/* ==========================================================================
       EXCLUSIVE INVITATION & MANDATORY ACTIVATION CODE SYSTEM
       ========================================================================== */
    .app-lockscreen-overlay {
      position: fixed;
      inset: 0;
      z-index: 99999;
      background: radial-gradient(circle at 50% 25%, #161925 0%, #07080b 85%);
      backdrop-filter: blur(40px);
      -webkit-backdrop-filter: blur(40px);
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 24px;
      overflow-y: auto;
    }

    .app-lockscreen-overlay.hidden {
      display: none !important;
    }

    .lockscreen-panel {
      position: relative;
      width: 100%;
      max-width: 480px;
      background: rgba(16, 18, 26, 0.92);
      backdrop-filter: blur(36px);
      -webkit-backdrop-filter: blur(36px);
      border: 1px solid var(--glass-border-hover);
      border-radius: var(--radius-xl);
      box-shadow: var(--glass-shadow), 0 0 80px rgba(0, 0, 0, 0.9);
      padding: 36px 32px;
      text-align: center;
      animation: lockscreenFade 0.4s var(--ease-netflix);
    }

    @keyframes lockscreenFade {
      from { opacity: 0; transform: translateY(16px) scale(0.96); }
      to { opacity: 1; transform: translateY(0) scale(1); }
    }

    .lockscreen-brand-icon {
      width: 58px;
      height: 58px;
      border-radius: 50%;
      background: var(--glass-active);
      border: 1px solid var(--glass-highlight);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      box-shadow: 0 0 30px rgba(255, 255, 255, 0.08);
    }

    .lockscreen-brand-icon svg {
      width: 30px;
      height: 30px;
      fill: #fff;
    }

    .lockscreen-pill-tag {
      font-size: 10px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: var(--silver-accent);
      display: inline-block;
      margin-bottom: 12px;
    }

    .lockscreen-title {
      font-size: 24px;
      font-weight: 900;
      letter-spacing: -0.6px;
      color: #fff;
      margin-bottom: 6px;
    }

    .lockscreen-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.45;
      margin-bottom: 24px;
    }

    .lockscreen-activation-box {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-bottom: 20px;
      text-align: left;
    }

    .nav-user-container {
      position: relative;
      display: flex;
      align-items: center;
    }

    .nav-user-pill {
      height: 38px;
      padding: 0 12px 0 6px;
      border-radius: var(--radius-full);
      background: var(--glass-base);
      border: 1px solid var(--glass-border);
      color: var(--text-main);
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.25s var(--ease-netflix);
      user-select: none;
    }

    .nav-user-pill:hover,
    .nav-user-pill.active {
      background: var(--glass-hover);
      border-color: var(--glass-border-hover);
    }

    .nav-user-avatar {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      object-fit: cover;
      border: 1.5px solid rgba(255, 255, 255, 0.2);
    }

    .nav-user-name {
      font-size: 12.5px;
      font-weight: 700;
      color: #fff;
      max-width: 110px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .nav-status-badge {
      font-size: 10px;
      font-weight: 800;
      padding: 2px 7px;
      border-radius: var(--radius-full);
      background: rgba(46, 213, 115, 0.15);
      border: 1px solid rgba(46, 213, 115, 0.35);
      color: #2ed573;
      letter-spacing: 0.4px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .nav-chevron {
      width: 13px;
      height: 13px;
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }

    .nav-user-pill.active .nav-chevron {
      transform: rotate(180deg);
    }

    /* User Dropdown Floating Menu */
    .user-dropdown-menu {
      position: absolute;
      top: calc(100% + 10px);
      right: 0;
      width: 280px;
      background: rgba(14, 16, 23, 0.95);
      backdrop-filter: blur(32px);
      -webkit-backdrop-filter: blur(32px);
      border: 1px solid var(--glass-border-hover);
      border-radius: var(--radius-md);
      box-shadow: var(--glass-shadow);
      padding: 12px;
      display: none;
      flex-direction: column;
      gap: 6px;
      z-index: 1200;
      animation: dropdownFadeIn 0.2s var(--ease-netflix);
    }

    .user-dropdown-menu.active {
      display: flex;
    }

    .dropdown-user-header {
      padding: 8px 10px 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      margin-bottom: 4px;
    }

    .dropdown-user-name {
      font-size: 14px;
      font-weight: 800;
      color: #fff;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .dropdown-user-email {
      font-size: 11.5px;
      color: var(--text-muted);
      margin-top: 2px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .dropdown-status-card {
      margin-top: 8px;
      padding: 8px 10px;
      border-radius: var(--radius-sm);
      background: rgba(46, 213, 115, 0.08);
      border: 1px solid rgba(46, 213, 115, 0.25);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .dropdown-item-btn {
      width: 100%;
      height: 38px;
      padding: 0 12px;
      border-radius: var(--radius-sm);
      background: transparent;
      border: none;
      color: var(--text-main);
      font-size: 12.5px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 10px;
      transition: all 0.2s ease;
      text-align: left;
    }

    .dropdown-item-btn:hover {
      background: var(--glass-hover);
      color: #fff;
      padding-left: 14px;
    }

    .dropdown-item-btn svg {
      width: 15px;
      height: 15px;
      color: var(--text-muted);
      flex-shrink: 0;
    }

    .dropdown-item-btn:hover svg {
      color: #fff;
    }

    .dropdown-item-btn.admin-action {
      color: #e5b958;
      background: rgba(229, 185, 88, 0.08);
      border: 1px solid rgba(229, 185, 88, 0.25);
    }

    .dropdown-item-btn.admin-action:hover {
      background: rgba(229, 185, 88, 0.18);
      border-color: rgba(229, 185, 88, 0.45);
      color: #ffdf79;
    }

    .dropdown-item-btn.logout-action {
      color: #ff7676;
    }

    .dropdown-item-btn.logout-action:hover {
      background: rgba(255, 107, 107, 0.1);
      color: #ff5555;
    }

    /* ==========================================================================
       AUTH TABS, INPUT GROUPS & ALERT BOXES (LIQUID GLASS STYLE)
       ========================================================================== */
    .auth-tabs {
      display: flex;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 4px;
      margin-bottom: 22px;
      gap: 4px;
    }

    .auth-tab-btn {
      flex: 1;
      height: 38px;
      border: none;
      background: transparent;
      color: var(--text-muted);
      font-size: 13px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .auth-tab-btn:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
    }

    .auth-tab-btn.active {
      background: var(--glass-active);
      color: #fff;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    }

    .glass-input-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 16px;
      text-align: left;
    }

    .glass-input-label {
      font-size: 11.5px;
      font-weight: 700;
      color: var(--text-muted);
      letter-spacing: 0.3px;
    }

    .auth-forgot-link {
      font-size: 11.5px;
      color: var(--text-muted);
      cursor: pointer;
      background: none;
      border: none;
      text-decoration: underline;
      text-underline-offset: 3px;
      transition: color 0.2s ease;
      padding: 0;
    }

    .auth-forgot-link:hover {
      color: var(--silver-accent);
    }

    .glass-input {
      width: 100%;
      height: 46px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      padding: 0 16px;
      font-size: 14px;
      color: #fff;
      outline: none;
      transition: all 0.25s var(--ease-netflix);
      font-family: inherit;
      box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
    }

    .glass-input::placeholder {
      color: var(--text-sub);
      font-size: 13.5px;
    }

    .glass-input:hover {
      background: rgba(255, 255, 255, 0.06);
      border-color: var(--glass-border-hover);
    }

    .glass-input:focus {
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--glass-highlight);
      box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08), inset 0 2px 4px rgba(0, 0, 0, 0.2);
    }

    .glass-input.code-style {
      font-family: 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;
      font-size: 17px;
      font-weight: 800;
      letter-spacing: 3px;
      text-transform: uppercase;
      text-align: center;
      background: rgba(255, 255, 255, 0.05);
      border-color: rgba(255, 255, 255, 0.15);
      color: #7bed9f;
    }

    .glass-input.code-style:focus {
      border-color: #2ed573;
      box-shadow: 0 0 0 3px rgba(46, 213, 115, 0.15);
    }

    .auth-alert-box {
      padding: 12px 16px;
      border-radius: var(--radius-md);
      font-size: 12.5px;
      margin-bottom: 18px;
      display: none;
      line-height: 1.45;
      text-align: left;
      animation: lockscreenFade 0.2s ease;
    }

    .auth-alert-box.error {
      display: block;
      background: rgba(255, 85, 85, 0.12);
      border: 1px solid rgba(255, 85, 85, 0.3);
      color: #ff9e9e;
    }

    .auth-alert-box.success {
      display: block;
      background: rgba(46, 213, 115, 0.12);
      border: 1px solid rgba(46, 213, 115, 0.3);
      color: #7bed9f;
    }