/* Estilos do corpo */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

/* Tema padrão */
:root {
    --background-color: #007ced;
    --text-color: black;
    --container-bg-color: #ffffff;
    --button-bg-color: #28a745;
    --button-text-color: white;
    --button-bg-hover: #218838;
    --input-bg-color: white;
    --input-text-color: black;
}

/* Tema claro */
body.light {
    --background-color: #f5f5f5;
    --text-color: #333;
    --container-bg-color: #ffffff;
    --button-bg-color: #007bff;
    --button-text-color: white;
    --button-bg-hover: #0056b3;
    --input-bg-color: white;
    --input-text-color: black;
}

/* Tema escuro */
body.dark {
    --background-color: #121212;
    --text-color: #e0e0e0;
    --container-bg-color: #1f1f1f;
    --button-bg-color: #bb86fc;
    --button-text-color: white;
    --button-bg-hover: #8854d0;
    --input-bg-color: #333;
    --input-text-color: #ddd;
}

/* Container principal */
.container {
    width: 100%;
    max-width: 600px;
    background-color: var(--container-bg-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

/* Seleção de tema */
.theme-selector {
    text-align: right;
    margin-bottom: 20px;
}

/* Título principal */
.container h2 {
    color: var(--text-color);
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.8rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    font-style: italic;
}

/* Destaque para o texto do WhatsApp */
.highlight {
    color: #25D366;
    font-weight: bold;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
    font-style: italic;
}

/* Estilo do ícone do WhatsApp */
.whatsapp-icon {
    width: 24px;
    height: 24px;
    margin-left: 8px;
}

/* Campo de input */
.form-control {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 16px;
    background-color: var(--input-bg-color);
    color: var(--input-text-color);
}

/* Botões */
.btn {
    padding: 10px 20px;
    font-size: 14px;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-right: 10px;
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
}

.btn-container {
    display: flex;
    justify-content: space-between;
}

.btn:hover {
    background-color: var(--button-bg-hover);
}

/* Link gerado */
.link-container {
    margin-top: 20px;
    text-align: center;
}

.link-container a {
    color: #007bff;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    margin-top: 10px;
}

.link-container a:hover {
    text-decoration: underline;
}

/* Mensagem de erro */
.erro {
    color: red;
    font-weight: bold;
    margin-bottom: 10px;
}

/* Estilo do QR Code */
#qrcode {
    margin-top: 20px;
    display: flex;
    justify-content: center;
}

/* Feedback de ação realizada */
.feedback {
    color: green;
    font-weight: bold;
    margin-top: 10px;
    transition: opacity 0.5s ease;
}