/* Styles spécifiques au chat */
.chat-container {
    display: grid;
    grid-template-columns: 280px 1fr 280px;
    height: calc(100vh - 64px);
    background: white;
}

/* Sidebar gauche */
.chat-sidebar {
    border-right: 1px solid var(--gray-light);
    display: flex;
    flex-direction: column;
    background: var(--light);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.conversations-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.conversation-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background 0.3s;
    margin-bottom: 4px;
}

.conversation-item:hover {
    background: var(--gray-light);
}

.conversation-item.active {
    background: var(--primary-light);
    color: var(--primary);
}

.conversation-info {
    flex: 1;
    overflow: hidden;
}

.conversation-info strong {
    display: block;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conversation-info small {
    font-size: 0.75rem;
    color: var(--gray);
}

.sidebar-section {
    padding: 20px;
    border-top: 1px solid var(--gray-light);
}

.sidebar-section h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 0.875rem;
    color: var(--gray);
}

.memories-list {
    max-height: 200px;
    overflow-y: auto;
}

.memory-item {
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-light);
    font-size: 0.875rem;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--gray-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.token-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Zone de chat principale */
.chat-main {
    display: flex;
    flex-direction: column;
    background: white;
}

.chat-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-light);
}

.chat-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.chat-actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    background: none;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--gray);
    transition: all 0.3s;
}

.btn-icon:hover {
    background: var(--light);
    color: var(--dark);
}

.model-info {
    display: flex;
    gap: 12px;
}

.model-badge, .token-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: var(--light);
    border-radius: 12px;
    font-size: 0.75rem;
}

/* Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.message {
    display: flex;
    gap: 12px;
    max-width: 80%;
}

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

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

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

.message-content {
    flex: 1;
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.message-header strong {
    font-size: 0.875rem;
}

.message-header small {
    font-size: 0.75rem;
    color: var(--gray);
}

.message-text {
    padding: 12px;
    border-radius: var(--border-radius);
    background: var(--light);
    font-size: 0.9375rem;
    line-height: 1.5;
}

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

.welcome-message {
    max-width: 100%;
    align-self: center;
}

.welcome-message .message-text {
    background: var(--light);
    border: 1px solid var(--primary-light);
}

.welcome-message .message-text ul {
    margin-left: 20px;
    margin-top: 8px;
}

/* Input area */
.chat-input-area {
    padding: 20px;
    border-top: 1px solid var(--gray-light);
    background: white;
}

.input-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.action-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--gray-light);
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--gray);
    transition: all 0.3s;
}

.action-btn:hover {
    background: var(--light);
    color: var(--dark);
}

.input-wrapper {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.input-wrapper textarea {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    resize: none;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.5;
    min-height: 44px;
    max-height: 200px;
}

.input-wrapper textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.send-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.3s;
    flex-shrink: 0;
}

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

.input-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    font-size: 0.875rem;
    color: var(--gray);
}

/* Sidebar droite */
.chat-info-sidebar {
    border-left: 1px solid var(--gray-light);
    padding: 20px;
    overflow-y: auto;
    background: var(--light);
}

.info-section {
    margin-bottom: 30px;
}

.info-section h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    color: var(--dark);
    font-size: 0.875rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 0.875rem;
}

.info-value {
    font-weight: 500;
    color: var(--dark);
}

.info-badges {
    display: flex;
    gap: 4px;
}

.badge {
    padding: 2px 8px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 12px;
    font-size: 0.75rem;
}

.tip {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    padding: 12px;
    background: white;
    border-radius: var(--border-radius);
    border-left: 3px solid var(--primary);
}

.tip i {
    color: var(--primary);
    font-size: 1rem;
    margin-top: 2px;
}

.tip p {
    font-size: 0.875rem;
    color: var(--dark);
}

.upgrade-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--info) 100%);
    color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: center;
}

.upgrade-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.upgrade-content h5 {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.upgrade-content p {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 16px;
}

/* Loading animation */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray);
    animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* Responsive chat */
@media (max-width: 1024px) {
    .chat-container {
        grid-template-columns: 250px 1fr;
    }
    
    .chat-info-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .chat-container {
        grid-template-columns: 1fr;
    }
    
    .chat-sidebar {
        display: none;
    }
}