.tutorial-exercises{margin:36px 0 0;padding:28px 0 32px;border-top:1px solid var(--line);font-size:18px;line-height:1.6;min-width:0}
.tutorial-exercises.main-exercise-demo{margin:0;padding:0;border:0}
.tutorial-exercises .te-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}
.tutorial-exercises h3{font-size:24px;line-height:1.35;margin:0;font-weight:600;letter-spacing:-.02em}
.tutorial-exercises .te-heading a{font-size:16px;white-space:nowrap;text-underline-offset:4px}
.tutorial-exercises .te-groups{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.tutorial-exercises button{font:inherit;cursor:pointer;min-height:44px;border:1px solid var(--line);border-radius:7px;color:var(--ink);background:var(--surface);padding:8px 14px;touch-action:manipulation}
.tutorial-exercises button:not(.te-reveal):not([aria-pressed=true]):hover:not(:disabled){background:#e8f0df;border-color:#7e9d70}
.tutorial-exercises button[aria-pressed=true],.tutorial-exercises .te-reveal{background:var(--teal);color:#fff;border-color:var(--teal)}
.tutorial-exercises button.te-reveal:hover:not(:disabled),.tutorial-exercises button.te-reveal:active:not(:disabled){background:#285744;color:#fff;border-color:#285744}
.tutorial-exercises button:disabled{opacity:.4;cursor:default}
.tutorial-exercises button:focus-visible,.tutorial-exercises a:focus-visible{outline:3px solid #926b24;outline-offset:3px}
.tutorial-exercises [tabindex="0"]:focus-visible{outline:3px solid #926b24;outline-offset:-3px}
.tutorial-exercises .te-source{font-size:16px;color:#52674d;margin:0 0 8px}
.tutorial-exercises .te-prompt{margin:0 0 18px;max-width:74ch}
.tutorial-exercises .te-questions{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:24px}
.tutorial-exercises .te-questions button{width:44px;padding:5px;font-variant-numeric:tabular-nums}
.tutorial-exercises .te-work{min-width:0}
.tutorial-exercises pre{font:18px/1.8 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal;margin:0}
.tutorial-exercises code{font:inherit}
.tutorial-exercises .te-code{padding:20px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.tutorial-exercises .te-setup{margin-bottom:10px;color:#52674d}
.tutorial-exercises h4{font-size:18px;font-weight:600;margin:0 0 10px}
.tutorial-exercises .te-actions{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:18px}
.tutorial-exercises .te-navigation{display:flex;align-items:center;gap:12px}
.tutorial-exercises .te-navigation span{font-size:16px;color:#52674d;font-variant-numeric:tabular-nums;min-width:48px;text-align:center}
.tutorial-exercises .te-answer{margin-top:24px;padding:0;background:transparent;color:#284c31}
.tutorial-exercises .te-answer p{margin:10px 0 0;max-width:72ch}
.tutorial-exercises .te-answer-actions{display:flex;gap:10px;flex-wrap:wrap}
.tutorial-exercises .te-result{margin-top:16px;padding:16px 20px;background:#e7efdd;border-radius:8px}
.tutorial-exercises .te-figure{border:1px solid var(--line);border-radius:12px;background:var(--surface);min-width:0;overflow:hidden}
.tutorial-exercises .tf-row{padding:24px 20px 20px;overflow-x:auto;scrollbar-color:#7d9b77 #edf1e6}
.tutorial-exercises .tf-row+.tf-row{border-top:1px solid var(--line)}
.tutorial-exercises .tf-row-label{margin:0 0 12px;font:17px/1.5 var(--mono);color:#48644c}
.tutorial-exercises .tf-array{display:flex;gap:10px;align-items:center;width:max-content;min-width:100%;justify-content:center}
.tutorial-exercises .tf-cell{display:flex;flex-direction:column;align-items:center;gap:8px;font:17px/1.5 var(--mono);flex:none;min-width:76px}
.tutorial-exercises .tf-positive,.tutorial-exercises .tf-negative{display:flex;gap:5px;align-items:center;justify-content:center;position:relative;min-height:26px;color:#49624c}
.tutorial-exercises .tf-negative{color:#6d6947;font-size:15px}
.tutorial-exercises .tf-positive b{position:absolute;bottom:28px;font:600 12px/1.4 inherit;color:#fff;background:#306da3;border-radius:4px;padding:2px 5px}
.tutorial-exercises .tf-stop .tf-positive b{background:#ad4e32}
.tutorial-exercises .tf-value{display:flex;align-items:center;justify-content:center;min-width:76px;min-height:65px;padding:12px 16px;border:1px solid #b8c8aa;border-radius:8px;color:#294536;background:#f4f6ed;white-space:nowrap}
.tutorial-exercises .tf-selected .tf-value{background:var(--teal);border-color:var(--teal);color:#fff}
.tutorial-exercises .tf-compared .tf-value{background:#e1edd6;border-color:#8caa76}
.tutorial-exercises .tf-stop .tf-value{border:2px dashed #ad4e32;background:#f5e8df;color:#8c3f29}
.tutorial-exercises .tf-ellipsis{padding:35px 14px 20px;color:#62745c;font-size:28px}
.tutorial-exercises .tf-ellipsis-active{color:var(--teal);background:#e2edd9;border-radius:8px}
.tutorial-exercises .tf-error{padding:16px 20px;border-top:1px solid #d6c6b9;color:#963d27;background:#faeee4;font:17px/1.6 var(--mono);overflow-wrap:anywhere}
.tutorial-exercises .tf-compare-sign{display:flex;gap:18px;align-items:center;justify-content:center;padding:12px 20px;background:#ecf2e4;font:20px/1.5 var(--mono)}
.tutorial-exercises .tf-compare-sign strong{font-weight:600;color:#2c653d}
.tutorial-exercises .tf-compare-sign span{font:15px/1.5 var(--sans,inherit);color:#5b694d}
.tutorial-exercises .tf-error-text{color:#963d27!important}
.tutorial-exercises .tf-setup,.tutorial-exercises .tf-range-summary{padding:14px 20px;font:16px/1.6 var(--mono);color:#49624c;overflow-wrap:anywhere}
.tutorial-exercises .tf-range-summary{border-top:1px solid var(--line)}
.tutorial-exercises .tf-graph-scroll{overflow:auto;max-height:800px;scrollbar-color:#7d9b77 #edf1e6}
.tutorial-exercises .tf-copy-graph{display:block;margin:auto;max-width:none}
.tutorial-exercises .tf-copy-graph path{stroke:#5b7e66;stroke-width:1.5;fill:none}
.tutorial-exercises .tf-copy-graph text{font:18px var(--mono);fill:#294536}
.tutorial-exercises .tf-copy-graph .tf-edge-label{font-size:15px;paint-order:stroke;stroke:var(--surface);stroke-width:6px;stroke-linejoin:round}
.tutorial-exercises .tf-graph-node rect{fill:#f4f6ed;stroke:#8fa681;stroke-width:1.5}
.tutorial-exercises .tf-graph-binding rect{fill:#294d3e;stroke:#294d3e}
.tutorial-exercises .tf-graph-binding text{fill:#fff}
.tutorial-exercises .tf-graph-shared rect{fill:#dfeeda;stroke:#46714d;stroke-width:2}
.tutorial-exercises .tf-copy-graph .tf-graph-id{font-size:15px;fill:#456344}
.tutorial-exercises .tf-range-controls{display:flex;gap:8px;padding:0 20px 16px}
@media(max-width:680px){.tutorial-exercises{margin-top:28px;padding-top:24px}.tutorial-exercises .te-heading{align-items:flex-start;gap:12px}.tutorial-exercises h3{font-size:22px}.tutorial-exercises .te-heading a{font-size:15px}.tutorial-exercises .te-source{font-size:15px}.tutorial-exercises .te-groups button{text-align:left}.tutorial-exercises .te-code,.tutorial-exercises .te-result{padding:16px}.tutorial-exercises pre{font-size:17px}.tutorial-exercises .te-actions{gap:16px}.tutorial-exercises .te-navigation{gap:7px}.tutorial-exercises .te-navigation button{padding:8px 12px}}