

/* Responsividade e correção do espaço do cabeçalho */
@media (min-width: 768px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) { 
    header { 
        flex-direction: column; 
        padding: 20px 5%; 
        background: rgba(255, 255, 255, 0.98); 
        box-shadow: 0 5px 10px rgba(0,0,0,0.05); 
    } 
    header.scrolled {
        padding: 10px 5%; /* Encolhe o padding ao rolar */
    }
    nav {
        margin-top: 15px; /* Adiciona o espaço entre logo e abas */
    }
    .nav-hidden {
        margin-top: 0; /* Zera o espaço quando escondido, sumindo o buraco branco */
    }
    h1 { font-size: 2.5rem; }
    .btn-portfolio { font-size: 1rem; padding: 20px 25px; }
}
/* EFEITO RAIOS TECNOLÓGICOS (NEXU) */
.raios-tech {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    z-index: -1;
    pointer-events: none;
    /* Linhas diagonais bem transparentes */
    background: repeating-linear-gradient(
        -45deg,
        transparent,
        transparent 50px,
        rgba(46, 92, 255, 0.03) 50px, /* Azul NEXU quase invisível */
        rgba(46, 92, 255, 0.03) 52px
    );
    background-size: 200% 200%;
    animation: deslizaRaios 20s linear infinite;
}

@keyframes deslizaRaios {
    0% { background-position: 0 0; }
    100% { background-position: 100px 100px; }
}