#chemicals-simulation{--chemicals-green:#7ce0d3;--chemicals-muted:#a9bdc8;background:#0a1822;color:#ecf5f8;border:1px solid #34505f;border-radius:20px;padding:clamp(18px,3vw,42px);margin:30px 0;font-family:system-ui,sans-serif}#chemicals-simulation *{box-sizing:border-box}.chemicals-heading{display:flex;justify-content:space-between;gap:24px;align-items:center}.chemicals-kicker,.chemicals-map-top,.chemicals-boundary{font-size:11px;letter-spacing:1.7px;font-weight:700}.chemicals-heading h2{font-size:clamp(32px,4vw,56px);line-height:1.04;margin:16px 0;color:#fff}.chemicals-heading h2 span{color:var(--chemicals-green)}.chemicals-heading p,.chemicals-map-note{color:var(--chemicals-muted)}.chemicals-badge{border:1px solid #4b6d57;padding:16px;color:var(--chemicals-green);font-size:12px;line-height:1.8;border-radius:8px}.chemicals-badge small{color:var(--chemicals-muted)}.chemicals-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:26px}#chemicals-simulation button,#chemicals-simulation select{font:inherit;padding:10px 13px;border:1px solid #526b7a;border-radius:6px;color:#ecf5f8;background:#142c3a;cursor:pointer}#chemicals-simulation button:focus-visible,#chemicals-simulation select:focus-visible,#chemicals-simulation input:focus-visible{outline:3px solid #7ce0d3;outline-offset:3px}#chemicals-simulation #chemicals-play{background:var(--chemicals-green);color:#102012;font-weight:750}.chemicals-toolbar label{font-size:13px}#chemicals-audio-status{font-size:12px;color:var(--chemicals-muted);min-height:18px}.chemicals-layout{display:grid;grid-template-columns:1.05fr 1fr;gap:28px;margin:24px 0}.chemicals-map{border:1px solid #284453;border-radius:12px;padding:20px;background:radial-gradient(ellipse at 40% 70%,#123e41,transparent 65%),#0b1f2c}.chemicals-map-top{display:flex;justify-content:space-between;color:var(--chemicals-muted);gap:12px}.chemicals-network{max-width:360px;margin:20px auto;text-align:center}.chemicals-node{padding:12px;border:1px solid #527369;border-radius:7px;background:#102a30;font-size:14px;transition:border-color .4s,background .4s}.chemicals-node small{display:block;color:#b9cbd3;font-size:11px;margin-top:5px}.chemicals-wire{height:18px;width:2px;background:#7ce0d3;margin:auto}.chemicals-boundary{color:#edbd6c;border-top:1px dashed #947750;border-bottom:1px dashed #947750;margin:15px -8px;padding:9px 0;font-size:9px}.chemicals-panels{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:14px 0}.chemicals-panel{height:34px;border:1px solid #8ac49e;transform:skew(-12deg);background:repeating-linear-gradient(90deg,transparent 0 13px,#476e73 14px 15px),repeating-linear-gradient(0deg,#184153 0 10px,#476e73 11px 12px);transition:opacity .5s}.chemicals-panel.off{opacity:.25}.chemicals-node.alert{border-color:#ff896f;background:#482721}.chemicals-node.isolated{border-color:#edbd6c;background:#34301c}.chemicals-map-note{font-size:11px;margin-bottom:0}.chemicals-story h3{font-size:28px;line-height:1.2;margin:14px 0}.chemicals-story>p{line-height:1.7}#chemicals-caption{min-height:170px;color:#cfdee6}.chemicals-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-block:1px solid #34505f;padding:20px 0}.chemicals-metrics strong{display:block;color:var(--chemicals-green);font-size:clamp(19px,2.2vw,28px)}.chemicals-metrics span{display:block;color:var(--chemicals-muted);font-size:11px;margin-top:6px}#chemicals-action{font-size:13px;color:#edbd6c}#chemicals-stages{display:flex;gap:8px;flex-wrap:wrap}#chemicals-stages button{flex:1;font-size:12px;text-align:left;min-width:120px}#chemicals-stages button[aria-current=step]{border-color:var(--chemicals-green);color:var(--chemicals-green)}.chemicals-evidence{border-top:1px solid #34505f;margin-top:25px;padding-top:20px;font-size:13px;color:#c4d4dd;line-height:1.7}.chemicals-evidence summary{cursor:pointer;color:#fff}.chemicals-evidence a{color:#7ce0d3}@media(max-width:760px){.chemicals-layout{grid-template-columns:1fr}.chemicals-heading{display:block}.chemicals-badge{display:inline-block;margin-top:10px}#chemicals-caption{min-height:0}.chemicals-toolbar{align-items:flex-start}}@media(prefers-reduced-motion:reduce){#chemicals-simulation *{transition:none!important}}

@keyframes chemicals-flow{0%,100%{opacity:.35}50%{opacity:1;box-shadow:0 0 12px #7ce0d3}}@media(prefers-reduced-motion:no-preference){.is-playing .chemicals-wire{animation:chemicals-flow 1.8s ease-in-out infinite}}


.chemicals-badge small{display:block}.chemicals-plant{width:100%;height:110px;margin-top:10px}#chemicals-simulation table{width:100%;text-align:left}#chemicals-simulation th,#chemicals-simulation td{padding:8px;border-bottom:1px solid #34505f}

#chemicals-clock{white-space:nowrap}


/* Silent establishing shot; narration and controls stay visible. */
.chemicals-map{position:relative;overflow:hidden;isolation:isolate}
.chemicals-intro{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:2;opacity:0;pointer-events:none;transition:opacity 1s ease;background:#0b1f2c}
.chemicals-intro.is-visible{opacity:1}