/* ==========================================
   CONFIGURAÇÕES GERAIS E RESETS
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: #0b0b0d;
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
    position: relative;
    padding: 20px;
}

/* ==========================================
   EFEITO LED BLUR (BACKGROUND)
   ========================================== */
.led-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
}

.led {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15; /* Brilho sutil para não atrapalhar a leitura */
}

.led-blue { top: 10%; left: 10%; width: 250px; height: 250px; background-color: #00d2ff; }
.led-green { bottom: 15%; right: 10%; width: 300px; height: 300px; background-color: #00ff87; }
.led-red { top: 40%; right: 15%; width: 200px; height: 200px; background-color: #ff0055; }
.led-yellow { bottom: 10%; left: 15%; width: 250px; height: 250px; background-color: #ffcc00; }

/* ==========================================
   ESTRUTURA DE CARDS E CONTAINER
   ========================================== */
.container {
    width: 100%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    padding: 30px 24px;
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    text-align: center;
}

.card-section {
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.card-section:last-of-type {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

/* ==========================================
   TIPOGRAFIA
   ========================================== */
h1 {
    font-size: 4rem;
    font-weight: 700;
    color: #ffffff;
    margin: 15px 0;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
    letter-spacing: -1px;
}

h2 {
    font-size: 1.2rem;
    font-weight: 500;
    color: #a0a0a5;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================
   BOTÕES E COMPONENTES INTERATIVOS
   ========================================== */
button {
    background-color: #ffffff;
    color: #000000;
    border: none;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    max-width: 280px;
}

button:hover {
    background-color: #e2e2e5;
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}

/* Links do Menu Principal */
.menu-nav {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
}

.menu-nav a {
    color: #ffffff;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 18px;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.menu-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #00d2ff; /* Destaque em azul no hover */
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.2);
}

/* Botão Voltar */
.btn-voltar {
    display: inline-block;
    color: #a0a0a5;
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 25px;
    transition: color 0.2s;
    font-weight: 500;
}

.btn-voltar:hover {
    color: #ffffff;
}

/* ==========================================
   RESPONSIVIDADE (CELULARES)
   ========================================== */
@media (max-width: 480px) {
    body {
        padding: 15px;
    }
    
    .container {
        padding: 24px 16px;
    }

    h1 {
        font-size: 3.2rem;
    }

    button {
        max-width: 100%; /* Botão vira largura total no celular */
    }
}