:root{--table-body-font-size: .8rem;--table-header-font-size: .76rem;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--brand-bg: #f3f0ef;--brand-surface: #ffffff;--brand-surface-muted: #ebe7e5;--brand-sidebar: #3a3a3a;--brand-sidebar-hover: #4a4a4a;--brand-text: #3a3a3a;--brand-text-soft: #575756;--brand-text-faint: #747473;--brand-border: #d8d4d2;--brand-border-strong: #bbb6b3;--brand-accent: #00a6b2;--brand-accent-hover: #008c96;--brand-accent-soft: #e1f5f6;--status-warning: #8a5a12;--status-warning-bg: #fff3d8;--status-error: #a8322a;--status-error-bg: #fde9e7;--status-success: #246a46;--status-success-bg: #e5f2eb;--bg-canvas: var(--brand-bg);--bg-panel: var(--brand-surface);--bg-sidebar: var(--brand-sidebar);--bg-sidebar-hover: var(--brand-sidebar-hover);--ink: var(--brand-text);--ink-soft: var(--brand-text-soft);--ink-faint: var(--brand-text-faint);--border: var(--brand-border);--border-strong: var(--brand-border-strong);--accent: var(--brand-accent);--accent-dark: var(--brand-accent-hover);--accent-soft: var(--brand-accent-soft);--moss: var(--brand-accent);--moss-soft: var(--brand-accent-soft);--warn: var(--status-warning);--warn-bg: var(--status-warning-bg);--error: var(--status-error);--error-bg: var(--status-error-bg);--ok: var(--status-success);--ok-bg: var(--status-success-bg);color:var(--brand-text);background:var(--brand-bg);font-family:Helvetica Neue,Arial,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}html,body,#root{max-width:100%;overflow-x:hidden}body{margin:0;min-width:320px}button,input,select{font:inherit}button{min-height:36px;border:1px solid var(--brand-accent);border-radius:4px;padding:7px 10px;color:#fff;background:var(--brand-accent);cursor:pointer}button:hover{border-color:var(--brand-accent-hover);background:var(--brand-accent-hover)}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--brand-accent);outline-offset:2px}input,select{width:100%;min-width:90px;min-height:34px;border:1px solid #c8d0ca;border-radius:4px;padding:6px 8px;color:#14211b;background:#fbfcfb}.app-shell{min-height:100vh;max-width:100%;overflow-x:hidden;display:grid;grid-template-columns:232px minmax(0,1fr) 286px;grid-template-rows:auto auto 1fr;background:var(--bg-canvas)}.topbar{grid-column:1 / -1;grid-row:1;display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding:var(--space-3) 18px;background:var(--bg-panel);color:var(--ink);border-top:4px solid var(--brand-accent);border-bottom:1px solid var(--border)}.topbar h1{margin:0;font-size:1.08rem;line-height:1.1;letter-spacing:0}.topbar p{margin:2px 0 0;color:var(--ink-soft);font-size:.78rem}.topbar-left,.topbar-right{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-3)}.brand-mark{width:22px;height:22px;border-radius:4px;background:var(--accent);position:relative;flex:0 0 auto}.brand-mark:after{content:"";position:absolute;top:6px;right:6px;bottom:6px;left:6px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}.project-placeholder{display:grid;gap:1px;padding:7px 10px;border:1px solid var(--border-strong);border-radius:4px;background:var(--bg-canvas);font-size:.78rem}.project-placeholder span,.project-placeholder small,.timestamp{color:var(--ink-faint);font-size:.72rem}.project-placeholder strong{color:var(--ink)}.hero-meta span,.summary-strip span{border:1px solid color-mix(in srgb,var(--brand-accent) 28%,transparent);border-radius:999px;padding:var(--space-2) var(--space-3);background:var(--brand-surface-muted);color:var(--brand-accent-hover)}.tab-nav{grid-column:1;grid-row:2 / 4;display:grid;align-content:start;gap:var(--space-2);overflow-x:hidden;padding:18px var(--space-3);background:var(--bg-sidebar);border-right:1px solid #101610}.tab-nav button{width:100%;min-height:46px;color:#e7ece2;background:transparent;border-color:transparent;text-align:left;border-radius:4px}.tab-nav button:hover{color:#fff;background:var(--brand-sidebar-hover);border-color:transparent}.tab-nav button.active{color:#fff;background:var(--bg-sidebar-hover);border-color:#3b463a;box-shadow:inset 3px 0 0 var(--accent)}.tab-panel{grid-column:2;grid-row:3;display:flex;flex-direction:column;align-self:start;gap:var(--space-4);width:100%;max-width:1800px;min-width:0;margin:0 auto;padding:var(--space-5)}.result-banner-shell{grid-column:2;grid-row:2;position:sticky;top:0;z-index:10;display:grid;gap:var(--space-2);padding:10px var(--space-5);background:var(--bg-canvas);border-bottom:1px solid var(--border);box-shadow:0 8px 18px #173c3414;max-width:100%;min-width:0}.result-banner{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--space-3);min-width:0}.form-section{border:1px solid var(--border);border-radius:4px;background:var(--bg-panel);padding:var(--space-4);max-width:100%;min-width:0;overflow-wrap:normal}.form-section>:first-child{margin-top:0}.form-section>:last-child{margin-bottom:0}.section-stack{display:flex;flex-direction:column;gap:var(--space-5)}.page-header{display:grid;gap:3px;margin:0;align-self:start}.page-header h2{margin:0;color:var(--ink)}.page-header p{margin:0;color:var(--ink-soft)}.subtabs{display:flex;gap:var(--space-1);overflow-x:auto;border-bottom:1px solid var(--border);align-items:center;min-height:38px}.subtab{min-height:36px;flex:0 0 auto;color:var(--ink-soft);background:transparent;border-color:transparent;border-radius:0;border-bottom:2px solid transparent}.subtab:hover{color:var(--brand-text);background:var(--brand-accent-soft);border-color:transparent;border-bottom-color:var(--brand-accent)}[role=tabpanel]{min-height:0}.selected-row td{background:var(--accent-soft)}.optimization-objective-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3);margin-bottom:var(--space-3)}.optimization-objective-card{display:grid;gap:var(--space-2);min-height:118px;padding:var(--space-4);color:var(--ink-soft);background:var(--bg-panel);border:1px solid var(--border-strong);text-align:left}.optimization-objective-card:hover{color:var(--ink);background:var(--brand-accent-soft);border-color:var(--brand-accent)}.optimization-objective-card.selected{color:var(--ink);background:var(--accent-soft);border-color:var(--accent)}.optimization-objective-card .objective-title{color:var(--ink);font-weight:800;font-size:1rem}.optimization-objective-card.selected .objective-title{color:var(--accent-dark)}.optimization-objective-card strong{justify-self:start;border:1px solid currentColor;border-radius:999px;padding:2px 8px;font-size:.78rem}.current-fleet-table{min-width:1080px}.current-handling-resource-table{min-width:1320px}.subtab.active,.subtab[aria-selected=true]{color:var(--accent-dark);background:var(--accent-soft);border-bottom-color:var(--accent)}.warnings-panel{grid-column:3;grid-row:2 / 4;min-width:0;padding:18px var(--space-3);background:var(--bg-panel);border-left:1px solid var(--border)}.warnings-panel-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2)}.warnings-panel-header h2{margin:0;font-size:.95rem}.warnings-panel-header span{border:1px solid var(--border-strong);border-radius:999px;padding:2px 8px;font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace}.warning-item{display:grid;gap:var(--space-1);margin-top:var(--space-2);border:1px solid var(--border-strong);border-radius:4px;padding:9px 10px;background:var(--bg-canvas);color:var(--ink-soft);font-size:.78rem}.warning-item p{margin:0}.warning-item span{color:var(--ink-faint);font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace}.warning-item.warning{border-color:#e5bd82;background:var(--warn-bg);color:var(--warn)}.warning-item.error{border-color:#e0a39e;background:var(--error-bg);color:var(--error)}.subsection{display:grid;gap:var(--space-3);margin-top:var(--space-4)}.section-title-row,.panel-title-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)}h2,h3{margin:0 0 var(--space-3);letter-spacing:0}h2{font-size:1.2rem}h3{font-size:1rem}.table-wrapper{width:100%;max-width:100%;min-width:0;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch}.compact-table{width:100%;min-width:980px;border-collapse:collapse;font-size:var(--table-body-font-size)}.demand-table{min-width:760px}.logistics-table{min-width:900px}.capability-table,.audit-table{min-width:1540px}.handling-capacity-table{min-width:980px}.cost-table{min-width:820px}.route-table{min-width:1320px}.route-table th,.route-table td{padding:7px 6px}.route-table th:nth-child(8),.route-table td:nth-child(8),.route-table th:nth-child(9),.route-table td:nth-child(9){min-width:92px;white-space:nowrap}.sensitivity-subsection{margin-top:var(--space-5)}.duration-human{display:block;margin-top:2px;color:#657068;font-size:.78rem;white-space:nowrap}.summary-row th,.summary-row td{border-top:2px solid #9aa89d;background:#f3f7f2;font-weight:700}.backhaul-check-section{margin-top:var(--space-5)}.compact-table th,.compact-table td{border-bottom:1px solid #e5e9e4;padding:9px 8px;text-align:left;vertical-align:top;overflow-wrap:normal;word-break:normal;-webkit-hyphens:none;hyphens:none}.compact-table th{color:#4d5a52;font-size:var(--table-header-font-size);font-weight:700}.compact-table td{color:#1e2a23}.results-table{font-size:var(--table-body-font-size)}.results-table th{font-size:var(--table-header-font-size)}.results-table .nowrap{white-space:nowrap}.results-table 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strong{font-size:1.05rem;line-height:1.25;overflow-wrap:break-word;word-break:normal;-webkit-hyphens:auto;hyphens:auto}.secondary-button{color:var(--brand-text);background:#fff;border-color:var(--brand-border-strong)}.secondary-button:hover{color:var(--brand-text);background:var(--brand-accent-soft);border-color:var(--brand-accent)}.button-row,.summary-strip{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-3);max-width:100%;min-width:0}.summary-strip span{max-width:100%;overflow-wrap:break-word;word-break:normal}.checkbox-list{display:grid;gap:6px;min-width:220px}.checkbox-list label{display:flex;align-items:center;gap:6px;white-space:nowrap}.checkbox-list input[type=checkbox]{width:auto;min-width:0;min-height:0}.duration-warning{border:1px solid var(--status-warning);border-radius:4px;padding:10px var(--space-3);background:var(--status-warning-bg);color:var(--status-warning)}.duration-warning ul{margin:8px 0 0;padding-left:18px}.utilization-ok{color:var(--status-success);font-weight:700}.utilization-warning{color:var(--status-warning);font-weight:700}.utilization-critical{color:var(--status-error);font-weight:800}.utilization-info{color:var(--brand-text-soft);font-weight:700}.hidden-file{display:none}.error-list{border:1px solid var(--status-error);border-radius:4px;padding:var(--space-3);background:var(--status-error-bg);color:var(--status-error)}.error-list ul{margin:8px 0 0;padding-left:18px}.muted{color:var(--brand-text-soft)}.network-svg{width:100%;min-height:260px;margin:var(--space-3) 0 var(--space-4);border:1px solid var(--brand-border);border-radius:4px;background:var(--brand-surface-muted)}.network-line{stroke:var(--brand-border-strong);stroke-width:4;stroke-linecap:round;opacity:.72}.network-node{fill:var(--brand-accent-soft);stroke:var(--brand-accent-hover);stroke-width:3}.network-node.worksite{fill:var(--brand-accent)}.network-svg text{fill:var(--brand-text);font-size:13px;paint-order:stroke;stroke:var(--brand-surface-muted);stroke-width:4px;stroke-linejoin:round}.formula-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-3);margin:var(--space-3) 0 var(--space-4)}.quality-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-3)}.quality-grid>div{border:1px solid var(--brand-border);border-radius:4px;padding:var(--space-3);background:var(--brand-surface-muted)}.muted-box{background:var(--brand-surface-muted)}.quality-grid ul{margin:8px 0 0;padding-left:20px}.formula-grid div,.assumption-list{border:1px solid var(--brand-border);border-radius:4px;padding:var(--space-3);background:var(--brand-surface-muted)}.assumption-list{margin:0;padding-left:30px}@media (max-width: 1399px){.app-shell{grid-template-columns:220px minmax(0,1fr)}.warnings-panel{display:none}}@media (max-width: 899px){.app-shell{display:block}.tab-nav{display:flex;overflow-x:auto;border-right:0;border-bottom:1px solid #101610;padding:10px}.tab-nav button{flex:0 0 auto;width:auto;white-space:nowrap;text-align:center}.result-banner-shell{position:static}}@media (max-width: 760px){.topbar{align-items:start;flex-direction:column;padding:22px 16px}.topbar-left,.topbar-right{justify-content:flex-start}.tab-panel{padding:14px}.result-banner{grid-template-columns:repeat(auto-fit,minmax(135px,1fr))}.optimization-objective-grid{grid-template-columns:1fr}.result-banner-shell{position:static;padding:10px 14px}.section-title-row,.panel-title-row{align-items:stretch;grid-template-columns:1fr;flex-direction:column}.form-section{padding:14px}.compact-table{font-size:.86rem}.compact-table th,.compact-table td{padding:7px 6px}}