/* aileelab learn — 공용 스타일. 분야 폴더 안에서만 쓴다 */
:root{
  --bg:#FBFAF7; --fg:#1B2233; --muted:#5B6476; --line:#E3E0D8; --panel:#FFFFFF;
  --accent:#14213D; --hi:#C94F0A; --s1:#0072B2; --s2:#D55E00; --s3:#009E73;
  --fs:18px; --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#11161F; --fg:#E8E6E0; --muted:#9AA3B2; --line:#2A3241; --panel:#171D28;
  --accent:#F6F4EF; --hi:#F2884B; --s1:#56B4E9; --s2:#E69F00; --s3:#4CC3A0;}}
:root[data-theme="dark"]{
  --bg:#11161F; --fg:#E8E6E0; --muted:#9AA3B2; --line:#2A3241; --panel:#171D28;
  --accent:#F6F4EF; --hi:#F2884B; --s1:#56B4E9; --s2:#E69F00; --s3:#4CC3A0;}
:root[data-big="1"]{--fs:24px}
*{box-sizing:border-box}
html{font-size:var(--fs)}
body{margin:0;background:var(--bg);color:var(--fg);font:1rem/1.7 "Pretendard","Noto Sans KR",system-ui,sans-serif}
a{color:inherit}
p,li,td{overflow-wrap:anywhere}
.katex-display{overflow-x:auto;overflow-y:hidden;padding:4px 0}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
.wide{max-width:1100px;margin:0 auto;padding:0 16px}
header.top{padding:28px 0 8px}
header.top .field{font-size:.8rem;color:var(--muted);text-decoration:none}
header.top h1{margin:.2rem 0 0;font-size:2rem;line-height:1.2;letter-spacing:-.01em}
header.top .sub{color:var(--muted);font-size:.9rem}
.tools{display:flex;gap:6px;justify-content:flex-end;padding-top:12px}
.tools button{font:inherit;font-size:.75rem;padding:4px 10px;border:1px solid var(--line);background:var(--panel);color:var(--fg);border-radius:6px;cursor:pointer}
nav.tabs{position:sticky;top:0;z-index:5;background:var(--bg);border-bottom:1px solid var(--line);overflow-x:auto;white-space:nowrap;scrollbar-width:thin}
nav.tabs a{display:inline-block;padding:12px 14px;text-decoration:none;color:var(--muted);font-size:.9rem;border-bottom:3px solid transparent}
nav.tabs a[aria-selected="true"]{color:var(--fg);font-weight:700;border-bottom-color:var(--hi)}
section.tab{display:none;padding:8px 0 40px}
section.tab.on{display:block}
h2{font-size:1.4rem;margin:2rem 0 .4rem}
h3{font-size:1.1rem;margin:1.8rem 0 .3rem}
h2 small,h3 small{font-weight:400;color:var(--muted);font-size:.7em;margin-left:.4em}
.anchor{opacity:0;margin-left:.3em;text-decoration:none;color:var(--muted);font-size:.8em;cursor:pointer}
h2:hover .anchor,h3:hover .anchor,.anchor:focus{opacity:1}
.hands{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px;margin:12px 0}
.hands .ctl{display:grid;grid-template-columns:auto 1fr auto;gap:6px 12px;align-items:center;font-size:.85rem}
.hands input[type=range]{width:100%}
.hands .val{font-family:var(--mono);min-width:6ch;text-align:right}
.hands .row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.hands .row button{font:inherit;font-size:.75rem;padding:4px 10px;border:1px solid var(--line);background:transparent;color:var(--fg);border-radius:6px;cursor:pointer}
.hands canvas{width:100%;height:260px;display:block;margin-top:10px}
.readout{font-family:var(--mono);font-size:.85rem;margin-top:8px;color:var(--muted)}
.note{font-size:.8rem;color:var(--muted)}
table.notation{border-collapse:collapse;width:100%;font-size:.85rem}
table.notation td,table.notation th{border-bottom:1px solid var(--line);padding:6px 8px;text-align:left}
ol.refs{font-size:.85rem;padding-left:1.2em}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin:20px 0 40px}
.card{display:block;padding:16px;border:1px solid var(--line);border-radius:10px;background:var(--panel);text-decoration:none}
.card b{display:block;font-size:1.05rem}
.card span{font-size:.8rem;color:var(--muted)}
.disclaimer{font-size:.75rem;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-top:24px}
footer.brand{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:24px 16px 32px;font-size:12px;opacity:.85;max-width:1100px;margin:0 auto}
footer.brand img{height:20px;display:block}
footer.brand .wm-dark{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) footer.brand .wm-light{display:none}:root:not([data-theme="light"]) footer.brand .wm-dark{display:block}}
:root[data-theme="dark"] footer.brand .wm-light{display:none}
:root[data-theme="dark"] footer.brand .wm-dark{display:block}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:6px 12px;border-radius:6px;font-size:.8rem;opacity:0;transition:opacity .2s;pointer-events:none}
.toast.on{opacity:1}
@media print{
  nav.tabs,.tools,.hands .row,.anchor{display:none!important}
  section.tab{display:block!important;page-break-before:always}
  section.tab:first-of-type{page-break-before:auto}
  body{background:#fff;color:#000}
}
.wide>h2{max-width:728px;margin:2rem auto .4rem}
html[lang="en"] h2 small,html[lang="en"] h3 small{display:none}
/* Trustworthy AI extension — retained template foundation. */
:root{--bg:#f7f8f5;--panel:#ffffff;--fg:#182b2c;--muted:#566865;--line:#dbe3df;--accent:#173f3b;--hi:#bb542c;--s1:#0072b2;--s2:#d55e00;--s3:#008568}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#111b1c;--panel:#172628;--fg:#e7f0eb;--muted:#a7bdb6;--line:#35494a;--accent:#a3d6c8;--hi:#f2a17c;--s1:#56b4e9;--s2:#e69f00;--s3:#71d3b3}}
:root[data-theme=dark]{--bg:#111b1c;--panel:#172628;--fg:#e7f0eb;--muted:#a7bdb6;--line:#35494a;--accent:#a3d6c8;--hi:#f2a17c;--s1:#56b4e9;--s2:#e69f00;--s3:#71d3b3}
body{line-height:1.8}button,input,select{font:inherit}button,select{color:var(--fg);background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:7px 11px}button{cursor:pointer}button:hover{border-color:var(--hi)}button:disabled{opacity:.5;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--s1);outline-offset:3px}input[type=range]{accent-color:var(--accent);width:100%}input[type=number]{color:var(--fg);background:var(--panel);border:1px solid var(--line);border-radius:5px;max-width:12ch;padding:4px 6px}a{text-underline-offset:.2em}.skip{position:fixed;left:16px;top:-100px;z-index:99;background:var(--panel);padding:10px}.skip:focus{top:12px}
.tools{padding-top:20px;align-items:center;flex-wrap:wrap}.tools button,.tools a{font-size:.72rem;padding:5px 10px;text-decoration:none}.tools a{border-left:1px solid var(--line);color:var(--accent)}.eyebrow{font-family:var(--mono);font-size:.62rem;letter-spacing:.17em;color:var(--muted);margin:30px 0 15px}header.top{padding:10px 16px 30px}header.top h1{font-size:2.35rem;letter-spacing:-.04em;font-weight:750;line-height:1.16}header.home h1{font-size:3.15rem}.subtitle{font-size:1.1rem;margin-top:14px;color:var(--accent)}header.top .sub{max-width:650px;margin-bottom:0;font-size:.95rem}.section-label{border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;font-size:.78rem;color:var(--muted)}.cards{grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.card{padding:24px;border-radius:8px;transition:transform .15s,border-color .15s}.card:hover{transform:translateY(-3px);border-color:var(--accent)}.card-top{display:flex;justify-content:space-between;align-items:center}.card .card-index{font: .8rem var(--mono);color:var(--hi)}.card .card-arrow{font-size:1.5rem;color:var(--accent)}.card h2{font-size:1.35rem;margin:25px 0 10px;letter-spacing:-.025em;line-height:1.3}.card p{font-size:.87rem;color:var(--muted);margin:0 0 25px}.card-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);padding-top:15px}.card-bottom>span:first-child{white-space:nowrap}.card-bottom span{font-size:.65rem}.card-bottom>span:last-child{text-align:right}
nav.tabs{border-top:1px solid var(--line)}.tab-inner{max-width:1100px;margin:auto;display:flex;min-width:max-content}nav.tabs a{font-size:.78rem;flex:1;text-align:center;padding:15px 14px}nav.tabs a span{font: .65rem var(--mono);margin-right:5px;color:var(--hi)}.tab-kicker{color:var(--accent);font: .73rem var(--mono);border-bottom:1px solid var(--line);padding-bottom:16px;margin-top:30px}.session-bar{display:flex;align-items:center;gap:8px;padding-top:20px;font-size:.68rem;color:var(--muted);flex-wrap:wrap}.session-bar label{margin-left:auto}.status-dot{width:7px;height:7px;border-radius:50%;background:var(--s3)}h2{font-size:1.3rem;font-weight:700;letter-spacing:-.025em;margin-top:2.5rem}.anchor{opacity:.55;font: .8em var(--mono);padding:2px 4px}.concept-figure{margin:25px 0 0}.concept-figure svg{width:100%;height:auto;display:block}.equation{overflow-x:auto;border-left:3px solid var(--accent);padding:12px 18px;background:var(--panel);margin:20px 0;font-size:.88rem}.equation .katex-display{margin:0}
.hands{padding:26px;border-radius:10px;border:1px solid var(--line);box-shadow:0 4px 22px #14213d05}.demo-instructions{max-width:728px;font-size:.85rem;margin-bottom:22px;color:var(--muted)}.controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 28px;border-bottom:1px solid var(--line);padding-bottom:22px}.control{min-width:0}.control label,.control legend{font-size:.74rem;display:block;margin-bottom:7px;color:var(--muted)}.control select{width:100%;font-size:.85rem;min-height:43px}.control .slider-row{display:flex;align-items:center;gap:14px}.control output{font:.78rem var(--mono);min-width:5ch;text-align:right}.control fieldset{border:0;margin:0;padding:0}.control .checks{display:flex;flex-wrap:wrap;gap:4px 18px}.control .checks label{font-size:.7rem}.control-full{grid-column:1/-1}.demo-actions{display:flex;gap:8px;margin-top:18px;flex-wrap:wrap}.demo-actions button{font-size:.72rem}.demo-result{min-height:160px;padding-top:20px}.demo-result[aria-busy=true]{opacity:.55}.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden;margin:10px 0 26px}.metric{padding:13px 15px;background:var(--panel)}.metric span{display:block;color:var(--muted);font-size:.65rem}.metric strong{font:1.35rem var(--mono);letter-spacing:-.05em}.metric small{font-size:.65rem;color:var(--muted);margin-left:6px}.chart{margin:15px 0 20px}.chart svg{display:block;width:100%;overflow:visible}.chart-axis{font-size:.68rem;color:var(--muted);margin:5px 0;overflow-wrap:anywhere}.chart-axis.x{text-align:center}.chart-legend{display:flex;gap:10px 20px;flex-wrap:wrap;font-size:.65rem}.chart-legend span{display:flex;gap:6px;align-items:center}.chart-legend i{width:22px;border-top:2px solid var(--s1);display:inline-block}.chart-title{font-size:.8rem;font-weight:600}.result-note{font-size:.78rem;background:var(--bg);border-left:3px solid var(--s3);padding:12px 16px}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:6px;margin:16px 0}.table-scroll table{border-collapse:collapse;width:100%;font-size:.74rem;white-space:nowrap}.table-scroll th{color:var(--muted);background:var(--bg);font-weight:500}.table-scroll th,.table-scroll td{padding:8px 12px;border-bottom:1px solid var(--line);text-align:left}.table-scroll tr:last-child td{border-bottom:0}.table-scroll td:not(:first-child){font-family:var(--mono)}.notation{white-space:normal!important}.notation td:first-child{font-family:var(--mono)}.table-scroll .text-table{white-space:normal}.table-scroll .text-table td{font-family:inherit!important;min-width:140px}.readout{font-size:.65rem}.data-attribution{font-size:.65rem;color:var(--muted);margin:12px 0}.loading{color:var(--muted);font-size:.8rem;min-height:140px}.loading:before{content:'●';color:var(--s3);padding-right:10px}.error{color:var(--hi);border:1px solid var(--hi);padding:16px}.license-result{border:1px solid var(--line);padding:16px;border-radius:6px;margin-bottom:14px}.license-result h3{margin:0 0 8px;font-size:.9rem}.license-result li{font-size:.8rem}.disclaimer{margin-top:30px}.brand{border-top:1px solid var(--line);margin-top:30px}.brand img{width:auto;height:20px}.refs{line-height:1.7}.refs li{margin-bottom:10px}.toast{z-index:20;max-width:calc(100% - 32px)}
@media(max-width:600px){header.home h1{font-size:2.4rem}header.top h1{font-size:1.9rem}.cards{grid-template-columns:1fr;gap:12px}.card{padding:20px}.card h2{margin-top:20px}.card-bottom>span:last-child{max-width:70%}.hands{padding:16px 12px}.controls{grid-template-columns:1fr;gap:16px}.metrics{grid-template-columns:1fr 1fr}.metric{padding:12px 9px}.metric strong{font-size:1.15rem}.metric span{font-size:.62rem}.session-bar label{margin-left:0;width:100%;margin-top:4px}.tab-inner{justify-content:flex-start}nav.tabs a{text-align:left}.tools{gap:4px}.tools button,.tools a{padding:5px 8px}.equation{padding:10px;font-size:.78rem}.table-scroll table{font-size:.68rem}.table-scroll th,.table-scroll td{padding:7px 9px}.brand{gap:10px}.card p{font-size:.84rem}}
@media print{ :root,:root[data-theme=dark]{--bg:#fff;--panel:#fff;--fg:#111;--muted:#444;--line:#bbb;--accent:#173f3b;--hi:#943e1b;--s1:#0072b2;--s2:#d55e00;--s3:#008568;--fs:12px}nav.tabs,.tools,.controls,.demo-actions,.session-bar,.anchor,.skip{display:none!important}section.tab{display:block!important;break-before:page;page-break-before:always}section.tab:first-of-type{break-before:auto;page-break-before:auto}.wrap,.wide{max-width:none;width:100%}.hands{box-shadow:none;padding:14px;break-inside:auto}.chart,.metrics,.concept-figure{break-inside:avoid}.table-scroll{overflow:visible}a{text-decoration:none}.disclaimer{margin-top:16px}body{print-color-adjust:exact;-webkit-print-color-adjust:exact}.table-scroll table{font-size:11px}h2{break-after:avoid}.demo-instructions{font-size:12px}}

:root[data-big="1"] .concept-figure text{font-size:25px}