/* XSSM Desktop Sidebar */

@media (min-width: 769px) {
    .modern-sidebar,
    html.has-open-chat .modern-sidebar {
        --ds-line: rgba(255, 255, 255, 0.085);
        --ds-line-strong: rgba(255, 255, 255, 0.13);
        --ds-surface: rgba(9, 12, 24, 0.57);
        --ds-surface-soft: rgba(255, 255, 255, 0.027);
        --ds-surface-hover: rgba(255, 255, 255, 0.052);
        --ds-accent: rgba(153, 128, 242, 0.92);
        --ds-accent-soft: rgba(139, 112, 230, 0.12);
        --ds-text: rgba(247, 245, 252, 0.94);
        --ds-secondary: rgba(213, 208, 226, 0.62);
        --ds-muted: rgba(182, 177, 199, 0.42);
        display: flex !important;
        width: clamp(320px, 23vw, 360px) !important;
        min-width: clamp(320px, 23vw, 360px) !important;
        height: calc(100dvh - 20px) !important;
        max-height: calc(100dvh - 20px) !important;
        flex: 0 0 clamp(320px, 23vw, 360px) !important;
        flex-direction: column !important;
        justify-content: flex-start !important;
        margin: 10px 7px 10px 10px !important;
        overflow: hidden !important;
        border: 1px solid var(--ds-line) !important;
        border-radius: 28px !important;
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.006) 44%),
            var(--ds-surface) !important;
        box-shadow:
            0 24px 64px rgba(0, 0, 0, 0.28),
            0 6px 18px rgba(0, 0, 0, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.09) !important;
        -webkit-backdrop-filter: blur(38px) saturate(155%) !important;
        backdrop-filter: blur(38px) saturate(155%) !important;
        isolation: isolate;
    }

    .modern-sidebar::before {
        content: "" !important;
        position: absolute !important;
        z-index: -1 !important;
        top: -145px !important;
        left: -90px !important;
        display: block !important;
        width: 300px !important;
        height: 280px !important;
        border-radius: 50% !important;
        background: rgba(132, 103, 225, 0.07) !important;
        filter: blur(66px) !important;
        opacity: 1 !important;
        pointer-events: none !important;
    }

    .modern-sidebar::after {
        content: "" !important;
        position: absolute !important;
        z-index: -1 !important;
        right: -120px !important;
        bottom: -130px !important;
        display: block !important;
        width: 270px !important;
        height: 270px !important;
        border-radius: 50% !important;
        background: rgba(61, 185, 154, 0.035) !important;
        filter: blur(72px) !important;
        opacity: 1 !important;
        pointer-events: none !important;
    }

    html.has-open-chat .modern-sidebar {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
    }

    /* Header */
    .modern-sidebar > .sidebar-header {
        display: flex !important;
        min-height: 74px;
        flex: 0 0 auto !important;
        align-items: center;
        gap: 8px;
        padding: 11px 12px 7px !important;
    }

    .modern-sidebar .sidebar-brand {
        display: flex;
        min-width: 0;
        flex: 1;
        align-items: center;
        gap: 10px;
        padding: 6px !important;
        border: 1px solid transparent !important;
        border-radius: 18px !important;
        background: transparent !important;
        box-shadow: none !important;
        -webkit-backdrop-filter: none !important;
        backdrop-filter: none !important;
        transition: background 170ms ease, border-color 170ms ease !important;
    }

    .modern-sidebar .sidebar-brand:hover {
        transform: none !important;
        border-color: rgba(255, 255, 255, 0.045) !important;
        background: rgba(255, 255, 255, 0.028) !important;
        box-shadow: none !important;
    }

    .modern-sidebar .sidebar-brand:active {
        transform: scale(0.98) !important;
    }

    .modern-sidebar .sidebar-brand-icon {
        display: grid;
        width: 42px;
        height: 42px;
        flex: 0 0 42px;
        place-items: center;
        border: 1px solid rgba(218, 204, 255, 0.17);
        border-radius: 15px;
        background: linear-gradient(145deg, rgba(137, 108, 225, 0.98), rgba(82, 66, 168, 0.98));
        color: rgba(255, 255, 255, 0.96);
        box-shadow:
            0 9px 22px rgba(50, 34, 128, 0.22),
            inset 0 1px 0 rgba(255, 255, 255, 0.18);
        font-size: 0.82rem;
    }

    .modern-sidebar .sidebar-brand-copy {
        display: flex;
        min-width: 0;
        flex-direction: column;
        gap: 2px;
    }

    .modern-sidebar .sidebar-brand-title,
    .modern-sidebar .sidebar-brand span.sidebar-brand-title {
        color: var(--ds-text);
        font-size: 1rem;
        font-weight: 780;
        letter-spacing: -0.03em;
        line-height: 1.1;
    }

    .modern-sidebar .desktop-brand-label {
        display: inline !important;
    }

    .modern-sidebar .mobile-brand-label {
        display: none !important;
    }

    .modern-sidebar .sidebar-brand-summary {
        display: block !important;
        overflow: hidden;
        color: var(--ds-muted);
        font-size: 0.61rem;
        font-weight: 540;
        letter-spacing: 0.005em;
        line-height: 1.2;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .modern-sidebar .sidebar-header-actions {
        display: flex;
        flex: 0 0 auto;
        align-items: center;
        gap: 5px;
    }

    .modern-sidebar .sidebar-action-btn,
    .modern-sidebar .sidebar-read-btn,
    .modern-sidebar .sidebar-compose-btn {
        position: relative;
        display: grid !important;
        width: 38px;
        height: 38px;
        place-items: center;
        padding: 0;
        border: 1px solid rgba(255, 255, 255, 0.065) !important;
        border-radius: 13px !important;
        background: rgba(255, 255, 255, 0.024) !important;
        color: rgba(205, 199, 220, 0.5) !important;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025) !important;
        font-size: 0.72rem;
        transition: transform 150ms ease, color 150ms ease, background 150ms ease, border-color 150ms ease !important;
    }

    .modern-sidebar .sidebar-action-btn:hover {
        transform: none !important;
        border-color: rgba(176, 151, 250, 0.15) !important;
        background: rgba(145, 116, 233, 0.075) !important;
        color: rgba(235, 228, 255, 0.88) !important;
        box-shadow: none !important;
    }

    .modern-sidebar .sidebar-action-btn:active {
        transform: scale(0.91) !important;
    }

    .modern-sidebar .sidebar-action-dot {
        position: absolute;
        top: 7px;
        right: 7px;
        width: 5px;
        height: 5px;
        border: 1px solid rgba(10, 13, 25, 0.9);
        border-radius: 50%;
        background: #9a83ee;
    }

    .modern-sidebar .sidebar-action-dot:empty {
        display: none;
    }

    /* Search */
    .modern-sidebar > .sidebar-dsearch {
        display: flex;
        min-height: 51px;
        flex: 0 0 auto !important;
        align-items: center;
        padding: 3px 14px 7px !important;
    }

    .modern-sidebar .dsearch-pill {
        display: flex;
        height: 44px;
        min-width: 0;
        flex: 1;
        align-items: center;
        gap: 8px;
        padding: 0 7px 0 13px;
        border: 1px solid rgba(255, 255, 255, 0.065) !important;
        border-radius: 15px !important;
        background: rgba(2, 4, 12, 0.2) !important;
        box-shadow:
            inset 0 1px 2px rgba(0, 0, 0, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.025) !important;
        -webkit-backdrop-filter: none !important;
        backdrop-filter: none !important;
        transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease !important;
    }

    .modern-sidebar .dsearch-pill:focus-within {
        border-color: rgba(164, 141, 246, 0.24) !important;
        background: rgba(3, 5, 14, 0.31) !important;
        box-shadow: 0 0 0 3px rgba(145, 119, 234, 0.045), inset 0 1px 2px rgba(0, 0, 0, 0.15) !important;
    }

    .modern-sidebar .dsearch-icon {
        display: grid;
        width: 20px;
        flex: 0 0 20px;
        place-items: center;
        padding: 0;
        color: rgba(191, 185, 208, 0.42);
        font-size: 0.68rem;
        opacity: 1;
    }

    .modern-sidebar .dsearch-field {
        min-width: 0;
        flex: 1;
    }

    .modern-sidebar .dsearch-field input {
        width: 100%;
        padding: 0;
        border: 0;
        outline: 0;
        background: transparent;
        color: var(--ds-text);
        font-size: 0.76rem;
        font-weight: 500;
    }

    .modern-sidebar .dsearch-field input::placeholder {
        color: rgba(179, 174, 194, 0.36);
        font-size: 0.76rem;
        opacity: 1;
    }

    .modern-sidebar .dsearch-clear {
        width: 25px;
        height: 25px;
        place-items: center;
        border: 0;
        border-radius: 9px;
        background: rgba(255, 255, 255, 0.035);
        color: rgba(207, 201, 220, 0.5);
        font-size: 0.48rem;
    }

    .modern-sidebar .dsearch-clear.visible {
        display: grid;
    }

    .modern-sidebar .dsearch-new {
        display: none !important;
    }

    /* Segmented navigation */
    .modern-sidebar > .sidebar-tabs {
        display: flex;
        min-height: 45px;
        flex: 0 0 auto !important;
        gap: 3px;
        margin: 2px 14px 8px;
        padding: 3px !important;
        border: 1px solid rgba(255, 255, 255, 0.055);
        border-radius: 15px;
        background: rgba(2, 4, 12, 0.16);
        box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.13);
    }

    .modern-sidebar .sidebar-tab {
        position: relative;
        display: flex;
        min-height: 36px;
        flex: 1;
        align-items: center;
        justify-content: center;
        gap: 7px;
        padding: 6px 9px;
        border: 1px solid transparent !important;
        border-radius: 11px !important;
        background: transparent !important;
        color: rgba(187, 181, 202, 0.43) !important;
        box-shadow: none !important;
        font-size: 0.68rem;
        font-weight: 620;
        transition: color 150ms ease, background 150ms ease, border-color 150ms ease !important;
    }

    .modern-sidebar .sidebar-tab::after {
        display: none !important;
    }

    .modern-sidebar .sidebar-tab i {
        color: inherit !important;
        font-size: 0.65rem;
        opacity: 0.72;
        transform: none !important;
    }

    .modern-sidebar .sidebar-tab:hover {
        transform: none !important;
        color: rgba(225, 219, 238, 0.68) !important;
        background: rgba(255, 255, 255, 0.025) !important;
    }

    .modern-sidebar .sidebar-tab.active {
        border-color: rgba(255, 255, 255, 0.065) !important;
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.009)),
            rgba(119, 94, 206, 0.16) !important;
        color: rgba(239, 234, 252, 0.9) !important;
        box-shadow: 0 4px 13px rgba(34, 24, 82, 0.13), inset 0 1px 0 rgba(255, 255, 255, 0.055) !important;
    }

    .modern-sidebar .sidebar-tab:active {
        transform: scale(0.97) !important;
    }

    /* Security notification */
    .modern-sidebar .sidebar-notif {
        width: auto;
        margin: 0 12px 8px;
        padding: 10px;
        border: 1px solid rgba(247, 184, 78, 0.13);
        border-radius: 17px;
        background: rgba(79, 56, 18, 0.16);
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
    }

    /* Scrollable content */
    .modern-sidebar > .sidebar-content {
        position: relative;
        display: block;
        width: 100%;
        height: 0 !important;
        min-height: 0 !important;
        max-height: none !important;
        flex: 1 1 0% !important;
        padding: 3px 9px 10px !important;
        overflow-x: hidden !important;
        overflow-y: auto !important;
        scrollbar-gutter: auto;
        scrollbar-color: rgba(210, 203, 227, 0.1) transparent;
        scrollbar-width: thin;
        mask-image: linear-gradient(to bottom, #000 0, #000 calc(100% - 7px), transparent 100%);
    }

    .modern-sidebar > .sidebar-content::-webkit-scrollbar {
        width: 4px;
    }

    .modern-sidebar > .sidebar-content::-webkit-scrollbar-thumb {
        border-radius: 999px;
        background: rgba(210, 203, 227, 0.1);
    }

    .modern-sidebar .mobile-chats-heading,
    .modern-sidebar .pull-hint {
        display: none !important;
    }

    /* Folder chips */
    .modern-sidebar .folder-tabs-wrap {
        margin: 2px 2px 8px;
    }

    .modern-sidebar .folder-tabs {
        display: flex;
        gap: 5px;
        padding: 2px 1px 5px;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .modern-sidebar .folder-tabs::-webkit-scrollbar {
        display: none;
    }

    .modern-sidebar .folder-tab {
        min-height: 30px;
        gap: 5px;
        padding: 5px 10px;
        border: 1px solid rgba(255, 255, 255, 0.055);
        border-radius: 11px;
        background: rgba(255, 255, 255, 0.02);
        color: var(--ds-muted);
        font-size: 0.61rem;
        font-weight: 630;
    }

    .modern-sidebar .folder-tab:hover,
    .modern-sidebar .folder-tab.active {
        border-color: rgba(166, 143, 242, 0.16);
        background: rgba(139, 112, 230, 0.085);
        color: rgba(225, 216, 250, 0.78);
    }

    /* Suggestion card */
    .modern-sidebar .sidebar-sys-items {
        display: contents;
    }

    .modern-sidebar .sys-suggest-banner {
        position: sticky;
        z-index: 24;
        top: -3px;
        isolation: isolate;
        min-height: 72px;
        gap: 10px;
        margin: 0 1px 9px;
        padding: 10px 11px;
        overflow: hidden;
        border: 1px solid rgba(184, 159, 255, 0.22);
        border-radius: 18px;
        background:
            radial-gradient(circle at 10% 20%, rgba(188, 146, 255, 0.22), transparent 40%),
            linear-gradient(115deg, rgba(102, 83, 205, 0.2), rgba(145, 91, 217, 0.13) 29%, rgba(68, 153, 211, 0.13) 56%, rgba(102, 211, 174, 0.09) 76%, rgba(113, 83, 207, 0.2)),
            rgba(10, 12, 26, 0.87);
        background-position: 0% 50%, 0% 50%, 0 0;
        background-size: auto, 100% 100%, auto;
        box-shadow:
            0 12px 30px rgba(22, 15, 63, 0.3),
            0 3px 10px rgba(0, 0, 0, 0.16),
            inset 0 1px 0 rgba(255, 255, 255, 0.1);
        transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease !important;
    }

    .modern-sidebar .sys-suggest-banner::before {
        top: 11px;
        bottom: 11px;
        left: 0;
        width: 3px;
        border-radius: 999px;
        background: linear-gradient(180deg, #d6bbff, #a38bff 48%, #55d7c0);
        box-shadow: 0 0 13px rgba(166, 137, 255, 0.48);
    }

    .modern-sidebar .sys-suggest-banner::after {
        content: "";
        position: absolute;
        z-index: 1;
        top: -35%;
        bottom: -35%;
        left: -55%;
        display: block;
        width: 34%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.13), transparent);
        transform: skewX(-18deg);
        pointer-events: none;
    }

    .modern-sidebar .sys-suggest-aurora {
        position: absolute;
        z-index: 0;
        top: -32px;
        right: -20px;
        display: block;
        width: 120px;
        height: 100px;
        border-radius: 50%;
        background: rgba(112, 207, 206, 0.12);
        pointer-events: none;
    }

    .modern-sidebar .sys-suggest-banner:hover,
    .modern-sidebar .sys-suggest-banner:focus-visible {
        transform: translateY(-1px);
        border-color: rgba(205, 184, 255, 0.36);
        box-shadow:
            0 15px 36px rgba(37, 23, 95, 0.38),
            0 4px 12px rgba(0, 0, 0, 0.18),
            inset 0 1px 0 rgba(255, 255, 255, 0.13);
        outline: none;
    }

    .modern-sidebar .sys-suggest-banner:active {
        transform: scale(0.987);
    }

    .modern-sidebar .sys-suggest-icon {
        position: relative;
        z-index: 2;
        display: grid;
        width: 38px;
        height: 38px;
        min-width: 38px;
        place-items: center;
        border: 1px solid rgba(228, 216, 255, 0.18);
        border-radius: 13px;
        background: linear-gradient(145deg, rgba(174, 132, 247, 0.88), rgba(90, 90, 207, 0.86) 55%, rgba(63, 167, 183, 0.78));
        color: rgba(255, 255, 255, 0.96);
        box-shadow:
            0 7px 18px rgba(75, 48, 157, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.22);
        font-size: 0.72rem;
    }

    .modern-sidebar .sys-suggest-info {
        position: relative;
        z-index: 2;
        display: flex;
        min-width: 0;
        flex: 1;
        flex-direction: column;
    }

    .modern-sidebar .sys-suggest-kicker {
        color: rgba(205, 187, 255, 0.72);
        font-size: 0.47rem;
        font-weight: 720;
        letter-spacing: 0.065em;
        text-transform: uppercase;
    }

    .modern-sidebar .sys-suggest-title {
        overflow: hidden;
        margin: 2px 0 1px;
        color: rgba(249, 246, 255, 0.96);
        font-size: 0.72rem;
        font-weight: 680;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .modern-sidebar .sys-suggest-sub {
        color: rgba(219, 213, 235, 0.56);
        font-size: 0.59rem;
    }

    .modern-sidebar .sys-suggest-sub i {
        margin-left: 2px;
        color: rgba(189, 169, 255, 0.82);
        transition: transform 170ms ease;
    }

    .modern-sidebar .sys-suggest-banner:hover .sys-suggest-sub i {
        transform: translateX(3px);
    }

    .modern-sidebar .sys-suggest-time {
        position: absolute;
        top: 8px;
        right: 25px;
        z-index: 2;
        color: rgba(221, 215, 234, 0.4);
        font-size: 0.44rem;
    }

    .modern-sidebar .sys-suggest-close {
        position: absolute;
        top: 6px;
        right: 6px;
        display: grid;
        width: 21px;
        height: 21px;
        place-items: center;
        padding: 0;
        border: 0;
        border-radius: 7px;
        background: transparent;
        z-index: 3;
        color: rgba(229, 224, 240, 0.42);
        font-size: 0.42rem;
        opacity: 1;
    }

    .modern-sidebar .sys-suggest-close:hover {
        background: rgba(255, 255, 255, 0.07);
        color: rgba(255, 255, 255, 0.82);
    }

    @keyframes desktopSuggestFlow {
        0%, 100% { background-position: 0% 50%, 0% 50%, 0 0; }
        50% { background-position: 0% 50%, 100% 50%, 0 0; }
    }

    @keyframes desktopSuggestBreathe {
        0%, 100% { border-color: rgba(184, 159, 255, 0.2); }
        50% { border-color: rgba(137, 202, 226, 0.25); }
    }

    @keyframes desktopSuggestRail {
        0%, 100% { opacity: 0.58; filter: saturate(100%); }
        50% { opacity: 1; filter: saturate(145%); }
    }

    @keyframes desktopSuggestSweep {
        0%, 58% { left: -55%; opacity: 0; }
        64% { opacity: 0.8; }
        82% { left: 125%; opacity: 0; }
        100% { left: 125%; opacity: 0; }
    }

    @keyframes desktopSuggestAurora {
        from { transform: translate3d(0, 0, 0) scale(0.9); opacity: 0.55; }
        to { transform: translate3d(-35px, 22px, 0) scale(1.18); opacity: 1; }
    }

    @keyframes desktopSuggestIcon {
        0%, 100% { background-position: 0% 50%; transform: translateY(0); }
        50% { background-position: 100% 50%; transform: translateY(-1px); }
    }

    /* Saved / archive shortcuts */
    .modern-sidebar .sys-item {
        position: relative;
        display: flex;
        min-height: 57px;
        align-items: center;
        gap: 10px;
        margin: 1px 0;
        padding: 7px 10px;
        border: 1px solid transparent;
        border-radius: 17px;
        background: transparent;
        transition: background 150ms ease, border-color 150ms ease !important;
    }

    .modern-sidebar .sys-item:hover {
        transform: none;
        border-color: rgba(255, 255, 255, 0.045);
        background: rgba(255, 255, 255, 0.028);
    }

    .modern-sidebar .sys-item:active {
        transform: scale(0.985);
    }

    .modern-sidebar .sys-icon {
        display: grid;
        width: 42px;
        height: 42px;
        min-width: 42px;
        place-items: center;
        border: 1px solid rgba(255, 255, 255, 0.075);
        border-radius: 14px;
        color: rgba(225, 219, 244, 0.79);
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.055);
        font-size: 0.72rem;
    }

    .modern-sidebar .sys-icon-saved {
        background: rgba(89, 136, 224, 0.16);
        color: rgba(149, 187, 255, 0.85);
    }

    .modern-sidebar .sys-icon-archive {
        background: rgba(126, 105, 210, 0.14);
        color: rgba(191, 175, 248, 0.82);
    }

    .modern-sidebar .sys-name {
        margin: 0 0 2px;
        color: rgba(239, 236, 247, 0.84);
        font-size: 0.75rem;
        font-weight: 650;
    }

    .modern-sidebar .sys-sub {
        color: var(--ds-muted);
        font-size: 0.61rem;
    }

    .modern-sidebar .sys-badge {
        min-width: 19px;
        height: 19px;
        padding: 0 5px;
        border: 1px solid rgba(216, 203, 255, 0.12);
        background: rgba(132, 103, 225, 0.72);
        box-shadow: none;
        font-size: 0.5rem;
    }

    /* Chat list */
    .modern-sidebar .chats-list,
    .modern-sidebar .contacts-list {
        padding: 2px 0 6px;
    }

    .modern-sidebar .pinned-divider {
        display: flex;
        align-items: center;
        gap: 8px;
        margin: 7px 8px 5px;
    }

    .modern-sidebar .pinned-divider::before,
    .modern-sidebar .pinned-divider::after {
        height: 1px;
        flex: 1;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.04));
    }

    .modern-sidebar .pinned-divider::after {
        background: linear-gradient(90deg, rgba(255, 255, 255, 0.04), transparent);
    }

    .modern-sidebar .pinned-divider span {
        gap: 5px;
        padding: 0;
        border: 0;
        background: transparent;
        color: rgba(185, 179, 200, 0.34);
        font-size: 0.48rem;
        font-weight: 680;
        letter-spacing: 0.055em;
        text-transform: uppercase;
    }

    .modern-sidebar .chat-item {
        position: relative;
        display: flex;
        min-height: 64px;
        align-items: center;
        gap: 10px;
        margin: 1px 0;
        padding: 8px 9px;
        overflow: hidden;
        border: 1px solid transparent;
        border-radius: 18px;
        background: transparent;
        box-shadow: none;
        animation: none !important;
        transition: background 150ms ease, border-color 150ms ease, transform 150ms ease !important;
    }

    .modern-sidebar .chat-item::before {
        content: "";
        position: absolute;
        top: 12px;
        bottom: 12px;
        left: 0;
        width: 2px;
        border-radius: 999px;
        background: transparent;
    }

    .modern-sidebar .chat-item::after {
        display: none !important;
    }

    .modern-sidebar .chat-item:hover {
        transform: none !important;
        border-color: rgba(255, 255, 255, 0.042);
        background: var(--ds-surface-hover);
    }

    .modern-sidebar .chat-item:active {
        transform: scale(0.988) !important;
    }

    .modern-sidebar .chat-item.active {
        border-color: rgba(173, 151, 247, 0.12);
        background:
            linear-gradient(145deg, rgba(156, 130, 239, 0.105), rgba(118, 96, 207, 0.045)),
            rgba(255, 255, 255, 0.016);
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
    }

    .modern-sidebar .chat-item.active::before {
        background: linear-gradient(180deg, rgba(180, 157, 250, 0.9), rgba(116, 101, 218, 0.72));
        box-shadow: 0 0 9px rgba(145, 120, 230, 0.22);
    }

    .modern-sidebar .chat-avatar,
    .modern-sidebar .channel-avatar {
        display: grid;
        width: 46px;
        height: 46px;
        min-width: 46px;
        place-items: center;
        overflow: visible;
        border: 1px solid rgba(255, 255, 255, 0.09);
        border-radius: 15px;
        background: linear-gradient(145deg, rgba(128, 105, 215, 0.96), rgba(77, 67, 158, 0.96));
        color: rgba(255, 255, 255, 0.94);
        box-shadow: 0 7px 18px rgba(28, 21, 73, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.12);
        font-size: 0.76rem;
        font-weight: 720;
        transform: none !important;
        transition: border-color 150ms ease, box-shadow 150ms ease !important;
    }

    .modern-sidebar .chat-avatar::before {
        border-radius: inherit;
        opacity: 0.7;
    }

    .modern-sidebar .chat-item.active .chat-avatar {
        border-color: rgba(203, 187, 255, 0.18);
        box-shadow: 0 7px 20px rgba(42, 29, 106, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    }

    .modern-sidebar .chat-avatar.online::after {
        right: -2px;
        bottom: -2px;
        width: 11px;
        height: 11px;
        border: 2px solid rgba(10, 13, 25, 0.96);
        background: #55dca6;
        box-shadow: 0 0 0 1px rgba(85, 220, 166, 0.13), 0 0 7px rgba(85, 220, 166, 0.32);
        animation: none;
    }

    .modern-sidebar .chat-info {
        display: flex;
        min-width: 0;
        flex: 1;
        flex-direction: column;
        justify-content: center;
    }

    .modern-sidebar .chat-name {
        overflow: hidden;
        margin: 0 0 3px;
        color: rgba(241, 238, 248, 0.87);
        font-size: 0.76rem;
        font-weight: 650;
        letter-spacing: -0.012em;
        line-height: 1.25;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .modern-sidebar .chat-item.active .chat-name {
        color: rgba(247, 243, 255, 0.95);
    }

    .modern-sidebar .chat-preview {
        overflow: hidden;
        color: var(--ds-muted);
        font-size: 0.63rem;
        font-weight: 480;
        line-height: 1.35;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .modern-sidebar .chat-item.unread .chat-preview {
        color: rgba(211, 204, 224, 0.58);
    }

    .modern-sidebar .chat-meta {
        display: flex;
        min-width: 29px;
        flex: 0 0 auto;
        align-self: stretch;
        flex-direction: column;
        align-items: flex-end;
        justify-content: center;
        gap: 6px;
    }

    .modern-sidebar .chat-time {
        color: rgba(177, 171, 191, 0.35);
        font-size: 0.5rem;
        font-weight: 570;
    }

    .modern-sidebar .chat-item.unread .chat-time {
        color: rgba(178, 158, 242, 0.65);
    }

    .modern-sidebar .unread-badge {
        display: grid;
        min-width: 19px;
        height: 19px;
        place-items: center;
        padding: 0 5px;
        border: 1px solid rgba(211, 196, 255, 0.14);
        border-radius: 8px;
        background: rgba(130, 101, 222, 0.82);
        color: rgba(255, 255, 255, 0.95);
        box-shadow: none;
        font-size: 0.5rem;
        font-weight: 720;
    }

    .modern-sidebar .chat-pin-icon {
        margin-right: 3px;
        color: rgba(179, 157, 245, 0.56);
        font-size: 0.48rem;
    }

    /* Contacts and search results reuse the same visual rhythm. */
    .modern-sidebar .sidebar-search-results {
        margin: 1px 0 7px;
        padding: 3px;
        border: 1px solid rgba(255, 255, 255, 0.055);
        border-radius: 17px;
        background: rgba(4, 6, 15, 0.28);
    }

    .modern-sidebar .search-result-item {
        display: flex;
        min-height: 56px;
        align-items: center;
        gap: 10px;
        padding: 7px 8px;
        border: 1px solid transparent;
        border-radius: 14px;
        background: transparent;
        color: var(--ds-text);
    }

    .modern-sidebar .search-result-item:hover,
    .modern-sidebar .search-result-item.selected {
        border-color: rgba(255, 255, 255, 0.045);
        background: rgba(255, 255, 255, 0.035);
    }

    .modern-sidebar .search-result-avatar {
        display: grid;
        width: 40px;
        height: 40px;
        flex: 0 0 40px;
        place-items: center;
        border-radius: 13px;
        background: rgba(127, 103, 215, 0.3);
        color: #fff;
        font-size: 0.68rem;
        font-weight: 720;
    }

    .modern-sidebar .search-result-name {
        color: rgba(240, 237, 247, 0.87);
        font-size: 0.72rem;
        font-weight: 650;
    }

    .modern-sidebar .search-result-status {
        color: var(--ds-muted);
        font-size: 0.59rem;
    }

    .modern-sidebar .sidebar-empty {
        display: flex;
        min-height: 180px;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        color: var(--ds-muted);
        text-align: center;
    }

    /* Bottom profile dock */
    .modern-sidebar > .sidebar-dock,
    .modern-sidebar .sidebar-dock,
    html.has-open-chat .modern-sidebar .sidebar-dock {
        position: relative !important;
        z-index: 10 !important;
        display: flex !important;
        width: auto !important;
        min-height: 65px !important;
        height: auto !important;
        max-height: none !important;
        flex: 0 0 auto !important;
        align-items: center !important;
        justify-content: flex-start !important;
        gap: 7px !important;
        margin: 0 9px 9px !important;
        padding: 7px !important;
        overflow: hidden !important;
        border: 1px solid rgba(255, 255, 255, 0.065) !important;
        border-radius: 19px !important;
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.032), rgba(255, 255, 255, 0.008)),
            rgba(3, 5, 14, 0.24) !important;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035) !important;
        -webkit-backdrop-filter: none !important;
        backdrop-filter: none !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
    }

    .modern-sidebar .dock-profile {
        display: flex !important;
        min-width: 0 !important;
        height: 49px !important;
        flex: 1 1 auto !important;
        align-items: center !important;
        gap: 9px !important;
        padding: 5px !important;
        border: 1px solid transparent !important;
        border-radius: 15px !important;
        background: transparent !important;
        box-shadow: none !important;
        visibility: visible !important;
        opacity: 1 !important;
        transition: background 150ms ease, border-color 150ms ease !important;
    }

    .modern-sidebar .dock-profile:hover {
        transform: none !important;
        border-color: rgba(255, 255, 255, 0.04) !important;
        background: rgba(255, 255, 255, 0.027) !important;
    }

    .modern-sidebar .dock-profile::after {
        display: none !important;
        content: none !important;
    }

    .modern-sidebar .dock-avatar {
        position: relative !important;
        display: grid !important;
        width: 38px !important;
        height: 38px !important;
        min-width: 38px !important;
        place-items: center !important;
        overflow: visible;
        border: 1px solid rgba(255, 255, 255, 0.11) !important;
        border-radius: 13px !important;
        background-color: rgba(128, 103, 216, 0.8) !important;
        background-size: cover !important;
        background-position: center !important;
        color: #fff !important;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 6px 14px rgba(32, 23, 83, 0.17) !important;
        font-size: 0.63rem !important;
        font-weight: 720 !important;
    }

    .modern-sidebar .dock-avatar:not([style*="background-image"]) {
        background-image: linear-gradient(145deg, rgba(139, 109, 227, 0.98), rgba(81, 67, 167, 0.98)) !important;
    }

    .modern-sidebar .dock-avatar::after {
        right: -2px !important;
        bottom: -2px !important;
        width: 10px !important;
        height: 10px !important;
        border: 2px solid rgba(9, 12, 23, 0.96) !important;
        background: #54dba5 !important;
        box-shadow: 0 0 6px rgba(84, 219, 165, 0.28) !important;
    }

    .modern-sidebar .dock-info {
        display: flex !important;
        min-width: 0 !important;
        flex: 1 !important;
        flex-direction: column !important;
        justify-content: center !important;
        visibility: visible !important;
        opacity: 1 !important;
    }

    .modern-sidebar .dock-name {
        overflow: hidden !important;
        color: rgba(242, 239, 248, 0.88) !important;
        font-size: 0.74rem !important;
        font-weight: 650 !important;
        letter-spacing: -0.01em !important;
        line-height: 1.25 !important;
        text-overflow: ellipsis !important;
        white-space: nowrap !important;
    }

    .modern-sidebar .dock-status {
        margin-top: 2px;
        color: rgba(87, 218, 166, 0.7) !important;
        font-size: 0.57rem !important;
        font-weight: 570 !important;
        line-height: 1.2 !important;
        opacity: 1 !important;
    }

    .modern-sidebar .dock-chevron {
        display: grid !important;
        width: 18px !important;
        height: 18px !important;
        place-items: center;
        color: rgba(192, 186, 207, 0.25) !important;
        font-size: 0.42rem !important;
        opacity: 1 !important;
        visibility: visible !important;
    }

    .modern-sidebar .dock-actions {
        display: flex !important;
        flex: 0 0 auto !important;
        align-items: center !important;
        gap: 3px !important;
        padding: 0 0 0 7px !important;
        border-left: 1px solid rgba(255, 255, 255, 0.045) !important;
        visibility: visible !important;
        opacity: 1 !important;
    }

    .modern-sidebar .dock-action {
        display: grid;
        width: 34px;
        height: 34px;
        place-items: center;
        padding: 0;
        border: 1px solid transparent !important;
        border-radius: 11px !important;
        background: transparent !important;
        color: rgba(195, 189, 210, 0.37) !important;
        box-shadow: none !important;
        font-size: 0.67rem;
        visibility: visible;
        opacity: 1;
        transition: color 150ms ease, background 150ms ease, border-color 150ms ease !important;
    }

    .modern-sidebar .dock-action:hover {
        transform: none !important;
        border-color: rgba(255, 255, 255, 0.045) !important;
        background: rgba(255, 255, 255, 0.03) !important;
        color: rgba(225, 218, 240, 0.68) !important;
    }

    .modern-sidebar .dock-action:active {
        transform: scale(0.91) !important;
    }

    .modern-sidebar .dock-action[style*="display: none"],
    .modern-sidebar .dock-action[style*="display:none"] {
        display: none !important;
    }

    .modern-sidebar .dock-trailing,
    .modern-sidebar .mobile-tabbar {
        display: none !important;
    }
}

@media (min-width: 769px) and (max-width: 1100px) {
    .modern-sidebar,
    html.has-open-chat .modern-sidebar {
        width: 300px !important;
        min-width: 300px !important;
        flex-basis: 300px !important;
    }

    .modern-sidebar .sidebar-brand-summary,
    .modern-sidebar .sidebar-read-btn,
    .modern-sidebar .sys-suggest-time,
    .modern-sidebar .dock-chevron {
        display: none !important;
    }

    .modern-sidebar .sidebar-header {
        padding-right: 10px !important;
        padding-left: 10px !important;
    }

    .modern-sidebar .chat-item {
        gap: 9px;
        padding-right: 8px;
        padding-left: 8px;
    }

    .modern-sidebar .sys-suggest-banner {
        min-height: 54px;
        padding: 7px 9px;
    }

    .modern-sidebar .sys-suggest-icon {
        width: 34px;
        height: 34px;
        min-width: 34px;
        border-radius: 11px;
    }

    .modern-sidebar .sys-suggest-kicker,
    .modern-sidebar .sys-suggest-sub {
        display: none;
    }

    .modern-sidebar .sys-suggest-title {
        margin: 0;
        font-size: 0.68rem;
    }

    .modern-sidebar .sys-item {
        min-height: 49px;
        padding-top: 5px;
        padding-bottom: 5px;
    }

    .modern-sidebar .sys-icon {
        width: 36px;
        height: 36px;
        min-width: 36px;
        border-radius: 12px;
    }

    .modern-sidebar .sys-sub {
        display: none;
    }
}

@media (min-width: 769px) {
    [data-theme="light"] .modern-sidebar {
        --ds-line: rgba(71, 58, 104, 0.1);
        --ds-line-strong: rgba(71, 58, 104, 0.14);
        --ds-surface: rgba(247, 246, 251, 0.64);
        --ds-surface-soft: rgba(255, 255, 255, 0.32);
        --ds-surface-hover: rgba(87, 67, 134, 0.055);
        --ds-text: rgba(31, 26, 44, 0.9);
        --ds-secondary: rgba(57, 49, 75, 0.62);
        --ds-muted: rgba(69, 61, 86, 0.43);
        background:
            linear-gradient(145deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.14)),
            var(--ds-surface) !important;
        box-shadow: 0 22px 58px rgba(54, 42, 83, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.85) !important;
    }

    [data-theme="light"] .modern-sidebar .sidebar-brand-title,
    [data-theme="light"] .modern-sidebar .chat-name,
    [data-theme="light"] .modern-sidebar .dock-name,
    [data-theme="light"] .modern-sidebar .sys-name,
    [data-theme="light"] .modern-sidebar .sys-suggest-title {
        color: rgba(30, 25, 43, 0.88) !important;
    }

    [data-theme="light"] .modern-sidebar .dsearch-pill,
    [data-theme="light"] .modern-sidebar > .sidebar-tabs,
    [data-theme="light"] .modern-sidebar > .sidebar-dock {
        border-color: rgba(73, 58, 105, 0.085) !important;
        background: rgba(255, 255, 255, 0.28) !important;
    }

    [data-theme="light"] .modern-sidebar .chat-item.active {
        border-color: rgba(111, 85, 188, 0.11);
        background: rgba(119, 93, 203, 0.085);
    }
}

@media (min-width: 769px) and (prefers-reduced-motion: reduce) {
    .modern-sidebar,
    .modern-sidebar *,
    .modern-sidebar *::before,
    .modern-sidebar *::after {
        animation: none !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== Delivery ticks in sidebar chat previews ===== */

.chat-preview-status {
    display: inline-flex;
    align-items: center;
    margin-right: 3px;
    vertical-align: -1px;
}

.chat-preview-status .message-status {
    min-width: 0;
    min-height: 0;
    padding: 0;
    border: none;
    background: none;
    box-shadow: none;
}

.chat-preview-status .message-status i {
    width: auto;
    font-size: 0.56rem;
}

.chat-preview-status [data-status="sent"] {
    color: rgba(195, 190, 211, 0.55);
}

.chat-preview-status [data-status="delivered"] {
    color: rgba(116, 222, 181, 0.9);
}

.chat-preview-status [data-status="read"] {
    color: rgb(178, 148, 255);
    filter: drop-shadow(0 0 3px rgba(150, 110, 255, 0.35));
}

.chat-preview-you {
    color: var(--text-secondary);
}