/* ==========================================================================
   UniCarpool Messenger — WhatsApp-style Chat UI
   Extends design-system.css tokens
   ========================================================================== */

/* ── Room container ─────────────────────────────────────────────────────── */
.ucp-room {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 760px;
    height: 80vh;
    min-height: 400px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
    background: var(--ucp-card-bg, #fff);
    border: 1px solid var(--ucp-border, #e0e0e0);
    box-shadow: 0 4px 24px rgba(0,0,0,.08);
    position: relative;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.ucp-room-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #122011;
    color: #fff;
    flex-shrink: 0;
    min-height: 60px;
}

.ucp-room-back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: #fff;
    text-decoration: none;
    transition: background .15s;
    flex-shrink: 0;
}
.ucp-room-back-btn:hover {
    background: rgba(255,255,255,.15);
    color: #fff;
}

.ucp-room-avatar-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--ucp-primary, #1BAF52);
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ucp-room-header-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.ucp-room-header-name {
    font-weight: 600;
    font-size: 15px;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ucp-room-header-sub {
    font-size: 12px;
    color: rgba(255,255,255,.75);
}

/* ── Messages area ──────────────────────────────────────────────────────── */
.ucp-room-msgs {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 16px;
    scroll-behavior: smooth;
}

/* ── Bubbles ────────────────────────────────────────────────────────────── */
.ucp-bubble {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    max-width: 80%;
    position: relative;
}
.ucp-bubble--in  { align-self: flex-start; }
.ucp-bubble--out { align-self: flex-end; flex-direction: row-reverse; }

.ucp-bubble-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    align-self: flex-end;
}

.ucp-bubble-col {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.ucp-bubble-sender {
    font-size: 12px;
    font-weight: 600;
    color: var(--ucp-primary, #1BAF52);
    padding-left: 4px;
}

.ucp-bubble-body {
    padding: 10px 12px;
    border-radius: 4px 16px 16px 16px;
    position: relative;
    word-break: break-word;
    max-width: 100%;
}
.ucp-bubble--in .ucp-bubble-body {
    background: var(--ucp-card-bg, #fff);
    border: 1px solid var(--ucp-border, #e0e0e0);
    border-radius: 4px 16px 16px 16px;
}
.ucp-bubble--out .ucp-bubble-body {
    background: var(--ucp-primary, #1BAF52);
    color: #fff;
    border-radius: 16px 4px 16px 16px;
}

.ucp-bubble-text {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
}
.ucp-bubble--out .ucp-bubble-text { color: #fff; }

.ucp-bubble-time {
    display: block;
    font-size: 11px;
    margin-top: 4px;
    text-align: right;
    opacity: .7;
}
.ucp-bubble--out .ucp-bubble-time { color: rgba(255,255,255,.85); }

/* Quote / reply inside bubble */
.ucp-bubble-quote {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 4px 8px;
    border-left: 3px solid var(--ucp-primary, #1BAF52);
    border-radius: 4px;
    background: rgba(27,175,82,.1);
    margin-bottom: 6px;
}
.ucp-bubble--out .ucp-bubble-quote {
    border-left-color: rgba(255,255,255,.7);
    background: rgba(255,255,255,.15);
}
.ucp-bubble-quote-author {
    font-size: 12px;
    font-weight: 600;
    color: var(--ucp-primary, #1BAF52);
}
.ucp-bubble--out .ucp-bubble-quote-author { color: rgba(255,255,255,.9); }
.ucp-bubble-quote-text {
    font-size: 12px;
    color: var(--ucp-text-muted, #666);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ucp-bubble--out .ucp-bubble-quote-text { color: rgba(255,255,255,.75); }

/* Images & videos */
.ucp-bubble-img {
    display: block;
    max-width: 260px;
    max-height: 320px;
    border-radius: 8px;
    cursor: pointer;
    object-fit: cover;
}
.ucp-bubble-video {
    display: block;
    max-width: 280px;
    border-radius: 8px;
    background: #000;
}

/* Reactions */
.ucp-bubble-reactions {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}
.ucp-reaction-chip {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 7px;
    border-radius: 12px;
    border: 1px solid var(--ucp-border, #e0e0e0);
    background: var(--ucp-card-bg, #fff);
    font-size: 13px;
    cursor: pointer;
    transition: border-color .15s, background .15s;
    line-height: 1.4;
}
.ucp-reaction-chip:hover {
    border-color: var(--ucp-primary, #1BAF52);
    background: rgba(27,175,82,.06);
}
.ucp-reaction-mine {
    border-color: var(--ucp-primary, #1BAF52);
    background: rgba(27,175,82,.12);
    font-weight: 600;
}
.ucp-reaction-chip span {
    font-size: 11px;
    color: var(--ucp-text-muted, #666);
}

/* Context trigger */
.ucp-ctx-trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    cursor: pointer;
    opacity: 0;
    transition: opacity .15s, background .15s;
    flex-shrink: 0;
    align-self: center;
    color: var(--ucp-text-muted, #666);
    padding: 0;
}
.ucp-bubble:hover .ucp-ctx-trigger,
.ucp-bubble:focus-within .ucp-ctx-trigger {
    opacity: 1;
}
.ucp-ctx-trigger:hover { background: var(--ucp-border, #e0e0e0); }

/* Day separator */
.ucp-msg-day-sep {
    text-align: center;
    color: var(--ucp-text-muted, #666);
    font-size: 12px;
    position: relative;
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.ucp-msg-day-sep::before,
.ucp-msg-day-sep::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--ucp-border, #e0e0e0);
}

/* ── Reply bar ──────────────────────────────────────────────────────────── */
.ucp-reply-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-top: 1px solid var(--ucp-border, #e0e0e0);
    background: rgba(27,175,82,.06);
    flex-shrink: 0;
}
.ucp-reply-bar[hidden] { display: none; }

.ucp-reply-bar-accent {
    width: 4px;
    height: 36px;
    border-radius: 3px;
    background: var(--ucp-primary, #1BAF52);
    flex-shrink: 0;
}
.ucp-reply-bar-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.ucp-reply-bar-author {
    font-size: 12px;
    font-weight: 600;
    color: var(--ucp-primary, #1BAF52);
}
.ucp-reply-bar-text {
    font-size: 12px;
    color: var(--ucp-text-muted, #666);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ucp-reply-bar-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--ucp-text-muted, #666);
    flex-shrink: 0;
    padding: 0;
}
.ucp-reply-bar-close:hover { background: var(--ucp-border, #e0e0e0); }

/* ── Media preview bar ──────────────────────────────────────────────────── */
.ucp-media-preview-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    border-top: 1px solid var(--ucp-border, #e0e0e0);
    background: var(--ucp-card-bg, #fff);
    flex-shrink: 0;
}
.ucp-media-preview-bar[hidden] { display: none; }

.ucp-media-preview-inner img,
.ucp-media-preview-inner video {
    max-height: 80px;
    max-width: 120px;
    border-radius: 6px;
    object-fit: cover;
}
.ucp-media-preview-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--ucp-text-muted, #666);
    padding: 0;
}
.ucp-media-preview-remove:hover { background: var(--ucp-border, #e0e0e0); }

/* ── Emoji panel ────────────────────────────────────────────────────────── */
.ucp-emoji-panel {
    position: absolute;
    bottom: 60px;
    left: 8px;
    z-index: 100;
    background: var(--ucp-card-bg, #fff);
    border: 1px solid var(--ucp-border, #e0e0e0);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,.12);
    max-height: 220px;
    overflow-y: auto;
    padding: 8px;
    width: 296px;
}
.ucp-emoji-panel[hidden] { display: none; }

.ucp-emoji-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2px;
}
@media (max-width: 480px) {
    .ucp-emoji-grid { grid-template-columns: repeat(7, 1fr); }
    .ucp-emoji-panel { width: 260px; }
}

.ucp-emoji-btn {
    width: 36px;
    height: 36px;
    font-size: 22px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 6px;
    transition: background .1s;
    padding: 0;
}
.ucp-emoji-btn:hover { background: var(--ucp-border, #e0e0e0); }

/* ── Input bar ──────────────────────────────────────────────────────────── */
.ucp-room-inputbar {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    padding: 10px 12px;
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--ucp-border, #e0e0e0);
    background: var(--ucp-card-bg, #fff);
    flex-shrink: 0;
}

.ucp-ib-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--ucp-text-muted, #666);
    transition: background .15s, color .15s;
    flex-shrink: 0;
    padding: 0;
}
.ucp-ib-btn:hover {
    background: rgba(27,175,82,.1);
    color: var(--ucp-primary, #1BAF52);
}

.ucp-room-textarea {
    flex: 1;
    min-width: 0;
    resize: none;
    border: 1.5px solid var(--ucp-border, #e0e0e0);
    border-radius: 20px;
    padding: 9px 14px;
    font-family: inherit;
    font-size: 14px;
    line-height: 1.5;
    background: var(--ucp-card-bg, #fff);
    color: var(--ucp-text, #1a1a1a);
    outline: none;
    max-height: 120px;
    overflow-y: auto;
    transition: border-color .15s;
}
.ucp-room-textarea:focus {
    border-color: var(--ucp-primary, #1BAF52);
}
.ucp-room-textarea::placeholder { color: var(--ucp-text-muted, #999); }

.ucp-room-send-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background: var(--ucp-primary, #1BAF52);
    color: #fff;
    cursor: pointer;
    transition: background .15s, transform .1s;
    flex-shrink: 0;
    padding: 0;
}
.ucp-room-send-btn:hover  { background: #159943; }
.ucp-room-send-btn:active { transform: scale(.92); }

/* ── Context menu ───────────────────────────────────────────────────────── */
.ucp-msg-ctx-menu {
    position: fixed;
    z-index: 9999;
    background: var(--ucp-card-bg, #fff);
    border: 1px solid var(--ucp-border, #e0e0e0);
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,.14);
    padding: 6px 0;
    min-width: 160px;
}
.ucp-msg-ctx-menu[hidden] { display: none; }

.ucp-ctx-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 16px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 14px;
    color: var(--ucp-text, #1a1a1a);
    text-align: left;
    transition: background .1s;
}
.ucp-ctx-item:hover { background: var(--ucp-border, #f5f5f5); }

.ucp-ctx-reactions {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 6px 10px;
    border-top: 1px solid var(--ucp-border, #e0e0e0);
    flex-wrap: wrap;
}
.ucp-ctx-quick-emoji {
    width: 34px;
    height: 34px;
    font-size: 20px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 6px;
    transition: background .1s, transform .1s;
    padding: 0;
}
.ucp-ctx-quick-emoji:hover {
    background: var(--ucp-border, #e0e0e0);
    transform: scale(1.2);
}

/* ── Groups list page ───────────────────────────────────────────────────── */
.ucp-groups-wrap {
    max-width: 700px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}

.ucp-groups-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.ucp-groups-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--ucp-text, #1a1a1a);
    margin: 0;
}

.ucp-groups-section {
    margin-bottom: 32px;
}
.ucp-groups-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--ucp-text, #1a1a1a);
    margin: 0 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--ucp-border, #e0e0e0);
}

.ucp-room-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ucp-room-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--ucp-card-bg, #fff);
    border: 1px solid var(--ucp-border, #e0e0e0);
    border-radius: var(--ucp-radius, 10px);
    text-decoration: none;
    color: var(--ucp-text, #1a1a1a);
    transition: border-color .15s, box-shadow .15s;
    cursor: pointer;
    width: 100%;
    box-sizing: border-box;
}
.ucp-room-card:hover {
    border-color: var(--ucp-primary, #1BAF52);
    box-shadow: 0 2px 10px rgba(27,175,82,.1);
    color: var(--ucp-text, #1a1a1a);
    text-decoration: none;
}

.ucp-room-card-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--ucp-primary, #1BAF52);
    color: #fff;
    font-weight: 700;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ucp-room-card-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.ucp-room-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.ucp-room-card-name {
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ucp-room-card-time {
    font-size: 11px;
    color: var(--ucp-text-muted, #999);
    flex-shrink: 0;
}
.ucp-room-card-bottom {
    display: flex;
    align-items: center;
    gap: 8px;
}
.ucp-room-card-preview {
    font-size: 13px;
    color: var(--ucp-text-muted, #666);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}
.ucp-room-card-members {
    font-size: 12px;
    color: var(--ucp-text-muted, #999);
    white-space: nowrap;
}
.ucp-room-card-arrow {
    color: var(--ucp-text-muted, #bbb);
    flex-shrink: 0;
}

.ucp-room-card--joinable {
    text-decoration: none;
}

/* Type badges */
.ucp-room-type-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 7px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
}
.ucp-room-type-badge--general {
    background: rgba(27,175,82,.12);
    color: #1BAF52;
}
.ucp-room-type-badge--group {
    background: rgba(66,133,244,.12);
    color: #4285f4;
}
.ucp-room-type-badge--trip {
    background: rgba(251,188,4,.12);
    color: #b8860b;
}

/* Create group form */
.ucp-create-group-form {
    margin-bottom: 24px;
}
.ucp-create-group-form[hidden] { display: none; }

.ucp-card {
    background: var(--ucp-card-bg, #fff);
    border: 1px solid var(--ucp-border, #e0e0e0);
    border-radius: var(--ucp-radius, 10px);
    padding: 20px;
}
.ucp-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--ucp-text, #1a1a1a);
    margin: 0 0 16px;
}
.ucp-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 14px;
}
.ucp-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--ucp-text, #333);
}
.ucp-input {
    padding: 10px 12px;
    border: 1.5px solid var(--ucp-border, #e0e0e0);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    background: var(--ucp-card-bg, #fff);
    color: var(--ucp-text, #1a1a1a);
    outline: none;
    transition: border-color .15s;
    width: 100%;
    box-sizing: border-box;
    resize: vertical;
}
.ucp-input:focus { border-color: var(--ucp-primary, #1BAF52); }

.ucp-form-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 4px;
}
.ucp-form-error {
    color: #d32f2f;
    font-size: 13px;
    margin-top: 8px;
}
.ucp-form-error[hidden] { display: none; }

/* Shared buttons */
.ucp-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 8px;
    border: none;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background .15s, opacity .15s;
    text-decoration: none;
}
.ucp-btn--primary {
    background: var(--ucp-primary, #1BAF52);
    color: #fff;
}
.ucp-btn--primary:hover { background: #159943; color: #fff; }
.ucp-btn--ghost {
    background: transparent;
    color: var(--ucp-primary, #1BAF52);
    border: 1.5px solid var(--ucp-primary, #1BAF52);
}
.ucp-btn--ghost:hover {
    background: rgba(27,175,82,.08);
    color: var(--ucp-primary, #1BAF52);
}

.ucp-empty-state {
    color: var(--ucp-text-muted, #666);
    font-size: 14px;
    text-align: center;
    padding: 24px 0;
}

/* ── Conversations page (tabbed) ─────────────────────────────────────────── */
.ucp-conv-wrap {
    max-width: 700px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}
.ucp-conv-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.ucp-conv-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--ucp-text, #1a1a1a);
    margin: 0;
}

.ucp-conv-tabs {
    display: flex;
    gap: 4px;
    background: var(--ucp-card-bg, #fff);
    border: 1px solid var(--ucp-border, #e0e0e0);
    border-radius: 12px;
    padding: 4px;
    margin-bottom: 24px;
}
.ucp-conv-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    border: none;
    border-radius: 9px;
    background: transparent;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    color: var(--ucp-text-muted, #666);
    cursor: pointer;
    transition: background .15s, color .15s;
    white-space: nowrap;
}
.ucp-conv-tab--active {
    background: var(--ucp-primary, #1BAF52);
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(27,175,82,.25);
}
.ucp-conv-tab:not(.ucp-conv-tab--active):hover {
    background: rgba(27,175,82,.08);
    color: var(--ucp-primary, #1BAF52);
}

.ucp-conv-panel { display: none; }
.ucp-conv-panel--active { display: block; }

.ucp-conv-section {
    margin-bottom: 28px;
}
.ucp-conv-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--ucp-text-muted, #888);
    margin: 0 0 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--ucp-border, #e0e0e0);
}

/* ── Group management drawer ────────────────────────────────────────────── */
.ucp-room-manage-btn {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    color: rgba(255,255,255,.85);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background .15s;
}
.ucp-room-manage-btn:hover { background: rgba(255,255,255,.15); color: #fff; }

.ucp-manage-drawer {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: min(300px, 100%);
    background: var(--ucp-card-bg, #fff);
    border-left: 1px solid var(--ucp-border, #e0e0e0);
    z-index: 30;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transform: translateX(101%);
    transition: transform .25s ease;
}
.ucp-manage-drawer--open { transform: translateX(0); }

.ucp-manage-drawer-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 16px;
    background: #122011;
    color: #fff;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 1;
}
.ucp-manage-drawer-header h2 {
    flex: 1;
    font-size: var(--ucp-text-sm, .875rem);
    font-weight: 700;
    margin: 0;
    color: #fff;
}
.ucp-manage-close {
    background: none;
    border: none;
    cursor: pointer;
    color: rgba(255,255,255,.8);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px; height: 30px;
    border-radius: 50%;
    transition: background .15s;
}
.ucp-manage-close:hover { background: rgba(255,255,255,.15); color: #fff; }

.ucp-manage-section {
    padding: 14px 16px;
    border-bottom: 1px solid var(--ucp-border, #e0e0e0);
}
.ucp-manage-section[hidden] { display: none; }
.ucp-manage-section-label {
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--ucp-text-muted, #888);
    margin-bottom: 10px;
}
.ucp-manage-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 0;
    color: var(--ucp-text-muted, #888);
}
@keyframes spin { to { transform: rotate(360deg); } }

.ucp-members-list { display: flex; flex-direction: column; gap: 4px; }
.ucp-member-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 5px 0;
}
.ucp-member-avatar {
    width: 34px; height: 34px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}
.ucp-member-info { flex: 1; min-width: 0; }
.ucp-member-name {
    font-size: var(--ucp-text-sm, .875rem);
    font-weight: 600;
    color: var(--ucp-text, #1a1a1a);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}
.ucp-member-me { font-weight: 400; color: var(--ucp-text-muted, #888); font-size: .72rem; }
.ucp-member-role-badge {
    display: inline-block;
    font-size: .62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    background: var(--ucp-primary-light, rgba(27,175,82,.12));
    color: var(--ucp-primary, #1BAF52);
    border-radius: 6px;
    padding: 1px 5px;
    margin-top: 2px;
}
.ucp-member-remove {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--ucp-danger, #ef4444);
    opacity: .55;
    display: flex;
    align-items: center;
    padding: 4px;
    border-radius: 50%;
    transition: opacity .15s, background .15s;
    flex-shrink: 0;
}
.ucp-member-remove:hover { opacity: 1; background: rgba(239,68,68,.08); }

/* ── Join Group landing page ─────────────────────────────────────────────── */
.ucp-join-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    padding: 32px 16px;
}

.ucp-join-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    background: var(--ucp-card-bg, #fff);
    border: 1px solid var(--ucp-border, #e0e0e0);
    border-radius: 20px;
    box-shadow: 0 4px 24px rgba(0,0,0,.08);
    padding: 40px 32px 36px;
    max-width: 420px;
    width: 100%;
    text-align: center;
}

.ucp-join-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: #122011;
    color: #b7f7b0;
    font-size: 36px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ucp-join-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 100%;
}

.ucp-join-eyebrow {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: .78rem;
    color: var(--ucp-text-secondary, #666);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin: 0;
}
.ucp-join-eyebrow .material-symbols-outlined { font-size: 16px; }

.ucp-join-title {
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--ucp-text-primary, #111);
    margin: 0;
    line-height: 1.25;
}

.ucp-join-desc {
    font-size: .9rem;
    color: var(--ucp-text-secondary, #666);
    margin: 0;
    line-height: 1.5;
}

.ucp-join-members {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: .85rem;
    color: var(--ucp-text-secondary, #666);
    margin: 0;
}
.ucp-join-members .material-symbols-outlined { font-size: 16px; }

.ucp-join-submit-btn {
    width: 100%;
    justify-content: center;
    gap: 8px;
    margin-top: 6px;
    font-size: 1rem;
    padding: 12px 24px;
}

.ucp-join-error {
    color: #d32f2f;
    font-size: .85rem;
    margin: 0;
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
    .ucp-room {
        border-radius: 0;
        height: 100svh;
        height: 100vh;
        max-width: 100%;
        border: none;
    }
    .ucp-bubble { max-width: 90%; }
    .ucp-bubble-img { max-width: 200px; }
    .ucp-bubble-video { max-width: 220px; }
    .ucp-groups-wrap { padding: 16px 12px 40px; }
    .ucp-room-card { padding: 10px 12px; }
    .ucp-room-card-avatar { width: 42px; height: 42px; font-size: 18px; }
}