:root{--bg: #f4f6f9;--surface: #ffffff;--surface-2: #fafbfc;--border: #e4e8ee;--border-strong: #d3d9e2;--text: #17202b;--muted: #5f6b7a;--faint: #8a95a3;--accent: #1f6feb;--accent-weak: #eaf1fd;--accent-strong: #175bd0;--ok-bg: #e7f7ee;--ok-fg: #0e7a41;--ok-ring: #bfe8cf;--none-bg: #fdeaea;--none-fg: #c62828;--none-ring: #f4c9c9;--shadow-sm: 0 1px 2px rgba(20, 30, 45, .06), 0 1px 3px rgba(20, 30, 45, .04);--shadow-md: 0 4px 14px rgba(20, 30, 45, .08);--radius: 12px;--radius-sm: 9px;--radius-pill: 999px;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.app-shell{min-height:100vh}.app-header{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:0 24px;min-height:62px;background:var(--surface);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:11px;color:var(--text);text-decoration:none}.brand:hover{text-decoration:none}.brand .logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#4b8bf5);color:#fff;display:grid;place-items:center;font-size:17px;box-shadow:var(--shadow-sm);flex:none}.brand .name{font-size:15px;font-weight:700;line-height:1.15}.brand .name small{display:block;font-weight:500;font-size:11.5px;color:var(--faint)}.app-nav{display:flex;gap:2px;flex-wrap:wrap}.app-nav a{color:var(--muted);text-decoration:none;font-weight:600;font-size:14px;padding:8px 13px;border-radius:var(--radius-sm)}.app-nav a:hover{background:var(--surface-2);color:var(--text);text-decoration:none}.app-nav a.active{background:var(--accent-weak);color:var(--accent-strong)}.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}.avatar{width:32px;height:32px;border-radius:50%;background:var(--accent-weak);color:var(--accent-strong);display:grid;place-items:center;font-weight:700;font-size:13px;flex:none}.who{line-height:1.2}.who b{font-size:13.5px}.who small{display:block;color:var(--faint);font-size:11.5px}.app-main{max-width:1080px;margin:0 auto;padding:28px 24px 56px}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}h1{font-size:22px;margin:0 0 16px;letter-spacing:-.01em}.page-head h1{margin:0}.page-head .sub{color:var(--muted);font-size:13.5px;margin-top:2px}h2{font-size:16px;margin:24px 0 12px}.muted{color:var(--muted);margin:0 0 16px}.access-home{max-width:560px;margin:40px auto}.share-panel{max-width:720px}.share-result,.confirm-box{border-top:1px solid var(--border);margin-top:20px;padding-top:18px}.share-result input{width:100%;margin:0 0 12px;padding:10px 12px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface-2);color:var(--text);font:inherit}.hint{color:var(--faint);font-weight:500;font-size:12px}.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 15px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .12s,border-color .12s}.btn:hover{background:var(--surface-2);border-color:var(--faint)}.btn:active{transform:translateY(.5px)}.btn:disabled{opacity:.55;cursor:default;transform:none}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-strong);border-color:var(--accent-strong)}.btn-sm{padding:6px 11px;font-size:13px}.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}.btn-ghost:hover{background:var(--surface-2);color:var(--text)}.btn-danger{color:var(--none-fg);border-color:var(--none-ring)}.btn-danger:hover{background:var(--none-bg);border-color:var(--none-fg)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:15px 16px;box-shadow:var(--shadow-sm)}.stat .k{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12.5px;font-weight:600}.stat .dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}.stat .dot.ok{background:var(--ok-fg)}.stat .dot.assigned{background:#b9c2cf}.stat .dot.borrowed{background:#a45a00}.stat .v{font-size:27px;font-weight:750;margin-top:6px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}.stat .v small{font-size:13px;font-weight:600;color:var(--faint)}.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}.search{position:relative;flex:1 1 260px;min-width:0}.search input{width:100%;padding:10px 12px 10px 38px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);font:inherit;font-size:14px;background:var(--surface);color:var(--text)}.search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-weak)}.search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--faint)}.chips{display:flex;gap:6px;flex-wrap:wrap}.chip{padding:7px 13px;border-radius:var(--radius-pill);border:1px solid var(--border-strong);background:var(--surface);color:var(--muted);font:inherit;font-size:13px;font-weight:600;cursor:pointer}.chip:hover{border-color:var(--faint);color:var(--text)}.chip.active{background:var(--accent);border-color:var(--accent);color:#fff}.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.device-table{width:100%;border-collapse:collapse;font-size:14px}.device-table thead th{position:sticky;top:0;background:var(--surface-2);text-align:left;font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;padding:11px 16px;border-bottom:1px solid var(--border);white-space:nowrap}.device-table th.num,.device-table td.num{text-align:right}.device-table td{padding:13px 16px;border-bottom:1px solid var(--border);vertical-align:middle}.device-table tbody tr:last-child td{border-bottom:none}.device-table tbody tr:hover{background:var(--surface-2)}.num-cell{font-variant-numeric:tabular-nums;color:var(--muted)}.sort-btn{background:none;border:none;padding:0;margin:0;font:inherit;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);cursor:pointer;display:inline-flex;align-items:center;gap:4px}.sort-btn:hover,.sort-btn .arr{color:var(--accent)}td.actions{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap}.dev-name{font-weight:650}.cat-tag{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--radius-pill);background:var(--surface-2);border:1px solid var(--border);font-size:12.5px;font-weight:600;color:var(--muted);white-space:nowrap}.cat-tag .ci{width:7px;height:7px;border-radius:50%;background:var(--accent)}.avail{display:flex;align-items:center;gap:10px;justify-content:flex-end}.bar{width:74px;height:7px;border-radius:999px;background:#eef1f5;overflow:hidden;display:flex;flex:none}.bar i{display:block;height:100%}.bar .b-assigned{background:#b9c2cf}.bar .b-borrowed{background:#a45a00;opacity:.8}.bar .b-free{background:var(--ok-fg)}.badge{display:inline-flex;align-items:center;justify-content:center;gap:5px;min-width:30px;padding:3px 11px;border-radius:var(--radius-pill);font-weight:750;font-size:13.5px;font-variant-numeric:tabular-nums}.badge-ok{background:var(--ok-bg);color:var(--ok-fg);box-shadow:inset 0 0 0 1px var(--ok-ring)}.badge-none{background:var(--none-bg);color:var(--none-fg);box-shadow:inset 0 0 0 1px var(--none-ring)}.badge-neutral{background:var(--surface-2);color:var(--muted);box-shadow:inset 0 0 0 1px var(--border)}.grid-2{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:start}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:18px;margin-bottom:20px}.card h2{margin-top:0}.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.card-head h2{margin:0}.card-head p{margin:3px 0 0;color:var(--muted);font-size:13px;font-weight:500}.stack-form{display:flex;flex-direction:column;gap:14px}.stack-form label{display:flex;flex-direction:column;gap:6px;font-weight:650;font-size:13px}.stack-form label.checkbox{flex-direction:row;align-items:center;gap:8px}.stack-form input[type=text],.stack-form input[type=password],.stack-form input[type=number],.stack-form input[type=date],.stack-form select{padding:10px 12px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);font:inherit;font-size:14px;background:var(--surface);color:var(--text);font-weight:400;width:100%}.stack-form input:focus,.stack-form select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-weak)}.stack-form input:disabled{background:var(--bg);color:var(--muted)}.form-row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}.form-row>label{flex:1 1 160px}.stepper{display:inline-flex;align-items:stretch;border:1px solid var(--border-strong);border-radius:var(--radius-sm);overflow:hidden;width:100%}.stepper button{width:42px;border:none;background:var(--surface-2);font-size:18px;color:var(--muted);cursor:pointer;flex:none}.stepper button:hover{background:var(--accent-weak);color:var(--accent-strong)}.stepper button:disabled{opacity:.5;cursor:default}.stepper input[type=number]{border:none!important;text-align:center;border-radius:0!important;box-shadow:none!important}.device-pick{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 12px;border:1px dashed var(--border-strong);border-radius:var(--radius-sm);background:var(--surface-2);font-size:13px;font-weight:600}.callout{display:flex;gap:9px;padding:10px 13px;border-radius:var(--radius-sm);font-size:13px}.callout-info{background:var(--accent-weak);color:var(--accent-strong)}.state-msg{color:var(--muted);padding:12px 0;text-align:center}.state-msg.error{color:var(--none-fg)}.brow{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}.brow:last-child{border-bottom:none}.brow .who2{flex:1 1 auto;min-width:0}.brow .who2 b{font-size:14px}.brow .who2 small{display:block;color:var(--muted);font-size:12.5px}.qtag{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-pill);padding:2px 10px;font-weight:700;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;flex:none}.return-form{display:flex;align-items:flex-end;gap:8px;flex-wrap:wrap}.return-form label{gap:3px;font-size:12px}.return-form input[type=date]{min-width:145px;padding:6px 8px;font-size:13px}.return-actions{display:flex;gap:4px}.return-error{width:100%;margin:0;color:var(--none-fg);font-size:12px}.avatar-muted{background:#eef1f5;color:var(--muted)}.empty{text-align:center;color:var(--faint);padding:40px 16px;font-size:14px}.empty .ic{font-size:30px;opacity:.5;display:block;margin-bottom:6px}.login-wrap{min-height:calc(100vh - 62px);display:grid;place-items:center;padding:24px}.login-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-md);padding:32px 30px}.login-card .brand{justify-content:center;margin-bottom:6px}.login-card h1{text-align:center;font-size:20px;margin:14px 0 4px}.login-card .sub{text-align:center;color:var(--muted);font-size:13.5px;margin-bottom:22px}.login-card .btn-primary{width:100%;justify-content:center;padding:11px;margin-top:4px}.login-back{text-align:center;margin-top:16px;font-size:13px}@media(max-width:820px){.stats{grid-template-columns:repeat(2,1fr)}.grid-2{grid-template-columns:1fr}.brow{align-items:flex-start;flex-wrap:wrap}.return-form{width:100%;padding-left:46px}}