/* ========================================
   Chat Redesign - Aligned with Project Design System
   ======================================== */

/* Import project variables from style.css */
/* Using existing CSS variables from :root */

/* Chat-specific overrides and additions */
:root {
    /* Chat-specific colors bound to theme */
    --chat-primary: var(--color-primary, #4A6FA5);
    --chat-primary-light: var(--color-primary-light, #6F92C2);
    --chat-primary-dark: var(--color-primary-dark, #365983);
    --chat-danger: var(--color-danger, #D2555A);
    --chat-warning: var(--color-warning, #DFA94B);
    --chat-info: var(--color-info, #3D7FC1);
    --chat-success: var(--color-success, #2D8F6F);

    /* Backgrounds */
    --chat-bg-app: var(--bg-body, #F6F7FB);
    --chat-bg-sidebar: var(--bg-card, #FFFFFF);
    --chat-bg-chat: var(--bg-card, #FFFFFF);
    --chat-bg-message-user: #EEF2F7;
    --chat-bg-message-admin: var(--color-primary, #4A6FA5);
    --chat-bg-message-assistant: var(--bg-card, #FFFFFF);
    --chat-bg-message-followup: rgba(223, 169, 75, 0.14);
    --chat-bg-hover: #F1F3F8;
    --chat-bg-active: rgba(74, 111, 165, 0.08);

    /* Text Colors */
    --chat-text-primary: var(--text-main, #1E2430);
    --chat-text-secondary: var(--text-sub, #5C6372);
    --chat-text-tertiary: var(--text-muted, #8B92A3);
    --chat-text-white: #FFFFFF;

    /* Borders */
    --chat-border-color: var(--border, #E1E5EF);
    --chat-border-radius: var(--radius-md, 8px);

    /* Shadows */
    --chat-shadow-sm: var(--shadow-soft, 0 1px 3px rgba(0, 0, 0, 0.06));
    --chat-shadow: var(--shadow-md, 0 2px 6px rgba(0, 0, 0, 0.08));
    --chat-shadow-lg: var(--shadow-lg, 0 4px 12px rgba(0, 0, 0, 0.12));

    /* Sizes */
    --chat-sidebar-width: 360px;
    --chat-header-height: 52px;
    --chat-input-height: 56px;
    --chat-navbar-height: 56px;

    /* Transitions */
    --chat-transition: var(--transition-base, all 0.2s ease);
}

/* ========================================
   Page Layout (Chat only)
   ======================================== */

.page-chat {
    --app-max-width: 1600px;
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

.page-chat .app-content {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding: 0.5rem 0.5rem 0.5rem;
    overflow: hidden;
}

/* ========================================
   Chat App Wrapper
   ======================================== */

.chat-app-wrapper {
    background: var(--chat-bg-app);
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-app-wrapper>.container-fluid {
    flex: 1;
    min-height: 0;
    display: flex;
    min-width: 0;
}

.chat-app {
    display: flex;
    flex: 1;
    min-height: 0;
    min-width: 0;
    width: 100%;
    background: var(--chat-bg-app);
    border-radius: var(--chat-border-radius);
    overflow: hidden;
    box-shadow: var(--chat-shadow);
}

/* ========================================
   Sidebar (User List)
   ======================================== */

.chat-sidebar {
    width: var(--chat-sidebar-width);
    flex: 0 0 var(--chat-sidebar-width);
    min-width: var(--chat-sidebar-width);
    max-width: var(--chat-sidebar-width);
    background: var(--chat-bg-sidebar);
    border-right: 1px solid var(--chat-border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
}

/* Sidebar Header */
.sidebar-header {
    padding: 0.75rem;
    border-bottom: 1px solid var(--chat-border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--chat-header-height);
    background: var(--chat-bg-sidebar);
}

.sidebar-header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    color: var(--chat-text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-family-heading, 'Prompt', sans-serif);
}

.sidebar-title i {
    color: var(--chat-primary);
}

.user-count-badge {
    background: var(--chat-primary);
    color: var(--chat-text-white);
    padding: 0.25rem 0.625rem;
    border-radius: 12px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.btn-close-sidebar {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--chat-text-secondary);
    cursor: pointer;
    padding: 0.65rem;
    border-radius: var(--chat-border-radius);
    transition: var(--chat-transition);
    min-width: 44px;
    min-height: 44px;
}

.btn-close-sidebar:hover {
    background: var(--chat-bg-hover);
    color: var(--chat-text-primary);
}

/* Search Container */
.search-container {
    padding: 0.5rem 0.65rem;
    border-bottom: 1px solid var(--chat-border-color);
    background: var(--chat-bg-sidebar);
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    background: var(--chat-bg-app);
    border-radius: 20px;
    padding: 0 0.75rem;
    transition: var(--chat-transition);
}

.search-input-wrapper:focus-within {
    background: var(--chat-bg-hover);
}

.search-icon {
    color: var(--chat-text-tertiary);
    font-size: 0.875rem;
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    color: var(--chat-text-primary);
    outline: none;
    font-family: var(--font-family-base, 'Prompt', sans-serif);
}

.search-input::placeholder {
    color: var(--chat-text-tertiary);
}

.btn-filter {
    background: none;
    border: none;
    color: var(--chat-text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--chat-border-radius);
    transition: var(--chat-transition);
    position: relative;
}

.btn-filter:hover {
    color: var(--chat-primary);
}

.filter-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background: var(--chat-danger);
    color: white;
    font-size: 0.625rem;
    font-weight: 600;
    padding: 2px 5px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
}

/* Filter Panel */
.filter-panel {
    background: var(--chat-bg-sidebar);
    border-bottom: 1px solid var(--chat-border-color);
    padding: 0.5rem 0.625rem;
    animation: slideDown 0.2s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.filter-title {
    font-weight: 600;
    color: var(--chat-text-primary);
    font-size: 0.8125rem;
}

.btn-clear-filter {
    background: none;
    border: none;
    color: var(--chat-primary);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 0.125rem 0.375rem;
    border-radius: 6px;
    transition: var(--chat-transition);
}

.btn-clear-filter:hover {
    background: var(--chat-primary-light);
}

.filter-section {
    margin-bottom: 0.5rem;
}

.filter-section:last-child {
    margin-bottom: 0;
}

.filter-section-title {
    font-size: 0.65625rem;
    font-weight: 600;
    color: var(--chat-text-secondary);
    margin-bottom: 0.3125rem;
    text-transform: uppercase;
    letter-spacing: 0;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3125rem;
}

.filter-btn {
    background: var(--chat-bg-app);
    border: 1px solid var(--chat-border-color);
    color: var(--chat-text-secondary);
    min-height: 1.875rem;
    padding: 0.25rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--chat-transition);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.filter-btn:hover {
    background: var(--chat-bg-hover);
    border-color: var(--chat-primary);
    color: var(--chat-primary);
}

.filter-btn.active {
    background: var(--chat-primary);
    border-color: var(--chat-primary);
    color: white;
}

.filter-btn i {
    font-size: 0.6875rem;
}

.tag-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3125rem;
    max-height: 4.5rem;
    overflow-y: auto;
}

.tag-filter-btn {
    background: var(--chat-bg-app);
    border: 1px solid var(--chat-border-color);
    color: var(--chat-text-secondary);
    min-height: 1.625rem;
    padding: 0.1875rem 0.5rem;
    border-radius: 999px;
    font-size: 0.71875rem;
    cursor: pointer;
    transition: var(--chat-transition);
}

.tag-filter-btn:hover {
    border-color: var(--chat-primary);
    color: var(--chat-primary);
}

.tag-filter-btn.active {
    background: var(--chat-primary);
    border-color: var(--chat-primary);
    color: white;
}

.page-filters {
    min-width: 0;
}

.page-filter-compact {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.375rem;
}

.page-filter-open {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.375rem;
    min-width: 0;
    min-height: 2rem;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--chat-border-color);
    border-radius: 6px;
    background: var(--chat-bg-app);
    color: var(--chat-text-primary);
    cursor: pointer;
    text-align: left;
    transition: var(--chat-transition);
}

.page-filter-open:hover {
    border-color: var(--chat-primary);
    background: var(--chat-bg-hover);
}

.page-filter-open__main {
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
}

.page-filter-open__sub {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--chat-text-tertiary);
    font-size: 0.71875rem;
}

.page-filter-open i {
    color: var(--chat-text-tertiary);
    font-size: 0.625rem;
}

.page-filter-clear {
    min-height: 2rem;
    padding: 0 0.5rem;
    border: 1px solid var(--chat-border-color);
    border-radius: 6px;
    background: transparent;
    color: var(--chat-primary);
    font-size: 0.75rem;
    cursor: pointer;
}

.page-filter-clear:hover {
    background: var(--chat-bg-hover);
}

.page-filter-option {
    display: grid;
    grid-template-columns: 1rem minmax(0, 1fr);
    align-items: center;
    gap: 0.4375rem;
    min-width: 0;
    margin: 0;
    padding: 0.375rem 0.5rem;
    border: 1px solid var(--chat-border-color);
    border-radius: 6px;
    background: var(--chat-bg-app);
    color: var(--chat-text-secondary);
    cursor: pointer;
    transition: var(--chat-transition);
}

.page-filter-option:hover {
    border-color: var(--chat-primary);
    color: var(--chat-text-primary);
}

.page-filter-option.active {
    border-color: var(--chat-primary);
    background: var(--chat-bg-active);
    color: var(--chat-text-primary);
}

.page-filter-option input {
    width: 0.9375rem;
    height: 0.9375rem;
    margin: 0;
    accent-color: var(--chat-primary);
}

.page-filter-option__text {
    display: grid;
    gap: 0.0625rem;
    min-width: 0;
}

.page-filter-option__name,
.page-filter-option__meta {
    display: block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.page-filter-option__name {
    font-size: 0.78125rem;
    font-weight: 600;
}

.page-filter-option__meta {
    font-size: 0.65625rem;
    color: var(--chat-text-tertiary);
}

.page-filter-modal .modal-dialog {
    max-width: min(560px, calc(100vw - 1rem));
}

.page-filter-modal .modal-content {
    border-radius: 8px;
}

.page-filter-modal__header {
    padding: 0.75rem 0.875rem 0.5rem;
}

.page-filter-modal__header .modal-title {
    font-size: 0.9375rem;
    font-weight: 700;
}

.page-filter-modal__count {
    margin-top: 0.125rem;
    color: var(--chat-text-tertiary);
    font-size: 0.75rem;
}

.page-filter-modal__toolbar {
    display: grid;
    grid-template-columns: 0.875rem minmax(0, 1fr);
    align-items: center;
    gap: 0.375rem;
    margin: 0 0.875rem 0.5rem;
    padding: 0.375rem 0.5rem;
    border: 1px solid var(--chat-border-color);
    border-radius: 6px;
    background: var(--chat-bg-app);
    color: var(--chat-text-tertiary);
}

.page-filter-modal__toolbar input {
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--chat-text-primary);
    font-size: 0.8125rem;
}

.page-filter-modal__body {
    display: grid;
    align-content: start;
    gap: 0.25rem;
    min-height: 14rem;
    max-height: min(58vh, 30rem);
    padding: 0 0.875rem 0.75rem;
}

.page-filter-modal__empty {
    padding: 1.5rem 0.75rem;
    color: var(--chat-text-tertiary);
    text-align: center;
    font-size: 0.8125rem;
}

.page-filter-modal__footer {
    padding: 0.5rem 0.875rem 0.75rem;
    gap: 0.5rem;
}

.no-tags {
    color: var(--chat-text-tertiary);
    font-size: 0.8125rem;
}

.filter-summary {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--chat-border-color);
    font-size: 0.8125rem;
    color: var(--chat-text-secondary);
}

/* User List */
.user-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
    scrollbar-gutter: stable;
}

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

.user-list::-webkit-scrollbar-track {
    background: transparent;
}

.user-list::-webkit-scrollbar-thumb {
    background: var(--chat-border-color);
    border-radius: 3px;
}

.user-list::-webkit-scrollbar-thumb:hover {
    background: var(--chat-text-tertiary);
}

.loading-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    color: var(--chat-text-secondary);
    gap: 0.75rem;
}

.user-list-footer {
    padding: 0.875rem;
    border-top: 1px solid var(--chat-border-color);
    background: var(--chat-bg-sidebar);
    display: grid;
    gap: 0.5rem;
    justify-items: center;
}

.user-list-footer__meta,
.user-list-end {
    font-size: 0.75rem;
    color: var(--chat-text-secondary);
    text-align: center;
    line-height: 1.4;
}

.btn-load-more-users {
    width: 100%;
    min-height: 40px;
    border: 1px solid var(--chat-border-color);
    border-radius: 10px;
    background: var(--chat-bg-app);
    color: var(--chat-primary);
    font-size: 0.8125rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    cursor: pointer;
    transition: var(--chat-transition);
}

.btn-load-more-users:hover:not(:disabled) {
    background: var(--chat-primary-light);
    border-color: var(--chat-primary);
}

.btn-load-more-users:disabled {
    cursor: wait;
    opacity: 0.72;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--chat-border-color);
    border-top-color: var(--chat-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* User Item */
.user-item {
    padding: 0.65rem 0.85rem;
    cursor: pointer;
    transition: var(--chat-transition);
    border-bottom: 1px solid var(--chat-border-color);
    display: flex;
    align-items: center;
    gap: 0.65rem;
    position: relative;
}

.user-item:hover {
    background: var(--chat-bg-hover);
}

.user-item.active {
    background: rgba(45, 143, 111, 0.12);
    box-shadow: inset 4px 0 0 var(--chat-success);
}

.user-item.active:hover {
    background: rgba(45, 143, 111, 0.16);
}

.user-item.unread {
    background: rgba(74, 111, 165, 0.12);
}

.user-item.unread:hover {
    background: rgba(74, 111, 165, 0.16);
}

.user-item.active.unread {
    background: rgba(45, 143, 111, 0.14);
    box-shadow:
        inset 4px 0 0 var(--chat-success),
        inset 0 0 0 1px rgba(45, 143, 111, 0.18);
}

.user-item.active.unread:hover {
    background: rgba(45, 143, 111, 0.18);
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--chat-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.125rem;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.user-avatar .avatar-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.user-avatar.purchased {
    background: var(--chat-success);
}

.user-item.active .user-avatar {
    box-shadow: 0 0 0 3px rgba(45, 143, 111, 0.22);
}

.user-item.active .user-name {
    color: #1f6f56;
}

/* Status Indicators Container */
.user-status-indicators {
    position: absolute;
    bottom: -2px;
    right: -2px;
    display: flex;
    gap: 2px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid var(--chat-bg-sidebar);
    cursor: help;
    transition: transform 0.2s ease;
}

.status-dot:hover {
    transform: scale(1.2);
}

.status-dot.ai-active {
    background: var(--chat-success);
}

.status-dot.ai-disabled {
    background: var(--chat-text-tertiary);
}

.status-dot.followup {
    background: var(--chat-warning);
}

.status-dot.purchased {
    background: #7c3aed;
}

.status-dot.has-orders {
    background: var(--chat-info);
}

/* Status Tooltip */
.status-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--chat-text-primary);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.6875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
    z-index: 100;
}

.status-dot:hover .status-tooltip {
    opacity: 1;
    visibility: visible;
    bottom: calc(100% + 4px);
}



.user-item-content {
    flex: 1;
    min-width: 0;
}

.user-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.25rem;
    gap: 0.5rem;
}

.user-name-line {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    min-width: 0;
    flex: 1;
}

.user-name {
    font-weight: 600;
    color: var(--chat-text-primary);
    font-size: 0.9375rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.user-state-pills {
    display: inline-flex;
    align-items: center;
    gap: 0.1875rem;
    flex: 0 0 auto;
    min-width: 0;
}

.user-state-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.1875rem;
    height: 17px;
    max-width: 72px;
    padding: 0 0.3125rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.625rem;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
}

.user-state-pill i {
    font-size: 0.5625rem;
    line-height: 1;
}

.user-state-pill span {
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-state-pill.is-purchased {
    background: rgba(45, 143, 111, 0.12);
    border-color: rgba(45, 143, 111, 0.22);
    color: var(--chat-success);
}

.user-state-pill.is-followup {
    background: rgba(223, 169, 75, 0.18);
    border-color: rgba(223, 169, 75, 0.28);
    color: #6a4700;
}

.user-time {
    font-size: 0.75rem;
    color: var(--chat-text-tertiary);
    white-space: nowrap;
    flex: 0 0 auto;
}

.user-channel {
    font-size: 0.75rem;
    color: var(--chat-text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.125rem;
}

.user-last-message {
    font-size: 0.8125rem;
    color: var(--chat-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.25rem;
}

.user-item.unread .user-last-message {
    font-weight: 600;
    color: var(--chat-text-primary);
}

.user-badges {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.badge-sm {
    font-size: 0.6875rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

.badge-ai {
    background: var(--chat-success);
    color: white;
}

.badge-followup {
    background: var(--chat-warning);
    color: #5c3d00;
}

.badge-purchased {
    background: var(--chat-success);
    color: white;
}

.user-tags {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
    margin-top: 0.25rem;
}

.tag-badge {
    font-size: 0.6875rem;
    padding: 2px 6px;
    border-radius: 10px;
    background: var(--chat-bg-app);
    color: var(--chat-text-secondary);
    border: 1px solid var(--chat-border-color);
}

.unread-count {
    position: absolute;
    top: 50%;
    right: 0.85rem;
    transform: translateY(-50%);
    background: rgba(74, 111, 165, 0.15);
    color: var(--chat-primary);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    min-width: 20px;
    text-align: center;
}

/* ========================================
   Main Chat Area
   ======================================== */

.chat-main {
    flex: 1 1 0%;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    min-width: 0;
    background: var(--chat-bg-chat);
}

/* ========================================
   Order Sidebar (Right Panel)
   ======================================== */

.order-sidebar {
    width: 320px;
    flex: 0 0 auto;
    flex-shrink: 0;
    min-width: 320px;
    max-width: 320px;
    background: var(--chat-bg-sidebar);
    border-left: 1px solid var(--chat-border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    transition: width 0.3s ease, min-width 0.3s ease, max-width 0.3s ease;
    min-height: 0;
}

.order-sidebar.collapsed {
    width: 48px;
    min-width: 48px;
    max-width: 48px;
}

.order-sidebar.collapsed .order-sidebar-title,
.order-sidebar.collapsed .order-content {
    display: none;
}

.order-sidebar.collapsed .order-sidebar-header {
    justify-content: center;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem 0.5rem;
}

.order-sidebar.collapsed .order-header-left {
    width: 100%;
    justify-content: center;
}

.order-sidebar.collapsed .btn-collapse-sidebar i {
    transform: rotate(180deg);
}

.order-sidebar.collapsed .order-count-badge {
    min-width: 1.625rem;
    padding: 0.125rem 0.375rem;
    text-align: center;
}

.order-sidebar-header {
    padding: 0.75rem;
    border-bottom: 1px solid var(--chat-border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--chat-header-height);
    background: var(--chat-bg-sidebar);
}

.order-header-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-collapse-sidebar {
    background: none;
    border: none;
    color: var(--chat-text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--chat-border-radius);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.btn-collapse-sidebar:hover {
    background: var(--chat-bg-hover);
    color: var(--chat-primary);
}

.btn-collapse-sidebar i {
    transition: transform 0.3s ease;
}


.order-sidebar-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    color: var(--chat-text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-family-heading, 'Prompt', sans-serif);
}

.order-sidebar-title i {
    color: var(--chat-warning);
}

.order-count-badge {
    background: var(--chat-warning);
    color: #5c3d00;
    padding: 0.25rem 0.625rem;
    border-radius: 12px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.order-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.75rem;
    min-height: 0;
    scrollbar-gutter: stable;
}

.order-content::-webkit-scrollbar {
    width: 6px;
}

.order-content::-webkit-scrollbar-track {
    background: transparent;
}

.order-content::-webkit-scrollbar-thumb {
    background: var(--chat-border-color);
    border-radius: 3px;
}

.order-content::-webkit-scrollbar-thumb:hover {
    background: var(--chat-text-tertiary);
}

/* Order Empty State */
.order-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    text-align: center;
    height: 100%;
}

.order-empty-icon {
    font-size: 3rem;
    color: var(--chat-text-tertiary);
    margin-bottom: 1rem;
    opacity: 0.5;
}

.order-empty-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--chat-text-primary);
    margin-bottom: 0.5rem;
}

.order-empty-description {
    font-size: 0.8125rem;
    color: var(--chat-text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Order Card */
.order-card {
    background: var(--chat-bg-app);
    border: 1px solid var(--chat-border-color);
    border-radius: var(--chat-border-radius);
    padding: 0.875rem;
    margin-bottom: 0.75rem;
    transition: var(--chat-transition);
    cursor: pointer;
}

.order-card:hover {
    border-color: var(--chat-primary);
    box-shadow: var(--chat-shadow);
}

.order-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.order-status-badge {
    font-size: 0.6875rem;
    padding: 3px 8px;
    border-radius: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

.order-status-badge.pending {
    background: var(--chat-warning);
    color: #5c3d00;
}

.order-status-badge.confirmed {
    background: var(--chat-info);
    color: white;
}

.order-status-badge.shipped {
    background: var(--chat-primary);
    color: white;
}

.order-status-badge.completed {
    background: var(--chat-success);
    color: white;
}

.order-status-badge.cancelled {
    background: var(--chat-danger);
    color: white;
}

.order-date {
    font-size: 0.6875rem;
    color: var(--chat-text-tertiary);
}

.order-items {
    margin-bottom: 0.75rem;
}

.order-item {
    font-size: 0.8125rem;
    color: var(--chat-text-primary);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: baseline;
    gap: 0.375rem;
}

.order-item-name {
    flex: 1;
    font-weight: 500;
}

.order-item-quantity {
    color: var(--chat-text-secondary);
    font-size: 0.75rem;
}

.order-item-price {
    color: var(--chat-primary);
    font-weight: 600;
    white-space: nowrap;
}

.order-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
    border-top: 1px solid var(--chat-border-color);
    font-weight: 600;
}

.order-total.order-shipping {
    font-weight: 500;
    color: var(--chat-text-secondary);
}

.order-total.order-shipping .order-total-amount {
    color: var(--chat-text-primary);
    font-size: 0.9375rem;
}

.order-total.order-shipping .order-total-amount.free {
    color: var(--chat-success);
    font-weight: 600;
}

.order-total-label {
    font-size: 0.875rem;
    color: var(--chat-text-secondary);
}

.order-total-amount {
    font-size: 1rem;
    color: var(--chat-success);
}

.order-meta {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--chat-border-color);
    font-size: 0.75rem;
    color: var(--chat-text-secondary);
    line-height: 1.5;
}

.order-meta-item {
    display: flex;
    align-items: flex-start;
    gap: 0.375rem;
    margin-bottom: 0.25rem;
}

.order-meta-item i {
    margin-top: 2px;
    font-size: 0.6875rem;
}

.order-meta-label {
    font-weight: 600;
    min-width: 65px;
}

.order-actions {
    display: flex;
    gap: 0.375rem;
    margin-top: 0.75rem;
}

.btn-order-action {
    flex: 1;
    background: none;
    border: 1px solid var(--chat-border-color);
    color: var(--chat-text-secondary);
    min-height: 44px;
    padding: 0.5rem 0.625rem;
    border-radius: var(--chat-border-radius);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--chat-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
}

.btn-order-action:hover {
    background: var(--chat-bg-hover);
    border-color: var(--chat-primary);
    color: var(--chat-primary);
}

.btn-order-action.btn-delete {
    border-color: var(--chat-danger);
    color: var(--chat-danger);
}

.btn-order-action.btn-delete:hover {
    background: var(--chat-danger);
    color: white;
}

/* Order Badge in User Item */
.user-item .badge-has-order {
    background: var(--chat-warning);
    color: var(--chat-text-primary);
}

/* Order Form in Modal */
.order-form-group {
    margin-bottom: 1rem;
}

.order-form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--chat-text-primary);
    margin-bottom: 0.5rem;
}

.order-form-control {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--chat-border-color);
    border-radius: var(--chat-border-radius);
    font-size: 0.875rem;
    color: var(--chat-text-primary);
    background: var(--chat-bg-app);
    transition: var(--chat-transition);
    font-family: var(--font-family-base, 'Prompt', sans-serif);
}

.order-form-control:focus {
    outline: none;
    border-color: var(--chat-primary);
    background: white;
}

.order-item-edit {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.5rem;
    padding: 0.5rem;
    background: var(--chat-bg-app);
    border-radius: var(--chat-border-radius);
}

.order-item-edit input,
.order-item-edit select {
    flex: 1;
    min-height: 44px;
    padding: 0.375rem 0.5rem;
    border: 1px solid var(--chat-border-color);
    border-radius: var(--chat-border-radius);
    font-size: 0.8125rem;
    background: white;
}

.order-item-edit button {
    background: var(--chat-danger);
    border: none;
    color: white;
    min-width: 44px;
    min-height: 44px;
    padding: 0.5rem;
    border-radius: var(--chat-border-radius);
    cursor: pointer;
    font-size: 0.75rem;
}

.btn-add-item {
    width: 100%;
    background: var(--chat-primary);
    border: none;
    color: white;
    min-height: 44px;
    padding: 0.5rem;
    border-radius: var(--chat-border-radius);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: var(--chat-transition);
}

.order-error-state .order-retry-action {
    max-width: 180px;
    margin: 0.75rem auto 0;
}

.btn-add-item:hover {
    background: var(--chat-primary-dark);
}

/* Chat Header */
.chat-header {
    height: var(--chat-header-height);
    background: var(--chat-bg-sidebar);
    border-bottom: 1px solid var(--chat-border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.5rem;
    flex-shrink: 0;
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.btn-toggle-sidebar {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--chat-text-secondary);
    cursor: pointer;
    padding: 0.65rem;
    border-radius: var(--chat-border-radius);
    transition: var(--chat-transition);
    min-width: 44px;
    min-height: 44px;
}

.btn-toggle-sidebar:hover {
    background: var(--chat-bg-hover);
    color: var(--chat-text-primary);
}

.chat-user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--chat-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.chat-avatar.purchased {
    background: var(--chat-success);
}

.chat-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.chat-avatar .avatar-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.chat-user-details {
    flex: 1;
    min-width: 0;
}

.chat-user-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--chat-text-primary);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-user-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8125rem;
    color: var(--chat-text-secondary);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.meta-item i {
    font-size: 0.75rem;
}

.chat-header-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chat-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chat-actions--mobile .dropdown {
    display: flex;
}

.chat-actions-menu {
    border-radius: var(--chat-border-radius);
    border: 1px solid var(--chat-border-color);
    box-shadow: var(--chat-shadow-lg);
    padding: 0.35rem;
    background: var(--chat-bg-sidebar);
}

.chat-actions-menu .dropdown-item {
    border-radius: 8px;
    padding: 0.55rem 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--chat-text-primary);
}

.chat-actions-menu .dropdown-item i {
    width: 18px;
    text-align: center;
    color: var(--chat-text-secondary);
}

.chat-actions-menu .dropdown-item:hover,
.chat-actions-menu .dropdown-item:focus {
    background: var(--chat-bg-hover);
    color: var(--chat-text-primary);
}

.chat-actions-menu .dropdown-item.text-danger i {
    color: var(--chat-danger);
}

.chat-actions-menu .dropdown-divider {
    margin: 0.35rem 0;
}

.btn-header-action {
    background: none;
    border: none;
    color: var(--chat-text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--chat-border-radius);
    transition: var(--chat-transition);
    font-size: 1rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-header-action:hover {
    background: var(--chat-bg-hover);
    color: var(--chat-text-primary);
}

.btn-header-action.is-active {
    background: rgba(74, 111, 165, 0.12);
    color: var(--chat-primary);
}

.btn-header-action.btn-danger:hover {
    background: var(--chat-danger);
    color: white;
}

.header-divider {
    width: 1px;
    height: 24px;
    background: var(--chat-border-color);
    margin: 0 0.5rem;
}

/* Messages Wrapper */
.messages-wrapper {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    background: var(--chat-bg-app);
    min-height: 0;
    scrollbar-gutter: stable;
}

/* ========================================
   Debug Panel (Hidden by default)
   ======================================== */

.chat-debug-panel {
    border-top: 1px solid var(--chat-border-color);
    background: var(--chat-bg-sidebar);
    padding: 0.6rem 0.85rem 0.75rem;
    flex-shrink: 0;
}

.chat-debug-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    color: var(--chat-text-secondary);
}

.chat-debug-title {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--chat-text-primary);
}

.chat-debug-actions {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.chat-debug-btn {
    border: 1px solid var(--chat-border-color);
    background: var(--chat-bg-app);
    color: var(--chat-text-secondary);
    border-radius: 6px;
    padding: 0.2rem 0.45rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--chat-transition);
}

.chat-debug-btn:hover {
    color: var(--chat-primary);
    border-color: rgba(74, 111, 165, 0.4);
}

.chat-debug-body {
    background: var(--chat-bg-app);
    border: 1px solid var(--chat-border-color);
    border-radius: 10px;
    padding: 0.6rem 0.75rem;
    font-size: 0.75rem;
    line-height: 1.4;
    max-height: 180px;
    overflow: auto;
    white-space: pre-wrap;
    color: var(--chat-text-secondary);
    margin: 0;
}

@supports not (scrollbar-gutter: stable) {
    .messages-wrapper {
        overflow-y: scroll;
    }
}

.messages-wrapper::-webkit-scrollbar {
    width: 8px;
}

.messages-wrapper::-webkit-scrollbar-track {
    background: transparent;
}

.messages-wrapper::-webkit-scrollbar-thumb {
    background: var(--chat-border-color);
    border-radius: 4px;
}

.messages-wrapper::-webkit-scrollbar-thumb:hover {
    background: var(--chat-text-tertiary);
}

.messages-container {
    padding: 1rem;
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--chat-text-secondary);
    padding: 1.5rem;
}

.empty-icon {
    font-size: 4rem;
    color: var(--chat-primary);
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h5 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--chat-text-primary);
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 0.875rem;
    color: var(--chat-text-secondary);
    max-width: 400px;
}

/* Message */
.message {
    display: flex;
    margin-bottom: 1rem;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.message.admin,
.message.assistant,
.message.followup {
    justify-content: flex-end;
}

.message-bubble {
    max-width: min(70%, 520px);
    padding: 0.625rem 0.875rem;
    border-radius: var(--chat-border-radius);
    border: 1px solid transparent;
}

.message.user .message-bubble {
    background: var(--chat-bg-message-user);
    color: var(--chat-text-primary);
    border-color: rgba(74, 111, 165, 0.08);
    border-bottom-left-radius: 4px;
}

.message.admin .message-bubble {
    background: var(--chat-bg-message-admin);
    color: var(--chat-text-white);
    border-bottom-right-radius: 4px;
}

.message.failed .message-bubble {
    border-color: rgba(220, 53, 69, 0.45);
    box-shadow: 0 0 0 1px rgba(220, 53, 69, 0.08);
}

.message.assistant .message-bubble {
    background: var(--chat-bg-message-assistant);
    color: var(--chat-text-primary);
    border-bottom-right-radius: 4px;
    border: 1px solid var(--chat-border-color);
}

.message.followup .message-bubble {
    background: var(--chat-bg-message-followup);
    color: var(--chat-text-primary);
    border-bottom-right-radius: 4px;
    border: 1px solid rgba(223, 169, 75, 0.35);
}

.message-header {
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.message.user .message-header {
    color: var(--chat-text-secondary);
}

.message.admin .message-header,
.message.assistant .message-header,
.message.followup .message-header {
    color: var(--chat-text-tertiary);
}

.message-content {
    font-size: 0.9375rem;
    line-height: 1.4;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.message-time {
    font-size: 0.6875rem;
    margin-top: 0.25rem;
    opacity: 0.7;
}

.message.user .message-time {
    color: var(--chat-text-tertiary);
}

.message.admin .message-time,
.message.assistant .message-time,
.message.followup .message-time {
    color: var(--chat-text-secondary);
}

/* Date separator */
.message-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 0.75rem 0;
    color: var(--chat-text-tertiary);
    font-size: 0.8125rem;
}

.message-separator::before,
.message-separator::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--chat-border-color);
    opacity: 0.6;
}

.message-images {
    margin-top: 0.5rem;
    display: grid;
    gap: 0.5rem;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.message-image {
    border-radius: var(--chat-border-radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--chat-transition);
}

.message-image:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.message-image img {
    width: 100%;
    height: auto;
    display: block;
}

.message-attachments {
    display: grid;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.message-media audio,
.message-media video {
    width: 100%;
    max-width: 360px;
    display: block;
}

.message-media video {
    border-radius: var(--chat-border-radius);
    background: #111827;
}

.message-file {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-height: 44px;
    padding: 0.5rem 0.65rem;
    border-radius: var(--chat-border-radius);
    background: rgba(255, 255, 255, 0.16);
    color: inherit;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.24);
}

.message.user .message-file,
.message.assistant .message-file,
.message.followup .message-file {
    background: var(--chat-bg-app);
    border-color: var(--chat-border-color);
    color: var(--chat-text-primary);
}

.message-file:hover {
    color: inherit;
    text-decoration: none;
    border-color: var(--chat-primary);
}

.message-failure {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(220, 53, 69, 0.25);
    color: #FEE2E2;
    font-size: 0.8125rem;
}

.message-retry-btn {
    min-height: 36px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--chat-border-radius);
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.55rem;
    cursor: pointer;
}

.message-retry-btn:hover {
    background: rgba(255, 255, 255, 0.22);
}



/* Typing indicator */
#typingIndicator .message-content {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--chat-primary);
    display: inline-block;
    animation: typing-blink 1.2s infinite ease-in-out;
}

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

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

@keyframes typing-blink {

    0%,
    80%,
    100% {
        transform: scale(0.6);
        opacity: 0.6;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ========================================
   Message Input Area (Fixed at bottom)
   ======================================== */

.message-input-area {
    background: var(--chat-bg-sidebar);
    border-top: 1px solid var(--chat-border-color);
    padding: 0.5rem 0.65rem;
    flex-shrink: 0;
    padding-bottom: calc(0.5rem + env(safe-area-inset-bottom, 0px));
}

.message-input-area.is-sending {
    opacity: 0.86;
}

.message-input-container {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    background: var(--chat-bg-app);
    border-radius: 20px;
    padding: 0.5rem;
}

.btn-input-action {
    background: none;
    border: none;
    color: var(--chat-text-secondary);
    cursor: pointer;
    padding: 0.65rem;
    border-radius: 50%;
    transition: var(--chat-transition);
    font-size: 1.125rem;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-input-action:hover {
    background: var(--chat-bg-hover);
    color: var(--chat-primary);
}

.message-input-wrapper {
    flex: 1;
    max-height: 120px;
    overflow-y: auto;
}

.message-input-wrapper::-webkit-scrollbar {
    width: 4px;
}

.message-input-wrapper::-webkit-scrollbar-thumb {
    background: var(--chat-border-color);
    border-radius: 2px;
}

.message-input {
    width: 100%;
    border: none;
    background: transparent;
    resize: none;
    outline: none;
    font-size: 0.9375rem;
    line-height: 1.4;
    color: var(--chat-text-primary);
    padding: 0.5rem 0;
    font-family: var(--font-family-base, 'Prompt', sans-serif);
}

.message-input::placeholder {
    color: var(--chat-text-tertiary);
}

.btn-send {
    background: var(--chat-primary);
    border: none;
    color: white;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--chat-transition);
    font-size: 1rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-send:hover {
    background: var(--chat-primary-dark);
    transform: scale(1.05);
}

.btn-send:disabled,
.btn-send[aria-disabled="true"] {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.btn-send:active {
    transform: scale(0.95);
}

.message-input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--chat-text-tertiary);
}

.char-counter {
    font-weight: 500;
}

.input-hints {
    display: none;
}

/* ========================================
   Modals
   ======================================== */

.modal-content {
    border-radius: var(--chat-border-radius);
    border: none;
    box-shadow: var(--chat-shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--chat-border-color);
    padding: 0.75rem;
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.modal-body {
    padding: 0.75rem;
}

.modal-footer {
    border-top: 1px solid var(--chat-border-color);
    padding: 0.75rem;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    background: var(--chat-primary-light);
    color: var(--chat-primary);
    border-radius: 12px;
    font-size: 0.8125rem;
    font-weight: 500;
}

.tag-item .btn-remove-tag {
    background: none;
    border: none;
    color: var(--chat-primary);
    cursor: pointer;
    padding: 0;
    font-size: 0.875rem;
    line-height: 1;
    transition: var(--chat-transition);
}

.tag-item .btn-remove-tag:hover {
    color: var(--chat-danger);
}

.template-list {
    max-height: 400px;
    overflow-y: auto;
}

.template-item {
    padding: 0.75rem;
    border: 1px solid var(--chat-border-color);
    border-radius: var(--chat-border-radius);
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: var(--chat-transition);
}

.template-item:hover {
    background: var(--chat-bg-hover);
    border-color: var(--chat-primary);
}

.template-title {
    font-weight: 600;
    color: var(--chat-text-primary);
    margin-bottom: 0.25rem;
}

.template-content {
    font-size: 0.8125rem;
    color: var(--chat-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.template-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.template-actions .btn {
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
}

.emoji-picker {
    position: absolute;
    z-index: 1060;
    background: #fff;
    border: 1px solid var(--chat-border-color);
    border-radius: 10px;
    box-shadow: var(--chat-shadow-lg);
    padding: 0.5rem;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.25rem;
}

.emoji-picker button {
    border: none;
    background: transparent;
    font-size: 1.1rem;
    padding: 0.3rem;
    border-radius: 6px;
    cursor: pointer;
}

.emoji-picker button:hover {
    background: var(--chat-bg-hover);
}

/* ========================================
   Sidebar Overlay (Mobile)
   ======================================== */

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1040;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.show {
    display: block;
    opacity: 1;
}

.mobile-sheet-backdrop,
.mobile-chat-bar,
.mobile-context-summary,
.mobile-chat-sheet,
.mobile-composer-tray,
.btn-input-action--mobile {
    display: none;
}

.mobile-state-chip {
    display: inline-flex;
    align-items: center;
    min-height: 20px;
    padding: 0 7px;
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 600;
    line-height: 1;
    border: 1px solid transparent;
    white-space: nowrap;
}

.mobile-state-chip.is-ai-on {
    background: rgba(45, 143, 111, 0.12);
    color: var(--chat-success);
}

.mobile-state-chip.is-ai-off,
.mobile-state-chip.is-neutral {
    background: rgba(139, 146, 163, 0.14);
    color: var(--chat-text-secondary);
}

.mobile-state-chip.is-followup {
    background: rgba(223, 169, 75, 0.22);
    color: #5c3d00;
}

.mobile-state-chip.is-purchased {
    background: rgba(74, 111, 165, 0.14);
    color: var(--chat-primary-dark);
}

.mobile-state-chip.is-order,
.mobile-state-chip.is-unread {
    background: rgba(61, 127, 193, 0.12);
    color: var(--chat-info);
}

.mobile-tag-pill {
    border: 1px solid var(--chat-border-color);
    background: var(--chat-bg-app);
    border-radius: 999px;
    font-size: 0.75rem;
    padding: 0.375rem 0.625rem;
    color: var(--chat-text-secondary);
}

.mobile-tag-pill.is-active {
    border-color: var(--chat-primary);
    color: var(--chat-primary);
    background: rgba(74, 111, 165, 0.08);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (min-width: 992px) {
    .input-hints {
        display: block;
    }
}

@media (min-width: 992px) and (max-width: 1199.98px) {
    :root {
        --chat-sidebar-width: 340px;
    }
}

@media (min-width: 768px) and (max-width: 991.98px) {
    :root {
        --chat-sidebar-width: 320px;
    }
}

@media (max-width: 991.98px) {
    .order-sidebar {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        height: 100dvh;
        z-index: 1042;
        transition: right 0.3s ease;
        box-shadow: var(--chat-shadow-lg);
        width: 92%;
        min-width: 0;
        max-width: 360px;
    }

    .order-sidebar-header {
        padding-top: calc(1rem + env(safe-area-inset-top, 0px));
    }

    .order-sidebar.show {
        right: 0;
    }

    .message-bubble {
        max-width: min(85%, 520px);
    }
}

@media (max-width: 767.98px) {
    .page-chat {
        font-family: 'Sarabun', 'Inter', sans-serif;
    }

    .page-chat .app-navbar,
    .page-chat .chat-sidebar,
    .page-chat .chat-header,
    .page-chat .order-sidebar,
    .page-chat #sidebarOverlay,
    .page-chat #orderSidebarOverlay,
    .page-chat .btn-input-action:not(.btn-input-action--mobile) {
        display: none !important;
    }

    .page-chat .app-content {
        max-width: none;
        width: 100%;
        padding: 0;
    }

    .chat-app-wrapper,
    .chat-app-wrapper > .container-fluid,
    .chat-app,
    .chat-main {
        min-height: 100dvh;
        border-radius: 0;
        box-shadow: none;
        background: #f3f5f9;
    }

    .chat-app {
        position: relative;
        overflow: hidden;
    }

    .chat-main {
        position: relative;
    }

    .mobile-sheet-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(16, 22, 32, 0.42);
        backdrop-filter: blur(3px);
        z-index: 1044;
        opacity: 0;
        transition: opacity 0.2s ease;
    }

    .mobile-sheet-backdrop.show {
        opacity: 1;
    }

    .mobile-chat-bar {
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 0.38rem;
        padding: calc(0.42rem + env(safe-area-inset-top, 0px)) 0.55rem 0.42rem;
        border-bottom: 1px solid rgba(225, 229, 239, 0.9);
        background: rgba(255, 255, 255, 0.94);
        backdrop-filter: blur(12px);
        z-index: 5;
    }

    .mobile-chat-bar__btn,
    .mobile-chat-bar__icon {
        border: 1px solid var(--chat-border-color);
        background: #fff;
        color: var(--chat-text-primary);
        border-radius: 10px;
        min-height: 36px;
        min-width: 36px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.375rem;
        padding: 0 0.6rem;
        font-size: 0.78rem;
        font-weight: 600;
    }

    .mobile-chat-bar__icon {
        padding: 0;
        width: 36px;
    }

    .mobile-chat-bar__actions {
        display: inline-flex;
        gap: 0.28rem;
    }

    .mobile-chat-bar__title {
        min-width: 0;
        text-align: center;
        font-size: 0.82rem;
        font-weight: 700;
        color: var(--chat-text-primary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-context-summary {
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 0.45rem;
        width: calc(100% - 1rem);
        margin: 0.35rem auto 0;
        padding: 0.48rem 0.6rem;
        border: 1px solid rgba(225, 229, 239, 0.9);
        border-radius: 10px;
        background: #fff;
        box-shadow: 0 6px 18px rgba(30, 36, 48, 0.06);
        text-align: left;
    }

    .mobile-context-summary__avatar,
    .mobile-overview-avatar,
    .mobile-user-item__avatar {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--chat-primary);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        flex-shrink: 0;
    }

    .mobile-overview-avatar {
        width: 40px;
        height: 40px;
        border-radius: 12px;
    }

    .mobile-context-summary__avatar img,
    .mobile-overview-avatar img,
    .mobile-user-item__avatar img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

    .mobile-context-summary__body {
        min-width: 0;
    }

    .mobile-context-summary__name {
        font-size: 0.82rem;
        font-weight: 700;
        color: var(--chat-text-primary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-context-summary__meta {
        margin-top: 0.05rem;
        font-size: 0.7rem;
        color: var(--chat-text-secondary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-context-summary__chips {
        margin-top: 0.25rem;
        display: flex;
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .mobile-context-summary__arrow {
        color: var(--chat-text-tertiary);
        font-size: 0.8125rem;
    }

    .messages-wrapper {
        background: linear-gradient(180deg, #f7f9fc 0%, #eef2f7 100%);
    }

    .messages-container {
        padding: 0.48rem 0.58rem 0.75rem;
    }

    .message {
        margin-bottom: 0.45rem;
    }

    .message-bubble {
        max-width: min(90%, 520px);
        padding: 0.42rem 0.52rem;
        border-radius: 10px;
    }

    .message-header {
        font-size: 0.6875rem;
        margin-bottom: 0.1875rem;
    }

    .message-content {
        font-size: 0.83rem;
        line-height: 1.32;
    }

    .message-time,
    .message-separator {
        font-size: 0.6875rem;
    }

    .chat-debug-panel {
        display: none;
    }

    .message-input-area {
        position: relative;
        padding: 0.4rem 0.55rem calc(0.4rem + env(safe-area-inset-bottom, 0px));
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(12px);
    }

    .mobile-composer-tray {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.35rem;
        margin-bottom: 0.35rem;
    }

    .mobile-composer-tray[hidden] {
        display: none;
    }

    .mobile-composer-tool {
        border: 1px solid var(--chat-border-color);
        border-radius: 10px;
        background: #fff;
        color: var(--chat-text-primary);
        min-height: 36px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.4rem;
        font-size: 0.78rem;
        font-weight: 600;
    }

    .message-input-container {
        align-items: center;
        gap: 0.28rem;
        border-radius: 11px;
        padding: 0.28rem;
    }

    .btn-input-action--mobile {
        display: inline-flex;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: #fff;
        border: 1px solid var(--chat-border-color);
        color: var(--chat-text-primary);
        font-size: 0.9375rem;
    }

    .btn-input-action--mobile.is-active {
        background: rgba(74, 111, 165, 0.1);
        color: var(--chat-primary);
    }

    .message-input-wrapper {
        max-height: 104px;
    }

    .message-input {
        font-size: 16px;
        padding: 0.375rem 0;
    }

    .btn-send {
        width: 36px;
        height: 36px;
    }

    .message-input-footer {
        margin-top: 0.375rem;
        font-size: 0.6875rem;
    }

    .char-counter {
        opacity: 0;
        transition: opacity 0.2s ease;
    }

    .char-counter.is-visible {
        opacity: 1;
    }

    .mobile-chat-sheet {
        display: flex;
        flex-direction: column;
        position: fixed;
        left: 0;
        right: 0;
        background: #fff;
        z-index: 1045;
        box-shadow: 0 -10px 30px rgba(16, 22, 32, 0.15);
    }

    .mobile-chat-sheet--inbox {
        top: 0;
        bottom: 0;
        transform: translateY(-100%);
        transition: transform 0.22s ease;
        box-shadow: 0 10px 30px rgba(16, 22, 32, 0.15);
    }

    .mobile-chat-sheet--context,
    .mobile-chat-sheet--admin {
        bottom: 0;
        border-radius: 16px 16px 0 0;
        max-height: min(72dvh, 660px);
        transform: translateY(100%);
        transition: transform 0.22s ease;
    }

    .mobile-chat-sheet.is-open {
        transform: translateY(0);
    }

    .mobile-sheet-handle {
        width: 36px;
        height: 4px;
        border-radius: 999px;
        background: rgba(139, 146, 163, 0.35);
        margin: 0.42rem auto 0;
    }

    .mobile-sheet-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 0.5rem;
        padding: calc(0.55rem + env(safe-area-inset-top, 0px)) 0.7rem 0.48rem;
        border-bottom: 1px solid rgba(225, 229, 239, 0.9);
    }

    .mobile-sheet-header--context {
        padding-top: 0.625rem;
    }

    .mobile-sheet-eyebrow {
        font-size: 0.6875rem;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--chat-text-tertiary);
    }

    .mobile-sheet-title {
        margin: 0.125rem 0 0;
        font-size: 0.86rem;
    }

    .mobile-sheet-close {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        border: 1px solid var(--chat-border-color);
        background: #fff;
        color: var(--chat-text-primary);
    }

    .mobile-sheet-search {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        margin: 0.75rem 0.875rem 0;
        padding: 0 0.75rem;
        border: 1px solid var(--chat-border-color);
        border-radius: 14px;
        background: #f7f9fc;
        min-height: 42px;
    }

    .mobile-sheet-search i {
        color: var(--chat-text-tertiary);
        font-size: 0.8125rem;
    }

    .mobile-sheet-search input,
    .mobile-tag-input-row input,
    .mobile-note-editor textarea {
        width: 100%;
        border: none;
        background: transparent;
        outline: none;
        color: var(--chat-text-primary);
        font-size: 0.8125rem;
    }

    .mobile-sheet-filters {
        padding: 0.5rem 0.625rem 0;
        display: grid;
        gap: 0.375rem;
    }

    .mobile-filter-row {
        display: flex;
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .mobile-filter-row--pages {
        display: block;
    }

    .mobile-filter-row--pages .page-filter-open {
        width: 100%;
        background: #fff;
    }

    .mobile-filter-row--pages .page-filter-clear {
        margin-top: 0.25rem;
        min-height: 1.75rem;
    }

    .mobile-filter-chip {
        min-height: 28px;
        border-radius: 999px;
        border: 1px solid var(--chat-border-color);
        background: #fff;
        padding: 0 0.55rem;
        font-size: 0.71875rem;
        color: var(--chat-text-secondary);
    }

    .mobile-filter-chip.active {
        background: rgba(74, 111, 165, 0.1);
        color: var(--chat-primary);
        border-color: rgba(74, 111, 165, 0.3);
    }

    .mobile-filter-empty {
        font-size: 0.75rem;
        color: var(--chat-text-tertiary);
    }

    .mobile-sheet-count {
        padding: 0.625rem 0.875rem;
        font-size: 0.75rem;
        color: var(--chat-text-secondary);
    }

    .mobile-user-list,
    .mobile-context-panels {
        flex: 1;
        overflow: auto;
        padding: 0 0.625rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
    }

    .mobile-user-list .user-list-footer {
        margin: 0.25rem 0 0.5rem;
        padding: 0.75rem 0.25rem;
        border-top: 0;
        background: transparent;
    }

    .mobile-context-panels {
        padding: 0.75rem 0.875rem calc(0.875rem + env(safe-area-inset-bottom, 0px));
    }

    .mobile-user-item {
        display: grid;
        grid-template-columns: 40px minmax(0, 1fr) auto;
        gap: 0.625rem;
        align-items: center;
        min-height: 64px;
        padding: 0.625rem 0.5rem;
        border-bottom: 1px solid rgba(225, 229, 239, 0.7);
    }

    .mobile-user-item.active {
        background: rgba(45, 143, 111, 0.12);
        border-radius: 10px;
        border-bottom-color: transparent;
        box-shadow: inset 3px 0 0 var(--chat-success);
    }

    .mobile-user-item.active .mobile-user-item__avatar {
        box-shadow: 0 0 0 3px rgba(45, 143, 111, 0.2);
    }

    .mobile-user-item.active .mobile-user-item__name {
        color: #1f6f56;
    }

    .mobile-user-item__body,
    .mobile-user-item__top {
        min-width: 0;
    }

    .mobile-user-item__top {
        display: flex;
        align-items: baseline;
        justify-content: space-between;
        gap: 0.5rem;
    }

    .mobile-user-item__name,
    .mobile-user-item__message {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-user-item__name {
        font-size: 0.8125rem;
        font-weight: 700;
        color: var(--chat-text-primary);
    }

    .mobile-user-item__time,
    .mobile-user-item__meta {
        font-size: 0.6875rem;
        color: var(--chat-text-tertiary);
    }

    .mobile-user-item__message {
        margin-top: 0.125rem;
        font-size: 0.75rem;
        color: var(--chat-text-secondary);
    }

    .mobile-user-item__chips {
        margin-top: 0.3125rem;
        display: flex;
        gap: 0.25rem;
        flex-wrap: wrap;
    }

    .mobile-user-item__unread {
        min-width: 22px;
        min-height: 22px;
        border-radius: 999px;
        background: rgba(74, 111, 165, 0.14);
        color: var(--chat-primary);
        font-size: 0.75rem;
        font-weight: 700;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0 0.35rem;
    }

    .mobile-context-tabs {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0.375rem;
        padding: 0.5rem 0.875rem 0;
    }

    .mobile-context-tab {
        min-height: 34px;
        border-radius: 999px;
        border: 1px solid var(--chat-border-color);
        background: #fff;
        color: var(--chat-text-secondary);
        font-size: 0.75rem;
        font-weight: 700;
    }

    .mobile-context-tab.active {
        background: var(--chat-primary);
        color: #fff;
        border-color: var(--chat-primary);
    }

    .mobile-context-panel {
        display: none;
    }

    .mobile-context-panel.active {
        display: block;
    }

    .mobile-context-card {
        border: 1px solid rgba(225, 229, 239, 0.9);
        border-radius: 16px;
        background: #fff;
        padding: 0.75rem;
        margin-bottom: 0.625rem;
    }

    .mobile-overview-empty {
        font-size: 0.8125rem;
        color: var(--chat-text-secondary);
    }

    .mobile-overview-profile {
        display: flex;
        align-items: center;
        gap: 0.625rem;
    }

    .mobile-overview-name {
        font-size: 0.875rem;
        font-weight: 700;
    }

    .mobile-overview-sub {
        font-size: 0.75rem;
        color: var(--chat-text-secondary);
    }

    .mobile-overview-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
        margin-top: 0.75rem;
    }

    .mobile-overview-stat {
        border-radius: 12px;
        background: #f7f9fc;
        padding: 0.5rem;
    }

    .mobile-overview-stat span {
        display: block;
        font-size: 0.6875rem;
        color: var(--chat-text-tertiary);
    }

    .mobile-overview-stat strong {
        display: block;
        margin-top: 0.2rem;
        font-size: 0.9375rem;
        color: var(--chat-text-primary);
    }

    .mobile-overview-actions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.5rem;
        margin-top: 0.75rem;
    }

    .mobile-action-btn {
        min-height: 40px;
        border-radius: 12px;
        border: 1px solid var(--chat-border-color);
        background: #fff;
        color: var(--chat-text-primary);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.4rem;
        font-size: 0.75rem;
        font-weight: 700;
        padding: 0 0.75rem;
    }

    .mobile-action-btn.is-active,
    .mobile-action-btn--primary {
        background: var(--chat-primary);
        border-color: var(--chat-primary);
        color: #fff;
    }

    .mobile-action-btn--danger {
        color: var(--chat-danger);
        border-color: rgba(210, 85, 90, 0.3);
    }

    .mobile-action-btn.is-disabled,
    .mobile-action-btn:disabled {
        opacity: 0.55;
    }

    .mobile-note-editor {
        margin-top: 0.75rem;
        display: grid;
        gap: 0.5rem;
    }

    .mobile-note-editor label,
    .mobile-context-section-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 0.75rem;
        font-weight: 700;
        color: var(--chat-text-secondary);
    }

    .mobile-note-editor textarea {
        min-height: 92px;
        border: 1px solid var(--chat-border-color);
        border-radius: 12px;
        padding: 0.625rem 0.75rem;
        resize: vertical;
        background: #f9fafc;
    }

    .mobile-note-editor__footer {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 0.5rem;
        font-size: 0.6875rem;
        color: var(--chat-text-tertiary);
    }

    .mobile-tag-list {
        display: flex;
        flex-wrap: wrap;
        gap: 0.375rem;
    }

    .mobile-tag-input-row {
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 0.5rem;
        margin: 0.625rem 0;
    }

    .mobile-tag-input-row input {
        min-height: 40px;
        border: 1px solid var(--chat-border-color);
        border-radius: 12px;
        background: #f9fafc;
        padding: 0 0.75rem;
    }

    .mobile-admin-links {
        display: grid;
        gap: 0.5rem;
        padding: 0.75rem 0.875rem calc(0.875rem + env(safe-area-inset-bottom, 0px));
    }

    .mobile-admin-link {
        min-height: 44px;
        border-radius: 14px;
        border: 1px solid rgba(225, 229, 239, 0.9);
        background: #fff;
        color: var(--chat-text-primary);
        display: flex;
        align-items: center;
        gap: 0.625rem;
        padding: 0 0.875rem;
        text-decoration: none;
        font-size: 0.8125rem;
        font-weight: 700;
    }

    .mobile-admin-link--danger {
        color: var(--chat-danger);
    }
}

@media (max-width: 575.98px) {
    :root {
        --chat-sidebar-width: 100%;
    }

    .page-chat .app-content {
        padding: 0;
    }

    .messages-container {
        padding: 0.75rem;
    }

    .message-bubble {
        max-width: min(90%, 520px);
    }

    .filter-panel {
        max-height: 45vh;
        overflow-y: auto;
    }

}

/* ========================================
   Print Styles
   ======================================== */

@media print {

    .chat-sidebar,
    .chat-header,
    .message-input-area {
        display: none;
    }

    .chat-main {
        width: 100%;
    }

    .messages-wrapper {
        overflow: visible;
    }
}