#ssn{--kp-bg:light-dark(#f7f8f5,#161d1b);--kp-paper:light-dark(#fff,#202a26);--kp-ink:light-dark(#213c32,#e5eee8);--kp-sub:light-dark(#607068,#a6b9ad);--kp-line:light-dark(#e1e7e0,#38483f);--kp-green:light-dark(#2e614b,#a3d2b6);--kp-green-text:light-dark(#fff,#163c29);--kp-soft:light-dark(#eaf1e8,#293e32);--kp-gold:light-dark(#836125,#dec38d);--kp-gold-bg:light-dark(#f5eedf,#3e3523);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;color:var(--kp-ink);font-size:14px;line-height:1.65;width:100%;color-scheme:light dark}#ssn *{box-sizing:border-box}#ssn button,#ssn input,#ssn select,#ssn textarea{font:inherit;color:inherit}#ssn button{touch-action:manipulation;min-height:42px}#ssn button:disabled{opacity:.55;cursor:default}#ssn button:focus-visible,#ssn input:focus-visible,#ssn textarea:focus-visible{outline:2px solid var(--kp-green);outline-offset:3px}#ssn svg{flex-shrink:0}#ssn .kp-shell{background:var(--kp-bg);border:1px solid var(--kp-line);border-radius:18px;overflow:hidden;max-width:100%;margin:auto}#ssn .kp-header{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:20px 25px;background:var(--kp-paper);border-bottom:1px solid var(--kp-line)}#ssn .kp-brand{display:flex;align-items:center;gap:12px}#ssn .kp-logo{width:38px;height:38px;border-radius:11px;background:var(--kp-green);color:var(--kp-green-text);display:grid;place-items:center}#ssn .kp-logo svg{width:24px;height:24px}#ssn .kp-brand strong{font-weight:600;font-size:17px;letter-spacing:.03em;display:block}#ssn .kp-brand span:not(.kp-logo){display:block;font-size:11px;color:var(--kp-sub)}#ssn .kp-sync{display:flex;gap:7px;align-items:center;border:0;background:var(--kp-soft);color:var(--kp-green);padding:5px 11px;border-radius:8px;font-size:12px;white-space:nowrap}#ssn .kp-demobar{padding:8px 24px;background:var(--kp-gold-bg);color:var(--kp-gold);display:flex;gap:12px;flex-wrap:wrap;font-size:11px}#ssn .kp-demobar span:first-child{font-weight:600}#ssn .kp-layout{display:grid;grid-template-columns:177px minmax(0,1fr)}#ssn .kp-nav{padding:25px 12px;border-right:1px solid var(--kp-line);background:var(--kp-paper)}#ssn .kp-nav button{display:flex;align-items:center;gap:11px;width:100%;border:0;background:transparent;color:var(--kp-sub);padding:11px 12px;border-radius:8px;margin-bottom:6px;text-align:left;font-size:13px}#ssn .kp-nav button[aria-current=page]{background:var(--kp-soft);color:var(--kp-green);font-weight:600}#ssn .kp-nav button:hover{background:var(--kp-soft)}#ssn .kp-navfoot{margin:60px 10px 15px;display:grid;gap:4px;font-size:11px;color:var(--kp-sub)}#ssn .kp-main{padding:29px 30px 34px;min-width:0}#ssn h1,#ssn h2,#ssn h3,#ssn p{margin:0}#ssn h1{font-size:25px;font-weight:500;line-height:1.5;letter-spacing:.02em}#ssn h2{font-size:18px;font-weight:600;line-height:1.6}#ssn h3{font-size:15px;font-weight:600}#ssn .kp-kicker{font-size:11px;letter-spacing:.09em;color:var(--kp-sub);margin-bottom:7px}#ssn .kp-desc{margin-top:8px;color:var(--kp-sub);font-size:13px}#ssn .kp-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}#ssn .kp-section{margin-top:27px}#ssn .kp-small{font-size:12px;color:var(--kp-sub)}#ssn .kp-hero{margin-top:24px;background:var(--kp-soft);border-radius:14px;padding:24px;display:grid;grid-template-columns:minmax(0,1fr) 128px;gap:20px}#ssn .kp-hero h2{font-size:22px;max-width:380px;margin:7px 0 10px;font-weight:500}#ssn .kp-hero .kp-desc{margin:0 0 18px}#ssn .kp-heroart{align-self:center;display:grid;place-items:center;min-height:130px}#ssn .kp-ring{width:108px;height:108px;border-radius:50%;background:conic-gradient(var(--kp-green) calc(var(--progress)*1%),var(--kp-line) 0);display:grid;place-items:center}#ssn .kp-ringinner{width:88px;height:88px;border-radius:50%;background:var(--kp-soft);display:flex;align-items:center;justify-content:center;flex-direction:column}#ssn .kp-ringinner strong{font-size:23px;font-weight:500;font-variant-numeric:tabular-nums}#ssn .kp-ringinner span{font-size:10px;color:var(--kp-sub)}#ssn .kp-primary,#ssn .kp-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;padding:10px 16px;border:1px solid var(--kp-line);text-decoration:none;font-size:13px}#ssn .kp-primary{background:var(--kp-green);color:var(--kp-green-text);border-color:transparent}#ssn .kp-secondary{background:var(--kp-paper)}#ssn .kp-link{border:0;background:transparent;padding:5px 0;color:var(--kp-green);font-size:12px;display:inline-flex;gap:6px;align-items:center}#ssn .kp-tag{font-size:11px;padding:3px 8px;background:var(--kp-bg);color:var(--kp-sub);border-radius:5px;display:inline-block}#ssn .kp-tag.green{background:var(--kp-soft);color:var(--kp-green)}#ssn .kp-coursegrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:13px}#ssn .kp-course{border:1px solid var(--kp-line);background:var(--kp-paper);border-radius:11px;padding:18px;text-align:left;width:100%;display:flex;flex-direction:column;align-items:flex-start;gap:13px}#ssn .kp-course:hover{border-color:var(--kp-green)}#ssn .kp-courseicon{width:31px;height:31px;display:grid;place-items:center;background:var(--kp-soft);border-radius:8px;color:var(--kp-green)}#ssn .kp-course strong{font-weight:600;font-size:14px}#ssn .kp-course small{font-size:11px;color:var(--kp-sub)}#ssn .kp-track{height:5px;border-radius:5px;background:var(--kp-line);overflow:hidden;width:100%;margin:3px 0}#ssn .kp-track span{height:100%;display:block;background:var(--kp-green);border-radius:5px}#ssn .kp-list{margin-top:12px;border-top:1px solid var(--kp-line)}#ssn .kp-item{border:0;border-bottom:1px solid var(--kp-line);padding:16px 0;display:flex;align-items:center;gap:12px;width:100%;background:transparent;text-align:left}#ssn .kp-item:hover{background:var(--kp-soft)}#ssn .kp-itemtext{flex:1;min-width:0}#ssn .kp-itemtext strong{font-size:14px;font-weight:500;display:block}#ssn .kp-itemtext small{font-size:11px;color:var(--kp-sub);display:block;margin-top:3px}#ssn .kp-number{width:30px;height:30px;border-radius:50%;background:var(--kp-paper);display:grid;place-items:center;border:1px solid var(--kp-line);font-size:11px;flex-shrink:0}#ssn .kp-number.done{background:var(--kp-green);color:var(--kp-green-text);border:0}#ssn .kp-panel{background:var(--kp-paper);padding:22px;border:1px solid var(--kp-line);border-radius:12px;margin-top:18px}#ssn .kp-panel p{margin-top:12px;font-size:14px;line-height:1.95}#ssn .kp-search{display:flex;align-items:center;gap:10px;border:1px solid var(--kp-line);background:var(--kp-paper);border-radius:9px;padding:9px 12px;margin-top:20px}#ssn .kp-search input{border:0;background:transparent;outline:none;width:100%;min-width:0;font-size:16px}#ssn .kp-filters{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}#ssn .kp-chip{border:1px solid var(--kp-line);background:var(--kp-paper);border-radius:8px;padding:7px 12px;font-size:12px}#ssn .kp-chip[aria-pressed=true]{background:var(--kp-green);color:var(--kp-green-text);border-color:transparent}#ssn .kp-unitheading{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-top:14px}#ssn .kp-unitheading h1{font-size:23px}#ssn .kp-iconbutton{display:grid;place-items:center;min-width:40px;width:40px;height:40px;border:1px solid var(--kp-line);background:var(--kp-paper);border-radius:8px;color:var(--kp-green)}#ssn .kp-iconbutton[aria-pressed=true]{background:var(--kp-soft);border-color:var(--kp-green)}#ssn .kp-tabs{display:flex;border-bottom:1px solid var(--kp-line);gap:0;flex-wrap:wrap;margin-top:21px}#ssn .kp-tabs button{background:transparent;border:0;border-bottom:2px solid transparent;padding:10px 12px;color:var(--kp-sub);font-size:12px}#ssn .kp-tabs button[aria-pressed=true]{border-bottom-color:var(--kp-green);color:var(--kp-green);font-weight:600}#ssn .kp-reading{margin-top:24px}#ssn .kp-reading p{line-height:2;margin:11px 0 19px}#ssn .kp-reading h3{margin-top:23px}#ssn .kp-reading ol{padding-left:22px;line-height:2}#ssn .kp-reading li{padding-left:3px;margin-bottom:6px}#ssn .kp-vocab{margin-top:20px;background:var(--kp-paper);padding:16px 18px;border-radius:8px;display:flex;gap:14px;align-items:flex-start;font-size:12px}#ssn .kp-vocab strong{white-space:nowrap;font-weight:600}#ssn .kp-footeractions{border-top:1px solid var(--kp-line);padding-top:20px;margin-top:27px}#ssn .kp-levels{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}#ssn .kp-levels button{border:1px solid var(--kp-line);background:var(--kp-paper);border-radius:8px;padding:7px 11px;font-size:12px}#ssn .kp-levels button[aria-pressed=true]{background:var(--kp-green);color:var(--kp-green-text);border-color:transparent}#ssn .kp-player{width:100%;display:block;background:#14221c;border-radius:10px;margin-top:13px;aspect-ratio:8/3;max-height:260px}#ssn audio.kp-player{aspect-ratio:auto;background:transparent;height:54px;border-radius:0}#ssn .kp-mediarow{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:14px}#ssn .kp-chapter{display:flex;align-items:flex-start;gap:12px;border:0;border-bottom:1px solid var(--kp-line);padding:13px 0;text-align:left;width:100%;background:transparent}#ssn .kp-chapter span:first-child{font-variant-numeric:tabular-nums;font-size:12px;color:var(--kp-green);padding-top:2px;min-width:39px}#ssn .kp-chapter[aria-current=true]{background:var(--kp-soft)}#ssn .kp-chapter strong{font-size:13px;font-weight:500;display:block}#ssn .kp-chapter small{color:var(--kp-sub);font-size:11px}#ssn .kp-field{display:block;font-size:12px;color:var(--kp-sub);margin-top:18px}#ssn textarea{width:100%;resize:vertical;min-height:112px;border:1px solid var(--kp-line);border-radius:8px;padding:12px;background:var(--kp-paper);font-size:16px;margin-top:7px}#ssn .kp-practice{display:flex;align-items:flex-start;gap:11px;padding:12px 0;border-bottom:1px solid var(--kp-line);font-size:13px;min-height:45px}#ssn input[type=checkbox]{width:18px;height:18px;margin:3px 0;accent-color:var(--kp-green);flex-shrink:0}#ssn .kp-proofrow{padding:11px 0;border-bottom:1px solid var(--kp-line);display:grid;grid-template-columns:108px minmax(0,1fr);gap:12px;font-size:12px}#ssn .kp-proofrow span:first-child{color:var(--kp-sub)}#ssn .kp-diagram{margin-top:18px;width:100%;height:174px;display:block;color:var(--kp-green);background:var(--kp-paper);border-radius:10px;border:1px solid var(--kp-line)}#ssn .kp-diagram text{font-size:12px;fill:var(--kp-ink);font-family:inherit}#ssn .kp-prompt{font-size:21px;line-height:1.8;margin:18px 0 25px}#ssn .kp-answer{margin:18px 0 20px;padding:18px;background:var(--kp-soft);border-radius:8px;line-height:1.9}#ssn .kp-empty{padding:35px 16px;text-align:center;color:var(--kp-sub);font-size:13px}#ssn .kp-notetext{white-space:pre-wrap;overflow-wrap:anywhere;padding:14px 0;line-height:1.8}#ssn .kp-historyrow{font-size:12px;padding:12px 0;border-bottom:1px solid var(--kp-line)}#ssn .kp-historyrow time{font-size:11px;color:var(--kp-sub);display:block;margin-top:3px}#ssn .kp-status{padding:10px 24px;background:var(--kp-paper);border-top:1px solid var(--kp-line);color:var(--kp-sub);font-size:11px;min-height:39px}@media(max-width:680px){#ssn .kp-layout{display:block}#ssn .kp-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:8px;border-right:0;border-bottom:1px solid var(--kp-line);gap:3px}#ssn .kp-nav button{flex-direction:column;gap:4px;font-size:11px;padding:7px 3px;margin:0;text-align:center}#ssn .kp-navfoot{display:none}#ssn .kp-header{padding:17px 15px}#ssn .kp-brand{gap:9px}#ssn .kp-brand strong{font-size:16px}#ssn .kp-brand span:not(.kp-logo){font-size:10px}#ssn .kp-sync{font-size:11px;padding:4px 7px}#ssn .kp-demobar{padding:8px 15px;gap:2px;display:grid}#ssn .kp-main{padding:23px 18px 28px}#ssn .kp-hero{padding:20px;grid-template-columns:1fr}#ssn .kp-heroart{display:none}#ssn .kp-coursegrid{grid-template-columns:1fr}#ssn .kp-course{display:grid;grid-template-columns:32px minmax(0,1fr);gap:6px 12px;padding:15px}#ssn .kp-courseicon{grid-row:1/4}#ssn h1{font-size:23px}#ssn .kp-tabs button{padding:10px 8px;font-size:11px}#ssn .kp-panel{padding:17px}#ssn .kp-vocab{display:grid;gap:4px}#ssn .kp-item .kp-tag{max-width:66px;flex-shrink:0;text-align:center}#ssn .kp-status{padding:10px 16px}}@media(prefers-reduced-motion:no-preference){#ssn button{transition:background .15s,border-color .15s}}#ssn{--kp-error:light-dark(#98524a,#f0b1a8);--kp-error-bg:light-dark(#faf0ed,#402b29)}#ssn .kp-quizmodes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:24px 0}#ssn .kp-quizmode{border:1px solid var(--kp-line);border-radius:12px;background:var(--kp-paper);padding:19px 10px;display:flex;flex-direction:column;align-items:center;gap:10px}#ssn .kp-quizmode[aria-pressed=true]{background:var(--kp-soft);border-color:var(--kp-green)}#ssn .kp-modeicon{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--kp-bg);color:var(--kp-green)}#ssn .kp-quizmode strong{font-weight:600;font-size:15px}#ssn .kp-quizmode small{font-size:11px;color:var(--kp-sub)}#ssn .kp-qsetup{padding:23px;background:var(--kp-paper);border:1px solid var(--kp-line);border-radius:12px}#ssn .kp-qsetting{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-bottom:20px;margin-bottom:20px;border-bottom:1px solid var(--kp-line)}#ssn .kp-qsetting:last-of-type{border:0;padding-bottom:0;margin-bottom:18px}#ssn .kp-qsetting .kp-filters{margin:0}#ssn .kp-qstart{width:100%;min-height:48px}#ssn .kp-qresume{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;background:var(--kp-soft);border-radius:10px;padding:14px 18px;margin-bottom:18px;font-size:12px}#ssn .kp-quizhelp{display:flex;gap:9px;align-items:center;margin-top:18px;color:var(--kp-sub);font-size:12px;flex-wrap:wrap}#ssn .kp-quizbar{display:flex;align-items:center;justify-content:space-between;gap:14px}#ssn .kp-quizprogress{display:flex;gap:5px;margin:12px 0 22px}#ssn .kp-quizprogress span{height:4px;flex:1;background:var(--kp-line);border-radius:4px}#ssn .kp-quizprogress span.done{background:var(--kp-green)}#ssn .kp-quizprogress span.current{background:var(--kp-green);opacity:.4}#ssn .kp-quizquestion{font-size:23px;line-height:1.7;font-weight:500;margin:14px 0 24px}#ssn .kp-choices{display:grid;gap:9px}#ssn .kp-choice{background:var(--kp-paper);border:1px solid var(--kp-line);border-radius:10px;padding:13px 15px;display:flex;gap:12px;align-items:center;text-align:left;min-height:57px;width:100%}#ssn .kp-choice:disabled{opacity:1}#ssn .kp-choiceletter{width:27px;height:27px;flex-shrink:0;display:grid;place-items:center;border-radius:7px;background:var(--kp-bg);font-size:12px;color:var(--kp-sub)}#ssn .kp-choicebody{flex:1;min-width:0;font-size:14px}#ssn .kp-choice.good{border-color:var(--kp-green);background:var(--kp-soft)}#ssn .kp-choice.wrong{border-color:var(--kp-error);background:var(--kp-error-bg)}#ssn .kp-choiceflag{font-size:11px;white-space:nowrap;color:var(--kp-green)}#ssn .kp-choice.wrong .kp-choiceflag{color:var(--kp-error)}#ssn .kp-binary{display:grid;grid-template-columns:1fr 1fr;gap:12px}#ssn .kp-binary .kp-choice{flex-direction:column;gap:6px;padding:17px 12px;min-height:111px;text-align:center}#ssn .kp-binarymark{font-size:36px;font-weight:400;line-height:1.2}#ssn .kp-qfeedback{border-radius:10px;padding:16px 18px;background:var(--kp-soft);margin:19px 0 0}#ssn .kp-qfeedback.wrong{background:var(--kp-error-bg)}#ssn .kp-qfeedback strong{font-weight:600;display:flex;gap:8px;align-items:center;font-size:14px}#ssn .kp-qfeedback p{font-size:13px;margin-top:8px;line-height:1.85}#ssn .kp-qbottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:18px}#ssn .kp-flip{width:100%;min-height:220px;border:1px solid var(--kp-line);border-radius:14px;background:var(--kp-paper);padding:27px 22px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:23px}#ssn .kp-flip strong{font-size:23px;line-height:1.7;font-weight:500}#ssn .kp-flip span:last-child{font-size:12px;color:var(--kp-sub);display:flex;align-items:center;gap:8px}#ssn .kp-flashanswer{background:var(--kp-soft);border-radius:14px;padding:25px 23px;margin-top:15px;text-align:center}#ssn .kp-flashanswer h2{font-size:24px;font-weight:500;margin:14px 0}#ssn .kp-flashanswer p{font-size:13px;line-height:1.9}#ssn .kp-selfrates{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}#ssn .kp-qresult{background:var(--kp-soft);border-radius:14px;padding:28px 20px;text-align:center;margin:22px 0}#ssn .kp-qresult .kp-score{font-size:42px;font-weight:500;font-variant-numeric:tabular-nums;margin:7px 0}#ssn .kp-qresult .kp-score small{font-size:20px;color:var(--kp-sub)}#ssn .kp-qresults{margin:20px 0;border-top:1px solid var(--kp-line)}#ssn .kp-qresultrow{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--kp-line);padding:13px 0}#ssn .kp-qresultrow .kp-resultlabel{font-size:11px;min-width:66px;color:var(--kp-sub)}#ssn .kp-qresultrow .kp-resultlabel.good{color:var(--kp-green)}#ssn .kp-qresultrow .kp-resultlabel.wrong{color:var(--kp-error)}#ssn .kp-qresultrow .kp-link{margin-left:auto}#ssn .kp-quickentry{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:19px 22px;background:var(--kp-paper);border:1px solid var(--kp-line);border-radius:12px;margin-top:22px}#ssn .kp-quickentry p{font-size:12px;color:var(--kp-sub);margin-top:4px}#ssn .kp-shell.kp-studying .kp-nav{display:none}#ssn .kp-shell.kp-studying .kp-layout{display:block}#ssn .kp-shell.kp-studying .kp-main{max-width:720px;margin:auto;padding-top:17px}#ssn .kp-shell.kp-studying .kp-header{padding-top:13px;padding-bottom:13px}@media(max-width:680px){#ssn .kp-quizmodes{gap:7px;margin:18px 0}#ssn .kp-quizmode{padding:15px 7px;gap:7px}#ssn .kp-qsetup{padding:18px}#ssn .kp-quizquestion{font-size:20px;margin:12px 0 19px}#ssn .kp-choice{padding:12px;gap:9px}#ssn .kp-choicebody{font-size:13px}}#ssn .kp-choicegroup{min-width:0}#ssn .kp-choice.learnable{align-items:flex-start}#ssn .kp-choice.learnable .kp-choiceletter{margin-top:2px}#ssn .kp-choice.learnable .kp-choiceflag{padding-top:5px;max-width:64px;white-space:normal;text-align:right;flex-shrink:0}#ssn .kp-choice.learnable .kp-choicebody{display:grid;gap:5px}#ssn .kp-choice-name{font-size:14px;font-weight:500}#ssn .kp-brief{display:block;font-size:12px;font-weight:400;line-height:1.75;color:var(--kp-sub)}#ssn .kp-choice-more{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--kp-green);margin-top:1px}#ssn .kp-termhint{display:flex;align-items:flex-start;gap:7px;font-size:12px;line-height:1.7;color:var(--kp-sub);margin:23px 0 13px}#ssn .kp-termhint svg{margin-top:3px}#ssn .kp-termdetail{padding:17px 18px;background:var(--kp-paper);border-left:2px solid var(--kp-green);margin:8px 0 5px;border-radius:0 8px 8px 0;overflow-wrap:anywhere}#ssn .kp-termdetail[hidden]{display:none}#ssn .kp-termenglish{color:var(--kp-sub);font-size:12px;letter-spacing:.01em;margin-bottom:10px}#ssn .kp-termblock{margin-top:12px;font-size:13px;line-height:1.85}#ssn .kp-termblock strong{display:block;font-size:11px;letter-spacing:.02em;font-weight:500;color:var(--kp-sub);margin-bottom:3px}#ssn .kp-termblock p{margin:0}#ssn .kp-termsource{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:14px;font-size:11px;color:var(--kp-sub)}#ssn .kp-termsource a{color:var(--kp-green);text-decoration:underline;text-underline-offset:3px}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}html,body{margin:0;background:light-dark(#f7f8f5,#161d1b);color-scheme:light dark}body{min-height:100dvh;overflow-x:hidden}#ssn{min-height:100dvh;box-sizing:border-box}#ssn .kp-shell{border-radius:0;border:0;min-height:100dvh;display:flex;flex-direction:column}#ssn .kp-layout{flex:1}@media(min-width:1100px){#ssn{padding:20px}#ssn .kp-shell{border:1px solid var(--kp-line);border-radius:18px;max-width:1180px;min-height:calc(100dvh - 40px)}}#ssn .kp-header{padding-top:calc(20px + env(safe-area-inset-top));padding-left:calc(25px + env(safe-area-inset-left));padding-right:calc(25px + env(safe-area-inset-right))}#ssn button{min-height:44px}#ssn .kp-iconbutton{min-width:44px;width:44px;height:44px}#ssn .kp-link,#ssn .kp-chip{min-height:44px}#ssn .kp-tabs button{min-width:44px}#ssn .kp-sync{min-height:44px}#ssn .kp-sync[data-state=error]{background:var(--kp-error-bg);color:var(--kp-error)}#ssn .kp-sync[data-state=pending],#ssn .kp-sync[data-state=local]{background:var(--kp-gold-bg);color:var(--kp-gold)}#ssn select{min-height:44px;border:1px solid var(--kp-line);border-radius:8px;background:var(--kp-paper);padding:0 8px}#ssn input[type=email],#ssn input[type=password],#ssn input[type=number],#ssn input[type=text]{width:100%;min-height:44px;border:1px solid var(--kp-line);border-radius:8px;padding:8px 12px;background:var(--kp-paper);font-size:16px;margin-top:6px}#ssn input[type=file]{max-width:100%;font-size:13px;min-height:44px}#ssn .kp-main{overflow-wrap:anywhere}#ssn .kp-status{position:sticky;bottom:0;z-index:4;padding-bottom:calc(10px + env(safe-area-inset-bottom))}#ssn .kp-visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}#ssn .kp-skip{position:absolute;left:-9999px;top:0}#ssn .kp-skip:focus{left:12px;top:12px;z-index:20;background:var(--kp-paper);padding:10px 14px;border-radius:8px}#ssn .kp-doc{margin-top:18px}#ssn .kp-doc h2{font-size:20px;margin:26px 0 8px}#ssn .kp-doc h3{font-size:16px;margin:22px 0 6px}#ssn .kp-doc h4,#ssn .kp-doc h5{font-size:14px;margin:18px 0 4px}#ssn .kp-doc p{line-height:1.95;margin:8px 0 14px}#ssn .kp-doc ul,#ssn .kp-doc ol{padding-left:22px;line-height:1.9}#ssn .kp-doc code{font-size:12px;background:var(--kp-bg);padding:1px 5px;border-radius:4px}#ssn .kp-doc blockquote{margin:8px 0;padding:4px 14px;border-left:2px solid var(--kp-line);color:var(--kp-sub)}#ssn .kp-doc hr{border:0;border-top:1px solid var(--kp-line);margin:24px 0}#ssn .kp-doc [tabindex="-1"]:focus{outline:2px solid var(--kp-green);outline-offset:4px}#ssn .kp-tablewrap{overflow-x:auto;max-width:100%}#ssn .kp-tablewrap table{border-collapse:collapse;font-size:12px;min-width:100%}#ssn .kp-tablewrap th,#ssn .kp-tablewrap td{border:1px solid var(--kp-line);padding:6px 8px;text-align:left;vertical-align:top}#ssn .kp-toc{display:grid;gap:2px;margin-top:12px;max-height:320px;overflow-y:auto;border:1px solid var(--kp-line);border-radius:10px;padding:6px 12px;background:var(--kp-paper)}#ssn .kp-toc button{background:transparent;border:0;text-align:left;padding:8px 4px;font-size:12px;color:var(--kp-green)}#ssn .kp-toc button[data-level="3"],#ssn .kp-toc button[data-level="4"]{padding-left:18px;color:var(--kp-sub)}#ssn .kp-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin-top:14px}#ssn .kp-stat{background:var(--kp-paper);border:1px solid var(--kp-line);border-radius:10px;padding:12px 14px}#ssn .kp-stat strong{display:block;font-size:22px;font-weight:500;font-variant-numeric:tabular-nums}#ssn .kp-stat span{font-size:11px;color:var(--kp-sub)}#ssn .kp-tag.gold{background:var(--kp-gold-bg);color:var(--kp-gold)}#ssn .kp-tag.error{background:var(--kp-error-bg);color:var(--kp-error)}#ssn .kp-alert{margin-top:14px;padding:12px 14px;border-radius:10px;background:var(--kp-gold-bg);color:var(--kp-gold);font-size:12px;line-height:1.8}#ssn .kp-alert.error{background:var(--kp-error-bg);color:var(--kp-error)}#ssn .kp-checklist{margin:10px 0 0;padding:0;list-style:none;font-size:12px}#ssn .kp-checklist li{padding:6px 0;border-bottom:1px solid var(--kp-line);display:flex;gap:8px}#ssn .kp-conflict{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}#ssn .kp-conflict>div{background:var(--kp-bg);border-radius:8px;padding:10px 12px;min-width:0}#ssn .kp-form{display:grid;gap:4px;margin-top:12px;max-width:420px}#ssn .kp-form label{font-size:12px;color:var(--kp-sub);margin-top:8px}#ssn .kp-selfrates.three{grid-template-columns:repeat(3,minmax(0,1fr))}#ssn .kp-mediamsg{margin-top:12px;padding:12px 14px;border-radius:10px;background:var(--kp-paper);border:1px solid var(--kp-line);font-size:12px;line-height:1.8}#ssn .kp-mediamsg.error{background:var(--kp-error-bg);color:var(--kp-error);border-color:transparent}@media(max-width:680px){#ssn .kp-header{padding-top:calc(17px + env(safe-area-inset-top));padding-left:calc(15px + env(safe-area-inset-left));padding-right:calc(15px + env(safe-area-inset-right))}#ssn .kp-nav{position:fixed;left:0;right:0;bottom:0;z-index:10;grid-template-columns:repeat(6,minmax(0,1fr));gap:0;border-bottom:0;border-top:1px solid var(--kp-line);padding:4px calc(2px + env(safe-area-inset-right)) calc(4px + env(safe-area-inset-bottom)) calc(2px + env(safe-area-inset-left))}#ssn .kp-nav button{font-size:10px;line-height:1.25;padding:5px 1px;min-height:52px;word-break:keep-all;overflow-wrap:anywhere}#ssn .kp-main{padding-bottom:calc(96px + env(safe-area-inset-bottom));padding-left:calc(18px + env(safe-area-inset-left));padding-right:calc(18px + env(safe-area-inset-right))}#ssn .kp-status{bottom:calc(62px + env(safe-area-inset-bottom))}#ssn .kp-shell.kp-studying .kp-main{padding-bottom:calc(40px + env(safe-area-inset-bottom))}#ssn .kp-shell.kp-studying .kp-status{bottom:0}#ssn .kp-conflict,#ssn .kp-selfrates.three{grid-template-columns:1fr}}@media(max-width:360px){#ssn .kp-binary{grid-template-columns:1fr 1fr;gap:8px}#ssn .kp-quizmodes{gap:5px}#ssn .kp-quizmode small{display:none}#ssn .kp-header .kp-brand span:not(.kp-logo){display:none}}#ssn .kp-evidence-hl{background:var(--kp-gold-bg);border-radius:4px;box-shadow:0 0 0 4px var(--kp-gold-bg)}#ssn .kp-qevidence{margin:14px 0 4px}#ssn .kp-qevidence .kp-filters{margin-top:8px}#ssn .kp-floatback{position:fixed;right:calc(16px + env(safe-area-inset-right));bottom:52px;z-index:11;width:auto;box-shadow:0 4px 14px #0000002e}@media(max-width:680px){#ssn .kp-floatback{bottom:calc(118px + env(safe-area-inset-bottom))}}#ssn .kp-doc [id]{scroll-margin-top:84px}