:root {
    --bg: #0f0c0c;
    --text: #f0f0f0;
    --primary: #ff0000;
    --accent: #ffffff;
    --shadow: rgba(255, 0, 0, 0.2);
}

body {
    margin: 0;
    font-family: 'Courier New', monospace;
    background: var(--bg);
    color: var(--text);
}

nav {
    background: #000;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--accent);
    position: relative;
}

.nav-container {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    margin-right: 10px;
    filter: hue-rotate(180deg);
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 2px;
    color: var(--primary);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
    margin: 0;
    padding: 0;
}

nav ul li a {
    color: var(--accent);
    text-decoration: none;
}

.menu-toggle {
    display: none;
    font-size: 2rem;
    color: var(--accent);
    background: none;
    border: none;
    cursor: pointer;
}

/* HERO */

.hero {
    padding: 4rem 1rem;
    text-align: center;
    background: linear-gradient(to bottom, #0f0c0c, #1f0000);
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--primary);
    text-shadow: 0 0 10px var(--shadow);
}

.hero p {
    font-size: 1.2rem;
    margin-top: 1rem;
}

/* SECTIONS */

section {
    padding: 2rem 1rem;
    max-width: 1000px;
    margin: auto;
}

h2 {
    color: var(--accent);
    border-bottom: 1px solid var(--primary);
    padding-bottom: 0.5rem;
}

/* CARDS */

.cards {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1rem;
}

.card {
    flex: 1 1 250px;
    background: #1d0909;
    border: 1px solid var(--primary);
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 0 10px var(--shadow);
}

.card h3 {
    color: var(--primary);
}

/* FOOTER */

footer {
    background: #000;
    color: #666;
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
}

/* RESPONSIVO */

@media (max-width: 740px) {
    nav ul {
        flex-direction: column;
        background: #111;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        display: none;
        text-align: center;
        padding: 1rem 0;
        z-index: 10;
    }

    nav ul.show {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .cards {
        flex-direction: column;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .logo {
        font-size: 1.2rem;
    }
}