/* Atomic learning tasks: diagrams and actions are never separated into pages. */
.lesson-number-entry{width:min(100%,320px);margin:auto;display:flex;flex-direction:column;gap:8px}.lesson-number-pad{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.lesson-number-pad .lesson-number-key{min-height:44px;padding:7px;font:600 21px/1.15 system-ui;border-radius:10px;touch-action:manipulation}.lesson-number-entry .lesson-number-clear{min-height:36px;padding:6px;font-size:14px}.lesson-number-entry input[readonly]{min-height:48px;padding:8px 12px;text-align:right;caret-color:transparent}.lesson-number-key:active{background:#d9eef0;transform:scale(.97)}
@media(max-height:650px){.lesson-number-entry{gap:5px}.lesson-number-pad{gap:4px}.lesson-number-pad .lesson-number-key{min-height:40px;padding:4px}.lesson-number-entry .lesson-number-clear{min-height:30px;padding:3px}.lesson-number-entry input[readonly]{min-height:42px}}
#panel.lesson-dialog section{width:min(1280px,98vw);height:calc(100dvh - 16px);padding:14px 18px;overflow:hidden;display:flex;flex-direction:column;max-height:none}
#panel.lesson-dialog section:before{display:none}
#panel.lesson-dialog #panelTitle{font-size:25px;line-height:1.15;margin:4px 40px 12px 0}
#panel.lesson-dialog #panelKicker{font-size:9px;line-height:1.3}
#panel.lesson-dialog #panelBody{display:flex;flex-direction:column;flex:1;min-height:0;gap:0}
.lesson-layout{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:16px}
.lesson-source{min-width:0;min-height:0;border:1px solid #d5decf;border-radius:14px;background:#fffdf5;display:flex;flex-direction:column;gap:8px;padding:12px;overflow:hidden}
.lesson-figure{flex:1;min-height:0;min-width:0;margin:0;display:flex;flex-direction:column;gap:6px}
.lesson-figure img{display:block;flex:1;min-height:0;min-width:0;width:100%;height:100%;object-fit:contain;border-radius:5px}
.lesson-figure figcaption,.lesson-caption{flex:none;font-size:11px;line-height:1.3;color:#667b6c;text-align:center;margin:0}
.lesson-task{display:flex;flex-direction:column;min-height:0;min-width:0;padding:10px 2px;gap:7px}
.lesson-step{font-size:11px;color:#8d7443;font-weight:700;letter-spacing:1px;margin:0;line-height:1.2}
.lesson-dots{display:flex;gap:5px;height:4px;flex:none;margin-bottom:3px}.lesson-dots i{flex:1;background:#dce3d4;border-radius:5px}.lesson-dots i.done{background:#73966b}.lesson-dots i.current{background:#c59b47}
.lesson-task h3{font:600 22px/1.25 Georgia,serif;color:#244e43;margin:3px 0;flex:none}
.lesson-instruction{font-size:12px;line-height:1.3;color:#68796a;margin:0;flex:none}
.lesson-answers{display:flex;flex-direction:column;gap:7px;flex:1;min-height:0;justify-content:center}
.lesson-option{display:block;flex:0 1 auto;text-align:left;border:1px solid #becdb3;border-radius:10px;background:#fffdf5;padding:12px 14px;min-height:44px;font-size:14px;line-height:1.3;color:#354e40}
.lesson-option:before{content:'○';display:inline-block;color:#a3b094;width:23px;font-size:17px;vertical-align:middle}
.lesson-option.selected{border:2px solid #8f773f;background:#f9ebbf;padding:11px 13px}.lesson-option.selected:before{content:'●';color:#8b6c2e}.lesson-option.correct{background:#deedd8;border-color:#527d56}.lesson-option:disabled{opacity:1}
.lesson-answers.many-options{display:grid;grid-template-columns:1fr 1fr;align-content:center}.lesson-answers.many-options button{font-size:13px}
.lesson-answers.month-answers{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));align-content:center;gap:6px}.month-answers .lesson-option{text-align:center;padding:9px 2px;font-size:12px}.month-answers .lesson-option:before{display:none}.month-answers .selected{padding:8px 1px}
.lesson-answers label{font-size:13px;margin:0;display:flex;flex-direction:column;gap:8px;color:#526951}.lesson-answers input{width:100%;font:600 27px system-ui;min-height:60px;background:#fffdf5;border:2px solid #a7b99a;border-radius:10px;padding:12px;color:#254b3f}
.lesson-footer{flex:none;display:flex;flex-direction:column;gap:8px;border-top:1px solid #d7dfce;padding-top:8px}
.lesson-feedback{min-height:46px;margin:0;font-size:13px;line-height:1.4;color:#6b7868}.lesson-feedback.hint{color:#785e30}.lesson-feedback.retry{color:#985935}.lesson-feedback.success{color:#386444;font-weight:600}
.lesson-actions{display:flex;gap:8px;align-items:stretch}.lesson-actions button{min-height:46px;padding:10px 18px}.lesson-actions>.primary{width:auto;flex:1}
.lesson-practice{flex:none;display:flex;gap:8px;align-items:center;border-top:1px solid #dce2d3;padding-top:6px}.lesson-practice label{display:flex;flex:1;align-items:center;gap:8px;font-size:11px;margin:0}.lesson-practice select{min-height:36px;min-width:95px;border:1px solid #b9c8ab;border-radius:7px;background:#fffcf3;padding:5px;font:12px system-ui;color:#3b5947}.lesson-practice button{padding:8px;min-height:36px;font-size:11px}
.lesson-map-tabs{flex:none;display:flex;gap:5px}.lesson-map-tabs button{flex:1;min-height:40px;padding:8px;font-size:12px}.lesson-map-tabs button[aria-pressed=true],.workshop-tabs button[aria-pressed=true]{background:#385f4f;color:white}
.lesson-map-images{display:flex;flex:1;min-height:0}.lesson-map-images.compare{display:grid;grid-template-columns:1fr 1fr;gap:6px}.lesson-map-images .lesson-figure{min-width:0}
.lesson-role-card{flex:1;display:flex;min-height:0;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;background:radial-gradient(ellipse at 50% 30%,#e8efd9,#fcf6e7 75%);border-radius:10px;padding:24px}
.lesson-eyebrow{font-size:10px;letter-spacing:2px;color:#8b7447;margin:0}.lesson-symbol{font-size:90px;line-height:1;color:#7a9c70}.lesson-role{font:25px Georgia,serif;color:#2e5748;margin:0}.lesson-context{font-size:15px;line-height:1.5;color:#62755c;margin:0;max-width:300px}
.water-budget{flex:none;margin:8px 0 0;font-weight:700;color:#317a89;text-align:center;font-size:16px}.water-reservoir{display:grid;grid-template-columns:repeat(12,1fr);gap:3px;height:28px;flex:none}.water-reservoir i{background:#e1e8df;border-radius:4px}.water-reservoir i.full{background:#63b8c8}.lesson-waterrow{background:#eef1e5;padding:9px 12px;border-radius:11px}.water-label{margin:0 0 5px;font-size:13px;line-height:1.3;font-weight:600}.water-controls{display:flex;align-items:center;justify-content:space-between;gap:8px}.water-controls button{min-height:44px;min-width:44px;font-size:19px;padding:5px}.water-controls b{font-size:18px}.water-meter{height:5px;background:#d1ddcf;border-radius:3px;margin-top:6px;overflow:hidden}.water-meter div{height:100%;background:#58a9b9;transition:width .15s ease}
.workshop-tabs{display:flex;gap:8px}.workshop-tabs button{flex:1;min-height:44px}.sort-practice-controls{display:flex;gap:8px;flex:none}.sort-practice-controls button{min-height:36px;padding:7px 12px;font-size:11px}
#panel.mission-dialog section:before{display:none}#panel.mission-dialog #panelBody{overflow:auto}#panel.mission-dialog #panelBody>p{margin:8px 0;line-height:1.5}#panel.mission-dialog #panelBody>button{min-height:44px;margin:5px 0}
@media(max-height:700px) and (min-width:651px){.lesson-task{gap:5px;padding:2px}.lesson-task h3{font-size:19px}.lesson-option{font-size:13px;padding:9px 10px}.lesson-option.selected{padding:8px 9px}.lesson-feedback{font-size:12px;min-height:42px}.lesson-answers{gap:6px}.lesson-source{padding:8px}.lesson-figure figcaption{font-size:10px}.lesson-layout{gap:12px}.lesson-role-card{padding:15px;gap:9px}.lesson-symbol{font-size:65px}.lesson-context{font-size:13px}.lesson-practice{padding-top:4px}.lesson-waterrow{padding:6px 10px}}
@media(max-width:850px) and (min-width:651px){.lesson-layout{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:10px}.lesson-task h3{font-size:19px}.lesson-option{font-size:13px;padding:10px}.lesson-option.selected{padding:9px}.lesson-answers.month-answers{grid-template-columns:repeat(3,minmax(0,1fr))}.lesson-map-images.compare{grid-template-columns:1fr}.lesson-map-tabs button{font-size:11px;padding:6px}}
@media(max-width:650px){#panel.lesson-dialog section{padding:10px 12px}#panel.lesson-dialog #panelTitle{font-size:20px;margin-bottom:7px}.lesson-layout{grid-template-columns:1fr;grid-template-rows:minmax(150px,.85fr) minmax(0,1.6fr);gap:8px}.lesson-source{padding:5px}.lesson-task{padding:0;gap:4px}.lesson-task h3{font-size:18px}.lesson-step{font-size:10px}.lesson-option{font-size:12px;padding:7px 9px}.lesson-option.selected{padding:6px 8px}.lesson-feedback{min-height:34px;font-size:11px}.lesson-footer{padding-top:5px;gap:4px}.lesson-actions button{min-height:44px}.lesson-answers{gap:5px}.lesson-role-card{padding:10px;gap:5px}.lesson-symbol{font-size:35px}.lesson-context{font-size:12px}.lesson-role{font-size:20px}.lesson-eyebrow{font-size:9px}.lesson-figure figcaption{font-size:9px}.lesson-answers.month-answers{grid-template-columns:repeat(4,minmax(0,1fr))}.lesson-map-images.compare{grid-template-columns:1fr 1fr}.lesson-waterrow{padding:5px}.water-label{font-size:11px}.water-controls button{min-height:38px}.lesson-practice{padding-top:3px}.lesson-practice label{font-size:10px}.lesson-practice select,.lesson-practice button{min-height:32px}.water-reservoir{height:14px}.water-budget{font-size:12px;margin:0}}

.lesson-map-images.compare{display:grid;grid-template-columns:1fr;grid-template-rows:1fr 1fr;gap:6px}@media(max-width:650px){.lesson-map-images.compare{grid-template-columns:1fr 1fr;grid-template-rows:1fr}}
.lesson-material{border:1px solid #cbd8bf;border-radius:10px;background:#eff3e5;padding:16px}.material-name{font-weight:600;font-size:16px;margin:0 0 6px;color:#3c614e}.material-count{font-size:13px;margin:0;color:#708062}
@media(max-height:700px){.lesson-waterrow{padding:4px 8px}.lesson-waterrow .water-label{margin-bottom:2px}.lesson-waterrow .water-meter{margin-top:3px}}