#homeNaviCoachBtn{cursor:pointer;gap:8px;color:#1d4ed8;border:1px solid #bfd3fb;background:#f8fbff;font-weight:800;font-family:inherit;font-size:13px;white-space:nowrap}
#homeNaviCoachBtn[aria-expanded="true"]{background:#2563eb;color:#fff;border-color:#2563eb}
#homeNaviCoachBtn svg{width:18px;height:18px;flex:none}
body.hnc-open #homeNaviCoachBtn{position:fixed;z-index:2147482300;right:16px;top:16px;height:36px;margin:0;box-shadow:none}
body.hnc-open .hnc-head{padding-right:148px}
body.hnc-open #hncClose{display:none}
body.hnc-open #bugOverlay,body.hnc-open #bugImageViewer{z-index:2147483000!important}
.hnc-panel,.hnc-panel *{box-sizing:border-box}
.hnc-panel{--hnc-blue:#2563eb;--hnc-deep:#1e40af;--hnc-ink:#172033;--hnc-muted:#64748b;position:fixed;z-index:2147482100;right:0;top:0;width:min(430px,100vw);height:100dvh;background:#f5f8fc;border-left:1px solid #dce4ef;box-shadow:-18px 0 50px rgba(15,23,42,.16);transform:translateX(105%);transition:transform .24s ease;display:flex;flex-direction:column;font-family:"Pretendard Variable","Pretendard","Noto Sans KR","Apple SD Gothic Neo",system-ui,sans-serif;color:var(--hnc-ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.hnc-panel.on{transform:translateX(0)}
.hnc-head{height:68px;padding:0 16px 0 18px;background:#fff;border-bottom:1px solid #e2e8f0;display:flex;align-items:center;gap:11px;flex:none}
.hnc-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,#eff6ff,#dbeafe);display:grid;place-items:center;color:var(--hnc-blue)}
.hnc-title{min-width:0;flex:1}.hnc-title b{display:block;font-size:16px;line-height:1.25;font-weight:850;letter-spacing:-.3px}.hnc-title span{display:block;margin-top:3px;color:#64748b;font-size:11.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hnc-icon-btn{width:36px;height:36px;border:1px solid #dce4ef;border-radius:10px;background:#fff;color:#475569;display:grid;place-items:center;cursor:pointer}.hnc-icon-btn:hover{background:#f8fafc}.hnc-icon-btn svg{width:18px;height:18px}
.hnc-bug-btn{position:fixed;z-index:2147482300;right:145px;top:16px;height:36px;padding:0 11px;border:1px solid #f0d2d2;border-radius:10px;background:#fff;color:#e0382f;display:none;align-items:center;gap:6px;font:800 12px inherit;white-space:nowrap;cursor:pointer;box-shadow:none}body.hnc-open .hnc-bug-btn{display:inline-flex}.hnc-bug-btn:hover{background:#fff5f5;border-color:#ec9f9f}.hnc-bug-btn svg{width:17px;height:17px;flex:none}
.hnc-context{padding:9px 14px;background:#fff;border-bottom:1px solid #e5eaf1;display:flex;align-items:center;gap:8px;flex:none}
.hnc-subject{height:32px;border:1px solid #cbd8eb;border-radius:8px;background:#fff;color:#334155;font:700 12px inherit;padding:0 28px 0 10px;max-width:145px}
.hnc-context-note{min-width:0;color:#718096;font-size:11px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hnc-log{flex:1;min-height:0;overflow:auto;padding:16px 14px 24px;scroll-behavior:smooth}
.hnc-welcome{background:#fff;border:1px solid #dde6f1;border-radius:14px;padding:14px;box-shadow:0 2px 8px rgba(15,23,42,.04);font-size:13px;line-height:1.6;color:#39465c}.hnc-welcome b{display:block;color:#1f3c78;margin-bottom:4px;font-size:14px}.hnc-welcome ul{padding-left:18px;margin:8px 0 0;color:#65748a;font-size:12px}
.hnc-msg{display:flex;margin-top:13px}.hnc-msg.user{justify-content:flex-end}.hnc-bubble{max-width:88%;padding:10px 12px;border-radius:14px;font-size:13px;line-height:1.6;white-space:pre-wrap;word-break:break-word}.hnc-msg.user .hnc-bubble{background:var(--hnc-blue);color:#fff;border-bottom-right-radius:4px}.hnc-msg.ai .hnc-bubble{background:#fff;color:#26334a;border:1px solid #dde6f1;border-bottom-left-radius:4px;box-shadow:0 1px 3px rgba(15,23,42,.03)}
.hnc-typing{display:inline-flex;gap:4px}.hnc-typing i{width:5px;height:5px;border-radius:50%;background:#6b8cca;animation:hncTyping .9s infinite alternate}.hnc-typing i:nth-child(2){animation-delay:.2s}.hnc-typing i:nth-child(3){animation-delay:.4s}@keyframes hncTyping{to{opacity:.28;transform:translateY(-3px)}}
.hnc-visual{margin-top:10px;border-top:1px solid #e6ecf3;padding-top:9px}.hnc-visual h4{font-size:13px;margin:0 0 6px;color:#1e3a68}.hnc-visual p{margin:4px 0}.hnc-visual ol,.hnc-visual ul{margin:5px 0;padding-left:20px}.hnc-answer{padding:8px 10px;border-radius:9px;background:#eff6ff;color:#1d4ed8;font-weight:800;margin-top:7px}
.hnc-media-card{margin-top:10px;border:1px solid #dce5f0;border-radius:12px;overflow:hidden;background:#fff}.hnc-media-card img{display:block;width:100%;max-height:280px;object-fit:contain;background:#f1f5f9;cursor:zoom-in}.hnc-media-meta{padding:8px 10px;font-size:11px;color:#64748b}.hnc-image-feedback{width:100%;border:0;border-top:1px solid #e6ecf3;background:#fff;color:#2563eb;font:800 11.5px inherit;padding:8px;cursor:pointer}
.hnc-video-card{display:grid;grid-template-columns:106px 1fr;gap:10px;margin-top:10px;padding:9px;background:#fff;border:1px solid #dce5f0;border-radius:12px;cursor:pointer;text-align:left;width:100%;font:inherit;color:inherit}.hnc-video-card:hover{border-color:#9dbcf5;background:#fbfdff}.hnc-video-card img{width:106px;height:64px;border-radius:8px;object-fit:cover;background:#e2e8f0}.hnc-video-card b{font-size:12px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.hnc-video-card span{font-size:10.5px;color:#64748b;display:block;margin-top:5px}
.hnc-video-expand{width:100%;margin-top:9px;padding:8px 10px;border:1px solid #cbd9f8;border-radius:9px;background:#f4f7ff;color:#2858c5;font:inherit;font-size:11.5px;font-weight:800;cursor:pointer}.hnc-video-expand:hover:not(:disabled){background:#eaf0ff;border-color:#92aff3}.hnc-video-expand:disabled{cursor:default;color:#71809f;background:#f6f8fc;border-color:#e1e6ef}.hnc-video-expand-label{margin-top:9px;padding-top:8px;border-top:1px dashed #d9e1ee;color:#5e6b84;font-size:11px;font-weight:800}
.hnc-tools{display:flex;gap:7px;padding:10px 12px 7px;background:#fff;border-top:1px solid #e2e8f0;overflow-x:auto;flex:none}.hnc-tool{height:33px;padding:0 10px;border:1px solid #d7e2f0;border-radius:9px;background:#fff;color:#3e526f;font:750 11.5px inherit;display:flex;align-items:center;gap:6px;white-space:nowrap;cursor:pointer}.hnc-tool:hover,.hnc-tool.on{color:var(--hnc-blue);border-color:#9dbcf5;background:#eff6ff}.hnc-tool svg{width:15px;height:15px}
.hnc-math-tools{display:flex;align-items:center;gap:5px;padding:5px 12px 7px;background:#fff;overflow-x:auto;flex:none}.hnc-math-tools[hidden]{display:none}.hnc-math-tools>span{flex:none;color:#64748b;font-size:10.5px;font-weight:850}.hnc-math-tools button,.hnc-retry{border:1px solid #cad8ec;border-radius:8px;background:#f8fbff;color:#244b8f;font:800 12px/1 inherit;cursor:pointer}.hnc-math-tools button{min-width:30px;height:29px;padding:0 7px}.hnc-math-tools button:hover,.hnc-retry:hover{border-color:#78a1ed;background:#edf4ff}.hnc-retry{display:block;margin-top:9px;padding:8px 10px}
.hnc-compose{padding:7px 12px calc(11px + env(safe-area-inset-bottom));background:#fff;display:flex;align-items:flex-end;gap:8px;flex:none}.hnc-input-wrap{flex:1;border:1px solid #ccd7e5;border-radius:12px;background:#fff;padding:8px 10px}.hnc-input{display:block;width:100%;border:0;outline:0;resize:none;min-height:23px;max-height:90px;font:500 13px/1.55 inherit;color:#1e293b;background:transparent}.hnc-input::placeholder{color:#9aa7b8}.hnc-status{font-size:10.5px;color:#789;line-height:1.4;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hnc-send{width:42px;height:42px;border:0;border-radius:12px;background:var(--hnc-blue);color:#fff;display:grid;place-items:center;cursor:pointer;box-shadow:0 4px 10px rgba(37,99,235,.22)}.hnc-send:disabled{background:#aab7ca;cursor:default;box-shadow:none}.hnc-send svg{width:19px;height:19px}
.hnc-photo-strip{display:none;padding:8px 12px;background:#fff;border-top:1px solid #e6ebf2;align-items:center;gap:8px}.hnc-photo-strip.on{display:flex}.hnc-photo-strip img{width:56px;height:44px;object-fit:cover;border:1px solid #cbd5e1;border-radius:7px}.hnc-photo-strip div{min-width:0;flex:1;font-size:11px;color:#526176}.hnc-photo-strip button{border:0;background:none;color:#e11d48;font:800 11px inherit;cursor:pointer}
.hnc-modal{position:fixed;z-index:2147482500;inset:0;background:rgba(15,23,42,.68);display:none;align-items:center;justify-content:center;padding:18px}.hnc-modal.on{display:flex}.hnc-modal-box{width:min(950px,100%);max-height:calc(100dvh - 36px);background:#fff;border-radius:16px;box-shadow:0 24px 80px rgba(0,0,0,.35);overflow:hidden;display:flex;flex-direction:column}.hnc-modal-head{height:58px;padding:0 16px 0 20px;border-bottom:1px solid #e2e8f0;display:flex;align-items:center;gap:10px;flex:none}.hnc-modal-head b{font-size:16px;flex:1}.hnc-modal-head span{font-size:11px;color:#64748b}.hnc-modal-body{min-height:0;overflow:auto;padding:14px;background:#f4f7fb}.hnc-modal-actions{padding:10px 14px;border-top:1px solid #e2e8f0;background:#fff;display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}.hnc-btn{height:36px;border:1px solid #cdd8e6;border-radius:9px;background:#fff;color:#334155;padding:0 13px;font:750 12px inherit;cursor:pointer}.hnc-btn.primary{background:#2563eb;color:#fff;border-color:#2563eb}.hnc-btn.danger{color:#dc2626}.hnc-file-input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.hnc-camera-grid{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:14px}.hnc-canvas-stage{position:relative;min-height:360px;display:grid;place-items:center;background:#111827;border-radius:12px;overflow:hidden;touch-action:none}.hnc-canvas-stage video,.hnc-canvas-stage canvas{display:block;max-width:100%;max-height:calc(100dvh - 210px)}.hnc-canvas-stage canvas{background:#fff}.hnc-cam-help{background:#fff;border:1px solid #dce5ef;border-radius:12px;padding:14px;font-size:12px;line-height:1.6;color:#526176}.hnc-cam-help b{display:block;color:#253b60;font-size:13px;margin-bottom:5px}.hnc-draw-tools{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.hnc-draw-color{width:32px;height:32px;border:2px solid #fff;border-radius:50%;box-shadow:0 0 0 1px #cbd5e1;cursor:pointer}.hnc-draw-color.on{box-shadow:0 0 0 2px #2563eb}.hnc-draw-range{width:100%;margin-top:10px}.hnc-region-note{padding:8px 10px;margin-top:10px;background:#eff6ff;border-radius:8px;color:#315588;font-size:11px}
.hnc-video-box{width:min(1080px,100%)}.hnc-video-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:14px}.hnc-player-wrap{position:relative;background:#05070b;aspect-ratio:16/9;border-radius:12px;overflow:hidden}.hnc-player-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.hnc-video-canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;pointer-events:none}.hnc-video-canvas.on{pointer-events:auto;cursor:crosshair}.hnc-video-side{background:#fff;border:1px solid #dce5ef;border-radius:12px;padding:13px;display:flex;flex-direction:column;gap:10px}.hnc-video-side h3{font-size:13px;margin:0;line-height:1.45}.hnc-video-side p{font-size:11px;color:#64748b;line-height:1.55;margin:0}.hnc-video-q{width:100%;min-height:72px;border:1px solid #cbd5e1;border-radius:9px;padding:9px;resize:vertical;font:500 12px/1.5 inherit}.hnc-ground{padding:10px;border-radius:9px;background:#f1f5f9;font-size:11.5px;line-height:1.55;color:#475569}.hnc-ground.ok{background:#eff6ff;color:#234f91}.hnc-seek{width:100%;margin-top:7px;background:#2563eb;color:#fff;border:0;border-radius:8px;height:34px;font:800 11.5px inherit;cursor:pointer}
body.hnc-open{overflow:hidden}.hnc-scrim{position:fixed;z-index:2147482050;inset:0;background:rgba(15,23,42,.2);opacity:0;pointer-events:none;transition:opacity .2s}.hnc-scrim.on{opacity:1;pointer-events:auto}
@media(max-width:780px){.hnc-panel{width:100vw}.hnc-camera-grid,.hnc-video-layout{grid-template-columns:1fr}.hnc-cam-help{display:none}.hnc-video-side{max-height:300px}.hnc-modal{padding:0}.hnc-modal-box{height:100dvh;max-height:none;border-radius:0}.hnc-canvas-stage{min-height:280px}.topbar{flex-wrap:wrap}.topbar .tt{margin-right:auto}}
@media(prefers-reduced-motion:reduce){.hnc-panel,.hnc-scrim{transition:none}.hnc-typing i{animation:none}}