.engineering-drawing-workspace{display:grid;grid-template-columns:minmax(220px,280px) minmax(0,1fr) minmax(230px,300px);min-height:100%;background:#eef1f4;color:#16202a}.engineering-drawing-sidebar,.engineering-drawing-inspector{display:flex;flex-direction:column;gap:10px;padding:12px;background:#f7f9fb;border-right:1px solid #cfd7df;overflow:auto}.engineering-drawing-inspector{border-right:0;border-left:1px solid #cfd7df}.drawing-panel-header{display:flex;align-items:center;justify-content:space-between;gap:8px}.drawing-panel-header h2{margin:0;font-size:15px;font-weight:700}.drawing-field{display:grid;gap:4px;font-size:12px;font-weight:650}.drawing-field input,.drawing-field select{min-height:30px;border:1px solid #b8c3ce;border-radius:4px;padding:4px 7px;background:#fff;color:#16202a;font:inherit}.drawing-source-list{display:grid;gap:4px}.drawing-source-row{display:grid;grid-template-columns:18px minmax(0,1fr);gap:6px;align-items:center;padding:4px 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#d6dde5;border-radius:4px;background:#fff;color:#425466;font-size:12px}@media(max-width:980px){.engineering-drawing-workspace{grid-template-columns:1fr}.engineering-drawing-sidebar,.engineering-drawing-inspector{border:0;border-bottom:1px solid #cfd7df}}.alignment-builder-shell{display:flex;flex-direction:column;gap:10px;min-height:0;height:100%;padding:10px;background:var(--bg);color:var(--text2);overflow:hidden}.builder-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border:1px solid var(--b1);background:var(--chrome);flex-wrap:wrap}.builder-heading h2{margin:0;color:var(--texthi);font-size:13px;font-family:Rajdhani,sans-serif;letter-spacing:.06em;text-transform:uppercase}.builder-heading p{margin:4px 0 0;color:var(--text3);font-size:11px}.alignment-preview-banner{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;border:1px solid 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-1;display:grid;grid-template-columns:132px repeat(2,minmax(160px,1fr));align-items:end;gap:8px 10px;padding:8px;border:1px solid var(--b1);background:var(--chrome2)}.alignment-coordinate-row-title{color:var(--cyan);font-family:Rajdhani,sans-serif;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.alignment-settings-grid label{display:flex;flex-direction:column;gap:4px;font-size:11px;color:var(--text3)}.alignment-settings-grid input,.alignment-settings-grid select,.alignment-cad-fields input,.alignment-cad-fields select,.alignment-pi-table input,.alignment-pi-table select{width:100%;min-width:0;height:24px;padding:0 6px;background:var(--chrome3);border:1px solid var(--b1);color:var(--text2);border-radius:3px}.alignment-settings-grid input:focus,.alignment-settings-grid select:focus,.alignment-cad-fields input:focus,.alignment-cad-fields select:focus,.alignment-pi-table input:focus,.alignment-pi-table 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8px;color:var(--text3);font-size:11px;text-align:center}.alignment-table-section,.alignment-validation-section{min-height:0}.alignment-table-section{flex:1}.alignment-section-header-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%}.builder-header-actions{margin-left:auto}.alignment-table-wrap{padding:0 10px 10px;overflow:auto;min-height:0;max-height:280px}.alignment-pi-table{width:100%;min-width:1260px;border-collapse:collapse;table-layout:fixed;font-size:11px}.alignment-pi-table th,.alignment-pi-table td{height:30px;padding:3px 5px;border:1px solid var(--b1);vertical-align:middle;background:var(--chrome2)}.alignment-pi-table input,.alignment-pi-table select{height:22px;font-size:10.5px}.alignment-pi-table td{white-space:nowrap}.alignment-pi-table th{position:sticky;top:0;z-index:1;background:var(--title);color:var(--text3);font-size:10px;letter-spacing:.06em;text-transform:uppercase}.alignment-pi-table tbody tr:nth-child(2n) td{background:color-mix(in srgb,var(--chrome2) 82%,var(--chrome3) 18%)}.alignment-pi-table tbody tr:hover td{background:color-mix(in srgb,var(--chrome2) 74%,var(--acc) 10%)}.alignment-pi-table tbody tr.selected td{background:color-mix(in srgb,var(--chrome2) 65%,var(--acc) 18%);color:var(--texthi)}.alignment-pi-table td:nth-child(1){width:42px;text-align:center}.alignment-pi-table td:nth-child(9),.alignment-pi-table td:nth-child(10),.alignment-pi-table td:nth-child(11),.alignment-pi-table td:nth-child(12),.alignment-pi-table td:nth-child(13),.alignment-pi-table td:nth-child(14){color:var(--texthi);font-variant-numeric:tabular-nums}.alignment-pi-table td:last-child{color:var(--text3)}.alignment-empty,.alignment-validation-empty{padding:16px;color:var(--text3);text-align:center}.alignment-validation-list{list-style:none;margin:0;padding:10px;display:grid;gap:6px;max-height:140px;overflow:auto}.alignment-validation-list li{display:grid;grid-template-columns:76px 1fr;gap:8px;align-items:start;padding:8px 10px;border:1px solid var(--b1);background:var(--chrome2);font-size:11px}.alignment-validation-list li.warning strong{color:#d9a441}.alignment-validation-list li.fatal{border-color:#c85d5d8c}.alignment-validation-list li.fatal strong{color:#ff8f8f}.alignment-validation-list li span{color:var(--text2)}.tin-generation-section{flex:0 0 auto}.tin-generation-body{display:flex;flex-direction:column;gap:10px;padding:10px}.tin-field{display:flex;flex-direction:column;gap:4px;font-size:11px;color:var(--text3)}.tin-field select{width:100%;min-width:0;height:24px;padding:0 6px;background:var(--chrome3);border:1px solid var(--b1);color:var(--text2);border-radius:3px}.tin-summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.tin-summary-box{display:flex;flex-direction:column;gap:3px;padding:8px 10px;border:1px solid var(--b1);background:var(--chrome2)}.tin-summary-box span{font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:.06em}.tin-summary-box strong{color:var(--texthi);font-size:14px}.tin-summary-note{font-size:11px;color:var(--text3)}.tin-actions{margin-left:0}.alignment-editor-tabbar{display:inline-flex;align-items:center;gap:2px;border:1px solid var(--b1);background:var(--chrome2);padding:2px}.alignment-editor-tabbar button{min-width:88px;height:28px;border:0;background:transparent;color:var(--text2);font:inherit;font-size:12px;cursor:pointer}.alignment-editor-tabbar button.active{background:var(--acc);color:#fff}.vertical-alignment-panel{min-height:0;flex:1}.vertical-locked{padding:14px;color:var(--text2)}.vertical-locked strong{color:var(--texthi)}.vertical-locked p{margin:6px 0 0;color:var(--text3);font-size:12px}.vertical-profile-toolbar{display:grid;grid-template-columns:minmax(260px,1fr) auto;gap:12px;padding:10px;align-items:end}.vertical-profile-toolbar label{display:flex;flex-direction:column;gap:4px;color:var(--text3);font-size:11px}.vertical-profile-toolbar input{height:26px;border:1px solid var(--b1);background:var(--chrome3);color:var(--text2);padding:0 7px;font:inherit}.vertical-profile-chart{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:58px;margin:0 10px 10px;padding:10px;border:1px solid var(--b1);background:linear-gradient(180deg,var(--chrome2),var(--chrome3))}.vertical-profile-chart span{color:var(--cyan);font-size:12px;font-weight:700}.vertical-profile-chart strong{color:var(--texthi);font-size:12px;font-weight:600}.vertical-pvi-table{min-width:980px}.road-section-panel{flex:1;min-height:0}.road-section-toolbar{display:grid;grid-template-columns:minmax(240px,1.2fr) minmax(150px,.6fr) auto;gap:10px;align-items:end;padding:10px;border-bottom:1px solid var(--b1)}.road-section-toolbar label{display:flex;flex-direction:column;gap:4px;color:var(--text3);font-size:11px}.road-section-toolbar input{width:100%;min-width:0;height:26px;padding:0 7px;border:1px solid var(--b1);border-radius:3px;background:var(--chrome3);color:var(--text2);font:inherit}.road-section-toolbar input:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 1px #0078d738}.road-section-actions{justify-content:flex-end;flex-wrap:wrap}.road-section-summary-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:10px;border-bottom:1px solid var(--b1)}.road-section-summary-box{display:flex;flex-direction:column;gap:3px;min-width:0;padding:8px 10px;border:1px solid var(--b1);background:var(--chrome2)}.road-section-summary-box span{color:var(--text3);font-size:10px;letter-spacing:.06em;text-transform:uppercase}.road-section-summary-box strong{min-width:0;overflow:hidden;color:var(--texthi);font-size:13px;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.road-section-workarea{display:grid;grid-template-columns:minmax(520px,1.35fr) minmax(360px,.9fr);gap:10px;min-height:0;padding:0 10px 10px;overflow:hidden}.road-section-table-wrap{padding:0;max-height:none;min-height:0;overflow:auto}.road-section-table{min-width:980px}.road-section-table th,.road-section-table td{height:32px}.road-section-table td:nth-child(2),.road-section-table td:nth-child(3),.road-section-table td:nth-child(4),.road-section-table td:nth-child(5){width:98px}.road-section-preview{min-height:240px;border:1px solid var(--b1);background:var(--chrome2);overflow:hidden}.road-section-preview svg{display:block;width:100%;height:100%;min-height:240px}.road-preview-bg{fill:color-mix(in srgb,var(--chrome2) 76%,#0f2230 24%)}.road-preview-ground{fill:none;stroke:#d9a441;stroke-width:2;stroke-dasharray:7 5}.road-preview-centerline{stroke:var(--cyan);stroke-width:1;stroke-dasharray:4 4}.road-preview-component{stroke:#061018b8;stroke-width:1;opacity:.88}.road-preview-formation{stroke:#f1f5f8;stroke-width:2}.road-preview-title{fill:var(--texthi);font-size:12px;font-weight:700}.road-preview-note,.road-preview-label{fill:var(--text2);font-size:10px}@media(max-width:1200px){.alignment-top-row{grid-template-columns:1fr}.alignment-cad-panel{grid-template-columns:minmax(180px,240px) minmax(180px,240px) minmax(280px,1fr)}.alignment-settings-grid{grid-template-columns:repeat(2,minmax(180px,1fr))}.road-section-workarea{grid-template-columns:1fr}}@media(max-width:760px){.builder-header,.alignment-preview-banner,.alignment-section-header{flex-direction:column;align-items:stretch}.alignment-settings-grid{grid-template-columns:1fr}.alignment-cad-panel{grid-template-columns:1fr;overflow:auto}.alignment-point-picker{margin:0 10px 10px}.tin-summary-grid,.road-section-toolbar,.road-section-summary-grid{grid-template-columns:1fr}.alignment-section-header-actions{flex-direction:column;align-items:stretch}.alignment-validation-list li{grid-template-columns:1fr}}.double-button-workspace{--button-bg: #eef0f3;--button-card: #ffffff;--button-ink: #1f2933;--button-muted: #667085;--button-line: #cfd6df;--button-dark: #222831;--button-ok: #12805c;--button-bad: #b42318;--button-soft: #f7f9fb;background:var(--button-bg);color:var(--button-ink);display:grid;grid-template-rows:82px minmax(0,1fr);height:100%;min-height:0}.double-button-workspace header{background:var(--button-dark);border-bottom:4px solid #111827;color:#fff;padding:18px 24px}.double-button-workspace header h1{font-size:22px;font-weight:650;letter-spacing:0;margin:0}.double-button-workspace header p{color:#cbd5e1;margin:6px 0 0}.double-button-shell{display:grid;gap:16px;grid-template-columns:250px minmax(620px,1fr) 330px;min-height:0;overflow:hidden;padding:16px}.double-button-steps,.double-button-main,.double-button-card{background:var(--button-card);border:1px solid var(--button-line)}.double-button-steps{display:flex;flex-direction:column;min-height:0;overflow:auto;padding:12px}.double-button-steps button{align-items:center;background:#fff;border:0;border-left:3px solid transparent;color:var(--button-ink);cursor:pointer;display:grid;gap:2px 10px;grid-template-columns:26px 1fr;padding:12px;text-align:left}.double-button-steps button.active{background:#eef2f7;border-left-color:#111827}.double-button-steps span{align-items:center;background:#fff;border:1px solid var(--button-line);display:grid;font-weight:700;height:26px;justify-content:center;width:26px}.double-button-steps small{color:var(--button-muted);grid-column:2}.double-button-main{min-height:0;overflow:auto}.double-button-bar{align-items:center;background:var(--button-soft);border-bottom:1px solid var(--button-line);display:flex;justify-content:space-between;padding:14px 16px}.double-button-bar h2{font-size:18px;margin:0}.double-button-bar span{background:#111827;color:#fff;font-family:Consolas,monospace;padding:5px 8px}.double-button-content{padding:16px}.double-button-side{display:flex;flex-direction:column;gap:16px;min-height:0;overflow:auto}.double-button-card{margin-bottom:14px}.double-button-card h3,.double-button-card-title h3{background:#f1f5f9;border-bottom:1px solid var(--button-line);color:#334155;font-size:14px;margin:0;padding:10px 12px}.double-button-card p{background:#fffbeb;border:1px solid #f2d98d;color:#6b4e00;margin:14px;padding:10px}.double-button-card-title{align-items:center;background:#f1f5f9;border-bottom:1px solid var(--button-line);display:flex;justify-content:space-between}.double-button-card-title h3{border-bottom:0}.double-button-card-title button{margin-right:10px}.double-button-grid{display:grid;gap:12px}.double-button-grid.padded{padding:12px}.double-button-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.double-button-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.double-button-fieldset{border:1px solid var(--button-line);display:grid;gap:10px;grid-column:span 3;grid-template-columns:repeat(5,minmax(0,1fr));margin:0;padding:10px}.double-button-fieldset legend{color:#334155;font-size:12px;font-weight:700;padding:0 4px}.double-button-fieldset label:first-of-type{grid-column:span 2}.double-button-workspace label{color:var(--button-muted);display:block;font-size:12px}.double-button-workspace input,.double-button-workspace select,.double-button-workspace textarea{background:#fff;border:1px solid #b8c0cc;color:var(--button-ink);font-family:Consolas,monospace;font-size:14px;margin-top:5px;min-width:0;padding:7px 9px;width:100%}.double-button-workspace input,.double-button-workspace select{height:36px}.double-button-workspace input:read-only{background:#f8fafc}.double-button-workspace textarea{min-height:105px;resize:vertical}.double-button-workspace input:focus,.double-button-workspace select:focus,.double-button-workspace textarea:focus{border-color:#334155;outline:2px solid #cbd5e1}.double-button-table-wrap{overflow:auto;padding:12px}.double-button-table-wrap table{border-collapse:collapse;font-size:12px;min-width:760px;width:100%}.double-button-table-wrap th,.double-button-table-wrap td{border-bottom:1px solid var(--button-line);padding:8px;text-align:left}.double-button-table-wrap th{background:#f8fafc;color:var(--button-muted)}.double-button-table-wrap td input{height:32px;margin:0;padding:5px 7px}.double-button-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}.double-button-actions.inline{justify-content:flex-start;margin:0;padding:0 12px 12px}.double-button-workspace button{background:#fff;border:1px solid #111827;color:#111827;cursor:pointer;font-weight:700;padding:9px 13px}.double-button-workspace button.primary{background:#111827;color:#fff}.double-button-workspace button:disabled{cursor:not-allowed;opacity:.45}.double-button-kv{padding:8px 14px 14px}.double-button-kv div{border-bottom:1px dashed #d0d5dd;display:grid;gap:8px;grid-template-columns:1fr auto;padding:7px 0}.double-button-kv b,.mono{font-family:Consolas,monospace}.pass{color:var(--button-ok);font-weight:700}.fail{color:var(--button-bad);font-weight:700}@media(max-width:1180px){.double-button-shell{grid-template-columns:1fr;overflow:auto}.double-button-steps,.double-button-side{display:none}.double-button-grid.three,.double-button-grid.four,.double-button-fieldset{grid-template-columns:repeat(2,minmax(0,1fr))}.double-button-fieldset{grid-column:span 2}}.double-setup-workspace{--double-setup-bg: #e5e7eb;--double-setup-panel: #f8fafc;--double-setup-card: #ffffff;--double-setup-ink: #111827;--double-setup-muted: 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