/* Reset Básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
}

:root {
    /* Cores em Hexadecimal */
    --navy-blue: #0a192f;   
    --light-navy: #112240;  
    --black-bg: #000000;    
    --silver: #C0C0C0;      
    --lead-gray: #2b2b2b;
    --white: #ffffff;
    --whatsapp-green: #25D366;
    
    /* Gradientes */
    --silver-grad: linear-gradient(135deg, #E0E0E0 0%, #A9A9A9 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--black-bg);
    color: var(--silver);
    overflow-x: hidden;
}

/* --- Header / Navbar (COM TRANSPARÊNCIA) --- */
header {
    /* MUDANÇA AQUI: Cor RGB do Azul Marinho com 0.9 (90%) de opacidade */
    background-color: rgba(10, 25, 47, 0.5);
    
    /* Efeito de Vidro Fosco (Blur) para o que passar por trás */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px); /* Para Safari */
    
    padding: 1rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1); /* Borda mais sutil */
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.logo {
    height: 50px;
    width: auto;
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--silver);
    font-weight: 500;
    transition: color 0.3s;
    font-size: 1.1rem;
}

.nav-links a:hover {
    color: var(--white);
    text-shadow: 0 0 8px rgba(255,255,255,0.4);
}

/* --- Hero Section (Banner Principal) --- */
.hero-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 100vh;
    padding: 100px 5% 40px;
    
    /* Degradê linear da direita (grafite) para a esquerda (azul marinho) */
    background: linear-gradient(to left, var(--lead-gray), var(--navy-blue));
    
    position: relative;
    overflow: hidden; 
}

/* --- Camada da Imagem de Fundo (Transparente) --- */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('bg_contabilidade.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.50; 
    z-index: 0;
    mix-blend-mode: overlay;
}

/* Camada do efeito de luz radial */
.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(192,192,192,0.1), transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
    text-align: left;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 10px;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.hero-content p {
    font-size: 1.1rem;
    color: #cccccc;
    margin-bottom: 20px;
    line-height: 1.6;
}

.hero-benefits {
    list-style: none;
    margin-bottom: 25px;
    padding-left: 0;
}

.hero-benefits li {
    margin-bottom: 8px;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    text-shadow: 0 1px 5px rgba(0,0,0,0.5);
}

.hero-benefits i {
    color: var(--silver);
}

/* --- Container da Chamada para Ação --- */
.cta-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start; 
    gap: 10px;
    margin-top: 10px;
}

.cta-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0 !important;
    letter-spacing: 0.5px;
    animation: pulseText 2s infinite;
    text-align: left;
}

@keyframes pulseText {
    0% { opacity: 0.8; }
    50% { opacity: 1; text-shadow: 0 0 10px rgba(255, 255, 255, 0.5); }
    100% { opacity: 0.8; }
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--whatsapp-green);
    color: white;
    padding: 15px 50px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
    background-color: #1ebe57;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.hero-img-effect {
    max-width: 80%;
    filter: drop-shadow(0 0 20px rgba(192, 192, 192, 0.3));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* --- Services Section --- */
.services-section {
    padding: 100px 5%;
    background-color: var(--black-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--silver-grad);
    margin: 10px auto 0;
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--light-navy);
    padding: 40px 30px;
    border-radius: 15px;
    border: 1px solid #1e3a5f;
    transition: all 0.4s ease;
    text-align: left;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--silver);
    box-shadow: 0 10px 30px rgba(192, 192, 192, 0.1);
}

/* --- Gradiente nos Ícones --- */
.service-card i {
    font-size: 2.5rem;
    margin-bottom: 20px;
    background: var(--silver-grad);
    display: inline-block; 
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

.service-card h3 {
    color: var(--white);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.service-card p {
    color: #a0a0a0;
    line-height: 1.5;
}

/* --- Footer --- */
footer {
    background-color: var(--navy-blue);
    color: var(--silver);
    text-align: center;
    padding: 20px;
    border-top: 1px solid #333;
    font-size: 0.9rem;
}

/* --- Mobile Responsiveness --- */
.hamburger {
    display: none;
    cursor: pointer;
}

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

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        gap: 0;
        flex-direction: column;
        background-color: rgba(10, 25, 47, 0.95); /* Menu Mobile também transparente */
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0,0,0,0.5);
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links li {
        margin: 20px 0;
    }

    .hero-section {
        flex-direction: column-reverse;
        justify-content: center;
        text-align: center;
        padding-top: 120px;
    }

    .hero-content {
        text-align: center;
        margin-bottom: 40px;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-benefits {
        display: inline-block;
        text-align: left;
    }
    
    .cta-container {
        align-items: center;
        margin-top: 20px;
    }
    
    .cta-text {
        text-align: center;
    }

    .hero-image {
        margin-bottom: 20px;
    }
}