/* General Styles */
body {
    font-family: 'Inter', sans-serif;
    background-color: #F0F2F5;
    margin: 0;
    height: 100vh;
    overflow: hidden;
}

.chat-container {
    display: flex;
    height: 100%;
}

.btn-icon {
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

/* Conversations Pane */
.conversations-pane {
    width: 360px;
    background-color: #fff;
    border-right: 1px solid #ddd;
    display: flex;
    flex-direction: column;
}

.ch-header {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #ddd;
}

.ch-search .form-control:focus {
    box-shadow: none;
}

.ch-list {
    overflow-y: auto;
    flex-grow: 1;
}

.ch-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.ch-item:hover {
    background-color: #f5f5f5;
}

.ch-item.active {
    background-color: #e7f3ff;
}

.ch-item-avatar {
    position: relative;
    margin-right: 1rem;
}

.ch-item-avatar img {
    width: 56px;
    height: 56px;
    border-radius: 50%;
}

.online-dot {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    background-color: #31a24c;
    border: 2px solid #fff;
    border-radius: 50%;
}

.ch-item-content {
    flex-grow: 1;
    overflow: hidden;
}

.ch-item-title {
    display: flex;
    justify-content: space-between;
}

.ch-item-time {
    font-size: 0.8rem;
}

.ch-item-preview {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9rem;
}

/* Chat Window Pane */
.chat-window-pane {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    background-color: #F0F2F5;
}

.chat-header {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background-color: #fff;
    border-bottom: 1px solid #ddd;
}

.chat-body {
    flex-grow: 1;
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.message {
    display: flex;
    margin-bottom: 1rem;
    max-width: 60%;
}

.message-bubble {
    padding: 0.75rem 1rem;
    border-radius: 16px;
    font-size: 0.95rem;
}

.message.received {
    align-self: flex-start;
}

.message.received .message-bubble {
    background-color: #fff;
    color: #212529;
}

.message.sent {
    align-self: flex-end;
}

.message.sent .message-bubble {
    background-image: linear-gradient(to right, #007bff, #00C6FF);
    color: #fff;
}

.chat-footer {
    padding: 1rem 1.5rem;
    background-color: #fff;
    display: flex;
    align-items: center;
}

.chat-footer .form-control {
    border-radius: 20px;
    background-color: #F0F2F5;
    border: none;
}

.chat-footer .form-control:focus {
    box-shadow: none;
    background-color: #e9ecef;
}

/* Responsive */
@media (max-width: 768px) {
    .conversations-pane {
        width: 100%;
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 10;
        transition: transform 0.3s ease-in-out;
        transform: translateX(0);
    }

    .chat-window-pane {
        display: none; /* Hidden by default on mobile */
    }
    
    /* Add class to show chat window and hide conversations */
    .chat-container.show-chat .conversations-pane {
        transform: translateX(-100%);
    }
    .chat-container.show-chat .chat-window-pane {
        display: flex;
    }
}