.profile-layout-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
        align-items: stretch;
      }
      .avatar-uplink-container {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1.25rem;
        margin-bottom: 2rem;
        text-align: center;
      }
      .avatar-halo-frame {
        width: 140px;
        height: 140px;
        border-radius: 50%;
        padding: 5px;
        background: linear-gradient(135deg, var(--accent-sugar) 0%, #38BDF8 100%);
        box-shadow: 0 0 25px var(--accent-neon-glow);
        position: relative;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
      }
      .avatar-halo-frame:hover {
        transform: scale(1.05);
        box-shadow: 0 0 35px rgba(236, 72, 153, 0.6);
      }
      .avatar-img-preview {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        object-fit: cover;
        background-color: #1E293B;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 3.5rem;
        user-select: none;
      }
      .avatar-upload-overlay {
        position: absolute;
        inset: 5px;
        border-radius: 50%;
        background: rgba(15, 23, 42, 0.75);
        backdrop-filter: blur(4px);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition: opacity 0.25s ease;
        color: #FFFFFF;
        font-size: 0.8rem;
        font-weight: 700;
        gap: 0.25rem;
      }
      .avatar-halo-frame:hover .avatar-upload-overlay {
        opacity: 1;
      }
      .profile-field-group {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
        margin-bottom: 1.25rem;
      }
      .profile-field-label {
        font-size: 0.88rem;
        font-weight: 700;
        color: #F8FAFC;
        letter-spacing: 0.02em;
        display: flex;
        justify-content: space-between;
      }
      .profile-input-control {
        width: 100%;
        padding: 0.95rem 1.25rem;
        background: rgba(15, 23, 42, 0.85);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: var(--radius-md);
        color: var(--text-main);
        font-family: inherit;
        font-size: 1rem;
        outline: none;
        transition: var(--transition-speed);
      }
      .profile-input-control:focus {
        border-color: var(--accent-sugar);
        box-shadow: 0 0 16px var(--accent-neon-glow);
        background: rgba(15, 23, 42, 0.95);
      }
      .rank-crown-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 1.5rem;
        flex-wrap: wrap;
        gap: 0.5rem;
      }
      .rank-tier-icon {
        font-size: 3.5rem;
        filter: drop-shadow(0 0 16px var(--accent-neon-glow));
      }
      .rank-progress-track {
        width: 100%;
        height: 12px;
        background: rgba(15, 23, 42, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-pill);
        overflow: hidden;
        margin: 1.5rem 0 1rem;
        position: relative;
      }
      .rank-progress-fill {
        height: 100%;
        width: 0%;
        border-radius: var(--radius-pill);
        background: linear-gradient(90deg, #F43F5E 0%, var(--accent-sugar) 60%, #38BDF8 100%);
        box-shadow: 0 0 12px var(--accent-neon-glow);
        transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
      }
      .score-adjuster-bar {
        display: flex;
        align-items: center;
        gap: 1rem;
        margin-top: 1.5rem;
        padding-top: 1.5rem;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
      }
      .backup-utility-card {
        margin-top: 3rem;
        padding: 2.5rem;
        background: rgba(30, 41, 59, 0.6);
        border: 1px solid rgba(56, 189, 248, 0.25);
        border-radius: var(--radius-lg);
      }
      .backup-actions-row {
        display: flex;
        gap: 1.25rem;
        flex-wrap: wrap;
        margin-top: 1.5rem;
      }
      .btn-export-backup {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: rgba(56, 189, 248, 0.15);
        border: 1px solid rgba(56, 189, 248, 0.45);
        color: #38BDF8;
        font-weight: 700;
        font-size: 0.95rem;
        padding: 0.85rem 1.6rem;
        border-radius: var(--radius-pill);
        cursor: pointer;
        transition: var(--transition-speed);
        box-shadow: 0 4px 18px rgba(56, 189, 248, 0.15);
      }
      .btn-export-backup:hover {
        background: #38BDF8;
        color: #0F172A;
        box-shadow: 0 0 25px rgba(56, 189, 248, 0.5);
        transform: translateY(-2px);
      }
      .btn-import-backup {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: rgba(236, 72, 153, 0.15);
        border: 1px solid rgba(236, 72, 153, 0.45);
        color: var(--accent-sugar);
        font-weight: 700;
        font-size: 0.95rem;
        padding: 0.85rem 1.6rem;
        border-radius: var(--radius-pill);
        cursor: pointer;
        transition: var(--transition-speed);
        box-shadow: 0 4px 18px var(--accent-neon-glow);
      }
      .btn-import-backup:hover {
        background: var(--accent-sugar);
        color: #FFFFFF;
        box-shadow: 0 0 25px rgba(236, 72, 153, 0.6);
        transform: translateY(-2px);
      }
      .feedback-toast {
        display: none;
        align-items: center;
        gap: 0.5rem;
        padding: 0.65rem 1.25rem;
        border-radius: var(--radius-pill);
        font-size: 0.88rem;
        font-weight: 700;
        animation: fadeIn 0.3s ease;
      }
      .feedback-toast.success {
        display: inline-flex;
        background: rgba(16, 185, 129, 0.15);
        border: 1px solid rgba(16, 185, 129, 0.4);
        color: var(--accent-green);
        box-shadow: 0 0 15px rgba(16, 185, 129, 0.25);
      }
      @media (max-width: 900px) {
        .profile-layout-grid {
          grid-template-columns: 1fr;
        }
      }