:root,
[data-theme="dark"] {
    --comm-bg: #09090b;
    --comm-surface: #111113;
    --comm-surface-2: #17171a;
    --comm-surface-3: #1d1d22;
    --comm-border: rgba(255, 255, 255, 0.08);
    --comm-text: #f5f7fb;
    --comm-text-2: rgba(245, 247, 251, 0.62);
    --comm-muted: rgba(255, 255, 255, 0.06);
    --comm-accent: #7b8cff;
    --comm-accent-2: #4ea7ff;
    --comm-danger: #ff5a5f;
    --comm-shadow: 0 24px 70px rgba(0, 0, 0, 0.46);

    /* compatibility aliases used by existing community.css/view_chat.css */
    --comm-text2: var(--comm-text-2);
    --comm-hover: var(--comm-muted);
    --comm-card-bg: var(--comm-surface-2);
    --comm-input-bg: var(--comm-surface-2);
    --comm-ctx-bg: var(--comm-surface);
    --comm-ctx-hover: var(--comm-muted);
    --comm-ctx-danger: var(--comm-danger);
}

[data-theme="light"] {
    --comm-bg: #eef2f8;
    --comm-surface: #ffffff;
    --comm-surface-2: #f6f8fb;
    --comm-surface-3: #edf1f7;
    --comm-border: rgba(20, 25, 35, 0.08);
    --comm-text: #111827;
    --comm-text-2: rgba(17, 24, 39, 0.6);
    --comm-muted: rgba(17, 24, 39, 0.05);
    --comm-accent: #4169ff;
    --comm-accent-2: #5ba7ff;
    --comm-danger: #d9304f;
    --comm-shadow: 0 20px 60px rgba(15, 23, 42, 0.12);

    /* compatibility aliases used by existing community.css/view_chat.css */
    --comm-text2: var(--comm-text-2);
    --comm-hover: var(--comm-muted);
    --comm-card-bg: var(--comm-surface-2);
    --comm-input-bg: var(--comm-surface-2);
    --comm-ctx-bg: var(--comm-surface);
    --comm-ctx-hover: var(--comm-muted);
    --comm-ctx-danger: var(--comm-danger);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    background:
        radial-gradient(circle at top left, rgba(123, 140, 255, 0.15), transparent 36%),
        radial-gradient(circle at right 18%, rgba(78, 167, 255, 0.12), transparent 28%),
        var(--comm-bg);
    color: var(--comm-text);
    margin: 0;
}

body[data-layout="community"] {
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
}

.community-shell .login-gate {
    grid-column: 1 / -1;
    min-height: calc(100vh - 24px);
    display: grid;
    place-items: center;
    padding: clamp(1.25rem, 3vw, 2.5rem);
}

.community-shell .login-gate-card {
    position: relative;
    width: min(560px, 100%);
    padding: clamp(1.5rem, 3.5vw, 2.5rem);
    border-radius: 28px;
    border: 1px solid var(--comm-border);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
        color-mix(in srgb, var(--comm-surface) 96%, transparent);
    box-shadow: var(--comm-shadow);
    backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    overflow: hidden;
}

.community-shell .login-gate-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 4px;
    background: linear-gradient(90deg, var(--comm-accent), var(--comm-accent-2));
}

.community-shell .login-gate-card h2 {
    margin: 0;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    line-height: 1.1;
    letter-spacing: -0.05em;
}

.community-shell .login-gate-card p {
    margin: 0;
    color: var(--comm-text-2);
    line-height: 1.75;
    font-size: 1rem;
}

.community-shell .login-gate-card .btn-primary {
    align-self: flex-start;
    min-height: 48px;
    padding: 0.85rem 1.25rem;
    border-radius: 16px;
    font-weight: 800;
    box-shadow: 0 14px 30px rgba(78, 167, 255, 0.22);
}

body[data-layout="popup"] {
    min-height: 100vh;
    overflow: hidden;
}

body[data-layout="community"],
body[data-layout="popup"] {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

body[data-layout="community"]::-webkit-scrollbar,
body[data-layout="popup"]::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

.community-shell {
    display: grid;
    grid-template-columns: 72px 344px minmax(0, 1fr) auto;
    gap: 0;
    width: min(1600px, calc(100vw - 24px));
    height: calc(100vh - 24px);
    margin: 12px auto;
    overflow: hidden;
    border: 1px solid var(--comm-border);
    border-radius: 28px;
    background: var(--comm-surface);
    background: color-mix(in srgb, var(--comm-surface) 92%, transparent);
    box-shadow: var(--comm-shadow);
    backdrop-filter: blur(18px);
    position: relative;
}

.comm-nav-rail,
.comm-sidebar,
.comm-main,
.comm-info-panel {
    background: var(--comm-surface);
    background: color-mix(in srgb, var(--comm-surface) 92%, transparent);
}

.comm-nav-rail {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 14px 0;
    border-right: 1px solid var(--comm-border);
    gap: 14px;
}

.rail-top,
.rail-tabs,
.rail-folders {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.btn-hamburger,
.rail-tabs .stab,
.rail-folders .folder-tab {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    border: 1px solid transparent;
    color: var(--comm-text-2);
    background: transparent;
    cursor: pointer;
    transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
    min-width: 0;
    min-height: 0;
}

.btn-hamburger:hover,
.rail-tabs .stab:hover:not(.active),
.rail-folders .folder-tab:hover:not(.active) {
    background: var(--comm-muted);
    color: var(--comm-text);
    transform: translateY(-1px);
}

.rail-tabs .stab.active,
.rail-folders .folder-tab.active {
    background: linear-gradient(135deg, var(--comm-accent), var(--comm-accent-2));
    color: #fff;
    box-shadow: 0 10px 24px rgba(78, 167, 255, 0.28);
}

.comm-sidebar {
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--comm-border);
    min-width: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
}

.hamburger-menu {
    position: absolute;
    left: 18px;
    top: 72px;
    min-width: 240px;
    border-radius: 18px;
    border: 1px solid var(--comm-border);
    background: color-mix(in srgb, var(--comm-surface) 96%, transparent);
    box-shadow: var(--comm-shadow);
    backdrop-filter: blur(16px);
    padding: 8px;
    z-index: 14000;
}

.hamburger-menu .hm-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 10px 12px;
    border-bottom: 1px solid var(--comm-border);
    margin-bottom: 6px;
}

.hamburger-menu .hm-avatar {
    width: 42px;
    height: 42px;
    border-radius: 16px;
    background: var(--comm-surface-3);
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
}

.hamburger-menu .hm-meta {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hamburger-menu .hm-name {
    font-weight: 800;
    color: var(--comm-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hamburger-menu .hm-sub {
    font-size: 0.82rem;
    color: var(--comm-text-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hm-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 14px;
    color: var(--comm-text);
    cursor: pointer;
    user-select: auto;
    -webkit-user-select: auto;
}

.hm-item i {
    width: 18px;
    color: var(--comm-text-2);
}

.hm-item:hover {
    background: var(--comm-muted);
}

.sidebar-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--comm-border);
}

.sidebar-search {
    position: relative;
}

.sidebar-search input {
    width: 100%;
    border-radius: 18px;
    border: 1px solid var(--comm-border);
    background: var(--comm-surface-2);
    color: var(--comm-text);
    padding: 12px 16px 12px 42px;
    outline: none;
    transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.sidebar-search input:focus {
    border-color: color-mix(in srgb, var(--comm-accent) 55%, white);
    box-shadow: 0 0 0 3px rgba(123, 140, 255, 0.14);
}

.sidebar-search i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--comm-text-2);
}

.chat-room-list {
    flex: 1;
    overflow: auto;
    padding: 10px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.chat-room-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 18px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background .16s ease, transform .16s ease, border-color .16s ease;
    margin-bottom: 8px;
}

.chat-room-item:hover {
    background: var(--comm-muted);
    transform: translateY(-1px);
}

.chat-room-item.active {
    background: rgba(123, 140, 255, 0.14);
    border-color: rgba(123, 140, 255, 0.25);
}

.chat-room-item.pinned {
    border-left: 3px solid var(--comm-accent);
}

.room-avatar,
.chat-header-avatar,
.info-avatar,
.friend-avatar,
.member-avatar,
.user-avatar-mini {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.room-avatar {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    background-color: var(--comm-surface-3);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.2rem;
}

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

.room-name-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.room-name {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    font-weight: 700;
    color: var(--comm-text);
}

.room-type-badge,
.room-folder-tag,
.room-pin-icon,
.room-mute-icon {
    font-size: .7rem;
    padding: 3px 7px;
    border-radius: 999px;
    background: var(--comm-muted);
    color: var(--comm-text-2);
    white-space: nowrap;
}

.room-badge {
    min-width: 24px;
    height: 24px;
    padding: 0 7px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--comm-accent), var(--comm-accent-2));
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .75rem;
    font-weight: 700;
}

.room-preview,
.room-time {
    color: var(--comm-text-2);
    font-size: .82rem;
}

.room-preview {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}

.chat-list-empty,
.no-chat-inner,
.info-empty,
.empty-inline {
    color: var(--comm-text-2);
    text-align: center;
}

.chat-list-empty {
    padding: 32px 20px;
}

.chat-list-empty .empty-ico,
.no-chat-inner i,
.info-loading i {
    font-size: 3rem;
    color: var(--comm-text-2);
    margin-bottom: 12px;
}

.comm-main {
    display: flex;
    flex-direction: column;
    position: relative;
    min-width: 0;
    min-height: 0;
    height: 100%;
    background:
        radial-gradient(circle at top center, rgba(123,140,255,.08), transparent 28%),
        linear-gradient(180deg, rgba(255,255,255,0.02), transparent 38%),
        var(--comm-surface);
}

.no-chat-selected,
.chat-active-area {
    width: 100%;
    height: 100%;
}

.no-chat-selected {
    display: flex;
    align-items: center;
    justify-content: center;
}

.no-chat-inner {
    max-width: 380px;
    padding: 24px;
}

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

.chat-top-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--comm-border);
    background: rgba(255,255,255,0.02);
    backdrop-filter: blur(14px);
}

.btn-back-mobile {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 14px;
    border: 1px solid var(--comm-border);
    background: var(--comm-surface-2);
    color: var(--comm-text);
    min-width: 0;
    min-height: 0;
}

.chat-header-avatar {
    width: 44px;
    height: 44px;
    border-radius: 16px;
    background: var(--comm-surface-3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.chat-header-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.chat-header-name {
    font-weight: 800;
    color: var(--comm-text);
}

.chat-header-status {
    color: var(--comm-text-2);
    font-size: .84rem;
}

.chat-header-actions {
    margin-left: auto;
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.btn-header-icon,
.btn-input-icon-pill,
.btn-send-pill,
.btn-info-action,
.btn-create-group,
.btn-create-folder,
.btn-submit,
.btn-primary,
.settings-theme-btn,
.btn-popup-top,
.btn-mini {
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .16s ease, background .16s ease, border-color .16s ease, opacity .16s ease;
    min-width: 0;
    min-height: 0;
}

.btn-header-icon {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: var(--comm-surface-2);
    color: var(--comm-text);
    border-color: var(--comm-border);
}

.btn-header-icon:hover,
.btn-input-icon-pill:hover,
.btn-info-action:hover,
.btn-create-group:hover,
.btn-create-folder:hover,
.btn-submit:hover,
.settings-theme-btn:hover,
.btn-popup-top:hover,
.btn-mini:hover {
    transform: translateY(-1px);
}

.btn-go-class {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 8px 12px;
    background: var(--comm-surface-2);
    border: 1px solid var(--comm-border);
    color: var(--comm-text);
    text-decoration: none;
    white-space: nowrap;
    min-width: 0;
    min-height: 0;
}

.chat-search-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--comm-border);
    background: var(--comm-surface-2);
}

.chat-search-bar input {
    flex: 1;
    border: 1px solid var(--comm-border);
    background: var(--comm-surface-3);
    color: var(--comm-text);
    border-radius: 14px;
    padding: 10px 14px;
    outline: none;
}

.search-count {
    color: var(--comm-text-2);
    font-size: .82rem;
}

.btn-search-close {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    border: 1px solid var(--comm-border);
    background: var(--comm-surface-3);
    color: var(--comm-text);
    min-width: 0;
    min-height: 0;
}

.pinned-msg-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 12px 16px 0;
    padding: 10px 14px;
    border-radius: 16px;
    background: rgba(123,140,255,.12);
    border: 1px solid rgba(123,140,255,.22);
    color: var(--comm-text);
    cursor: pointer;
    flex-shrink: 0;
}

.pinned-msg-bar .pin-icon {
    color: color-mix(in srgb, var(--comm-accent) 72%, white);
}

.pinned-msg-content {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-messages-container {
    flex: 1;
    overflow: auto;
    padding: 18px 18px 8px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 10px;
    min-height: 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.chat-messages-container::-webkit-scrollbar,
.chat-room-list::-webkit-scrollbar,
.info-panel-body::-webkit-scrollbar,
.modal-body::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

.chat-messages-container::-webkit-scrollbar-thumb,
.chat-room-list::-webkit-scrollbar-thumb,
.info-panel-body::-webkit-scrollbar-thumb,
.modal-body::-webkit-scrollbar-thumb {
    background: transparent;
}

.msg-row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.msg-row.mine {
    justify-content: flex-end;
}

.msg-avatar {
    width: 36px;
    height: 36px;
    border-radius: 14px;
    background: var(--comm-surface-3);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.msg-bubble-wrap {
    max-width: min(82%, 760px);
    min-width: 0;
}

.msg-sender-name {
    display: block;
    margin-bottom: 4px;
    color: var(--comm-text-2);
    font-size: .8rem;
}

.msg-content-area .msg-bubble {
    background: var(--comm-surface-2);
    border: 1px solid var(--comm-border);
    border-radius: 18px;
    padding: 12px 14px;
    color: var(--comm-text);
    line-height: 1.52;
    overflow-wrap: anywhere;
}

.msg-row.pinned .msg-content-area .msg-bubble {
    border-color: rgba(123,140,255,.36);
    box-shadow: 0 10px 30px rgba(123, 140, 255, 0.12);
}

.msg-row.mine .msg-content-area .msg-bubble {
    background: linear-gradient(135deg, var(--comm-accent), var(--comm-accent-2));
    color: #fff;
    border-color: transparent;
}

.msg-bubble.gathering-card {
    width: min(100%, 380px);
    padding: 16px;
    border-radius: 22px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--comm-surface-2) 92%, transparent), color-mix(in srgb, var(--comm-surface) 92%, transparent));
    border: 1px solid var(--comm-border);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.18);
}

.gathering-header h4 {
    margin: 0;
    font-size: 1.02rem;
    font-weight: 800;
    line-height: 1.35;
    color: var(--comm-text);
}

.gathering-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.gathering-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--comm-text-2);
    font-size: .9rem;
    line-height: 1.5;
    word-break: break-word;
}

.gathering-detail-item i {
    margin-top: 2px;
    color: var(--comm-accent);
    width: 16px;
    flex-shrink: 0;
}

.gathering-progress-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-top: 2px;
}

.gathering-progress-bar {
    width: 100%;
    height: 9px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.08);
}

.gathering-progress-fill {
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--comm-accent), var(--comm-accent-2));
}

.gathering-footer {
    display: flex;
    justify-content: flex-end;
}

.gathering-actions {
    display: flex;
    gap: 8px;
    width: 100%;
}

.btn-gathering-action {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--comm-border);
    border-radius: 14px;
    padding: 10px 12px;
    background: var(--comm-surface-2);
    color: var(--comm-text);
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform .16s ease, background .16s ease, border-color .16s ease, opacity .16s ease;
}

.btn-gathering-action:hover:not(:disabled) {
    transform: translateY(-1px);
    border-color: rgba(123,140,255,.34);
}

.msg-reply-quote {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 8px;
    padding: 10px 12px;
    border-radius: 14px;
    background: color-mix(in srgb, var(--comm-surface) 88%, transparent);
    border-left: 3px solid var(--comm-accent);
    color: var(--comm-text);
    cursor: pointer;
    overflow: hidden;
}

.msg-reply-quote:hover {
    border-left-color: var(--comm-accent-2);
}

.reply-quote-user {
    font-size: .78rem;
    font-weight: 800;
    color: var(--comm-accent);
    letter-spacing: -.01em;
}

.reply-quote-content {
    font-size: .84rem;
    color: var(--comm-text-2);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.msg-row.mine .msg-reply-quote {
    background: rgba(255, 255, 255, 0.14);
    border-left-color: rgba(255, 255, 255, 0.75);
    color: #fff;
}

.msg-row.mine .reply-quote-user,
.msg-row.mine .reply-quote-content {
    color: rgba(255, 255, 255, 0.92);
}

.msg-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    color: var(--comm-text-2);
    font-size: .74rem;
}

.msg-reactions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.reaction-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--comm-surface-2);
    border: 1px solid var(--comm-border);
    color: var(--comm-text);
    cursor: pointer;
}

.reaction-pill.mine {
    border-color: rgba(123,140,255,.28);
    background: rgba(123,140,255,.12);
}

.msg-context-menu {
    position: fixed;
    z-index: 12000;
    min-width: 250px;
    padding: 8px;
    border-radius: 18px;
    border: 1px solid var(--comm-border);
    background: color-mix(in srgb, var(--comm-surface) 96%, transparent);
    box-shadow: var(--comm-shadow);
    backdrop-filter: blur(18px);
}

.ctx-divider {
    height: 1px;
    margin: 6px 0;
    background: var(--comm-border);
}

.ctx-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 14px;
    color: var(--comm-text);
    cursor: pointer;
}

.ctx-item:hover {
    background: var(--comm-muted);
}

.ctx-item.danger {
    color: #ff7b82;
}

.msg-quick-react-bar {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 6px;
}

.quick-emoji {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    min-height: 32px;
    border-radius: 12px;
    background: var(--comm-surface-2);
    border: 1px solid var(--comm-border);
    cursor: pointer;
}

.btn-scroll-bottom {
    position: absolute;
    right: 18px;
    bottom: 110px;
    width: 48px;
    height: 48px;
    border-radius: 16px;
    border: 1px solid var(--comm-border);
    background: var(--comm-surface-2);
    color: var(--comm-text);
    box-shadow: var(--comm-shadow);
}

.reply-preview {
    margin: 0 18px;
    padding: 10px 14px;
    border-radius: 16px 16px 0 0;
    background: var(--comm-surface-2);
    border: 1px solid var(--comm-border);
    border-bottom: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 54px;
    flex-shrink: 0;
}

.reply-preview-content {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.reply-preview-content i {
    color: var(--comm-accent);
    margin-top: 3px;
    flex-shrink: 0;
}

.reply-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.reply-preview-name {
    font-size: .8rem;
    font-weight: 800;
    color: var(--comm-accent);
}

.reply-preview-snippet {
    font-size: .86rem;
    color: var(--comm-text-2);
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.btn-reply-cancel,
.btn-reply-close {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    border: 1px solid var(--comm-border);
    background: var(--comm-surface);
    color: var(--comm-text-2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    min-width: 0;
    min-height: 0;
}

.file-drop-overlay {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, .45);
    z-index: 15;
}

.file-drop-overlay.active {
    display: flex;
}

.chat-input-area {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    padding: 14px 18px 18px;
    border-top: 1px solid var(--comm-border);
    background: rgba(255,255,255,0.02);
    flex-shrink: 0;
}

.input-pill-wrapper {
    flex: 1;
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 10px;
    border-radius: 22px;
    background: var(--comm-surface-2);
    border: 1px solid var(--comm-border);
}

.input-pill-wrapper textarea {
    flex: 1;
    min-height: 44px;
    max-height: 120px;
    resize: none;
    border: 0;
    outline: none;
    color: var(--comm-text);
    background: transparent;
    line-height: 1.55;
}

.btn-input-icon-pill {
    width: 38px;
    height: 38px;
    border-radius: 14px;
    background: var(--comm-surface-3);
    border-color: var(--comm-border);
    color: var(--comm-text);
    flex-shrink: 0;
}

.btn-send-pill {
    width: 52px;
    height: 52px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--comm-accent), var(--comm-accent-2));
    color: #fff;
    box-shadow: 0 16px 36px rgba(78, 167, 255, .26);
}

.comm-info-panel {
    width: 0;
    min-width: 0;
    border-left: 1px solid var(--comm-border);
    background: color-mix(in srgb, var(--comm-surface) 94%, transparent);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width .28s ease, min-width .28s ease, box-shadow .28s ease;
    box-shadow: none;
    z-index: 12;
    position: relative;
    flex-shrink: 0;
}

.comm-info-panel.visible {
    width: 340px;
    min-width: 340px;
    box-shadow: -18px 0 48px rgba(0, 0, 0, 0.26);
}

.info-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--comm-border);
}

.info-panel-body {
    flex: 1;
    overflow: auto;
    padding: 16px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.info-pinned-section {
    margin-top: 16px;
}

.info-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--comm-text-2);
    font-size: .82rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.info-pinned-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.info-pinned-item {
    width: 100%;
    text-align: left;
    border-radius: 16px;
    border: 1px solid var(--comm-border);
    background: var(--comm-surface-2);
    color: var(--comm-text);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    transition: transform .16s ease, border-color .16s ease, background .16s ease;
}

.info-pinned-item:hover {
    transform: translateY(-1px);
    border-color: rgba(123,140,255,.32);
    background: color-mix(in srgb, var(--comm-surface-2) 88%, var(--comm-accent) 12%);
}

.info-pinned-item-title {
    font-size: .88rem;
    font-weight: 800;
    color: var(--comm-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.info-pinned-item-snippet {
    font-size: .82rem;
    color: var(--comm-text-2);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.info-pinned-item-meta {
    font-size: .72rem;
    color: var(--comm-text-2);
}

.info-profile-section,
.class-summary,
.class-stats,
.friend-card,
.member-card,
.setting-row,
.settings-theme-btn {
    border: 1px solid var(--comm-border);
    background: var(--comm-surface-2);
}

.info-profile-section {
    padding: 18px;
    border-radius: 20px;
    text-align: center;
}

.info-avatar,
.member-avatar,
.friend-avatar {
    width: 58px;
    height: 58px;
    border-radius: 20px;
    background: var(--comm-surface-3);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.info-name {
    margin: 12px 0 4px;
    font-size: 1.1rem;
    color: var(--comm-text);
}

.info-id,
.info-description {
    color: var(--comm-text-2);
    font-size: .9rem;
}

.info-divider {
    height: 1px;
    margin: 14px 0;
    background: var(--comm-border);
}

.info-actions {
    display: flex;
    gap: 10px;
}

.btn-info-action {
    width: 100%;
    border-radius: 16px;
    padding: 12px 14px;
    background: linear-gradient(135deg, var(--comm-accent), var(--comm-accent-2));
    color: #fff;
    font-weight: 700;
}

.new-chat-modal {
    position: fixed;
    inset: 0;
    z-index: 12000;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,.58);
    backdrop-filter: blur(10px);
    padding: 18px;
}

.modal-card {
    width: min(720px, 100%);
    max-height: min(84vh, 900px);
    border-radius: 24px;
    background: color-mix(in srgb, var(--comm-surface) 96%, transparent);
    border: 1px solid var(--comm-border);
    box-shadow: var(--comm-shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-card-wide {
    width: min(960px, 100%);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--comm-border);
}

.modal-body {
    padding: 18px 20px 20px;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.modal-body input,
.modal-body select {
    width: 100%;
    border-radius: 16px;
    padding: 12px 14px;
    border: 1px solid var(--comm-border);
    background: var(--comm-surface-2);
    color: var(--comm-text);
    outline: none;
}

.user-search-item,
.friend-card,
.member-card,
.folder-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 18px;
    background: var(--comm-surface-2);
    border: 1px solid var(--comm-border);
}

.user-search-item {
    cursor: pointer;
}

.user-search-item:hover {
    border-color: rgba(123,140,255,.25);
    background: rgba(123,140,255,.08);
}

.user-search-meta,
.friend-info,
.member-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.btn-add-contact,
.btn-mini,
.btn-create-group,
.btn-create-folder,
.btn-submit,
.btn-primary,
.settings-theme-btn,
.btn-popup-top {
    border-radius: 14px;
    padding: 10px 14px;
    background: var(--comm-surface-3);
    border-color: var(--comm-border);
    color: var(--comm-text);
}

.btn-create-group,
.btn-submit,
.btn-primary,
.settings-theme-btn,
.btn-popup-top {
    font-weight: 700;
}

.btn-create-group,
.btn-submit,
.btn-primary {
    background: linear-gradient(135deg, var(--comm-accent), var(--comm-accent-2));
    color: #fff;
}

.btn-mini.danger {
    color: var(--comm-danger);
}

.friend-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.friend-block {
    padding: 14px;
    border-radius: 20px;
}

.friend-block-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 700;
    margin-bottom: 10px;
}

.friend-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.friend-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.settings-modal-body {
    display: grid;
    gap: 12px;
}

.settings-theme-btn {
    text-align: left;
}

.setting-row {
    border-radius: 18px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.setting-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

.setting-row select {
    width: auto;
    min-width: 160px;
}

.empty-inline {
    padding: 10px 0;
    text-align: center;
}

.popup-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--comm-border);
    background: rgba(255,255,255,0.03);
}

.popup-topbar-title {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.popup-topbar-actions {
    display: flex;
    gap: 8px;
}

.btn-popup-top {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.message-popup-shell {
    width: 100vw;
    height: 100vh;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto minmax(0, 1fr);
    background:
        radial-gradient(circle at top left, rgba(123, 140, 255, 0.15), transparent 36%),
        radial-gradient(circle at right 18%, rgba(78, 167, 255, 0.12), transparent 28%),
        var(--comm-bg);
    color: var(--comm-text);
    overflow: hidden;
}

.message-popup-shell .popup-topbar {
    grid-column: 1 / -1;
}

.popup-main {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    height: 100%;
    overflow: hidden;
}

.message-popup-shell .comm-info-panel {
    width: 0 !important;
    min-width: 0 !important;
    overflow: hidden !important;
    border-left: 1px solid var(--comm-border) !important;
    background: color-mix(in srgb, var(--comm-surface) 94%, transparent) !important;
    display: flex !important;
    flex-direction: column !important;
    flex-shrink: 0 !important;
    position: relative !important;
    height: 100% !important;
    z-index: 12 !important;
}

.message-popup-shell .comm-info-panel.visible {
    width: 320px !important;
    min-width: 320px !important;
}

body[data-comm-density="compact"] .chat-room-item,
body[data-comm-density="compact"] .friend-card,
body[data-comm-density="compact"] .member-card {
    padding: 10px;
}

body[data-comm-motion="reduce"] * {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
}

[data-theme="light"] .community-shell,
[data-theme="light"] .comm-nav-rail,
[data-theme="light"] .comm-sidebar,
[data-theme="light"] .comm-main,
[data-theme="light"] .comm-info-panel,
[data-theme="light"] .modal-card,
[data-theme="light"] .hamburger-menu,
[data-theme="light"] .msg-context-menu,
[data-theme="light"] .room-context-menu,
[data-theme="light"] .new-chat-modal,
[data-theme="light"] .message-popup-shell,
[data-theme="light"] .popup-topbar,
[data-theme="light"] .chat-top-header,
[data-theme="light"] .chat-search-bar,
[data-theme="light"] .input-pill-wrapper,
[data-theme="light"] .reply-preview,
[data-theme="light"] .pinned-msg-bar,
[data-theme="light"] .chat-room-item,
[data-theme="light"] .room-type-badge,
[data-theme="light"] .room-folder-tag,
[data-theme="light"] .room-preview,
[data-theme="light"] .room-time,
[data-theme="light"] .room-name,
[data-theme="light"] .chat-header-name,
[data-theme="light"] .chat-header-status,
[data-theme="light"] .info-name,
[data-theme="light"] .info-id,
[data-theme="light"] .info-description,
[data-theme="light"] .info-panel-body,
[data-theme="light"] .info-profile-section,
[data-theme="light"] .friend-card,
[data-theme="light"] .member-card,
[data-theme="light"] .user-search-item,
[data-theme="light"] .setting-row,
[data-theme="light"] .settings-theme-btn,
[data-theme="light"] .btn-header-icon,
[data-theme="light"] .btn-input-icon-pill,
[data-theme="light"] .btn-send-pill,
[data-theme="light"] .btn-info-action,
[data-theme="light"] .btn-popup-top,
[data-theme="light"] .btn-go-class,
[data-theme="light"] .btn-scroll-bottom,
[data-theme="light"] .btn-search-close,
[data-theme="light"] .btn-add-contact,
[data-theme="light"] .btn-mini,
[data-theme="light"] .btn-submit,
[data-theme="light"] .btn-primary,
[data-theme="light"] .btn-create-group,
[data-theme="light"] .btn-create-folder {
    background-color: var(--comm-surface) !important;
    color: var(--comm-text) !important;
    border-color: var(--comm-border) !important;
}

[data-theme="light"] .community-shell,
[data-theme="light"] .message-popup-shell {
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08) !important;
}

[data-theme="light"] .comm-nav-rail,
[data-theme="light"] .comm-sidebar,
[data-theme="light"] .comm-main,
[data-theme="light"] .comm-info-panel,
[data-theme="light"] .modal-card,
[data-theme="light"] .hamburger-menu,
[data-theme="light"] .msg-context-menu,
[data-theme="light"] .room-context-menu,
[data-theme="light"] .popup-topbar {
    background: rgba(255, 255, 255, 0.92) !important;
}

[data-theme="light"] .chat-room-item:hover,
[data-theme="light"] .user-search-item:hover,
[data-theme="light"] .ctx-item:hover,
[data-theme="light"] .hm-item:hover,
[data-theme="light"] .btn-popup-top:hover,
[data-theme="light"] .btn-mini:hover,
[data-theme="light"] .btn-add-contact:hover {
    background: rgba(65, 105, 255, 0.08) !important;
}

[data-theme="light"] .chat-room-item.active {
    background: rgba(65, 105, 255, 0.14) !important;
    border-color: rgba(65, 105, 255, 0.22) !important;
}

[data-theme="light"] .room-preview,
[data-theme="light"] .room-time,
[data-theme="light"] .info-id,
[data-theme="light"] .info-description,
[data-theme="light"] .chat-header-status,
[data-theme="light"] .search-count,
[data-theme="light"] .empty-inline,
[data-theme="light"] .chat-list-empty,
[data-theme="light"] .no-chat-inner,
[data-theme="light"] .msg-meta,
[data-theme="light"] .pinned-msg-content,
[data-theme="light"] .reply-text,
[data-theme="light"] .popup-topbar-title span {
    color: var(--comm-text-2) !important;
}

[data-theme="light"] .msg-content-area .msg-bubble,
[data-theme="light"] .reply-preview,
[data-theme="light"] .input-pill-wrapper,
[data-theme="light"] .chat-search-bar,
[data-theme="light"] .pinned-msg-bar,
[data-theme="light"] .info-profile-section,
[data-theme="light"] .friend-card,
[data-theme="light"] .member-card,
[data-theme="light"] .user-search-item,
[data-theme="light"] .setting-row,
[data-theme="light"] .settings-theme-btn {
    background: var(--comm-surface-2) !important;
    color: var(--comm-text) !important;
}

[data-theme="light"] .msg-row.mine .msg-content-area .msg-bubble {
    background: linear-gradient(135deg, var(--comm-accent), var(--comm-accent-2)) !important;
    color: #fff !important;
}

[data-theme="light"] .msg-reactions .reaction-pill,
[data-theme="light"] .quick-emoji,
[data-theme="light"] .room-type-badge,
[data-theme="light"] .room-folder-tag {
    background: rgba(65, 105, 255, 0.08) !important;
    color: var(--comm-text) !important;
}

[data-theme="light"] .chat-messages-container {
    background: linear-gradient(180deg, rgba(255,255,255,0.46), rgba(255,255,255,0.76)) !important;
}

[data-theme="light"] .no-chat-selected,
[data-theme="light"] .chat-list-empty {
    color: var(--comm-text-2) !important;
}

[data-theme="light"] .chat-header-avatar,
[data-theme="light"] .room-avatar,
[data-theme="light"] .msg-avatar,
[data-theme="light"] .info-avatar,
[data-theme="light"] .friend-avatar,
[data-theme="light"] .member-avatar,
[data-theme="light"] .user-avatar-mini {
    background-color: rgba(65, 105, 255, 0.08) !important;
}

[data-theme="light"] .chat-top-header,
[data-theme="light"] .chat-search-bar,
[data-theme="light"] .chat-input-area,
[data-theme="light"] .info-panel-header,
[data-theme="light"] .modal-header,
[data-theme="light"] .popup-topbar {
    border-color: var(--comm-border) !important;
}

@media (max-width: 1280px) {
    .comm-info-panel {
        width: 320px;
    }
}

@media (max-width: 1024px) {
    .community-shell {
        width: calc(100vw - 12px);
        grid-template-columns: 72px minmax(0, 1fr);
    }
    .comm-sidebar {
        position: absolute;
        left: 72px;
        top: 0;
        bottom: 0;
        width: 340px;
        z-index: 20;
        transform: translateX(0);
        transition: transform .24s ease;
    }
    .comm-sidebar.hidden {
        transform: translateX(-102%);
    }
    .comm-info-panel {
        width: min(100%, 340px);
    }
    .btn-back-mobile {
        display: inline-flex;
    }
}

@media (max-width: 768px) {
    .community-shell {
        width: 100vw;
        height: calc(100vh - 8px);
        margin: 4px auto 0;
        border-radius: 20px 20px 0 0;
        grid-template-columns: 64px minmax(0, 1fr);
    }
    .comm-nav-rail {
        padding: 10px 0;
    }
    .comm-sidebar {
        width: calc(100vw - 64px);
        left: 64px;
    }
    .comm-info-panel {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        min-width: 0;
    }
    .comm-info-panel.visible {
        width: 92vw;
        min-width: 0;
    }
    .message-popup-shell {
        grid-template-columns: 1fr;
        grid-template-rows: auto minmax(0, 1fr);
    }
    .message-popup-shell .popup-topbar {
        grid-column: 1;
    }
    .message-popup-shell .comm-info-panel {
        position: fixed !important;
        inset: 0 0 0 auto !important;
        max-width: 360px !important;
        min-width: 0 !important;
        width: 0 !important;
        height: 100vh !important;
        border-left: 1px solid var(--comm-border) !important;
        box-shadow: -18px 0 48px rgba(0, 0, 0, 0.26) !important;
    }
    .message-popup-shell .comm-info-panel.visible {
        width: 92vw !important;
        max-width: 360px !important;
        min-width: 0 !important;
    }
    .friend-grid {
        grid-template-columns: 1fr;
    }
    .popup-topbar {
        padding: 12px 14px;
    }
.popup-topbar-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
    }
}

/* ============================================================
   Final Community Surface Polish
============================================================ */

body[data-layout="community"],
body[data-layout="popup"] {
    background:
        radial-gradient(circle at top left, rgba(123, 140, 255, 0.20), transparent 34%),
        radial-gradient(circle at 88% 18%, rgba(78, 167, 255, 0.12), transparent 24%),
        radial-gradient(circle at bottom right, rgba(255, 90, 95, 0.08), transparent 22%),
        var(--comm-bg);
    color: var(--comm-text);
    user-select: text;
    -webkit-user-select: text;
}

body[data-layout="community"] *,
body[data-layout="popup"] * {
    -webkit-tap-highlight-color: transparent;
}

.community-shell,
.message-popup-shell {
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.5);
    border-color: color-mix(in srgb, var(--comm-border) 92%, transparent);
}

.community-shell {
    width: min(1680px, calc(100vw - 16px));
    height: calc(100vh - 16px);
    margin: 8px auto;
    border-radius: 30px;
    grid-template-columns: 76px minmax(332px, 372px) minmax(0, 1fr) minmax(300px, 340px);
}

.comm-nav-rail {
    padding: 16px 0;
    gap: 12px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent);
}

.rail-top,
.rail-tabs,
.rail-folders {
    gap: 12px;
}

.btn-hamburger,
.rail-tabs .stab,
.rail-folders .folder-tab {
    width: 52px;
    height: 52px;
    border-radius: 18px;
}

.btn-hamburger {
    border: 1px solid var(--comm-border);
    background: color-mix(in srgb, var(--comm-surface-2) 94%, transparent);
}

.comm-sidebar {
    min-width: 332px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--comm-surface) 96%, transparent), color-mix(in srgb, var(--comm-surface-2) 96%, transparent));
}

.sidebar-header {
    padding: 18px 18px 14px;
}

.sidebar-search {
    padding: 12px 14px;
    border-radius: 16px;
    gap: 10px;
    border: 1px solid var(--comm-border);
    background: color-mix(in srgb, var(--comm-surface-2) 94%, transparent);
}

.sidebar-search input {
    min-height: 40px;
    font-size: 0.95rem;
}

.chat-room-list {
    padding: 12px;
    gap: 10px;
}

.chat-room-item {
    min-height: 76px;
    padding: 12px 14px;
    border-radius: 18px;
    border: 1px solid transparent;
    background: color-mix(in srgb, var(--comm-surface-2) 94%, transparent);
}

.chat-room-item:hover {
    border-color: color-mix(in srgb, var(--comm-border) 88%, transparent);
    transform: translateY(-1px);
}

.chat-room-item.active {
    border-color: color-mix(in srgb, var(--comm-accent) 26%, var(--comm-border));
    background: linear-gradient(135deg, color-mix(in srgb, var(--comm-accent) 14%, var(--comm-surface-2)), color-mix(in srgb, var(--comm-accent-2) 10%, var(--comm-surface-2)));
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.16);
}

.room-name,
.room-preview,
.chat-header-name,
.chat-header-status,
.pinned-msg-content,
.info-panel-body,
.modal-body,
.no-chat-inner {
    user-select: text;
    -webkit-user-select: text;
}

.comm-main {
    background:
        radial-gradient(circle at top, rgba(255, 255, 255, 0.04), transparent 32%),
        linear-gradient(180deg, color-mix(in srgb, var(--comm-main-bg) 96%, transparent), color-mix(in srgb, var(--comm-bg) 92%, transparent));
}

.chat-top-header {
    min-height: 72px;
    padding: 14px 18px;
    gap: 14px;
    border-bottom: 1px solid color-mix(in srgb, var(--comm-border) 96%, transparent);
}

.chat-header-info {
    min-width: 0;
    gap: 4px;
}

.chat-header-name {
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.chat-header-status {
    font-size: 0.84rem;
    color: var(--comm-text-2);
}

.chat-header-actions {
    gap: 8px;
}

.chat-search-bar {
    margin: 0 18px 12px;
    padding: 10px 14px;
    gap: 10px;
    border-radius: 16px;
    border: 1px solid var(--comm-border);
    background: color-mix(in srgb, var(--comm-surface-2) 96%, transparent);
}

.chat-search-bar input {
    min-height: 42px;
    font-size: 0.95rem;
}

.pinned-msg-bar {
    margin: 0 18px 12px;
    padding: 12px 14px;
    border-radius: 18px;
    border: 1px solid color-mix(in srgb, var(--comm-border) 88%, transparent);
    background: color-mix(in srgb, var(--comm-surface-2) 94%, transparent);
}

.chat-messages-container {
    padding: 18px 18px 14px;
    gap: 12px;
}

.chat-input-area {
    padding: 14px 18px 18px;
    gap: 12px;
    border-top: 1px solid color-mix(in srgb, var(--comm-border) 96%, transparent);
    background: linear-gradient(180deg, color-mix(in srgb, var(--comm-surface-2) 90%, transparent), color-mix(in srgb, var(--comm-surface) 96%, transparent));
}

.input-pill-wrapper {
    min-height: 60px;
    padding: 8px 10px;
    border-radius: 20px;
    border: 1px solid var(--comm-border);
    background: color-mix(in srgb, var(--comm-surface-2) 94%, transparent);
}

#msgInput {
    min-height: 42px;
    line-height: 1.55;
    font-size: 0.96rem;
}

.btn-header-icon,
.btn-input-icon-pill,
.btn-send-pill,
.btn-search-close,
.btn-reply-cancel,
.btn-close-panel,
.btn-close-modal,
.btn-go-class,
.btn-popup-top {
    min-height: 44px;
    min-width: 44px;
    border-radius: 16px;
}

.btn-header-icon,
.btn-input-icon-pill {
    background: color-mix(in srgb, var(--comm-surface-2) 94%, transparent);
    border: 1px solid transparent;
}

.btn-header-icon:hover,
.btn-input-icon-pill:hover,
.btn-send-pill:hover,
.btn-popup-top:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--comm-border) 80%, transparent);
}

.btn-send-pill {
    background: linear-gradient(135deg, var(--comm-accent), var(--comm-accent-2));
    box-shadow: 0 12px 28px rgba(78, 167, 255, 0.28);
}

.no-chat-selected {
    padding: 28px;
}

.no-chat-inner {
    max-width: 420px;
    padding: 28px 24px;
    border-radius: 28px;
    border: 1px solid var(--comm-border);
    background: linear-gradient(180deg, color-mix(in srgb, var(--comm-surface-2) 94%, transparent), color-mix(in srgb, var(--comm-surface) 92%, transparent));
    box-shadow: var(--comm-shadow);
}

.no-chat-inner h3 {
    margin-top: 4px;
    font-size: 1.45rem;
    letter-spacing: -0.02em;
}

.no-chat-inner p {
    margin-top: 0.6rem;
    color: var(--comm-text-2);
}

.comm-info-panel {
    min-width: 300px;
    width: 320px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--comm-surface) 96%, transparent), color-mix(in srgb, var(--comm-surface-2) 92%, transparent));
}

.info-panel-header {
    min-height: 72px;
    padding: 16px 18px;
    align-items: center;
}

.info-panel-body {
    padding: 16px 18px 20px;
}

.modal-card {
    border-radius: 24px;
    border: 1px solid color-mix(in srgb, var(--comm-border) 90%, transparent);
    background: linear-gradient(180deg, color-mix(in srgb, var(--comm-surface) 98%, transparent), color-mix(in srgb, var(--comm-surface-2) 96%, transparent));
}

.modal-header {
    padding: 16px 18px;
}

.modal-body {
    padding: 18px;
    gap: 12px;
}

.friend-card {
    border-radius: 18px;
    border: 1px solid color-mix(in srgb, var(--comm-border) 90%, transparent);
}

.message-popup-shell {
    width: min(1560px, calc(100vw - 0px));
    height: 100vh;
    margin: 0;
    border: none;
    border-radius: 0;
    grid-template-columns: minmax(0, 1fr) 340px;
}

.message-popup-shell .popup-topbar {
    min-height: 70px;
    padding: 14px 18px;
    border-bottom: 1px solid color-mix(in srgb, var(--comm-border) 96%, transparent);
}

.message-popup-shell .comm-info-panel {
    width: 0 !important;
    min-width: 0 !important;
}

.message-popup-shell .comm-info-panel.visible {
    width: 340px !important;
    min-width: 340px !important;
}

@media (max-width: 1024px) {
    .community-shell {
        width: calc(100vw - 10px);
        height: calc(100vh - 10px);
        margin: 5px auto;
        grid-template-columns: 68px minmax(0, 1fr);
    }

    .comm-sidebar {
        width: min(360px, calc(100vw - 68px));
        min-width: min(360px, calc(100vw - 68px));
    }

    .comm-info-panel {
        position: absolute;
        inset: 0 0 0 auto;
        width: 0;
        min-width: 0;
    }

    .comm-info-panel.visible {
        width: min(340px, 92vw);
        min-width: min(340px, 92vw);
    }
}

@media (max-width: 768px) {
    .community-shell {
        width: 100vw;
        height: calc(100dvh - 6px);
        margin: 3px 0 0;
        border-radius: 22px 22px 0 0;
        grid-template-columns: 64px minmax(0, 1fr);
    }

    .comm-nav-rail {
        padding: 10px 0;
    }

    .comm-sidebar {
        width: calc(100vw - 64px);
        min-width: calc(100vw - 64px);
    }

    .chat-top-header {
        padding: 12px 14px;
        gap: 10px;
        min-height: 66px;
    }

    .chat-search-bar,
    .pinned-msg-bar,
    .chat-messages-container,
    .chat-input-area {
        margin-inline: 12px;
    }

    .chat-input-area {
        padding: 12px 12px calc(12px + env(safe-area-inset-bottom));
        align-items: stretch;
    }

    .input-pill-wrapper {
        min-height: 56px;
        padding: 6px 8px;
        border-radius: 18px;
    }

    .btn-input-icon-pill,
    .btn-send-pill,
    .btn-header-icon {
        width: 42px;
        height: 42px;
        border-radius: 14px;
    }

    .chat-room-item {
        padding: 12px;
        min-height: 70px;
    }

    .no-chat-inner {
        padding: 24px 20px;
    }

    .message-popup-shell {
        grid-template-columns: 1fr;
        grid-template-rows: auto minmax(0, 1fr);
    }

    .message-popup-shell .popup-topbar {
        padding: 12px 14px;
    }

    .message-popup-shell .comm-info-panel.visible {
        width: min(94vw, 360px) !important;
        min-width: min(94vw, 360px) !important;
    }
}

@media (max-width: 480px) {
    .comm-nav-rail {
        width: 60px;
    }

    .community-shell {
        grid-template-columns: 60px minmax(0, 1fr);
    }

    .comm-sidebar {
        width: calc(100vw - 60px);
        min-width: calc(100vw - 60px);
    }

    .chat-top-header {
        padding: 10px 12px;
        gap: 8px;
    }

    .chat-header-actions {
        gap: 6px;
    }

    .chat-messages-container {
        padding: 14px 12px 10px;
    }

    .chat-search-bar,
    .pinned-msg-bar {
        margin-inline: 10px;
        border-radius: 16px;
    }

    .chat-input-area {
        padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
    }
}

@media (max-width: 430px) {
    .community-shell {
        width: 100vw;
        height: calc(100dvh - 4px);
        margin: 2px 0 0;
        border-radius: 18px 18px 0 0;
        grid-template-columns: 56px minmax(0, 1fr);
    }

    .comm-nav-rail {
        padding: 8px 0;
        gap: 8px;
    }

    .rail-top,
    .rail-tabs,
    .rail-folders {
        gap: 8px;
    }

    .btn-hamburger,
    .rail-tabs .stab,
    .rail-folders .folder-tab {
        width: 44px;
        height: 44px;
        border-radius: 14px;
    }

    .comm-sidebar {
        width: calc(100vw - 56px);
        min-width: calc(100vw - 56px);
    }

    .sidebar-header {
        padding: 12px 12px 10px;
    }

    .sidebar-search input {
        min-height: 38px;
        font-size: 0.9rem;
        padding: 10px 12px 10px 38px;
    }

    .chat-room-item {
        min-height: 68px;
        padding: 11px 12px;
    }

    .room-avatar {
        width: 42px;
        height: 42px;
        border-radius: 14px;
    }

    .room-name {
        font-size: 0.94rem;
    }

    .room-preview,
    .room-time {
        font-size: 0.76rem;
    }

    .chat-top-header {
        min-height: 60px;
        padding: 10px 12px;
        gap: 8px;
        flex-wrap: wrap;
        align-items: flex-start;
    }

    .chat-header-avatar {
        width: 38px;
        height: 38px;
        border-radius: 14px;
    }

    .chat-header-name {
        font-size: 0.94rem;
    }

    .chat-header-status {
        font-size: 0.76rem;
    }

    .chat-header-actions {
        gap: 5px;
        margin-left: auto;
        flex-wrap: wrap;
    }

    .btn-go-class {
        padding: 0.5rem 0.75rem;
        font-size: 0.82rem;
    }

    .chat-search-bar,
    .pinned-msg-bar {
        margin-inline: 10px;
        padding: 8px 10px;
        border-radius: 14px;
    }

    .chat-search-bar input {
        min-height: 38px;
        font-size: 0.9rem;
    }

    .chat-messages-container {
        padding: 12px 10px 10px;
        gap: 10px;
    }

    .msg-row {
        gap: 8px;
    }

    .msg-avatar {
        width: 32px;
        height: 32px;
        border-radius: 12px;
    }

    .msg-bubble-wrap {
        max-width: min(92%, 760px);
    }

    .msg-content-area .msg-bubble {
        padding: 10px 12px;
        font-size: 0.92rem;
        line-height: 1.46;
    }

    .chat-input-area {
        padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
        gap: 8px;
    }

    .input-pill-wrapper {
        min-height: 52px;
        padding: 6px 8px;
        border-radius: 16px;
    }

    #msgInput {
        min-height: 38px;
        font-size: 0.9rem;
    }

    .btn-header-icon,
    .btn-input-icon-pill,
    .btn-send-pill,
    .btn-search-close,
    .btn-reply-cancel,
    .btn-close-panel,
    .btn-close-modal,
    .btn-popup-top {
        min-height: 38px;
        min-width: 38px;
        border-radius: 12px;
    }

    .btn-send-pill {
        width: 100%;
    }

    .comm-info-panel.visible {
        width: 88vw !important;
        min-width: 0 !important;
    }

    .modal-card {
        border-radius: 20px;
    }
}

@media (max-width: 390px) {
    .chat-header-status {
        display: none;
    }

    .btn-go-class {
        padding: 0.45rem 0.6rem;
        font-size: 0.76rem;
    }

    .btn-header-icon {
        width: 34px;
        height: 34px;
    }

    .chat-top-header {
        padding: 9px 10px;
    }

    .chat-room-list {
        padding: 10px 8px;
    }
}

@media (max-width: 320px) {
    .community-shell {
        grid-template-columns: 52px minmax(0, 1fr);
    }

    .comm-sidebar {
        width: calc(100vw - 52px);
        min-width: calc(100vw - 52px);
    }

    .btn-go-class {
        width: 38px;
        padding: 0;
        font-size: 0;
        gap: 0;
        justify-content: center;
    }

    .btn-go-class i {
        font-size: 1rem;
    }

    .chat-top-header {
        min-height: 56px;
        padding: 8px 8px;
        gap: 6px;
    }

    .chat-header-name {
        font-size: 0.88rem;
    }

    .chat-messages-container {
        padding: 10px 8px 8px;
        gap: 8px;
    }

    .msg-content-area .msg-bubble {
        padding: 9px 10px;
        font-size: 0.88rem;
        line-height: 1.42;
    }

    .input-pill-wrapper {
        min-height: 48px;
        padding: 5px 6px;
    }

    #msgInput {
        min-height: 34px;
        font-size: 0.84rem;
    }

    .btn-input-icon-pill,
    .btn-send-pill {
        width: 34px;
        height: 34px;
        min-width: 34px;
        min-height: 34px;
        border-radius: 10px;
    }

    .btn-send-pill {
        width: 100%;
        min-height: 40px;
    }
}

@media (max-width: 220px) {
    .community-shell {
        grid-template-columns: 48px minmax(0, 1fr);
        border-radius: 16px 16px 0 0;
    }

    .comm-sidebar {
        width: calc(100vw - 48px);
        min-width: calc(100vw - 48px);
    }

    .btn-hamburger,
    .rail-tabs .stab,
    .rail-folders .folder-tab {
        width: 38px;
        height: 38px;
        border-radius: 12px;
    }

    .sidebar-header {
        padding: 10px 10px 8px;
    }

    .sidebar-search input {
        min-height: 34px;
        font-size: 0.8rem;
        padding-left: 34px;
    }

    .chat-header-name {
        font-size: 0.8rem;
    }

    .chat-header-status {
        display: none;
    }

    .chat-top-header {
        padding: 7px 8px;
        gap: 5px;
    }

    .chat-header-actions {
        gap: 4px;
    }

    .btn-header-icon,
    .btn-input-icon-pill,
    .btn-search-close,
    .btn-reply-cancel,
    .btn-close-panel,
    .btn-close-modal {
        width: 32px;
        height: 32px;
        min-width: 32px;
        min-height: 32px;
        border-radius: 10px;
    }

    .chat-search-bar,
    .pinned-msg-bar {
        margin-inline: 8px;
        padding: 7px 8px;
    }

    .chat-messages-container {
        padding: 8px 7px 6px;
        gap: 7px;
    }

    .msg-avatar {
        width: 28px;
        height: 28px;
        border-radius: 10px;
    }

    .msg-content-area .msg-bubble {
        padding: 8px 9px;
        font-size: 0.8rem;
        line-height: 1.38;
    }

    .chat-input-area {
        padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
    }

    .input-pill-wrapper {
        min-height: 44px;
        padding: 4px 6px;
        border-radius: 14px;
    }

    #msgInput {
        min-height: 30px;
        font-size: 0.78rem;
    }

    .btn-send-pill {
        min-height: 38px;
        border-radius: 10px;
    }
}

/* Compactness pass: unify spacing and reduce oversized elements */
.community-shell {
    width: min(1520px, calc(100vw - 16px));
    height: calc(100vh - 16px);
    margin: 8px auto;
    border-radius: 24px;
    grid-template-columns: 64px 320px minmax(0, 1fr) auto;
}

.comm-nav-rail {
    padding: 10px 0;
    gap: 10px;
}

.rail-top,
.rail-tabs,
.rail-folders {
    gap: 8px;
}

.btn-hamburger,
.rail-tabs .stab,
.rail-folders .folder-tab {
    width: 44px;
    height: 44px;
    border-radius: 14px;
}

.sidebar-header {
    padding: 12px 14px;
}

.sidebar-search input {
    padding: 10px 14px 10px 38px;
    border-radius: 16px;
}

.chat-room-list {
    padding: 8px;
}

.chat-room-item {
    padding: 10px;
    border-radius: 16px;
    margin-bottom: 6px;
    gap: 10px;
}

.room-avatar {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    font-size: 1rem;
}

.room-preview,
.room-time {
    font-size: 0.78rem;
}

.chat-top-header {
    padding: 12px 14px;
    gap: 10px;
}

.btn-back-mobile {
    width: 36px;
    height: 36px;
    border-radius: 12px;
}

.chat-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    font-size: 1rem;
}

.btn-header-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
}

.btn-go-class {
    padding: 7px 10px;
    font-size: 0.82rem;
}

.chat-search-bar {
    padding: 8px 12px;
}

.chat-search-bar input {
    padding: 8px 12px;
    border-radius: 12px;
}

.btn-search-close {
    width: 34px;
    height: 34px;
    border-radius: 10px;
}

.pinned-msg-bar {
    margin: 10px 12px 0;
    padding: 8px 12px;
    border-radius: 14px;
}

.chat-messages-container {
    padding: 14px 14px 6px;
    gap: 8px;
}

.chat-input-area {
    padding: 12px 14px 14px;
    gap: 10px;
}

.input-pill-wrapper {
    padding: 8px;
    border-radius: 18px;
}

.input-pill-wrapper textarea {
    min-height: 40px;
    max-height: 110px;
}

.btn-input-icon-pill {
    width: 34px;
    height: 34px;
    border-radius: 12px;
}

.btn-send-pill {
    width: 46px;
    height: 46px;
    border-radius: 16px;
}

.comm-info-panel.visible {
    width: 300px;
    min-width: 300px;
}

.info-panel-header {
    padding: 14px;
}

.info-panel-body {
    padding: 14px;
}

.info-pinned-item {
    padding: 10px 12px;
    border-radius: 14px;
}

.info-profile-section {
    padding: 14px;
    border-radius: 18px;
}

.info-avatar,
.member-avatar,
.friend-avatar {
    width: 50px;
    height: 50px;
    border-radius: 16px;
}

.message-popup-shell .popup-topbar {
    min-height: 64px;
    padding: 12px 14px;
}

.message-popup-shell .comm-info-panel.visible {
    width: 300px !important;
    min-width: 300px !important;
}

@media (max-width: 1280px) {
    .comm-info-panel.visible {
        width: 280px;
        min-width: 280px;
    }
}

@media (max-width: 1024px) {
    .community-shell {
        width: calc(100vw - 8px);
        height: calc(100vh - 8px);
        margin: 4px auto;
        grid-template-columns: 60px minmax(0, 1fr);
    }

    .comm-sidebar {
        width: min(320px, calc(100vw - 60px));
        min-width: min(320px, calc(100vw - 60px));
    }

    .comm-info-panel.visible {
        width: min(320px, 88vw);
        min-width: min(320px, 88vw);
    }
}

@media (max-width: 768px) {
    .community-shell {
        height: calc(100dvh - 4px);
        margin: 2px 0 0;
        border-radius: 18px 18px 0 0;
        grid-template-columns: 56px minmax(0, 1fr);
    }

    .comm-nav-rail {
        padding: 8px 0;
    }

    .btn-hamburger,
    .rail-tabs .stab,
    .rail-folders .folder-tab {
        width: 40px;
        height: 40px;
        border-radius: 12px;
    }

    .comm-sidebar {
        width: calc(100vw - 56px);
        min-width: calc(100vw - 56px);
    }

    .chat-top-header {
        min-height: 60px;
        padding: 10px 12px;
        gap: 8px;
    }

    .chat-search-bar,
    .pinned-msg-bar,
    .chat-messages-container,
    .chat-input-area {
        margin-inline: 10px;
    }

    .chat-input-area {
        padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
    }

    .input-pill-wrapper {
        min-height: 50px;
    }

    .btn-header-icon,
    .btn-input-icon-pill,
    .btn-send-pill {
        width: 36px;
        height: 36px;
        border-radius: 12px;
    }
}

@media (max-width: 480px) {
    .comm-nav-rail {
        width: 56px;
    }

    .community-shell {
        grid-template-columns: 56px minmax(0, 1fr);
    }

    .comm-sidebar {
        width: calc(100vw - 56px);
        min-width: calc(100vw - 56px);
    }

    .chat-top-header {
        padding: 9px 10px;
    }

    .chat-messages-container {
        padding: 12px 10px 6px;
    }
}