/* Biemann EduHub — Mission Control lab console (shared by Maths, Physics and Chemistry labs) */
.lab-sec{background:radial-gradient(120% 80% at 10% 0%,#062a52 0%,#00142A 46%,#000A16 100%);color:#DCEFFF;padding:clamp(36px,5vw,72px) 0;position:relative;overflow:hidden;isolation:isolate}
.lab-sec::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(63,216,247,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(63,216,247,.05) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(100% 70% at 50% 0%,#000 30%,transparent 80%);z-index:-1}
.lab-sec .wrap{max-width:1480px}
.lab-intro{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:22px}
.lab-intro h2{color:#fff;font-size:clamp(1.9rem,1.4rem + 2vw,3rem);max-width:22ch}
.lab-intro p{color:rgba(220,239,255,.72);max-width:60ch;margin-top:10px}
.lab-intro .eyebrow{color:var(--cyan)}
.mono-k{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace}

.lab-console{border:1px solid rgba(63,216,247,.22);border-radius:22px;background:linear-gradient(180deg,rgba(6,32,61,.86),rgba(2,15,31,.92));box-shadow:0 40px 80px -40px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.06);overflow:hidden;backdrop-filter:blur(6px)}
.lc-top{display:flex;align-items:center;gap:16px;padding:12px 16px;border-bottom:1px solid rgba(63,216,247,.14);flex-wrap:wrap}
.lc-title{display:flex;align-items:center;gap:10px;font:700 .74rem var(--f-ui);letter-spacing:.2em;text-transform:uppercase;color:#fff}
.lc-title .lamp{width:9px;height:9px;border-radius:50%;background:#2EE59D;box-shadow:0 0 0 4px rgba(46,229,157,.15),0 0 12px #2EE59D;animation:lamp 2.4s ease-in-out infinite}
@keyframes lamp{50%{opacity:.45}}
.lc-hud{display:flex;align-items:center;gap:16px;margin-left:auto;flex-wrap:wrap}
.hud-lvl{display:flex;align-items:center;gap:10px}
.hud-lvl .badge-l{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#3FD8F7,#0A8FDB);color:#00142A;font:800 .9rem var(--f-ui)}
.hud-lvl small{display:block;font:600 .62rem var(--f-ui);letter-spacing:.14em;text-transform:uppercase;color:rgba(220,239,255,.6)}
.hud-lvl b{font:700 .82rem var(--f-ui);color:#fff}
.hud-bar{width:140px;height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:4px}
.hud-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#0A8FDB,#3FD8F7);box-shadow:0 0 10px #3FD8F7;transition:width .6s var(--ease)}
.hud-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);font:700 .74rem var(--f-ui);color:#fff}
.hud-chip .icon{width:14px;height:14px;color:var(--amber,#FFB547)}
.lc-btn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:10px;border:1px solid rgba(63,216,247,.25);background:rgba(63,216,247,.06);color:#DCEFFF;font:600 .76rem var(--f-ui);cursor:pointer;transition:background .2s,border-color .2s}
.lc-btn:hover{background:rgba(63,216,247,.14);border-color:rgba(63,216,247,.5)}
.lc-btn[aria-pressed="true"],.lc-btn.is-on{background:#3FD8F7;color:#00142A;border-color:#3FD8F7}
.lc-btn .icon{width:16px;height:16px}
.lc-btn--icon{width:36px;padding:0;justify-content:center}

.lc-rail{display:flex;gap:6px;padding:10px 12px;border-bottom:1px solid rgba(63,216,247,.1);overflow-x:auto;scrollbar-width:thin;background:rgba(0,10,22,.35)}
.lc-rail button{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:12px;border:1px solid transparent;background:transparent;color:rgba(220,239,255,.7);font:600 .8rem var(--f-ui);white-space:nowrap;cursor:pointer;transition:all .2s}
.lc-rail button .icon{width:16px;height:16px}
.lc-rail button:hover{color:#fff;background:rgba(255,255,255,.05)}
.lc-rail button.is-on{color:#00142A;background:linear-gradient(135deg,#3FD8F7,#7FE7FF);box-shadow:0 8px 22px -10px #3FD8F7}

.lc-cmd{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:14px 16px 6px}
.lc-cmd .field-in{position:relative}
.lc-cmd .field-in .pr{position:absolute;left:14px;top:50%;transform:translateY(-50%);font:700 .9rem "JetBrains Mono",monospace;color:#3FD8F7}
.lc-cmd input{width:100%;height:52px;border-radius:14px;border:1.5px solid rgba(63,216,247,.3);background:rgba(0,10,22,.65);color:#fff;padding:0 16px 0 40px;font:500 1rem "JetBrains Mono",ui-monospace,monospace;letter-spacing:.01em;transition:border-color .2s,box-shadow .2s}
.lc-cmd input:focus{outline:0;border-color:#3FD8F7;box-shadow:0 0 0 4px rgba(63,216,247,.16),0 0 24px -6px rgba(63,216,247,.6)}
.lc-cmd input.is-err{border-color:#FF6B6B;box-shadow:0 0 0 4px rgba(255,107,107,.14)}
.lc-launch{height:52px;padding:0 20px;border-radius:14px;border:0;background:linear-gradient(135deg,#3FD8F7,#0A8FDB);color:#00142A;font:800 .82rem var(--f-ui);letter-spacing:.12em;text-transform:uppercase;cursor:pointer;display:inline-flex;align-items:center;gap:8px;box-shadow:0 12px 26px -12px #3FD8F7}
.lc-launch:hover{filter:brightness(1.08)}
.lc-launch .icon{width:18px;height:18px}
.lc-ex{display:flex;gap:6px;flex-wrap:wrap;padding:6px 16px 12px;align-items:center}
.lc-ex span{font:600 .66rem var(--f-ui);letter-spacing:.14em;text-transform:uppercase;color:rgba(220,239,255,.5);margin-right:4px}
.lc-ex button{border:1px dashed rgba(63,216,247,.3);background:transparent;color:#BDEBFF;border-radius:999px;padding:5px 11px;font:500 .78rem "JetBrains Mono",monospace;cursor:pointer}
.lc-ex button:hover{border-style:solid;background:rgba(63,216,247,.08)}
.lc-msg{padding:0 16px 8px;font:500 .82rem var(--f-ui);color:#FFB547;min-height:0}
.lc-msg:empty{display:none}

.lc-main{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(300px,1fr);gap:0;border-top:1px solid rgba(63,216,247,.1)}
@media (max-width:1040px){.lc-main{grid-template-columns:minmax(0,1fr)}}
.lc-stage{padding:14px;border-right:1px solid rgba(63,216,247,.1);min-width:0}
@media (max-width:1040px){.lc-stage{border-right:0;border-bottom:1px solid rgba(63,216,247,.1)}}
.lc-canvas-wrap{position:relative;border-radius:16px;overflow:hidden;border:1px solid rgba(63,216,247,.18);background:#021327}
.lc-canvas{display:block;width:100%;height:clamp(320px,52vh,560px);cursor:crosshair;outline:0}
.lc-canvas.is-over{cursor:grab}.lc-canvas.is-grab{cursor:grabbing}
.lc-canvas:focus-visible{box-shadow:inset 0 0 0 2px #3FD8F7}
.lc-tools{position:absolute;top:10px;right:10px;display:flex;gap:6px}
.lc-tools button{width:34px;height:34px;border-radius:10px;border:1px solid rgba(63,216,247,.25);background:rgba(2,19,39,.8);color:#DCEFFF;display:grid;place-items:center;cursor:pointer}
.lc-tools button:hover{border-color:#3FD8F7}
.lc-tools .icon{width:16px;height:16px}
.lc-readout{position:absolute;left:10px;bottom:10px;font:600 .74rem "JetBrains Mono",monospace;color:#BDEBFF;background:rgba(2,19,39,.8);border:1px solid rgba(63,216,247,.2);padding:5px 9px;border-radius:8px;pointer-events:none}
.lc-legend{position:absolute;left:10px;top:10px;display:flex;flex-direction:column;gap:4px;pointer-events:none}
.lc-legend span{display:inline-flex;align-items:center;gap:8px;font:600 .74rem "JetBrains Mono",monospace;color:#EAF6FF;background:rgba(2,19,39,.78);padding:4px 9px;border-radius:8px;border:1px solid rgba(255,255,255,.08);max-width:min(70vw,420px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lc-legend i{width:14px;height:3px;border-radius:2px;flex:none}
.lc-hint{font:500 .74rem var(--f-ui);color:rgba(220,239,255,.5);margin-top:8px;display:flex;gap:14px;flex-wrap:wrap}
.lc-hint kbd{font:600 .68rem "JetBrains Mono",monospace;border:1px solid rgba(255,255,255,.18);border-radius:5px;padding:0 5px;color:#DCEFFF}

.lc-sliders{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px 18px;margin-top:14px}
.lk-slider label{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font:600 .74rem var(--f-ui);color:rgba(220,239,255,.75);letter-spacing:.02em}
.lk-slider output{font:700 .82rem "JetBrains Mono",monospace;color:#3FD8F7}
.lk-slider input[type=range]{width:100%;margin-top:6px;-webkit-appearance:none;appearance:none;height:6px;border-radius:999px;background:linear-gradient(90deg,#3FD8F7 var(--t,50%),rgba(255,255,255,.12) var(--t,50%));outline:0}
.lk-slider input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:#fff;border:3px solid #3FD8F7;box-shadow:0 0 0 4px rgba(63,216,247,.2);cursor:pointer}
.lk-slider input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid #3FD8F7;cursor:pointer}
.lk-slider input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 6px rgba(63,216,247,.45)}
.lc-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:12px}
.lc-row .lc-seg{display:inline-flex;padding:3px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)}
.lc-row .lc-seg button{border:0;background:transparent;color:rgba(220,239,255,.7);padding:7px 12px;border-radius:9px;font:600 .76rem var(--f-ui);cursor:pointer}
.lc-row .lc-seg button.is-on{background:#3FD8F7;color:#00142A}
.lc-field{display:grid;gap:4px;font:600 .72rem var(--f-ui);color:rgba(220,239,255,.7)}
.lc-field input,.lc-field select,.lc-field textarea{background:rgba(0,10,22,.6);border:1px solid rgba(63,216,247,.25);border-radius:10px;color:#fff;padding:8px 10px;font:500 .9rem "JetBrains Mono",monospace;min-width:0}
.lc-field select option{color:#000}
.lc-field textarea{resize:vertical;min-height:70px}
.lc-field input:focus,.lc-field select:focus,.lc-field textarea:focus{outline:0;border-color:#3FD8F7}
.lc-grid-f{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;margin-top:12px}

.lc-side{padding:14px;display:flex;flex-direction:column;gap:12px;min-width:0}
.tm{border:1px solid rgba(63,216,247,.16);border-radius:16px;background:rgba(0,10,22,.45);overflow:hidden}
.tm-h{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid rgba(63,216,247,.1);font:700 .66rem var(--f-ui);letter-spacing:.18em;text-transform:uppercase;color:rgba(220,239,255,.6)}
.tm-h .live{display:inline-flex;align-items:center;gap:6px;color:#2EE59D}
.tm-h .live::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor}
.tm-body{padding:6px 14px 12px}
.tm-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.07);font-size:.86rem}
.tm-row:last-child{border-bottom:0}
.tm-row span{color:rgba(220,239,255,.66)}
.tm-row b{font:600 .88rem "JetBrains Mono",monospace;color:#fff;text-align:right;overflow-wrap:anywhere}
.tm-row b.hl{color:#3FD8F7}.tm-row b.ok{color:#2EE59D}.tm-row b.warn{color:#FFB547}.tm-row b.bad{color:#FF6B6B}
.tm-row sup{font-size:.7em}
.tm-big{display:flex;align-items:baseline;gap:10px;padding:10px 0 4px}
.tm-big b{font:500 2.2rem/1 var(--f-display);color:#fff}
.tm-big span{font:600 .72rem var(--f-ui);letter-spacing:.1em;text-transform:uppercase;color:rgba(220,239,255,.55)}
.tm-note{font-size:.82rem;color:rgba(220,239,255,.66);padding:8px 0 2px;line-height:1.5}
.tm-note b{color:#fff}
.lk-steps{padding:4px 0}
.lk-steps-h{display:flex;justify-content:space-between;font:700 .66rem var(--f-ui);letter-spacing:.16em;text-transform:uppercase;color:rgba(220,239,255,.55);padding:6px 0}
.lk-steps ol{margin:0;padding-left:20px;display:grid;gap:8px;counter-reset:none}
.lk-steps li{font:500 .92rem/1.5 "JetBrains Mono",monospace;color:#EAF6FF;animation:stepIn .35s var(--ease)}
.lk-steps li::marker{color:#3FD8F7;font-weight:700}
.lk-steps li em{font-family:var(--f-body,inherit);font-style:normal;color:rgba(220,239,255,.62);font-size:.82rem;display:block}
@keyframes stepIn{from{opacity:0;transform:translateY(6px)}}
.lk-steps-a{display:flex;gap:8px;margin-top:10px}
.lk-steps-a button{border:1px solid rgba(63,216,247,.35);background:rgba(63,216,247,.08);color:#DCEFFF;border-radius:10px;padding:7px 12px;font:600 .76rem var(--f-ui);cursor:pointer}
.lk-steps-a button[data-more]{background:#3FD8F7;color:#00142A;border-color:#3FD8F7}

.mission{border:1px solid rgba(255,61,142,.28);border-radius:16px;padding:12px 14px;background:linear-gradient(135deg,rgba(255,61,142,.08),rgba(63,216,247,.04));position:relative;transition:transform .3s,border-color .3s}
.mission.is-win{border-color:#2EE59D;transform:scale(1.02);background:linear-gradient(135deg,rgba(46,229,157,.16),rgba(63,216,247,.06))}
.ms-head{display:flex;justify-content:space-between;align-items:center;gap:10px}
.ms-k{font:700 .64rem var(--f-ui);letter-spacing:.18em;text-transform:uppercase;color:#FF7FB3}
.ms-dots{display:flex;gap:4px}
.ms-dots i{width:16px;height:4px;border-radius:2px;background:rgba(255,255,255,.12)}
.ms-dots i.ok{background:#2EE59D}.ms-dots i.cur{background:#FF3D8E;box-shadow:0 0 8px #FF3D8E}
.ms-obj{margin:8px 0 6px;color:#fff;font-size:.95rem;line-height:1.45}
.ms-obj code{font:600 .86rem "JetBrains Mono",monospace;color:#3FD8F7}
.ms-foot{display:flex;justify-content:space-between;align-items:center}
.ms-hint{border:0;background:none;color:#BDEBFF;font:600 .76rem var(--f-ui);text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:0}
.ms-xp{font:700 .74rem "JetBrains Mono",monospace;color:#FFB547}
.ms-hint-t{font-size:.84rem;color:rgba(220,239,255,.75);margin-top:6px}

.lk-float{position:fixed;transform:translate(-50%,0);z-index:400;pointer-events:none;font:800 .9rem var(--f-ui);color:#FFB547;text-shadow:0 2px 12px rgba(0,0,0,.6);animation:lkFloat 1.4s ease-out forwards}
@keyframes lkFloat{to{transform:translate(-50%,-60px);opacity:0}}
.lk-confetti{position:fixed;inset:0;width:100vw;height:100vh;pointer-events:none;z-index:399}

/* Focus mode: the console takes over the screen, nothing else competes for attention */
body.lab-focus{overflow:hidden}
body.lab-focus .lab-sec{position:fixed;inset:0;z-index:300;overflow:auto;padding:12px 0}
body.lab-focus .lab-sec .lab-intro{display:none}
body.lab-focus .lc-canvas{height:calc(100vh - 330px);min-height:320px}
body.lab-focus .assist-fab,body.lab-focus .to-top,body.lab-focus .cookie{display:none!important}
@media (prefers-reduced-motion:reduce){.lc-title .lamp,.lk-steps li{animation:none}}

/* Lab landing cards (physics / chemistry) */
.lab-hero-stats{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.lab-hero-stats span{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);font:600 .78rem var(--f-ui);color:#fff}
.lab-hero-stats .icon{width:16px;height:16px;color:var(--cyan)}
.sim-key{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px;font:600 .72rem var(--f-ui);color:rgba(220,239,255,.7)}
.sim-key i{display:inline-block;width:12px;height:3px;border-radius:2px;margin-right:6px;vertical-align:middle}
.lc-twin{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px}
.lc-twin .lc-canvas{height:clamp(220px,32vh,340px)}
@media (max-width:720px){.lc-twin{grid-template-columns:minmax(0,1fr)}}
.lc-play{display:inline-flex;align-items:center;gap:8px}
.lab-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.lab-card{border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;background:var(--paper)}
.lab-card h3{font-size:1.1rem;display:flex;gap:10px;align-items:center}
.lab-card h3 .icon{color:var(--blue-ink)}
.lab-card p{color:var(--ink-2);font-size:.92rem;margin-top:6px}
.lab-card .caps{display:block;margin-top:10px;font:700 .64rem var(--f-ui);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.lc-stagegrid{display:grid;gap:10px}
.lc-stagegrid.is-twin{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr)}
.lc-stagegrid.is-twin .lc-canvas{height:clamp(300px,44vh,480px)}
@media (max-width:820px){.lc-stagegrid.is-twin{grid-template-columns:minmax(0,1fr)}.lc-stagegrid.is-twin .lc-canvas{height:300px}}
.lc-boot{position:absolute;inset:0;display:grid;place-items:center;font:600 .9rem var(--f-ui);color:#BDEBFF;background:rgba(2,19,39,.7)}
.lc-boot a{color:#3FD8F7}
.lab-console:not(.is-ready) .lc-side{opacity:.6}
#mcSteps:empty::before,#pcSteps:empty::before,#ccSteps:empty::before{content:"Working appears here, one step at a time.";display:block;padding:12px 0;color:rgba(220,239,255,.5);font-size:.86rem}
.lc-legend sup,.tm-row sup{font-size:.7em;line-height:0;vertical-align:.45em}
.grid-3-lab{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:clamp(24px,4vw,64px);align-items:start}
@media (max-width:860px){.grid-3-lab{grid-template-columns:minmax(0,1fr)}}
.focus-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media (max-width:560px){.focus-list{grid-template-columns:minmax(0,1fr)}}
.focus-list li{display:flex;gap:14px;padding:18px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--paper)}
.focus-list li>.icon{width:40px;height:40px;padding:9px;border-radius:12px;background:var(--sky);color:var(--blue-ink);flex:none}
.focus-list b{display:block;font:600 .95rem var(--f-ui);color:var(--navy)}
.focus-list span{display:block;color:var(--ink-2);font-size:.9rem;margin-top:4px}
.prose-wrap{max-width:880px}