/* Global styles */
body {
    overflow: hidden;
    font-family: 'Inter', sans-serif;
    background-color: #ffffff;
    color: #212529;
}

:root {
    --sidebar-bg: #f8f9fa;
    --main-bg: #ffffff;
    --border-color: #e9ecef;
    --chat-bg: #f8f9fa;
    --user-message-bg: #0d6efd;
    --bot-message-bg: #f0f0f0;
}

/* Sidebar styles */
.sidebar {
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
}

.chat-history-list {
    max-height: calc(100vh - 250px);
    overflow-y: auto;
    scrollbar-width: none;
    padding: 10px 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.chat-history-list::-webkit-scrollbar {
    width: 6px;
}

.chat-history-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.chat-history-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.chat-history-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.history-item {
    cursor: pointer;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

/* Chat container styles */
.main-content {
    height: 100vh;
    background-color: var(--main-bg);
}

.chat-header {
    background-color: var(--sidebar-bg);
    border-bottom: 1px solid var(--border-color);
}

.messages-container {
    overflow-y: auto;
    padding-bottom: 20px;
    display: flex;
    flex-direction: column;
}

/* Message styles */
.message {
    margin-bottom: 20px;
    max-width: 85%;
    display: inline-block;
}

.user-message {
    margin-left: auto;
    background-color: var(--user-message-bg);
    color: white;
    border-radius: 18px 18px 0 18px;
    padding: 10px 14px;
    float: right;
    clear: both;
    max-width: fit-content;
}

.ai-message {
    margin-right: auto;
    background-color: var(--bot-message-bg);
    color: #212529;
    border-radius: 18px 18px 18px 0;
    padding: 10px 14px;
    float: left;
    clear: both;
    max-width: fit-content;
}

.ai-message pre {
    background-color: #1e1e1e;
    border-radius: 8px;
    padding: 12px;
    overflow-x: auto;
    position: relative;
    margin: 10px 0;
    border: 1px solid rgba(255,255,255,0.1);
}

.ai-message pre code {
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.4;
}

.ai-message pre::before {
    content: attr(data-language);
    position: absolute;
    top: 0;
    right: 0;
    padding: 4px 8px;
    font-size: 12px;
    color: #999;
    background: #2d2d2d;
    border-radius: 0 8px 0 8px;
}

.ai-message pre .copy-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    padding: 4px 8px;
    background: transparent;
    border: none;
    color: #999;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
}

.ai-message pre:hover .copy-btn {
    opacity: 1;
}

.ai-message pre .copy-btn:hover {
    color: #fff;
}

.ai-message img {
    max-width: 100%;
    border-radius: 5px;
}

.system-message {
    color: var(--bs-secondary);
    text-align: center;
}

/* Loading animation */
.typing-indicator {
    display: flex;
    align-items: center;
    margin: 10px 0;
}

.typing-dot {
    width: 8px;
    height: 8px;
    margin: 0 2px;
    background-color: var(--bs-secondary);
    border-radius: 50%;
    animation: typingAnimation 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) {
    animation-delay: 0s;
}

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

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

@keyframes typingAnimation {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-5px);
    }
}

/* Input area styling */
.input-area {
    background-color: var(--sidebar-bg);
    border-top: 1px solid var(--border-color);
}

.model-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-weight: 500;
    background-color: rgba(13, 110, 253, 0.1);
    color: #0d6efd;
}

#message-input {
    resize: none;
    overflow-y: auto;
    max-height: 120px;
}

/* Chat history styling */
.chat-history-list {
    margin-top: 10px;
}

.chat-history-list .history-item {
    background: transparent;
    border: none;
    border-radius: 0;
    margin: 0;
    padding: 8px 12px;
    font-size: 0.85em;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.2s ease;
    min-height: 40px;
}

.chat-history-list .history-item:hover {
    background: rgba(13, 110, 253, 0.05);
}

.chat-history-list .history-item.active {
    background: rgba(var(--bs-primary-rgb), 0.2);
    border-color: var(--bs-primary);
}

.chat-history-list .btn-danger {
    padding: 4px 8px;
    font-size: 14px;
    background-color: transparent;
    border: none;
    color: #dc3545;
    opacity: 0.7;
    transition: all 0.2s ease;
}

.chat-history-list .btn-danger:hover {
    background-color: transparent;
    color: #dc3545;
    opacity: 1;
}

.chat-history-list .delete-button:hover {
    opacity: 1;
    color: #dc3545;
}

.chat-history-list .history-item:hover .delete-btn {
    opacity: 0.7;
}

.chat-history-list .delete-btn:hover {
    opacity: 1 !important;
    color: #dc3545;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 75%;
        z-index: 1000;
        transition: all 0.3s ease;
    }

    .sidebar.active {
        left: 0;
    }

    .mobile-toggle {
        display: block;
    }
}

/* Code block styling */
pre code {
    border-radius: 5px;
    font-family: monospace;
}

/* Markdown content styling */
.markdown-content h1, 
.markdown-content h2, 
.markdown-content h3, 
.markdown-content h4, 
.markdown-content h5, 
.markdown-content h6 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

.markdown-content p {
    margin-bottom: 1rem;
}

.markdown-content ul, 
.markdown-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.markdown-content blockquote {
    border-left: 3px solid var(--bs-primary);
    padding-left: 1rem;
    margin-left: 0;
    color: var(--bs-secondary);
}

.markdown-content table {
    width: 100%;
    margin-bottom: 1rem;
    border-collapse: collapse;
}

.markdown-content table th,
.markdown-content table td {
    padding: 0.5rem;
    border: 1px solid var(--bs-secondary);
}

.markdown-content table th {
    background-color: rgba(var(--bs-secondary-rgb), 0.2);
}