.chat-layout {
    display: flex;
    height: calc(100vh - 80px);
    background: var(--background-color);
}

.chat-sidebar {
    width: 300px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.new-chat-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.new-chat-btn:hover {
    background: var(--primary-dark);
    color: white;
    text-decoration: none;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.current-session-info {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.session-card {
    background: var(--primary-color);
    color: white;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    border: 2px solid var(--primary-color);
}

.session-card .session-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.session-card .session-meta {
    font-size: 0.875rem;
    opacity: 0.9;
}

.chat-session {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
    border: 1px solid transparent;
    background: var(--card-bg);
}

.chat-session:hover {
    background: var(--background-light);
    border-color: var(--border-color);
    transform: translateX(2px);
}

.chat-session .session-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.chat-session .session-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.chat-mode-modal {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.chat-mode-content {
    background: var(--card-bg);
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    max-width: 500px;
    width: 90%;
}

.mode-option-mini {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--card-bg);
    text-align: center;
}

.mode-option-mini:hover {
    border-color: var(--primary-color);
    background: var(--background-light);
    transform: translateY(-2px);
}

.mode-option-mini.selected {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

.mode-icon-mini {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.mode-option-mini.selected .mode-icon-mini {
    color: white;
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--background-color);
}

.chat-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--card-bg);
}

.chat-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    background: var(--card-bg);
}

.message {
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
    animation: messageAppear 0.5s ease-out;
}

@keyframes messageAppear {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Thinking Indicator */
.thinking-indicator {
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    animation: messageAppear 0.5s ease-out;
}

.thinking-content {
    background: var(--card-bg);
    padding: 1rem 1.25rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-style: italic;
    max-width: 200px;
}

.thinking-dots {
    display: flex;
    gap: 0.25rem;
}

.thinking-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary-color);
    animation: thinking 1.4s infinite ease-in-out;
}

.thinking-dot:nth-child(1) { animation-delay: -0.32s; }
.thinking-dot:nth-child(2) { animation-delay: -0.16s; }
.thinking-dot:nth-child(3) { animation-delay: 0s; }

@keyframes thinking {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1.2);
        opacity: 1;
    }
}

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--primary-color);
    color: white;
}

.message.ai .message-avatar {
    background: var(--secondary-color);
    color: white;
}

.message-content {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    max-width: 70%;
    box-shadow: var(--shadow-sm);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.message.user .message-content {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.message-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.chat-input-area {
    padding: 1.5rem;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
}

.chat-input-container {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    max-width: 1000px;
    margin: 0 auto;
    background: var(--card-bg);

}

.chat-input {
    flex: 1;
    resize: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    min-height: 50px;
    max-height: 150px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: var(--transition);
}


.chat-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.send-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-lg);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
}

.send-btn:hover {
    background: var(--primary-dark);
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.suggested-prompts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 2rem;
}

.suggested-prompts .btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--border-radius-lg);
    padding: 0.75rem 1.25rem;
    transition: var(--transition);
}

.suggested-prompts .btn:hover {
    background: var(--background-light);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .chat-sidebar {
        position: fixed;
        left: -300px;
        top: 80px;
        height: calc(100vh - 80px);
        z-index: 1000;
    }
    
    .chat-sidebar.show {
        left: 0;
    }
    
    .chat-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        display: none;
    }
    
    .chat-overlay.show {
        display: block;
    }
    
    .mobile-sidebar-toggle {
        display: block;
        position: absolute;
        left: 1rem;
        top: 50%;
        transform: translateY(-50%);
        background: none;
        border: none;
        color: var(--text-primary);
        font-size: 1.25rem;
    }
}

@media (min-width: 769px) {
    .mobile-sidebar-toggle {
        display: none;
    }
}
[data-theme="dark"] a{
    color: var(--dark-primary)
}