@import url("https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700&family=Public+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap");:root{--paper:#edeee8;--surface:#fff;--surface-2:#f4f4ef;--ink:#1b2420;--ink-soft:#4b564f;--ink-faint:#7c857e;--line:#d9dad2;--line-strong:#c2c4b8;--accent:#c1571a;--accent-ink:#fff;--accent-soft:#f3dcc7;--blueprint:#1f6fa0;--success:#0f9e5c;--warning:#b8860b;--danger:#b23a2e;--danger-soft:#f4dad6;--cat-earth:#c1571a;--cat-pave:#1f6fa0;--cat-drain:#0f9e5c;--cat-struct:#8b4b95;--cost-labour:#1f6fa0;--cost-plant:#0f9e5c;--cost-material:#c1571a;--cost-markup:#8a8f7c;--font-display:"Barlow Condensed","Arial Narrow",sans-serif;--font-body:"Public Sans",system-ui,-apple-system,sans-serif;--font-mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;--radius:6px;--shadow:0 1px 2px rgba(27,36,32,.06),0 1px 1px rgba(27,36,32,.04);--rail-bg:#1b211d;--rail-bg-2:#232b26;--rail-text:#efefe9;--rail-text-dim:#95a096;--rail-line:#323b34;--rail-accent:#d9793b}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#14181a;--surface:#1b2124;--surface-2:#20272a;--ink:#e9ebe6;--ink-soft:#a9b2ac;--ink-faint:#6e7772;--line:#333b3d;--line-strong:#3f4749;--accent:#d9793b;--accent-ink:#161a17;--accent-soft:#3a2a1d;--blueprint:#5ca0d8;--success:#3bc48a;--warning:#d9a441;--danger:#e0685c;--danger-soft:#3a2320;--cat-earth:#c96a2e;--cat-pave:#4a8fc4;--cat-drain:#279e6d;--cat-struct:#9e5cae;--cost-labour:#4a8fc4;--cost-plant:#279e6d;--cost-material:#c96a2e;--cost-markup:#7a8072;--shadow:0 1px 2px rgba(0,0,0,.35),0 1px 1px rgba(0,0,0,.25)}}:root[data-theme=dark]{--paper:#14181a;--surface:#1b2124;--surface-2:#20272a;--ink:#e9ebe6;--ink-soft:#a9b2ac;--ink-faint:#6e7772;--line:#333b3d;--line-strong:#3f4749;--accent:#d9793b;--accent-ink:#161a17;--accent-soft:#3a2a1d;--blueprint:#5ca0d8;--success:#3bc48a;--warning:#d9a441;--danger:#e0685c;--danger-soft:#3a2320;--cat-earth:#c96a2e;--cat-pave:#4a8fc4;--cat-drain:#279e6d;--cat-struct:#9e5cae;--cost-labour:#4a8fc4;--cost-plant:#279e6d;--cost-material:#c96a2e;--cost-markup:#7a8072;--shadow:0 1px 2px rgba(0,0,0,.35),0 1px 1px rgba(0,0,0,.25)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}@media (prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important}}h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;margin:0;text-wrap:balance}.mono{font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}button{font-family:var(--font-body);cursor:pointer}input,select,textarea{font-family:var(--font-body);color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);border-radius:4px;padding:5px 8px;font-size:13px}button:focus-visible,input:focus,select:focus,textarea:focus{outline:2px solid var(--blueprint);outline-offset:1px}input.mono,td input{font-family:var(--font-mono)}a{color:var(--blueprint)}#app{min-height:100vh}#app,.rail{display:flex}.rail{width:236px;flex:none;background:var(--rail-bg);color:var(--rail-text);flex-direction:column;position:-webkit-sticky;position:sticky;top:0;height:100vh;border-right:1px solid var(--rail-line)}.rail-brand{padding:20px 18px 14px;border-bottom:1px solid var(--rail-line)}.rail-brand .mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:4px;background:var(--rail-accent);color:#1b211d;font-family:var(--font-display);font-weight:700;font-size:16px;margin-bottom:10px}.rail-brand h1{font-size:21px;letter-spacing:.01em;line-height:1.1}.rail-brand .tagline{font-size:11px;color:var(--rail-text-dim);text-transform:uppercase;letter-spacing:.08em;margin-top:4px}.rail-nav{padding:14px 10px;display:flex;flex-direction:column;gap:2px}.rail-nav a,.rail-nav button{display:flex;align-items:center;gap:10px;text-align:left;background:transparent;border:none;color:var(--rail-text-dim);padding:10px;border-radius:5px;font-size:13.5px;font-weight:500;text-decoration:none;width:100%}.rail-nav .num{font-family:var(--font-mono);font-size:11px;color:var(--rail-text-dim);width:16px;flex:none}.rail-nav a.active,.rail-nav a:hover,.rail-nav button.active,.rail-nav button:hover{background:var(--rail-bg-2);color:var(--rail-text)}.rail-nav a.active,.rail-nav button.active{box-shadow:inset 3px 0 0 var(--rail-accent)}.rail-nav a.active .num,.rail-nav button.active .num{color:var(--rail-accent)}.rail-totals{margin-top:auto;padding:16px 18px 20px;border-top:1px solid var(--rail-line)}.rail-totals .label{font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--rail-text-dim)}.rail-totals .value{font-family:var(--font-mono);font-size:22px;font-weight:600;color:var(--rail-text);margin-top:3px}.rail-totals .sub{font-size:11px;color:var(--rail-text-dim);margin-top:6px}main.content{flex:1 1;min-width:0;padding:28px 34px 60px;max-width:1180px}.titleblock{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;padding-bottom:16px;margin-bottom:22px;border-bottom:2px solid var(--ink);flex-wrap:wrap}.titleblock h2{font-size:26px}.titleblock .meta{font-size:12px;color:var(--ink-soft);margin-top:4px}.titleblock .stamp{font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);text-align:right;text-transform:uppercase;letter-spacing:.06em}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.section{margin-bottom:28px}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}.section-head h3{font-size:19px}.section-head .hint{font-size:12px;color:var(--ink-faint)}.note{background:var(--accent-soft);border:1px solid var(--accent);color:var(--ink);border-radius:5px;padding:10px 14px;font-size:12.5px;margin-bottom:18px;display:flex;gap:10px;align-items:flex-start}.note b{color:var(--accent)}table{width:100%;border-collapse:collapse}th{text-align:left;font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);padding:9px 10px;border-bottom:1px solid var(--line-strong);font-weight:600;white-space:nowrap}td{padding:6px 10px;border-bottom:1px solid var(--line);vertical-align:middle}tr:last-child td{border-bottom:none}td.num,th.num{text-align:right}td input[type=number],td input[type=text]{width:100%;min-width:60px}td input[type=number]{text-align:right}.rate-table-wrap{overflow-x:auto}.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);padding:7px 13px;border-radius:5px;font-size:12.5px;font-weight:600}.btn:hover{border-color:var(--ink-soft)}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn-primary:hover{filter:brightness(1.05)}.btn-ghost{border-color:transparent;background:transparent;color:var(--ink-soft)}.btn-ghost:hover{background:var(--surface-2);color:var(--ink)}.btn-danger{color:var(--danger)}.btn-sm{padding:4px 9px;font-size:11.5px}.btn[disabled]{opacity:.4;cursor:not-allowed}.field{display:flex;flex-direction:column;gap:4px}.field label{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);font-weight:600}.field-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:14px;gap:14px}.cat-block{margin-bottom:20px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}.cat-head{justify-content:space-between;padding:12px 14px;background:var(--surface-2);border-bottom:1px solid var(--line);cursor:pointer}.cat-head,.cat-head-left{display:flex;align-items:center}.cat-head-left{gap:10px}.cat-swatch{width:10px;height:10px;border-radius:2px;flex:none}.cat-head h4{font-size:17px}.cat-head .chev{color:var(--ink-faint);font-size:12px;transition:transform .15s;display:inline-block}.cat-head.collapsed .chev{transform:rotate(-90deg)}.cat-total{font-family:var(--font-mono);font-size:14.5px;font-weight:600}.cat-foot{display:flex;justify-content:flex-end;padding:8px 14px}.item-row td{cursor:pointer}.buildup-row td,.item-row.open{background:var(--surface-2)}.buildup-row td{border-bottom:1px solid var(--line);padding:14px}.buildup-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}.buildup-col h5{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);margin-bottom:8px;justify-content:space-between}.buildup-col h5,.comp-row{display:flex;align-items:center}.comp-row{gap:6px;margin-bottom:6px}.buildup-col .comp-row select{flex:1 1 auto;min-width:0;width:auto}.buildup-col .comp-row input{width:70px;min-width:70px;flex:0 0 70px}.comp-cost{width:74px;flex:none;text-align:right;font-family:var(--font-mono);font-size:12px;color:var(--ink-soft)}.kpi-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:14px;gap:14px;margin-bottom:24px}.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow)}.kpi .label{font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);font-weight:600}.kpi .value{font-family:var(--font-mono);font-size:21px;font-weight:600;margin-top:4px}.kpi .sub{font-size:11.5px;color:var(--ink-soft);margin-top:2px}.chart-card{padding:18px 20px 16px}.stackbar{display:flex;height:30px;border-radius:5px;overflow:hidden;background:var(--surface-2);margin:10px 0 4px}.stackbar .seg{position:relative;display:flex;align-items:center;justify-content:center;min-width:0}.stackbar .seg+.seg{box-shadow:inset 2px 0 0 var(--surface)}.stackbar .seg span{font-family:var(--font-mono);font-size:11px;font-weight:600;color:#fff;text-shadow:0 1px 1px rgba(0,0,0,.25);padding:0 4px;white-space:nowrap;overflow:hidden}.legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px}.legend-item{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--ink-soft)}.legend-item .sw{width:9px;height:9px;border-radius:2px;flex:none}.legend-item b{color:var(--ink);font-weight:600}.legend-item b,.markup-table td{font-family:var(--font-mono)}.markup-table td.label-cell{font-family:var(--font-body)}.markup-table input{width:70px}.grand-total-row td{border-top:2px solid var(--ink);font-weight:700;font-size:16px;padding-top:12px}.empty{padding:30px 14px;text-align:center;color:var(--ink-faint);font-size:13px}.tabs{display:flex;gap:4px;margin-bottom:20px;border-bottom:1px solid var(--line)}.tabs a,.tabs button{background:none;padding:9px 4px;margin-right:20px;font-size:13px;font-weight:600;color:var(--ink-faint);border:none;border-bottom:2px solid transparent;border-radius:0;text-decoration:none}.tabs a.active,.tabs button.active{color:var(--ink);border-bottom-color:var(--accent)}::selection{background:var(--accent-soft)}.auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--paper)}.auth-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 28px}.auth-card .mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:6px;background:var(--accent);color:var(--accent-ink);font-family:var(--font-display);font-weight:700;font-size:18px;margin-bottom:16px}.auth-card h1{font-size:24px;margin-bottom:4px}.auth-card p.lead{color:var(--ink-soft);font-size:13px;margin:0 0 22px}.auth-form{display:flex;flex-direction:column;gap:14px}.auth-form input{width:100%;padding:9px 11px;font-size:14px}.auth-error{background:var(--danger-soft);color:var(--danger);border:1px solid var(--danger);border-radius:5px;padding:9px 12px;font-size:12.5px}.auth-foot{margin-top:18px;font-size:12.5px;color:var(--ink-soft);text-align:center}@media print{.no-print,.rail{display:none!important}main.content{max-width:none;padding:0}body{background:#fff}}@media (max-width:880px){#app{flex-direction:column}.rail{position:static;height:auto;width:100%}main.content{padding:20px}.buildup-grid{grid-template-columns:1fr}}.landing{min-height:100vh;background:var(--paper)}.landing-nav{display:flex;align-items:center;justify-content:space-between;padding:18px clamp(20px,5vw,64px);border-bottom:1px solid var(--line)}.landing-nav-brand{display:flex;align-items:center;gap:10px}.landing-nav-brand .mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:6px;background:var(--accent);color:var(--accent-ink);font-size:16px}.landing-nav-brand .mark,.landing-nav-name{font-family:var(--font-display);font-weight:700}.landing-nav-name{font-size:18px;color:var(--ink)}.landing-nav-links{display:flex;align-items:center;gap:16px}.landing-nav-links a:not(.btn){color:var(--ink-soft);font-size:13.5px;font-weight:600;text-decoration:none}.landing-nav-links a:not(.btn):hover{color:var(--ink)}.landing-hero{max-width:740px;margin:0 auto;text-align:center;padding:clamp(48px,9vw,96px) 24px clamp(40px,6vw,72px)}.landing-eyebrow{font-family:var(--font-mono);font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);font-weight:600;margin:0 0 14px}.landing-hero h1{font-size:clamp(30px,4.6vw,46px);line-height:1.08;color:var(--ink);margin:0 0 18px}.landing-lead{font-size:16px;line-height:1.6;color:var(--ink-soft);margin:0 0 30px}.landing-cta{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.landing-cta .btn{padding:11px 20px;font-size:14px}.landing-fineprint{font-size:12px;color:var(--ink-faint);margin:18px 0 0}.landing-features{max-width:1080px;margin:0 auto;padding:0 24px 72px;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));grid-gap:18px;gap:18px}.feature-card{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 20px 22px}.feature-tag{display:block;font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;font-weight:700;margin-bottom:10px}.feature-card h3{font-size:18px;color:var(--ink);margin-bottom:8px}.feature-card p{font-size:13px;line-height:1.55;color:var(--ink-soft);margin:0}.landing-band{text-align:center;background:var(--rail-bg);color:var(--rail-text);padding:clamp(40px,7vw,64px) 24px}.landing-band h2{font-size:clamp(22px,3vw,30px);color:var(--rail-text);margin-bottom:10px}.landing-band p{font-size:14px;color:var(--rail-text-dim);max-width:480px;margin:0 auto 22px}.landing-band .btn-primary{padding:11px 22px;font-size:14px}.landing-foot{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px;padding:22px clamp(20px,5vw,64px);font-size:12px;color:var(--ink-faint)}.landing-foot span:first-child{font-family:var(--font-display);font-weight:700;color:var(--ink-soft)}@media (max-width:560px){.landing-nav-links{gap:10px}}