:root{--nav:#0d3554;--nav2:#15496f;--ink:#16324f;--muted:#71839a;--line:#d8e2ed;--bg:#eef4fa;--card:#fff;--blue:#0e5594;--cyan:#1f83ab;--soft:#f6f9fc;--shadow:0 8px 24px rgba(22,50,79,.08)}
*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--bg)}button,input,select{font:inherit}
body{overflow:hidden}.app{height:100vh;display:grid;grid-template-columns:248px 1fr}.sidebar{background:linear-gradient(180deg,#0a2f4b,#123f61);color:#d9e7f2;padding:16px 10px;overflow:auto;border-right:1px solid rgba(255,255,255,.08)}
.brand{padding:8px 12px 17px;border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:12px}.brand strong{font-size:18px;color:white}.brand small{display:block;font-size:10px;opacity:.66;margin-top:3px}.nav-section{border-top:1px solid rgba(255,255,255,.10);padding-top:10px;margin-top:10px}.nav-head{display:flex;gap:9px;align-items:center;padding:8px 10px;color:#fff;font-weight:800;font-size:13px}.nav-btn{display:block;width:100%;text-align:left;border:0;background:transparent;color:#c7d8e5;padding:7px 10px 7px 35px;border-radius:7px;font-size:12px;font-weight:650;cursor:pointer}.nav-btn:hover,.nav-btn.active{background:rgba(99,173,229,.22);color:#fff}.nav-main{padding-left:12px;font-weight:750}.sidebar-bottom{margin-top:26px;padding-top:10px;border-top:1px solid rgba(255,255,255,.12)}
.main{min-width:0;display:flex;flex-direction:column;height:100vh}.topbar{height:58px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 18px;gap:15px;flex:0 0 auto}.home-pill{border:1px solid #c8d7e7;background:white;border-radius:12px;padding:9px 14px;font-weight:800;color:var(--ink)}.session-tag{font-size:11px;letter-spacing:.14em;color:#75869d;font-weight:800}.file-count{font-weight:900;font-size:16px}.muted{color:var(--muted)}.spacer{flex:1}.btn{border:1px solid #c8d7e7;background:#fff;color:var(--ink);border-radius:10px;padding:8px 12px;font-weight:750;cursor:pointer}.btn:hover{background:#f2f7fb}.btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.viewbar{min-height:52px;background:#f9fbfd;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;padding:8px 18px;flex-wrap:wrap}.viewbar .label{font-size:11px;font-weight:900;color:#788aa0;letter-spacing:.08em;margin-right:4px}.view-btn{border:1px solid #cbd8e6;background:white;border-radius:10px;padding:8px 14px;font-weight:750;color:var(--ink);cursor:pointer}.view-btn.active{background:#113f72;color:white;border-color:#113f72}.view-controls{margin-left:auto;display:flex;gap:8px;align-items:center;font-size:12px}.view-controls input,.view-controls select{border:1px solid #c8d7e7;border-radius:7px;padding:6px;background:#fff;color:var(--ink)}.view-controls input{width:90px}.view-controls .period-day{width:58px}.view-controls .period-label,.specific-period-row .period-label{font-size:9px;font-weight:900;letter-spacing:.08em;color:#71839a}.specific-period-row input,.specific-period-row select{border:1px solid #c8d7e7;border-radius:7px;padding:6px;background:#fff;color:var(--ink)}.specific-period-row .period-day{width:58px}
.content{overflow:auto;padding:14px 16px 40px;flex:1}.hero{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:12px;margin-bottom:12px}.hero-main,.hero-stat{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.hero-main{padding:17px 20px}.eyebrow{font-size:10px;letter-spacing:.14em;font-weight:900;color:#2d67bc;margin-bottom:6px}.hero h1{font-size:22px;margin:0 0 4px}.hero p{margin:0;color:var(--muted);font-size:13px}.hero-stat{padding:14px 17px;background:linear-gradient(135deg,#104d79,#20779b);color:white}.hero-stat span{font-size:10px;letter-spacing:.08em;font-weight:900}.hero-stat strong{font-size:26px;display:block;margin:3px 0}.hero-stat small{opacity:.84}
.controls{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:12px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}.controls label{font-size:11px;font-weight:800;color:#5f728a}.controls input,.controls select{border:1px solid #c8d7e7;border-radius:7px;padding:6px 8px;background:white}.cards{display:grid;gap:12px}.chart-card{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}.chart-head{padding:13px 14px 8px;display:flex;gap:10px;align-items:flex-start}.chart-title{flex:1}.chart-title h3{font-size:14px;margin:0 0 4px}.chart-title p{font-size:11px;color:var(--muted);margin:0}.chart-tools{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end}.tool-btn{border:1px solid #cad7e4;background:white;border-radius:9px;padding:7px 10px;font-size:11px;font-weight:800;color:var(--ink);cursor:pointer}.tool-btn:hover{background:#f3f8fc}.chart-wrap{height:380px;padding:4px 12px 14px;position:relative}.chart-wrap.tall{height:520px}.chart-wrap canvas{width:100%!important;height:100%!important}.chart-note{padding:8px 14px 12px;font-size:10px;color:#7b8da2}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}.metric{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px}.metric b{display:block;font-size:22px}.metric span{font-size:11px;color:var(--muted)}
.table-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:auto}.table-card table{width:100%;border-collapse:collapse;font-size:11px}.table-card th,.table-card td{padding:8px 10px;border-bottom:1px solid #e7edf4;text-align:left}.table-card th{position:sticky;top:0;background:#f5f8fb;z-index:1}.file-chip{display:flex;align-items:center;gap:7px}.dot{width:9px;height:9px;border-radius:50%;display:inline-block}.empty{background:#fff;border:1px dashed #b9c9d9;border-radius:14px;padding:60px 30px;text-align:center;color:#71839a}.empty h2{color:var(--ink)}
.modal{position:fixed;inset:0;background:rgba(8,25,40,.44);display:none;align-items:center;justify-content:center;z-index:50;padding:18px}.modal.open{display:flex}.dialog{background:white;border-radius:16px;box-shadow:0 20px 70px rgba(0,0,0,.25);width:min(980px,95vw);max-height:90vh;display:flex;flex-direction:column}.dialog-head{padding:16px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}.dialog-body{padding:14px 18px;overflow:auto}.dropzone{border:2px dashed #b6cada;border-radius:12px;padding:22px;text-align:center;background:#f7fbfe;margin-bottom:12px}.file-list{display:grid;gap:6px}.file-row{display:grid;grid-template-columns:30px 1fr 90px 80px 38px;gap:8px;align-items:center;padding:8px;border:1px solid #e1e9f1;border-radius:8px;font-size:11px}.file-row input[type=checkbox]{transform:scale(1.15)}
.maximized{position:fixed!important;inset:10px!important;z-index:60!important;border-radius:14px!important;box-shadow:0 30px 90px rgba(0,0,0,.35)!important}.maximized .chart-wrap{height:calc(100vh - 95px)!important}.wind-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:10px}.wind-card{background:white;border:1px solid var(--line);border-radius:12px;padding:10px}.wind-card h4{font-size:10px;margin:0 0 6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.wind-card canvas{width:100%;aspect-ratio:1/1}.pager{display:flex;gap:8px;align-items:center;justify-content:center;margin:12px}.small{font-size:11px}.warn{color:#a35b00;background:#fff6e9;border:1px solid #f1d3a6;padding:8px 10px;border-radius:8px}.ok{color:#21643c;background:#effaf3;border:1px solid #bde5ca;padding:8px 10px;border-radius:8px}

/* v13.3 two-file comparison */
.cmp-controls{background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px 14px;margin-bottom:12px;box-shadow:var(--shadow)}
.cmp-pair{display:grid;grid-template-columns:minmax(220px,1fr) minmax(220px,1fr);gap:10px;margin-bottom:10px}.cmp-field label{display:block;font-size:10px;font-weight:900;color:#62768d;letter-spacing:.06em;margin-bottom:4px}.cmp-field select{width:100%;border:1px solid #c8d7e7;border-radius:9px;padding:9px;background:#fff;color:var(--ink);font-weight:700}
.cmp-row{display:flex;gap:7px;align-items:center;flex-wrap:wrap;margin-top:9px}.cmp-row .cmp-label{font-size:10px;font-weight:900;letter-spacing:.08em;color:#71839a;margin-right:2px}.cmp-chip,.cmp-view{border:1px solid #cad7e4;background:#fff;border-radius:999px;padding:7px 10px;font-size:10.5px;font-weight:800;color:var(--ink);cursor:pointer}.cmp-chip.on,.cmp-view.on{background:#113f72;color:#fff;border-color:#113f72}.cmp-preset{border:1px solid #c8d7e7;background:#f7fbfe;border-radius:8px;padding:7px 10px;font-size:10.5px;font-weight:800;color:#244767;cursor:pointer}.cmp-key{display:flex;gap:18px;flex-wrap:wrap;margin:10px 0 0;font-size:11px;color:#51667e}.cmp-key i{display:inline-block;width:28px;border-top:3px solid #53657a;vertical-align:middle;margin-right:6px}.cmp-key i.dashed{border-top-style:dashed}.cmp-summary{margin-top:12px}.cmp-summary td.num{text-align:right;font-variant-numeric:tabular-nums}.cmp-summary .delta-pos{color:#a1431f}.cmp-summary .delta-neg{color:#0e6687}.cmp-note{font-size:10px;color:#71839a;margin-top:8px}.cmp-chart .chart-wrap{height:500px}
@media(max-width:800px){.cmp-pair{grid-template-columns:1fr}}

/* v13.2 Climate Library / CIBSE zone explorer */
.library-tabs{display:flex;gap:7px;margin-bottom:12px;border-bottom:1px solid var(--line);padding-bottom:10px}.library-tab{border:1px solid #cad7e4;background:#fff;border-radius:9px;padding:8px 12px;font-weight:800;color:var(--ink);cursor:pointer}.library-tab.active{background:var(--blue);border-color:var(--blue);color:#fff}.library-pane{display:none}.library-pane.active{display:block}.library-intro{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px;padding:10px 12px;background:#f7fbfe;border:1px solid #dce8f1;border-radius:11px}.library-status{font-size:11px;color:var(--muted);flex:1;min-width:240px}.zone-layout{display:grid;grid-template-columns:minmax(360px,1.15fr) minmax(330px,.85fr);gap:14px}.zone-map-card,.zone-select-card{border:1px solid var(--line);border-radius:13px;background:#fff;padding:12px}.zone-map-head{display:flex;align-items:center;gap:8px;margin-bottom:9px}.zone-map-head strong{font-size:13px}.zone-map-wrap{height:540px;border-radius:11px;overflow:hidden;background:#f4f8fb;position:relative}.zone-map-wrap svg{display:block;width:100%;height:100%}.zone-hit{fill:rgba(14,85,148,.02);stroke:rgba(14,85,148,.18);stroke-width:1.4;cursor:pointer}.zone-hit:hover{fill:rgba(31,131,171,.18);stroke:#0e5594;stroke-width:2}.zone-hit.selected{fill:rgba(14,85,148,.22);stroke:#082f56;stroke-width:3}.zone-hit.unavailable{fill:rgba(120,130,140,.04);stroke:rgba(120,130,140,.1);cursor:not-allowed}.zone-number{font:800 8px Segoe UI,Arial;fill:#143e63;pointer-events:none;text-anchor:middle;dominant-baseline:central}.zone-select-card label{display:block;font-size:11px;font-weight:800;color:#5f728a;margin:8px 0 4px}.zone-select-card select,.zone-select-card input{width:100%;border:1px solid #c8d7e7;border-radius:8px;padding:8px;background:#fff;color:var(--ink)}.zone-select-card select[multiple]{min-height:205px}.zone-title-row{display:flex;justify-content:space-between;gap:8px;align-items:center;margin:10px 0}.zone-title-row h3{margin:0;font-size:18px}.count-pill{font-size:10px;font-weight:900;background:#e9f4fb;color:#0e5594;padding:6px 8px;border-radius:999px}.bulk-row{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:6px}.bulk-row .small{margin-left:auto}.library-actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}.upload-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.upload-card{border:1px solid var(--line);border-radius:13px;padding:18px;background:#f9fbfd}.upload-card h3{margin:0 0 6px;font-size:15px}.upload-card p{font-size:11px;color:var(--muted);line-height:1.5}.library-current{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
@media(max-width:980px){.zone-layout{grid-template-columns:1fr}.zone-map-wrap{height:480px}.upload-grid{grid-template-columns:1fr}}
@media(max-width:900px){.app{grid-template-columns:200px 1fr}.hero{grid-template-columns:1fr}.hero-stat{display:none}.chart-tools{max-width:270px}.chart-wrap{height:320px}}

.quality-toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:0 0 10px}.quality-panel{margin-top:12px;border:1px solid var(--line);border-radius:12px;background:#fff;overflow:auto;max-height:320px}.quality-table{width:100%;border-collapse:collapse;font-size:11px}.quality-table th{position:sticky;top:0;background:#f6f9fc;color:#60758b;text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);font-size:9px;letter-spacing:.06em;text-transform:uppercase}.quality-table td{padding:7px 8px;border-bottom:1px solid #edf2f6;white-space:nowrap}.quality-badge{display:inline-flex;align-items:center;padding:3px 7px;border-radius:999px;font-weight:800;font-size:9px;letter-spacing:.04em}.quality-badge.good{background:#e9f8ef;color:#167347}.quality-badge.warn{background:#fff5dc;color:#956000}.quality-badge.bad{background:#feecec;color:#a52b2b}.quality-note{font-size:10px;color:#687d91}.restore-input{display:none}