.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  position: relative;
  z-index: 10;
  transition: transform var(--t-slow);
}

.sidebar__header {
  padding: var(--sp-5) var(--sp-5) var(--sp-3);
  flex-shrink: 0;
}

.sidebar__profile {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-4);
}

.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.sidebar__user-info { display: flex; flex-direction: column; }

.sidebar__user-name {
  font-size: var(--font-base);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  line-height: 1.2;
}

.sidebar__user-status {
  font-size: var(--font-xs);
  color: var(--online);
  font-weight: var(--fw-medium);
}

.sidebar__actions { display: flex; gap: var(--sp-1); }

.sidebar__search { position: relative; margin-bottom: var(--sp-2); }

.sidebar__search-icon {
  position: absolute; left: var(--sp-3); top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted); pointer-events: none;
  transition: color var(--t-fast);
}

.sidebar__search-icon svg { width: 18px; height: 18px; stroke-width: 1.75; }

.sidebar__search-input {
  width: 100%; height: 40px;
  padding: 0 var(--sp-4) 0 calc(var(--sp-3) + 26px);
  background: var(--bg-input);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-sm);
  transition: all var(--t-fast);
}

.sidebar__search-input::placeholder { color: var(--text-muted); }

.sidebar__search-input:focus {
  background: var(--bg-input-focus);
  border-color: var(--border-accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
}

.sidebar__chats {
  flex: 1; overflow-y: auto;
  padding: var(--sp-1) var(--sp-2);
}

.chat-item {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--t-fast);
  position: relative;
}

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

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

.chat-item--active::before {
  content: ''; position: absolute;
  left: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 24px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}

.chat-item__content {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; gap: 2px;
}

.chat-item__top {
  display: flex; align-items: center;
  justify-content: space-between; gap: var(--sp-2);
}

.chat-item__name {
  font-size: var(--font-base); font-weight: var(--fw-medium);
  color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.chat-item__time {
  font-size: var(--font-xs); color: var(--text-muted);
  white-space: nowrap; flex-shrink: 0;
}

.chat-item--unread .chat-item__time { color: var(--accent-light); }

.chat-item__bottom {
  display: flex; align-items: center;
  justify-content: space-between; gap: var(--sp-2);
}

.chat-item__message {
  font-size: var(--font-sm); color: var(--text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1;
}

.chat-item__badge { flex-shrink: 0; }

.sidebar__nav {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-around;
  padding: var(--sp-3) var(--sp-4);
  border-top: 1px solid var(--border);
}

.sidebar__nav-btn {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: var(--font-xs); font-weight: var(--fw-medium);
  transition: all var(--t-fast);
  position: relative;
}

.sidebar__nav-btn svg { width: 22px; height: 22px; stroke-width: 1.75; }
.sidebar__nav-btn:hover { color: var(--text-secondary); }
.sidebar__nav-btn--active { color: var(--accent-light); }

.sidebar__empty {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: var(--sp-12) var(--sp-6);
  text-align: center; color: var(--text-muted); gap: var(--sp-3);
}

.sidebar__empty svg { width: 48px; height: 48px; stroke-width: 1; opacity: 0.4; }
.sidebar__empty p { font-size: var(--font-sm); }

.sidebar__group-header {
  padding: var(--sp-2) var(--sp-3);
}

.sidebar__create-group-btn {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  width: 100%;
  padding: var(--sp-3);
  border-radius: var(--radius-md);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  color: var(--accent-light);
  font-size: var(--font-sm);
  font-weight: var(--fw-semibold);
  cursor: pointer;
  transition: all var(--t-fast);
}

.sidebar__create-group-btn svg {
  width: 18px;
  height: 18px;
}

.sidebar__create-group-btn:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: rgba(139, 92, 246, 0.35);
}

.create-group-modal {
  background: var(--bg-sidebar);
  border-radius: var(--radius-lg);
  width: 460px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.create-group-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--border-subtle);
}

.create-group-modal__title {
  font-size: var(--font-lg);
  font-weight: var(--fw-bold);
}

.create-group-modal__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-4) var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.create-group-modal__label {
  font-size: var(--font-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.create-group-modal__input {
  width: 100%;
  padding: var(--sp-3);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-sm);
  transition: border-color var(--t-fast);
}

.create-group-modal__input:focus {
  border-color: var(--accent);
  outline: none;
}

.create-group-modal__textarea {
  width: 100%;
  padding: var(--sp-3);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-sm);
  resize: vertical;
  min-height: 72px;
  font-family: inherit;
  transition: border-color var(--t-fast);
}

.create-group-modal__textarea:focus {
  border-color: var(--accent);
  outline: none;
}

.create-group-modal__type-toggle {
  display: flex;
  gap: var(--sp-2);
}

.create-group-modal__type-btn {
  flex: 1;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  color: var(--text-muted);
  font-size: var(--font-sm);
  font-weight: var(--fw-semibold);
  cursor: pointer;
  transition: all var(--t-fast);
}

.create-group-modal__type-btn:hover {
  border-color: var(--accent);
}

.create-group-modal__type-btn--active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.create-group-modal__approval {
  margin-top: 0;
}

.create-group-modal__checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--font-sm);
  color: var(--text-secondary);
  cursor: pointer;
}

.create-group-modal__checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.create-group-modal__link-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0;
}

.create-group-modal__link-prefix {
  padding: var(--sp-3);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid var(--border-subtle);
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  color: var(--accent-light);
  font-size: var(--font-sm);
  font-weight: var(--fw-semibold);
  white-space: nowrap;
}

.create-group-modal__link-input {
  border-radius: 0 var(--radius-md) var(--radius-md) 0 !important;
}

.create-group-modal__hint {
  font-size: var(--font-xs);
  color: var(--text-muted);
  font-style: italic;
}

.create-group-modal__members-input {
  display: flex;
  gap: var(--sp-2);
}

.create-group-modal__add-member {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: white;
  font-size: 20px;
  font-weight: var(--fw-bold);
  cursor: pointer;
  border: none;
  transition: all var(--t-fast);
}

.create-group-modal__add-member:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.create-group-modal__members-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.create-group-modal__member-tag {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-light);
  font-size: var(--font-xs);
  font-weight: var(--fw-semibold);
}

.create-group-modal__member-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  display: flex;
}

.create-group-modal__member-remove svg {
  width: 14px;
  height: 14px;
}

.create-group-modal__member-remove:hover {
  color: #ef4444;
}

.create-group-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  border-top: 1px solid var(--border-subtle);
}

.btn {
  padding: var(--sp-2) var(--sp-5);
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  font-weight: var(--fw-semibold);
  cursor: pointer;
  border: none;
  transition: all var(--t-fast);
}

.btn--ghost {
  background: none;
  color: var(--text-muted);
}

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

.btn--primary {
  background: var(--accent);
  color: white;
}

.btn--primary:hover {
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.4);
  transform: translateY(-1px);
}

.group-settings__avatar-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  padding-bottom: var(--sp-3);
}

.group-settings__avatar {
  width: 80px !important;
  height: 80px !important;
  font-size: var(--font-xl) !important;
}

.group-settings__avatar-section .btn--ghost svg {
  width: 16px;
  height: 16px;
  margin-right: 4px;
}

.group-settings__invite-display {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-3);
  background: var(--bg-input);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.group-settings__invite-display code {
  flex: 1;
  color: var(--accent-light);
  font-size: var(--font-sm);
  word-break: break-all;
}

.group-settings__invite-display .icon-btn svg {
  width: 16px;
  height: 16px;
}

.group-settings__members {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  max-height: 300px;
  overflow-y: auto;
}

.group-settings__member {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2);
  border-radius: var(--radius-md);
}

.group-settings__member:hover {
  background: var(--bg-glass-hover);
}

.group-settings__member-name {
  flex: 1;
  font-size: var(--font-sm);
  font-weight: var(--fw-medium);
}

.group-settings__member-role {
  font-size: var(--font-xs);
  color: var(--accent-light);
  font-weight: var(--fw-semibold);
}

.avatar--sm {
  width: 32px !important;
  height: 32px !important;
  font-size: 11px !important;
}

.avatar--lg {
  width: 80px !important;
  height: 80px !important;
  font-size: 24px !important;
}

.message__sender {
  display: block;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 2px;
  padding: 0 var(--sp-2);
}

.message__forwarded {
  display: block;
  font-size: 11px;
  font-style: italic;
  color: var(--text-muted);
  padding: 2px var(--sp-2) 4px;
}

.message--sent .message__forwarded {
  color: rgba(255, 255, 255, 0.6);
}

.gs-tabs {
  display: flex;
  gap: 2px;
  padding: 0 var(--sp-4);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-glass);
}

.gs-tab {
  flex: 1;
  padding: 10px 8px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: var(--font-sm);
  font-weight: var(--fw-medium);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.gs-tab:hover {
  color: var(--text);
}

.gs-tab--active {
  color: var(--accent-light);
  border-bottom-color: var(--accent-light);
}

.gs-role-dropdown {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
  margin-left: auto;
}

.gs-role-dropdown__trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.gs-role-dropdown__trigger:hover {
  border-color: var(--border-hover);
}

.gs-role-dropdown__menu {
  position: fixed;
  z-index: 999;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 150px;
  padding: 4px;
  display: none;
  flex-direction: column;
  gap: 2px;
}

.gs-role-dropdown__menu--visible {
  display: flex;
}

.gs-role-dropdown__item {
  text-align: left;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}

.gs-role-dropdown__item:hover {
  background: var(--bg-glass-hover);
}

.gs-role-dropdown__item--active {
  background: var(--bg-input);
  font-weight: var(--fw-semibold);
}

.gs-kick-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: none;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  color: var(--danger);
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
}

.gs-kick-btn:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--danger);
}

.gs-kick-btn svg {
  width: 14px;
  height: 14px;
}

.gs-copy-btn {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color 0.2s;
}

.gs-copy-btn:hover {
  color: var(--accent-light);
}

.gs-audit-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  max-height: 350px;
  overflow-y: auto;
}

.gs-audit-item {
  padding: var(--sp-2) var(--sp-3);
  background: var(--bg-glass);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.gs-audit-item__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.gs-audit-item__action {
  font-size: var(--font-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
}

.gs-audit-item__time {
  font-size: 11px;
  color: var(--text-muted);
}

.gs-audit-item__details {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.invite-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.invite-overlay--visible {
  opacity: 1;
}

.invite-card {
  background: var(--bg-sidebar);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl, 16px);
  padding: 32px;
  max-width: 380px;
  width: 90%;
  text-align: center;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s ease;
}

.invite-overlay--visible .invite-card {
  transform: scale(1) translateY(0);
}

.invite-card__badge {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.invite-card__avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.invite-card__name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 6px;
}

.invite-card__desc {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0 0 16px;
  line-height: 1.5;
}

.invite-card__meta {
  display: flex;
  justify-content: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.invite-card__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.invite-card__actions .btn {
  min-width: 120px;
  padding: 10px 24px;
}

.message-link {
  color: var(--accent-light);
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-all;
}

.message-link:hover {
  color: var(--accent);
  text-decoration-thickness: 2px;
}

.message--sent .message-link {
  color: rgba(255, 255, 255, 0.9);
}

.message--sent .message-link:hover {
  color: #fff;
}