:root{--bg:#071820;--panel:#0c2530;--panel2:#12313d;--line:#244751;--text:#e8f5f6;--muted:#9bb4ba;--accent:#29b99d;--green:#57c879;--yellow:#efbf37;--blue:#5492df;--red:#e05b52}*{box-sizing:border-box}body{margin:0;font:14px/1.45 Inter,system-ui,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:#b9e7df;text-decoration:none}.topbar{height:66px;display:flex;align-items:center;padding:0 22px;border-bottom:1px solid #16323d;background:#06141b;gap:28px}.logo{font-size:15px;letter-spacing:3px}.logo small{display:block;font-size:8px;letter-spacing:2px;color:#7d9aa3}.topbar nav{display:flex;gap:8px;flex:1}.topbar nav a{padding:10px 16px;border-radius:9px;color:#93aab1}.topbar nav .active{background:#1b6f7a;color:white}.admin-link{margin-left:auto}.app-shell{display:grid;grid-template-columns:140px minmax(0,1fr) 310px;gap:8px;padding:8px;min-height:calc(100vh - 66px)}.side-menu{background:#0a212b;border:1px solid #143640;border-radius:12px;padding:14px 8px;display:flex;flex-direction:column;gap:4px}.side-menu>b{padding:7px 10px}.side-menu a{color:#9db3b9;padding:10px;border-radius:8px}.side-menu a.active{background:#174551;color:#fff}.viewer-column{min-width:0}.viewer{position:relative;overflow:hidden;border-radius:12px;border:1px solid #25434b;background:#10262f;aspect-ratio:16/9}.viewer>img{position:absolute;width:100%;height:100%;object-fit:cover}.viewer svg{position:absolute;inset:0;width:100%;height:100%}.hotspot{fill:rgba(50,210,130,.03);stroke:rgba(255,255,255,.45);stroke-width:.13;cursor:pointer;vector-effect:non-scaling-stroke;transition:.2s}.hotspot-label{fill:#fff;font-size:1.6px;font-weight:700;text-anchor:middle;dominant-baseline:middle;paint-order:stroke;stroke:#0b2028;stroke-width:.35;pointer-events:none}.hotspot:hover,.hotspot.selected{fill:rgba(72,230,120,.42);stroke:#76ff9b;stroke-width:.35;filter:drop-shadow(0 0 1px #76ff9b)}.viewer-title{position:absolute;left:14px;top:14px;background:rgba(7,24,32,.82);padding:8px;border-radius:10px}.viewer-title select{background:#102f3a;color:#fff;border:1px solid #2c5864;border-radius:7px;padding:7px}.viewer-tools{position:absolute;left:50%;transform:translateX(-50%);bottom:10px;display:flex;background:rgba(5,20,28,.86);padding:5px;border-radius:10px;gap:4px}.viewer-tools button{background:transparent;color:#b7cbd0;border:0;padding:8px 12px;border-radius:7px}.viewer-tools .active{background:#24515c;color:#fff}.detail-panel{background:#0b222c;border:1px solid #1b3f4a;border-radius:12px;padding:16px;min-width:0}.detail-empty{color:#9db2b8;text-align:center;padding:40px 8px}.detail-head{display:flex;align-items:flex-start;gap:8px}.detail-head h2{margin:3px 0 16px;flex:1}.eyebrow{font-size:10px;letter-spacing:2px;color:#80aaa9}.close-detail{background:transparent;border:0;color:#fff;font-size:24px}.building-hero{display:grid;grid-template-columns:110px 1fr;gap:16px;background:#102d38;padding:12px;border-radius:12px}.tower-illustration{height:160px;border-radius:10px;background:linear-gradient(150deg,#8aa0a7,#263e48 45%,#78919a);display:flex;align-items:center;justify-content:center;font-size:34px;font-weight:800}.metric{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #294752}.status-list>div{display:flex;align-items:center;padding:8px 0;gap:8px}.status-list b{margin-left:auto}.dot{width:10px;height:10px;border-radius:2px}.available{background:var(--green)}.reserved{background:var(--yellow)}.deposit{background:var(--blue)}.sold{background:var(--red)}.inventory-strip{margin-top:8px;display:grid;grid-template-columns:280px 1fr;gap:8px}.filters,.unit-cards{background:#0b222c;border:1px solid #1b3f4a;border-radius:12px;padding:14px}.filter-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.filter-grid select{width:100%;background:#102f3a;color:#d9eaed;border:1px solid #294a55;border-radius:8px;padding:9px}.btn{border:1px solid #355560;background:#173642;color:#fff;padding:9px 12px;border-radius:8px;cursor:pointer}.btn.primary{background:var(--accent);border-color:var(--accent)}.btn.success{background:#25895b}.btn.danger{background:#7a3b3b;border-color:#7a3b3b}.wide{width:100%;margin-top:10px}.unit-cards{display:flex;gap:10px;align-items:stretch}.placeholder-card{color:#8da8af;padding:22px}.admin-shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.admin-nav{padding:20px 12px;background:#07171e;border-right:1px solid #17323d;display:flex;flex-direction:column;gap:5px}.admin-nav .brand{padding:10px 8px 24px;letter-spacing:2px}.admin-nav a{padding:10px;border-radius:7px}.admin-nav a:hover{background:#12303a}.admin-main{padding:24px;min-width:0}.card{background:#0d2630;border:1px solid #1b414c;border-radius:12px;padding:18px;margin-bottom:16px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}.stat{background:#10303b;border:1px solid #1e4651;border-radius:12px;padding:20px}.stat b{font-size:28px;display:block}.stat span{color:var(--muted)}input,select,textarea{background:#0b2028;color:#fff;border:1px solid #2d4b55;border-radius:7px;padding:9px}textarea{min-height:90px}.grid-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.grid-form label{display:flex;flex-direction:column;gap:5px}.span-2{grid-column:span 2}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px;border-bottom:1px solid #25434d}.inline{display:flex;gap:6px}.editor-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:12px}.editor-actions{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.image-editor{position:relative;aspect-ratio:16/9;background:#08171d;overflow:hidden;border-radius:10px}.image-editor img{position:absolute;width:100%;height:100%;object-fit:contain}.image-editor svg{position:absolute;inset:0;width:100%;height:100%;cursor:crosshair}.saved-zone{fill:rgba(42,190,155,.2);stroke:#54d8bd;stroke-width:.25}.image-editor polyline{fill:rgba(255,255,255,.05);stroke:#fff;stroke-width:.25}.zone-row{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid #25434d}.zone-row span{flex:1}.muted{color:var(--muted);padding-top:8px}.login-page{display:grid;place-items:center;min-height:100vh}.login-card{width:min(420px,calc(100% - 32px));background:#0e2832;border:1px solid #1d4550;border-radius:16px;padding:25px;display:flex;flex-direction:column;gap:8px}.alert{background:#5b3030;padding:9px;border-radius:8px}@media(max-width:1050px){.app-shell{grid-template-columns:100px minmax(0,1fr)}.detail-panel{grid-column:1/-1}.side-menu{grid-row:1/3}.topbar nav{display:none}.editor-layout{grid-template-columns:1fr}.inventory-strip{grid-template-columns:1fr}}@media(max-width:680px){.app-shell{display:block}.side-menu{display:none}.viewer{aspect-ratio:4/3}.inventory-strip{display:block}.filters{margin-bottom:8px}.detail-panel{margin-top:8px}.admin-shell{display:block}.admin-nav{flex-direction:row;overflow:auto}.admin-main{padding:12px}.grid-form{grid-template-columns:1fr}.span-2{grid-column:auto}.stats{grid-template-columns:1fr 1fr}.filter-grid{grid-template-columns:1fr}.hotspot-label{font-size:2.4px}}
/* Admin usability additions - V1.1 */
.section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:14px}.section-head h2,.card h2{margin:0 0 5px}.no-pad{padding-top:0}.field-help{color:var(--muted);font-size:12px}.checkbox-row{flex-direction:row!important;align-items:center;gap:8px!important}.checkbox-row input{width:auto}.form-actions{display:flex;gap:8px;flex-wrap:wrap}.current-image{display:flex;flex-direction:column;gap:7px}.current-image img{display:block;width:min(520px,100%);max-height:260px;object-fit:contain;object-position:left center;border:1px solid var(--line);border-radius:10px;background:#071820}.notice{padding:12px 14px;border:1px solid var(--line);border-radius:10px;margin-bottom:14px}.success-note{background:#10392f;border-color:#286853}.warning-note{background:#3a3118;border-color:#6d5d28}.status-badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:12px}.status-badge.on{background:#174c3c;color:#bff4dc}.status-badge.off{background:#3d3030;color:#e6bebe}.table-scroll{overflow:auto}.actions-cell{white-space:nowrap}.actions-cell>a{margin-right:10px}.inline-form{display:inline}.link-danger{border:0;background:transparent;color:#f39b94;padding:0;cursor:pointer;font:inherit}.draw-guide{border-color:#2b5b60}.guide-title{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px}.guide-title h2{margin:0 0 4px}.guide-title p{margin:0;color:var(--muted)}.guide-icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:#173f47;color:#b9fff1;font-size:20px;flex:0 0 auto}.guide-steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.guide-step{background:#0a2029;border:1px solid #21434d;border-radius:10px;padding:11px;display:flex;gap:9px;min-width:0}.guide-step>b{display:grid;place-items:center;width:25px;height:25px;flex:0 0 25px;border-radius:50%;background:#24515c}.guide-step span{font-size:12px;color:#b6c9ce}.guide-step strong{color:#fff;font-size:13px}.guide-example{margin-top:12px;padding:10px 12px;background:#091c24;border-radius:8px;color:#b9cbd0}.guide-example .good{color:#87e1b1;font-weight:700}.guide-example .bad{color:#ef9a92;font-weight:700;margin-left:12px}.editor-message{color:#c2d5d9;padding-top:10px;min-height:32px}.empty-zones{padding:14px 0}.btn:disabled{opacity:.45;cursor:not-allowed}
@media(max-width:1100px){.guide-steps{grid-template-columns:1fr 1fr}.guide-step:last-child{grid-column:1/-1}}
@media(max-width:680px){.section-head{display:block}.section-head .btn{display:inline-block;margin-top:10px}.guide-steps{grid-template-columns:1fr}.guide-step:last-child{grid-column:auto}.guide-example .bad{display:block;margin-left:0;margin-top:5px}.actions-cell{white-space:normal;min-width:220px}}
/* V1.2 - tỷ lệ ảnh chính xác + tầng/căn */
.viewer{aspect-ratio:auto;min-height:0}.viewer>img{object-fit:contain;background:#08171d}.viewer-title{display:flex;align-items:center;gap:8px;max-width:calc(100% - 28px)}.viewer-back{border:1px solid #365a64;background:#102f3a;color:#fff;border-radius:7px;padding:7px 9px;cursor:pointer}.viewer-crumb{color:#dff6f2;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:240px}.image-editor{aspect-ratio:auto;min-height:0}.image-editor img{object-fit:contain}.draft-point{fill:#63ffd0;stroke:#07242a;stroke-width:.18;vector-effect:non-scaling-stroke}.draft-point-label{fill:#fff;font-size:1.8px;font-weight:800;paint-order:stroke;stroke:#07242a;stroke-width:.35;pointer-events:none}.align-note{margin-top:14px;margin-bottom:0}.wrap{flex-wrap:wrap;align-items:end}.inline.wrap label{display:flex;flex-direction:column;gap:4px}.status-available{fill:rgba(64,205,119,.18)!important}.status-reserved{fill:rgba(239,191,55,.22)!important}.status-deposit{fill:rgba(84,146,223,.22)!important}.status-sold{fill:rgba(224,91,82,.25)!important}.status-not_open{fill:rgba(150,160,164,.18)!important}.status-pill{display:inline-block;margin-top:14px;padding:7px 10px;border-radius:999px;background:#24414b}.status-pill.available{background:#174c3c}.status-pill.reserved{background:#66551b}.status-pill.deposit{background:#234b76}.status-pill.sold{background:#673330}.unit-detail>img{display:block;width:100%;max-height:220px;object-fit:cover;border-radius:10px;margin-bottom:12px}
/* V1.3 */
.editor-viewport{overflow:auto;max-width:100%;max-height:72vh;background:#06151b;border:1px solid #244751;border-radius:10px}.editor-viewport .image-editor{width:100%;transform-origin:0 0;border-radius:0}.zoom-control{display:flex!important;flex-direction:row!important;align-items:center!important;gap:8px!important;margin-left:auto}.zoom-control input{width:120px;padding:0}.zone-row{flex-wrap:wrap}.zone-row span{min-width:120px}.hover-tip{position:absolute;z-index:8;pointer-events:none;background:rgba(5,20,28,.94);border:1px solid #315863;color:#fff;padding:8px 10px;border-radius:8px;min-width:145px;font-size:12px;box-shadow:0 8px 24px rgba(0,0,0,.25)}.unit-cards{overflow-x:auto;align-items:stretch}.unit-card{min-width:190px;max-width:220px;text-align:left;border:1px solid #2a4b55;background:#102d38;color:#e8f5f6;border-radius:10px;padding:12px;cursor:pointer}.unit-card:hover{border-color:#54d8bd;background:#143945}.unit-card-top{display:flex;justify-content:space-between;gap:8px;align-items:center}.unit-card small{display:block;color:#93aeb5;margin:7px 0}.unit-card-meta{margin:10px 0;color:#cfe3e5}.unit-card strong{font-size:16px}.status-mini{font-size:10px;padding:4px 6px;border-radius:999px;white-space:nowrap}.status-mini.available{background:#174c3c}.status-mini.reserved{background:#66551b}.status-mini.deposit{background:#234b76}.status-mini.sold{background:#673330}.status-mini.not_open{background:#3d484c}.span-filter{grid-column:span 2}.status-note{width:110px}.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.detail-grid>div{background:#102f3a;padding:12px;border-radius:8px}.detail-grid span,.detail-grid b{display:block}.no-pad{padding-top:0}.toolbar{display:flex;justify-content:space-between;gap:10px;align-items:end;flex-wrap:wrap}.toolbar form{display:flex;gap:10px;flex-wrap:wrap}.toolbar label{display:flex;flex-direction:column;gap:4px}.form-actions,.actions-cell{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.inline-form{display:inline}.link-danger{background:transparent;border:0;color:#ff948d;cursor:pointer;padding:0}.field-help{color:#90a9af}.current-image img{max-width:520px;max-height:260px;border-radius:8px}.status-badge{padding:4px 7px;border-radius:999px;font-size:11px}.status-badge.on{background:#174c3c}.status-badge.off{background:#493737}.notice{padding:12px;border-radius:9px;margin-bottom:16px}.success-note{background:#153e36;border:1px solid #2e6a5b}.warning-note{background:#4d421e;border:1px solid #786c2c}.draw-guide .guide-title{display:flex;gap:12px;align-items:flex-start}.guide-icon{font-size:24px}.guide-title h2{margin:0}.guide-title p{margin:4px 0}.guide-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:14px}.guide-step{background:#102f3a;padding:10px;border-radius:9px;display:flex;gap:8px}.guide-step>b{display:grid;place-items:center;min-width:26px;height:26px;border-radius:50%;background:#225c65}.editor-message{margin-top:10px;color:#b6cbd0}.image-editor{position:relative;background:#08171d;overflow:hidden}.image-editor img,.image-editor svg{position:absolute;inset:0;width:100%;height:100%}.image-editor img{object-fit:fill}.viewer>img{object-fit:fill}
@media(max-width:900px){.guide-steps{grid-template-columns:1fr 1fr}.detail-grid{grid-template-columns:1fr}.zoom-control{width:100%;margin-left:0}.span-filter{grid-column:auto}}