.nuclear-lab{--nl-bg:#0c141e;--nl-panel:#111d29;--nl-line:#283c49;--nl-text:#e7eee9;--nl-muted:#9baeb9;--nl-soft:#718692;--nl-mint:#96dfcf;color:var(--nl-text);background:var(--nl-bg);border:1px solid var(--nl-line);border-radius:12px;font-family:inherit;line-height:1.6;overflow:hidden;isolation:isolate;margin:28px 0}
.nuclear-lab *{box-sizing:border-box}
.nuclear-lab button,.nuclear-lab input,.nuclear-lab select{font:inherit}
.nuclear-lab button{appearance:none;background:none;color:inherit;cursor:pointer;border:0;transition:background .15s,border-color .15s,color .15s}
.nuclear-lab button:disabled{cursor:default;opacity:.4}
.nuclear-lab button:focus-visible,.nuclear-lab select:focus-visible,.nuclear-lab input:focus-visible,.nuclear-lab a:focus-visible,.nuclear-lab summary:focus-visible,.nuclear-lab .nl-diagram:focus-visible{outline:2px solid var(--nl-mint);outline-offset:3px}
.nuclear-lab h2,.nuclear-lab h3,.nuclear-lab h4,.nuclear-lab p{margin:0}
.nuclear-lab .nl-header{padding:28px 30px 24px;display:flex;align-items:flex-start;justify-content:space-between;gap:24px;background:linear-gradient(130deg,#15252c88,transparent)}
.nuclear-lab .nl-eyebrow{font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:var(--nl-mint);margin-bottom:10px;font-family:var(--mono,monospace)}
.nuclear-lab .nl-header h2{font-family:var(--serif,Georgia,serif);font-size:clamp(27px,3vw,39px);font-weight:400;letter-spacing:-.035em;line-height:1.2}
.nuclear-lab .nl-intro{color:var(--nl-muted);font-size:12px;max-width:730px;margin-top:13px;line-height:1.9}
.nuclear-lab .nl-model-tag{flex:none;border:1px solid #40594f;color:#a9c5b8;font-size:9px;letter-spacing:.05em;padding:5px 9px;border-radius:20px;margin-top:6px}
.nuclear-lab .nl-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--nl-line);border-bottom:1px solid var(--nl-line);background:#0a121d}
.nuclear-lab .nl-tabs button{padding:16px 18px;text-align:left;font-size:12px;border-bottom:2px solid transparent;color:var(--nl-muted);display:flex;align-items:center;gap:10px;min-height:61px}
.nuclear-lab .nl-tabs button+button{border-left:1px solid var(--nl-line)}
.nuclear-lab .nl-tabs button span{font-family:var(--mono,monospace);font-size:10px;color:var(--nl-soft)}
.nuclear-lab .nl-tabs button:hover{background:#162833;color:var(--nl-text)}
.nuclear-lab .nl-tabs button[aria-selected=true]{background:#172b2e;color:var(--nl-mint);border-bottom-color:var(--nl-mint)}
.nuclear-lab .nl-tabs button[aria-selected=true] span{color:var(--nl-mint)}
.nuclear-lab .nl-scene-heading{padding:23px 30px 21px;border-bottom:1px solid var(--nl-line)}
.nuclear-lab .nl-scene-heading h3{font-size:17px;font-weight:500;letter-spacing:-.01em;line-height:1.5}
.nuclear-lab .nl-scene-heading p{color:var(--nl-muted);font-size:12px;max-width:900px;margin-top:7px;line-height:1.8}
.nuclear-lab .nl-workspace{display:grid;grid-template-columns:minmax(0,1fr) 295px}
.nuclear-lab .nl-stage{min-width:0;background:radial-gradient(ellipse at 50% 45%,#16293555,transparent 72%)}
.nuclear-lab .nl-legend{padding:17px 24px 5px;display:flex;flex-wrap:wrap;gap:10px 17px;color:var(--nl-muted);font-size:10px;min-height:43px}
.nuclear-lab .nl-legend span{display:flex;align-items:center;gap:7px}
.nuclear-lab .nl-legend i{display:inline-block;width:17px;height:3px;border-radius:4px}
.nuclear-lab .nl-diagram{width:100%;overflow:auto;scrollbar-color:#47605d #0d1823;scrollbar-width:thin;overscroll-behavior-x:contain}
.nuclear-lab .nl-svg{display:block;width:100%;height:auto;min-width:680px;overflow:visible}
.nuclear-lab .nl-svg text{font-family:inherit;letter-spacing:.005em}
.nuclear-lab .nl-transport{display:flex;gap:16px;align-items:center;justify-content:space-between;margin:0 24px;padding:13px 0;border-top:1px solid var(--nl-line)}
.nuclear-lab .nl-transport-buttons{display:flex;gap:5px;align-items:center;flex:none}
.nuclear-lab .nl-transport button{display:flex;align-items:center;justify-content:center;gap:6px;border:1px solid #38505c;border-radius:5px;min-width:35px;min-height:34px;padding:5px 10px;font-size:13px;background:#101e29}
.nuclear-lab .nl-transport button span{font-size:10px;white-space:nowrap}
.nuclear-lab .nl-transport button[data-action=play]{min-width:92px;color:var(--nl-mint);border-color:#486b65;background:#16312f}
.nuclear-lab .nl-transport button:hover:not(:disabled){background:#24443f;border-color:#709f92}
.nuclear-lab .nl-transport p{font:10px/1.6 var(--mono,monospace);color:var(--nl-soft);text-align:right}
.nuclear-lab .nl-steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;padding:2px 24px 10px}
.nuclear-lab .nl-steps button{display:flex;flex-direction:column;align-items:flex-start;gap:7px;text-align:left;color:var(--nl-soft);font-size:9px;line-height:1.45;padding:10px 7px;border-top:2px solid #2b3b48;min-height:70px}
.nuclear-lab .nl-steps button span{font:10px var(--mono,monospace);color:var(--nl-muted)}
.nuclear-lab .nl-steps button:hover:not(:disabled){background:#162833;color:var(--nl-text)}
.nuclear-lab .nl-steps button.is-current{border-top-color:var(--nl-mint);background:#16312f77;color:var(--nl-mint)}
.nuclear-lab .nl-steps button.is-current span{color:var(--nl-mint)}
.nuclear-lab .nl-motion-note{padding:0 24px 12px;color:var(--nl-soft);font-size:10px;line-height:1.7}
.nuclear-lab .nl-diagram-summary{padding:15px 24px 20px;color:var(--nl-muted);font-size:11px;line-height:1.9;border-top:1px solid #223440;background:#0c1822}
.nuclear-lab .nl-controls{border-left:1px solid var(--nl-line);padding:23px 21px;background:#111c28}
.nuclear-lab .nl-check{display:flex;align-items:flex-start;gap:9px;padding:11px 0;color:var(--nl-text);font-size:12px;cursor:pointer}
.nuclear-lab .nl-check input{accent-color:var(--nl-mint);margin:4px 0 0;flex:none;width:14px;height:14px}
.nuclear-lab .nl-check small,.nuclear-lab .nl-select small{display:block;font-size:10px;color:var(--nl-soft);line-height:1.8;font-weight:400;margin-top:5px}
.nuclear-lab .nl-select{display:block;color:var(--nl-text);font-size:11px;margin:14px 0 20px}
.nuclear-lab .nl-select select{display:block;width:100%;min-height:39px;padding:9px 9px;background:#0a1520;color:var(--nl-text);border:1px solid #3b535e;border-radius:5px;font-size:11px;margin-top:7px}
.nuclear-lab .nl-interpretation{border-top:1px solid var(--nl-line);padding-top:18px;margin-top:18px}
.nuclear-lab .nl-interpretation h4{font-size:13px;color:var(--nl-mint);font-weight:500;margin-bottom:9px}
.nuclear-lab .nl-interpretation p{font-size:11px;color:var(--nl-muted);line-height:1.9}
.nuclear-lab .nl-structure-links{margin-top:22px}
.nuclear-lab .nl-structure-links h4{font-size:10px;color:var(--nl-soft);font-weight:400;margin-bottom:8px}
.nuclear-lab .nl-structure-links button{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;text-align:left;border-top:1px solid var(--nl-line);padding:11px 0;font-size:12px;color:var(--nl-mint)}
.nuclear-lab .nl-structure-links button:hover{color:#d8fff3}
.nuclear-lab .nl-structure-links small{display:block;color:var(--nl-soft);font-size:9px;margin-top:2px}
.nuclear-lab .nl-structure-links b{font-size:16px;font-weight:400}
.nuclear-lab .nl-caution{border-top:1px solid var(--nl-line);border-bottom:1px solid var(--nl-line);padding:15px 29px;font-size:11px;line-height:1.9;color:#c5bfae;background:#2a251b33}
.nuclear-lab .nl-evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;padding:24px 29px}
.nuclear-lab .nl-evidence-grid>div+div{border-left:1px solid var(--nl-line);padding-left:26px}
.nuclear-lab .nl-evidence-grid span{display:block;font-size:9px;color:var(--nl-mint);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.nuclear-lab .nl-evidence-grid>div:last-child span{color:#e9bd7c}
.nuclear-lab .nl-evidence-grid p{font-size:11px;color:var(--nl-muted);line-height:1.8}
.nuclear-lab .nl-sources{padding:0 29px 21px}
.nuclear-lab .nl-sources summary{cursor:pointer;color:var(--nl-muted);font-size:11px;padding:11px 0;border-top:1px solid var(--nl-line)}
.nuclear-lab .nl-sources summary:hover{color:var(--nl-mint)}
.nuclear-lab .nl-sources ul{margin:0;padding:5px 0 0;list-style:none;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.nuclear-lab .nl-sources li{padding:14px;background:#111e29;border:1px solid #223845;border-radius:6px;min-width:0}
.nuclear-lab .nl-sources a{font-size:11px;color:var(--nl-mint);text-underline-offset:3px}
.nuclear-lab .nl-sources strong{font-weight:400;display:block;color:var(--nl-muted);font-size:10px;line-height:1.7;margin-top:8px}
.nuclear-lab .nl-sources p{font-size:10px;color:var(--nl-soft);line-height:1.8;margin-top:7px}
@media(min-width:1450px){.nuclear-lab .nl-workspace{grid-template-columns:minmax(0,1fr) 325px}.nuclear-lab .nl-controls{padding:25px}.nuclear-lab .nl-transport p{font-size:11px}.nuclear-lab .nl-steps button{font-size:10px}}
@media(max-width:1100px){.nuclear-lab .nl-workspace{grid-template-columns:minmax(0,1fr)}.nuclear-lab .nl-controls{border-left:0;border-top:1px solid var(--nl-line);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:28px;padding:24px}.nuclear-lab .nl-controls>.nl-eyebrow{grid-column:1/-1}.nuclear-lab .nl-controls>[data-part=controls]{grid-column:1}.nuclear-lab .nl-interpretation{grid-column:2;grid-row:2;margin-top:0;border-top:0;padding-top:10px}.nuclear-lab .nl-structure-links{grid-column:1/-1;margin-top:9px}.nuclear-lab .nl-structure-links>[data-part=links]{display:flex;gap:24px}.nuclear-lab .nl-structure-links button{flex:1}.nuclear-lab .nl-svg{min-width:680px}}
@media(max-width:700px){.nuclear-lab{border-radius:8px;margin:20px 0}.nuclear-lab .nl-header{padding:23px 20px;gap:12px;flex-wrap:wrap}.nuclear-lab .nl-model-tag{margin-top:0}.nuclear-lab .nl-tabs button{padding:12px 10px;align-items:flex-start;flex-direction:column;gap:4px;font-size:10px;min-height:72px}.nuclear-lab .nl-tabs button span{font-size:9px}.nuclear-lab .nl-scene-heading{padding:21px 20px}.nuclear-lab .nl-scene-heading h3{font-size:15px}.nuclear-lab .nl-scene-heading p{font-size:11px}.nuclear-lab .nl-legend{padding:15px 20px 7px;font-size:9px;gap:8px 12px}.nuclear-lab .nl-transport{margin:0 20px;flex-wrap:wrap;gap:9px}.nuclear-lab .nl-transport p{text-align:left}.nuclear-lab .nl-steps{padding:2px 16px 10px;gap:3px}.nuclear-lab .nl-steps button{font-size:8px;padding:8px 4px}.nuclear-lab .nl-motion-note{padding:0 20px 12px;font-size:9px}.nuclear-lab .nl-diagram-summary{padding:14px 20px;font-size:10px}.nuclear-lab .nl-controls{display:block;padding:22px 20px}.nuclear-lab .nl-interpretation{border-top:1px solid var(--nl-line);margin-top:18px;padding-top:18px}.nuclear-lab .nl-structure-links>[data-part=links]{display:block}.nuclear-lab .nl-structure-links{margin-top:20px}.nuclear-lab .nl-caution{padding:16px 20px;font-size:10px}.nuclear-lab .nl-evidence-grid{grid-template-columns:1fr;gap:17px;padding:22px 20px}.nuclear-lab .nl-evidence-grid>div+div{border-left:0;padding-left:0;border-top:1px solid var(--nl-line);padding-top:17px}.nuclear-lab .nl-sources{padding:0 20px 20px}}
@media(prefers-reduced-motion:reduce){.nuclear-lab button,.nuclear-lab *::before,.nuclear-lab *::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}