[hidden]{display:none!important}
/* Layout: HRAV admin-app shell, matching HRAV Plugin Keygen and Proxy Manager. Navy 240px sidebar + light #fafafa workspace with page headers, cards and data tables; exams run full-width under a navy exam bar. Light-only by design, like the keygen. */
:root{
  --hr-sidebar:#1a2030;--hr-sidebar-hover:#242b3d;--hr-sidebar-active:#2d3548;
  --hr-sidebar-text:#e5e7eb;--hr-sidebar-muted:#9ca3af;--hr-sidebar-dim:#6b7280;
  --hr-bg:#fafafa;--hr-surface:#ffffff;--hr-subtle:#f9fafb;--hr-hover:#f3f4f6;
  --hr-border:#e5e7eb;--hr-border-strong:#d1d5db;--hr-border-emphasis:#9ca3af;
  --hr-text:#111827;--hr-text-muted:#6b7280;--hr-text-dim:#9ca3af;
  --hr-success:#059669;--hr-success-bg:#d1fae5;--hr-success-ink:#065f46;
  --hr-danger:#dc2626;--hr-danger-bg:#fee2e2;--hr-danger-ink:#991b1b;
  --hr-warning:#d97706;--hr-warning-bg:#fef3c7;--hr-warning-ink:#92400e;
  --hr-info:#2563eb;--hr-info-bg:#dbeafe;--hr-info-ink:#1e40af;
  --hr-purple:#7c3aed;--hr-purple-bg:#ede9fe;--hr-purple-ink:#5b21b6;
  --d1:#2563eb;--d2:#7c3aed;--d3:#0891b2;--d4:#db2777;--d5:#d97706;--d6:#4b5563;
  --f-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --f-mono:ui-monospace,"SF Mono",Menlo,Monaco,Consolas,monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{height:100%}
body{font-family:var(--f-body);background:var(--hr-bg);color:var(--hr-text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3{margin:0;font-weight:600;line-height:1.25;text-wrap:balance}
p{margin:0}
code{font-family:var(--f-mono);font-size:12px;background:var(--hr-hover);padding:1px 5px;border-radius:4px}
.icon{width:16px;height:16px;flex-shrink:0;display:inline-block;vertical-align:-3px}
.mono{font-family:var(--f-mono);font-size:12px;font-variant-numeric:tabular-nums}
.muted{color:var(--hr-text-muted)}
.eyebrow{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--hr-text-muted)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--hr-info);outline-offset:2px}

/* Buttons and inputs (keygen) */
.btn{font-family:inherit;font-size:13px;padding:7px 14px;border-radius:6px;border:1px solid var(--hr-border-strong);background:var(--hr-surface);color:var(--hr-text);cursor:pointer;transition:all .1s;line-height:1.3;display:inline-flex;align-items:center;justify-content:center;gap:6px;text-decoration:none;white-space:nowrap}
.btn:hover:not(:disabled){background:var(--hr-hover);border-color:var(--hr-border-emphasis)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.primary{background:var(--hr-sidebar);color:#fff;border-color:var(--hr-sidebar)}
.btn.primary:hover:not(:disabled){background:#0f1521;border-color:#0f1521}
.btn.danger{color:var(--hr-danger);border-color:var(--hr-danger)}
.btn.danger:hover:not(:disabled){background:var(--hr-danger-bg);border-color:var(--hr-danger)}
.btn.ghost{border-color:transparent;background:transparent;padding:5px 8px}
.btn.ghost:hover:not(:disabled){background:var(--hr-hover);border-color:transparent}
.btn.ghost.danger{color:var(--hr-danger)}
.btn.sm{padding:4px 10px;font-size:12px}
.btn.ghost.sm{padding:4px 8px}
.btn.flag[aria-pressed="true"]{color:var(--hr-warning);border-color:var(--hr-warning);background:var(--hr-warning-bg)}
.btn[aria-pressed="true"].ghost{background:var(--hr-hover)}
kbd{font-family:var(--f-mono);font-size:10.5px;border:1px solid var(--hr-border-strong);border-bottom-width:2px;border-radius:4px;padding:0 4px;color:var(--hr-text-muted);background:var(--hr-subtle);line-height:1.5}
.btn.primary kbd{background:transparent;color:inherit;border-color:rgba(255,255,255,.4)}
input[type=number],input[type=text],input[type=search],select,textarea{font-size:13px;padding:8px 10px;border-radius:6px;border:1px solid var(--hr-border-strong);background:var(--hr-surface);color:var(--hr-text);width:100%;min-width:0;line-height:1.4}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--hr-info);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
textarea{resize:vertical;min-height:72px}
label.lbl,.lbl{display:block;font-size:12px;color:var(--hr-text-muted);margin-bottom:4px;font-weight:500}
.field{display:flex;flex-direction:column;min-width:0}
.field-hint,.hint-text{font-size:12px;color:var(--hr-text-muted)}
.stack{display:flex;flex-direction:column;gap:16px}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.check{display:flex;align-items:center;gap:8px;font-size:13px;cursor:pointer;padding:4px 0}
.check input{width:15px;height:15px;accent-color:var(--hr-sidebar)}

/* Badges and chips */
.badge,.chip,.verdict-pill{display:inline-flex;align-items:center;gap:5px;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:500;white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis;border:1px solid transparent;line-height:1.5}
.chip{background:var(--hr-hover);color:#374151}
.chip .dot{width:7px;height:7px;border-radius:2px;flex:none}
button.chip{cursor:pointer;font-size:12px;padding:4px 10px;border-color:var(--hr-border-strong);background:var(--hr-surface)}
button.chip:hover{border-color:var(--hr-border-emphasis)}
button.chip[aria-pressed="true"]{background:var(--hr-info-bg);border-color:var(--hr-info);color:var(--hr-info-ink)}
.chip.flagged{background:var(--hr-warning-bg);color:var(--hr-warning-ink)}
.verdict-pill.pass,.badge.ok{background:var(--hr-success-bg);color:var(--hr-success-ink)}
.verdict-pill.fail,.badge.danger{background:var(--hr-danger-bg);color:var(--hr-danger-ink)}
.badge.info{background:var(--hr-info-bg);color:var(--hr-info-ink)}
.badge.muted{background:var(--hr-hover);color:#4b5563}
.badge.purple{background:var(--hr-purple-bg);color:var(--hr-purple-ink)}

/* Shell */
.app-shell{display:grid;grid-template-columns:240px minmax(0,1fr);min-height:100%}
.sidebar{background:var(--hr-sidebar);color:var(--hr-sidebar-text);padding:16px 12px;display:flex;flex-direction:column;gap:2px;position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar-brand{padding:0 8px 16px;margin-bottom:12px;border-bottom:1px solid rgba(255,255,255,.08)}
.wordmark{display:block;color:#fff;font-size:17px;font-weight:700;letter-spacing:.01em;line-height:1.1}
.wordmark span{display:block;font-size:10px;font-weight:600;letter-spacing:.32em;text-transform:uppercase;color:var(--hr-sidebar-muted);margin-top:3px}
.sidebar-product{font-size:11px;color:var(--hr-sidebar-muted);margin-top:8px;letter-spacing:.01em}
.sidebar-section{font-size:10px;color:var(--hr-sidebar-dim);padding:10px 8px 4px;text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.sidebar-link{display:flex;align-items:center;gap:10px;padding:7px 8px;border-radius:6px;color:var(--hr-sidebar-muted);font-size:13px;cursor:pointer;border:none;background:transparent;width:100%;text-align:left;line-height:1.3}
.sidebar-link:hover{background:var(--hr-sidebar-hover);color:#fff}
.sidebar-link.active{background:var(--hr-sidebar-active);color:#fff}
.sidebar-badge{margin-left:auto;background:var(--hr-purple-bg);color:var(--hr-purple-ink);font-size:10px;font-weight:600;padding:1px 6px;border-radius:10px;font-variant-numeric:tabular-nums}
.sidebar-badge.live{background:var(--hr-success-bg);color:var(--hr-success-ink)}
.sidebar-user{margin-top:auto;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);display:flex;align-items:center;gap:10px;font-size:12px}
.avatar{width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.1);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.avatar.cloud{color:#6ee7b7}
.sidebar-user-info{flex:1;min-width:0}
.sidebar-user-name{color:#fff;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-user-role{color:var(--hr-sidebar-dim);font-size:11px}
.sidebar .btn.ghost{color:var(--hr-sidebar-dim)}
.sidebar .btn.ghost:hover,.sidebar .btn.ghost[aria-pressed="true"]{background:var(--hr-sidebar-hover);color:#fff}
.topbar{display:none}
.main{padding:28px 36px 60px;max-width:1280px;width:100%;min-width:0}
.app-shell.focus{display:block}
.app-shell.focus #side-host{display:none}
.app-shell.focus .main{padding:0;max-width:none}
.app-shell.focus .topbar{display:none}

.page-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:24px;gap:16px;flex-wrap:wrap}
.page-title{font-size:22px;font-weight:600;margin:0 0 4px}
.page-subtitle{font-size:13px;color:var(--hr-text-muted);margin:0;max-width:72ch}
.page-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.back{margin:0 0 6px -8px}
.wrap{min-width:0}

.panel{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:20px;min-width:0}
.panel h2{font-size:15px}
.panel-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.section-title{font-size:12px;font-weight:600;color:var(--hr-text-muted);text-transform:uppercase;letter-spacing:.04em;margin:0 0 12px;padding-bottom:8px;border-bottom:1px solid var(--hr-border)}
.empty{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:40px 20px;text-align:center;color:var(--hr-text-muted);font-size:13px}
.info-box,.warning-box,.success-box,.error-box{border-radius:6px;padding:10px 12px;font-size:13px;line-height:1.5;display:flex;gap:10px;align-items:flex-start}
.info-box{background:var(--hr-info-bg);border:1px solid #bfdbfe;color:var(--hr-info-ink)}
.warning-box{background:#fffbeb;border:1px solid #fde68a;color:var(--hr-warning-ink)}
.success-box{background:#ecfdf5;border:1px solid #a7f3d0;color:var(--hr-success-ink)}
.error-box{background:#fef2f2;border:1px solid #fecaca;color:var(--hr-danger-ink)}
.info-box .icon,.warning-box .icon,.success-box .icon,.error-box .icon{margin-top:2px}

/* Stat tiles + tables (keygen) */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:20px}
.stat{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:14px 16px}
.stat-label{font-size:12px;color:var(--hr-text-muted);margin-bottom:4px}
.stat-value{font-size:22px;font-weight:600;line-height:1.2;font-variant-numeric:tabular-nums}
.stat-value small{font-size:13px;font-weight:500;color:var(--hr-text-muted)}
.stat-value.success{color:var(--hr-success)}.stat-value.danger{color:var(--hr-danger)}.stat-value.warning{color:var(--hr-warning)}.stat-value.info{color:var(--hr-info)}.stat-value.purple{color:var(--hr-purple)}
.data-table-wrap{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;overflow-x:auto;margin-bottom:16px}
.data-table{width:100%;border-collapse:collapse;font-size:13px}
.data-table thead th{background:var(--hr-subtle);text-align:left;padding:9px 14px;font-size:11px;font-weight:600;color:var(--hr-text-muted);text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--hr-border);white-space:nowrap}
.data-table tbody tr{border-bottom:1px solid var(--hr-border)}
.data-table tbody tr:last-child{border-bottom:none}
.data-table tbody tr:hover{background:var(--hr-subtle)}
.data-table td{padding:11px 14px;vertical-align:middle}
.data-table td.num{font-variant-numeric:tabular-nums}
.data-table td.actions{text-align:right;white-space:nowrap}
.cell-sub{font-size:12px;color:var(--hr-text-muted);margin-top:2px;max-width:60ch}
.search-wrap{position:relative;display:inline-block;min-width:min(260px,100%)}
.search-wrap input{padding-left:32px}
.search-wrap .icon{position:absolute;left:9px;top:50%;transform:translateY(-50%);color:var(--hr-text-dim);width:15px;height:15px}

/* Start session */
.home-card{max-width:880px}
.modes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.mode{text-align:left;border:1px solid var(--hr-border-strong);background:var(--hr-surface);border-radius:8px;padding:12px;cursor:pointer;display:flex;flex-direction:column;gap:4px;min-width:0;transition:all .1s}
.mode:hover{border-color:var(--hr-border-emphasis)}
.mode .mi{display:flex;align-items:center;gap:7px;font-weight:600;font-size:13px}
.mode span.d{font-size:12px;color:var(--hr-text-muted);line-height:1.4}
.mode[aria-pressed="true"]{border-color:var(--hr-info);background:var(--hr-info-bg);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.mode[aria-pressed="true"] .mi{color:var(--hr-info-ink)}
.banks-pick{display:flex;flex-direction:column;gap:0}
.chips,.presets,.filters{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.start-foot{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-top:16px;border-top:1px solid var(--hr-border)}
.resume{justify-content:space-between;align-items:center;flex-wrap:wrap;margin-bottom:16px;max-width:880px}
.resume b{display:block}
.drop{border:1.5px dashed var(--hr-border-strong);border-radius:8px;padding:18px;text-align:center;font-size:13px;color:var(--hr-text-muted);background:var(--hr-surface);transition:all .15s;margin-bottom:16px}
.drop.over{border-color:var(--hr-info);background:var(--hr-info-bg)}
.drop label{color:var(--hr-info);text-decoration:underline;cursor:pointer}
details.fold{border-top:1px solid var(--hr-border);padding-top:12px;margin-top:12px}
details.fold:first-child{border-top:0;padding-top:0;margin-top:0}
details.fold summary{cursor:pointer;font-weight:600;font-size:13px}
pre.code{background:#f8fafc;border:1px solid var(--hr-border);border-radius:6px;padding:12px;overflow-x:auto;font-family:var(--f-mono);font-size:11.5px;line-height:1.6;margin:10px 0 0;white-space:pre}

/* Exam console */
.exam-bar{background:var(--hr-sidebar);color:var(--hr-sidebar-text);position:sticky;top:0;z-index:30}
.exam-bar-in{max-width:1280px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.eb-brand{font-weight:700;color:#fff;font-size:14px;padding-right:12px;border-right:1px solid rgba(255,255,255,.12);margin-right:2px;white-space:nowrap}
.eb-brand span{font-weight:400;color:var(--hr-sidebar-muted)}
.mode-badge{display:inline-flex;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600;background:var(--hr-info-bg);color:var(--hr-info-ink)}
.qcount{font-size:13px;color:var(--hr-sidebar-muted);font-variant-numeric:tabular-nums}
.timer{font-family:var(--f-mono);font-size:17px;font-weight:600;font-variant-numeric:tabular-nums;color:#fff;background:rgba(255,255,255,.08);padding:3px 10px;border-radius:6px}
.timer.low{background:var(--hr-danger);color:#fff}
.timer.paused{opacity:.5}
.sess-tools{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
.exam-bar .btn.ghost{color:var(--hr-sidebar-muted)}
.exam-bar .btn.ghost:hover,.exam-bar .btn.ghost[aria-pressed="true"]{background:var(--hr-sidebar-hover);color:#fff}
.exam-bar .btn:not(.ghost){background:transparent;color:#fff;border-color:rgba(255,255,255,.25)}
.exam-bar .btn:not(.ghost):hover{background:var(--hr-sidebar-hover)}
.exam-bar .check{color:var(--hr-sidebar-text)}
.sess{max-width:1280px;margin:0 auto;padding-inline:20px;padding-block:16px 120px}
.meter{display:flex;gap:2px;height:14px;margin-bottom:16px;align-items:stretch;padding-top:5px;box-sizing:content-box}
.meter button{flex:1 1 0;min-width:2px;border:0;padding:0;border-radius:2px;background:var(--hr-border);cursor:pointer;position:relative}
.meter button.ans{background:var(--hr-border-emphasis)}
.meter button.ok{background:var(--hr-success)}
.meter button.no{background:var(--hr-danger)}
.meter button.flg::after{content:"";position:absolute;left:0;right:0;top:-5px;height:3px;border-radius:2px;background:var(--hr-warning)}
.meter button.cur{box-shadow:0 0 0 2px var(--hr-bg),0 0 0 3.5px var(--hr-sidebar)}
.sess-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}
.sess-grid.with-nav{grid-template-columns:minmax(0,1fr) 250px}
.qpane{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:clamp(18px,3vw,30px);min-width:0}
.qmeta{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.qmeta .eyebrow{margin-right:4px}
.stem{font-weight:500;font-size:clamp(16px,1.8vw,18px);line-height:1.55;max-width:75ch;white-space:pre-wrap}
.stem-img{margin-top:12px;border-radius:6px;border:1px solid var(--hr-border)}
.multi-note{margin-top:8px;font-size:12px;color:var(--hr-warning-ink);font-weight:600}
.choices{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:8px;max-width:80ch}
.choice{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:0 4px;align-items:stretch}
.choice-btn{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;padding:11px 14px;border:1px solid var(--hr-border-strong);border-radius:6px;background:var(--hr-surface);cursor:pointer;min-width:0;transition:all .1s}
.choice-btn:hover:not(:disabled){border-color:var(--hr-border-emphasis);background:var(--hr-subtle)}
.choice-btn:disabled{cursor:default}
.letter{font-family:var(--f-mono);font-weight:600;font-size:12px;width:24px;height:24px;flex:none;border-radius:5px;border:1px solid var(--hr-border-strong);display:grid;place-items:center;background:var(--hr-subtle);color:#374151}
.ctext{padding-top:1px;min-width:0;overflow-wrap:anywhere;flex:1;font-size:14px}
.mark{font-size:11px;font-weight:600;padding:2px 7px;border-radius:4px;align-self:center;flex:none}
.choice.sel .choice-btn{border-color:var(--hr-info);background:var(--hr-info-bg);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.choice.sel .letter{background:var(--hr-info);color:#fff;border-color:var(--hr-info)}
.choice.struck .ctext{text-decoration:line-through;color:var(--hr-text-dim)}
.choice.struck .letter{opacity:.45}
.choice.right .choice-btn{border-color:var(--hr-success);background:#ecfdf5}
.choice.right .letter{background:var(--hr-success);color:#fff;border-color:var(--hr-success)}
.choice.right .mark{background:var(--hr-success-bg);color:var(--hr-success-ink)}
.choice.wrong .choice-btn{border-color:var(--hr-danger);background:#fef2f2}
.choice.wrong .letter{background:var(--hr-danger);color:#fff;border-color:var(--hr-danger)}
.choice.wrong .mark{background:var(--hr-danger-bg);color:var(--hr-danger-ink)}
.strike{border:0;background:none;color:var(--hr-text-dim);cursor:pointer;padding:0 8px;border-radius:6px}
.strike:hover{background:var(--hr-hover);color:var(--hr-text)}
.strike[aria-pressed="true"]{color:var(--hr-text)}
.cnote{grid-column:1/-1;font-size:12.5px;color:var(--hr-text-muted);padding:6px 4px 2px 50px}
.box{margin-top:18px;border-radius:6px;padding:12px 14px;max-width:80ch;font-size:13.5px}
.box.hint{background:#fffbeb;border:1px solid #fde68a;color:var(--hr-warning-ink)}
.box.hint .eyebrow{color:var(--hr-warning-ink)}
.box.fb{border:1px solid var(--hr-border);background:var(--hr-subtle)}
.box.fb.good{background:#ecfdf5;border-color:#a7f3d0}
.box.fb.bad{background:#fef2f2;border-color:#fecaca}
.box p{margin:0 0 6px}
.verdict{font-weight:600;font-size:14px;margin-bottom:6px}
.box.good .verdict{color:var(--hr-success-ink)}
.box.bad .verdict{color:var(--hr-danger-ink)}
.ref{font-family:var(--f-mono);font-size:11.5px;color:var(--hr-text-muted);margin-top:8px}
.sess-foot{position:fixed;left:0;right:0;bottom:0;z-index:25;background:var(--hr-surface);border-top:1px solid var(--hr-border);padding:10px 20px calc(10px + env(safe-area-inset-bottom,0px));box-shadow:0 -6px 20px rgba(0,0,0,.04)}
.sess-foot-in{max-width:1240px;margin:0 auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.sess-foot .spacer{flex:1}
.navp{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:14px;align-self:start;position:sticky;top:76px;max-height:calc(100vh - 180px);overflow:auto}
.navp b{font-size:13px}
.navgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(34px,1fr));gap:4px;margin-top:10px}
.navgrid button{font-family:var(--f-mono);font-size:11.5px;height:30px;border:1px solid var(--hr-border-strong);border-radius:5px;background:var(--hr-surface);cursor:pointer;position:relative;color:#374151}
.navgrid button:hover{border-color:var(--hr-border-emphasis)}
.navgrid button.ans{background:var(--hr-hover);border-color:var(--hr-border-emphasis)}
.navgrid button.ok{background:var(--hr-success-bg);border-color:var(--hr-success);color:var(--hr-success-ink)}
.navgrid button.no{background:var(--hr-danger-bg);border-color:var(--hr-danger);color:var(--hr-danger-ink)}
.navgrid button.cur{outline:2px solid var(--hr-sidebar);outline-offset:1px}
.navgrid button.flg::after{content:"";position:absolute;top:2px;right:2px;width:6px;height:6px;border-radius:50%;background:var(--hr-warning)}
.legend{display:flex;flex-wrap:wrap;gap:10px;font-size:11px;color:var(--hr-text-muted);margin-top:10px}
.legend span{display:inline-flex;align-items:center;gap:5px}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block;border:1px solid var(--hr-border-strong)}
.lg-ans{background:var(--hr-hover);border-color:var(--hr-border-emphasis)!important}
.lg-flag{background:var(--hr-warning);border-color:var(--hr-warning)!important}
.lg-ok{background:var(--hr-success-bg);border-color:var(--hr-success)!important}
.lg-no{background:var(--hr-danger-bg);border-color:var(--hr-danger)!important}

/* AI */
.ai{margin-top:12px;border-top:1px dashed var(--hr-border-strong);padding-top:12px}
.ai-out{font-size:13.5px;max-width:75ch;color:var(--hr-text)}
.ai-out p{margin:0 0 8px}
.ai-out ul{margin:0 0 8px;padding-left:20px}
.ai-q{font-size:13px;color:var(--hr-text-muted);margin:10px 0 6px;font-style:italic}
.ai-ask{display:flex;gap:6px;margin-top:8px}
.ai-ask input{background:var(--hr-surface)}
.thinking{display:inline-flex;align-items:center;gap:8px;color:var(--hr-text-muted);font-size:13px}
.thinking i{width:6px;height:6px;border-radius:50%;background:var(--hr-info);animation:pulse 1s ease-in-out infinite}
@keyframes pulse{50%{opacity:.25}}

/* Results */
.res-head{display:grid;grid-template-columns:auto minmax(0,1fr);gap:28px;align-items:center}
.score{font-weight:700;font-size:clamp(48px,7vw,64px);line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:var(--hr-sidebar)}
.score small{font-size:.42em;color:var(--hr-text-muted);font-weight:600}
.kv{display:flex;gap:24px;flex-wrap:wrap;margin-top:14px}
.kv div{display:flex;flex-direction:column}
.kv b{font-size:17px;font-weight:600;font-variant-numeric:tabular-nums}
.kv span{font-size:12px;color:var(--hr-text-muted)}
.dbars{display:flex;flex-direction:column;gap:12px}
.dbar{display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr) 110px;gap:14px;align-items:center}
.dbar .nm{font-size:13px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.track{height:8px;background:var(--hr-hover);border-radius:4px;position:relative}
.fill{height:100%;border-radius:4px}
.tgt{position:absolute;top:-4px;bottom:-4px;width:2px;background:var(--hr-sidebar);opacity:.6}
.dbar .v{font-size:12px;text-align:right;font-variant-numeric:tabular-nums;color:var(--hr-text-muted)}
.rlist{display:flex;flex-direction:column;gap:6px}
.ritem{border:1px solid var(--hr-border);border-radius:6px;background:var(--hr-surface)}
.ritem[open]{border-color:var(--hr-border-strong)}
.ritem summary{display:grid;grid-template-columns:40px 14px minmax(0,1fr) auto;gap:10px;align-items:center;padding:10px 12px;cursor:pointer;list-style:none}
.ritem summary:hover{background:var(--hr-subtle)}
.ritem summary::-webkit-details-marker{display:none}
.ritem .num{font-family:var(--f-mono);font-size:11.5px;color:var(--hr-text-muted)}
.ritem .st{width:10px;height:10px;border-radius:50%}
.ritem .st.ok{background:var(--hr-success)}.ritem .st.no{background:var(--hr-danger)}.ritem .st.skip{background:var(--hr-border-strong)}
.ritem .txt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}
.ritem .body{padding:4px 14px 16px;border-top:1px solid var(--hr-border)}
.ritem .body .stem{font-size:15px;margin-top:10px}
.ritem .body .choices{margin-top:10px}

/* Flashcards */
.cards-wrap{max-width:760px;margin:0 auto;padding-inline:20px;padding-block:20px 60px}
.fc{perspective:1600px;margin-top:14px}
.fc-in{position:relative;min-height:320px;transition:transform .45s cubic-bezier(.2,.7,.2,1);transform-style:preserve-3d;cursor:pointer}
.fc.flipped .fc-in{transform:rotateY(180deg)}
.fc-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:clamp(20px,4vw,32px);display:flex;flex-direction:column;gap:12px;overflow:auto;box-shadow:0 10px 30px rgba(17,24,39,.06)}
.fc-back{transform:rotateY(180deg);border-top:3px solid var(--hr-info)}
.fc-front .fc-text{font-size:clamp(17px,2.2vw,20px);font-weight:500;white-space:pre-wrap}
.fc-back .fc-ans{font-weight:600;font-size:clamp(17px,2.1vw,20px);white-space:pre-wrap}
.fc-ex{font-size:13.5px;color:var(--hr-text-muted);white-space:pre-wrap}
.fc-foot{margin-top:auto;display:flex;justify-content:space-between;gap:10px;font-size:12px;color:var(--hr-text-dim)}
.fc-choices{margin:0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:4px;font-size:14px}
.fc-acts{display:flex;gap:10px;justify-content:center;margin-top:18px;flex-wrap:wrap}
.fc-acts .btn{min-width:130px;padding:10px 16px}
.fc-prog{height:4px;border-radius:2px;background:var(--hr-border);overflow:hidden}
.fc-prog div{height:100%;background:var(--hr-info)}

/* Browse + generator lists */
.qlist{display:flex;flex-direction:column;gap:8px}
.qrow{border:1px solid var(--hr-border);border-radius:8px;padding:12px 14px;background:var(--hr-surface)}
.qrow .q{font-weight:500}
.qrow ol{margin:8px 0 0;padding-left:22px;font-size:13px}
.qrow li.c{color:var(--hr-success);font-weight:600}
.qrow .qm{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:8px;font-size:12px;color:var(--hr-text-muted)}

/* Calculator */
.calc{position:fixed;right:20px;bottom:84px;z-index:40;width:290px;max-width:calc(100vw - 32px);background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;box-shadow:0 20px 50px rgba(0,0,0,.15);overflow:hidden}
.calc-head{display:flex;justify-content:space-between;align-items:center;background:var(--hr-sidebar);color:#fff;padding:8px 8px 8px 14px;font-size:12px;font-weight:600}
.calc-head .btn.ghost{color:var(--hr-sidebar-muted)}
.calc-head .btn.ghost:hover{background:var(--hr-sidebar-hover);color:#fff}
.calc-body{padding:12px}
.calc-disp{background:var(--hr-subtle);border:1px solid var(--hr-border);border-radius:6px;padding:8px 10px;text-align:right}
.calc-disp input{border:0;background:none;padding:0;text-align:right;font-family:var(--f-mono);font-size:14px;box-shadow:none}
.calc-disp input:focus{box-shadow:none}
.calc-res{font-family:var(--f-mono);font-size:22px;font-weight:600;min-height:30px;overflow-x:auto;white-space:nowrap}
.calc-keys{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;margin-top:8px}
.calc-keys button{font-family:var(--f-mono);font-size:13px;padding:8px 0;border-radius:5px;border:1px solid var(--hr-border-strong);background:var(--hr-surface);cursor:pointer}
.calc-keys button:hover{background:var(--hr-hover)}
.calc-keys button.fn{background:var(--hr-subtle);color:#374151}
.calc-keys button.eq{background:var(--hr-sidebar);color:#fff;border-color:var(--hr-sidebar)}

/* Modal + toast */
.modal-bg{position:fixed;inset:0;z-index:100;background:rgba(15,23,42,.5);display:grid;place-items:center;padding:16px;animation:fade .15s ease-out}
.modal{background:var(--hr-surface);border-radius:10px;max-width:520px;width:100%;box-shadow:0 20px 50px rgba(0,0,0,.2);max-height:90vh;overflow:auto;display:flex;flex-direction:column}
.modal h2{font-size:17px;padding:20px 24px 14px;border-bottom:1px solid var(--hr-border)}
.modal .mbody{padding:18px 24px;font-size:13.5px}
.modal .acts{display:flex;justify-content:flex-end;gap:8px;padding:14px 24px;border-top:1px solid var(--hr-border);background:var(--hr-bg);flex-wrap:wrap}
.toast{position:fixed;bottom:24px;right:24px;z-index:200;background:var(--hr-text);color:#fff;padding:12px 18px;border-radius:8px;box-shadow:0 10px 25px rgba(0,0,0,.15);font-size:13px;max-width:380px;animation:fade .15s ease-out}
.with-foot .toast{bottom:84px}
@keyframes fade{from{opacity:0}}
.sidebar-scrim{display:none}

@media (max-width:1000px){
  .modes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sess-grid.with-nav{grid-template-columns:minmax(0,1fr)}
  .navp{position:static;max-height:none;order:-1}
}
@media (max-width:860px){
  .app-shell{display:block}
  .topbar{display:flex;align-items:center;gap:10px;background:var(--hr-sidebar);padding:10px 16px;position:sticky;top:0;z-index:50}
  .topbar .wordmark{font-size:15px}
  .topbar .wordmark span{display:none}
  .topbar .btn.ghost{color:#fff}
  .topbar .btn.ghost:hover{background:var(--hr-sidebar-hover)}
  .topbar .grow{flex:1}
  .sidebar{position:fixed;left:0;top:0;bottom:0;width:260px;z-index:90;transform:translateX(-100%);transition:transform .2s}
  .sidebar.open{transform:none;box-shadow:0 0 40px rgba(0,0,0,.35)}
  .sidebar-scrim{display:block;position:fixed;inset:0;background:rgba(15,23,42,.4);z-index:80}
  .main{padding:20px 16px 60px}
  .exam-bar-in{padding:10px 16px}
  .eb-brand{display:none}
  .sess,.cards-wrap{padding-inline:16px}
  .data-table .hide-sm{display:none}
  .toast{left:16px;right:16px;bottom:16px;max-width:none}
}
@media (max-width:560px){
  .grid3{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .modes{grid-template-columns:minmax(0,1fr)}
  .res-head{grid-template-columns:minmax(0,1fr);gap:12px}
  .dbar{grid-template-columns:minmax(0,1fr) 96px}
  .dbar .track{grid-column:1/-1;grid-row:2}
  .lbl-long{display:none}
  .ritem summary{grid-template-columns:34px 12px minmax(0,1fr)}
  .ritem summary .chip{display:none}
  .cnote{padding-left:4px}
  .calc{left:16px;right:16px;width:auto}
  .qcount{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
.chip .icon{width:12px;height:12px}

/* The artifact host supplied this reset; hosted, the page needs its own. */
html,body{margin:0;padding:0}
.app-shell{min-height:100vh}
.page-header>div:first-child{flex:1 1 380px;min-width:0}
/* Logo image (falls back to the text wordmark if /logo-white.png is missing) */
.hr-logo{display:block;max-width:160px;height:auto}
.topbar .hr-logo{height:26px;width:auto}
.auth-logo.hr-logo,.auth-logo-wrap .wordmark{margin:0 auto;max-width:180px}
.auth-logo-wrap .wordmark{text-align:center}
.sync-note{display:flex;gap:8px;align-items:flex-start;margin:12px 4px 0;padding:8px 10px;border-radius:6px;background:rgba(255,255,255,.06);color:var(--hr-sidebar-muted);font-size:11.5px;line-height:1.4;text-decoration:none}
.sync-note.warn{background:rgba(217,119,6,.18);color:#fcd34d}
.sync-note .icon{width:14px;height:14px;margin-top:1px}
.sidebar-user .btn.ghost{padding:5px 6px}
.badge.warning{background:var(--hr-warning-bg);color:var(--hr-warning-ink)}
.badge .icon{width:12px;height:12px;vertical-align:-2px}
.data-table .btn .icon{width:14px;height:14px}

/* Slide-over (keygen) */
.slideover-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:100;animation:fade .15s ease-out}
.slideover{position:fixed;top:0;right:0;bottom:0;width:100%;max-width:480px;background:var(--hr-surface);box-shadow:-10px 0 30px rgba(0,0,0,.1);z-index:101;display:flex;flex-direction:column;animation:slide .18s ease-out}
.slideover-header{padding:20px 24px 16px;border-bottom:1px solid var(--hr-border);display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.slideover-title{font-size:17px;font-weight:600;margin:0}
.slideover-subtitle{font-size:12px;color:var(--hr-text-muted);margin-top:4px}
.slideover-body{padding:20px 24px;flex:1;overflow-y:auto}
.slideover-footer{padding:16px 24px;border-top:1px solid var(--hr-border);display:flex;justify-content:flex-end;gap:8px;background:var(--hr-bg);flex-wrap:wrap}
@keyframes slide{from{transform:translateX(24px);opacity:.6}}

/* Sign-in (keygen) */
.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:var(--hr-bg)}
.auth-card{background:var(--hr-surface);border-radius:10px;width:100%;max-width:420px;box-shadow:0 20px 50px rgba(0,0,0,.15);overflow:hidden}
.auth-logo-wrap{background:var(--hr-sidebar);padding:28px;text-align:center}
.auth-body{padding:32px}
.auth-title{font-size:17px;font-weight:600;margin:0 0 4px;text-align:center}
.auth-subtitle{font-size:13px;color:var(--hr-text-muted);text-align:center;margin:0 0 24px}
.btn-ms{width:100%;padding:10px 14px;font-size:14px;font-weight:500;gap:10px;border-color:#8c8c8c;color:#5e5e5e}
.btn-ms:hover{background:#f6f6f6}
.auth-note{font-size:12px;color:var(--hr-text-dim);text-align:center;margin:20px 0 0}

/* ── HRAV Academy ─────────────────────────────────────────────────────────── */
input[type=date],input[type=file]{font-size:13px;padding:7px 10px;border-radius:6px;border:1px solid var(--hr-border-strong);background:var(--hr-surface);color:var(--hr-text);width:100%;min-width:0}
input[type=file]{padding:6px}
.spacer{flex:1}
.pbar{height:8px;flex:1;min-width:60px;background:var(--hr-hover);border-radius:4px;overflow:hidden}
.pbar>div{height:100%;background:var(--hr-info);border-radius:4px;transition:width .3s}
.pbar.lg{height:10px;margin-top:10px}
.pbar.sm{height:5px;min-width:40px}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;margin-bottom:8px}
.section-title{margin-top:28px}

/* rank */
.rank-card{padding:22px}
.rank-main{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.rank-badge{width:64px;height:64px;border-radius:14px;background:var(--hr-sidebar);color:#fff;display:grid;place-items:center;position:relative;flex:none}
.rank-badge .icon{width:30px;height:30px}
.rank-badge span{position:absolute;right:-6px;bottom:-6px;background:var(--hr-info);color:#fff;font-size:11px;font-weight:700;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;border:2px solid var(--hr-surface)}
.rank-name{font-size:22px;font-weight:600;line-height:1.2}
.rank-pts{font-size:13px;color:var(--hr-text-muted);margin-top:2px}
.rank-pts b{color:var(--hr-text);font-variant-numeric:tabular-nums}
.rank-ladder{display:flex;gap:4px;margin-top:18px;flex-wrap:wrap}
.rung{flex:1;min-width:90px;font-size:11px;text-align:center;padding:5px 6px;border-radius:4px;background:var(--hr-hover);color:var(--hr-text-dim);white-space:nowrap}
.rung.on{background:var(--hr-info-bg);color:var(--hr-info-ink);font-weight:600}

/* ledger */
.ledger{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.ledger li{display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:10px;align-items:baseline;padding:8px 0;border-bottom:1px solid var(--hr-border);font-size:13px}
.ledger li:last-child{border-bottom:0}
.lp{font-weight:600;color:var(--hr-success);font-variant-numeric:tabular-nums}
.lp.neg{color:var(--hr-danger)}
.ln{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ld{font-size:12px;color:var(--hr-text-dim);white-space:nowrap}

/* track + exam cards */
.tcard,.ecard{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:16px 18px;display:flex;flex-direction:column;gap:6px;min-width:0}
.tcard{cursor:pointer;transition:border-color .1s,box-shadow .1s}
.tcard:hover{border-color:var(--hr-border-emphasis);box-shadow:0 4px 14px rgba(17,24,39,.06)}
.tcard h3,.ecard h3{font-size:16px;margin-top:2px}
.tsum{font-size:13px;color:var(--hr-text-muted);line-height:1.5}
.tmeta{font-size:12px;color:var(--hr-text-dim)}
.tnext{font-size:12.5px;color:var(--hr-info-ink);display:flex;gap:6px;align-items:center;margin-top:4px}
.tnext.done{color:var(--hr-success-ink)}
.tnext .icon{width:14px;height:14px}
.ekv{display:flex;gap:6px 16px;flex-wrap:wrap;font-size:12.5px;color:var(--hr-text-muted)}
.ekv b{color:var(--hr-text);font-weight:600}
.ekv.big{font-size:14px;gap:8px 22px;padding-bottom:14px;border-bottom:1px solid var(--hr-border)}
.rules{margin:14px 0 0;padding-left:20px;font-size:13.5px;line-height:1.7;color:#374151}
.track-hero .pbar{margin-top:8px}

/* course steps */
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.step-btn{display:grid;grid-template-columns:36px minmax(0,1fr) auto;gap:14px;align-items:center;width:100%;text-align:left;background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:14px 16px;cursor:pointer;transition:border-color .1s}
.step-btn:hover{border-color:var(--hr-border-emphasis)}
.step-n{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:600;font-size:13px;background:var(--hr-hover);color:#374151}
.step.done .step-n{background:var(--hr-success);color:#fff}
.step.doing .step-n{background:var(--hr-info);color:#fff}
.step-body{display:flex;flex-direction:column;gap:2px;min-width:0}
.step-title{font-weight:600;font-size:14.5px}
.step-sum{font-size:13px;color:var(--hr-text-muted)}
.step-meta{font-size:12px;color:var(--hr-text-dim)}
.step-side{display:flex;flex-direction:column;align-items:flex-end;gap:4px}

/* course player */
.player{display:grid;grid-template-columns:260px minmax(0,1fr);gap:20px;align-items:start}
.mods{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:14px;position:sticky;top:16px;max-height:calc(100vh - 32px);overflow:auto}
.mods-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.mods ol{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:2px}
.mod{display:grid;grid-template-columns:24px minmax(0,1fr) auto;gap:8px;align-items:center;width:100%;text-align:left;padding:7px 8px;border-radius:6px;border:0;background:transparent;cursor:pointer;font-size:13px;color:#374151}
.mod:hover{background:var(--hr-hover)}
.mod.on{background:var(--hr-info-bg);color:var(--hr-info-ink);font-weight:600}
.mod-ic{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:600;background:var(--hr-hover)}
.mod.on .mod-ic{background:var(--hr-info);color:#fff}
.mod.done .mod-ic{background:var(--hr-success);color:#fff}
.mod-ic .icon{width:13px;height:13px}
.mod-t{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mod-c{font-size:11px;color:var(--hr-text-dim)}
.mods-obj{margin-top:16px;padding-top:12px;border-top:1px solid var(--hr-border)}
.mods-obj ul{margin:6px 0 0;padding-left:18px;font-size:12.5px;color:var(--hr-text-muted);line-height:1.6}
.mod-body{background:var(--hr-surface);border:1px solid var(--hr-border);border-radius:8px;padding:clamp(18px,3vw,32px);min-width:0}
.mod-title{font-size:21px;margin:4px 0 18px}
.mod-foot{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:26px;padding-top:18px;border-top:1px solid var(--hr-border)}

/* lesson typography (Markdown) */
.lesson{font-size:15px;line-height:1.7;color:#1f2937;max-width:76ch}
.lesson>*:first-child{margin-top:0}
.lesson h2{font-size:18px;margin:26px 0 8px}
.lesson h3{font-size:16px;margin:22px 0 6px}
.lesson h4{font-size:14px;margin:18px 0 4px;text-transform:uppercase;letter-spacing:.04em;color:var(--hr-text-muted)}
.lesson p{margin:0 0 12px}
.lesson ul,.lesson ol{margin:0 0 12px;padding-left:22px}
.lesson li{margin:3px 0}
.lesson strong{font-weight:600;color:var(--hr-text)}
.lesson code{font-size:13px}
.lesson pre{background:#f8fafc;border:1px solid var(--hr-border);border-radius:6px;padding:12px 14px;overflow-x:auto;font-size:13px;line-height:1.55;margin:0 0 14px}
.lesson pre code{background:none;padding:0}
.lesson blockquote{margin:0 0 14px;padding:10px 14px;background:var(--hr-info-bg);border-left:3px solid var(--hr-info);border-radius:0 6px 6px 0;color:var(--hr-info-ink)}
.lesson blockquote p:last-child{margin:0}
.lesson table{border-collapse:collapse;margin:0 0 14px;font-size:13.5px;display:block;overflow-x:auto;max-width:100%}
.lesson th,.lesson td{border:1px solid var(--hr-border);padding:7px 10px;text-align:left;vertical-align:top}
.lesson th{background:var(--hr-subtle);font-weight:600}
.lesson img{max-width:100%;border-radius:6px;border:1px solid var(--hr-border)}
.lesson hr{border:0;border-top:1px solid var(--hr-border);margin:20px 0}
.lesson a{color:var(--hr-info)}

/* tasks */
.task{border:1px solid var(--hr-border-strong);border-radius:8px;padding:16px 18px;margin:18px 0;background:var(--hr-subtle);max-width:80ch}
.task.solved{border-color:#a7f3d0;background:#f6fefb}
.task.revealed{background:var(--hr-subtle)}
.task-head{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-bottom:8px}
.task-tag{display:inline-flex;gap:5px;align-items:center;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--hr-sidebar)}
.task-tag .icon{width:14px;height:14px}
.task-prompt{font-size:14.5px;margin-bottom:10px}
.task .warning-box,.task .success-box,.task .info-box{margin-bottom:10px}
.tex{margin-top:8px;font-size:13.5px;color:inherit}
.tchoices{display:flex;flex-direction:column;gap:6px;margin-bottom:10px}
.tchoice{display:flex;gap:10px;align-items:flex-start;text-align:left;padding:9px 12px;border:1px solid var(--hr-border-strong);border-radius:6px;background:var(--hr-surface);cursor:pointer;font-size:14px}
.tchoice:hover{border-color:var(--hr-border-emphasis)}
.tchoice.sel{border-color:var(--hr-info);background:var(--hr-info-bg);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.tchoice.sel .letter{background:var(--hr-info);color:#fff;border-color:var(--hr-info)}
.tinput{display:flex;align-items:stretch;max-width:360px;margin-bottom:10px}
.tinput input{border-radius:6px 0 0 6px}
.tinput input:only-child{border-radius:6px}
.unit{display:flex;align-items:center;padding:0 12px;border:1px solid var(--hr-border-strong);border-left:0;border-radius:0 6px 6px 0;background:var(--hr-hover);font-size:13px;color:#374151}
.tact{gap:6px}

/* simulated AV labs */
.chk{display:inline-flex;gap:5px;align-items:center;white-space:nowrap}
.vout{border:1px solid var(--hr-border-strong);border-radius:8px;background:var(--hr-surface);padding:10px 12px;margin-bottom:10px}
.vout.ok{border-color:#a7f3d0}
.vout.bad{border-color:#fecaca}
.vout-head{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:13.5px}
.vout-head select{font-size:12.5px;padding:3px 6px}
.vchain{display:flex;flex-wrap:wrap;gap:4px;align-items:center;margin:8px 0;font-size:12px}
.vchain .chip{background:var(--hr-hover);border:1px solid var(--hr-border);border-radius:4px;padding:2px 7px}
.vchain .arrow{color:var(--hr-text-dim)}
.vstatus{display:flex;gap:6px;align-items:flex-start;font-size:13px}
.vstatus .icon{width:16px;height:16px;flex:none;margin-top:1px}
.vout.ok .vstatus .icon{color:var(--hr-success)}
.vout.bad .vstatus{color:var(--hr-danger-ink)}
.flow-wrap{overflow-x:auto;border:1px solid var(--hr-border);border-radius:8px;background:var(--hr-surface)}
.flow-svg{display:block;width:100%;height:auto;font:12px system-ui,sans-serif}
.flow-svg .dev{fill:var(--hr-subtle);stroke:var(--hr-border-strong)}
.flow-svg .dev-t{font-weight:600;fill:var(--hr-text)}
.flow-svg .port{cursor:pointer}
.flow-svg .port text{fill:#374151}
.flow-svg .port:hover circle,.flow-svg .port.on circle{stroke:#111827;stroke-width:2.5}
.flow-svg .port.on text{font-weight:700}
.flow-svg .wire{fill:none;stroke-width:3;cursor:pointer;opacity:.85}
.flow-svg .wire:hover{stroke-width:5}
.flow-svg .wire.fixed{stroke-dasharray:6 4;opacity:.55;cursor:default}
.flow-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;font-size:12px;color:var(--hr-text-muted)}
.flow-legend .lg{display:inline-flex;gap:5px;align-items:center}
.flow-legend i{width:12px;height:4px;border-radius:2px;display:inline-block}
.gsrc{margin-bottom:8px}
.gsliders{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.gslider{display:grid;grid-template-columns:minmax(160px,240px) minmax(0,1fr) 70px;gap:10px;align-items:center;font-size:13px}
.gslider input[type=range]{width:100%}
.gval{text-align:right}
.gmeter{margin-bottom:8px}
.gm-name{font-size:13px;margin-bottom:3px}
.gm-bar{position:relative;height:14px;background:#eef2f7;border-radius:3px;overflow:hidden}
.gm-noise{position:absolute;left:0;top:0;bottom:0;background:#cbd5e1}
.gm-sig{position:absolute;top:0;bottom:0;background:var(--hr-info)}
.gm-sig.hot{background:var(--hr-warning)}
.gm-sig.clip{background:var(--hr-danger)}
.gm-clip{position:absolute;top:0;bottom:0;width:2px;background:var(--hr-danger)}
.gm-hr{position:absolute;top:0;bottom:0;border-left:2px dashed #94a3b8}
.gm-scale{display:flex;justify-content:space-between;gap:8px;font-size:11px;color:var(--hr-text-dim);margin:2px 0 6px;flex-wrap:wrap}
.gm-target{margin-bottom:4px}
.dgrid{border-collapse:collapse;font-size:12px;background:var(--hr-surface)}
.dgrid th,.dgrid td{border:1px solid var(--hr-border);padding:0}
.dgrid .corner{font-size:11px;color:var(--hr-text-muted);padding:4px 8px;text-align:left;font-weight:500}
.dgrid .dgrp{background:var(--hr-hover);padding:4px 6px;font-weight:600;text-align:center}
.dgrid .dch{height:90px;vertical-align:bottom;padding:4px 0;width:26px;font-weight:500}
.dgrid .dch span{writing-mode:vertical-rl;transform:rotate(180deg);white-space:nowrap}
.dgrid .rgrp{background:var(--hr-hover);text-align:left;padding:4px 8px;font-weight:600}
.dgrid .rch{text-align:left;padding:4px 8px;font-weight:500;white-space:nowrap}
.dgrid td.cell{width:26px;height:24px;cursor:pointer}
.dgrid td.cell:hover{background:var(--hr-info-bg)}
.dgrid td.cell.on.ok{background:var(--hr-success)}
.dgrid td.cell.on.bad{background:var(--hr-danger)}
.dgrid .rstat{padding:2px 8px;font-size:12px;border:0;white-space:nowrap}
.dgrid .rstat .icon{width:14px;height:14px;vertical-align:-2px}
.dgrid .rstat .ok{color:var(--hr-success)}
.dgrid .rstat .bad{color:var(--hr-danger-ink)}
.inv-filter{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.inv-filter input{flex:1;max-width:420px}
.console.log{max-height:340px;color:#e5e7eb}
.console.log .ln{color:#64748b;user-select:none}
.console.log mark{background:#facc15;color:#111827;border-radius:2px}
.pcap{max-height:340px;overflow:auto}
.pcap tr.clk{cursor:pointer}
.pcap tr.clk:hover td{background:var(--hr-hover)}
.pcap tr.sel td{background:var(--hr-info-bg)}
.inv-q{margin-bottom:12px}
.inv-q label{display:flex;gap:6px;align-items:flex-start;font-size:14px;margin-bottom:6px}
.inv-q label .icon{width:16px;height:16px;flex:none;margin-top:2px}
.inv-q.ok label .icon{color:var(--hr-success)}
.inv-q.bad label .icon{color:var(--hr-danger)}
.inv-q .tinput{max-width:420px}
@media (max-width:760px){
  .gslider{grid-template-columns:1fr 64px}
  .gslider label{grid-column:1/-1}
}

/* starter packs */
.starter-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px;margin-bottom:24px}
.panel.starter{padding:14px 16px;display:flex;flex-direction:column}
.panel.starter .btn{align-self:flex-start;margin-top:auto}
.starter-t{font-weight:600;font-size:15px}

/* labs */
.task-head{position:relative}
.lab-help-wrap{order:99;margin-left:auto}
.lab-help-btn{font-size:12px}
.lab-help h3{font-size:14px;margin:16px 0 6px}
.lab-help h3:first-child{margin-top:0}
.task.lab{max-width:none}
.code-ed-wrap{border:1px solid var(--hr-border-strong);border-radius:8px;overflow:hidden;background:#0f1422;margin-bottom:10px}
.code-ed-head{display:flex;justify-content:space-between;align-items:center;padding:6px 12px;background:#1a2030;color:#cbd5e1;border-bottom:1px solid #2d3548}
.code-ed-head .hint-text{color:#94a3b8}
.code-ed{display:block;width:100%;box-sizing:border-box;border:0;border-radius:0;resize:vertical;background:#0f1422;color:#e5e7eb;font:13px/1.55 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;padding:12px 14px;tab-size:2;white-space:pre;overflow:auto;min-height:180px}
.code-ed:focus{outline:2px solid var(--hr-info);outline-offset:-2px}
.lab-tabs{display:flex;gap:2px;border-bottom:1px solid var(--hr-border);margin-top:12px}
.lab-tabs button{border:0;background:none;padding:8px 12px;font-size:13px;font-weight:600;color:var(--hr-text-muted);border-bottom:2px solid transparent;margin-bottom:-1px;cursor:pointer}
.lab-tabs button.on{color:var(--hr-text);border-bottom-color:var(--hr-sidebar)}
.lab-pane{padding:12px 0 4px}
.lab-panel-empty{font-size:13px;color:var(--hr-text-muted);padding:10px 0}
.console{background:#0f1422;color:#d1fae5;font:12.5px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;padding:10px 12px;border-radius:6px;white-space:pre-wrap;word-break:break-word;max-height:260px;overflow:auto;margin:0}
.console.code{color:#e5e7eb}
.ctl-grid{display:flex;flex-direction:column;border:1px solid var(--hr-border);border-radius:6px;background:var(--hr-surface)}
.ctl-row{display:grid;grid-template-columns:minmax(120px,200px) 90px minmax(0,1fr);gap:10px;align-items:center;padding:7px 10px;border-top:1px solid var(--hr-border);font-size:13px}
.ctl-row:first-child{border-top:0}
.ctl-type{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--hr-text-dim)}
.ctl-val{display:flex;gap:8px;align-items:center;min-width:0}
.ctl-btn{min-width:72px;padding:5px 12px;border:1px solid var(--hr-border-strong);border-radius:6px;background:var(--hr-surface);font-size:12.5px;font-weight:600;cursor:pointer}
.ctl-btn.on{background:var(--hr-info);border-color:var(--hr-info);color:#fff}
.ctl-btn:disabled{opacity:.5;cursor:default}
.ctl-led{width:14px;height:14px;border-radius:50%;background:#d1d5db;border:1px solid #9ca3af}
.ctl-led.on{background:#22c55e;border-color:#16a34a;box-shadow:0 0 6px rgba(34,197,94,.6)}
.ctl-in{width:110px;padding:4px 8px;font-size:13px}
.ctl-in.wide{width:100%;max-width:320px}
.small{font-size:12px}
.lab-results{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.lab-results li{display:flex;gap:8px;align-items:flex-start;font-size:13.5px}
.lab-results li .icon{width:16px;height:16px;flex:none;margin-top:2px}
.lab-results li.ok .icon{color:var(--hr-success)}
.lab-results li.bad .icon{color:var(--hr-danger)}
.lab-results .dot{width:10px;height:10px;border-radius:50%;border:2px solid var(--hr-border-strong);flex:none;margin:4px 3px 0}
details.sol{margin-top:10px}
details.sol summary{cursor:pointer;font-weight:600;font-size:13px;margin-bottom:6px}
.net-table{border-collapse:collapse;width:100%;font-size:13px;background:var(--hr-surface)}
.net-table th,.net-table td{border:1px solid var(--hr-border);padding:6px 8px;text-align:left;vertical-align:middle}
.net-table th{background:var(--hr-hover);font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--hr-text-muted)}
.net-table tr.router td{background:var(--hr-subtle)}
.net-in{width:100%;min-width:110px;box-sizing:border-box;padding:4px 7px;font-size:13px}
.table-wrap{overflow-x:auto;margin-bottom:12px}
.net-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:16px;align-items:start}
.term{border:1px solid #2d3548;border-radius:8px;overflow:hidden;background:#0f1422}
.term-head{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:6px 10px;background:#1a2030;color:#cbd5e1;flex-wrap:wrap}
.term-head .hint-text{color:#94a3b8}
.term-head select{background:#0f1422;color:#e5e7eb;border:1px solid #2d3548;border-radius:4px;padding:2px 6px;font-size:12px}
.term-out{border-radius:0;height:200px;max-height:none}
.term-line{display:flex;align-items:center;gap:6px;padding:6px 10px;border-top:1px solid #2d3548;color:#d1fae5}
.term-line input{flex:1;background:transparent;border:0;color:#e5e7eb;font-size:13px;padding:2px 0}
.term-line input:focus{outline:none}
.ts-call{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:8px;background:var(--hr-warning-bg);color:var(--hr-warning-ink);margin-bottom:12px}
.ts-call .icon{flex:none;margin-top:2px}
.ts-call .lesson{color:var(--hr-text);margin-top:2px}
.ts-call .lesson p:last-child{margin-bottom:0}
.ts-meter{display:flex;gap:12px;align-items:baseline;flex-wrap:wrap;font-size:13px;margin-bottom:10px}
.ts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-bottom:14px}
.ts-group{display:flex;flex-direction:column;gap:6px}
.ts-check{border:1px solid var(--hr-border-strong);border-radius:6px;background:var(--hr-surface)}
.ts-check .ts-q{display:flex;gap:6px;align-items:center;width:100%;text-align:left;padding:8px 10px;font-size:13px;background:none;border:0;cursor:pointer;color:var(--hr-text)}
.ts-check button.ts-q:hover{background:var(--hr-hover)}
.ts-check button.ts-q:disabled{cursor:default;color:var(--hr-text-dim)}
.ts-check.done{border-color:#bfdbfe;background:#f8fbff}
.ts-check.done .ts-q{font-weight:600;cursor:default}
.ts-check.done .ts-q .icon{width:14px;height:14px;color:var(--hr-info)}
.ts-r{padding:0 10px 8px;font-size:13px}
.ts-r p:last-child{margin-bottom:0}
.tchoice.wrong{opacity:.55;text-decoration:line-through;cursor:default}
@media (max-width:760px){
  .net-split{grid-template-columns:1fr}
  .ctl-row{grid-template-columns:1fr auto;}
  .ctl-row .ctl-type{display:none}
}

/* admin */
.review-list{display:flex;flex-direction:column;gap:14px;margin-bottom:12px}
.rcard h3{font-size:17px;margin:2px 0}
.rgrid{display:grid;grid-template-columns:140px minmax(0,1fr);gap:12px;margin-top:14px}
.tpill{display:flex;gap:6px;align-items:center;font-size:12px;margin:2px 0;max-width:260px}
.tpill>span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;flex:0 1 auto}
.assign-list{display:flex;flex-direction:column;gap:8px}
.assign-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--hr-border);border-radius:6px}
.data-table.plain td{padding:7px 10px}
.data-table tr.cur td{background:var(--hr-info-bg);font-weight:600}
.data-table.plain td .icon{width:14px;height:14px;color:var(--hr-success)}

@media (max-width:1000px){
  .player{grid-template-columns:minmax(0,1fr)}
  .mods{position:static;max-height:none}
  .two-col{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:560px){
  .step-btn{grid-template-columns:30px minmax(0,1fr)}
  .step-side{grid-column:2;flex-direction:row;align-items:center}
  .rgrid{grid-template-columns:minmax(0,1fr)}
  .rung{min-width:0;flex-basis:30%}
  .ledger li{grid-template-columns:54px minmax(0,1fr)}
  .ld{grid-column:2}
}

/* command-line labs */
.term.cli .term-out{height:320px}
.term.cli .term-line span{white-space:nowrap}
/* switch labs */
.sw-sw{display:inline-block;flex:none;width:10px;height:10px;border-radius:3px}
.sw-name{display:flex;align-items:center;gap:8px}
.sw-brush{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:12px 0;padding:8px 10px;border:1px dashed var(--hr-border-strong);border-radius:8px;background:var(--hr-surface)}
.sw-box{border:1px solid var(--hr-border);border-radius:8px;background:var(--hr-surface);padding:10px 12px;margin-bottom:10px}
.sw-head{display:flex;gap:8px;align-items:baseline;margin-bottom:8px}
.sw-ports{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:6px}
.sw-port{position:relative;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 4px;border:1px solid var(--hr-border-strong);border-radius:6px;background:#1a2030;color:#e5e7eb;cursor:pointer;min-height:58px}
.sw-port:hover{outline:2px solid var(--hr-info)}
.sw-port.up{border-color:#f59e0b}
.sw-n{font:600 11px ui-monospace,monospace}
.sw-chip{width:26px;height:10px;border-radius:3px;border:1px solid rgba(255,255,255,.35)}
.sw-t{position:absolute;top:3px;right:4px;font:700 10px ui-monospace,monospace;color:#fbbf24}
.sw-dev{font-size:10px;line-height:1.1;text-align:center;color:#cbd5e1;overflow:hidden;max-width:100%;text-overflow:ellipsis;white-space:nowrap}
.sw-opts{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:10px;align-items:center}
.chk{display:inline-flex;gap:5px;align-items:center}
/* rack labs */
.rk-grid{display:grid;grid-template-columns:minmax(220px,320px) minmax(0,1fr);gap:18px;align-items:start}
.rk-rack{border:6px solid #1a2030;border-radius:6px;background:#0f1422;padding:2px;display:flex;flex-direction:column;gap:2px}
.rk-slot{height:20px;border:1px dashed #2d3548;border-radius:3px;display:flex;align-items:center;justify-content:flex-end;padding:0 6px;color:#64748b;cursor:default}
.rk-slot.can{cursor:pointer;border-color:#475569}
.rk-slot.can:hover{background:#1e293b;border-color:var(--hr-info)}
.rk-item{position:relative;display:flex;flex-direction:row;align-items:center;gap:8px;padding:0 54px 0 8px;border-radius:3px;background:#334155;color:#f1f5f9;font-size:12px;cursor:pointer;overflow:hidden;white-space:nowrap}
.rk-item>span:first-child{font-weight:600;overflow:hidden;text-overflow:ellipsis}
.rk-item>.hint-text{overflow:hidden;text-overflow:ellipsis}
.rk-item .rk-u{top:50%;transform:translateY(-50%)}
.rk-item .hint-text{color:#cbd5e1}
.rk-item.amp{background:#7c2d12}.rk-item.net{background:#1e3a8a}.rk-item.power{background:#3f3f46}.rk-item.patch{background:#475569}.rk-item.dsp{background:#14532d}.rk-item.blank{background:#1f2937}
.rk-u{position:absolute;right:6px;top:2px;font-size:10px;color:#94a3b8}
.rk-slot .rk-u{position:static}
.rk-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.rk-list li{display:flex;gap:4px;align-items:center}
.rk-li{flex:1;display:flex;flex-wrap:wrap;gap:4px 8px;align-items:baseline;text-align:left;padding:7px 10px;border:1px solid var(--hr-border-strong);border-radius:6px;background:var(--hr-surface);cursor:pointer;font-size:13px}
.rk-li .mono{margin-left:auto}
.rk-list li.on .rk-li{border-color:var(--hr-info);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
/* matching labs */
.net-table.match td .icon{width:16px;height:16px}
.net-table.match select{max-width:100%}
@media (max-width:760px){.rk-grid{grid-template-columns:1fr}}

/* ── track locks ─────────────────────────────────────────────────────────── */
.tcard.locked{background:var(--hr-subtle)}
.tcard.locked h3{color:var(--hr-text-muted)}
.tlock{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--hr-text-muted);margin-top:6px}
.tlock .icon,.badge .icon{width:13px;height:13px}
.lock-list{list-style:none;margin:8px 0;padding:0;display:grid;gap:6px}
.lock-list li{display:flex;align-items:center;gap:8px}
.lock-list li .icon{width:16px;height:16px;flex:none;color:var(--hr-text-dim)}
.lock-list li.met{color:var(--hr-success-ink)}
.lock-list li.met .icon{color:var(--hr-success)}
.linklike{background:none;border:0;padding:0;font:inherit;color:var(--hr-info);text-decoration:underline;cursor:pointer}
.step.locked .step-btn{cursor:not-allowed;opacity:.6}
/* ── admin progress panel ───────────────────────────────────────────────── */
.prog-list{display:grid;gap:8px}
.prog-track{border:1px solid var(--hr-border);border-radius:8px;background:var(--hr-surface)}
.prog-row{display:flex;align-items:center;gap:10px;padding:8px 10px}
.prog-row.sub{border-top:1px solid var(--hr-border);padding-left:36px}
.prog-row.sub>span:first-child{flex:1;min-width:0;display:flex;flex-direction:column}
.prog-row.sub .pbar{width:70px;flex:none}
.prog-toggle{flex:1;min-width:0;display:flex;align-items:center;gap:8px;background:none;border:0;padding:0;font:inherit;color:inherit;text-align:left;cursor:pointer}
.prog-toggle>span{display:flex;flex-direction:column;min-width:0}
.prog-toggle .icon{width:16px;height:16px;flex:none;transition:transform .15s}
.prog-toggle .icon.rot{transform:rotate(90deg)}
.prog-act{display:flex;gap:4px;flex:none}
/* lesson diagrams */
.lesson img{display:block;max-width:100%;height:auto;margin:10px 0 16px;border:1px solid var(--hr-border);border-radius:8px;background:#fff}
/* sign-off tasks */
.so-criteria{list-style:none;margin:6px 0 10px;padding:0;display:grid;gap:6px}
.so-criteria li{display:flex;gap:8px;align-items:flex-start}
.so-criteria li .icon{width:16px;height:16px;flex:none;margin-top:2px;color:var(--hr-text-dim)}
.task.signoff.solved .so-criteria li .icon{color:var(--hr-success)}
.task.signoff .task-tag{color:var(--hr-purple-ink)}