.btn {
      display: flex; align-items: center; justify-content: center;
      gap: 8px; width: 100%; padding: 16px; border: none;
      border-radius: var(--radius-lg);
      font-family: var(--font-heading);
      font-size: var(--text-h3);
      font-weight: var(--weight-bold);
      cursor: pointer; transition: all 0.2s;
      min-height: 56px;
    }
    .btn svg { width: 24px; height: 24px; }
    .btn-primary {
      background: var(--gradient-main);
      color: #FFF;
      box-shadow: 0 4px 16px rgba(212,165,165,0.3);
    }
    .btn-primary:hover {
      box-shadow: 0 8px 24px rgba(212,165,165,0.4);
      transform: translateY(-1px);
    }
    .btn-primary:active { transform: translateY(0); }
    .btn-primary:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }

    /* ─── Toast ─── */