.checkpoint-card{padding:22px 24px;border:1px solid #d7e9dc;border-radius:14px;background:#f7fcf8;box-shadow:0 12px 28px rgba(39,77,52,.06)}.checkpoint-card.is-passed{border-color:#9ed0aa;background:#f1fbf3}.checkpoint-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#6b9278;font-size:10px;font-weight:800}.checkpoint-meta b{color:#9aab9f;font:10px "DM Mono",monospace}.checkpoint-card.is-passed .checkpoint-meta b{color:#4d9765}.checkpoint-prompt{margin:15px 0;color:#385746;font-size:15px;font-weight:700;line-height:1.75}.checkpoint-options{display:grid;gap:8px}.checkpoint-options label{display:flex;align-items:center;gap:9px;padding:11px 12px;border:1px solid #dce9df;border-radius:8px;background:#fff;color:#557061;font-size:11px;cursor:pointer}.checkpoint-options label:has(input:checked){border-color:#79b98c;background:#edf8f0;color:#34704b}.checkpoint-options input{accent-color:#4e9b69}.checkpoint-answer,.checkpoint-code{display:block;width:100%;box-sizing:border-box;border:1px solid #d8e6dc;border-radius:8px;background:#fff;color:#3d5948;font:12px/1.7 "Manrope",sans-serif;outline:0;resize:vertical}.checkpoint-answer{padding:11px 12px}.checkpoint-code{padding:13px;color:#dce9e0;background:#1d2b26;font:12px/1.8 "DM Mono",monospace;tab-size:4}.checkpoint-answer:focus,.checkpoint-code:focus{border-color:#79b98c;box-shadow:0 0 0 3px #e8f6eb}.checkpoint-code-hint{margin:8px 0;color:#86998c;font-size:10px}.checkpoint-example{margin:10px 0;color:#62816d;font-size:10px}.checkpoint-example summary{cursor:pointer;font-weight:700}.checkpoint-example pre{max-height:180px;margin:8px 0 0;padding:10px;overflow:auto;border-radius:7px;background:#1d2b26;color:#dce9e0;font:10px/1.7 "DM Mono",monospace;white-space:pre-wrap}.checkpoint-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px}.checkpoint-actions .slide-action{min-height:34px;padding:0 12px}.checkpoint-feedback{display:grid;gap:4px;min-height:20px;margin-top:12px;color:#71867a;font-size:11px;line-height:1.7}.checkpoint-feedback strong{color:#4b8d60}.checkpoint-card:not(.is-passed) .checkpoint-feedback strong{color:#b87452}.lesson-slide-content:has(.checkpoint-card){box-sizing:border-box;max-width:none}@media(max-width:760px){.checkpoint-card{padding:18px 16px}.checkpoint-prompt{font-size:13px}.checkpoint-options label{font-size:10px}.checkpoint-code{font-size:10px}.checkpoint-actions{flex-direction:column}.checkpoint-actions .slide-action{width:100%}}
.checkpoint-review-summary{color:#5e9270!important}.review-summary{align-items:center;gap:12px;flex-wrap:wrap}
.checkpoint-matching{margin-top:13px}.checkpoint-matching-hint{margin:0 0 10px;color:#71867a;font-size:11px;line-height:1.6}.checkpoint-matching-board{position:relative;display:grid;grid-template-columns:minmax(140px,.8fr) minmax(220px,1.4fr);gap:84px;align-items:start}.checkpoint-matching-column{position:relative;z-index:1;display:grid;gap:11px}.checkpoint-match-card{display:flex;align-items:center;min-height:54px;width:100%;padding:10px 12px;border:1px solid #cfe2d4;border-radius:10px;background:#fff;color:#395847;text-align:left;font:700 11px/1.55 "Manrope",sans-serif;cursor:pointer;transition:border-color .18s,background .18s,transform .18s}.checkpoint-match-card:hover,.checkpoint-match-card.is-selected{border-color:#5aa775;background:#ebf7ee;transform:translateY(-1px)}.checkpoint-match-card.is-selected{box-shadow:0 0 0 3px rgba(101,180,126,.16)}.checkpoint-match-card.is-linked{border-color:#66ad7d;background:#f2fbf4;color:#2d7046}.checkpoint-match-target.is-used{opacity:.72}.checkpoint-matching-lines{position:absolute;z-index:0;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}.checkpoint-matching-lines path{fill:none;stroke:#5ba978;stroke-width:2.5;stroke-linecap:round}.checkpoint-matching-lines circle{fill:#5ba978}.checkpoint-matching-left .checkpoint-match-card::after,.checkpoint-matching-right .checkpoint-match-card::before{content:"";position:absolute;top:50%;width:8px;height:8px;border:2px solid #9acdad;border-radius:50%;background:#fff;transform:translateY(-50%)}.checkpoint-matching-left .checkpoint-match-card::after{right:-7px}.checkpoint-matching-right .checkpoint-match-card::before{left:-7px}
.checkpoint-match-card{position:relative}
.inline-checkpoint-section{display:grid;gap:16px;margin:30px 0 10px;padding-top:24px;border-top:1px solid #e1eee4}.inline-checkpoint-heading{display:grid;gap:5px}.inline-checkpoint-heading h3{margin:0;color:#315541;font-size:20px}.inline-checkpoint-heading p{margin:0;color:#769181;font-size:12px;line-height:1.7}.inline-checkpoint-list{display:grid;gap:14px}.checkpoint-locked{opacity:.72;background:#f4f8f5;box-shadow:none}.checkpoint-locked .checkpoint-prompt{margin-bottom:0;color:#789083;font-size:12px;font-weight:600}
.slide-ai-panel{display:grid;gap:9px;margin-top:24px;padding:14px 16px;border:1px solid #d8e9dc;border-radius:12px;background:rgba(247,252,248,.92)}.slide-ai-head{display:flex;align-items:center;justify-content:space-between;gap:10px;color:#3e7952;font-size:11px;font-weight:800}.slide-ai-head small{color:#84988b;font-size:9px;font-weight:600}.slide-ai-messages{display:grid;gap:7px;max-height:190px;overflow:auto}.slide-ai-messages .ai-message{margin:0;padding:7px 9px;border-radius:8px;background:#fff;font-size:10px;line-height:1.6}.slide-ai-messages .ai-message.user{background:#eaf6ed}.slide-ai-messages .ai-mini{font-size:9px}.slide-ai-messages .ai-message-content p{margin:0}.slide-ai-empty{margin:0;color:#7a9081;font-size:10px;line-height:1.6}.slide-ai-entry{display:flex;gap:7px}.slide-ai-entry input{min-width:0;flex:1;height:34px;padding:0 10px;border:1px solid #cfe2d4;border-radius:7px;background:#fff;color:#385846;font:11px Manrope,sans-serif;outline:0}.slide-ai-entry input:focus{border-color:#72ad83;box-shadow:0 0 0 3px #e9f6ec}.slide-ai-entry button{height:34px;padding:0 12px;border:0;border-radius:7px;background:#43875a;color:#fff;font-size:10px;font-weight:800;cursor:pointer}.slide-ai-entry button:disabled{opacity:.5;cursor:wait}@media(max-width:760px){.slide-ai-head{align-items:flex-start;flex-direction:column;gap:3px}.slide-ai-entry{flex-direction:column}.slide-ai-entry button{width:100%}.checkpoint-matching-board{grid-template-columns:1fr;gap:15px}.checkpoint-matching-lines,.checkpoint-matching-left .checkpoint-match-card::after,.checkpoint-matching-right .checkpoint-match-card::before{display:none}}
.slide-ai-panel-compact{display:block;margin-top:14px;padding:0;border:0;background:transparent}.slide-ai-backdrop{position:fixed;z-index:89;inset:0;width:100%;height:100%;background:rgba(24,42,33,.28);cursor:default}.slide-ai-popover{position:fixed;z-index:90;top:50%;left:50%;display:grid;gap:9px;width:min(480px,calc(100vw - 36px));max-height:calc(100vh - 36px);padding:17px;border:1px solid #cfe2d4;border-radius:14px;background:#f7fcf8;box-shadow:0 24px 70px rgba(24,49,34,.28);transform:translate(-50%,-50%)}.slide-ai-popover .slide-ai-head button{padding:2px 6px;color:#6d927a}.slide-ai-context{display:block;color:#84988b;line-height:1.55}.slide-ai-popover .slide-ai-messages{max-height:min(360px,calc(100vh - 310px))}.lesson-focus-mode .lesson-slide-deck.lesson-handout-fit .lesson-slide-stage,.lesson-slide-deck.lesson-handout-fit:fullscreen .lesson-slide-stage{overflow:hidden}.lesson-focus-mode .lesson-slide-deck.lesson-handout-fit .lesson-slide-content,.lesson-slide-deck.lesson-handout-fit:fullscreen .lesson-slide-content{max-height:100%}
.lesson-focus-mode .lesson-slide-deck.lesson-handout-fit,.lesson-slide-deck.lesson-handout-fit:fullscreen{padding:10px 24px}.lesson-focus-mode .lesson-handout-fit .lesson-slide-topbar,.lesson-handout-fit:fullscreen .lesson-slide-topbar{margin-bottom:8px}.lesson-focus-mode .lesson-handout-fit .lesson-slide-content,.lesson-handout-fit:fullscreen .lesson-slide-content{padding-top:14px;padding-bottom:14px}.lesson-focus-mode .lesson-handout-fit .lesson-slide-content h1,.lesson-handout-fit:fullscreen .lesson-slide-content h1{margin-top:8px;margin-bottom:12px}.lesson-focus-mode .lesson-handout-fit .lesson-slide-footer,.lesson-handout-fit:fullscreen .lesson-slide-footer{margin-top:8px}.lesson-focus-mode .lesson-handout-fit .lesson-slide-hint,.lesson-handout-fit:fullscreen .lesson-slide-hint{margin-top:4px}