:root{--bg: #f4f6f9;--panel: #ffffff;--panel-sunk: #f7f9fb;--border: #dfe4ea;--border-strong: #c6cede;--text: #16202e;--text-soft: #46536a;--muted: #6b7789;--accent: #1f5fa9;--accent-hover: #1a5192;--accent-soft: #e8f0f9;--accent-text: #ffffff;--ok: #1a7f4b;--ok-bg: #e6f4ec;--ok-border: #bcdfcb;--warn: #8a6100;--warn-bg: #fdf3dc;--warn-border: #ecd9a8;--danger: #a32020;--danger-bg: #fbeaea;--danger-border: #eec4c4;--info-bg: #e8f0f9;--radius-sm: 4px;--radius: 7px;--radius-lg: 11px;--radius-pill: 999px;--shadow-none: none;--shadow-sm: 0 1px 2px rgba(22, 32, 46, .05);--shadow: 0 1px 2px rgba(22, 32, 46, .05), 0 2px 8px rgba(22, 32, 46, .04);--shadow-md: 0 2px 4px rgba(22, 32, 46, .06), 0 6px 16px rgba(22, 32, 46, .07);--shadow-lg: 0 8px 20px rgba(22, 32, 46, .12), 0 24px 48px rgba(22, 32, 46, .14);--t-fast: .11s ease;--t: .16s ease;--focus-ring: 0 0 0 3px rgba(31, 95, 169, .28);color-scheme:light}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}*{box-sizing:border-box}body{margin:0;font:14px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}a{color:var(--accent)}a:hover{color:var(--accent-hover)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius-sm)}.app{display:flex;min-height:100vh}.sidebar{width:232px;flex-shrink:0;background:var(--panel);border-right:1px solid var(--border);padding:18px 0 12px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar h1{font-size:15px;margin:0 18px 3px;letter-spacing:-.01em}.sidebar .sub{font-size:12px;color:var(--muted);margin:0 18px 18px}.sidebar nav{display:flex;flex-direction:column;gap:1px;padding:0 10px}.sidebar nav a{padding:8px 12px;color:var(--text-soft);text-decoration:none;border-radius:var(--radius);border-left:3px solid transparent;transition:background var(--t-fast),color var(--t-fast)}.sidebar nav a:hover{background:var(--panel-sunk);color:var(--text)}.sidebar nav a.active{background:var(--accent-soft);border-left-color:var(--accent);color:var(--accent);font-weight:600}.sidebar .spacer{flex:1}.sidebar .footer{padding:12px 18px 0;border-top:1px solid var(--border);margin-top:12px;font-size:12px;color:var(--muted)}.main{flex:1;padding:26px 30px 60px;min-width:0}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:22px;flex-wrap:wrap}.page-head h2{margin:0 0 4px;font-size:21px;letter-spacing:-.015em}.page-head p{margin:0;color:var(--muted);max-width:70ch}@media(max-width:860px){.app{flex-direction:column}.sidebar{width:100%;height:auto;position:static;border-right:none;border-bottom:1px solid var(--border);padding-bottom:8px}.sidebar nav{flex-direction:row;flex-wrap:wrap}.sidebar nav a{border-left:none;border-bottom:3px solid transparent}.sidebar nav a.active{border-left:none;border-bottom-color:var(--accent)}.sidebar .spacer{display:none}.main{padding:18px 16px 48px}}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px;margin-bottom:16px;box-shadow:var(--shadow-sm)}.panel>h3{margin:0 0 14px;font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:600}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}.panel-head>h3{margin:0}.grid{display:grid;gap:16px}.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.grid.cols-4{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.stat{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 18px;box-shadow:var(--shadow-sm);transition:box-shadow var(--t),transform var(--t)}.stat:hover{box-shadow:var(--shadow);transform:translateY(-1px)}.stat .value{font-size:30px;font-weight:650;line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}.stat .label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.07em;font-weight:600;margin-top:6px}.stat .context{margin-top:10px;padding-top:10px;border-top:1px solid var(--border);display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.stat .context b{color:var(--text);font-variant-numeric:tabular-nums}.table-wrap{overflow-x:auto;border-radius:var(--radius);-webkit-overflow-scrolling:touch}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}th{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:600;white-space:nowrap;background:var(--panel-sunk)}th:first-child{border-top-left-radius:var(--radius)}th:last-child{border-top-right-radius:var(--radius)}tbody tr{transition:background var(--t-fast)}tbody tr:hover{background:var(--panel-sunk)}tbody tr:last-child td{border-bottom:none}td.num{text-align:right;font-variant-numeric:tabular-nums}.student-cell{display:flex;flex-direction:column;gap:2px;min-width:0}.student-cell .name{font-weight:600;color:var(--text)}.student-cell .ref{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:var(--muted)}.student-cell .unassigned{color:var(--muted);font-style:italic}.device-cell{display:flex;flex-direction:column;gap:2px;min-width:0}.device-cell .model{color:var(--text)}.device-cell .serial{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:var(--muted);word-break:break-all}.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;white-space:nowrap;border:1px solid transparent}.badge.ok{background:var(--ok-bg);color:var(--ok);border-color:var(--ok-border)}.badge.warn{background:var(--warn-bg);color:var(--warn);border-color:var(--warn-border)}.badge.danger{background:var(--danger-bg);color:var(--danger);border-color:var(--danger-border)}.badge.muted{background:var(--panel-sunk);color:var(--muted);border-color:var(--border)}.badge.info{background:var(--info-bg);color:var(--accent);border-color:#c5d8ee}.badge.dot:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}button,.button{font:inherit;font-weight:550;min-height:34px;padding:7px 14px;border-radius:var(--radius);border:1px solid var(--border-strong);background:var(--panel);color:var(--text);cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px;box-shadow:var(--shadow-sm);transition:background var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast),transform var(--t-fast)}button:hover:not(:disabled),.button:hover{background:var(--panel-sunk);border-color:var(--muted)}button:active:not(:disabled),.button:active{transform:translateY(1px);box-shadow:none}button:disabled,.button[aria-disabled=true]{opacity:.5;cursor:not-allowed;box-shadow:none}button:focus-visible,.button:focus-visible{outline:none;box-shadow:var(--focus-ring);border-color:var(--accent)}button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}button.primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}button.danger{background:var(--danger);border-color:var(--danger);color:#fff}button.danger:hover:not(:disabled){background:#8d1b1b;border-color:#8d1b1b}button.danger-outline{background:var(--panel);border-color:var(--danger-border);color:var(--danger)}button.danger-outline:hover:not(:disabled){background:var(--danger-bg);border-color:var(--danger)}button.ghost{background:transparent;border-color:transparent;box-shadow:none}button.ghost:hover:not(:disabled){background:var(--panel-sunk);border-color:var(--border)}button.small{min-height:28px;padding:4px 10px;font-size:13px}.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}input[type=text],input[type=password],input[type=email],input[type=number],input[type=search],select,textarea{font:inherit;padding:8px 11px;border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--panel);color:var(--text);width:100%;transition:border-color var(--t-fast),box-shadow var(--t-fast)}input:hover:not(:disabled),select:hover:not(:disabled),textarea:hover:not(:disabled){border-color:var(--muted)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:var(--focus-ring)}input:disabled,select:disabled,textarea:disabled{background:var(--panel-sunk);color:var(--muted);cursor:not-allowed}input[aria-invalid=true],.field.invalid input,.field.invalid select{border-color:var(--danger)}input[aria-invalid=true]:focus{box-shadow:0 0 0 3px #a3202038}textarea{min-height:84px;resize:vertical}label{display:block;margin-bottom:14px}label>span{display:block;font-size:13px;font-weight:600;margin-bottom:5px}label.inline{display:flex;align-items:flex-start;gap:9px;margin-bottom:9px;font-weight:400}label.inline input{width:auto;margin-top:3px;flex:none}label.inline>span{font-weight:400;margin:0}.field-hint{font-size:12px;color:var(--muted);margin-top:5px;font-weight:400}.field-error{font-size:12px;color:var(--danger);margin-top:5px;font-weight:600}fieldset{border:none;margin:0 0 18px;padding:0}fieldset>legend{font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:600;margin-bottom:10px;padding:0}.section-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;padding-bottom:8px;margin:24px 0 12px;border-bottom:1px solid var(--border)}.section-head:first-child{margin-top:0}.section-head h4{margin:0;font-size:15px;letter-spacing:-.01em}.section-head .hint{margin:0;font-size:12px;color:var(--muted);flex:1 1 100%}.api-tag{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;color:var(--muted);background:var(--panel-sunk);border:1px solid var(--border);padding:1px 6px;border-radius:var(--radius-sm)}.notice{padding:11px 13px;border-radius:var(--radius);margin-bottom:12px;border:1px solid}.notice.error{background:var(--danger-bg);border-color:var(--danger-border);color:var(--danger)}.notice.warning{background:var(--warn-bg);border-color:var(--warn-border);color:var(--warn)}.notice.success{background:var(--ok-bg);border-color:var(--ok-border);color:var(--ok)}.notice.info{background:var(--info-bg);border-color:#c5d8ee;color:var(--accent)}.notice ul{margin:6px 0 0;padding-left:20px}.muted{color:var(--muted)}.small{font-size:12px}.empty{padding:34px 20px;text-align:center;color:var(--muted)}.empty .empty-title{font-weight:600;color:var(--text-soft);margin-bottom:4px}.loading-block{padding:8px 0}.skeleton{background:linear-gradient(90deg,var(--panel-sunk) 25%,#eef1f5 50%,var(--panel-sunk) 75%);background-size:200% 100%;animation:skeleton 1.3s ease-in-out infinite;border-radius:var(--radius-sm);height:13px;margin-bottom:9px}.skeleton:last-child{margin-bottom:0;width:60%}@keyframes skeleton{0%{background-position:200% 0}to{background-position:-200% 0}}.modal-backdrop{position:fixed;inset:0;z-index:50;background:#16202e6b;display:flex;align-items:center;justify-content:center;padding:20px}.modal{background:var(--panel);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:460px;max-height:calc(100vh - 40px);overflow-y:auto;padding:22px}.modal h3{margin:0 0 6px;font-size:17px;letter-spacing:-.01em}.modal .modal-sub{margin:0 0 16px;color:var(--muted);font-size:13px}.modal .modal-actions{display:flex;gap:9px;justify-content:flex-end;margin-top:20px;flex-wrap:wrap}.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.login-card{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-md)}.login-card h1{margin:0 0 4px;font-size:19px;letter-spacing:-.015em}.login-card p.sub{margin:0 0 22px;color:var(--muted);font-size:13px}.kv{display:grid;grid-template-columns:minmax(130px,max-content) 1fr;gap:8px 18px}.kv dt{color:var(--muted);font-size:13px}.kv dd{margin:0;word-break:break-word}@media(max-width:560px){.kv{grid-template-columns:1fr;gap:2px 0}.kv dd{margin-bottom:8px}}.qr{display:block;max-width:280px;width:100%;border:1px solid var(--border);border-radius:var(--radius);background:#fff}pre.payload{background:#16202e;color:#d7e3f0;padding:13px;border-radius:var(--radius);overflow-x:auto;font-size:12px;margin:0}.timeline{list-style:none;padding:0;margin:0}.timeline li{padding:9px 0;border-bottom:1px solid var(--border);display:flex;gap:14px;align-items:baseline}.timeline li:last-child{border-bottom:none}.timeline time{color:var(--muted);font-size:12px;white-space:nowrap;font-variant-numeric:tabular-nums}.audit-fields{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;margin:7px 0 0;font-size:.9em}.audit-fields dt{white-space:nowrap;color:var(--muted)}.audit-fields dd{margin:0;word-break:break-word}.audit-subject{display:inline-flex;align-items:baseline;gap:7px;flex-wrap:wrap}.audit-subject .name{font-weight:600}.audit-subject .ref{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;color:var(--muted)}.badge[data-severity=warning]{background:var(--warn-bg);color:var(--warn);border-color:var(--warn-border)}.badge[data-severity=high]{background:#f8e4e1;color:#a6342a;border-color:#eec4c4}.badge[data-severity=critical]{background:#a6342a;color:#fff;border-color:#a6342a}.alert-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.alert-card{border:1px solid var(--border);border-left:3px solid var(--border-strong);border-radius:var(--radius);background:var(--panel);padding:12px 14px;display:flex;gap:14px;align-items:flex-start;flex-wrap:wrap;transition:box-shadow var(--t),border-color var(--t)}.alert-card:hover{box-shadow:var(--shadow)}.alert-card[data-severity=warning]{border-left-color:var(--warn)}.alert-card[data-severity=high]{border-left-color:#a6342a}.alert-card[data-severity=critical]{border-left-color:var(--danger)}.alert-card[data-severity=info]{border-left-color:var(--ok)}.alert-card .alert-body{flex:1 1 260px;min-width:0}.alert-card .alert-title{font-weight:600;margin-bottom:3px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.alert-card .alert-meta{font-size:12px;color:var(--muted);margin-top:6px;display:flex;gap:12px;flex-wrap:wrap}.alert-card .alert-actions{flex:none;display:flex;gap:8px;align-items:center}.plain-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}.plain-list li{border-bottom:1px solid var(--border);padding-bottom:12px}.plain-list li:last-child{border-bottom:none;padding-bottom:0}.assignment{display:flex;gap:22px;flex-wrap:wrap;align-items:flex-start}.assignment .assignment-main{flex:1 1 240px;min-width:0}.assignment .student-name{font-size:21px;font-weight:650;letter-spacing:-.015em;margin:0 0 2px}.assignment .student-ref{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--muted);font-size:14px}.assignment .assignment-meta{margin-top:14px}.enrol-credentials{display:grid;grid-template-columns:auto 1fr;gap:7px 15px;margin:14px 0 0;align-items:baseline;font-size:.92em}.enrol-credentials dt{white-space:nowrap;color:var(--muted)}.enrol-credentials dd{margin:0;display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}.enrol-credentials code{word-break:break-all}.health-grade{display:inline-block;font-weight:700;letter-spacing:.06em;padding:6px 14px;border-radius:var(--radius-sm);margin-bottom:10px}.health-healthy{background:var(--ok-bg);color:#2e7d5b}.health-warning{background:var(--warn-bg);color:#9a6206}.health-critical{background:#a6342a;color:#fff}.security-controls{margin:0}.security-row{display:grid;grid-template-columns:minmax(180px,260px) 1fr;gap:6px 16px;padding:11px 0;border-bottom:1px solid var(--border);align-items:baseline}.security-row:last-child{border-bottom:none}.security-row dt{font-weight:600}.security-row dd{margin:0;display:flex;flex-direction:column;gap:4px;align-items:flex-start}.security-row dd .badge{margin-right:6px}.security-row[data-limitation=true]{background:#fdf2f0}.badge[data-status=not_controllable_by_dpc]{background:#a6342a;color:#fff;border-color:#a6342a}.badge[data-status=oem_dependent],.badge[data-status=google_enterprise_dependent]{background:#ebe7f4;color:#5b4e86;border-color:#d8d1ea}.badge[data-status=unsupported_android_version],.badge[data-status=requires_device_owner]{background:#f8e4e1;color:#a6342a;border-color:#eec4c4}.badge[data-status=partially_supported]{background:var(--warn-bg);color:#9a6206;border-color:var(--warn-border)}.badge[data-state=enforced],.badge[data-grade=healthy]{background:var(--ok-bg);color:#2e7d5b;border-color:var(--ok-border)}.badge[data-grade=warning]{background:var(--warn-bg);color:#9a6206;border-color:var(--warn-border)}.badge[data-grade=critical]{background:#a6342a;color:#fff;border-color:#a6342a}@media(max-width:640px){.security-row{grid-template-columns:1fr}}