/* Cartable — follows project theme (light/dark via data-bs-theme) */

.cartable-standalone-shell,
.cartable-app {
    --cb-accent: #004f22;
    --cb-accent-hover: #066a30;
    --cb-accent-dim: rgba(0, 79, 34, 0.12);
    --cb-danger: #dc3545;
    --cb-info: #0d6efd;
    --cb-letter: #6f42c1;
    --cb-task: #fd7e14;

    /* light defaults */
    --cb-bg: #f4f6f5;
    --cb-surface: #ffffff;
    --cb-surface-2: #f0f2f1;
    --cb-border: #dde3df;
    --cb-text: #2c3330;
    --cb-muted: #6e6b7b;
    --cb-sent: #e6f4ea;
    --cb-received: #ffffff;
    --cb-online: #2563eb;
}

.cartable-standalone-shell {
    min-height: 100dvh;
    height: 100dvh;
    max-height: 100dvh;
    color-scheme: light;
    background: var(--cb-bg);
    direction: rtl;
    font-family: "IRANSansX", Tahoma, sans-serif;
    color: var(--cb-text);
    overflow: hidden;
}

.cartable-standalone-shell[data-bs-theme="dark"],
[data-bs-theme="dark"] .cartable-app {
    --cb-bg: #0d1117;
    --cb-surface: #161b22;
    --cb-surface-2: #1c2128;
    --cb-border: #30363d;
    --cb-text: #e6edf3;
    --cb-muted: #8b949e;
    --cb-accent: #3d9b5f;
    --cb-accent-hover: #4aad6e;
    --cb-accent-dim: rgba(61, 155, 95, 0.18);
    --cb-sent: #1a4d2e;
    --cb-received: #21262d;
    --cb-danger: #f85149;
    --cb-info: #58a6ff;
    --cb-online: #58a6ff;
    --cb-letter: #a371f7;
    --cb-task: #f0883e;
    color-scheme: dark;
}

[data-bs-theme="dark"] .cartable-item-chip.guest {
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.14);
}

html:has(.cartable-standalone-shell),
html:has(.cartable-standalone-shell) body {
    background: var(--cb-bg, #f4f6f5) !important;
    color: var(--cb-text, #2c3330);
    overflow: hidden;
    height: 100%;
    max-height: 100dvh;
    margin: 0;
    overscroll-behavior: none;
}

.cartable-app {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 100dvh;
    min-height: 0;
    overflow: hidden;
    overscroll-behavior: none;
    background: var(--cb-bg);
    direction: rtl;
    font-family: "IRANSansX", Tahoma, sans-serif;
    color: var(--cb-text);
    position: relative;
}

/* داخل تب‌های پنل اصلی: هدر + تب‌ها + فوتر وضعیت از ارتفاع کم شود */
.tab-content-pane.is-active:has(.cartable-app) {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
    height: calc(100dvh - 60px - 1.5rem - 56px - var(--app-status-footer-height, 36px));
    max-height: calc(100dvh - 60px - 1.5rem - 56px - var(--app-status-footer-height, 36px));
    overflow: hidden;
}

.tab-content-container .cartable-app {
    flex: 1 1 auto;
    height: 100%;
    max-height: 100%;
    min-height: 0;
    border: 1px solid var(--cb-border);
    border-radius: 0.5rem;
    overflow: hidden;
}

/* Header */
.cartable-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.65rem 1rem;
    background: var(--cb-surface);
    border-bottom: 1px solid var(--cb-border);
    flex-shrink: 0;
}

.cartable-header-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cartable-hamburger {
    display: none;
}

.cartable-back-nav {
    appearance: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--cb-border);
    background: var(--cb-bg);
    color: var(--cb-text);
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.15rem;
    flex-shrink: 0;
}

.cartable-back-nav:hover {
    border-color: var(--cb-accent);
    color: var(--cb-accent);
}

.cartable-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--cb-accent), #004f22);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    flex-shrink: 0;
    overflow: hidden;
}

.cartable-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cartable-avatar.sm {
    width: 42px;
    height: 42px;
    font-size: 0.85rem;
}

.cartable-avatar.xs {
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
}

.cartable-avatar-wrap {
    position: relative;
    display: inline-flex;
    flex-shrink: 0;
}

.cartable-avatar-wrap.is-online > .cartable-avatar {
    box-shadow: 0 0 0 2px var(--cb-online);
}

.cartable-online-badge {
    position: absolute;
    inset-inline-end: -1px;
    bottom: -1px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--cb-online);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--cb-surface);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.18);
    pointer-events: none;
}

.cartable-online-badge i {
    font-size: 8px;
    line-height: 1;
}

.cartable-profile-hero .cartable-online-badge {
    width: 22px;
    height: 22px;
    inset-inline-end: 2px;
    bottom: 2px;
}

.cartable-profile-hero .cartable-online-badge i {
    font-size: 11px;
}

.cartable-presence {
    display: inline-flex;
    align-items: center;
    gap: 0.28rem;
    color: var(--cb-muted);
    font-size: 0.78rem;
}

.cartable-presence.is-online {
    color: var(--cb-online);
    font-weight: 600;
}

.cartable-presence.is-online i {
    font-size: 0.85em;
}

.cartable-user-meta {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.cartable-user-name {
    font-weight: 700;
    font-size: 0.95rem;
}

.cartable-user-status {
    font-size: 0.75rem;
    color: var(--cb-muted);
}

.cartable-header-title {
    font-size: 0.9rem;
    color: var(--cb-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.cartable-header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: flex-end;
    margin-inline-start: auto;
}

.cartable-company-select {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.cartable-company-select label {
    font-size: 0.78rem;
    color: var(--cb-muted);
    margin: 0;
    white-space: nowrap;
}

.cartable-company-select .form-select {
    min-width: 10.5rem;
    max-width: 14rem;
    font-size: 0.82rem;
    border-color: var(--cb-border);
    background-color: var(--cb-surface);
    color: inherit;
}

.cartable-header-title i {
    color: var(--cb-accent);
}

/* Body: sidebar on the right in RTL */
.cartable-body {
    display: flex;
    flex-direction: row;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    position: relative;
}

.cartable-sidebar {
    order: -1;
    width: 320px;
    max-width: 38vw;
    background: var(--cb-surface);
    border-left: 1px solid var(--cb-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    min-height: 0;
    z-index: 4;
}

.cartable-sidebar-backdrop {
    display: none;
}

.cartable-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-bottom: 1px solid var(--cb-border);
    flex-shrink: 0;
}

.cartable-tab {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--cb-muted);
    padding: 0.65rem 0.25rem;
    font-size: 0.72rem;
    font-family: inherit;
    cursor: pointer;
    position: relative;
    transition: color 0.15s ease, background 0.15s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    min-height: 58px;
}

.cartable-tab i {
    font-size: 1.05rem;
    line-height: 1;
}

.cartable-tab span {
    line-height: 1.2;
    white-space: nowrap;
}

.cartable-tab:hover {
    color: var(--cb-text);
    background: var(--cb-surface-2);
}

.cartable-tab.active {
    color: var(--cb-accent);
    font-weight: 700;
}

.cartable-tab.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 2px;
    background: var(--cb-accent);
    border-radius: 2px 2px 0 0;
}

.cartable-search {
    padding: 0.75rem;
    border-bottom: 1px solid var(--cb-border);
    flex-shrink: 0;
}

.cartable-search-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--cb-bg);
    border: 1px solid var(--cb-border);
    border-radius: 8px;
    padding: 0.45rem 0.7rem;
}

.cartable-search-box i {
    color: var(--cb-muted);
}

.cartable-search-box input {
    flex: 1;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--cb-text);
    font-family: inherit;
    font-size: 0.85rem;
}

.cartable-search-box input::placeholder {
    color: var(--cb-muted);
}

.cartable-list {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    overscroll-behavior-y: contain;
}

.cartable-list-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0.85rem;
    cursor: pointer;
    transition: background 0.12s ease;
    border-right: 3px solid transparent;
}

.cartable-list-item:hover {
    background: var(--cb-surface-2);
}

.cartable-list-item.active {
    background: var(--cb-accent-dim);
    border-right-color: var(--cb-accent);
}

.cartable-list-item-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.cartable-list-item-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.5rem;
}

.cartable-list-item-name {
    font-weight: 600;
    font-size: 0.88rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cartable-online-icon {
    color: var(--cb-online);
    font-size: 0.82em;
    margin-inline-end: 0.28rem;
    vertical-align: -0.08em;
}

.cartable-list-item-time {
    font-size: 0.7rem;
    color: var(--cb-muted);
    flex-shrink: 0;
}

.cartable-list-item-preview {
    font-size: 0.78rem;
    color: var(--cb-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cartable-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    background: var(--cb-accent);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
}

.cartable-item-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.68rem;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    background: var(--cb-surface-2);
    color: var(--cb-muted);
}

.cartable-item-chip.letter { color: var(--cb-letter); background: rgba(111, 66, 193, 0.1); }
.cartable-item-chip.task { color: var(--cb-task); background: rgba(253, 126, 20, 0.12); }
.cartable-item-chip.open { color: var(--cb-info); background: rgba(13, 110, 253, 0.1); }
.cartable-item-chip.done { color: var(--cb-accent); background: var(--cb-accent-dim); }
.cartable-item-chip.answered { color: var(--cb-task); background: rgba(253, 126, 20, 0.12); }
.cartable-item-chip.guest { color: #b45309; background: rgba(180, 83, 9, 0.12); }

.cartable-priority-chip {
    display: inline-flex;
    align-items: center;
    font-size: 0.68rem;
    padding: 0.12rem 0.45rem;
    border-radius: 999px;
    font-weight: 700;
    white-space: nowrap;
}

.cartable-priority-chip.high {
    color: #b42318;
    background: rgba(180, 35, 24, 0.12);
}

.cartable-priority-chip.medium {
    color: #b54708;
    background: rgba(181, 71, 8, 0.12);
}

.cartable-priority-chip.low {
    color: #027a48;
    background: rgba(2, 122, 72, 0.12);
}

.cartable-ticket-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    min-width: 0;
}

.cartable-ticket-header {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--cb-border);
    background: var(--cb-surface);
    flex-shrink: 0;
}

.cartable-ticket-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.45rem;
}

.cartable-ticket-header-main h2 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 800;
}

.cartable-ticket-code {
    margin: 0.2rem 0 0;
    font-size: 0.78rem;
    color: var(--cb-muted);
}

.cartable-ticket-meta-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.55rem;
    margin-top: 0.75rem;
}

.cartable-ticket-meta-grid > div {
    background: var(--cb-bg);
    border: 1px solid var(--cb-border);
    border-radius: 8px;
    padding: 0.45rem 0.55rem;
    min-width: 0;
}

.cartable-ticket-meta-grid label {
    display: block;
    font-size: 0.68rem;
    color: var(--cb-muted);
    margin-bottom: 0.15rem;
}

.cartable-ticket-meta-grid span {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cartable-ticket-desc {
    margin-top: 0.7rem;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--cb-text);
}

.cartable-ticket-messages {
    flex: 1;
    overflow-y: auto;
    padding: 0.85rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 0;
    -webkit-overflow-scrolling: touch;
}

.cartable-ticket-msg {
    display: flex;
    gap: 0.55rem;
    max-width: min(92%, 640px);
}

.cartable-ticket-msg.mine {
    align-self: flex-start;
    flex-direction: row-reverse;
}

.cartable-ticket-msg.theirs {
    align-self: flex-end;
}

.cartable-ticket-msg-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--cb-accent), #004f22);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 700;
    flex-shrink: 0;
}

.cartable-ticket-msg-bubble {
    border: 1px solid var(--cb-border);
    border-radius: 12px;
    padding: 0.65rem 0.8rem;
    background: var(--cb-surface);
    min-width: 0;
}

.cartable-ticket-msg.mine .cartable-ticket-msg-bubble {
    background: var(--cb-sent);
    border-color: rgba(0, 79, 34, 0.25);
}

.cartable-ticket-msg-top {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
    font-size: 0.72rem;
    color: var(--cb-muted);
}

.cartable-ticket-msg-top strong {
    color: var(--cb-text);
    font-size: 0.82rem;
}

.cartable-ticket-msg-role {
    display: inline-block;
    margin-right: 0.35rem;
    font-size: 0.68rem;
    color: var(--cb-accent);
    font-weight: 600;
}

.cartable-ticket-msg-bubble p {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.55;
    white-space: pre-wrap;
}

.cartable-ticket-msg-bubble .cartable-attach {
    margin-top: 0.45rem;
}

.cartable-ticket-composer {
    border-top: 1px solid var(--cb-border);
}

@media (max-width: 900px) {
    .cartable-ticket-meta-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .cartable-ticket-meta-grid {
        grid-template-columns: 1fr;
    }
}

.cartable-back-btn {
    appearance: none;
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--cb-border);
    background: var(--cb-surface-2);
    color: var(--cb-accent);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.65rem 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    text-align: right;
}

.cartable-back-btn:hover {
    background: var(--cb-accent-dim);
}

.cartable-group-title {
    padding: 0.55rem 0.85rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cb-muted);
    background: var(--cb-bg);
    border-bottom: 1px solid var(--cb-border);
}

.cartable-letter-title {
    padding-right: 1rem;
}

/* Letter mode bar at bottom of sidebar */
.cartable-letter-mode-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;
    padding: 0.65rem;
    border-top: 1px solid var(--cb-border);
    background: var(--cb-surface);
    flex-shrink: 0;
}

.cartable-mode-btn {
    appearance: none;
    border: 1px solid var(--cb-border);
    background: var(--cb-bg);
    color: var(--cb-muted);
    font-family: inherit;
    font-size: 0.78rem;
    padding: 0.55rem 0.4rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    transition: border-color 0.12s ease, color 0.12s ease, background 0.12s ease;
}

.cartable-mode-btn i {
    font-size: 1rem;
}

.cartable-mode-btn:hover {
    color: var(--cb-text);
    border-color: var(--cb-accent);
}

.cartable-mode-btn.active {
    color: var(--cb-accent);
    border-color: var(--cb-accent);
    background: var(--cb-accent-dim);
    font-weight: 700;
}

.cartable-sidebar-footer {
    flex-shrink: 0;
    display: flex;
    justify-content: flex-end;
    padding: 0.65rem 0.85rem 0.85rem;
    border-top: 1px solid var(--cb-border);
    background: var(--cb-surface);
}

.cartable-new-chat-fab {
    appearance: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 0;
    background: var(--cb-accent, #0d9488);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(13, 148, 136, 0.35);
    transition: transform 0.12s ease, filter 0.12s ease;
}

.cartable-new-chat-fab:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
}

.cartable-new-chat-fab i {
    font-size: 1.25rem;
    line-height: 1;
}

.cartable-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 5000;
    background: rgba(15, 23, 42, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.cartable-modal {
    width: min(420px, 100%);
    max-height: min(560px, 90%);
    background: var(--cb-surface);
    border: 1px solid var(--cb-border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.28);
    pointer-events: auto;
}

.cartable-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--cb-border);
    flex-shrink: 0;
}

.cartable-modal-header h3 {
    margin: 0;
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--cb-text);
}

.cartable-modal-error {
    padding: 0.65rem 1rem;
    color: #b91c1c;
    font-size: 0.82rem;
    line-height: 1.5;
    background: rgba(185, 28, 28, 0.08);
    border-bottom: 1px solid var(--cb-border);
    white-space: normal;
}

.cartable-modal-body {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.cartable-contact-btn {
    appearance: none;
    width: 100%;
    border: 0;
    background: transparent;
    text-align: inherit;
    font: inherit;
    color: inherit;
    cursor: pointer;
}

.cartable-contact-btn:disabled {
    opacity: 0.65;
    cursor: wait;
}

.cartable-modal.is-wide {
    width: min(480px, 100%);
    max-height: min(640px, 92%);
}

.cartable-create-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--cb-border);
    flex-shrink: 0;
}

.cartable-create-action {
    appearance: none;
    border: 1px solid var(--cb-border);
    background: var(--cb-bg);
    border-radius: 10px;
    padding: 0.7rem 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    cursor: pointer;
    font: inherit;
    color: var(--cb-text);
}

.cartable-create-action:hover {
    border-color: var(--cb-accent);
    color: var(--cb-accent);
}

.cartable-create-action i {
    font-size: 1.15rem;
}

.cartable-create-action span {
    font-size: 0.8rem;
    font-weight: 600;
}

.cartable-header-profile-btn {
    appearance: none;
    border: 0;
    background: transparent;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
    flex: 1;
    text-align: inherit;
    font: inherit;
    color: inherit;
    cursor: pointer;
    padding: 0;
}

.cartable-avatar-space {
    background: linear-gradient(145deg, #0d9488, #115e59);
    color: #fff;
}

.cartable-avatar-space.is-channel {
    background: linear-gradient(145deg, #7c3aed, #5b21b6);
}

.cartable-form {
    padding: 0.9rem 1rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.cartable-form label.field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--cb-text);
}

.cartable-form input[type=text],
.cartable-form input[type=search],
.cartable-form select {
    font: inherit;
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--cb-border);
    border-radius: 8px;
    background: var(--cb-bg);
    color: var(--cb-text);
}

.cartable-form-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.5rem;
    padding: 0.75rem 1rem 1rem;
    border-top: 1px solid var(--cb-border);
    flex-shrink: 0;
}

.cartable-form-inline {
    display: flex;
    justify-content: flex-end;
}

.cartable-profile-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.45rem;
    padding: 1rem 1rem 0.65rem;
    text-align: center;
}

.cartable-profile-hero .cartable-avatar {
    width: 72px;
    height: 72px;
    font-size: 1.4rem;
}

.cartable-kv {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.35rem 0.75rem;
    padding: 0 1rem 1rem;
    font-size: 0.82rem;
}

.cartable-kv dt {
    color: var(--cb-muted);
}

.cartable-kv dd {
    margin: 0;
}

.cartable-section-title {
    padding: 0.55rem 1rem 0.35rem;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--cb-muted);
}

.cartable-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding-inline-end: 0.65rem;
}

.cartable-section-head .cartable-section-title {
    flex: 1;
    min-width: 0;
}

.cartable-section-hint {
    padding: 0 1rem 0.55rem;
    font-size: 0.75rem;
    color: var(--cb-muted);
    line-height: 1.55;
}

.cartable-add-member-panel {
    border-bottom: 1px solid var(--cb-border);
    background: var(--cb-surface-2);
}

.cartable-icon-btn.sm {
    width: 34px;
    height: 34px;
    min-width: 34px;
    min-height: 34px;
    font-size: 0.95rem;
}

.cartable-invite-box {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    padding: 0 1rem 0.75rem;
}

.cartable-invite-box input {
    flex: 1;
    min-width: 0;
    font: inherit;
    font-size: 0.75rem;
    padding: 0.45rem 0.55rem;
    border: 1px solid var(--cb-border);
    border-radius: 8px;
    background: var(--cb-bg);
    color: var(--cb-text);
}

.cartable-text-btn {
    appearance: none;
    border: 0;
    background: transparent;
    color: #b91c1c;
    font: inherit;
    font-size: 0.75rem;
    cursor: pointer;
    padding: 0;
}

.cartable-member-row .cartable-list-item-top {
    align-items: center;
}

.cartable-member-actions {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
}

.cartable-member-remove {
    appearance: none;
    width: 32px;
    height: 32px;
    min-width: 32px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--cb-danger, #dc3545);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
}

.cartable-member-remove:hover:not(:disabled) {
    background: rgba(220, 53, 69, 0.12);
}

.cartable-member-remove:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.cartable-confirm-host {
    position: relative;
    z-index: 5200;
}

.cartable-confirm-host .modal {
    z-index: 5210;
}

.cartable-confirm-host .modal-backdrop {
    z-index: 5205;
}

.cartable-modal-info {
    padding: 0.65rem 1rem;
    color: #0f766e;
    font-size: 0.82rem;
    line-height: 1.5;
    background: rgba(13, 148, 136, 0.08);
    border-bottom: 1px solid var(--cb-border);
}

.cartable-composer-locked {
    padding: 0.9rem 1rem;
    text-align: center;
    color: var(--cb-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--cb-border);
    background: var(--cb-surface);
}

/* Main pane */
.cartable-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(0, 79, 34, 0.05), transparent 50%),
        var(--cb-bg);
}

.cartable-standalone-shell[data-bs-theme="dark"] .cartable-main,
[data-bs-theme="dark"] .cartable-app .cartable-main {
    background:
        radial-gradient(ellipse at 20% 0%, rgba(61, 155, 95, 0.07), transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(88, 166, 255, 0.05), transparent 45%),
        var(--cb-bg);
}

.cartable-main-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--cb-border);
    background: var(--cb-surface);
    flex-shrink: 0;
}

.cartable-main-header-info {
    flex: 1;
    min-width: 0;
}

.cartable-main-header-info h2 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 700;
}

.cartable-main-header-info p {
    margin: 0;
    font-size: 0.75rem;
    color: var(--cb-muted);
}

.cartable-main-header-info .cartable-presence.is-online {
    color: var(--cb-online);
}

.cartable-messages-wrap {
    flex: 1;
    min-height: 0;
    position: relative;
    display: flex;
    flex-direction: column;
}

.cartable-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 0;
    overscroll-behavior-y: contain;
}

.cartable-jump-latest {
    position: absolute;
    left: 50%;
    bottom: 0.85rem;
    transform: translateX(-50%);
    z-index: 4;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: 0;
    border-radius: 999px;
    padding: 0.45rem 0.85rem;
    background: var(--cb-accent, #004f22);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
    cursor: pointer;
    white-space: nowrap;
}

.cartable-jump-latest i {
    font-size: 0.95rem;
}

.cartable-jump-latest:hover {
    filter: brightness(1.08);
}

.cartable-day-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-width: 0;
    width: 100%;
    align-self: stretch;
    overflow: visible;
}

.cartable-messages-load-older {
    position: relative;
    z-index: 3;
    display: flex;
    justify-content: center;
    flex-shrink: 0;
    margin: 0.35rem 0;
}

.cartable-day-sep {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    align-self: stretch;
    width: auto;
    margin-inline: -1rem;
    padding: 0.35rem 1rem;
    pointer-events: none;
    flex-shrink: 0;
    background: transparent;
}

.cartable-day-sep.is-status {
    position: relative;
    top: auto;
    z-index: 1;
    margin-inline: 0;
}

.cartable-day-sep-pill {
    display: inline-block;
    max-width: 100%;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--cb-muted);
    background: var(--cb-surface);
    border: 1px solid var(--cb-border);
    padding: 0.2rem 0.7rem;
    border-radius: 999px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    user-select: none;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.cartable-msg {
    display: flex;
    max-width: min(72%, 520px);
    gap: 0.5rem;
    position: relative;
}

.cartable-msg.mine,
.cartable-msg.theirs {
    flex-direction: row-reverse;
}

.cartable-msg.mine {
    align-self: flex-start;
    margin-inline-end: auto;
    align-items: flex-end;
}

.cartable-msg.theirs {
    align-self: flex-end;
    margin-inline-start: auto;
    align-items: flex-end;
}

.cartable-msg .cartable-avatar-slot {
    order: 1;
    flex-shrink: 0;
    align-self: flex-end;
}

.cartable-msg.mine .cartable-msg-actions {
    order: 1;
}

.cartable-msg.mine .cartable-bubble {
    order: 2;
}

.cartable-msg.mine .cartable-avatar-slot {
    order: 3;
}

.cartable-msg.theirs .cartable-bubble {
    order: 2;
}

.cartable-msg.theirs .cartable-msg-actions {
    order: 3;
}

.cartable-msg.has-sender {
    align-items: flex-start;
}

.cartable-msg-sender {
    display: flex;
    align-items: baseline;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.28rem;
    line-height: 1.2;
}

.cartable-msg-sender-name {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--cb-accent);
}

.cartable-msg.mine .cartable-msg-sender-name {
    color: #0b3d22;
}

.cartable-msg-sender-id {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--cb-muted);
    direction: ltr;
    unicode-bidi: isolate;
}

.cartable-bubble {
    border-radius: 12px;
    padding: 0.65rem 0.85rem;
    background: var(--cb-received);
    border: 1px solid var(--cb-border);
}

.cartable-msg.mine .cartable-bubble {
    background: var(--cb-sent);
    border-color: rgba(0, 79, 34, 0.25);
}

.cartable-bubble-text {
    font-size: 0.88rem;
    line-height: 1.55;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.cartable-bubble-text br {
    display: block;
}

.cartable-bubble-meta {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.35rem;
    font-size: 0.68rem;
    color: var(--cb-muted);
}

.cartable-msg-ticks {
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

.cartable-msg-ticks i {
    font-size: 0.72rem;
}

.cartable-msg-tick-second {
    margin-inline-start: -0.32rem;
}

.cartable-msg-ticks.is-sent {
    color: var(--cb-muted);
}

.cartable-msg-ticks.is-seen {
    color: #2563eb;
}

.cartable-msg-views {
    display: inline-flex;
    align-items: center;
    gap: 0.18rem;
    line-height: 1;
    color: var(--cb-muted);
}

.cartable-msg-views i {
    font-size: 0.78rem;
}

.cartable-msg-views span {
    font-size: 0.68rem;
    font-variant-numeric: tabular-nums;
}

.cartable-msg-actions {
    display: flex;
    align-items: center;
    gap: 0.12rem;
    opacity: 0;
    pointer-events: none;
    align-self: center;
    flex-shrink: 0;
    transition: opacity 0.12s ease;
}

.cartable-msg:hover .cartable-msg-actions,
.cartable-msg:focus-within .cartable-msg-actions {
    opacity: 1;
    pointer-events: auto;
}

.cartable-msg-actions button {
    appearance: none;
    width: 28px;
    height: 28px;
    border: 0;
    background: var(--cb-surface);
    color: var(--cb-muted);
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.08);
}

.cartable-msg-actions button:hover {
    color: var(--cb-accent);
    background: var(--cb-bg);
}

.cartable-msg-actions button:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.cartable-msg-quote {
    appearance: none;
    display: flex;
    align-items: stretch;
    gap: 0.45rem;
    width: 100%;
    margin: 0 0 0.45rem;
    padding: 0.3rem 0.45rem;
    border: 0;
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.06);
    color: inherit;
    text-align: start;
    cursor: pointer;
}

.cartable-msg.mine .cartable-msg-quote {
    background: rgba(0, 79, 34, 0.08);
}

.cartable-msg-quote-bar {
    width: 3px;
    border-radius: 99px;
    background: var(--cb-accent);
    flex-shrink: 0;
}

.cartable-msg-quote-text {
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--cb-muted);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.cartable-msg-edited {
    font-style: italic;
}

.cartable-bubble-text.is-deleted {
    font-style: italic;
    color: var(--cb-muted);
}

.cartable-msg.is-deleted .cartable-bubble {
    opacity: 0.78;
}

.cartable-msg-flash .cartable-bubble {
    animation: cartable-msg-flash 1.2s ease;
}

@keyframes cartable-msg-flash {
    0%, 100% { box-shadow: none; }
    35% { box-shadow: 0 0 0 3px rgba(0, 79, 34, 0.28); }
}

.cartable-composer-context {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.55rem;
    border: 1px solid var(--cb-border);
    border-radius: 10px;
    background: var(--cb-bg);
}

.cartable-composer-context.is-reply {
    border-inline-start: 3px solid var(--cb-accent);
}

.cartable-composer-context.is-edit {
    border-inline-start: 3px solid #d97706;
}

.cartable-composer-context i {
    color: var(--cb-accent);
    font-size: 0.95rem;
}

.cartable-composer-context.is-edit i {
    color: #d97706;
}

.cartable-composer-context-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.08rem;
}

.cartable-composer-context-body strong {
    font-size: 0.75rem;
}

.cartable-composer-context-body span {
    font-size: 0.72rem;
    color: var(--cb-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cartable-composer-context button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--cb-muted);
    width: 28px;
    height: 28px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.05rem;
    line-height: 1;
}

.cartable-composer-context button:hover {
    color: var(--cb-text);
    background: var(--cb-surface);
}

.cartable-attach {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    min-width: 200px;
    cursor: pointer;
    border: 0;
    background: transparent;
    width: 100%;
    text-align: inherit;
    padding: 0;
}

.cartable-attach-icon {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    flex-shrink: 0;
}

.cartable-attach-icon.file { background: rgba(13, 110, 253, 0.12); color: var(--cb-info); }
.cartable-attach-icon.pdf { background: rgba(220, 53, 69, 0.12); color: var(--cb-danger); }
.cartable-attach-icon.image { background: var(--cb-accent-dim); color: var(--cb-accent); }

.cartable-attach-info { flex: 1; min-width: 0; }

.cartable-attach-name {
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cartable-attach-size {
    font-size: 0.72rem;
    color: var(--cb-muted);
}

.cartable-image-preview {
    display: block;
    width: 180px;
    height: 180px;
    padding: 0;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 0.35rem;
    border: 1px solid var(--cb-border);
    background: var(--cb-surface);
    cursor: pointer;
    color: inherit;
    font: inherit;
}

.cartable-image-preview img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cartable-image-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    color: var(--cb-muted);
    font-size: 0.78rem;
}

.cartable-image-fallback i {
    font-size: 1.4rem;
}

.cartable-notif {
    align-self: center;
    max-width: min(85%, 440px);
    width: 100%;
    border-radius: 10px;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--cb-border);
    background: var(--cb-surface);
    display: flex;
    gap: 0.7rem;
    align-items: flex-start;
}

.cartable-notif.letter {
    border-color: rgba(111, 66, 193, 0.35);
    background: linear-gradient(135deg, rgba(111, 66, 193, 0.08), var(--cb-surface));
}

.cartable-notif.ticket,
.cartable-notif.task {
    border-color: rgba(253, 126, 20, 0.35);
    background: linear-gradient(135deg, rgba(253, 126, 20, 0.08), var(--cb-surface));
}

.cartable-notif-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cartable-notif.letter .cartable-notif-icon {
    background: rgba(111, 66, 193, 0.15);
    color: var(--cb-letter);
}

.cartable-notif.ticket .cartable-notif-icon,
.cartable-notif.task .cartable-notif-icon {
    background: rgba(253, 126, 20, 0.15);
    color: var(--cb-task);
}

.cartable-notif-body { flex: 1; min-width: 0; }

.cartable-notif-title {
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 0.15rem;
}

.cartable-notif-desc {
    font-size: 0.78rem;
    color: var(--cb-muted);
    line-height: 1.45;
}

.cartable-notif-actions {
    margin-top: 0.45rem;
}

.cartable-notif-actions button {
    appearance: none;
    border: 1px solid var(--cb-border);
    background: var(--cb-bg);
    color: var(--cb-text);
    font-family: inherit;
    font-size: 0.75rem;
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    cursor: pointer;
}

.cartable-notif-actions button:hover {
    border-color: var(--cb-accent);
    color: var(--cb-accent);
}

.cartable-detail {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    min-height: 0;
}

.cartable-detail-card {
    background: var(--cb-surface);
    border: 1px solid var(--cb-border);
    border-radius: 12px;
    padding: 1.25rem;
    max-width: 720px;
    margin: 0 auto;
}

.cartable-detail-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
}

.cartable-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.8rem;
    color: var(--cb-muted);
}

.cartable-detail-body {
    font-size: 0.9rem;
    line-height: 1.7;
    border-top: 1px solid var(--cb-border);
    padding-top: 1rem;
    white-space: pre-wrap;
}

.cartable-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--cb-muted);
    padding: 2rem;
    text-align: center;
}

.cartable-empty i {
    font-size: 2.5rem;
    opacity: 0.5;
}

/* Composer: attach | input | send — one aligned row (RTL: send right, attach left of input) */
.cartable-composer {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    padding: 0.65rem 0.85rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--cb-border);
    background: var(--cb-surface);
    flex-shrink: 0;
    position: sticky;
    bottom: 0;
    z-index: 5;
}

/* Panel chat sits above the fixed status footer — do not stack iOS safe-area on top of it */
.tab-content-container .cartable-composer {
    padding-bottom: 0.65rem;
}

.cartable-composer-row {
    display: flex;
    align-items: flex-end;
    gap: 0.4rem;
    direction: rtl;
}

.cartable-icon-btn {
    appearance: none;
    width: 42px;
    height: 42px;
    min-width: 42px;
    min-height: 42px;
    border-radius: 10px;
    border: 1px solid var(--cb-border);
    background: var(--cb-bg);
    color: var(--cb-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.05rem;
    margin: 0;
    flex-shrink: 0;
    box-sizing: border-box;
    transition: color 0.12s ease, border-color 0.12s ease, background 0.12s ease;
}

.cartable-icon-btn:hover {
    color: var(--cb-accent);
    border-color: var(--cb-accent);
}

.cartable-icon-btn.primary {
    background: var(--cb-accent);
    border-color: var(--cb-accent);
    color: #fff;
}

.cartable-icon-btn.primary:hover {
    background: var(--cb-accent-hover);
    color: #fff;
}

.cartable-icon-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.cartable-composer-input {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
}

.cartable-composer-input textarea {
    width: 100%;
    resize: none;
    border: 1px solid var(--cb-border);
    background: var(--cb-bg);
    color: var(--cb-text);
    border-radius: 10px;
    padding: 0.55rem 0.85rem;
    font-family: inherit;
    font-size: 16px;
    outline: 0;
    height: 42px;
    min-height: 42px;
    max-height: 160px;
    line-height: 1.4;
    box-sizing: border-box;
    overflow-y: hidden;
}

.cartable-composer-input textarea:focus {
    border-color: var(--cb-accent);
}

.cartable-pending-files {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.4rem;
}

.cartable-pending-file {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--cb-bg);
    border: 1px solid var(--cb-border);
    border-radius: 6px;
    padding: 0.2rem 0.45rem;
    font-size: 0.72rem;
    color: var(--cb-muted);
}

.cartable-pending-file button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--cb-danger);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    font-size: 0.9rem;
}

.cartable-file-input-hidden {
    display: none;
}

.cartable-list::-webkit-scrollbar,
.cartable-messages::-webkit-scrollbar,
.cartable-detail::-webkit-scrollbar {
    width: 6px;
}

.cartable-list::-webkit-scrollbar-thumb,
.cartable-messages::-webkit-scrollbar-thumb,
.cartable-detail::-webkit-scrollbar-thumb {
    background: var(--cb-border);
    border-radius: 3px;
}

.cartable-letter-title.is-unread .cartable-list-item-name {
    font-weight: 800;
}

.cartable-letter-title.is-read .cartable-list-item-name {
    font-weight: 500;
    color: var(--cb-muted);
}

.cartable-read-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--cb-accent);
}

.cartable-letter-title.is-read .cartable-read-dot {
    background: var(--cb-border);
}

.cartable-letter-status {
    font-size: 0.68rem;
    color: var(--cb-muted);
}

.cartable-letter-title.is-unread .cartable-letter-status {
    color: var(--cb-accent);
    font-weight: 700;
}

/* Letter read-only view */
.cartable-letter-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    min-width: 0;
}

.cartable-letter-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--cb-border);
    background: var(--cb-surface);
    flex-shrink: 0;
}

.cartable-letter-toolbar-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.cartable-letter-toolbar-info strong {
    font-size: 0.92rem;
}

.cartable-letter-toolbar-info span {
    font-size: 0.75rem;
    color: var(--cb-muted);
}

.cartable-letter-toolbar-actions {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.cartable-action-btn {
    appearance: none;
    border: 1px solid var(--cb-border);
    background: var(--cb-bg);
    color: var(--cb-text);
    font-family: inherit;
    font-size: 0.8rem;
    padding: 0.4rem 0.7rem;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.cartable-action-btn:hover {
    border-color: var(--cb-accent);
    color: var(--cb-accent);
}

.cartable-action-btn.primary {
    background: var(--cb-accent);
    border-color: var(--cb-accent);
    color: #fff;
}

.cartable-action-btn.primary:hover {
    background: var(--cb-accent-hover);
    color: #fff;
}

.cartable-letter-toast {
    margin: 0.5rem 1rem 0;
    padding: 0.45rem 0.75rem;
    border-radius: 8px;
    background: var(--cb-accent-dim);
    color: var(--cb-accent);
    font-size: 0.8rem;
    flex-shrink: 0;
}

.cartable-letter-split {
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 0;
    min-height: 0;
    overflow: hidden;
}

.cartable-letter-paper-wrap {
    min-height: 0;
    overflow: auto;
    padding: 0.75rem;
    background: #e6ebe8;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x pan-y;
}

.cartable-letter-zoom {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.15rem;
    border: 1px solid var(--cb-border);
    border-radius: 8px;
    background: var(--cb-bg);
}

.cartable-zoom-btn,
.cartable-zoom-label {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--cb-text);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0;
}

.cartable-zoom-label {
    width: auto;
    min-width: 44px;
    padding: 0 0.25rem;
}

.cartable-zoom-btn:hover,
.cartable-zoom-label:hover {
    background: var(--cb-accent-dim);
    color: var(--cb-accent);
}

.cartable-zoom-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.cartable-letter-zoom-stage {
    position: relative;
    margin: 0 auto;
    transform-origin: top center;
}

.cartable-letter-zoom-stage .cartable-letter-a4 {
    position: absolute;
    top: 0;
    left: 50%;
    width: 794px;
    transform: translateX(-50%) scale(var(--letter-zoom, 0.55));
    transform-origin: top center;
}

.cartable-letter-a4 {
    height: auto;
    min-height: 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    overflow: visible;
}

.cartable-letter-a4 .letter-a4 {
    width: 794px;
    min-height: 1123px;
    margin: 0;
}

.cartable-letter-ro-header,
.cartable-letter-ro-footer {
    pointer-events: none;
    user-select: none;
}

.cartable-letter-ro-body {
    user-select: text;
    cursor: text;
    -webkit-user-select: text;
}

.cartable-letter-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cartable-letter-brand img {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

.cartable-letter-brand strong {
    display: block;
    font-size: 0.9rem;
    color: #004f22;
}

.cartable-letter-brand span {
    display: block;
    font-size: 0.72rem;
    color: #6e6b7b;
}

.cartable-letter-refs {
    border-right: 1px solid var(--cb-border);
    background: var(--cb-surface);
    padding: 0.85rem;
    overflow-y: auto;
    min-height: 0;
}

.cartable-letter-refs h4 {
    margin: 0 0 0.45rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.cartable-letter-refs-summary {
    font-size: 0.78rem;
    color: var(--cb-muted);
    margin: 0 0 0.75rem;
}

.cartable-ref-list {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.cartable-ref-card {
    border: 1px solid var(--cb-border);
    border-radius: 10px;
    padding: 0.65rem;
    background: var(--cb-bg);
}

.cartable-ref-card-top {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cartable-ref-name {
    font-size: 0.82rem;
    font-weight: 700;
}

.cartable-ref-role {
    font-size: 0.7rem;
    color: var(--cb-muted);
}

.cartable-ref-status {
    margin-right: auto;
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    border-radius: 999px;
    background: var(--cb-surface-2);
    color: var(--cb-muted);
    white-space: nowrap;
}

.cartable-ref-status.parafed {
    background: var(--cb-accent-dim);
    color: var(--cb-accent);
}

.cartable-ref-status.read {
    background: rgba(13, 110, 253, 0.12);
    color: var(--cb-info);
}

.cartable-ref-status.unread {
    background: rgba(220, 53, 69, 0.12);
    color: var(--cb-danger);
}

.cartable-ref-status.sent {
    background: rgba(253, 126, 20, 0.12);
    color: var(--cb-task);
}

.cartable-ref-paraf {
    margin-top: 0.5rem;
    padding-top: 0.45rem;
    border-top: 1px dashed var(--cb-border);
    font-size: 0.78rem;
    line-height: 1.5;
}

.cartable-ref-paraf.muted {
    color: var(--cb-muted);
}

.cartable-ref-paraf-label {
    font-weight: 700;
    color: var(--cb-accent);
    margin-left: 0.25rem;
}

.cartable-ref-paraf-date {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.68rem;
    color: var(--cb-muted);
}

@media (max-width: 1100px) {
    .cartable-letter-split {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(280px, 1fr) auto;
        overflow: auto;
    }

    .cartable-letter-refs {
        border-right: 0;
        border-top: 1px solid var(--cb-border);
        max-height: 280px;
    }
}

/* Mobile messenger: list (home) ↔ conversation (detail), pinned top chrome + bottom composer */
@media (max-width: 768px) {
    .cartable-standalone-shell,
    .cartable-standalone-shell .cartable-app {
        height: 100dvh;
        max-height: 100dvh;
    }

    /* Embedded chat: fill the band under navbar/tabs and above the status footer — never 100dvh. */
    div.wrapper:has(.tab-content-pane.is-active .cartable-app) {
        height: 100dvh;
        max-height: 100dvh;
        overflow: hidden;
    }

    div.wrapper:has(.tab-content-pane.is-active .cartable-app) .content-wrapper-container {
        /* beat Bootstrap .h-100; margin-top + 100% would overflow the footer */
        height: calc(100dvh - 60px - 0.5rem - var(--app-status-footer-height, 30px)) !important;
        max-height: calc(100dvh - 60px - 0.5rem - var(--app-status-footer-height, 30px));
        min-height: 0;
        flex: 1 1 auto;
        overflow: hidden;
    }

    main.main-content:has(.tab-content-pane.is-active .cartable-app) {
        overflow: hidden;
        min-height: 0;
        height: 100%;
        max-height: 100%;
        flex: 1 1 auto;
        margin-bottom: 0;
    }

    div.wrapper:has(.tab-content-pane.is-active .cartable-app) .content-wrapper {
        min-height: 0;
        overflow: hidden;
        flex: 1 1 auto;
        height: 100%;
    }

    .tab-content-container:has(.tab-content-pane.is-active .cartable-app) {
        flex: 1 1 auto;
        min-height: 0;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        height: 100%;
    }

    /* cartable.css loads after app.css; keep the pane inside the tab host, not 100dvh */
    .tab-content-pane.is-active:has(.cartable-app) {
        display: flex;
        flex-direction: column;
        flex: 1 1 auto;
        min-height: 0;
        height: 100%;
        max-height: 100%;
        overflow: hidden;
    }

    .tab-content-container .cartable-app,
    .tab-content-pane .cartable-app {
        height: 100%;
        max-height: 100%;
        min-height: 0;
    }

    .cartable-header {
        position: sticky;
        top: 0;
        z-index: 8;
        flex-shrink: 0;
    }

    .cartable-standalone-shell .cartable-header {
        padding-top: calc(0.55rem + env(safe-area-inset-top, 0px));
    }

    .cartable-tabs,
    .cartable-search {
        position: sticky;
        top: 0;
        z-index: 7;
        background: var(--cb-surface);
        flex-shrink: 0;
    }

    .cartable-back-nav {
        display: inline-flex;
    }

    .cartable-app.is-mobile-home .cartable-back-nav {
        display: none;
    }

    .cartable-app.is-mobile-detail .cartable-user-meta {
        display: none;
    }

    .cartable-body {
        position: relative;
        display: flex;
        flex-direction: column;
        flex: 1 1 auto;
        min-height: 0;
        overflow: hidden;
    }

    .cartable-sidebar,
    .cartable-main {
        order: 0;
        position: relative;
        inset: auto;
        width: 100%;
        max-width: none;
        border-left: 0;
        z-index: 2;
        transform: none;
        box-shadow: none;
        flex: 1 1 auto;
        min-height: 0;
        overflow: hidden;
    }

    .cartable-app.is-mobile-home .cartable-sidebar {
        display: flex;
        flex-direction: column;
        min-height: 0;
        overflow: hidden;
    }

    .cartable-app.is-mobile-home .cartable-main {
        display: none;
    }

    .cartable-app.is-mobile-detail .cartable-sidebar {
        display: none;
    }

    .cartable-app.is-mobile-detail .cartable-main {
        display: flex;
        flex-direction: column;
        min-height: 0;
        overflow: hidden;
    }

    .cartable-sidebar-backdrop {
        display: none !important;
    }

    .cartable-sidebar-footer,
    .cartable-composer,
    .cartable-composer-locked {
        flex-shrink: 0;
        position: sticky;
        bottom: 0;
        z-index: 6;
        background: var(--cb-surface);
        margin-top: auto;
    }

    .cartable-sidebar-footer {
        padding: 0.5rem 0.75rem calc(0.5rem + env(safe-area-inset-bottom, 0px));
    }

    .tab-content-container .cartable-sidebar-footer {
        padding-bottom: 0.5rem;
    }

    .cartable-messages {
        padding-bottom: 0.5rem;
        -webkit-overflow-scrolling: touch;
    }

    .cartable-day-sep {
        padding-block: 0.28rem;
    }

    .cartable-day-sep-pill {
        font-size: 0.68rem;
        padding: 0.18rem 0.65rem;
    }

    .cartable-msg-actions {
        opacity: 1;
        pointer-events: auto;
    }

    .cartable-msg {
        max-width: min(88%, 520px);
    }

    .cartable-composer {
        padding: 0.55rem 0.7rem calc(0.65rem + env(safe-area-inset-bottom, 0px));
    }

    .tab-content-container .cartable-composer {
        padding-bottom: 0.45rem;
    }

    .cartable-composer-row {
        align-items: flex-end;
    }

    .cartable-icon-btn {
        height: 42px;
        min-height: 42px;
    }

    .cartable-composer-input textarea {
        min-height: 42px;
        max-height: 140px;
    }

    .cartable-header-title span {
        max-width: 42vw;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        display: inline-block;
        vertical-align: middle;
    }

    .cartable-main-header {
        position: sticky;
        top: 0;
        z-index: 7;
        padding-top: 0.55rem;
    }

    .cartable-letter-toolbar-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .cartable-letter-zoom {
        order: -1;
        margin-left: auto;
    }

    .cartable-letter-a4 .letter-a4 {
        min-height: 1123px;
    }
}