.scale-toggle {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }
    .scale-toggle-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--color-text-secondary);
    }
    .scale-btns {
      display: flex;
      gap: 4px;
      background: var(--color-bg);
      border: 1px solid var(--color-border);
      border-radius: 6px;
      padding: 3px;
    }
    .scale-btn {
      padding: 7px 16px;
      border: none;
      border-radius: 4px;
      background: transparent;
      font-family: var(--font-body);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--color-text-muted);
      cursor: pointer;
      transition: all 150ms ease;
    }
    .scale-btn.active {
      background: var(--color-surface);
      color: var(--color-primary);
      box-shadow: var(--shadow-sm);
    }
    .scale-btn:hover:not(.active) {
      color: var(--color-text);
    }

    .courses-wrapper { overflow-x: auto; margin-bottom: 20px; }

    .courses-table {
      width: 100%;
      border-collapse: collapse;
    }
    .courses-table th {
      padding: 10px 12px;
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-muted);
      text-align: left;
      border-bottom: 2px solid var(--color-border);
      white-space: nowrap;
    }
    .courses-table th:last-child { width: 48px; text-align: center; }
    .courses-table td {
      padding: 8px 6px;
      vertical-align: middle;
    }
    .courses-table td:first-child { padding-left: 12px; }
    .courses-table tr { border-bottom: 1px solid var(--color-border-light); }
    .courses-table tr:hover { background: var(--color-bg); }

    .c-name {
      width: 100%;
      min-width: 140px;
      padding: 9px 12px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: 0.88rem;
      color: var(--color-text);
      background: var(--color-surface);
      outline: none;
    }
    .c-name:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); }
    .c-name::placeholder { color: var(--color-text-muted); }

    .c-credits {
      width: 80px;
      padding: 9px 12px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-mono);
      font-size: 0.88rem;
      color: var(--color-text);
      background: var(--color-surface);
      outline: none;
      text-align: center;
    }
    .c-credits:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); }

    .c-grade {
      width: 110px;
      padding: 9px 12px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-body);
      font-size: 0.88rem;
      font-weight: 500;
      color: var(--color-text);
      background: var(--color-surface);
      cursor: pointer;
      outline: none;
    }
    .c-grade:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); }

    .c-remove {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      border: none;
      border-radius: var(--radius-sm);
      background: transparent;
      color: var(--color-text-muted);
      cursor: pointer;
      transition: all 150ms ease;
      margin: 0 auto;
    }
    .c-remove:hover { background: #fef2f2; color: #ef4444; }

    .action-row {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 28px;
    }

    .cum-section {
      padding: 20px 24px;
      background: var(--color-bg);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      margin-bottom: 28px;
    }
    .cum-section h3 {
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 4px;
      color: var(--color-text);
    }
    .cum-desc {
      font-size: 0.82rem;
      color: var(--color-text-muted);
      margin-bottom: 16px;
    }
    .cum-fields { display: flex; gap: 16px; flex-wrap: wrap; }
    .cum-field { display: flex; flex-direction: column; gap: 6px; }
    .cum-field label {
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-muted);
    }
    .cum-field input {
      width: 150px;
      padding: 9px 12px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-family: var(--font-mono);
      font-size: 0.88rem;
      color: var(--color-text);
      background: var(--color-surface);
      outline: none;
    }
    .cum-field input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); }

    .results-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 8px;
    }
    .res-card {
      padding: 20px 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      background: var(--color-surface);
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .res-card.primary {
      background: var(--color-primary-light);
      border-color: var(--color-primary-subtle);
    }
    .res-label {
      font-size: 0.72rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--color-text-muted);
    }
    .res-card.primary .res-label { color: var(--color-primary); }
    .res-value {
      font-family: var(--font-mono);
      font-size: 2rem;
      font-weight: 700;
      color: var(--color-text);
      line-height: 1.1;
    }
    .res-card.primary .res-value { color: var(--color-primary); font-size: 2.4rem; }
    .res-sub { font-size: 0.8rem; color: var(--color-text-muted); }
    .res-card.small .res-value { font-size: 1.4rem; }

    .gpa-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      border-radius: 100px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-top: 4px;
    }
    .gpa-badge.deans { background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0; }
    .gpa-badge.good { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
    .gpa-badge.warn { background: #fef2f2; color: #ef4444; border: 1px solid #fecaca; }
    .gpa-badge.empty { background: var(--color-bg); color: var(--color-text-muted); border: 1px solid var(--color-border); }

    .toast-msg {
      position: fixed;
      bottom: 24px;
      right: 24px;
      padding: 12px 20px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 600;
      color: white;
      background: var(--color-text);
      box-shadow: var(--shadow-lg);
      z-index: 999;
      opacity: 0;
      transform: translateY(12px);
      transition: all 250ms ease;
      pointer-events: none;
    }
    .toast-msg.show { opacity: 1; transform: translateY(0); }

    @media (max-width: 768px) {
      .results-grid { grid-template-columns: 1fr; }
      .res-card.primary .res-value { font-size: 2rem; }
      .cum-fields { flex-direction: column; }
      .cum-field input { width: 100%; }
      .c-name { min-width: 100px; }
      .c-credits { width: 65px; }
      .c-grade { width: 90px; }
    }
    @media (max-width: 480px) {
      .action-row { flex-direction: column; }
      .action-row .btn { width: 100%; }
    }