/* ==========================================================================
   METRO ORDER OPTIMIZATION - MODERN ASP.NET WEB STYLING (VS 2012 / .NET 4.5)
   ========================================================================== */

:root {
    --primary: #0F4C81;
    --primary-light: #2A6F97;
    --primary-dark: #012A4A;
    --accent: #2E7D32;
    --accent-light: #4CAF50;
    --accent-gold: #D97706;
    --bg: #F4F6F9;
    --surface: #FFFFFF;
    --surface-alt: #F8FAFC;
    --border: #E2E8F0;
    --border-dark: #CBD5E1;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --danger: #EF4444;
    --success: #10B981;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.5;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

/* Header Navbar */
.app-header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: white;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
}

.header-brand h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-brand p {
    font-size: 12px;
    color: #CBD5E1;
    margin-top: 2px;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* Main Container */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 20px;
}

/* Layout Grid */
.main-grid {
    display: grid;
    grid-template-columns: 440px 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 1100px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

/* Card Container */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    padding: 12px 16px;
    background: var(--surface-alt);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: 6px;
}

.card-body {
    padding: 16px;
}

/* Shaft Selector Area */
.shaft-selection-box {
    background: #EFF6FF;
    border: 1px solid #BFDBFE;
    border-radius: var(--radius);
    padding: 12px 14px;
    margin-bottom: 16px;
}

.shaft-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}

.shaft-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: white;
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid #93C5FD;
    font-weight: 600;
    cursor: pointer;
}

.shaft-item input[type="checkbox"] {
    accent-color: var(--primary);
    cursor: pointer;
    width: 16px;
    height: 16px;
}

.add-shaft-bar {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.add-shaft-bar input {
    width: 140px;
    padding: 6px 10px;
    border: 1px solid var(--border-dark);
    border-radius: 4px;
    font-size: 13px;
}

/* Orders Input Table */
.order-table-wrapper {
    overflow-x: auto;
    margin-bottom: 12px;
    max-height: 400px;
    border: 1px solid var(--border);
    border-radius: 6px;
}

.order-input-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.order-input-table th {
    background: #F1F5F9;
    color: var(--text-secondary);
    font-weight: 700;
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border-dark);
    position: sticky;
    top: 0;
    z-index: 10;
}

.order-input-table td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
}

.order-input-table input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 13px;
    transition: border-color 0.15s ease;
}

.order-input-table input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(15, 76, 129, 0.15);
}

.order-input-table .col-target-wt {
    background: #F8FAFC;
    font-weight: 700;
    color: var(--primary);
    text-align: right;
    padding-right: 12px;
}

.btn-remove-row {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 4px;
}

.btn-remove-row:hover {
    background: #FEE2E2;
}

/* Action Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover {
    background: var(--primary-light);
}

.btn-accent {
    background: var(--accent);
    color: white;
}
.btn-accent:hover {
    background: #27672A;
}

.btn-success {
    background: var(--accent-gold);
    color: white;
}
.btn-success:hover {
    background: #B45309;
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border-color: var(--border-dark);
}
.btn-secondary:hover {
    background: var(--surface-alt);
}

.btn-calculate {
    width: 100%;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 700;
    background: linear-gradient(135deg, #0F4C81, #1E3A8A);
    color: white;
    box-shadow: 0 4px 12px rgba(15, 76, 129, 0.3);
    margin-top: 10px;
}
.btn-calculate:hover {
    background: linear-gradient(135deg, #1E3A8A, #0F4C81);
    transform: translateY(-1px);
}

/* 5 Top KPI Cards */
.metrics-banner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.metric-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
}

.metric-card.card-net::before { background: #0284C7; }
.metric-card.card-waste::before { background: #EF4444; }
.metric-card.card-waste-roll::before { background: #F59E0B; }
.metric-card.card-gross::before { background: #6366F1; }
.metric-card.card-eff::before { background: #10B981; }

.metric-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.metric-value {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary-dark);
    margin: 4px 0;
}

.metric-sub {
    font-size: 11px;
    color: var(--text-muted);
}

/* Solution Selector Header */
.solution-selector-bar {
    background: #F8FAFC;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.solution-dropdown-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.solution-dropdown-wrapper select {
    flex: 1;
    max-width: 600px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    background: white;
    color: var(--primary-dark);
}

/* Results Tabs */
.tabs-header {
    display: flex;
    gap: 4px;
    border-bottom: 2px solid var(--border);
    margin-bottom: 16px;
    overflow-x: auto;
}

.tab-btn {
    padding: 10px 18px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--primary);
    background: #F1F5F9;
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Data Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    background: white;
}

.data-table th {
    background: #F1F5F9;
    color: var(--primary-dark);
    font-weight: 700;
    text-align: left;
    padding: 10px 12px;
    border-top: 1px solid var(--border);
    border-bottom: 2px solid var(--border-dark);
}

.data-table td {
    padding: 9px 12px;
    border-bottom: 1px solid var(--border);
}

.data-table tbody tr:hover {
    background-color: #F8FAFC;
}

.data-table tbody tr:nth-child(even) {
    background-color: #FAFAFA;
}

.data-table tfoot td {
    background: #E2E8F0;
    font-weight: 800;
    color: var(--primary-dark);
    border-top: 2px solid var(--border-dark);
    padding: 10px 12px;
}

.lane-combo-badge {
    font-family: Consolas, monospace;
    font-weight: 700;
    color: #0F4C81;
    background: #EFF6FF;
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid #BFDBFE;
    display: inline-block;
}

.badge-recommended {
    background: #DCFCE7;
    color: #166534;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 11px;
    border: 1px solid #86EFAC;
}

.text-right { text-align: right; }
.text-center { text-align: center; }

/* Print Authorization Box on Screen & Print */
.signature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 25px;
    padding-top: 15px;
}

.signature-box {
    border: 1px solid var(--border-dark);
    border-radius: 6px;
    padding: 12px;
    background: var(--surface-alt);
    min-height: 75px;
}

.signature-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 24px;
}

.signature-line {
    font-size: 12px;
    color: var(--text-primary);
    border-top: 1px dashed var(--border-dark);
    padding-top: 4px;
}

/* ==========================================================================
   PRINT STYLES - STRICTLY A4 LANDSCAPE OPTIMIZED
   ========================================================================== */

@page {
    size: A4 landscape;
    margin: 8mm 10mm;
}

@media print {
    body {
        background: white !important;
        color: black !important;
        font-size: 11px !important;
    }

    .no-print, 
    .app-header, 
    .card-header, 
    .solution-selector-bar, 
    .tabs-header, 
    .order-input-section,
    .btn, 
    button {
        display: none !important;
    }

    .container {
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    .main-grid {
        display: block !important;
    }

    .card {
        border: none !important;
        box-shadow: none !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .tab-content {
        display: block !important;
    }

    .print-page-break {
        page-break-after: always;
        break-after: page;
    }

    .print-header {
        display: block !important;
        border-bottom: 2px solid #0F4C81;
        padding-bottom: 6px;
        margin-bottom: 10px;
    }

    .print-header h2 {
        font-size: 16px;
        font-weight: bold;
        color: #0F4C81;
    }

    .print-header p {
        font-size: 10px;
        color: #475569;
    }

    .data-table {
        font-size: 10.5px !important;
        width: 100% !important;
        border: 1px solid #CBD5E1 !important;
    }

    .data-table th, 
    .data-table td {
        padding: 4px 6px !important;
        border: 1px solid #CBD5E1 !important;
    }

    .data-table th {
        background-color: #F1F5F9 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .lane-combo-badge {
        background: none !important;
        border: none !important;
        padding: 0 !important;
        color: black !important;
        font-weight: bold !important;
    }

    .signature-grid {
        margin-top: 15px !important;
    }

    .signature-box {
        border: 1px solid #64748B !important;
        background: white !important;
    }
}