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@media(max-width:1180px){.app-shell{grid-template-columns:220px minmax(0,1fr)}.workspace{padding:25px 25px 0}.sidebar{padding:30px 10px}.field-split{grid-template-columns:1.75fr 1fr;gap:16px}.inspector{padding:18px}.inspector h2{font-size:24px}.specimen-icon{font-size:38px;margin:5px 0}.lab-grid{grid-template-columns:265px minmax(0,1fr);gap:15px}.panel{padding:22px}.edition{display:none}.food-chain{gap:13px}.investment-grid{grid-template-columns:repeat(2,1fr)}.options{flex-direction:column}.option{min-height:44px}.concept-strip{gap:12px}.lab-animals{font-size:18px;gap:8px}}
@media(max-width:960px){.app-shell{display:block}.sidebar{display:block;padding:14px 22px;border-right:0;border-bottom:1px solid var(--line)}.sidebar-label,.sidebar-note,.sidebar-bottom{display:none}#nav{display:flex;gap:6px;overflow-x:auto;padding-bottom:3px}.nav-item{width:auto;flex:1;min-width:145px;margin:0;padding:9px 10px;gap:7px}.nav-item small{display:none}.nav-item b{font-size:11px}.nav-number{min-width:25px;height:25px;font-size:10px}.workspace{padding:24px 27px 0}.topbar{padding:0 27px;height:75px}.field-split{grid-template-columns:2fr 1fr}.lab-grid{grid-template-columns:280px minmax(0,1fr)}.scene-toolbar{padding:13px 16px}.habitat{min-height:0;display:block}.landscape{min-height:0}.inspector p{font-size:12px}.scene-caption{font-size:11px}.latitude-grid{gap:16px}}
@media(max-width:700px){.topbar{height:73px;padding:0 18px;gap:10px}.brand-mark{font-size:29px}.brand{gap:8px}.brand strong{font-size:16px}.brand small{font-size:8px}.top-actions{gap:8px}.top-actions .text-button{font-size:10px}.notebook-button{font-size:10px;padding:8px 10px;min-height:38px}.sidebar{padding:10px 12px}.nav-item{min-width:133px}.workspace{padding:20px 18px 0}.workspace-top{margin-bottom:22px}.breadcrumb{font-size:9px;letter-spacing:0}.breadcrumb span{margin:0 4px}.read-button{font-size:10px}.page-heading{margin-bottom:22px}.eyebrow{font-size:9px;margin-bottom:12px}h1{font-size:39px;letter-spacing:-1.4px}h2{font-size:22px}.lede{font-size:13px}.split,.field-split,.lab-grid,.argument-grid{grid-template-columns:1fr;gap:16px}.inspector{display:block;padding:21px}.specimen-icon{float:right;font-size:47px;margin:12px 2px 0}.inspector h2{font-size:28px}.inspector p{font-size:13px}.rule{margin:13px 0 10px}.inspector .small{margin-bottom:0}.concept-strip{grid-template-columns:1fr;gap:15px;padding:10px 0 23px}.concept-strip div{display:flex;align-items:center;gap:14px}.concept-strip b{min-width:91px}.concept-strip span{margin:0}.sort-panel{grid-template-columns:1fr;gap:12px}.sort-panel p:last-child{margin-bottom:0}.sort-panel h2{max-width:none}.panel{padding:21px}.next-row{align-items:stretch;flex-direction:column;gap:15px}.next-row>span{font-size:17px}.next-row button{align-self:flex-start}.callout{padding:20px}.lab-grid .controls{display:block}.controls .preset-row button{flex:1}.chart-head select{max-width:58%}.food-chain{gap:25px}.lab-animals{font-size:21px}.chart{min-height:160px}.chain{flex-direction:column;gap:8px;align-items:stretch}.chain>i{text-align:center;transform:rotate(90deg)}.chain>div{padding:14px}.chain span{margin-top:4px}.investment-grid{grid-template-columns:1fr}.council-banner{padding:22px;gap:15px;align-items:flex-start}.council-banner h2{font-size:23px}.budget{width:80px;height:80px;min-width:80px}.budget b{font-size:24px}.budget span{font-size:8px}.council-banner p{font-size:12px}.evidence-shelf{max-height:none}.site-footer{font-size:9px}.site-footer>span{max-width:67%}.planet-panel{padding:22px}.planet-panel svg{max-height:300px}dialog{padding:20px;max-height:92vh}.teacher-content table{font-size:11px}.teacher-content td,.teacher-content th{padding:7px}.hotspot{width:33px;height:33px;min-height:33px}.spot-label{display:none!important}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
@media print{body{background:#fff!important;color:#111!important}.topbar,.app-shell,#toast,dialog:not([open]),.no-print,.dialog-close{display:none!important}dialog[open]{position:static;display:block;max-width:none;width:100%;max-height:none;overflow:visible;border:0;box-shadow:none;background:white;padding:0;margin:0}dialog::backdrop{display:none}#notebook input{border:0;font-weight:bold;font-size:18px;padding:0}#notebook .small{color:#333}.evidence-card,.written-response{break-inside:avoid;box-shadow:none}#notebook-body h2{font-size:25px}.evidence-card p{font-size:11px}.notebook-summary{background:#eee}a{color:#111}textarea{height:auto}}


/* Shared unit chooser and adaptations investigations. */
.unit-tabs{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:15px 38px;background:#eef1e5;border-bottom:1px solid var(--line)}
.unit-tabs>span{font-size:9px;letter-spacing:1.2px;font-weight:800;margin-right:12px;color:var(--muted)}
.unit-tabs button{font-size:12px;padding:9px 16px;border-radius:24px;background:transparent}
.unit-tabs button[aria-pressed=true]{background:var(--forest);color:var(--white);border-color:var(--forest)}
.adapt-illustration{font-size:72px;text-align:center;padding:12px;background:#eef2e5;border-radius:12px;margin:20px 0}
.bill-figure{max-width:350px;margin:18px auto;background:#e7edde;border-radius:12px;overflow:hidden}
.bill-figure svg,#moth-scene svg{width:100%;display:block}
#run-bill{margin-top:18px}
.defense-example{display:flex;gap:15px;border-bottom:1px solid var(--line);padding:14px 0}
.defense-example>span{font-size:27px;min-width:38px}.defense-example b{font-size:13px}.defense-example p{font-size:12px;margin:5px 0 0}
.life-stage-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:24px 0}
.life-stage-grid article{background:#edf1e4;padding:20px;border-radius:12px;min-width:0}
.life-stage-grid article>span{display:block;font-size:43px;margin-bottom:14px}.life-stage-grid small{font-size:9px;color:var(--muted);letter-spacing:1px}.life-stage-grid h3{font-size:15px;margin:9px 0}.life-stage-grid p{font-size:12px;line-height:1.7;margin:0}
.generation-link{background:var(--forest);color:var(--white);padding:18px 22px;border-radius:12px;margin:18px 0}.generation-link b{font-size:14px}.generation-link p{font-size:12px;color:#e3eacf;margin:8px 0 0}
.cycle-sort{margin:25px 0}.stage-answer{display:flex;gap:32px;flex-wrap:wrap;padding-left:22px;font-size:13px}.cycle-sort .text-button{margin-top:15px}
#bill-results th,#bill-results td{white-space:normal}#season-card .pill{white-space:normal}
@media(max-width:1180px){.life-stage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.unit-tabs{padding:12px 18px;gap:8px}.unit-tabs>span{width:100%;font-size:8px}.unit-tabs button{font-size:10px;flex:1;padding:8px 10px;line-height:1.5}.life-stage-grid{gap:10px}.life-stage-grid article{padding:15px}.life-stage-grid h3{font-size:13px}.life-stage-grid p{font-size:11px}.generation-link{padding:17px}.stage-answer{flex-direction:column;gap:8px}.adapt-illustration{font-size:55px}}
@media(max-width:380px){.life-stage-grid{grid-template-columns:1fr}}
@media print{.unit-tabs{display:none!important}}

/* Reuse the lab for successive classes on the same browser. */
.reset-button{white-space:nowrap}.reset-options{display:flex;gap:12px;flex-wrap:wrap}.reset-options button{flex:1;min-width:145px}#reset{max-width:620px}#reset p{font-size:13px}#reset .small{font-size:11px;margin-top:18px}
@media(max-width:700px){.topbar{height:auto;min-height:73px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px}.top-actions{width:100%;justify-content:space-between}.top-actions .reset-button{font-size:10px}}

/* Student accounts, hands-on models and reports. */
.science-identity{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 38px;background:#fffdf6;border-bottom:1px solid var(--line);font-size:13px}.science-identity small{display:block;margin-top:5px;color:var(--muted);font-size:11px}.science-identity>div{display:flex;gap:8px}.science-identity button{font-size:12px;white-space:nowrap}#science-connection-status:empty{display:none}#science-connection-status{padding:10px 38px;margin:0;background:#fff2ca}#science-dialog{width:min(780px,94vw)}#science-dialog label{display:block;margin:14px 0 6px}#science-dialog input{width:100%}#science-dialog .written-response p{white-space:pre-wrap}#science-dialog .button-row{margin-top:22px}.beak-picks{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.beak-picks button{padding:8px 5px;min-width:0;font-size:12px}.beak-picks svg{display:block;width:100%;height:86px}.beak-picks button[aria-pressed=true],.button-row button[aria-pressed=true],.season-tabs button[aria-pressed=true]{border:2px solid var(--forest);background:#e1ecd1}.bite-tokens{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}.bite-tokens span{display:grid;place-items:center;aspect-ratio:1;border-radius:50%;font-weight:bold;font-size:22px}.bite-good{background:#dcecca;color:#244832}.bite-miss{background:#eee9df;color:#786b58}.food-result-row{display:grid;grid-template-columns:52px 1fr 45px;align-items:center;gap:10px;margin:12px 0;font-size:12px}.result-track,.energy-meter{height:18px;background:#e6e6db;border-radius:20px;overflow:hidden}.result-track i,.energy-meter i{display:block;height:100%;background:#65894a;transition:width .3s}.is-feeding{animation:peck .32s ease-in-out infinite alternate}@keyframes peck{to{transform:rotate(4deg) translateY(4px)}}.turtle-demo{height:155px;position:relative;max-width:260px;margin:20px auto}.turtle-shell{position:absolute;z-index:2;left:50px;top:20px;width:140px;height:100px;border-radius:50%;background:#668a44;border:8px solid #385b38;color:#adc681;font-size:70px;text-align:center;line-height:80px}.turtle-head{position:absolute;left:180px;top:48px;border-radius:50%;background:#95a963;color:#233f28;width:55px;height:48px;text-align:right;padding:4px 8px;font-size:16px;transition:transform .5s}.turtle-feet{position:absolute;left:70px;top:100px;font-size:30px;color:#6a864d;transition:transform .5s}.tucked .turtle-head{transform:translateX(-60px)}.tucked .turtle-feet{transform:translateY(-35px)}.moth-hunt{position:relative;height:280px;border-radius:14px;margin:20px 0;overflow:hidden}.hunt-moth{position:absolute;transform:translate(-50%,-50%);width:45px;height:45px;min-height:45px;padding:0;border:2px solid transparent;background:transparent!important}.hunt-moth svg{width:100%;height:100%}.hunt-moth.found{border-color:#e8c15b;border-radius:50%}.hunt-moth.revealed{outline:2px dashed #bf5b31;border-radius:50%}.hunt-moth:focus-visible{outline:3px solid #1d7ace}.season-tabs{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}.season-tabs button{flex:1}.simple-check{display:flex!important;align-items:center;gap:8px;font-size:13px;margin:20px 0}.simple-check input{width:20px;height:20px}.migration-route{display:flex;justify-content:space-between;border-bottom:3px dashed #b0bda0;margin:25px 0;padding-bottom:12px;gap:8px}.route-stop{text-align:center}.route-stop span{display:block;font-size:24px}.route-stop small{font-size:10px}.route-stop.here{color:#315e36;font-weight:bold}.winter-demo{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:25px 0}.winter-demo>div{min-width:0}.winter-demo span{display:block;font-size:40px;margin-bottom:10px}.winter-demo b{display:block;font-size:13px;margin-bottom:15px}.winter-demo p{font-size:12px}button:disabled{cursor:default;opacity:.65}
@media(max-width:700px){.science-identity{padding:13px 18px;align-items:flex-start;flex-wrap:wrap}.science-identity>div{width:100%}.science-identity button{min-height:42px}.beak-picks svg{height:65px}.season-tabs button{min-width:90px;font-size:12px}.moth-hunt{height:250px}.hunt-moth{width:38px;height:38px;min-height:38px}}
@media print{.science-identity,#science-connection-status{display:none!important}#science-dialog .written-response{break-inside:avoid;border-bottom:1px solid #ccc;margin:15px 0}#science-dialog p{white-space:pre-wrap}}

.science-notebook-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0 0 16px;padding:10px 12px;border:1px solid #ccd7c8;border-radius:12px;background:#f4f7ed}.science-notebook-tools button{font-size:13px}.science-notebook-tools button:disabled{opacity:.45;cursor:default}.top-actions{flex-wrap:wrap}@media(max-width:700px){.science-notebook-tools .small{width:100%}.top-actions{gap:5px}.top-actions button{font-size:12px;padding:8px}}

/* Reading stays in short, reopenable sections before each existing investigation. */
.lesson-reading{margin:0 0 32px}.reading-intro,.investigate-next{max-width:72ch;padding:16px 0}.reading-intro p,.investigate-next p{line-height:1.65}.reading-section{margin:14px 0;border:1px solid #bdcdc1;border-radius:14px;background:#fffef7;overflow:hidden}.reading-section>summary{padding:20px;font-weight:750;cursor:pointer;font-size:1.15rem}.reading-section>summary span{display:block;font-size:.82rem;font-weight:400;margin:7px 0 0 20px}.reading-section>article{padding:0 24px 24px;max-width:78ch;margin:auto}.reading-prose{font-size:1.06rem;line-height:1.8}.reading-prose p{margin:0 0 18px}.reading-vocabulary{line-height:1.6}.reading-vocabulary>div{display:grid;grid-template-columns:minmax(110px,1fr) 3fr;gap:14px;padding:9px 0;border-bottom:1px solid #dbe4dc}.reading-vocabulary dt{font-weight:750;text-transform:capitalize}.reading-vocabulary dd{margin:0}.reading-check{border-top:1px solid #bdcdc1;padding-top:22px}.reading-check li{margin:12px 0;line-height:1.6}.reading-check textarea,.lesson-final textarea{width:100%;min-height:110px;font:inherit;line-height:1.6;box-sizing:border-box}.reading-check label,.final-response label{display:block;font-weight:700;line-height:1.7;margin:12px 0}.lesson-final{margin-top:32px}.lesson-data{margin:20px 0;line-height:1.7}.lesson-data svg{width:100%;max-width:680px;height:auto;background:white}.lesson-data svg text{font:14px system-ui;fill:#183d31}.lesson-data table{width:100%}.lesson-data th,.lesson-data td{padding:12px;text-align:left}.lesson-data caption{text-align:left;padding:12px 0}.final-response{padding:18px 0;border-top:1px solid #bdcdc1}.lesson-final .chart-legend{flex-wrap:wrap}.reading-section:focus-within{border-color:#41765b}.reading-section summary:focus-visible{outline:3px solid #14745d;outline-offset:-4px}
@media(max-width:600px){.reading-section>article{padding:0 16px 18px}.reading-section>summary{padding:16px}.reading-vocabulary>div{grid-template-columns:1fr;gap:2px}.lesson-final{padding:18px}.lesson-data th,.lesson-data td{padding:8px}.reading-prose{font-size:1rem;line-height:1.75}}
.sequential-item>label{font-size:1.2rem;line-height:1.5;font-weight:750}.question-count{font-weight:800;font-size:1.1rem;color:#365a39}.question-actions{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.question-actions button,.lesson-quiz button{min-height:48px;font-size:1rem;padding:12px 18px}.quick-feedback{background:#f4efd6;border-left:5px solid #ad852d;padding:18px;margin:16px 0;font-size:1.05rem}.quick-status,.question-help{font-size:1rem;line-height:1.6}.lesson-quiz{margin:24px 0;padding:24px;border:2px solid #8ca98f;border-radius:16px}.lesson-quiz textarea{width:100%;box-sizing:border-box;font:inherit;min-height:140px}.lesson-quiz article{margin:20px 0;padding-bottom:18px;border-bottom:1px solid #cbd5c6}.earlier-answer{margin:20px 0;padding:14px;background:#f6f2e5}.earlier-answer p{white-space:pre-wrap}.practice-reward{font-size:1rem;font-weight:750;background:#fff0ad;padding:10px 14px;border-radius:8px;margin:12px 0}.question .feedback{font-size:1.05rem;line-height:1.6}.question .option:disabled{cursor:default}.reading-check .quick-feedback p{margin-bottom:0}@media(max-width:600px){.lesson-quiz{padding:16px}.question-actions button{width:100%}}

/* The feeding model shows individual birds and one portion per bird. */
.niche-intro{margin-bottom:24px}.niche-workspace{align-items:start}.niche-controls h3,.niche-result h3{margin-top:0}.niche-controls select{width:100%;min-width:0}.niche-food{border:1px solid var(--line,#ccd7cf);border-radius:10px;padding:12px;margin:20px 0}.niche-food legend{font-weight:700;padding:0 5px}.niche-food label{display:flex;align-items:center;gap:9px;margin:0;min-height:48px;font-size:14px}.niche-food input{width:20px;height:20px;flex:none;accent-color:#246852}.niche-result p{font-size:14px;line-height:1.6}.niche-result .niche-forest{padding:12px;margin:16px 0;background:#f0f4e9}.niche-area{padding:10px;border-radius:8px;background:#dcebd9}.niche-area+.niche-area{margin-top:14px}.niche-area.ground{background:#eee6d4}.niche-area h4{margin:0;font-size:16px}.niche-area p{margin:8px 0}.niche-portions{display:flex;flex-wrap:wrap;gap:5px}.niche-portions span{display:grid;place-items:center;width:25px;height:25px;border:1px solid #355a43;border-radius:50%;background:#fffdf5;color:#355a43;font-size:16px;font-weight:700}.niche-portions .used{background:#355a43;color:white}.niche-flock{margin-top:13px}.niche-flock>b{font-size:13px;color:#203d32}.niche-birds{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:3px;margin-top:6px}.niche-bird{display:flex;flex-direction:column;align-items:center;background:#fffef8;border:1px dashed #66756a;border-radius:5px;padding:3px 0}.niche-bird.fed{border:2px solid #355a43;padding:2px 0}.niche-bird svg{width:100%;max-width:40px;height:29px}.niche-flock.blue svg{color:#226591}.niche-flock.orange svg{color:#a74619}.niche-bird small{font-size:15px;line-height:20px;color:#203d32;font-weight:700}.niche-result .two-stats span{font-size:13px;color:#203d32}.niche-activity button:disabled{opacity:.6;cursor:not-allowed}.niche-activity .callout h3{margin-top:0}.niche-activity :focus-visible{outline:3px solid #215f92;outline-offset:3px}

.latitude-choices{margin-bottom:24px}.latitude-choices input[type=range]{width:100%}.latitude-choices .preset-row button{min-height:44px;font-size:14px}.earth-investigation{margin-bottom:24px}.earth-investigation #globe{max-width:700px;margin:auto}.earth-investigation svg{display:block;width:100%;height:auto}.earth-investigation svg text{fill:#243e38;font:17px sans-serif}.earth-actions{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0}.earth-actions button{min-height:48px;font-size:16px}.earth-map-key{font-size:13px;line-height:1.6}.earth-investigation meter{display:block;width:100%;max-width:500px;height:30px;accent-color:#ba8015}.earth-investigation details{margin:20px 0}.earth-investigation summary{cursor:pointer;font-weight:700;line-height:1.6}.earth-investigation #earth-observation{border-left:4px solid #b87914;background:#f8f2df;padding:12px 18px}.earth-investigation :focus-visible{outline:3px solid #215f92;outline-offset:3px}

/* Small direct entry to the existing authenticated teacher workspace. */
.top-actions .teacher-page-link{display:inline-flex;align-items:center;min-height:44px;padding:8px;font-size:13px;white-space:nowrap}

/* Yearly sky model remains readable and clippable on phones. */
.revolution-figure{max-width:480px;margin:1.2rem auto}.revolution-figure svg{display:block;width:100%;height:auto}.revolution-figure figcaption{font-size:.95rem;line-height:1.5;margin-top:.5rem}

.light-figure{max-width:480px;margin:1rem auto}.light-figure svg{display:block;width:100%;height:auto}.light-source-control{display:flex;align-items:center;gap:.65rem;min-height:48px;margin-top:.75rem}.light-source-control input{width:24px;height:24px}

.course-color-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.course-color-cards article{border:1px solid #879c8d;padding:1rem;border-radius:.7rem}.course-color-swatch{height:60px;border:1px solid #647a70;border-radius:.3rem}@media(max-width:600px){.course-color-cards{grid-template-columns:1fr}}

.motion-figure{max-width:520px;margin:1rem auto}.motion-figure svg{display:block;width:100%;height:auto}

.force-figure{max-width:420px;margin:1rem auto}.force-figure svg{display:block;width:100%;height:auto}