.tool-label {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        color: var(--text-light);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: 12px;
    }
    .tool-input {
        padding: 12px 16px;
        border: 1px solid var(--border-light);
        border-radius: 8px;
        font-size: 14px;
        background: var(--bg-light);
        color: var(--text-dark);
        transition: border-color 0.2s;
    }
    .tool-input:focus {
        outline: none;
        border-color: var(--primary-light);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }
    .btn-tool {
        padding: 10px 18px;
        border: none;
        background: #3b82f6;
        color: white;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s;
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }
    .btn-tool:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3); }
    .tier-row {
        margin-bottom: 12px;
        padding: 16px;
        background: var(--bg-light);
        border-radius: 8px;
    }
    .btn-remove-tier {
        width: 36px;
        height: 36px;
        border: 1px solid var(--border-light);
        background: var(--bg-white);
        border-radius: 6px;
        color: #dc2626;
        cursor: pointer;
        transition: all 0.2s;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .btn-remove-tier:hover { background: #fee2e2; border-color: #dc2626; }
    .result-card {
        background: #dbeafe;
    }
    .result-main {
        text-align: center;
        margin-bottom: 24px;
    }
    .result-label {
        font-size: 14px;
        color: var(--text-medium);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: 8px;
    }
    .result-amount {
        font-size: 48px;
        font-weight: 700;
        color: var(--primary);
        font-family: 'SF Mono', monospace;
    }
    .result-breakdown {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding-top: 24px;
        border-top: 2px solid rgba(255,255,255,0.5);
    }
    .breakdown-item {
        text-align: center;
    }
    .breakdown-label {
        font-size: 12px;
        color: var(--text-medium);
        margin-bottom: 4px;
    }
    .breakdown-value {
        font-size: 20px;
        font-weight: 600;
        color: var(--text-dark);
    }
    .tier-detail {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 12px 16px;
        background: var(--bg-light);
        border-radius: 6px;
        margin-bottom: 8px;
    }
    .tier-detail-label {
        font-size: 14px;
        color: var(--text-medium);
    }
    .tier-detail-value {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-dark);
    }
    @media (max-width: 768px) {
        .tier-grid { grid-template-columns: 1fr !important; }
        .bonus-grid { grid-template-columns: 1fr !important; }
        .result-amount { font-size: 36px; }
        .result-breakdown { grid-template-columns: 1fr; }
    }