/* 电子KOL — chat app shell; frameworks drawn as a fractionating column, belief at the top, execution at the bottom */
:root{
  --bg:#EEF2F0; --side:#E5EBE8; --surface:#F9FBFA; --sunken:#E2E9E5; --ink:#16201D; --muted:#5A6763; --line:#D2DAD6;
  --accent:#2D4FD2; --accent-ink:#FFFFFF; --accent-soft:#E2E8FB;
  --solid:#1D7449; --solid-soft:#DCEFE3; --single:#8A5F00; --single-soft:#F4E8C8; --disputed:#AE3535; --disputed-soft:#F5DCDC;
  --av-l1:90%; --av-l2:32%; --av-s:65%;
  --scrim:rgba(10,16,14,.35); --shadow:0 6px 24px rgba(20,32,28,.10);
  --font-display:"LXGW WenKai TC","Kaiti SC","STKaiti","KaiTi",serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0F1513; --side:#131B18; --surface:#18221F; --sunken:#1D2724; --ink:#E3E9E6; --muted:#93A19C; --line:#2B3633;
    --accent:#8FA5FF; --accent-ink:#0D1330; --accent-soft:#1D2647;
    --solid:#72CC9A; --solid-soft:#15301F; --single:#E0B451; --single-soft:#33290F; --disputed:#F08B8B; --disputed-soft:#3A1C1C;
    --av-l1:22%; --av-l2:80%; --av-s:45%;
    --scrim:rgba(0,0,0,.55); --shadow:0 6px 24px rgba(0,0,0,.45);
    color-scheme:dark;
  }
}
*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{margin:0;overflow:hidden;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:15px;line-height:1.65;-webkit-text-size-adjust:100%}
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--font-display);font-weight:700;text-wrap:balance;margin:0;line-height:1.25}
p{margin:0}
a{color:var(--accent)}
img{max-width:100%}
.muted{color:var(--muted)}
.hint{color:var(--muted);font-size:13px}
.err{color:var(--disputed);font-size:14px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button{font:inherit;color:inherit}
textarea,input[type=text],input[type=password],input[type=number],input[type=search],input[type=url],select{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:9px 12px;min-width:0;width:100%}
textarea{resize:vertical;line-height:1.6}
select{width:auto}
code{font-family:var(--font-mono);font-size:13px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:8px 16px;cursor:pointer;font-weight:500;text-decoration:none;color:var(--ink)}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.ghost{background:transparent}
.btn.danger{color:var(--disputed);border-color:var(--disputed)}
.btn.sm{padding:5px 12px;font-size:13px}
.btn.big{padding:11px 18px;font-size:16px;width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}
.icon-btn{border:0;background:transparent;cursor:pointer;padding:8px;border-radius:8px;display:inline-flex;color:var(--ink)}
.icon-btn:hover{background:var(--sunken)}
.icon-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.seg{display:inline-flex;background:var(--sunken);border:1px solid var(--line);border-radius:999px;padding:2px}
.seg button{border:0;background:transparent;border-radius:999px;padding:2px 10px;font-size:12px;font-weight:500;color:var(--muted);cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.label{font-weight:700;font-size:14px;letter-spacing:.04em}
.label-row{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline}

/* avatar: hue per teacher, works in both themes */
.av{width:28px;height:28px;border-radius:9px;background:hsl(var(--h,220) var(--av-s) var(--av-l1));color:hsl(var(--h,220) 60% var(--av-l2));display:inline-grid;place-items:center;font-family:var(--font-display);font-weight:700;font-size:16px;flex:none;line-height:1}
.av.sm{width:22px;height:22px;font-size:13px;border-radius:7px}
.av.lg{width:56px;height:56px;font-size:30px;border-radius:16px}
.av.xl{width:64px;height:64px;font-size:34px;border-radius:18px}
.avs{display:inline-flex}
.avs .av{margin-left:-6px;box-shadow:0 0 0 2px var(--surface)}
.avs .av:first-child{margin-left:0}

/* join */
.join{height:100%;overflow:auto;display:grid;place-items:center;padding-block:24px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.join-card{width:min(420px,100%);background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px 24px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow)}
.join-card h1{font-size:28px}
.join-mark,.brand-mark{display:inline-grid;place-items:center;background:var(--accent);color:var(--accent-ink);font-family:var(--font-mono);font-weight:500}
.join-mark{width:52px;height:52px;border-radius:15px;font-size:26px}
.join-lang{align-self:center}
.join-new{display:flex;flex-direction:column;gap:10px}
.join-new[hidden]{display:none}

/* shell */
.app{height:100%;display:grid;grid-template-columns:268px minmax(0,1fr)}
.side{background:var(--side);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:10px;min-height:0;padding-block:16px 12px;padding-left:max(14px,env(safe-area-inset-left,0px));padding-right:12px}
.brand{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 4px}
.brand-link{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font-family:var(--font-display);font-weight:700;font-size:20px}
.brand-mark{width:28px;height:28px;border-radius:8px;font-size:15px}
.new-chat{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:8px 12px;font-weight:500;text-decoration:none;color:var(--ink)}
.new-chat:hover{border-color:var(--muted)}
.nav{display:flex;flex-direction:column;gap:1px}
.nav a{display:flex;align-items:center;justify-content:space-between;gap:8px;border-radius:8px;padding:6px 10px;text-decoration:none;color:var(--ink)}
.nav a:hover{background:var(--sunken)}
.nav a[aria-current="page"]{background:var(--sunken);font-weight:700}
.badge{font-family:var(--font-mono);font-size:11px;background:var(--accent);color:var(--accent-ink);border-radius:999px;padding:0 7px;line-height:18px}
.hist-label{font-size:12px;letter-spacing:.08em;color:var(--muted);padding:4px 10px 0}
.hist{flex:1;min-height:0;overflow:auto;display:flex;flex-direction:column;gap:1px}
.hist a{display:block;border-radius:8px;padding:6px 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px;text-decoration:none;color:var(--ink)}
.hist a:hover,.hist a[aria-current="true"]{background:var(--sunken)}
.hist a small{color:var(--muted);margin-right:6px}
.hist .empty-h{color:var(--muted);font-size:13px;padding:6px 10px}
.side-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13px;color:var(--muted);padding:8px 6px 0;border-top:1px solid var(--line)}
.side-foot a{color:var(--ink);text-decoration:none;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.main{display:flex;flex-direction:column;min-height:0;min-width:0}
.topbar{display:none;align-items:center;justify-content:space-between;gap:8px;border-bottom:1px solid var(--line);padding-block:6px;padding-left:max(8px,env(safe-area-inset-left,0px));padding-right:max(8px,env(safe-area-inset-right,0px))}
.topbar b{font-family:var(--font-display);font-size:18px}
.scrim{display:none}
.view{flex:1;min-height:0;overflow:auto}
@media (max-width:860px){
  .app{grid-template-columns:minmax(0,1fr)}
  .side{position:fixed;top:0;bottom:0;left:0;width:min(300px,86vw);z-index:30;transform:translateX(-102%);transition:transform .2s ease;padding-top:calc(16px + env(safe-area-inset-top,0px));padding-bottom:calc(12px + env(safe-area-inset-bottom,0px));box-shadow:var(--shadow)}
  .side.open{transform:none}
  .scrim{position:fixed;inset:0;background:var(--scrim);z-index:25}
  .scrim.show{display:block}
  .topbar{display:flex}
}

/* chat */
.view.chat{display:flex;flex-direction:column;overflow:hidden}
.tbar{flex:none;display:flex;gap:8px;align-items:center;overflow-x:auto;padding-block:10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));border-bottom:1px solid var(--line);scrollbar-width:none}
.tbar::-webkit-scrollbar{display:none}
.tchip{flex:none;display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:4px 12px 4px 4px;cursor:pointer;font-size:14px;font-weight:500;white-space:nowrap}
.tchip[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.tchip .st{font-size:11px;color:var(--muted);font-weight:400}
.tchip.rt{padding:5px 12px;color:var(--muted)}
.tchip.rt[aria-pressed="true"]{color:var(--accent)}
.tbar .sep{flex:none;width:1px;height:22px;background:var(--line)}
.chathead{flex:none;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-block:8px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));border-bottom:1px solid var(--line)}
.chathead .t{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.banner{background:var(--accent-soft);color:var(--accent);border-radius:10px;padding:5px 12px;font-size:13px}
.thread{flex:1;min-height:0;overflow:auto;padding-block:24px 12px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.thread-inner{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:24px}
.hello{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;padding-top:6vh}
.hello h2{font-size:30px}
.hello p{max-width:48ch}
.sugs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%;max-width:640px;margin-top:8px}
@media (max-width:560px){.sugs{grid-template-columns:1fr}}
.sug{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:10px 14px;text-align:left;cursor:pointer;font-size:14px;line-height:1.5}
.sug:hover{border-color:var(--accent)}
.msg{min-width:0;overflow-wrap:anywhere}
.msg.user{align-self:flex-end;display:flex;flex-direction:column;align-items:flex-end;gap:6px;max-width:85%}
.msg.user .bubble{background:var(--sunken);border-radius:18px 18px 4px 18px;padding:10px 16px;white-space:pre-wrap}
.msg.user img{width:96px;height:96px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}
.linkbtn{border:0;background:transparent;color:var(--accent);cursor:pointer;font-size:13px;padding:2px 4px;border-radius:6px}
.linkbtn:hover{background:var(--accent-soft)}
.msg.ai{display:flex;flex-direction:column;gap:8px}
.round{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.round .msg.ai{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.who{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.body{display:flex;flex-direction:column;gap:8px}
.body ul,.body ol{margin:0;padding-left:1.3em;display:flex;flex-direction:column;gap:4px}
.body h4{margin:4px 0 0;font-size:15px}
.body a.tk{font-family:var(--font-mono);font-weight:500;text-decoration:none;border-bottom:1px dashed currentColor}
.thinking{color:var(--muted)}
.thinking::after{content:"";display:inline-block;width:1.4em;text-align:left;animation:dots 1.2s steps(4,end) infinite}
@keyframes dots{0%{content:""}25%{content:"."}50%{content:".."}75%{content:"..."}}
.rid{font-family:var(--font-mono);font-size:12px;font-weight:500;background:var(--accent-soft);color:var(--accent);border-radius:5px;padding:1px 5px;white-space:nowrap}
.body .rid{cursor:pointer}
.composer-wrap{flex:none;padding-block:4px 10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-bottom:max(10px,env(safe-area-inset-bottom,0px))}
.composer{max-width:780px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:10px 10px 8px 12px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow)}
.composer:focus-within{border-color:var(--muted)}
.composer textarea{border:0;background:transparent;resize:none;padding:4px 2px;max-height:200px;outline:none}
.composer .row{display:flex;align-items:center;justify-content:space-between;gap:8px}
.composer .left{display:flex;align-items:center;gap:6px;flex-wrap:wrap;min-width:0}
.tk-chips{display:flex;flex-wrap:wrap;gap:6px}
.tk-chips a{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:2px 10px;text-decoration:none;color:var(--accent);background:var(--accent-soft)}
.thumbs{display:flex;gap:8px}
.thumb{position:relative}
.thumb img{width:56px;height:56px;object-fit:cover;border-radius:10px;border:1px solid var(--line);display:block}
.thumb button{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;border:0;background:var(--ink);color:var(--bg);font-size:12px;line-height:20px;cursor:pointer;padding:0}
.toggle{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:transparent;border-radius:999px;padding:3px 10px;font-size:12px;cursor:pointer;color:var(--muted)}
.toggle[aria-pressed="true"]{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.send{width:36px;height:36px;border-radius:12px;border:0;background:var(--accent);color:var(--accent-ink);cursor:pointer;display:grid;place-items:center;flex:none}
.send:disabled{opacity:.35;cursor:not-allowed}
.send svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.send.stop svg{fill:currentColor;stroke:none}
.disclaimer{max-width:780px;margin:6px auto 0;text-align:center;font-size:12px;color:var(--muted)}
.pop{position:fixed;z-index:50;width:min(340px,calc(100vw - 32px));background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:12px 14px;display:flex;flex-direction:column;gap:6px;font-size:14px}
.pop .ph{display:flex;align-items:center;gap:8px;flex-wrap:wrap}

/* pages */
.page{max-width:960px;margin:0 auto;display:flex;flex-direction:column;gap:22px;padding-block:28px 72px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.page-head{display:flex;flex-direction:column;gap:6px}
.page-head h2{font-size:28px}
.page-head p{max-width:64ch}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:16px;min-width:0}
.sec{display:flex;flex-direction:column;gap:12px;min-width:0}
.sec-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px}
.sec-head h3{font-size:20px}
.empty{border:1px dashed var(--line);border-radius:14px;padding:22px 20px;text-align:center;color:var(--muted)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.rowedit{display:flex;flex-wrap:wrap;gap:10px 12px;align-items:flex-end;padding:6px 0}
.rowedit .field{flex:1 1 120px}
.rowedit .field.wide{flex-basis:100%}
.rowedit .actions{flex-basis:100%}
.rules li.editing,.tline li.editing{display:block}
.edit-btn{font-size:12px;color:var(--muted);background:none;border:0;padding:2px 4px;cursor:pointer;white-space:nowrap}
.edit-btn:hover{color:var(--ink);text-decoration:underline}
@media (max-width:640px){.grid2{grid-template-columns:1fr}}
.pill{display:inline-block;font-size:12px;font-weight:500;border-radius:999px;padding:1px 9px;white-space:nowrap;letter-spacing:.02em}
.c-solid,.s-imported,.f-merged,.st-bull{background:var(--solid-soft);color:var(--solid)}
.c-single,.s-public,.f-pending,.st-watch{background:var(--single-soft);color:var(--single)}
.c-disputed,.f-rejected,.st-bear{background:var(--disputed-soft);color:var(--disputed)}
.s-empty,.p-stale,.st-neutral{background:var(--sunken);color:var(--muted)}
.pos{color:var(--solid)} .neg{color:var(--disputed)}
.notice{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:10px 14px;color:var(--muted);font-size:14px}

/* stocks */
.search{position:relative}
.search input{font-size:17px;padding:12px 16px;border-radius:14px;background:var(--surface)}
.suggest{position:absolute;left:0;right:0;top:calc(100% + 6px);background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;z-index:10;display:flex;flex-direction:column;max-height:60vh;overflow:auto}
.suggest a{display:flex;align-items:baseline;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:8px;text-decoration:none;color:var(--ink)}
.suggest a:hover,.suggest a.on{background:var(--sunken)}
.tkr{font-family:var(--font-mono);font-weight:500}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--ink);min-width:0}
a.card:hover{border-color:var(--muted)}
.card .top{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.card .tkr{font-size:18px}
.stances{display:flex;flex-wrap:wrap;gap:6px}
.stance{display:inline-flex;align-items:center;gap:5px}
.stock-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px}
.stock-head .tkr{font-size:36px;line-height:1}
.px{font-family:var(--font-mono);font-size:22px;font-variant-numeric:tabular-nums}
.tline{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.tline li{display:grid;grid-template-columns:96px auto 1fr;gap:10px;align-items:baseline;padding:9px 0;border-bottom:1px dashed var(--line)}
.tline li:last-child{border-bottom:0}
.tline .d{font-family:var(--font-mono);font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.tline .x{min-width:0}
@media (max-width:560px){.tline li{grid-template-columns:auto 1fr}.tline .d{grid-column:1/-1}}
.tcard{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px}
.tcard header{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.tcard header .who{font-size:15px;color:var(--ink);font-weight:500}

/* feed wizard */
.stepper{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.stepper .s{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:14px}
.stepper .n{width:24px;height:24px;border-radius:50%;display:inline-grid;place-items:center;border:1px solid var(--line);font-family:var(--font-mono);font-size:12px}
.stepper .s.on{color:var(--ink);font-weight:700}
.stepper .s.on .n{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.stepper .s.done .n{background:var(--solid-soft);border-color:var(--solid-soft);color:var(--solid)}
.stepper .bar{width:28px;height:1px;background:var(--line)}
.tgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px}
.tpick{display:flex;flex-direction:column;align-items:flex-start;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:14px;cursor:pointer;text-align:left}
.tpick:hover{border-color:var(--accent)}
.tpick b{font-weight:500}
.tpick.add{border-style:dashed;color:var(--accent);justify-content:center;align-items:center;min-height:110px}
.emojis{display:flex;flex-wrap:wrap;gap:6px}
.emojis button{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--bg);font-size:20px;cursor:pointer}
.emojis button[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft)}
.chosen{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.drop{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;border:1.5px dashed var(--line);border-radius:12px;padding:18px;text-align:center;cursor:pointer;color:var(--muted);min-height:124px}
.drop.over{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.drop input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.drop b{color:var(--ink);font-weight:500}
.author-list{display:flex;flex-wrap:wrap;gap:6px 14px;max-height:220px;overflow:auto;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.author-list label{display:inline-flex;gap:6px;align-items:center;font-size:14px}
.author-list .n{font-family:var(--font-mono);font-size:12px;color:var(--muted)}
details summary{cursor:pointer;color:var(--muted);font-size:14px}
.progress{display:flex;flex-direction:column;gap:6px}
.bar{height:8px;border-radius:4px;background:var(--sunken);overflow:hidden}
.bar span{display:block;height:100%;width:0;background:var(--accent);transition:width .3s}
.checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.checks label{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:baseline;padding:7px 4px;border-bottom:1px dashed var(--line);cursor:pointer}
.checks li:last-child label{border-bottom:0}
.checks input{transform:translateY(2px)}
.done-box{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:16px}
.done-box .big{font-size:40px}
.feeds{display:flex;flex-direction:column;gap:10px}
.feed{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:8px;min-width:0}
.feed header{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap}
.feed .meta{font-size:13px;color:var(--muted)}
.feed details ul{margin:8px 0 0;padding-left:1.2em;display:flex;flex-direction:column;gap:3px;font-size:14px}
.feed pre{white-space:pre-wrap;font-family:var(--font-body);font-size:13px;background:var(--bg);border-radius:8px;padding:10px;max-height:240px;overflow:auto;margin:8px 0 0}

/* teacher profile */
.kol-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;align-items:flex-start}
.kol-head .id{display:flex;gap:14px;align-items:flex-start;min-width:0;max-width:66ch}
.kol-head .id > div{display:flex;flex-direction:column;gap:6px;min-width:0}
.kol-head h2{font-size:28px}
.src{font-size:13px;color:var(--muted)}
.caveats{border-left:3px solid var(--single);background:var(--surface);border-radius:0 12px 12px 0;padding:14px 18px;display:flex;flex-direction:column;gap:8px}
.caveats h3{font-size:18px}
.caveats ul{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:4px}
.modes{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.mode{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:8px;min-width:0}
.mode p{font-size:14px}
.tally{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.wbar{height:6px;border-radius:3px;background:var(--disputed-soft);overflow:hidden}
.wbar span{display:block;height:100%;background:var(--solid)}
.wbar.none{background:var(--sunken)}
.column{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.layer{display:grid;grid-template-columns:170px 1fr;border-top:1px solid var(--line)}
.layer:first-child{border-top:0}
.layer-label{background:var(--sunken);padding:14px 16px;display:flex;flex-direction:column;gap:2px}
.layer-label .lc{font-family:var(--font-mono);font-size:12px;color:var(--accent)}
.layer-label b{font-family:var(--font-display);font-size:18px}
.layer-label small{color:var(--muted);font-size:12px;line-height:1.5}
.rules{list-style:none;margin:0;padding:10px 16px;display:flex;flex-direction:column;min-width:0}
.rules li{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:baseline;padding:8px 0;border-bottom:1px dashed var(--line)}
.rules li:last-child{border-bottom:0}
.rules li > div{min-width:0}
.rules .pills{display:flex;flex-direction:column;gap:4px;align-items:flex-end}
.rules .basis{font-size:13px;color:var(--muted)}
.rules li.none{display:block;color:var(--muted);font-size:14px}
@media (max-width:640px){
  .layer{grid-template-columns:1fr}
  .layer-label{flex-direction:row;flex-wrap:wrap;align-items:baseline;gap:4px 10px}
  .rules li{grid-template-columns:auto 1fr}
  .rules .pills{grid-column:2;flex-direction:row;align-items:center}
}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:4px 12px;text-decoration:none;color:var(--ink);font-size:14px}
.chip:hover{border-color:var(--muted)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
table.grid{border-collapse:collapse;width:100%;font-size:14px}
table.wide{min-width:880px}
.grid th,.grid td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.grid th{font-size:12px;letter-spacing:.06em;color:var(--muted);font-weight:500;background:var(--sunken);white-space:nowrap}
.grid tr:last-child td{border-bottom:0}
.grid .num{font-variant-numeric:tabular-nums;white-space:nowrap}
.grid .srcnote{display:block;font-size:12px;color:var(--muted)}
.grid input[type=number]{width:92px;padding:4px 8px;border-radius:8px;font-size:13px;font-variant-numeric:tabular-nums}
.grid tr.kolrow td{background:var(--sunken);font-weight:700}
.wr{display:flex;align-items:center;gap:8px}
.wr .wbar{width:80px;flex:none}

/* admin */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);overflow-x:auto}
.tabs a{padding:8px 14px;text-decoration:none;color:var(--muted);border-bottom:2px solid transparent;white-space:nowrap;font-weight:500}
.tabs a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--accent)}
.trow{display:flex;flex-direction:column;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px}
.trow > header{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.trow > header .who{font-size:16px;color:var(--ink);font-weight:500}
.versions{display:flex;flex-direction:column;gap:6px}
.ver{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:14px}
.setting-row{display:grid;grid-template-columns:200px 1fr;gap:12px;align-items:center}
@media (max-width:640px){.setting-row{grid-template-columns:1fr}}
.switch-row{display:flex;align-items:center;gap:10px}
.toast{position:fixed;left:50%;transform:translateX(-50%);top:calc(14px + env(safe-area-inset-top,0px));background:var(--ink);color:var(--bg);padding:9px 16px;border-radius:10px;font-size:14px;max-width:calc(100% - 32px);z-index:60}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}