/* Reset global para evitar problemas de dimensionamento de caixas */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0b132b; /* Fundo escuro principal */
    color: #ffffff;
    margin: 0;
    padding: 10px; /* Evita colar nas bordas em dispositivos móveis */
}

.container {
    max-width: 500px;
    margin: 20px auto;
    background: #1c2541;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    text-align: center;
    border: 1px solid #3a506b;
}

/* Imagens do Cabeçalho */
.header .banner {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 15px;
    display: block;
}

.header .logo {
    max-width: 220px;
    width: 100%;
    height: auto;
    margin-bottom: 10px;
    transition: transform 0.3s ease;
}

.header .logo:hover {
    transform: scale(1.03);
}

/* Box do Teste Grátis / Aviso */
.trial-box {
    background: #3a506b;
    color: #ffffff;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 15px;
    border-left: 4px solid #ffd700;
    text-align: left; /* Melhora a leitura de avisos */
}

/* Container de Cards */
.planos-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

/* Card Individual */
.card-plano {
    border: 2px solid #00b4d8;
    border-radius: 10px;
    padding: 15px;
    background: #0b132b;
    transition: transform 0.2s ease, border-color 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-plano:hover {
    transform: translateY(-3px);
    border-color: #90e0ef;
}

.card-plano h3 {
    margin: 0 0 10px 0;
    color: #90e0ef;
    font-size: 1.1em;
}

.card-plano .preco {
    font-size: 1.5em;
    font-weight: bold;
    color: #ffd700;
    margin: 10px 0;
}

/* Botão de Compra */
.btn-comprar {
    background-color: #00b4d8;
    color: #ffffff;
    border: none;
    padding: 12px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    width: 100%;
    font-size: 1em;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-comprar:hover {
    background-color: #0077b6;
}

.btn-comprar:active {
    transform: scale(0.98);
}

.btn-comprar:focus {
    outline: 2px solid #ffd700;
    outline-offset: 2px;
}

/* Ajuste Responsivo para Celulares Muito Pequenos */
@media (max-width: 360px) {
    .planos-container {
        grid-template-columns: 1fr; /* Coloca um card abaixo do outro em telas menores que 360px */
    }
}