/* ==========================================================================
   K&G Sales Cost & Margin Simulator - High-Density Single-Column Stylesheet
   규격: 위에서 아래로 순차 진행되는 직관적 워크플로우 (1열 탑다운 레이아웃)
         매입 시나리오 1..3 × 판매 시나리오 1..3 경우의 수 교차 분석 매트릭스
   ========================================================================== */

:root {
    --erp-primary: #2563eb;
    --erp-primary-hover: #1d4ed8;
    --erp-primary-light: #eff6ff;
    --erp-primary-border: #bfdbfe;
    
    --erp-success: #10b981;
    --erp-success-bg: #ecfdf5;
    --erp-success-border: #a7f3d0;
    
    --erp-warning: #f59e0b;
    --erp-warning-bg: #fffbeb;
    --erp-warning-border: #fde68a;
    
    --erp-danger: #ef4444;
    --erp-danger-bg: #fef2f2;
    --erp-danger-border: #fecaca;

    --erp-purple: #8b5cf6;
    --erp-purple-bg: #f5f3ff;
    
    --erp-dark: #1e293b;
    --erp-th-bg: #f8fafc;
    --erp-border: #cbd5e1;
    --erp-border-light: #e2e8f0;
    --erp-text: #1e293b;
    --erp-text-muted: #64748b;
    --erp-bg: #f1f5f9;
    --erp-panel-bg: #ffffff;
    
    --erp-row-hover: #f8fafc;
    --erp-font-size: 12px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--erp-bg);
    color: var(--erp-text);
    margin: 0;
    padding: 8px 12px 24px;
    font-size: var(--erp-font-size);
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
}

/* ─────────────────────────────────────────────────────────────
   1. 상단 액션 툴바 (.erp-top-toolbar)
   ───────────────────────────────────────────────────────────── */
.erp-top-toolbar {
    background: #ffffff;
    border: 1px solid var(--erp-border);
    border-radius: 4px;
    padding: 6px 12px;
    min-height: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 10px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.erp-toolbar-left,
.erp-toolbar-right {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.erp-title-tag {
    font-size: 14px;
    font-weight: 800;
    color: #0f172a;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding-right: 12px;
    border-right: 1px solid var(--erp-border-light);
    letter-spacing: -0.3px;
}

.erp-title-tag i {
    font-size: 18px;
    color: var(--erp-primary);
}

.erp-toolbar-divider {
    width: 1px;
    height: 16px;
    background: var(--erp-border-light);
    margin: 0 3px;
    display: inline-block;
}

/* 버튼 컴포넌트 */
.btn-erp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    height: 27px;
    padding: 0 10px;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--erp-text);
    background: #ffffff;
    border: 1px solid var(--erp-border);
    border-radius: 3px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.12s ease;
    user-select: none;
}

.btn-erp:hover {
    background: var(--erp-row-hover);
    border-color: #94a3b8;
    color: #0f172a;
}

.btn-erp.btn-primary {
    background: var(--erp-primary);
    border-color: var(--erp-primary);
    color: #ffffff;
}
.btn-erp.btn-primary:hover {
    background: var(--erp-primary-hover);
    border-color: var(--erp-primary-hover);
}

.btn-erp.btn-secondary {
    background: #f8fafc;
    border-color: var(--erp-border);
    color: #334155;
}
.btn-erp.btn-secondary:hover {
    background: #e2e8f0;
}

.btn-erp.btn-sm {
    height: 22px;
    padding: 0 6px;
    font-size: 11px;
}

/* ─────────────────────────────────────────────────────────────
   2. 위에서 아래로 내려가는 1열 메인 워크플로우 (.sim-flow-container)
   ───────────────────────────────────────────────────────────── */
.sim-flow-container {
    max-width: 1360px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 스텝 패널 */
.step-panel {
    background: #ffffff;
    border: 1px solid var(--erp-border);
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
    overflow: hidden;
}

.step-panel-header {
    background: var(--erp-th-bg);
    border-bottom: 1px solid var(--erp-border);
    padding: 8px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--erp-primary);
    color: #ffffff;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 800;
    margin-right: 6px;
}

.step-panel-title {
    font-size: 13px;
    font-weight: 800;
    color: #0f172a;
    display: inline-flex;
    align-items: center;
}

.step-panel-subtitle {
    font-size: 11px;
    color: var(--erp-text-muted);
    font-weight: 400;
    margin-left: 8px;
}

.step-panel-body {
    padding: 12px 14px;
}

/* ─────────────────────────────────────────────────────────────
   3. 테이블 및 인풋 규격
   ───────────────────────────────────────────────────────────── */
.erp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11.5px;
}

.erp-table th,
.erp-table td {
    border: 1px solid var(--erp-border-light);
    padding: 5px 8px;
    height: 29px;
    vertical-align: middle;
}

.erp-table th {
    background: var(--erp-th-bg);
    color: #475569;
    font-weight: 700;
    text-align: center;
    white-space: nowrap;
}

.erp-table tfoot td {
    background: #f8fafc;
    font-weight: 800;
    border-top: 1.5px solid var(--erp-border);
}

.erp-input {
    width: 100%;
    height: 25px;
    padding: 2px 7px;
    font-size: 11.5px;
    font-family: inherit;
    color: var(--erp-text);
    background: #ffffff;
    border: 1px solid var(--erp-border);
    border-radius: 3px;
    outline: none;
    transition: border-color 0.15s ease;
}

.erp-input:focus {
    border-color: var(--erp-primary);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.erp-input.text-right { text-align: right; font-variant-numeric: tabular-nums; }
.erp-input.text-center { text-align: center; }

/* ─────────────────────────────────────────────────────────────
   4. 매입 시나리오 1, 2, 3 설정 카드 그리드
   ───────────────────────────────────────────────────────────── */
.sc-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (max-width: 900px) {
    .sc-card-grid { grid-template-columns: 1fr; }
}

.sc-card {
    background: #ffffff;
    border: 1px solid var(--erp-border);
    border-radius: 4px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.15s ease;
}

.sc-card:hover {
    border-color: #94a3b8;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.04);
}

.sc-card-header {
    border-bottom: 1px solid var(--erp-border-light);
    padding-bottom: 6px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.sc-tag {
    font-size: 10px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 3px;
    color: #ffffff;
    white-space: nowrap;
}

.tag-sc1 { background: #10b981; }
.tag-sc2 { background: #2563eb; }
.tag-sc3 { background: #8b5cf6; }

.sc-cost-checklist {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 11px;
    min-height: 110px;
}

.sc-check-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 3px 6px;
    border-radius: 3px;
    background: #f8fafc;
    cursor: pointer;
    user-select: none;
}

.sc-check-item:hover {
    background: #f1f5f9;
}

.sc-check-item input[type="checkbox"] {
    margin-right: 6px;
    cursor: pointer;
}

.sc-check-amt {
    font-size: 10.5px;
    color: var(--erp-text-muted);
    font-variant-numeric: tabular-nums;
}

.sc-card-footer {
    border-top: 1.5px solid var(--erp-border);
    padding-top: 8px;
    margin-top: 8px;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.sc-unit-cost-label {
    font-size: 10.5px;
    color: var(--erp-text-muted);
    font-weight: 600;
}

.sc-unit-cost-val {
    font-size: 18px;
    font-weight: 900;
    color: #0f172a;
    font-variant-numeric: tabular-nums;
}

/* ─────────────────────────────────────────────────────────────
   5. 판매가 시나리오 1, 2, 3 설정 카드 그리드
   ───────────────────────────────────────────────────────────── */
.sales-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (max-width: 900px) {
    .sales-card-grid { grid-template-columns: 1fr; }
}

.sales-card {
    background: #ffffff;
    border: 1px solid var(--erp-border);
    border-radius: 4px;
    padding: 10px 12px;
}

.sales-tag {
    font-size: 10px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 3px;
    color: #ffffff;
    white-space: nowrap;
}

.tag-sales1 { background: #0284c7; }
.tag-sales2 { background: #0f766e; }
.tag-sales3 { background: #c026d3; }

.sales-quick-btns {
    display: flex;
    gap: 3px;
    margin-top: 6px;
}

/* ─────────────────────────────────────────────────────────────
   6. [핵심] 매입 × 판매 시나리오 경우의 수 교차 매트릭스 (3×3)
   ───────────────────────────────────────────────────────────── */
.matrix-container {
    overflow-x: auto;
}

.matrix-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 6px;
    font-size: 12px;
}

.matrix-table th {
    background: #0f172a;
    color: #ffffff;
    padding: 8px 10px;
    border-radius: 3px;
    text-align: center;
    font-weight: 700;
}

.matrix-cost-th {
    background: #1e293b !important;
    text-align: left !important;
    padding: 8px 12px !important;
    width: 22%;
}

.matrix-cell {
    background: #ffffff;
    border: 1.5px solid var(--erp-border);
    border-radius: 4px;
    padding: 10px 12px;
    cursor: pointer;
    transition: all 0.15s ease;
    vertical-align: top;
    position: relative;
}

.matrix-cell:hover {
    border-color: var(--erp-primary);
    box-shadow: 0 3px 8px rgba(37, 99, 235, 0.15);
    transform: translateY(-1px);
}

.matrix-cell.selected {
    border-color: var(--erp-primary);
    background: #f0f7ff;
    box-shadow: 0 0 0 2px var(--erp-primary);
}

.matrix-cell-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 1px 6px;
    border-radius: 2px;
    font-size: 10px;
    font-weight: 800;
}

.matrix-badge, .matrix-cell-badge {
    display: inline-block;
    padding: 2px 7px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 800;
}

.badge-healthy { background: #dcfce7; color: #15803d; border: 1px solid #bbf7d0; }
.badge-warning { background: #fef9c3; color: #a16207; border: 1px solid #fef08a; }
.badge-danger { background: #fee2e2; color: #b91c1c; border: 1px solid #fecaca; }

.matrix-cell-margin, .matrix-margin-amount {
    font-size: 17px;
    font-weight: 900;
    margin: 4px 0 2px 0;
    letter-spacing: -0.3px;
    font-variant-numeric: tabular-nums;
}

.matrix-cell-profit {
    font-size: 11.5px;
    color: #334155;
    margin-top: 2px;
}

.sc-cost-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 6px;
    border-radius: 3px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    font-size: 11px;
    cursor: pointer;
    user-select: none;
    transition: all 0.1s ease;
}

.sc-cost-checkbox:hover {
    border-color: #cbd5e1;
    background: #f8fafc;
}

.sc-cost-checkbox input[type="checkbox"] {
    margin: 0;
    cursor: pointer;
}

.sc-card.active, .sales-card.active {
    border-color: var(--erp-primary);
    box-shadow: 0 0 0 1.5px var(--erp-primary);
}

.matrix-sub-info {
    font-size: 10.5px;
    color: var(--erp-text-muted);
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px dashed var(--erp-border-light);
    display: flex;
    justify-content: space-between;
}

/* ─────────────────────────────────────────────────────────────
   7. 선택 조합 심층 분석 (워터폴 + BEP)
   ───────────────────────────────────────────────────────────── */
.detail-grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 12px;
}

@media (max-width: 960px) {
    .detail-grid { grid-template-columns: 1fr; }
}

.bep-metric-box {
    background: #f8fafc;
    border: 1px solid var(--erp-border-light);
    border-radius: 4px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    justify-content: space-between;
}

.bep-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 11.5px;
    padding: 3px 0;
    border-bottom: 1px dashed var(--erp-border-light);
}

.bep-row:last-child {
    border-bottom: none;
}

/* ─────────────────────────────────────────────────────────────
   8. 부대비용 마스터 인라인 편집기 & 공통 유틸리티
   ───────────────────────────────────────────────────────────── */
.text-right { text-align: right !important; font-variant-numeric: tabular-nums; }
.text-center { text-align: center !important; }
.text-left { text-align: left !important; }

.erp-textarea {
    width: 100%;
    padding: 8px 10px;
    font-size: 12px;
    font-family: inherit;
    line-height: 1.55;
    color: var(--erp-text);
    background: #ffffff;
    border: 1px solid var(--erp-border);
    border-radius: 4px;
    resize: vertical;
    outline: none;
    transition: border-color 0.15s ease;
}

.erp-textarea:focus {
    border-color: var(--erp-primary);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.cost-pool-editor-wrap {
    margin-bottom: 12px;
    border: 1px solid var(--erp-border);
    border-radius: 4px;
    background: #ffffff;
    overflow: hidden;
}

.cost-pool-editor-wrap.collapsed {
    display: none;
}

.cost-pool-header-bar {
    background: #f1f5f9;
    padding: 6px 10px;
    border-bottom: 1px solid var(--erp-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11.5px;
    color: #1e293b;
}

.sc-price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 8px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 3px;
    font-size: 11.5px;
}

/* ─────────────────────────────────────────────────────────────
   9. 보관함 모달 (.modal-overlay)
   ───────────────────────────────────────────────────────────── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(2px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: #ffffff;
    border: 1px solid var(--erp-border);
    border-radius: 6px;
    width: 100%;
    max-width: 680px;
    max-height: 82vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.modal-header {
    background: var(--erp-th-bg);
    border-bottom: 1px solid var(--erp-border);
    padding: 10px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 13.5px;
    font-weight: 800;
    color: #0f172a;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.modal-title i {
    color: var(--erp-primary);
    font-size: 16px;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 20px;
    line-height: 1;
    color: #64748b;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 3px;
}

.modal-close:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.modal-body {
    padding: 12px 14px;
    overflow-y: auto;
}

/* ─────────────────────────────────────────────────────────────
   10. 인쇄 전용 스타일 (@media print)
   ───────────────────────────────────────────────────────────── */
@media print {
    @page {
        size: A4 portrait;
        margin: 10mm 12mm !important;
    }

    body {
        background: #ffffff !important;
        padding: 0 !important;
        font-size: 9.5pt !important;
    }

    .erp-top-toolbar,
    .btn-erp,
    .sales-quick-btns,
    .no-print,
    .modal-overlay {
        display: none !important;
    }

    .print-only-header {
        display: block !important;
        border-bottom: 2px solid #0f172a;
        padding-bottom: 6px;
        margin-bottom: 10px;
    }

    .print-report-title {
        font-size: 16pt;
        font-weight: 800;
        margin: 0 0 4px 0;
        color: #0f172a;
    }

    .print-meta-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        font-size: 8.5pt;
        color: #475569;
    }

    .step-panel {
        border: 1px solid #cbd5e1 !important;
        margin-bottom: 8px !important;
        page-break-inside: avoid !important;
        box-shadow: none !important;
    }

    .matrix-cell {
        box-shadow: none !important;
        border: 1px solid #cbd5e1 !important;
    }

    .erp-textarea {
        border: 1px solid #cbd5e1 !important;
        font-size: 9pt !important;
        height: auto !important;
    }
}