/* Área de mensagens e input */
#messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
    background: #f5f5f5;
    scroll-behavior: smooth;
    display: flex;
    flex-direction: column;
}

#messages::-webkit-scrollbar {
    width: 8px;
}

#messages::-webkit-scrollbar-track {
    background: #f1f1f1;
}

#messages::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

#messages::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.message {
    margin-bottom: 15px;
    animation: fadeIn 0.3s;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.message.own {
    align-items: flex-end;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-info {
    font-size: 12px;
    color: #666;
    margin-bottom: 5px;
}

.message.own .message-info {
    text-align: right;
}

.message-username {
    font-weight: bold;
    color: #667eea;
}

.message.own .message-username {
    color: #764ba2;
}

.message-time {
    margin-left: 10px;
}

.message-text {
    background: white;
    padding: 10px 15px;
    border-radius: 10px;
    display: inline-block;
    max-width: 70%;
    word-wrap: break-word;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.message.own .message-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 3px;
}

.message:not(.own) .message-text {
    border-bottom-left-radius: 3px;
}

.system-message {
    text-align: center;
    color: #888;
    font-style: italic;
    font-size: 14px;
    margin: 10px 0;
}

.typing-indicator {
    padding: 10px 20px;
    min-height: 40px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.typing-indicator.active {
    color: #667eea;
    font-style: italic;
    font-size: 14px;
}

.typing-dots {
    display: inline-flex;
    gap: 4px;
    margin-left: 8px;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    background-color: #667eea;
    border-radius: 50%;
    display: inline-block;
    animation: typing 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

.input-area {
    padding: 20px;
    background: white;
    border-top: 1px solid #ddd;
}

.input-container {
    display: flex;
    gap: 10px;
}

#message-input {
    flex: 1;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s;
}

#message-input:focus {
    border-color: #667eea;
}

#send-button {
    padding: 15px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s;
}

#send-button:hover {
    transform: scale(1.05);
}

#send-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.clear-warning {
    background: #fff3cd;
    color: #856404;
    padding: 10px;
    text-align: center;
    font-size: 13px;
    border-bottom: 1px solid #ffeaa7;
    font-weight: 500;
}

/* Responsivo Mobile - Messages */
@media (max-width: 768px) {
    #messages {
        padding: 12px;
        padding-bottom: 8px;
    }

    .message {
        margin-bottom: 12px;
    }

    .message-info {
        font-size: 11px;
    }

    .message-text {
        max-width: 80%;
        font-size: 14px;
        padding: 9px 13px;
    }

    .typing-indicator {
        padding: 6px 12px;
        min-height: 30px;
        font-size: 13px;
    }

    .typing-dots span {
        width: 6px;
        height: 6px;
    }

    .input-area {
        padding: 10px 12px;
    }

    .input-container {
        gap: 8px;
    }

    #message-input {
        padding: 12px;
        font-size: 14px;
    }

    #send-button {
        padding: 12px 18px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    #messages {
        padding: 10px;
    }

    .message {
        margin-bottom: 10px;
    }

    .message-text {
        max-width: 85%;
        font-size: 13px;
        padding: 8px 12px;
    }

    .typing-indicator {
        padding: 4px 10px;
        min-height: 25px;
        font-size: 12px;
    }

    .input-area {
        padding: 8px 10px;
    }

    #message-input {
        padding: 10px;
        font-size: 13px;
    }

    #send-button {
        padding: 10px 15px;
        font-size: 13px;
    }
}