* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: linear-gradient(to right, #002400, #000000);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 70vh;
    text-align: center;
    overflow-x: hidden;
    position: relative;
}

/* Checkbox invisível */
.menu-toggle {
    display: none;
}

/* Botão abrir menu */
.abrir-menu {
    position: fixed;
    top: 20px;
    left: 20px;
    background: linear-gradient(to right, #065f46, #064e3b);
    color: #46c273;
    border: none;
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    z-index: 1001;
    transition: background 0.3s;
}

.abrir-menu:hover {
    background: #047857;
}

/* Estilo do menu */
.menu-navegacao {
    position: fixed;
    top: 0;
    left: -250px;
    /* escondido por padrão */
    width: 250px;
    height: 100%;
    background: linear-gradient(to bottom, #002d00, #081c18, #0a0f23);
    padding-top: 60px;
    transition: left 0.3s ease;
    z-index: 1000;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.5);
}

.menu-navegacao ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-navegacao li {
    margin: 20px 0;
}

.menu-navegacao a {
    color: #4ade80;
    text-decoration: none;
    font-weight: bold;
    padding: 10px 20px;
    display: block;
    transition: background 0.3s;
}

.menu-navegacao a:hover {
    background: #064e3b;
    border-radius: 4px;
}

/* Botão fechar menu */
.fechar-menu {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: #4ade80;
    font-size: 20px;
    cursor: pointer;
}

/* Quando o checkbox estiver marcado, mostra o menu */
.menu-toggle:checked~.menu-navegacao {
    left: 0;
}

.background-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 300%;
    background: radial-gradient(circle, rgba(0, 255, 0, 0.15) 10%, transparent 80%);
    background-attachment: fixed;
}

@keyframes backgroundMove {
    0% {
        transform: scale(1) translateY(-10px);
        opacity: 0.8;
    }

    100% {
        transform: scale(1.1) translateY(10px);
        opacity: 1;
    }
}

@keyframes movingGlow {
    0% {
        transform: translateX(-10%) translateY(-10%) scale(1);
        opacity: 0.6;
    }

    50% {
        transform: translateX(10%) translateY(10%) scale(1.2);
        opacity: 0.8;
    }

    100% {
        transform: translateX(-10%) translateY(-10%) scale(1);
        opacity: 0.6;
    }
}

.glowing-nebula {
    position: absolute;
    width: 150%;
    height: 150%;
    top: -25%;
    left: -25%;
    background: radial-gradient(circle, rgba(83, 31, 180, 0.4) 10%, transparent 70%);
    animation: movingGlow 8s infinite alternate ease-in-out;
    filter: blur(80px);
    z-index: -1;
}

.container {
    max-width: 900px;
    margin: auto;
    padding: 40px 20px;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #54aa03;
}

h3 {
    font-size: 1.8rem;
    margin-top: 40px;
    margin-bottom: 20px;
    color: #1e3d00;
}

h4 {
    font-size: 1.2rem;
    margin-top: 10px;
    margin-bottom: 10px;
}

p {
    line-height: 1.6;
    margin-bottom: 20px;
    color: white;

}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    margin-bottom: 15px;
    position: relative;
    padding-left: 25px;
}

.legenda {
    margin-top: 15px;
    font-weight: bold;
    color: white;
}