/* ESSA EDUsys portal design (see ESSA_EDUsys_포털디자인_Claude구현명세.md): white frame on pale lavender, near-black text, deep-purple primary buttons, lavender selection.
   Tokens are fixed by the spec - do not change values here without changing the spec. Used by login / portal / Task Card pages. */
:root{
  --outer:#F0ECFA;--frame:#FFFFFF;--section:#FAFAFC;--card:#FFFFFF;--tx:#25242B;--mut:#686572;--line:#EAE8EF;
  --pri:#26203F;--pri-h:#362D56;--sel:#6550AF;--sel-bg:#EEE8FA;--bar:#B8A8E8;--track:#F0EDF7;
  --ok:#24704A;--ok-bg:#EAF5EE;--warn:#805B20;--warn-bg:#FBF2E2;--bad:#AA3434;--bad-bg:#FBEDED;
  /* aliases used by older screens (Task Card, tables, dialogs) */
  --bg:var(--outer);--panel:var(--card);--panel2:var(--section);--acc:var(--sel);--acc-dark:var(--sel);--acc-soft:var(--sel-bg);--r:14px}
*{box-sizing:border-box}html,body{margin:0;min-height:100%}
body{background:var(--outer);color:var(--tx);font:14px/1.6 "Pretendard","Segoe UI","Malgun Gothic",system-ui,sans-serif;letter-spacing:-.2px;padding:20px;font-variant-numeric:tabular-nums}
a{color:var(--sel)}
:focus-visible{outline:2px solid var(--sel);outline-offset:3px}
button,input,select,textarea{font:inherit;color:var(--tx);letter-spacing:inherit}
button{background:var(--card);border:1px solid var(--line);border-radius:9px;min-height:36px;padding:0 16px;cursor:pointer;transition:background .15s,border-color .15s}
button:hover:not(:disabled){background:var(--section);border-color:#d8d4e4}
button.pri{background:var(--pri);color:#fff;border-color:var(--pri);font-weight:600;min-height:40px}button.pri:hover:not(:disabled){background:var(--pri-h)}
button.sm{min-height:30px;padding:0 12px;font-size:13px}
button:disabled{opacity:.5;cursor:default}
input,select,textarea{background:var(--card);border:1px solid var(--line);border-radius:9px;min-height:36px;padding:6px 11px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--sel)}
input[type=checkbox]{accent-color:var(--sel);width:16px;height:16px;min-height:0;padding:0}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* frame */
.shell{max-width:1440px;margin:0 auto;background:var(--frame);border:1px solid var(--line);border-radius:24px;overflow:hidden;min-height:calc(100vh - 40px)}
header.top{display:flex;align-items:center;gap:16px;height:64px;padding:0 32px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;cursor:pointer;margin:0;font-size:17px;line-height:1}.brand svg{width:28px;height:28px;flex:none}
.bt{font-weight:500;color:var(--mut)}.bt b{font-weight:700;color:var(--tx);letter-spacing:.8px}
.userbox{margin-left:auto;display:flex;gap:12px;align-items:center;font-size:13px}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--sel-bg);color:var(--sel);display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}
.who{line-height:1.3}.who b{display:block;font-size:13.5px;font-weight:600}.who small{color:var(--mut);font-size:12px}
nav.main{display:flex;gap:4px;align-items:center;height:52px;padding:0 24px;border-bottom:1px solid var(--line);overflow-x:auto;white-space:nowrap}
nav.main button{display:flex;align-items:center;gap:8px;border:0;background:none;min-height:36px;padding:0 14px;color:var(--mut);font-weight:500}
nav.main button svg{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
nav.main button:hover:not(:disabled){background:var(--section)}nav.main button.on{background:var(--sel-bg);color:var(--sel);font-weight:600}
.sub{display:flex;gap:4px;height:44px;padding:0 32px;border-bottom:1px solid var(--line);overflow-x:auto;white-space:nowrap;align-items:stretch}
.sub button{border:0;border-bottom:2px solid transparent;border-radius:0;background:none;min-height:0;padding:0 14px;color:var(--mut);font-size:13.5px}.sub button:hover:not(:disabled){background:none;color:var(--tx)}.sub button.on{color:var(--sel);border-bottom-color:var(--sel);font-weight:600}
.crumb{padding:16px 32px 0;color:var(--mut);font-size:12px}
main{padding:8px 32px 48px}
.page-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:8px 0 20px;flex-wrap:wrap}.page-title h2{font-size:28px;line-height:1.3;margin:0;font-weight:700}.page-title p{margin:4px 0 0;color:var(--mut)}

/* cards, tables, badges */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;margin:16px 0}.card:hover{box-shadow:0 4px 16px rgba(38,32,63,.06)}.card h2,.card h3{margin:0 0 16px;font-size:16px;font-weight:600}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}.grid>.card{margin:0}.grid>div>.card:first-child{margin-top:0}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);background:var(--section);border:1px solid var(--line);border-radius:14px}
.kpi{padding:20px 24px;border-right:1px solid var(--line)}.kpi:last-child{border-right:0}.kpi small{display:block;color:var(--mut);font-size:12px;line-height:1.5}.kpi .big{font-size:26px;font-weight:650;line-height:1.3;margin:4px 0 0;font-variant-numeric:tabular-nums}.kpi .big.txt{font-size:18px;font-weight:600;color:var(--mut);padding:5px 0}.kpi .sm{font-size:12px;color:var(--mut)}
.kicker{display:block;font-size:12px;color:var(--sel);font-weight:600;margin-bottom:4px}
.cont{border-top:3px solid var(--bar)}.cont h2{font-size:12px;color:var(--mut);margin-bottom:12px;font-weight:600}.cont .name{font-size:22px;font-weight:650;line-height:1.35;margin:0 0 4px}.cont .meta{color:var(--mut);margin:0 0 20px}
.crow{display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}.crow:first-of-type{border-top:0;padding-top:0}
.ata{width:48px;height:48px;border-radius:12px;background:var(--sel-bg);color:var(--sel);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.crow .t{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:6px}.crow .t b{font-weight:600}.crow .sub2{display:flex;justify-content:space-between;color:var(--mut);font-size:12px;margin-top:4px}
.prog{height:6px;background:var(--track);border-radius:3px;overflow:hidden}.prog i{display:block;height:100%;background:var(--bar);border-radius:3px}
.tag{display:inline-block;border-radius:6px;padding:0 8px;font-size:12px;line-height:20px;background:var(--section);color:var(--mut);border:1px solid var(--line);vertical-align:middle}
.tag.ok{background:var(--ok-bg);border-color:#d6ecde;color:var(--ok)}.tag.warn,.tag.rv{background:var(--warn-bg);border-color:#f1e1c3;color:var(--warn)}.tag.bad{background:var(--bad-bg);border-color:#f2d0d0;color:var(--bad)}.tag.mut{color:var(--mut)}
.empty{color:var(--mut);padding:4px 0;margin:0}
.state{display:flex;flex-direction:column;gap:12px;align-items:flex-start}.state p{margin:0;color:var(--mut)}
table{border-collapse:collapse;width:100%}th,td{border-bottom:1px solid var(--line);padding:12px;text-align:left;vertical-align:top;font-size:13px}th{font-size:12px;color:var(--mut);font-weight:600;background:var(--section)}tbody tr:last-child td{border-bottom:0}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}.tablewrap table td,.tablewrap table th{min-height:48px}
.tree ul{list-style:none;margin:4px 0 4px 18px;padding:0}.tree li{margin:4px 0}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:8px 0}
.msg{margin:12px 0;padding:10px 14px;border-radius:9px;background:var(--section);border:1px solid var(--line)}.msg.err{background:var(--bad-bg);border-color:#f2d0d0;color:var(--bad)}.msg.ok{background:var(--ok-bg);border-color:#d6ecde;color:var(--ok)}
.skel{background:linear-gradient(90deg,var(--track),var(--section),var(--track));border-radius:9px;height:18px;margin:10px 0}

/* 기종교육 탐색 / 챕터 상세 */
.explore{display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:start}
.pick{margin:0;padding:16px}.pick h3{margin-bottom:8px;font-size:12px;color:var(--mut)}.pickitem{display:block;width:100%;text-align:left;border:0;background:none;padding:0 12px;min-height:40px;color:var(--tx)}.pickitem.on{background:var(--sel-bg);color:var(--sel);font-weight:600}
.atalist{display:flex;flex-direction:column;gap:12px;margin:12px 0}
.atacard{display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:16px 20px;background:var(--card)}.atacard.off{background:var(--section)}.atacard .t{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.atacard p{margin:4px 0 0}
.lrow{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}.lrow:first-of-type{border-top:0;padding-top:0}
.field{margin:0 0 16px}.field label{display:block;font-size:13px;color:var(--mut);margin-bottom:4px}.field input,.field select{width:100%}
.formgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 16px}

/* login: two columns, collapses to one on small screens */
body.loginbody{display:flex;align-items:center;justify-content:center;min-height:100vh}
.lg{width:min(960px,100%);display:grid;grid-template-columns:52fr 48fr;background:var(--frame);border:1px solid var(--line);border-radius:24px;overflow:hidden;padding:0;margin:0}
.lg-intro{padding:48px 40px;background:var(--section);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:24px}.lg-intro .brand{cursor:default;font-size:20px}.lg-intro .brand svg{width:36px;height:36px}
.lg-intro h1{font-size:28px;line-height:1.35;margin:8px 0 0;font-weight:700}
.lg-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}.lg-list li{display:flex;flex-direction:column}.lg-list b{font-size:14px}.lg-list span{color:var(--mut);font-size:13px}
.lg-art{width:100%;max-width:320px;margin-top:auto}
.lg-form{padding:48px 40px;display:flex;align-items:center}.lg-form form{width:100%}.lg-form h2{font-size:22px;margin:0 0 16px}.lg-form label{display:block;margin:16px 0 4px;font-size:13px;color:var(--mut)}.lg-form input{width:100%}.lg-form .pri{width:100%;margin-top:24px;font-size:15px}.lg-form .hint{font-size:12px;color:var(--mut);margin:16px 0 0}
@media (max-width:1199px){body{padding:12px}main{padding:8px 24px 40px}header.top{padding:0 24px}.sub,.crumb{padding-left:24px;padding-right:24px}.kpis{grid-template-columns:repeat(2,1fr)}.kpi:nth-child(2){border-right:0}.kpi:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media (max-width:900px){.grid{grid-template-columns:1fr}}
@media (max-width:767px){body{padding:0}.shell{border-radius:0;border-left:0;border-right:0}header.top{padding:0 16px}main{padding:8px 16px 32px}.sub,.crumb{padding-left:16px;padding-right:16px}nav.main{padding:0 8px}button,nav.main button,.sub button{min-height:44px}.who{display:none}.page-title h2{font-size:24px}.kpis{grid-template-columns:1fr 1fr}.card{padding:16px}table{min-width:520px}}
@media (max-width:1199px){.explore{grid-template-columns:1fr}.pick{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.pick h3{margin:0 8px 0 0}.pickitem{width:auto}}
@media (max-width:767px){body.loginbody{display:block;padding:0}.lg{grid-template-columns:1fr;border-radius:0;border:0;min-height:100vh}.lg-intro{padding:20px 16px;gap:8px;border-right:0;border-bottom:1px solid var(--line)}.lg-intro h1{font-size:20px;margin:0}.lg-list,.lg-art{display:none}.lg-form{padding:24px 16px}.atacard{grid-template-columns:48px 1fr}.atacard>button{grid-column:1 / -1}.lrow{flex-direction:column;align-items:flex-start}}