/* Webinar Chat Styles */
.webinar-chat-wrapper {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-height: 600px;
    display: flex;
    flex-direction: column;
}

.webinar-chat-wrapper.collapsed {
    max-height: none;
}

.webinar-chat-wrapper.collapsed .webinar-chat-body {
    display: none;
}

.webinar-chat-header {
    background: #f8f9fa;
    padding: 15px 20px;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    position: relative;
}

.webinar-chat-header h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin: 0;
    flex: 1;
}

.webinar-chat-toggle-btn {
    background: none;
    border: none;
    color: #495057;
    cursor: pointer;
    padding: 5px 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    transition: color 0.2s;
    margin-left: auto;
}

.webinar-chat-toggle-btn:hover {
    color: #212529;
}

.webinar-chat-toggle-btn i {
    font-size: 0.8rem;
    transition: none;
}

.webinar-chat-body {
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.webinar-chat-wrapper:not(.collapsed) .webinar-chat-body {
    display: flex;
}

.webinar-chat-messages {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 20px;
    max-height: 400px;
    min-height: 200px;
    background: #fafafa;
}

.webinar-chat-messages::-webkit-scrollbar {
    width: 6px;
}

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

.webinar-chat-messages::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 3px;
}

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

.webinar-chat-message {
    margin-bottom: 15px;
    animation: fadeIn 0.3s ease-in;
}

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

.webinar-chat-message-content {
    background: #fff;
    padding: 12px 15px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: relative;
    word-wrap: break-word;
    word-break: break-word;
    overflow-wrap: anywhere;
}

.webinar-chat-message-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.webinar-chat-user-name {
    font-weight: 600;
    color: #495057;
    font-size: 0.95rem;
}

.webinar-chat-time {
    font-size: 0.85rem;
    color: #6c757d;
}

.webinar-chat-delete-btn {
    margin-left: auto;
    background: none;
    border: none;
    color: #dc3545;
    cursor: pointer;
    padding: 2px 5px;
    opacity: 0;
    transition: opacity 0.2s;
    font-size: 0.9rem;
}

.webinar-chat-message:hover .webinar-chat-delete-btn {
    opacity: 1;
}

.webinar-chat-delete-btn:hover {
    color: #c82333;
}

.webinar-chat-message-text {
    color: #212529;
    font-size: 0.95rem;
    line-height: 1.5;
    word-wrap: break-word;
    word-break: break-word;
    overflow-wrap: anywhere;
}

.webinar-chat-welcome-message {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
}

.webinar-chat-welcome-message .webinar-chat-message-content {
    background: #e7f3ff;
    border-left: 4px solid #0d6efd;
    padding: 15px 20px;
}

.webinar-chat-welcome-message .webinar-chat-message-text {
    color: #0c5460;
    font-size: 0.95rem;
    line-height: 1.6;
    font-style: italic;
}

.webinar-chat-welcome-message .webinar-chat-message-text p {
    margin: 0;
}

.webinar-chat-empty {
    padding: 40px 20px;
    text-align: center;
}

.webinar-chat-input-wrapper {
    padding: 15px 20px;
    background: #fff;
    border-top: 1px solid #dee2e6;
}

.webinar-chat-form {
    margin: 0;
}

.webinar-chat-form .input-group {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.webinar-chat-form .form-control {
    flex: 1;
    border: 1px solid #ced4da;
    border-radius: 4px;
    padding: 10px 15px;
    font-size: 0.95rem;
}

.webinar-chat-textarea {
    resize: none;
    overflow: hidden;
    min-height: 42px;
    max-height: 200px;
    line-height: 1.5;
}

.webinar-chat-form .form-control:focus {
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.webinar-chat-form .btn {
    white-space: nowrap;
    padding: 12px 20px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.webinar-chat-loading {
    text-align: center;
    padding: 20px;
    color: #6c757d;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .webinar-chat-wrapper {
        max-height: 500px;
    }
    
    .webinar-chat-messages {
        max-height: 300px;
        padding: 15px;
    }
    
    .webinar-chat-message-content {
        padding: 10px 12px;
    }
    
    .webinar-chat-form .input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .webinar-chat-form .input-group > .form-control {
        width: 100% !important;
        border-radius: 4px !important;
    }
    
    .webinar-chat-form .input-group > .btn.btn-primary {
        border-radius: 4px !important;
        height: 42px;
        width: 100%;
    }
}