.chat-area {
    flex: 1;
    background-color: var(--bg-chat);
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-normal);
}

.chat-messages {
    max-width: var(--chat-max-width);
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-bottom: 24px;
}

.message {
    display: flex;
    gap: 16px;
    max-width: 88%;
    align-items: flex-start;
}

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

.message--user {
    align-self: flex-end;
    flex-direction: row-reverse;
    max-width: 80%;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

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

.message-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.message-bubble {
    padding: 14px 18px;
    font-size: 14.5px;
    line-height: 1.55;
    word-break: break-word;
    box-shadow: var(--shadow-sm);
}

.message--bot .message-bubble {
    background-color: var(--bubble-bot-bg);
    color: var(--bubble-bot-text);
    border-radius: 4px 16px 16px 16px;
    border: 1px solid var(--bubble-bot-border);
}

.message--user .message-bubble {
    background-color: var(--bubble-user-bg);
    color: var(--bubble-user-text);
    border-radius: 16px 4px 16px 16px;
    border: 1px solid var(--border-color);
}

.message-time {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.message--user .message-time {
    align-self: flex-end;
}

.suggestions-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 6px;
}

.suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.suggestion-btn {
    background-color: var(--bubble-suggestion-bg);
    border: 1px solid var(--bubble-suggestion-border);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: var(--radius-lg);
    font-size: 13px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.suggestion-btn:hover {
    background-color: var(--bubble-suggestion-hover);
    border-color: var(--accent-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.suggestion-btn:active {
    transform: translateY(0);
}

.attachments-carousel {
    display: flex;
    overflow-x: auto;
    gap: 12px;
    padding-bottom: 8px;
    margin-top: 10px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.attachments-carousel::-webkit-scrollbar {
    height: 4px;
}

.compact-card {
    flex: 0 0 240px;
    scroll-snap-align: start;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.compact-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.service-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent-primary);
}

.service-title, .project-card-title {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.service-desc, .project-card-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.service-price {
    font-weight: 600;
    color: var(--accent-primary);
    font-size: 13px;
    margin-top: 4px;
    border-top: 1px solid var(--border-color);
    padding-top: 8px;
}

.project-card-btn {
    align-self: flex-start;
    color: var(--accent-primary);
    font-size: 12px;
    font-weight: 600;
    margin-top: 4px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background-color: var(--text-secondary);
    border-radius: var(--radius-full);
}

.message-bubble p {
    margin-bottom: 8px;
}

.message-bubble p:last-child {
    margin-bottom: 0;
}

.message-bubble strong {
    font-weight: 700;
}

.message-bubble ul {
    margin: 8px 0;
    padding-left: 20px;
    list-style-type: disc;
}

.message-bubble li {
    margin-bottom: 4px;
    font-size: 14px;
}

.message-bubble li:last-child {
    margin-bottom: 0;
}

.message-bubble pre {
    background-color: var(--code-bg);
    border-radius: var(--radius-sm);
    padding: 10px;
    overflow-x: auto;
    margin: 8px 0;
    border: 1px solid var(--border-color);
}

.message-bubble code {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--code-text);
    background-color: var(--code-bg);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
}

.message-bubble pre code {
    padding: 0;
    background-color: transparent;
    color: inherit;
}

.char-counter {
    font-size: 11px;
    color: var(--text-muted);
    margin-right: 12px;
    align-self: center;
    user-select: none;
    transition: color var(--transition-fast);
}

.message-bubble table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
    border: 1px solid var(--border-color);
}

.message-bubble th,
.message-bubble td {
    border: 1px solid var(--border-color);
    padding: 8px;
    font-size: 13.5px;
}

.message-bubble th {
    background: rgba(255, 255, 255, 0.02);
    font-weight: 600;
}

.message-bubble blockquote {
    border-left: 3px solid var(--accent-primary);
    padding-left: 12px;
    margin: 12px 0;
    font-style: italic;
    color: var(--text-secondary);
}

.message-bubble hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 16px 0;
}

.message-bubble .task-list {
    list-style: none;
    padding-left: 0;
}

.message-bubble .task-list-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
    font-size: 14px;
}

.message-bubble .task-list-item input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent-primary);
    cursor: not-allowed;
    margin: 0;
}

@media (max-width: 767px) {
    .chat-input-area {
        padding-bottom: calc(16px + env(safe-area-inset-bottom));
    }
}

@media (min-width: 768px) {
    .chat-area {
        padding: 24px;
    }
}