:root{--available:#1f8f66;--onloan:#5578c2;--maint:#b45f86;--overdue:#c86b2a;--ink:#172c35;--muted:#637780;--teal:#166957;--line:#dce5e5;--bg:#f5f8f8}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.sidebar{width:250px;position:fixed;inset:0 auto 0 0;background:#102e35;color:#fff;padding:28px 20px;display:flex;flex-direction:column}.brand{display:flex;gap:12px;align-items:center;font-weight:650}.brand-icon{background:#397b72;padding:10px;border-radius:10px;font-size:17px}.brand small{display:block;color:#bed0d1;font-size:10px;font-weight:400;margin-top:4px}.nav-label{font-size:10px;letter-spacing:2px;color:#a6c0c3;margin:46px 14px 13px}nav{display:grid;gap:7px}.nav{border:0;background:transparent;color:#c9dbdc;text-align:left;padding:13px 15px;border-radius:8px;cursor:pointer;font-size:14px}.nav:hover,.nav.active{background:#295058;color:#fff}.sidebar-bottom{margin-top:auto;border-top:1px solid #36525a;padding:20px 12px 0;font-size:12px}.sidebar-bottom span{color:#aac3c6;font-size:11px}main{margin-left:250px;padding:36px 40px;max-width:1600px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;gap:15px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--teal);font-weight:700;margin:0 0 8px}h1{font-size:30px;letter-spacing:-.8px;margin:0}header p:last-child{color:var(--muted);margin:5px 0}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}.primary,.secondary{border-radius:7px;padding:10px 16px;font-weight:600}.primary{background:var(--teal);color:white;border:1px solid var(--teal)}.primary:hover{background:#104f42}.secondary{background:white;border:1px solid #cbd9d9;color:var(--ink)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:35px}.stat{border:1px solid var(--line);background:white;border-radius:10px;padding:20px}.stat .label{color:var(--muted);font-size:12px}.stat strong{display:block;font-size:32px;margin:10px 0 4px;font-weight:650}.stat small{font-size:11px;color:var(--muted)}.stat.overdue{border-top:3px solid #bc7139}.stat.available{border-top:3px solid var(--teal)}.section-head{display:flex;justify-content:space-between;align-items:center;margin:27px 0 14px}.section-head h2{font-size:17px;margin:0}.section-head p{margin:3px 0 0;font-size:12px;color:var(--muted)}.text-button{border:0;background:none;color:var(--teal);font-weight:600}.panel{background:white;border:1px solid var(--line);border-radius:10px;overflow:hidden}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;white-space:nowrap}th{text-align:left;padding:13px 18px;font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);background:#fafcfc}td{padding:16px 18px;border-top:1px solid #edf1f1;font-size:12px}td strong{font-weight:600}td small{display:block;font-size:10px;color:var(--muted);margin-top:3px}.badge{display:inline-block;font-size:10px;font-weight:600;border-radius:30px;padding:4px 10px;background:#edf2f3;color:#4d6066}.badge.available,.badge.returned{background:#e6f3ec;color:#226148}.badge.overdue{background:#fff0e4;color:#9a501f}.badge.active,.badge.on-loan{background:#e9effc;color:#3f5b97}.badge.maintenance{background:#f5e9ee;color:#8e4663}.small-button{border:1px solid #c9dcd5;color:var(--teal);background:white;border-radius:5px;padding:5px 9px;font-size:11px}.danger{border-color:#e8cccc;color:#9e4848;margin-left:5px}.toolbar{display:flex;gap:10px;margin:10px 0 20px;flex-wrap:wrap}.toolbar input{flex:1;min-width:200px}input,select{border:1px solid #cbd7d8;border-radius:6px;background:white;padding:10px 12px;color:var(--ink)}input:focus,select:focus{outline:2px solid #a8cebf;outline-offset:1px}.empty{padding:35px;color:var(--muted);text-align:center}.event{display:flex;gap:14px;padding:15px 20px;border-bottom:1px solid #edf1f1}.event:last-child{border:0}.event-dot{width:9px;height:9px;background:#59a18a;border-radius:50%;margin-top:6px;flex-shrink:0}.event small{color:var(--muted);display:block}footer{font-size:10px;color:#84959b;margin-top:30px;text-align:center}#notice{padding:12px 16px;border-radius:7px;background:#e2f1e9;color:#255f44;margin-bottom:20px}#notice.error{background:#fbecec;color:#923c3c}#loading{padding:30px;color:var(--muted)}dialog{width:min(480px,92vw);border:0;border-radius:12px;padding:25px;color:var(--ink);box-shadow:0 20px 70px #102e3540}dialog::backdrop{background:#102e3570}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.modal-head h2{font-size:20px;margin:0}.close{background:none;border:0;font-size:25px;color:var(--muted)}label{display:block;margin-bottom:13px;font-size:12px;font-weight:600}label input,label select{display:block;width:100%;margin-top:6px;font-weight:400}#form-error{color:#ab3737;font-size:12px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}a{color:var(--teal)}[hidden]{display:none!important}.charts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.chart-card{padding:20px 22px}.chart-card h3{font-size:14px;margin:0}.chart-card>p{font-size:11px;color:var(--muted);margin:3px 0 14px}.legend{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:11px;color:var(--muted);margin-bottom:12px}.legend span{display:inline-flex;align-items:center;gap:6px}.legend i,.swatch{width:10px;height:10px;border-radius:3px;display:inline-block}.bar-row{display:grid;grid-template-columns:minmax(80px,40%) 1fr;align-items:center;gap:10px;padding:5px 0;font-size:12px}.bar-row.stack{grid-template-columns:1fr;gap:3px;padding:4px 0}.bar-row .name{color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.track{display:flex;align-items:center;gap:8px;min-width:0}.bar{display:flex;gap:2px;height:18px;flex:0 0 auto}.seg{height:100%;min-width:3px;cursor:default}.seg:first-child{border-radius:0}.seg:last-child{border-radius:0 4px 4px 0}.value{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}.bar-row:hover .seg{opacity:.85}.bar-row .seg:hover{opacity:1}#chart-tip{position:fixed;pointer-events:none;background:#102e35;color:#fff;font-size:11px;padding:7px 10px;border-radius:6px;box-shadow:0 6px 20px #102e3540;z-index:10;white-space:nowrap}@media(max-width:1300px){.charts{grid-template-columns:repeat(2,1fr)}}@media(max-width:1000px){.sidebar{width:205px}main{margin-left:205px;padding:25px}.stats{grid-template-columns:repeat(2,1fr)}}@media(max-width:650px){.charts{grid-template-columns:1fr}.sidebar{position:static;width:100%;padding:16px}.brand small,.nav-label,.sidebar-bottom{display:none}nav{display:flex;overflow:auto;margin-top:15px;gap:3px}.nav{white-space:nowrap;font-size:11px;padding:8px}main{margin:0;padding:20px 14px}header{align-items:flex-start}h1{font-size:25px}header .primary{font-size:11px;padding:9px}.stats{gap:10px}.stat{padding:14px}.toolbar button{flex:1}.section-head .text-button{font-size:11px}}