:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-accent: #0ea5e9;
  --color-success: #22c55e;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;

  --bg-body: #f0f2f5;
  --bg-surface: #ffffff;
  --bg-sidebar: #ffffff;
  --bg-header: #ffffff;
  --bg-input: #f1f5f9;
  --bg-hover: #f8fafc;
  --bg-message-self: #dbeafe;
  --bg-message-other: #ffffff;

  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  --border-color: #e2e8f0;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

  --header-height: 60px;
  --sidebar-width: 240px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
}

.hidden {
  display: none !important;
}

.mobile-only {
  display: none !important;
}

/* ===================== LOGIN SCREEN ===================== */

#login-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #0ea5e9 100%);
  padding: 20px;
}

.login-card {
  background: var(--bg-surface);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px 40px 32px;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-logo {
  margin-bottom: 24px;
}

.login-logo-img {
  width: 140px;
  height: auto;
  margin-bottom: 16px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  background: white;
  padding: 12px 20px;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.login-logo h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 13px;
}

.login-tabs {
  display: flex;
  background: var(--bg-input);
  border-radius: var(--border-radius-sm);
  padding: 4px;
  margin-bottom: 20px;
}

.login-tab {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.login-tab.active {
  background: var(--bg-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.login-tab:hover:not(.active) {
  color: var(--text-primary);
}

.login-form-box {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ===================== FORM ELEMENTS ===================== */

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group .input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 16px;
  pointer-events: none;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 12px 14px 12px 42px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 15px;
  background: var(--bg-input);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group input:focus,
.input-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

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

.btn-primary {
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius-sm);
  background: var(--color-primary);
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

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

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  padding: 10px 18px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--text-muted);
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--border-radius-sm);
  transition: background 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
}

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

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.login-error {
  color: var(--color-danger);
  font-size: 13px;
  min-height: 20px;
  text-align: center;
}

.twofactor-intro {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.session-replaced {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-body, #f3f4f6);
  z-index: 2000;
  padding: 16px;
}

.twofactor-remember {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

.btn-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  align-self: center;
}

.btn-link:hover {
  text-decoration: underline;
}

/* ===================== CHAT SCREEN ===================== */

#chat-screen {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

#chat-header {
  height: var(--header-height);
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-logo i {
  font-size: 24px;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 8px;
  border-radius: 10px;
}

.header-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-user {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px 4px 6px;
  background: var(--bg-hover);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.header-display-name {
  max-width: 150px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-department-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--color-accent);
  color: #fff;
  white-space: nowrap;
}

#header-user-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-edit-btn {
  font-size: 12px !important;
  padding: 4px !important;
  color: var(--text-muted) !important;
}

.header-edit-btn:hover {
  color: var(--color-primary) !important;
  background: transparent !important;
}

.header-edit-label {
  display: none;
}

#logout-btn {
  color: var(--color-danger) !important;
  font-size: 18px !important;
}

#logout-btn:hover {
  background: rgba(239, 68, 68, 0.1) !important;
}

/* ===================== AVATARS ===================== */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  overflow: hidden;
}

.avatar-24 {
  width: 32px;
  height: 32px;
  font-size: 12px;
  font-weight: 700;
  color: white;
}

.avatar-28 {
  width: 36px;
  height: 36px;
  font-size: 14px;
  font-weight: 700;
  color: white;
}

.avatar-32 {
  width: 40px;
  height: 40px;
  font-size: 15px;
  font-weight: 700;
  color: white;
}

.avatar-36 {
  width: 44px;
  height: 44px;
  font-size: 16px;
  font-weight: 700;
  color: white;
}

.avatar-clickable {
  cursor: pointer;
}

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

.avatar-initial {
  user-select: none;
}

/* ===================== MAIN CONTAINER ===================== */

#main-container {
  display: flex;
  flex: 1;
  min-height: 0;
}

/* ===================== SIDEBAR ROOMS / CONVERSATIONS ===================== */

#sidebar-rooms {
  width: 292px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-tabs {
  display: flex;
  padding: 8px 8px 0;
  gap: 4px;
  overflow-x: auto;
}

.sidebar-tabs::-webkit-scrollbar {
  height: 4px;
}

.sidebar-tabs::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 2px;
}

.sidebar-tab {
  flex: 1 0 auto;
  white-space: nowrap;
  padding: 8px 6px;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  position: relative;
}

#admin-tab .sidebar-tab-label {
  display: none;
}

#admin-tab {
  flex: 0 0 auto;
  padding: 8px 10px;
}

.sidebar-tab i {
  font-size: 13px;
}

.sidebar-tab:hover {
  color: var(--text-secondary);
  background: var(--bg-hover);
}

.sidebar-tab.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.sidebar-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.sidebar-header {
  padding: 12px 16px 8px;
}

.sidebar-header h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-header h3 i {
  font-size: 14px;
}

#rooms-list,
#conversations-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 8px;
}

.room-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background 0.15s;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.room-item i:first-child {
  color: var(--text-muted);
  font-size: 14px;
  width: 16px;
  text-align: center;
}

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

.room-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.room-item.active i {
  color: var(--color-primary);
}

.room-item .room-icon-lock {
  color: var(--color-warning) !important;
}

.room-item .room-icon-temp {
  color: var(--color-accent) !important;
}

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border-color);
}

#create-room-btn {
  width: 100%;
}

/* ===================== CONVERSATIONS ===================== */

.conv-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background 0.15s;
  margin-bottom: 2px;
}

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

.conv-item.active {
  background: var(--color-primary-light);
}

.conv-item .conv-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

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

.conv-item .conv-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.conv-item .conv-preview {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conv-item .conv-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

.conv-item .conv-time {
  font-size: 11px;
  color: var(--text-muted);
}

.conv-item .conv-badge {
  background: var(--color-danger);
  color: white;
  font-size: 11px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.conv-item.unread .conv-name {
  color: var(--color-primary);
}

.conv-item.unread .conv-preview {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===================== AMIGOS ===================== */

.friend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background 0.15s;
  margin-bottom: 2px;
}

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

.friend-item .friend-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.friend-status-dot {
  position: absolute;
  bottom: -1px;
  right: -1px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--bg-sidebar);
  background: var(--text-muted);
}

.friend-status-dot.online {
  background: var(--color-success, #16a34a);
}

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

.friend-item .friend-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.friend-item .friend-status-text {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.friend-item .friend-status-text.online {
  color: var(--color-success, #16a34a);
}

.friend-remove-btn {
  font-size: 13px;
  color: var(--text-muted);
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s;
}

.friend-item:hover .friend-remove-btn {
  opacity: 1;
}

.friend-remove-btn:hover {
  color: var(--color-danger);
}

.friend-request-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
}

.friend-request-item .friend-info {
  flex: 1;
  min-width: 0;
}

.friend-request-item .friend-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.friend-request-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.friend-request-accept,
.friend-request-reject {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  border: none;
  cursor: pointer;
}

.friend-request-accept {
  background: var(--color-success, #16a34a);
  color: #fff;
}

.friend-request-reject {
  background: var(--bg-input);
  color: var(--text-muted);
}

.add-friend-results {
  margin-top: 12px;
  max-height: 320px;
  overflow-y: auto;
}

.add-friend-result-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--border-color);
}

.add-friend-result-item:last-child {
  border-bottom: none;
}

.add-friend-result-item .friend-info {
  flex: 1;
  min-width: 0;
}

.add-friend-result-item .friend-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.add-friend-result-item .friend-username {
  font-size: 12px;
  color: var(--text-muted);
}

.add-friend-action-btn {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--border-radius-sm);
  border: none;
  cursor: pointer;
  background: var(--color-primary);
  color: #fff;
}

.add-friend-action-btn:disabled {
  background: var(--bg-input);
  color: var(--text-muted);
  cursor: default;
}

/* ===================== GRUPOS ===================== */

.group-avatar {
  font-size: 15px;
}

.group-modal-name-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.group-modal-hint {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 12px;
}

.group-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 6px 0 8px;
}

.group-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px 4px 10px;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
}

.group-chip button {
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  padding: 0 4px;
}

.group-member-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.group-member-actions .add-friend-action-btn.secondary {
  background: var(--bg-input);
  color: var(--text-secondary);
}

.group-member-actions .add-friend-action-btn.danger {
  background: var(--color-danger);
}

#group-modal .modal-body {
  max-height: 70vh;
  overflow-y: auto;
}

.room-item .room-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.room-item .room-global-badge {
  font-size: 10px;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--bg-input);
  background: color-mix(in srgb, var(--color-accent) 15%, transparent);
  padding: 2px 6px;
  border-radius: 8px;
  flex-shrink: 0;
}

/* ===================== ROOM UNREAD BADGE ===================== */

.room-item .room-badge {
  background: var(--color-danger);
  color: white;
  font-size: 11px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
}

.room-item.unread {
  background: var(--bg-hover);
}

/* ===================== ADMIN PANEL ===================== */

/* ===================== ADMIN VIEW (main area) ===================== */

#admin-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--bg-surface);
}

#admin-view-header {
  flex-shrink: 0;
  padding: 16px 24px 0;
  border-bottom: 1px solid var(--border-color);
}

#admin-view-header h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-subtabs {
  display: flex;
  gap: 4px;
}

.admin-subtab {
  background: none;
  border: none;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s;
}

.admin-subtab:hover {
  color: var(--text-primary);
}

.admin-subtab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

#admin-view-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
}

.admin-subtab-panel.hidden {
  display: none;
}

.admin-section-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.admin-search-box {
  position: relative;
  flex: 1;
  max-width: 320px;
}

.admin-search-box i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 13px;
}

.admin-search-box input {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 14px;
  background: var(--bg-input);
  color: var(--text-primary);
  outline: none;
}

.admin-search-box input:focus {
  border-color: var(--color-primary);
}

.admin-table {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  background: var(--bg-surface);
}

.admin-user-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.1s;
}

.admin-user-item:hover {
  background: var(--bg-hover);
}

.admin-user-item:last-child {
  border-bottom: none;
}

.admin-table .admin-table-empty {
  padding: 32px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

.admin-table .admin-users-more {
  display: block;
  margin: 10px auto;
}

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

.admin-user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.admin-user-username {
  font-size: 11px;
  color: var(--text-muted);
}

.admin-user-role {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 8px;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-weight: 500;
}

.admin-role-badge {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.admin-status-rejected {
  background: var(--bg-input);
  color: var(--color-danger);
}

.admin-user-edit-btn {
  font-size: 13px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.admin-user-edit-btn:hover {
  color: var(--color-primary);
}

.admin-room-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.1s;
}

.admin-room-item:hover {
  background: var(--bg-hover);
}

.admin-room-item:last-child {
  border-bottom: none;
}

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

.admin-room-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.admin-room-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 6px;
}

.admin-room-delete-btn {
  font-size: 14px;
  color: var(--color-danger);
  flex-shrink: 0;
}

.admin-room-delete-btn:hover {
  opacity: 0.7;
}

.admin-room-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.admin-room-lock-btn {
  font-size: 13px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.admin-room-lock-btn:hover {
  color: var(--color-warning);
}

/* Disabled checkbox for non-admin create-room */
#create-modal-temporary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.create-modal-info {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ===================== ADMIN STATS ===================== */

.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.admin-stat-card {
  background: var(--bg-input);
  border-radius: var(--border-radius-sm);
  padding: 20px 16px;
  text-align: center;
}

.admin-stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.admin-stat-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* ===================== DEPARTMENT SELECT MODAL ===================== */

.department-select-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.department-select-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-input);
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  transition: border-color 0.15s, background 0.15s;
  text-align: left;
}

.department-select-item:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.department-select-item i {
  color: var(--color-primary);
}

/* ===================== ADMIN EDIT USER MODAL ===================== */

.admin-edit-dept-checklist {
  max-height: 160px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 4px 0;
}

.admin-edit-dept-checklist label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 14px;
  cursor: pointer;
}

.admin-edit-dept-checklist label:hover {
  background: var(--bg-hover);
}

.admin-edit-dept-checklist .admin-edit-dept-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-edit-dept-checklist .admin-edit-dept-row > label:first-child {
  flex: 1;
  min-width: 0;
}

.admin-edit-dept-checklist label.dept-admin-toggle {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.admin-edit-dept-checklist .admin-edit-dept-empty {
  padding: 10px 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.admin-edit-pwd-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.admin-edit-delete-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.admin-edit-section-label {
  font-size: 13px;
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.admin-edit-section-label i {
  margin-right: 4px;
}

.btn-danger {
  padding: 12px 24px;
  border: none;
  border-radius: var(--border-radius-sm);
  background: var(--color-danger);
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-danger:active {
  transform: scale(0.98);
}

.btn-danger:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ===================== SIDEBAR BADGE ===================== */

.sb-badge {
  background: var(--color-danger);
  color: white;
  font-size: 10px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 2px;
  right: 2px;
}

/* ===================== CHAT MAIN ===================== */

#chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

#chat-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-surface);
  flex-shrink: 0;
}

#chat-context {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
}

#chat-context i {
  color: var(--text-muted);
}

.context-badge {
  font-size: 11px;
  background: var(--color-warning);
  color: white;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.context-badge-global {
  background: var(--color-accent);
}

#back-to-room-btn {
  font-weight: 500;
}

#back-to-room-btn i {
  font-size: 14px;
}

/* ===================== MESSAGES ===================== */

#messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
}

#messages-container::before {
  content: '';
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(80vw, 600px);
  height: min(80vh, 600px);
  background-image: url('img/logo.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
}

#messages-start {
  text-align: center;
  padding: 32px 0;
  position: relative;
  z-index: 1;
}

.welcome-msg {
  color: var(--text-secondary);
}

.welcome-msg i {
  font-size: 48px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.welcome-msg p {
  font-size: 16px;
  margin-bottom: 4px;
}

.welcome-sub {
  font-size: 13px !important;
  color: var(--text-muted);
}

#messages-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: auto;
  position: relative;
  z-index: 1;
}

.message {
  display: flex;
  flex-direction: column;
  max-width: 75%;
  padding: 10px 14px;
  border-radius: var(--border-radius);
  position: relative;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.message.self {
  align-self: flex-end;
  background: var(--bg-message-self);
  border-bottom-right-radius: 4px;
}

.message.other {
  align-self: flex-start;
  background: var(--bg-message-other);
  border: 1px solid var(--border-color);
  border-bottom-left-radius: 4px;
}

.message .msg-sender {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.message .msg-text {
  font-size: 14px;
  line-height: 1.45;
  word-wrap: break-word;
}

.message .msg-time {
  font-size: 11px;
  color: var(--text-muted);
  align-self: flex-end;
  margin-top: 4px;
}

.message.private {
  border-left: 3px solid var(--color-warning);
  background: #fffbeb;
}

.message.private .msg-sender {
  color: var(--color-warning);
}

.message.private .msg-sender i {
  font-size: 11px;
  margin-right: 4px;
}

.message-divider {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  padding: 16px 0 8px;
  position: relative;
}

.message-divider::before,
.message-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 30%;
  height: 1px;
  background: var(--border-color);
}

.message-divider::before {
  left: 0;
}

.message-divider::after {
  right: 0;
}

.history-top-indicator,
.history-loading-indicator {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  padding: 10px 0 14px;
}

.history-loading-indicator i {
  margin-right: 6px;
}

.message .msg-reply-btn {
  position: absolute;
  right: 8px;
  top: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 12px;
  padding: 4px 6px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s, background 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  z-index: 2;
}

.message:hover .msg-reply-btn {
  opacity: 1;
}

.message .msg-reply-btn:hover {
  color: var(--color-primary);
  background: var(--bg-hover);
}

.message .msg-reply-block {
  border-left: 3px solid var(--color-primary);
  padding: 4px 10px;
  margin-bottom: 6px;
  background: rgba(0,0,0,0.03);
  border-radius: 4px;
  cursor: default;
}

.message.self .msg-reply-block {
  background: rgba(37, 99, 235, 0.06);
}

.msg-reply-block .msg-reply-sender {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 1px;
}

.msg-reply-block .msg-reply-text {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.msg-highlight {
  animation: highlightFade 1.5s ease;
}

@keyframes highlightFade {
  0%   { box-shadow: inset 0 0 0 4px #f59e0b; }
  50%  { box-shadow: inset 0 0 0 4px rgba(245, 158, 11, 0.3); }
  100% { box-shadow: inset 0 0 0 4px rgba(245, 158, 11, 0); }
}

.message .msg-file {
  margin-top: 6px;
}

.message .msg-file a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 13px;
}

.message .msg-file a:hover {
  text-decoration: underline;
}

.message .msg-file .msg-file-size {
  color: var(--text-muted);
  font-size: 11px;
  margin-left: 4px;
}

.message .msg-file i {
  color: var(--color-primary);
  margin-right: 4px;
  font-size: 14px;
}

.message .msg-image {
  max-width: 100%;
  max-height: 250px;
  border-radius: 8px;
  cursor: pointer;
  display: block;
  transition: opacity 0.2s;
}

.message .msg-image:hover {
  opacity: 0.85;
}

/* ===================== IMAGE MODAL ===================== */

#image-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  cursor: pointer;
}

#image-modal-overlay.hidden {
  display: none;
}

#image-modal-overlay img {
  max-width: 95vw;
  max-height: 95vh;
  border-radius: 8px;
  box-shadow: 0 0 30px rgba(0,0,0,0.5);
  cursor: default;
}

#image-modal-close {
  position: fixed;
  top: 20px;
  right: 24px;
  background: rgba(0,0,0,0.5);
  color: white;
  border: none;
  font-size: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  z-index: 2001;
}

#image-modal-close:hover {
  background: rgba(0,0,0,0.8);
}

/* ===================== MESSAGE INPUT ===================== */

#message-input-area {
  position: relative;
  flex-shrink: 0;
  padding: 12px 24px 16px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}

#private-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin-bottom: 8px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  color: var(--text-primary);
}

#private-indicator i {
  color: var(--color-warning);
}

#private-indicator button {
  margin-left: auto;
}

.input-row {
  display: flex;
  gap: 8px;
}

#message-input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 14px;
  background: var(--bg-input);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
}

#message-input:focus {
  border-color: var(--color-primary);
}

#message-input::placeholder {
  color: var(--text-muted);
}

.send-btn {
  padding: 12px 20px;
  border-radius: var(--border-radius);
}

.input-action-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  padding: 8px 10px;
  cursor: pointer;
  border-radius: var(--border-radius-sm);
  transition: background 0.15s, color 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.input-action-btn:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}

#emoji-picker {
  position: absolute;
  bottom: 100%;
  left: 12px;
  margin-bottom: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  z-index: 100;
  max-height: 200px;
  overflow-y: auto;
}

#emoji-picker.hidden {
  display: none;
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
}

.emoji-btn {
  background: none;
  border: none;
  font-size: 22px;
  padding: 4px;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.15s;
  text-align: center;
  line-height: 1;
}

.emoji-btn:hover {
  background: var(--bg-hover);
}

#file-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin-top: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 13px;
}

#file-preview > i {
  color: var(--color-primary);
  font-size: 18px;
  flex-shrink: 0;
}

#file-preview-name {
  flex: 1;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#file-preview-size {
  color: var(--text-muted);
  font-size: 12px;
  flex-shrink: 0;
}

#file-preview-remove {
  color: var(--text-muted);
  flex-shrink: 0;
}

#file-preview-remove:hover {
  color: var(--color-danger);
}

/* ===================== REPLY INDICATOR ===================== */

#reply-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin-bottom: 8px;
  background: var(--color-primary-light);
  border: 1px solid var(--color-primary);
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  color: var(--text-primary);
}

#reply-indicator i {
  color: var(--color-primary);
}

.reply-preview-text {
  flex: 1;
  color: var(--text-secondary);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#reply-indicator button {
  margin-left: auto;
  flex-shrink: 0;
}

/* ===================== SIDEBAR USERS ===================== */

#sidebar-users {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

#room-users-list {
  padding: 2px 8px;
  max-height: 120px;
  overflow-y: auto;
  flex-shrink: 0;
}

#all-users-list {
  flex: 1;
  overflow-y: auto;
  padding: 2px 8px;
  min-height: 0;
}

.sidebar-label {
  padding: 8px 16px 2px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  font-weight: 600;
  flex-shrink: 0;
}

.user-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background 0.15s;
  font-size: 14px;
}

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

.user-item .user-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  flex-shrink: 0;
}

.user-item .user-name {
  flex: 1;
  font-weight: 500;
}

.user-item .pm-icon {
  color: var(--text-muted);
  font-size: 12px;
  opacity: 0;
  transition: opacity 0.15s;
}

.user-item:hover .pm-icon {
  opacity: 1;
}

/* ===================== SIDEBAR CREDIT ===================== */

.sidebar-credit {
  padding: 10px 12px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.35;
  flex-shrink: 0;
  font-weight: 600;
  letter-spacing: 0.3px;
}

/* ===================== MODAL ===================== */

#modal-overlay,
#terms-modal-overlay,
#create-modal-overlay,
#password-modal-overlay,
#pwd-change-modal-overlay,
#name-modal-overlay,
#location-modal-overlay,
#cert-modal-overlay,
#admin-edit-user-overlay,
#admin-room-pwd-overlay,
#create-dept-modal-overlay,
#department-select-overlay,
#add-friend-modal-overlay,
#group-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

#modal-overlay.hidden,
#terms-modal-overlay.hidden,
#create-modal-overlay.hidden,
#password-modal-overlay.hidden,
#pwd-change-modal-overlay.hidden,
#name-modal-overlay.hidden,
#location-modal-overlay.hidden,
#cert-modal-overlay.hidden,
#admin-edit-user-overlay.hidden,
#admin-room-pwd-overlay.hidden,
#create-dept-modal-overlay.hidden,
#department-select-overlay.hidden,
#add-friend-modal-overlay.hidden,
#group-modal-overlay.hidden {
  display: none;
}

.modal-box,
#modal {
  background: var(--bg-surface);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 400px;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}

.modal-header h3 {
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-header h3 i {
  color: var(--color-primary);
}

.modal-body {
  padding: 20px 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
}

/* ===================== TOAST ===================== */

#toast-container {
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cert-banner {
  width: 100%;
  max-width: 400px;
  margin-bottom: 16px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--border-radius-sm);
  padding: 12px 14px;
}

.cert-banner-content {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.cert-banner-icon {
  color: var(--color-success);
  font-size: 20px;
}

.cert-banner-text {
  flex: 1;
  min-width: 180px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text-secondary);
}

.cert-banner-text strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.cert-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.15s;
}

a.cert-btn {
  background: var(--color-success);
  color: white;
}

a.cert-btn:hover {
  background: #16a34a;
}

.cert-btn-secondary {
  background: var(--bg-input);
  color: var(--text-secondary);
}

.cert-btn-secondary:hover {
  background: var(--border-color);
}

.cert-btn-close {
  background: transparent;
  color: var(--text-muted);
  padding: 6px 8px;
}

.cert-btn-close:hover {
  color: var(--text-primary);
}

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

.cert-btn-dismiss:hover {
  background: var(--color-primary-hover);
}

/* ===================== CERT MODAL STEPS ===================== */

.cert-modal-box {
  max-width: 640px;
}

.cert-modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  max-height: 60vh;
}

/* ===================== LOGIN FOOTER ===================== */
.login-footer {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.login-privacy-link {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s;
}

.login-privacy-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ===================== PRIVACY BANNER ===================== */
#privacy-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--color-primary-light);
  border-bottom: 1px solid var(--color-primary);
  font-size: 13px;
  color: var(--text-primary);
  flex-shrink: 0;
}

#privacy-banner i {
  color: var(--color-primary);
  font-size: 16px;
}

#privacy-banner a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

#privacy-banner a:hover {
  text-decoration: underline;
}

#privacy-banner button {
  margin-left: auto;
  color: var(--color-primary);
}

/* ===================== TERMS MODAL ===================== */
.terms-modal-box {
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.terms-modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 24px 16px;
}

.terms-content {
  padding: 16px 0;
}

.terms-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 16px 0 6px;
}

.terms-content h4:first-child {
  margin-top: 0;
}

.terms-content p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.terms-content ul {
  margin: 4px 0 8px 20px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
}

.terms-content li {
  margin-bottom: 2px;
}

.terms-legal-refs {
  margin-top: 16px !important;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
  font-size: 12px !important;
  color: var(--text-muted) !important;
}

.terms-checkbox-area {
  padding: 16px;
  background: var(--bg-input);
  border-radius: var(--border-radius-sm);
  margin-bottom: 8px;
}

.terms-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-primary);
  cursor: pointer;
  line-height: 1.4;
}

.terms-checkbox-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
  margin-top: 1px;
  flex-shrink: 0;
  cursor: pointer;
}

.terms-privacy-link {
  margin-top: 8px !important;
  font-size: 13px;
  text-align: center;
}

.terms-privacy-link a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.terms-privacy-link a:hover {
  text-decoration: underline;
}

.cert-intro {
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.cert-step {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.cert-step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.cert-step-content {
  flex: 1;
  min-width: 0;
}

.cert-step-content p {
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 8px;
}

.cert-step-img {
  width: 100%;
  max-width: 560px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  display: block;
  background: var(--bg-input);
  min-height: 60px;
  object-fit: contain;
}

.cert-final {
  text-align: center;
  padding: 16px 20px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--border-radius-sm);
  color: var(--color-success);
  font-weight: 600;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.cert-final i {
  font-size: 20px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--border-radius-sm);
  background: var(--text-primary);
  color: var(--text-inverse);
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 320px;
}

.toast i {
  color: var(--color-accent);
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===================== SCROLLBAR ===================== */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ===================== REACTIONS ===================== */

.msg-reactions {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
  align-items: center;
}

.msg-reaction {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 8px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-surface);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  line-height: 1.4;
}

.msg-reaction:hover {
  background: var(--bg-hover);
  border-color: var(--color-primary);
}

.msg-reaction.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

.msg-add-reaction {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 1px dashed var(--border-color);
  border-radius: 12px;
  background: transparent;
  font-size: 10px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  padding: 0;
  flex-shrink: 0;
}

.msg-add-reaction:hover {
  background: var(--bg-hover);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.reaction-picker {
  position: fixed;
  display: flex;
  gap: 2px;
  padding: 6px 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  z-index: 10000;
}

.reaction-picker button {
  font-size: 20px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  padding: 0;
}

.reaction-picker button:hover {
  background: var(--bg-hover);
  transform: scale(1.2);
}

/* ===================== RECORDING ===================== */

#recording-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin-bottom: 8px;
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  color: var(--color-danger);
}

.rec-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-danger);
  animation: recPulse 1s ease-in-out infinite;
}

@keyframes recPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

#rec-timer {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 40px;
}

#recording-indicator button {
  color: var(--color-danger) !important;
}

#recording-indicator button:hover {
  background: rgba(239, 68, 68, 0.1) !important;
}

#rec-cancel-btn {
  margin-left: auto;
}

/* ===================== AUDIO PLAYER ===================== */

.msg-audio {
  margin-top: 4px;
}

.msg-audio audio {
  width: 100%;
  max-width: 280px;
  height: 36px;
  border-radius: 4px;
}

/* ===================== RESPONSIVE ===================== */

/* ===================== PANIC BUTTON ===================== */

.sidebar-panic-btn {
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: var(--border-radius-sm);
  background: var(--color-danger);
  color: white;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background 0.2s, transform 0.1s;
  letter-spacing: 0.5px;
}

.sidebar-panic-btn:hover {
  background: #dc2626;
}

.sidebar-panic-btn:active {
  transform: scale(0.98);
}

/* ===================== PANIC MODAL ===================== */

#panic-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  backdrop-filter: blur(4px);
}

#panic-modal-overlay.hidden {
  display: none;
}

#panic-modal {
  border: 3px solid var(--color-danger);
  max-width: 420px;
}

.panic-modal-header {
  background: var(--color-danger);
  color: white;
  padding: 16px 24px;
  border-radius: 12px 12px 0 0;
}

.panic-modal-header h3 i {
  color: white !important;
}

.panic-modal-body {
  text-align: center;
  padding: 32px 24px;
}

.panic-icon-container {
  font-size: 64px;
  color: var(--color-danger);
  margin-bottom: 16px;
  animation: panicBounce 0.6s ease-in-out infinite alternate;
}

@keyframes panicBounce {
  from { transform: translateY(0); }
  to { transform: translateY(-8px); }
}

@keyframes fadeOut {
  to { opacity: 0; }
}

.panic-message {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.panic-timestamp {
  font-size: 13px;
  color: var(--text-muted);
}

.panic-location {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 4px;
  margin-bottom: 8px;
}

.panic-location strong {
  color: var(--text-primary);
}

.panic-btn-ok {
  background: var(--color-danger);
}

.panic-btn-ok:hover {
  background: #dc2626;
}

@media (max-width: 768px) {
  #sidebar-rooms {
    width: 180px;
  }
  #sidebar-users {
    width: 180px;
  }
  .message {
    max-width: 90%;
  }
}

/* ===================== RESPONSIVE ≤ 768px ===================== */

@media (max-width: 768px) {
  /* ---------- Mobile-only elements ---------- */
  .mobile-only {
    display: inline-flex !important;
  }

  /* ---------- Header ---------- */
  #chat-header {
    padding: 0 12px;
  }
  .header-title,
  .header-display-name {
    display: none !important;
  }
  .header-user {
    padding: 2px 6px 2px 2px;
    gap: 4px;
  }

  /* ---------- Menú de opciones del usuario (nombre, contraseña, ubicación, departamento) ---------- */
  #header-user-menu {
    position: fixed;
    top: var(--header-height);
    right: 8px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    min-width: 220px;
    z-index: 950;
    overflow: hidden;
  }
  #header-user-menu.open {
    display: flex;
  }
  #header-user-menu .header-edit-btn {
    display: flex !important;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    width: 100%;
    padding: 13px 16px;
    font-size: 14px !important;
    color: var(--text-primary) !important;
    border-radius: 0;
  }
  #header-user-menu .header-edit-btn:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
  }
  .header-edit-label {
    display: inline;
  }
  .header-right {
    gap: 4px;
  }
  #logout-btn {
    font-size: 15px !important;
    padding: 6px !important;
  }
  .header-logo i {
    font-size: 20px;
    padding: 6px;
  }

  /* ---------- Drawer overlay ---------- */
  #drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 899;
    display: none;
  }
  #drawer-overlay.hidden {
    display: none !important;
  }
  #drawer-overlay:not(.hidden) {
    display: block;
  }

  /* ---------- Left drawer (#sidebar-rooms) ---------- */
  #sidebar-rooms {
    position: fixed;
    top: var(--header-height);
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: calc(100vh - var(--header-height));
    z-index: 900;
    transition: left 0.25s ease;
    box-shadow: 4px 0 12px rgba(0,0,0,0.15);
    overflow-y: auto;
  }
  #sidebar-rooms.left-open {
    left: 0;
  }

  /* ---------- Right drawer (#sidebar-users) ---------- */
  #sidebar-users {
    position: fixed;
    top: var(--header-height);
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: calc(100vh - var(--header-height));
    z-index: 900;
    transition: right 0.25s ease;
    box-shadow: -4px 0 12px rgba(0,0,0,0.15);
    overflow-y: auto;
  }
  #sidebar-users.right-open {
    right: 0;
  }
  #room-users-list {
    max-height: 30%;
  }

  /* ---------- Main layout ---------- */
  #main-container {
    width: 100%;
  }
  #chat-main {
    flex: 1;
    min-width: 0;
  }

  /* ---------- Messages ---------- */
  #messages-container {
    padding: 12px;
  }
  .message {
    max-width: 90%;
  }
  .message .msg-reply-btn {
    opacity: 1;
  }

  /* ---------- Message input ---------- */
  #message-input-area {
    padding: 8px 12px 12px;
  }
  .input-action-btn {
    font-size: 16px;
    padding: 6px 8px;
  }
  .send-btn {
    padding: 10px 14px;
  }
  #message-input {
    padding: 10px 12px;
    font-size: 15px;
  }

  /* ---------- Emoji picker ---------- */
  .emoji-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  #emoji-picker {
    left: 8px;
    right: 8px;
    max-height: 160px;
  }

  /* ---------- Modals ---------- */
  .modal-box {
    width: 95%;
    max-width: none;
  }
  .modal-header {
    padding: 16px 18px 0;
  }
  .modal-header h3 {
    font-size: 16px;
  }
  .modal-body {
    padding: 16px 18px;
  }
  .modal-footer {
    padding: 12px 18px;
  }
  .cert-modal-box,
  .terms-modal-box {
    max-width: none;
  }
  .cert-modal-body {
    max-height: 70vh;
    padding: 16px 18px;
  }
  .cert-step-img {
    max-width: 100%;
  }

  /* ---------- Login ---------- */
  .login-card {
    padding: 24px 20px;
  }
  .login-logo-img {
    width: 100px;
  }
  .login-logo h1 {
    font-size: 20px;
  }

  /* ---------- Admin ---------- */
  #admin-view-header {
    padding: 12px 14px 0;
  }
  #admin-view-header h2 {
    font-size: 17px;
    margin-bottom: 10px;
  }
  .admin-subtabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .admin-subtab {
    padding: 8px 10px;
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  #admin-view-body {
    padding: 14px;
  }
  .admin-section-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .admin-search-box {
    max-width: none;
  }
  .admin-stats {
    gap: 8px;
  }
  .admin-stat-card {
    padding: 14px 10px;
  }
  .admin-stat-value {
    font-size: 22px;
  }
  .admin-user-item,
  .admin-room-item {
    padding: 10px 12px;
  }

  /* ---------- Toast ---------- */
  #toast-container {
    left: 16px;
    right: 16px;
    bottom: 12px;
  }
  .toast {
    max-width: none;
  }
}

/* ===== Panel de administración: registro de errores ===== */
.admin-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 6px;
  border-radius: 9px;
  background: var(--color-danger);
  color: white;
  font-size: 11px;
  font-weight: 700;
}

.admin-errors-filter {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
}

.admin-errors-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin: -6px 0 12px;
}

.admin-error-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

.admin-error-item:last-child {
  border-bottom: none;
}

.admin-error-item.resolved {
  opacity: 0.6;
}

.admin-error-head {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.admin-error-message {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
  margin-bottom: 4px;
}

.admin-error-status {
  display: inline-block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--color-success);
}

.admin-error-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.admin-error-stack {
  margin: 10px 0 0;
  padding: 10px 12px;
  max-height: 260px;
  overflow: auto;
  background: var(--bg-input);
  border-radius: 6px;
  font-family: Consolas, 'Courier New', monospace;
  font-size: 11px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-primary);
}

/* Canales globales: no se muestra la lista de quienes están en la sala. */
.room-users-hidden-note {
  padding: 8px 12px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.4;
}