/* ===== Modern UI Polish - Complete Design System ===== */

:root {
  --ui-bg: #f1f5f9;
  --ui-surface: #ffffff;
  --ui-surface-soft: #f8fafc;
  --ui-border: #e2e8f0;
  --ui-border-strong: #cbd5e1;
  --ui-text: #0f172a;
  --ui-muted: #64748b;

  --ui-primary: #6366f1;
  --ui-primary-dark: #4f46e5;
  --ui-primary-soft: #eef2ff;
  --ui-primary-glow: rgba(99, 102, 241, 0.15);

  --ui-accent: #0d9488;
  --ui-accent-soft: #ccfbf1;

  --ui-success: #10b981;
  --ui-warning: #f59e0b;
  --ui-danger: #ef4444;

  --ui-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --ui-shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.11);
  --ui-shadow-soft: 0 2px 12px rgba(15, 23, 42, 0.06);
  --ui-radius: 10px;
  --ui-radius-sm: 8px;
  --ui-radius-lg: 16px;
}

* {
  letter-spacing: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  color: var(--ui-text) !important;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(99, 102, 241, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 60% 80% at 80% 100%, rgba(13, 148, 136, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, #f8fafc 0%, #f1f5f9 40%, #eef2ff 100%) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 25%, rgba(99, 102, 241, 0.03) 0%, transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(13, 148, 136, 0.03) 0%, transparent 35%);
  pointer-events: none;
}

a {
  color: var(--ui-primary);
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

a:hover {
  color: var(--ui-primary-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 38px;
  border-radius: var(--ui-radius-sm);
  font-weight: 600;
  line-height: 1.2;
  box-shadow: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn i {
  line-height: 1;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--ui-shadow-soft);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn-sm {
  min-height: 32px;
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
}

.btn-lg {
  min-height: 46px;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%) !important;
  border: none !important;
  color: #fff !important;
  box-shadow: 0 2px 10px var(--ui-primary-glow);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%) !important;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.25);
}

.btn-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
  border: none !important;
  color: #fff !important;
}

.btn-warning {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%) !important;
  border: none !important;
  color: #fff !important;
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
  border: none !important;
  color: #fff !important;
}

.btn-light,
.btn-outline-secondary {
  border-color: var(--ui-border) !important;
  color: #334155 !important;
  background-color: #fff !important;
}

.btn-light:hover,
.btn-outline-secondary:hover {
  background: #f8fafc !important;
  border-color: #cbd5e1 !important;
  color: #0f172a !important;
}

.btn-outline-primary {
  border-color: #c7d2fe !important;
  color: var(--ui-primary) !important;
}

.btn-outline-primary:hover {
  background: var(--ui-primary-soft) !important;
  border-color: #a5b4fc !important;
  color: var(--ui-primary-dark) !important;
}

.btn-link {
  min-height: auto;
  color: var(--ui-primary) !important;
  font-weight: 600;
  text-decoration: none;
}

.btn-link:hover {
  color: var(--ui-primary-dark) !important;
  text-decoration: underline;
  box-shadow: none;
}

.btn-save,
.admin-settings-page .admin-upload-limit-save {
  background: linear-gradient(135deg, #6366f1 0%, #0d9488 100%) !important;
  border: 0 !important;
  color: #fff !important;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.2);
}

.form-control,
.form-select,
.input-group-text {
  min-height: 42px;
  border-color: var(--ui-border) !important;
  border-radius: var(--ui-radius-sm) !important;
  color: var(--ui-text);
  font-size: 0.95rem;
}

.form-control::placeholder {
  color: #94a3b8;
}

.input-group-text {
  background: #f8fafc;
}

.form-control,
.form-select {
  background-color: #fff;
  box-shadow: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: #a5b4fc !important;
  box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.12) !important;
}

.form-label {
  color: #334155;
  font-weight: 650;
  font-size: 0.9rem;
}

.form-text,
.text-muted {
  color: var(--ui-muted) !important;
}

.card,
.panel,
.profile-card,
.settings-card,
.stat-card,
.user-table,
.guest-table,
.ip-table,
.add-ip-form {
  border: 1px solid var(--ui-border) !important;
  border-radius: var(--ui-radius-lg) !important;
  box-shadow: var(--ui-shadow) !important;
  background: rgba(255, 255, 255, 0.96) !important;
  backdrop-filter: blur(12px);
}

.card-header,
.modal-header {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%) !important;
  border-bottom-color: var(--ui-border) !important;
}

.navbar {
  border-bottom: 1px solid rgba(226, 232, 240, 0.6) !important;
  background: rgba(255, 255, 255, 0.82) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04) !important;
}

.navbar-brand {
  color: #0f172a !important;
  font-weight: 750;
  font-size: 1.15rem;
}

.messages-container {
  background:
    radial-gradient(ellipse 70% 50% at 50% 30%, rgba(99, 102, 241, 0.04) 0%, transparent 50%),
    linear-gradient(180deg, #f1f5f9 0%, #f8fafc 40%, #eef2ff 100%) !important;
}

.messages-container.messages-initializing {
  visibility: hidden;
}

.chat-container {
  border: 1px solid rgba(226, 232, 240, 0.6) !important;
  box-shadow: var(--ui-shadow-lg) !important;
}

.message {
  width: 100%;
  max-width: min(680px, 86%);
  margin-bottom: 12px;
  gap: 10px;
  align-items: flex-start;
}

.message-self {
  margin-left: auto;
}

.message-other {
  margin-right: auto;
}

.message .avatar {
  width: 36px !important;
  height: 36px !important;
  min-width: 36px !important;
  max-width: 36px !important;
  min-height: 36px !important;
  max-height: 36px !important;
  flex: 0 0 36px !important;
  border-radius: 50% !important;
  border: 2px solid #fff !important;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.1) !important;
  object-fit: cover !important;
}

.message-bubble {
  max-width: 100%;
  padding: 9px 14px;
  border-radius: 16px 16px 16px 5px !important;
  background: #fff !important;
  color: #1e293b !important;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06) !important;
  border: 1px solid rgba(226, 232, 240, 0.8) !important;
  line-height: 1.5;
}

.message-self .message-bubble {
  border-radius: 16px 16px 5px 16px !important;
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%) !important;
  border-color: transparent !important;
  color: #fff !important;
  box-shadow: 0 3px 12px rgba(99, 102, 241, 0.25) !important;
}

.message-text {
  font-size: 0.93rem;
  line-height: 1.5;
  margin: 0;
  overflow-wrap: anywhere;
}

.message-info {
  font-size: 0.75rem !important;
  color: #64748b !important;
  margin-bottom: 4px;
  padding: 0 4px;
}

.message-self .message-info {
  color: #64748b !important;
}

.message-info .user-name {
  font-size: 0.78rem !important;
  color: #334155 !important;
  font-weight: 650;
}

.message-self .message-info .user-name {
  color: #334155 !important;
}

.user-location {
  font-size: 0.7rem !important;
  color: #94a3b8 !important;
}

.admin-badge {
  background: linear-gradient(135deg, #ef4444, #dc2626) !important;
  color: #fff !important;
  padding: 2px 7px !important;
  border-radius: 999px !important;
  font-size: 0.68rem !important;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  line-height: 1.3;
}

.message-self .admin-badge {
  background: linear-gradient(135deg, #ef4444, #dc2626) !important;
  color: #fff !important;
}

.guest-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px !important;
  border: 1px solid #cbd5e1;
  border-radius: 6px !important;
  background: #e2e8f0 !important;
  color: #334155 !important;
  font-size: 0.68rem !important;
  font-weight: 700;
  line-height: 1.3;
}

.message-time-divider-text {
  background: rgba(148, 163, 184, 0.14) !important;
  color: #94a3b8 !important;
  font-size: 0.7rem !important;
  padding: 3px 10px !important;
  border-radius: 6px !important;
}

.message-input-container {
  background: rgba(255, 255, 255, 0.9) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border-top: 1px solid rgba(226, 232, 240, 0.7) !important;
  box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.06) !important;
  padding: 12px clamp(14px, 4vw, 40px) calc(12px + env(safe-area-inset-bottom)) !important;
}

.chat-input-bar {
  background: #f1f5f9 !important;
  border-radius: 12px !important;
  padding: 8px 12px !important;
  gap: 8px;
}

.compose-input-wrap {
  background: #fff !important;
  border-radius: 8px !important;
  border: 1px solid var(--ui-border) !important;
}

.compose-input-wrap .form-control {
  min-height: 38px !important;
  border: 0 !important;
  resize: none;
  padding: 8px 12px !important;
  box-shadow: none !important;
  background: transparent !important;
  font-size: 0.95rem;
  line-height: 1.45;
}

.compose-icon-btn {
  width: 38px !important;
  height: 38px !important;
  flex: 0 0 38px !important;
  border-radius: 10px !important;
  border: 1px solid var(--ui-border) !important;
  background: #fff !important;
  color: #475569 !important;
  transition: all 0.15s ease;
}

.compose-icon-btn:hover:not(:disabled) {
  background: #f1f5f9 !important;
  border-color: #cbd5e1 !important;
  color: var(--ui-primary) !important;
}

.compose-send-btn {
  background: var(--ui-primary) !important;
  border: none !important;
  color: #fff !important;
  border-radius: 10px !important;
  width: 38px !important;
  height: 38px !important;
}

.compose-send-btn:hover:not(:disabled) {
  background: var(--ui-primary-dark) !important;
}

.sidebar {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(24px) !important;
  -webkit-backdrop-filter: blur(24px) !important;
  box-shadow: var(--ui-shadow-lg) !important;
  border-right: 1px solid rgba(226, 232, 240, 0.6) !important;
}

.sidebar-header {
  padding: 24px 20px !important;
  border-bottom: 1px solid var(--ui-border) !important;
}

.user-avatar {
  width: 56px !important;
  height: 56px !important;
  border-radius: 50% !important;
  border: 2px solid #fff !important;
  box-shadow: 0 3px 12px rgba(15, 23, 42, 0.12) !important;
}

.user-name {
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  color: #0f172a !important;
}

.user-id {
  font-size: 0.8rem !important;
  color: #94a3b8 !important;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px !important;
  color: #475569 !important;
  text-decoration: none !important;
  border-radius: var(--ui-radius-sm) !important;
  transition: all 0.2s ease;
  margin-bottom: 4px;
  font-weight: 550;
}

.menu-item:hover {
  background: var(--ui-primary-soft) !important;
  color: var(--ui-primary-dark) !important;
  transform: translateX(3px);
}

.menu-item i {
  width: 20px;
  text-align: center;
  color: #94a3b8;
}

.menu-item:hover i {
  color: var(--ui-primary);
}

.online-users {
  width: min(340px, 100vw) !important;
  right: -360px !important;
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(24px) !important;
  -webkit-backdrop-filter: blur(24px) !important;
  box-shadow: var(--ui-shadow-lg) !important;
  border-left: 1px solid rgba(226, 232, 240, 0.6) !important;
}

.online-users.show {
  right: 0 !important;
}

.online-users-header {
  min-height: 60px;
  padding: 14px 18px !important;
  border-bottom: 1px solid var(--ui-border) !important;
  background: rgba(248, 250, 252, 0.9) !important;
}

.online-users-header h5 {
  font-weight: 700;
  color: #0f172a;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
  white-space: nowrap;
  font-size: 1rem;
  letter-spacing: 0;
}

.online-users-header h5 .online-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0 !important;
  width: auto !important;
  height: auto !important;
  padding: 0 2px !important;
  border-radius: 0 !important;
  background: transparent !important;
  color: var(--ui-primary) !important;
  font-size: inherit !important;
  font-weight: 800;
}

.online-title-text {
  display: inline-flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
}

.online-users-list {
  padding: 10px 10px 16px;
}

.user-item {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch !important;
  gap: 8px;
  min-height: 0;
  padding: 10px !important;
  border-radius: 10px !important;
  margin-bottom: 7px !important;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%) !important;
  border: 1px solid rgba(226, 232, 240, 0.85) !important;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.045) !important;
  transition: all 0.2s ease;
}

.user-item.has-actions {
  grid-template-columns: minmax(0, 1fr) auto !important;
  align-items: center !important;
}

.user-item:hover {
  border-color: #a5b4fc !important;
  background: var(--ui-primary-soft) !important;
  box-shadow: 0 10px 24px rgba(99, 102, 241, 0.12) !important;
  transform: translateX(-2px);
}

.user-item.is-offline {
  background: #f8fafc !important;
  border-color: rgba(226, 232, 240, 0.72) !important;
}

.user-item.is-offline .online-avatar-wrap img,
.user-item.is-offline .user-item-display-name {
  opacity: 0.72;
}

.user-item.is-muted {
  border-color: rgba(248, 113, 113, 0.34) !important;
}

.user-item-main {
  display: grid;
  grid-column: 1;
  grid-row: 1;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.user-item img {
  width: 40px !important;
  height: 40px !important;
  border-radius: 50% !important;
  object-fit: cover;
  border: 2px solid #fff !important;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12) !important;
}

.online-avatar-wrap {
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
}

.online-avatar-wrap .status-dot {
  width: 10px;
  height: 10px;
  right: 3px !important;
  bottom: 3px !important;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.08);
}

.user-item-info {
  min-width: 0;
  margin-left: 0 !important;
}

.user-item-name {
  display: flex !important;
  align-items: center !important;
  flex-wrap: wrap;
  gap: 4px 6px !important;
  min-width: 0;
  font-weight: 650 !important;
  color: #1e293b !important;
  margin-bottom: 4px !important;
}

.user-item-badges {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  flex: 0 1 auto;
  max-width: 100%;
}

.user-item-badges:empty {
  display: none;
}

.user-item-display-name {
  min-width: 0;
  max-width: 100%;
  flex: 1 1 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.94rem;
  line-height: 1.25;
}

.user-item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 7px;
  min-width: 0;
  color: #94a3b8;
  line-height: 1.35;
}

.user-item-id {
  color: #334155;
  font-size: 0.84rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.member-status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 2px 6px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
}

.member-status-badge.is-online {
  color: #047857;
  background: #d1fae5;
}

.member-status-badge.is-offline {
  color: #64748b;
  background: #f1f5f9;
}

.user-item-location {
  display: inline-flex !important;
  align-items: center !important;
  gap: 4px !important;
  min-width: 0;
  max-width: 100%;
  margin: 0 !important;
  font-size: 0.76rem !important;
  color: #94a3b8 !important;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-item-location i {
  flex: 0 0 auto;
  color: #94a3b8 !important;
  font-size: 0.78rem !important;
}

.user-item-location span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-item-actions {
  grid-column: 2;
  grid-row: 1;
  width: auto;
  display: flex !important;
  flex-direction: column;
  align-items: center !important;
  justify-self: end;
  align-self: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
  gap: 6px !important;
  margin-left: 8px !important;
  padding-top: 0;
  border-top: 0;
}

.user-item-actions .btn {
  min-height: 26px !important;
  padding: 0.2rem 0.46rem !important;
  border-radius: 7px !important;
  font-size: 0.72rem !important;
  white-space: nowrap;
  gap: 4px;
  box-shadow: none !important;
}

.user-item-actions .btn i {
  font-size: 0.74rem;
}

.user-item-actions .muted-badge {
  min-height: 26px;
  padding: 3px 7px;
}

.online-users .admin-badge,
.online-users .user-title-badge,
.online-users .guest-badge {
  min-height: 18px !important;
  padding: 2px 6px !important;
  border-radius: 999px !important;
  font-size: 0.66rem !important;
  line-height: 1 !important;
}

.online-users .guest-badge {
  border-radius: 6px !important;
  background: #e2e8f0 !important;
  color: #334155 !important;
}

.online-users .close-users-list {
  width: 32px !important;
  height: 32px !important;
  border-radius: 8px !important;
  color: #64748b !important;
  background: transparent !important;
}

.online-users .close-users-list:hover {
  color: #0f172a !important;
  background: #f1f5f9 !important;
}

@media (max-width: 768px) {
  .online-users {
    width: 100% !important;
    right: -100% !important;
    background: rgba(248, 250, 252, 0.98) !important;
  }

  .online-users.show {
    right: 0 !important;
  }

  .online-users-list {
    padding: 8px 8px 16px;
  }

  .online-users-header {
    min-height: 52px;
    padding: 10px 14px !important;
  }

  .online-users-header h5 {
    font-size: 0.96rem;
  }

  .user-item {
    grid-template-columns: minmax(0, 1fr);
    align-items: center !important;
    gap: 8px;
    padding: 8px 9px !important;
    margin-bottom: 6px !important;
    border-radius: 9px !important;
    box-shadow: none !important;
    transform: none !important;
  }

  .user-item-main {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 8px;
    min-width: 0;
  }

  .user-item img {
    width: 34px !important;
    height: 34px !important;
    border-width: 1px !important;
  }

  .online-avatar-wrap {
    width: 36px;
    height: 36px;
  }

  .online-avatar-wrap .status-dot {
    width: 8px;
    height: 8px;
    right: 2px !important;
    bottom: 2px !important;
  }

  .user-item-name {
    gap: 3px 5px !important;
    margin-bottom: 2px !important;
  }

  .user-item-display-name {
    font-size: 0.88rem;
    flex-basis: 80px;
  }

  .user-item-meta {
    gap: 3px 6px;
  }

  .user-item-id {
    font-size: 0.76rem;
  }

  .member-status-badge {
    min-height: 17px;
    padding: 1px 5px;
    font-size: 0.64rem;
  }

  .user-item-location {
    font-size: 0.72rem !important;
  }

  .online-users .admin-badge,
  .online-users .user-title-badge,
  .online-users .guest-badge {
    min-height: 17px !important;
    padding: 1px 6px !important;
    font-size: 0.62rem !important;
  }

  .user-item-actions {
    width: auto;
    align-self: center;
    justify-self: end;
    justify-content: flex-end;
    flex-direction: column;
    flex-wrap: nowrap;
    padding-top: 0;
    border-top: 0;
    gap: 4px !important;
    margin-left: 4px !important;
  }

  .user-item-actions .btn {
    min-height: 26px !important;
    min-width: 64px;
    padding: 0.16rem 0.42rem !important;
    border-radius: 7px !important;
    font-size: 0.68rem !important;
  }

  .user-item-actions .btn i {
    font-size: 0.66rem;
  }

  .user-item-actions .muted-badge {
    min-height: 24px;
    padding: 3px 6px;
    font-size: 0.64rem;
  }
}

.overlay {
  background: rgba(15, 23, 42, 0.4) !important;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.toggle-users,
.menu-toggle,
.mobile-more-toggle {
  width: 38px !important;
  height: 38px !important;
  border-radius: 10px !important;
  background: #fff !important;
  color: #475569 !important;
  border: 1px solid var(--ui-border) !important;
  box-shadow: var(--ui-shadow-soft) !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease !important;
}

.toggle-users:hover,
.menu-toggle:hover,
.mobile-more-toggle:hover {
  background: var(--ui-primary-soft) !important;
  border-color: #c7d2fe !important;
  color: var(--ui-primary) !important;
  box-shadow: var(--ui-shadow-soft);
}

.toggle-users .online-count,
.mobile-more-toggle .online-count {
  background: var(--ui-danger) !important;
  font-size: 0.65rem !important;
  font-weight: 700;
  min-width: 18px !important;
  height: 18px !important;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 768px) {
  .desktop-top-actions {
    margin-right: 54px;
  }

  .toggle-users {
    right: 14px !important;
    top: 11px !important;
  }
}

.alert {
  border-radius: var(--ui-radius-sm) !important;
  border: 1px solid transparent !important;
}

.alert-success {
  background: #ecfdf5 !important;
  border-color: #a7f3d0 !important;
  color: #065f46 !important;
}

.alert-danger {
  background: #fef2f2 !important;
  border-color: #fecaca !important;
  color: #991b1b !important;
}

.alert-warning {
  background: #fffbeb !important;
  border-color: #fde68a !important;
  color: #92400e !important;
}

.alert-info {
  background: var(--ui-primary-soft) !important;
  border-color: #c7d2fe !important;
  color: var(--ui-primary-dark) !important;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 22px;
  border-radius: 999px;
  font-weight: 650;
  line-height: 1;
}

.dropdown-menu {
  border: 1px solid var(--ui-border) !important;
  border-radius: 12px !important;
  box-shadow: 0 16px 42px rgba(15, 23, 42, 0.14) !important;
  padding: 6px !important;
}

.dropdown-item {
  border-radius: 8px !important;
  padding: 8px 12px !important;
  font-weight: 550;
}

.dropdown-item:hover {
  background: var(--ui-primary-soft) !important;
  color: var(--ui-primary-dark) !important;
}

.modal-content {
  border: 1px solid var(--ui-border) !important;
  border-radius: var(--ui-radius-lg) !important;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.2) !important;
}

.modal-footer {
  border-top-color: var(--ui-border) !important;
}

.table-responsive {
  border-radius: var(--ui-radius) !important;
  border: 1px solid var(--ui-border) !important;
}

.table thead th {
  background: #f8fafc;
  color: #334155;
  font-weight: 700;
  font-size: 0.85rem;
  border-bottom: 2px solid var(--ui-border) !important;
}

.auth-polish {
  display: flex;
  align-items: center;
  min-height: 100vh;
  padding: 24px 0;
  background:
    radial-gradient(ellipse 60% 50% at 30% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 50% 60% at 70% 80%, rgba(13, 148, 136, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, #f8fafc 0%, #f1f5f9 50%, #eef2ff 100%) !important;
}

.auth-polish .card {
  overflow: hidden;
  border-radius: var(--ui-radius-lg) !important;
  border: 1px solid var(--ui-border) !important;
  box-shadow: var(--ui-shadow-lg) !important;
}

.auth-polish .card-header {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%) !important;
  border-bottom: 1px solid var(--ui-border) !important;
  padding: 28px 24px 20px !important;
}

.auth-polish .card-header i {
  color: var(--ui-primary);
}

.auth-polish .card-header h4 {
  font-weight: 750;
  color: #0f172a;
}

.auth-polish .form-control {
  border-radius: var(--ui-radius-sm) !important;
  border: 1px solid var(--ui-border) !important;
  padding: 10px 14px !important;
  font-size: 0.95rem;
}

.auth-polish .form-control:focus {
  border-color: #a5b4fc !important;
  box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.1) !important;
}

.auth-polish .input-group-text {
  background: #f8fafc !important;
  border: 1px solid var(--ui-border) !important;
  border-right: none !important;
  color: #94a3b8;
}

.auth-polish .input-group .form-control {
  border-left: none !important;
}

.profile-header {
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%) !important;
}

.room-lock-panel {
  border: 1px solid var(--ui-border) !important;
  border-radius: var(--ui-radius-lg) !important;
  background: rgba(255, 255, 255, 0.98) !important;
  box-shadow: var(--ui-shadow-lg) !important;
}

.room-lock-icon {
  background: linear-gradient(135deg, #6366f1, #4f46e5) !important;
  border-radius: 14px !important;
}

.share-room-icon {
  background: linear-gradient(135deg, #6366f1, #4f46e5) !important;
  border-radius: 12px !important;
}

.room-switch-item {
  border: 1px solid var(--ui-border) !important;
  border-radius: var(--ui-radius) !important;
}

.room-switch-item:hover {
  border-color: #c7d2fe !important;
  background: var(--ui-primary-soft) !important;
}

.room-switch-item.active {
  border-color: var(--ui-primary) !important;
  background: var(--ui-primary-soft) !important;
}

.private-reminder {
  border: 1px solid var(--ui-border) !important;
  border-radius: var(--ui-radius-sm) !important;
  background: #fff !important;
  transition: all 0.2s ease;
}

.private-reminder:hover {
  border-color: #c7d2fe !important;
  background: var(--ui-primary-soft) !important;
}

.pm-avatar-wrap {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  overflow: hidden;
}

.pm-avatar-wrap .pm-avatar {
  width: 44px !important;
  height: 44px !important;
  max-width: 44px !important;
  max-height: 44px !important;
  border-radius: 50% !important;
  object-fit: cover !important;
}

.private-conversation-item {
  width: 100%;
  min-height: 72px;
  display: grid !important;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px !important;
  border: 1px solid var(--ui-border) !important;
  border-radius: var(--ui-radius) !important;
  background: #fff !important;
  text-align: left;
  overflow: hidden;
}

.private-conversation-item:hover {
  border-color: #c7d2fe !important;
  background: var(--ui-primary-soft) !important;
}

.private-conversation-avatar-wrap,
.admin-private-user-avatar-wrap {
  position: relative;
  width: 46px;
  height: 46px;
  min-width: 46px;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  overflow: hidden;
  background: #eef2ff;
  box-shadow: 0 0 0 2px #fff, 0 6px 14px rgba(15, 23, 42, 0.08);
}

.admin-private-user-avatar-wrap .status-dot {
  position: absolute;
  right: 1px;
  bottom: 1px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
  box-shadow: 0 0 0 2px #fff;
}

.admin-private-user-avatar-wrap .status-dot.is-online {
  background: #22c55e;
}

.private-conversation-avatar-wrap img,
.admin-private-user-avatar-wrap img {
  width: 46px !important;
  height: 46px !important;
  max-width: 46px !important;
  max-height: 46px !important;
  display: block;
  flex: 0 0 46px;
  border-radius: 50% !important;
  object-fit: cover !important;
}

.private-conversation-main,
.admin-private-user-main {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.private-conversation-top,
.private-conversation-name,
.private-conversation-preview,
.private-conversation-meta,
.admin-private-user-name,
.admin-private-user-meta {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.private-conversation-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.private-conversation-name,
.admin-private-user-name {
  color: #0f172a;
  font-weight: 800;
}

.private-conversation-preview,
.private-conversation-meta,
.admin-private-user-meta {
  color: #64748b;
  font-size: 0.82rem;
}

.private-conversation-time {
  flex: 0 0 auto;
  color: #94a3b8;
  font-size: 0.76rem;
}

.private-conversation-unread {
  justify-self: end;
}

.admin-private-user-item {
  width: 100%;
  min-height: 70px;
  display: grid !important;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px !important;
  border: 1px solid var(--ui-border) !important;
  border-radius: var(--ui-radius) !important;
  background: #fff !important;
  text-align: left;
  overflow: hidden;
}

.admin-private-user-item:hover {
  border-color: #c7d2fe !important;
  background: var(--ui-primary-soft) !important;
}

.admin-private-user-badges {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 5px;
  flex-wrap: wrap;
}

.compose-more-panel,
.compose-emoji-panel {
  border-radius: 12px !important;
  border: 1px solid var(--ui-border) !important;
  background: #fff !important;
}

.compose-more-item i {
  background: var(--ui-primary-soft) !important;
  color: var(--ui-primary) !important;
  border: 1px solid #c7d2fe !important;
}

.compose-emoji-btn:hover {
  background: var(--ui-primary-soft) !important;
}

.voice-message-play {
  background: linear-gradient(135deg, #6366f1, #4f46e5) !important;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3) !important;
}

.message-self .voice-message-play {
  background: #fff !important;
  color: var(--ui-primary) !important;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.1) !important;
}

.file-card-icon {
  border-radius: 8px !important;
}

.pagination {
  gap: 6px;
}

.page-link {
  min-width: 36px;
  border-color: var(--ui-border) !important;
  border-radius: var(--ui-radius-sm) !important;
  color: var(--ui-primary) !important;
  text-align: center;
  font-weight: 600;
}

.page-item.active .page-link {
  background: var(--ui-primary) !important;
  border-color: var(--ui-primary) !important;
  color: #fff !important;
}

.status-dot.is-online {
  background: #22c55e !important;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.9);
}

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

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

::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.3);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.5);
}

.desktop-actions-menu {
  border: 1px solid var(--ui-border) !important;
  border-radius: 12px !important;
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.16) !important;
  padding: 6px !important;
}

.desktop-actions-menu .dropdown-item {
  border-radius: 8px !important;
  padding: 8px 12px !important;
  font-weight: 600;
}

.desktop-actions-menu .dropdown-item i {
  color: var(--ui-primary) !important;
}

.desktop-actions-menu .dropdown-item.text-danger i {
  color: var(--ui-danger) !important;
}

.mobile-more-menu {
  border: 1px solid var(--ui-border) !important;
  border-radius: 14px !important;
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.18) !important;
}

.mobile-more-item {
  border-radius: 10px !important;
}

.mobile-more-item:hover {
  background: var(--ui-primary-soft) !important;
  color: var(--ui-primary) !important;
}

.mobile-more-item i {
  color: var(--ui-primary) !important;
}

.avatar-action-popover {
  border: 1px solid var(--ui-border) !important;
  border-radius: 14px !important;
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.18) !important;
}

@media (max-width: 767.98px) {
  body {
    background:
      radial-gradient(ellipse 70% 40% at 50% 0%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
      linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%) !important;
  }

  .navbar {
    min-height: 52px;
    padding: 6px 58px;
  }

  .navbar-brand {
    font-size: 1rem;
  }

  .message {
    max-width: 94%;
  }

  .message .avatar {
    width: 32px !important;
    height: 32px !important;
    flex: 0 0 32px !important;
  }

  .message-bubble {
    padding: 8px 12px;
  }

  .message-text {
    font-size: 0.9rem;
  }

  .chat-input-bar {
    padding: 6px 8px;
  }

  .compose-icon-btn {
    width: 40px !important;
    height: 40px !important;
    flex: 0 0 40px !important;
  }

  .compose-input-wrap .form-control {
    min-height: 40px;
    font-size: 1rem;
  }

  .card,
  .panel,
  .profile-card {
    border-radius: 12px !important;
  }

  .auth-polish {
    padding: 16px 0;
  }

  .menu-toggle,
  .toggle-users,
  .mobile-more-toggle {
    width: 36px !important;
    height: 36px !important;
  }
}

/* ===== Admin Sidebar Contrast Fix ===== */
.admin-sidebar.sidebar {
  color: #e8f1ff !important;
  background:
    linear-gradient(180deg, #162333 0%, #111c2a 55%, #0c1624 100%) !important;
  border-right: 1px solid rgba(148, 163, 184, 0.18) !important;
  box-shadow: 10px 0 34px rgba(2, 6, 23, 0.18) !important;
}

.admin-sidebar .admin-sidebar-brand {
  border-bottom-color: rgba(226, 232, 240, 0.14) !important;
}

.admin-sidebar .admin-sidebar-logo {
  color: #fff !important;
  background: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%) !important;
  box-shadow: 0 10px 24px rgba(14, 165, 233, 0.28) !important;
}

.admin-sidebar .admin-sidebar-brand-text h4 {
  color: #f8fafc !important;
}

.admin-sidebar .admin-sidebar-brand-text span {
  color: #93a9c5 !important;
}

.admin-sidebar .nav {
  gap: 5px !important;
}

.admin-sidebar .nav-link,
.admin-sidebar .admin-submenu-toggle {
  min-height: 42px;
  color: #d7e3f5 !important;
  background: transparent !important;
  border: 1px solid transparent !important;
  border-radius: 10px !important;
  font-weight: 650 !important;
}

.admin-sidebar .nav-link i,
.admin-sidebar .admin-submenu-toggle i:not(.admin-submenu-caret) {
  color: #7dd3fc !important;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link:focus-visible,
.admin-sidebar .admin-submenu-toggle:hover,
.admin-sidebar .admin-submenu-toggle:focus-visible,
.admin-sidebar .admin-sidebar-group.is-open > .admin-submenu-toggle:not(.active) {
  color: #fff !important;
  background: rgba(148, 163, 184, 0.14) !important;
  border-color: rgba(148, 163, 184, 0.16) !important;
  transform: none !important;
}

.admin-sidebar .nav-link:hover i,
.admin-sidebar .nav-link:focus-visible i,
.admin-sidebar .admin-submenu-toggle:hover i:not(.admin-submenu-caret),
.admin-sidebar .admin-submenu-toggle:focus-visible i:not(.admin-submenu-caret) {
  color: #bae6fd !important;
}

.admin-sidebar .nav-link.active,
.admin-sidebar .admin-submenu-toggle.active {
  color: #fff !important;
  background: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%) !important;
  border-color: rgba(255, 255, 255, 0.12) !important;
  box-shadow: 0 10px 22px rgba(37, 99, 235, 0.28) !important;
}

.admin-sidebar .nav-link.active i,
.admin-sidebar .admin-submenu-toggle.active i {
  color: #fff !important;
}

.admin-sidebar .admin-submenu {
  border-left: 1px solid rgba(148, 163, 184, 0.18);
}

.admin-sidebar .admin-submenu-link {
  color: #b8c7dc !important;
}

.admin-sidebar .admin-submenu-link i {
  color: #7dd3fc !important;
}

.admin-sidebar .admin-submenu-link:hover,
.admin-sidebar .admin-submenu-link:focus-visible {
  color: #fff !important;
  background: rgba(148, 163, 184, 0.12) !important;
}

.admin-sidebar .admin-sidebar-group > .admin-submenu-toggle.active,
.admin-sidebar .admin-sidebar-group.is-open > .admin-submenu-toggle {
  color: #f8fafc !important;
  background: rgba(15, 23, 42, 0.42) !important;
  border-color: rgba(125, 211, 252, 0.18) !important;
  box-shadow: inset 3px 0 0 #38bdf8, 0 8px 20px rgba(2, 6, 23, 0.18) !important;
}

.admin-sidebar .admin-sidebar-group > .admin-submenu-toggle.active i,
.admin-sidebar .admin-sidebar-group.is-open > .admin-submenu-toggle i {
  color: #bae6fd !important;
}

.admin-sidebar .admin-sidebar-group > .admin-submenu-toggle .admin-submenu-caret {
  color: #93a9c5 !important;
}

.admin-sidebar .admin-sidebar-group.is-open > .admin-submenu-toggle .admin-submenu-caret {
  color: #e0f2fe !important;
}

.admin-sidebar .admin-submenu-link.active {
  color: #fff !important;
  background: rgba(14, 165, 233, 0.18) !important;
  box-shadow: inset 3px 0 0 #38bdf8 !important;
}

.admin-sidebar .admin-sidebar-return {
  margin-top: auto !important;
}