:root {
    --primary-blue: #2f80ed;
    --dark-blue: #1c4c8f;
    --bg-dark: #121212;
    --bg-accent: #1a1a1a;
    --text-light: #f4f4f4;
    --text-muted: #a0a0a0;
    --white: #ffffff;
    --font-main: 'Inter', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    font-family: var(--font-main);
    overflow-x: hidden; 
}

/* --- Navegação de Ponta a Ponta --- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bg-dark);
    border-top: 4px solid var(--primary-blue);
    padding: 0.5rem 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.5);
}

.container-nav {
    max-width: 100%; 
    padding: 0 4%; 
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-img {
    height: 40px; 
    width: auto;
    display: block;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: opacity 0.3s ease;
}

.nav-links a:hover {
    opacity: 0.8;
}

.btn-nav {
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue) !important;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: none !important; 
    transition: all 0.3s ease;
}

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

/* --- Seção Principal (Hero) Minimalista e Sólida --- */
/* --- Minimalist and Solid Hero Section with Background Image --- */
.hero {
    height: 70vh;
    display: flex;
    align-items: center;
    padding: 0 4%; 
    border-bottom: 1px solid #222; 
    position: relative; /* Necessário para o posicionamento do texto sobre o fundo */
    overflow: hidden;

    /* --- Configuração da Imagem de Fundo e Fade Out --- */
    /* Camada 1: Fade out na parte inferior para a cor de fundo (--bg-dark) */
    /* Camada 2: Sobreposição escura sutil (40% opacidade) para garantir legibilidade do texto */
    /* Camada 3: A imagem real */
    background-image: 
        linear-gradient(to bottom, transparent 60%, var(--bg-dark) 100%),
        linear-gradient(rgba(18, 18, 18, 0.4), rgba(18, 18, 18, 0.4)),
        url('backgroundheader.jpg');
    
    background-size: cover; /* Garante que a imagem cubra toda a seção */
    background-position: center; /* Centraliza a imagem */
    background-repeat: no-repeat;
}

.hero-content {
    max-width: 800px; 
}

.hero h1 {
    font-size: 4rem; 
    color: var(--white);
    border-bottom: 3px solid var(--primary-blue);
    display: inline-block;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    font-weight: 800;
}

.hero p {
    font-size: 1.4rem;
    color: var(--text-muted);
    max-width: 100%;
    margin-bottom: 2.5rem;
    font-weight: 400;
}

.btn-primary, .btn-submit {
    display: inline-block;
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 700;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    font-size: 1.1rem;
    text-transform: none; 
    transition: background 0.3s ease;
}

.btn-primary:hover, .btn-submit:hover {
    background-color: var(--dark-blue);
}

/* --- Seções Gerais --- */
.section {
    padding: 5rem 4%;
}

.bg-light {
    background-color: var(--bg-accent);
}

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

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--white);
    border-left: 5px solid var(--primary-blue);
    padding-left: 1rem;
    text-transform: uppercase;
    font-weight: 800;
}

/* --- Grid do Protocolo --- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step-card {
    background-color: var(--bg-dark);
    padding: 2.5rem;
    border-top: 4px solid var(--primary-blue);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.step-number {
    font-family: var(--font-mono);
    font-size: 3rem;
    color: rgba(47, 128, 237, 0.15); 
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-weight: 800;
    user-select: none;
}

.step-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-blue);
    font-weight: 700;
}

.btn-text {
    color: var(--white);
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    margin-top: 1.2rem;
    border-bottom: 2px solid var(--primary-blue);
}

/* --- Formulário --- */
.form-container {
    max-width: 750px;
    background-color: var(--bg-accent);
    padding: 3rem;
    border-radius: 8px;
}

.form-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--white);
}

input[type="text"], input[type="email"], input[type="url"] {
    padding: 1rem;
    background-color: var(--bg-dark);
    border: 1px solid #333;
    color: var(--white);
    border-radius: 4px;
    font-size: 1rem;
}

input:focus {
    outline: none;
    border-color: var(--primary-blue);
}

small {
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
    margin-bottom: 2rem;
}

.form-checkbox input {
    margin-top: 0.4rem;
}

.btn-submit {
    width: 100%;
    font-weight: 800;
}

.hidden {
    display: none;
}

.feedback-msg {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background-color: rgba(47, 128, 237, 0.05);
    border-left: 4px solid var(--primary-blue);
    border-radius: 4px;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 2.5rem;
    background-color: var(--bg-accent);
    color: var(--white);
    font-weight: 600;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1px;
}