.terminal-demo{margin:24px 0 30px!important;padding:0!important;border:1px solid #c8d9ee;border-radius:16px;background:#f3f7fd;overflow:hidden}.terminal-demo>header{padding:22px 22px 10px;background:#fff}.terminal-eyebrow{font-size:10px;letter-spacing:.08em;font-weight:750;color:#416b9c}.lecture .terminal-demo h4{margin:8px 0 10px;font-size:21px;line-height:1.5}.lecture .terminal-demo>header p{font-size:15px;line-height:1.8;margin:0 0 8px;color:#49617f}.terminal-options{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 22px 18px;background:#fff}.terminal-options label{display:flex;gap:10px;align-items:center;font-size:12px;color:#536d8e}.terminal-options select{width:auto;padding:7px 10px;font-size:12px}.terminal-demo button{font-family:inherit;font-size:12px;font-weight:650;line-height:1.5;border:1px solid #bdd0e8;border-radius:7px;padding:8px 10px;background:#fff;color:#2c517e;cursor:pointer}.terminal-demo button:disabled{opacity:.45;cursor:default}.terminal-demo button:focus-visible,.terminal-demo select:focus-visible,.terminal-demo textarea:focus-visible{outline:3px solid #d69c30;outline-offset:3px}.terminal-pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;padding:18px 16px 0}.terminal-demo .terminal-window{min-width:0;margin:0;padding:0;border:1px solid #b9cde7;border-radius:12px;background:#fff;overflow:hidden}.terminal-window-head{display:flex;flex-wrap:wrap;align-items:center;gap:7px;padding:12px;background:#1b2c44;color:#eaf1fc}.terminal-window-head strong{font-size:12px}.terminal-window-head>span:last-child{font:10px/1.5 ui-monospace,monospace;color:#adc0de;flex-basis:100%;padding-left:36px}.terminal-lights{font-size:8px;letter-spacing:2px;color:#91b1df}.terminal-actions{display:flex;flex-wrap:wrap;gap:6px;padding:12px 12px 4px}.terminal-demo [data-term-start],.terminal-demo [data-term-send]{background:#245cea;border-color:#245cea;color:#fff}.terminal-demo [data-term-stop]{font-size:11px}.lecture .terminal-state{font-size:11px;color:#657792;padding:0 12px;margin:8px 0 12px}.terminal-state.is-listening{color:#08795f;font-weight:700}.terminal-demo pre.terminal-output{background:#122036;color:#e1edff;max-width:100%;height:235px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.85 ui-monospace,SFMono-Regular,Consolas,monospace;padding:14px 12px;margin:12px 10px;border-radius:8px;tab-size:4}.terminal-output samp{font:inherit;white-space:inherit}.terminal-output:empty:after{content:"Ch\1b0 a c\f3  l\1ec7nh n\e0o \111\1b0\1ee3 c ch\1ea1y";color:#8097b6}.terminal-input-label{display:block;margin:12px 12px 7px;font-size:12px;font-weight:650;color:#385a81}.terminal-demo textarea{display:block;width:calc(100% - 24px);margin:0 12px;padding:9px 10px;border:1px solid #b8cce7;border-radius:8px;min-height:66px;resize:vertical;font:12px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;color:#193452;background:#f8faff;box-sizing:border-box}.terminal-error-choice{display:flex;align-items:center;gap:8px;padding:8px 12px 0;font-size:11px;color:#536d8e}.terminal-error-choice select{width:auto;max-width:100%;font-size:11px;padding:6px}.lecture .terminal-edit-hint{font-size:11px;line-height:1.7;color:#677d98;padding:0 12px;margin:8px 0 14px}.terminal-file{margin:10px;border:1px solid #c4dfd3;background:#f0faf4;border-radius:8px;padding:10px}.terminal-file strong{font:650 11px/1.6 ui-monospace,monospace;color:#24664f;overflow-wrap:anywhere}.terminal-file pre{white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.8 ui-monospace,monospace;color:#1b5b46;padding:0;margin:8px 0 0;max-width:100%}.terminal-wire{display:flex;align-items:center;gap:10px;margin:20px 20px 12px;min-height:58px}.terminal-wire>span{flex-shrink:0;font-size:11px;font-weight:750;color:#45668e}.terminal-wire-track{position:relative;border-top:2px dashed #9fb8d7;flex:1;min-width:0;padding-top:12px;text-align:center}.terminal-wire-label{font-size:11px;color:#5a7293;line-height:1.6}.terminal-wire-packet{position:absolute;top:-15px;max-width:96%;width:max-content;padding:4px 9px;border-radius:7px;background:#fff0cb;color:#805411;border:1px solid #e7c46d;font-size:11px;font-weight:750;white-space:nowrap;z-index:1}.terminal-wire-packet[hidden]{display:none}.terminal-wire-packet.to-a{animation:terminal-to-a 1.2s ease-in-out forwards}.terminal-wire-packet.to-b{animation:terminal-to-b 1.2s ease-in-out forwards}@keyframes terminal-to-a{0%{left:100%;transform:translate(-100%)}to{left:0;transform:translate(0)}}@keyframes terminal-to-b{0%{left:0;transform:translate(0)}to{left:100%;transform:translate(-100%)}}.lecture .terminal-narration{font-size:15px;line-height:1.8;background:#e6f4ec;border-left:4px solid #19876a;border-radius:0 8px 8px 0;padding:14px 16px;margin:10px 20px;color:#245c4a;min-height:76px}.lecture .terminal-lesson{font-size:13px;line-height:1.8;padding:0 20px;color:#536f8f;margin:14px 0}.terminal-real{background:#fff;border-top:1px solid #d2e0ef;padding:15px 20px}.terminal-real summary{font-weight:700;color:#245ac0;font-size:14px;cursor:pointer}.lecture .terminal-real p{font-size:14px;line-height:1.8}.terminal-downloads{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.terminal-downloads a{background:#eff5ff;border:1px solid #c2d6f3;padding:8px 11px;border-radius:7px;font:650 12px/1.6 ui-monospace,monospace;text-decoration:none;color:#245ac0}.terminal-real-command{margin:14px 0}.terminal-real-command>strong{font-size:12px;color:#416187}.terminal-real-command>div{display:flex;align-items:center;gap:8px;margin-top:6px}.terminal-real-command code{display:block;flex:1;min-width:0;overflow-wrap:anywhere;font-size:12px;line-height:1.8;padding:10px;background:#ecf3ff}.terminal-real-command button{flex-shrink:0}.terminal-edit-code{max-width:100%;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.8 ui-monospace,monospace;background:#edf4ff;padding:12px;border-radius:8px}.terminal-edit-code code{font:inherit;padding:0;background:none}@media (max-width:1100px) and (min-width:1001px){.terminal-pair{grid-template-columns:1fr}}@media (max-width:600px){.terminal-demo>header{padding:17px 15px 8px}.lecture .terminal-demo h4{font-size:19px}.terminal-options{padding:8px 15px 14px;flex-wrap:wrap}.terminal-options label{font-size:11px}.terminal-pair{grid-template-columns:minmax(0,1fr);padding:12px;gap:14px}.terminal-demo pre.terminal-output{height:170px;font-size:12px}.terminal-demo .terminal-window-head strong{font-size:13px}.terminal-wire{margin:16px 14px 10px;gap:7px}.terminal-wire>span{font-size:10px}.terminal-wire-label{font-size:10px}.lecture .terminal-narration{margin:10px 14px;padding:12px;font-size:14px}.lecture .terminal-lesson{padding:0 15px;font-size:12px}.terminal-real{padding:14px}.terminal-real-command>div{flex-wrap:wrap}.terminal-real-command code{flex-basis:100%}}@media (prefers-reduced-motion:reduce){.terminal-wire-packet{animation:none!important;left:50%!important;transform:translate(-50%)!important}}@media print{.terminal-demo{break-inside:avoid}.terminal-options,.terminal-actions,.terminal-error-choice,.terminal-wire-packet,.terminal-demo textarea,.terminal-downloads{display:none!important}.terminal-demo pre.terminal-output{height:auto;min-height:40px;background:#fff;color:#000;border:1px solid #ccc}.terminal-pair{grid-template-columns:1fr 1fr}.terminal-real-command code{color:#000}}