/* ChemiSode Galvanic Lab 2.0 — compact classroom interface */
:root { --ink:#173747; --aqua:#168d86; --shadow:0 4px 20px #234d5910; }
.topbar{height:57px;flex-basis:57px;padding:0 15px;gap:12px}
.brand{gap:9px}.brand-mark{width:37px;height:37px;border-radius:10px}.brand-mark svg{width:28px;height:28px}
.brand-type strong{font-size:19px;white-space:nowrap}.brand-mini{font-size:8px;letter-spacing:1.2px}.version-chip{padding:2px 5px;font-size:9px}
.view-switch{padding:3px;border-radius:9px}.view-switch button{padding:7px 12px;font-size:11px}
.top-actions{gap:6px}.utility-btn{padding:0 9px;min-height:34px;font-size:11px;border-radius:8px}.utility-btn svg{width:16px;height:16px}.icon-button{width:34px;min-height:34px}.top-actions #btn-help{display:none}
.label-toggle{font-size:11px;gap:7px}
.workbench{grid-template-columns:231px minmax(0,1fr);gap:9px;padding:9px;min-height:0;}
.sidebar{border-radius:14px;box-shadow:var(--shadow)}
.setup-panel{padding:14px 12px 12px;gap:8px;overflow:hidden}
.setup-panel .panel-heading{padding:0 3px 2px}.setup-panel .panel-heading h2{font-size:17px;letter-spacing:-.25px;margin:0}
.setup-panel .panel-heading .eyebrow,.side-description{display:none}
.halfcell-config{padding:9px 10px 8px;border-radius:11px;background:#fafdfd}
.halfcell-head{margin-bottom:7px}.halfcell-head strong{font-size:12px}.half-index{padding:3px 5px;font-size:9px}
.halfcell-config label{font-size:10px;letter-spacing:.15px;margin-bottom:3px}
.halfcell-config select{font-size:11.5px;padding:6px 24px 6px 9px;min-height:32px;margin-bottom:8px}
.halfcell-config select:last-of-type{margin-bottom:0}
.halfcell-config .conc-row{display:none}
.swap-line{margin:-3px 4px}.swap-btn{padding:4px 10px;font-size:10px}
.setup-bottom{gap:3px;margin-top:auto}.control-line{padding:8px 2px;gap:9px}
.control-symbol{width:28px;height:28px;font-size:18px}.control-line-text strong{font-size:11px}.control-line-text small{display:none}
.outline-wide{padding:8px 10px;margin-top:5px;font-size:11px}.outline-wide span{display:none}
.center-panel{gap:8px}
.stage-head,.stage-footer{display:none!important}
.stage-frame{border-radius:15px;padding:5px;box-shadow:var(--shadow)}
.stage-frame:before{background-size:26px 26px;opacity:.13}
.stage-floating,.reaction-mode{display:none!important}
.visual-macro{min-height:0}
.mode-both .visual-macro{flex:1 1 0}
.mode-both .visual-particles{height:121px;flex:0 0 121px;gap:7px;padding:0 0 14px}
.micro-card{border-radius:9px;background:#f5fafbe3}.micro-title{padding:4px 8px 0;font-size:9px}.micro-hint{font-size:9px}
.micro-bridge{bottom:0;font-size:9px;padding:3px 9px}
.minimal-status{position:absolute;top:10px;left:12px;z-index:3;background:#fffef4ef;border:1px solid #d8e7df;border-radius:25px;display:flex;align-items:center;gap:6px;padding:4px 6px 4px 12px;font-size:10.5px;font-weight:800;color:#477a74;box-shadow:0 2px 9px #224a5710;max-width:66%}
.minimal-status:before{content:"";display:block;width:6px;height:6px;flex:0 0 6px;border-radius:50%;background:#24ad95}
.minimal-status[data-mode="caution"]{border-color:#f1d69e;background:#fff8e9;color:#a16c2b}
.minimal-status[data-mode="caution"]:before{background:#dd9b44}
.minimal-status[data-mode="inactive"]{border-color:#d7e2e7;color:#6c8a95}
.minimal-status[data-mode="inactive"]:before{background:#9fb3bd}
.minimal-status>span{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.minimal-status button{padding:0 3px;border:0;background:transparent;color:inherit;font-size:14px;font-weight:850}
.quick-equations{flex:0 0 auto;min-width:0;border:1px solid #e0e9e9;border-radius:12px;background:#fff;padding:9px 14px 10px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:5px;}
.eq-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.eq-strip-title{color:#6a8d95;font-size:9px;font-weight:900;letter-spacing:1.2px}
.eq-reveal{border:0;background:none;padding:0;color:#158e87;font-size:10px;font-weight:750}
.quick-two{display:grid;grid-template-columns:1fr 1fr;gap:10px;min-width:0}
.quick-line{min-width:0;display:flex;align-items:center;gap:8px;padding:3px 0}
.quick-overall{display:flex;align-items:center;gap:8px;min-width:0;padding-top:7px;border-top:1px solid #e9f0f0}
.eq-tag{flex:0 0 70px;font-size:9px;color:#7e9199;font-weight:850;letter-spacing:.3px;white-space:nowrap}
.eq-tag.ox{color:#be8455}.eq-tag.red{color:#159581}
.quick-equation{font-size:11.5px;font-weight:680;min-width:0;white-space:normal;overflow-wrap:normal;line-height:1.35}
.quick-overall .quick-equation{font-size:12px;font-weight:750}
.eq-details{margin-left:auto;background:#ebf5f3;color:#287c79;border:0;border-radius:7px;padding:5px 8px;white-space:nowrap;font-size:10px;font-weight:800}
.quick-equations.local-only .eq-strip-title{color:#a77b50}
.transport-bar{height:56px;flex-basis:56px;padding:0 15px}
.run-btn{height:37px;min-width:107px}.transport-btn{height:37px;width:38px}
.transport-time span{font-size:9px}.transport-time strong{font-size:17px}
.speed-control{display:none}.transport-tools{height:37px}
/* All advanced science remains available, but only as an optional slide-over. */
.data-panel{position:fixed;z-index:15;right:0;top:0;bottom:0;width:min(420px,94vw);transform:translateX(105%);transition:transform .22s ease;box-shadow:-14px 0 45px #082b3e33;border-radius:17px 0 0 17px;padding:17px;gap:11px;overflow:hidden}
.data-panel.panel-open{transform:translateX(0);visibility:visible;pointer-events:auto}
.data-panel:not(.panel-open){visibility:hidden;pointer-events:none}
.data-panel .sidebar-close{display:inline-flex;background:#f3f8f9;color:#396a79;border:1px solid #dfeaed;font-size:26px;width:32px;height:32px;min-height:32px}
.data-panel .panel-heading h2{font-size:18px;margin:0}
.data-panel .panel-heading .eyebrow{display:none}
.data-panel .inspector-body{overflow-y:auto;padding-bottom:8px}
.science-notes{border:1px solid #e4ebee;border-radius:9px;padding:10px;background:#f8fbfc;margin-top:12px;font-size:11px;color:#5b7987}
.science-notes summary{font-weight:750;cursor:pointer;color:#447480}
.science-notes p{font-size:11px;margin:8px 0 2px;line-height:1.5}
.mobile-challenges{display:none}
/* short desktop screens */
@media (max-height:730px) and (min-width:851px){
 .setup-panel{padding:10px;gap:4px}.halfcell-config{padding:7px 9px}.halfcell-config select{min-height:28px;padding-top:4px;padding-bottom:4px;margin-bottom:4px}.halfcell-head{margin-bottom:4px}.setup-bottom .control-line{padding:4px 2px}
 .mode-both .visual-particles{height:95px;flex-basis:95px}.quick-equations{padding:7px 12px;gap:3px}.quick-overall{padding-top:4px}
}
@media (max-width:1120px){
 .topbar{padding:0 11px;gap:8px}.version-chip{display:none}
 .brand-mini{display:none}.brand-type strong{font-size:18px}
 .top-actions{gap:4px}.top-actions .utility-btn{padding:0 7px}
 .top-actions .utility-btn span{display:none}.top-actions .utility-btn{width:34px}
 .view-switch button{padding:8px 10px}
}
/* Collapse only SETUP to a drawer; Explore is always a drawer. */
@media (max-width:850px){
 .topbar{height:52px;flex-basis:52px;padding:0 9px}
 .workbench{display:block;padding:7px}.center-panel{height:100%;gap:7px}
 .setup-panel{position:fixed;z-index:15;top:6px;bottom:6px;left:0;width:min(324px,88vw);transform:translateX(-105%);overflow-y:auto;box-shadow:0 16px 55px #082b3e40;border-radius:0 16px 16px 0;padding:17px}
 .setup-panel.panel-open{transform:translateX(0)}.setup-panel .sidebar-close{display:inline-flex;color:#446a7d;border:1px solid #d4e6ea;background:#fff;min-height:31px;width:31px;font-size:25px}
 .setup-bottom{margin-top:13px}
 .top-actions .utility-btn{display:inline-flex}
 .top-actions #btn-help{display:none}
 .mode-both .visual-particles{height:128px;flex-basis:128px}
 .transport-bar{height:53px;flex-basis:53px}
}
@media (max-width:620px){
 .topbar{gap:5px;padding:0 6px}.brand{gap:4px}.brand-mark{display:none}.brand-type strong{font-size:16px}.brand-type strong span{display:none}
 .brand .icon-button{width:27px;min-height:31px;padding:0}
 .view-switch button{font-size:0!important;padding:7px 8px!important}.view-switch button[data-view="macro"]:after{content:"Macro";font-size:10px}.view-switch button[data-view="both"]:after{content:"Both";font-size:10px}.view-switch button[data-view="particle"]:after{content:"Ions";font-size:10px}
 .top-actions{gap:3px}.top-actions .utility-btn{width:29px;min-height:30px;padding:0}.top-actions .utility-btn svg{width:15px;height:15px}
 .top-actions #btn-challenge{display:none}.top-actions .label-toggle{gap:0}.top-actions .label-toggle>span:first-child{display:none}.toggle-track{width:30px;height:19px}.toggle-track:before{width:13px;height:13px}.label-toggle input:checked+.toggle-track:before{transform:translateX(11px)}
 .top-actions #open-analysis{display:none!important}
 .quick-equations{padding:8px 10px;gap:4px}.quick-two{grid-template-columns:1fr;gap:0}.quick-line{padding:1px 0}.quick-equation{font-size:10.5px}.quick-overall .quick-equation{font-size:11px}.eq-tag{flex-basis:67px;font-size:8px}.eq-details{font-size:9px;padding:4px 6px}
 .minimal-status{top:6px;left:6px;font-size:9px;padding:3px 5px 3px 8px}
 .mode-both .visual-particles{flex-direction:column;height:155px;flex-basis:155px;gap:3px;padding-bottom:14px}.mode-both .micro-card{min-height:0}.mode-both .micro-title{font-size:8px;padding:2px 7px 0}
 .transport-time{display:none}.transport-bar{padding:0 10px}.transport-tools span{display:none}.mobile-challenges{display:inline-flex;width:37px;justify-content:center}
 .transport-tools{padding:7px}
}
@media (max-height:560px){
 .topbar{height:45px;flex-basis:45px}.transport-bar{height:44px;flex-basis:44px}.quick-equations{padding:5px 9px;gap:2px}.quick-overall{padding-top:3px}
 .mode-both .visual-particles{display:none}.mode-both .visual-macro{flex:1 1 auto}
 .micro-bridge{display:none}
}
@media (max-width:380px){.brand-type strong{font-size:14px}.view-switch button{padding:7px 6px!important}.top-actions #btn-settings-quick{display:inline-flex}}

@media (max-width:345px){.brand-type strong{display:none}.top-actions #btn-series-quick{display:none}.view-switch button{padding:7px 5px!important}}

/* v2.1: protect equation panel and transport when the viewport is short. */
.workbench,.center-panel,.stage-frame{min-height:0;min-width:0}
.center-panel{overflow:hidden}
.quick-equations{padding:7px 12px 8px;gap:3px;overflow:visible}
.quick-line{padding:2px 0;line-height:1.2}
.quick-overall{padding-top:4px}
.quick-equation{line-height:1.26}
@media (max-height:790px) and (min-width:621px){
 .quick-equations{padding:6px 11px;gap:2px}
 .quick-overall{padding-top:3px}
 .transport-bar{height:50px;flex-basis:50px}
 .mode-both .visual-particles{height:95px;flex-basis:95px}
}
@media (max-width:620px){
 .quick-equations{overflow:visible;padding:6px 9px;gap:2px}
 .quick-line{padding:1px 0}
 .quick-overall{padding-top:3px}
}
@media (max-height:590px){
 .quick-equations{padding:4px 8px}
 .quick-equation,.quick-overall .quick-equation{font-size:10px}
 .transport-bar{height:42px;flex-basis:42px}
}

/* v2.2 particle focus: move banners off the actual particle canvases. */
.stage-frame.mode-particle .minimal-status{display:none}
.stage-frame.local-particle .micro-bridge{display:none}
.stage-frame.mode-particle .visual-particles{padding-bottom:7px}
.stage-frame.mode-particle .micro-bridge{display:none}
.stage-frame.mode-particle .micro-hint{font-weight:760;color:#567f83}
.stage-frame.mode-particle .micro-title{gap:8px}
.stage-frame.mode-particle .micro-card{box-shadow:inset 0 1px 0 #fff}
.stage-frame.mode-particle .micro-card canvas{min-height:0}
@media(max-width:620px){
 .stage-frame.mode-particle .visual-particles{padding:4px 2px 4px;gap:5px}
 .stage-frame.mode-particle .micro-title{padding:5px 8px 1px;font-size:10px}
 .stage-frame.mode-particle .micro-hint{font-size:9px}
}