/**
 * Chat Interface Styles - 17track.net Style
 */

/* Messages Container */
.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    background: var(--bg-color);
}

/* Welcome Message */
.welcome-message {
    max-width: 480px;
    margin: 1.5rem auto;
    text-align: center;
    padding: 1.5rem;
}

.welcome-icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
}

.welcome-message h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.welcome-message ul {
    list-style: none;
    text-align: left;
    margin: 1rem 0;
    padding: 0;
}

.welcome-message li {
    padding: 0.375rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Quick Actions */
.quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}

.quick-action-btn {
    padding: 0.5rem 0.875rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

.quick-action-btn:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Message Bubbles */
.message {
    display: flex;
    margin-bottom: 0.75rem;
    animation: fadeIn 0.2s ease;
}

.message.user {
    justify-content: flex-end;
}

.message .message-content {
    max-width: 75%;
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius);
    line-height: 1.5;
    font-size: 0.9375rem;
}

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

.message.assistant .message-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: var(--radius-sm);
}

.message .message-time {
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    padding: 0 0.25rem;
}

.message.user .message-time {
    text-align: right;
}

/* Tracking Number Highlight */
.message-content .tracking-number {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', Monaco, monospace;
    font-size: 0.875rem;
}

.message.assistant .tracking-number {
    background: var(--primary-light);
    color: var(--primary-color);
}

/* Tracking Card */
.tracking-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem;
    margin: 0.5rem 0;
}

.tracking-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.tracking-number-display {
    font-family: 'SF Mono', Monaco, monospace;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.875rem;
}

.tracking-status {
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 500;
}

.tracking-status.delivered {
    background: #e8f5e9;
    color: #2e7d32;
}

.tracking-status.transit {
    background: #e3f2fd;
    color: #1565c0;
}

.tracking-status.exception {
    background: #ffebee;
    color: #c62828;
}

.tracking-card-body {
    font-size: 0.8125rem;
}

.tracking-event {
    display: flex;
    gap: 0.5rem;
    padding: 0.375rem 0;
    font-size: 0.8125rem;
}

.tracking-event:not(:last-child) {
    border-bottom: 1px dashed var(--border-color);
}

.event-time {
    color: var(--text-muted);
    font-size: 0.75rem;
    white-space: nowrap;
}

.event-description {
    flex: 1;
    color: var(--text-secondary);
}

/* Warning Note */
.warning-note {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    background: #fff3e0;
    border: 1px solid #ffcc80;
    border-radius: var(--radius-sm);
    padding: 0.625rem;
    margin: 0.5rem 0;
    font-size: 0.8125rem;
    color: #e65100;
}

/* Input Area */
.chat-input-area {
    padding: 0.75rem 1rem 1rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.375rem;
    transition: var(--transition);
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(30, 136, 229, 0.1);
}

.input-wrapper textarea {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    font-size: 0.9375rem;
    line-height: 1.5;
    padding: 0.375rem;
    max-height: 120px;
    outline: none;
    font-family: inherit;
}

.input-wrapper .btn {
    padding: 0.5rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

.send-icon {
    font-size: 1rem;
}

.input-hint {
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin-top: 0.375rem;
    text-align: center;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.625rem 0.875rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    width: fit-content;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.2s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.15s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-4px);
    }
}

/* Chat Sidebar */
.chat-sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h3 {
    font-size: 0.875rem;
    font-weight: 600;
}

.session-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.session-item {
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 0.125rem;
}

.session-item:hover {
    background: var(--bg-color);
}

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

.session-item .session-title {
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 0.125rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.session-item .session-time {
    font-size: 0.6875rem;
    color: var(--text-muted);
}

/* Chat Main */
.chat-main {
    height: calc(100vh - 56px);
    background: var(--bg-color);
}

.chat-container {
    display: flex;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}