/* 🎨 Paleta de Cores */
:root {
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --background-color: #fff;
    --border-color: #ddd;
    --hover-color: #ccc;
    --message-sent-color: #dcf8c6;
    --message-received-color: #f1f0f0;
    --text-color: #333;
    --timestamp-color: #666;
    --notification-color: red;
}

/* 🖥️ Janela do Chat */
.chat-popup {
    position: fixed;
    bottom: 10px;
    width: 320px;
    max-width: 90vw;
    height: 420px;
    border: 1px solid var(--border-color);
    background-color: var(--background-color);
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: 10px;
    overflow: hidden;
    z-index: 9999;
    transition: transform 0.3s ease, opacity 0.3s ease;
    animation: slideIn 0.4s ease;
}

.sino-alerta {
    margin-left: 5px;
    font-size: 14px;
    color: gold;
    animation: ring 1s infinite;
}

@keyframes ring {
    0% { transform: rotate(0); }
    25% { transform: rotate(-10deg); }
    50% { transform: rotate(10deg); }
    75% { transform: rotate(-5deg); }
    100% { transform: rotate(0); }
}

@keyframes slideIn {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 📌 Cabeçalho do Chat */
.chat-header {
    background-color: var(--primary-color);
    color: var(--background-color);
    padding: 10px 15px;
    font-size: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 8px 8px 0 0;
}

.chat-title {
    font-weight: bold;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

.chat-buttons {
    display: flex;
    gap: 8px;
}

.chat-buttons button {
    background: none;
    border: none;
    color: var(--background-color);
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    transition: color 0.3s;
}

.chat-buttons button:hover {
    color: var(--hover-color);
}

/* 📜 Histórico de Mensagens */
.chat-historico {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
    background-color: #f9f9f9;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scrollbar-width: thin;
}

/* 💬 Estilo das Mensagens */
.mensagem {
    max-width: 75%;
    padding: 10px 14px;
    border-radius: 12px;
    word-wrap: break-word;
    font-size: 14px;
    position: relative;
    display: inline-block;
}

/* 💚 Mensagem Enviada (lado direito) */
.sent-message {
    align-self: flex-end;
    background-color: var(--message-sent-color);
    text-align: right;
    border-bottom-right-radius: 2px;
}

/* 💬 Mensagem Recebida (lado esquerdo) */
.received-message {
    align-self: flex-start;
    background-color: var(--message-received-color);
    text-align: left;
    border-bottom-left-radius: 2px;
}

/* 🕒 Estilo do Timestamp */
.timestamp {
    font-size: 10px;
    color: var(--timestamp-color);
    margin-top: 5px;
    text-align: right;
}

/* 📩 Rodapé do Chat */
.chat-footer {
    display: flex;
    padding: 10px;
    gap: 5px;
    align-items: center;
    border-top: 1px solid var(--border-color);
    background-color: var(--background-color);
}

/* 📝 Caixa de Entrada de Mensagens */
.chat-footer textarea {
    flex: 1;
    min-height: 40px;
    max-height: 120px;
    resize: vertical;
    overflow-y: auto;
    padding: 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    font-size: 14px;
}

/* 📤 Botão de Envio */
.chat-footer button {
    padding: 8px 14px;
    background-color: var(--primary-color);
    color: var(--background-color);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

.chat-footer button:hover {
    background-color: var(--primary-dark);
}

/* 🔽 Estado Minimizado */
.chat-popup.minimized {
    height: 50px;
    overflow: hidden;
    cursor: pointer;
}

.chat-popup.minimized .chat-historico,
.chat-popup.minimized .chat-footer {
    display: none;
}

/* 🔴 Notificação de Nova Mensagem */
.chat-popup.has-new-message {
    border: 2px solid var(--notification-color);
    animation: pulse 0.8s infinite alternate;
}

@keyframes pulse {
    0% { box-shadow: 0 0 5px var(--notification-color); }
    50% { box-shadow: 0 0 15px var(--notification-color); }
    100% { box-shadow: 0 0 5px var(--notification-color); }
}

.sino-alerta {
    color: red;
    margin-left: 6px;
    animation: pulse 1s infinite alternate;
}

/* 💬 Ícone do Chat */
.chat-icon {
    display: inline-block;
    visibility: visible;
    opacity: 1;
    z-index: 9999;
}

.chat-icon:hover {
    transform: scale(1.1);
}

/* 🖋️ Ajuste Responsivo */
@media (max-width: 480px) {
    .chat-popup {
        width: 95vw;
        height: 50vh;
    }
    .chat-title {
        max-width: 120px;
    }
}