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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    min-height: 100vh;
    padding: 20px;
    color: #fff;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2.5rem;
    color: #00d4ff;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.btn-gerar {
    display: block;
    width: 100%;
    max-width: 300px;
    margin: 0 auto 40px;
    padding: 15px 30px;
    font-size: 1.2rem;
    font-weight: bold;
    color: #fff;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.4);
}

.btn-gerar:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.6);
}

.btn-gerar:active {
    transform: translateY(0);
}

.secao {
    margin-bottom: 40px;
}

.secao h2 {
    margin-bottom: 20px;
    font-size: 1.3rem;
    color: #00d4ff;
    border-bottom: 2px solid #00d4ff;
    padding-bottom: 10px;
}

.lista {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.item:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: #00d4ff;
    transform: translateX(5px);
}

.item.copiado {
    background: rgba(0, 255, 136, 0.3);
    border-color: #00ff88;
}

.item .texto {
    font-size: 1rem;
    flex: 1;
}

.item .chars {
    font-size: 0.85rem;
    color: #888;
    margin-left: 15px;
    white-space: nowrap;
}

/* Responsivo */
@media (max-width: 600px) {
    h1 {
        font-size: 1.8rem;
    }
    
    .item {
        padding: 12px 15px;
    }
    
    .item .texto {
        font-size: 0.9rem;
    }
}