/* ==========================================================================
   gna-biz.study 운영 콘솔 — business admin theme (navy sidebar)
   Layout: full-height navy sidebar + white topbar + 100%-width content.
   ========================================================================== */
:root{
  --navy:#16243a; --navy-2:#1d3148; --navy-line:#2a3d57;
  --brand:#1f5fb0; --brand-d:#16447e;
  --bg:#f4f6f8; --panel:#fff; --ink:#1d2733; --muted:#67727e; --line:#e1e6eb;
  --ok:#197a3e; --okbg:#e7f4ec; --info:#2f6fb0; --infobg:#e8f0fa;
  --warn:#9a6406; --warnbg:#fbf0dc; --amb:#7a5300; --ambbg:#f7ecd4;
  --block:#b3261e; --blockbg:#fdeceb; --pend:#5b6675; --pendbg:#eceff3;
  --shadow:0 1px 3px rgba(16,33,58,.08),0 1px 2px rgba(16,33,58,.06);
  --radius:10px;
}
*{box-sizing:border-box}
html,body{height:100%;overflow-x:clip}   /* 모바일 가로 오버플로 가드(clip은 sticky 안 깨짐) */
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",system-ui,sans-serif;
  font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-wrap:break-word}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* ---- shell ------------------------------------------------------------- */
body.app{display:flex;min-height:100vh}

/* ---- sidebar (navy, full height) -------------------------------------- */
.sidebar{width:236px;flex:0 0 236px;background:var(--navy);color:#c4cedd;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sidebar-brand{display:flex;align-items:center;gap:.6rem;padding:1.1rem 1.1rem;
  border-bottom:1px solid var(--navy-line)}
.sidebar-brand .logo{width:34px;height:34px;border-radius:9px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;
  font-weight:800;font-size:1.1rem;display:flex;align-items:center;justify-content:center}
.sidebar-brand .brand-text{font-weight:700;color:#fff;font-size:1.02rem;line-height:1.15;display:flex;flex-direction:column}
.sidebar-brand .brand-text small{font-weight:400;color:#8b9bb3;font-size:.7rem;margin-top:1px}
.sidebar-nav{padding:.7rem .6rem;display:flex;flex-direction:column;gap:2px;flex:1}
.nav-item{display:flex;align-items:center;gap:.7rem;padding:.62rem .75rem;border-radius:8px;
  color:#aeb9c7;font-weight:500;border-left:3px solid transparent}
.nav-item:hover{background:var(--navy-2);color:#fff;text-decoration:none}
.nav-item.active{background:var(--navy-2);color:#fff;border-left-color:var(--brand)}
.nav-item svg{width:18px;height:18px;fill:currentColor;opacity:.9;flex:0 0 18px}
.sidebar-foot{padding:.8rem 1.1rem;border-top:1px solid var(--navy-line);color:#6f7f97;font-size:.72rem}

/* ---- main column ------------------------------------------------------- */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:1rem;padding:0 1.4rem;height:58px;box-shadow:var(--shadow);flex-shrink:0}
.topbar .page-title{margin:0;font-size:1.15rem;font-weight:700}
.topbar .hamburger{display:none;background:none;border:0;cursor:pointer;padding:.3rem;color:var(--ink)}
.topbar .hamburger svg{width:24px;height:24px;fill:currentColor}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:1rem}
.topbar .who{color:var(--muted);font-size:.86rem}
.topbar .who strong{color:var(--ink)}
.logout-btn{padding:.4rem .8rem;border:1px solid var(--line);border-radius:7px;color:var(--ink);font-size:.84rem}
.logout-btn:hover{background:var(--bg);text-decoration:none;border-color:#cdd5de}

/* ---- topbar horizontal nav (student /me 포털; .nav-item 사이드바 스타일 덮어쓰기) */
.topbar-nav{display:flex;align-items:center;gap:.15rem;min-width:0}
.topbar-nav .nav-item{padding:.45rem .7rem;border-radius:7px;border-left:0;
  color:var(--muted);font-weight:600;font-size:.9rem;white-space:nowrap}
.topbar-nav .nav-item:hover{background:var(--bg);color:var(--ink);text-decoration:none}
.topbar-nav .nav-item.active{background:var(--infobg);color:var(--brand)}

/* ---- content (100% width, no max-width cap) --------------------------- */
.content{flex:1;width:100%;padding:1.4rem}

/* ---- KPI cards --------------------------------------------------------- */
.kpi-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:1rem;margin-bottom:1.2rem}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.1rem 1.2rem;box-shadow:var(--shadow);border-top:3px solid var(--brand)}
.kpi.accent{border-top-color:var(--ok)}
.kpi.warn{border-top-color:var(--warn)}
.kpi-n{font-size:1.9rem;font-weight:800;letter-spacing:-.5px;line-height:1}
.kpi-l{margin-top:.4rem;color:var(--muted);font-size:.82rem}

/* ---- panels ------------------------------------------------------------ */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.2rem 1.3rem;margin-bottom:1.2rem}
.panel-title{margin:0 0 .9rem;font-size:1.05rem;font-weight:700}
.panel-head{display:flex;align-items:center;gap:.6rem;margin-bottom:.9rem;flex-wrap:wrap}
.panel-head .panel-title{margin:0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.sub{margin:1.1rem 0 .5rem;font-size:.92rem;font-weight:700;color:#34465c}
.count{font-size:.82rem;font-weight:500;color:var(--muted);margin-left:.3rem}
.hint{color:var(--muted);font-size:.82rem;margin:.4rem 0 0}
.muted{color:#97a0ab}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.86em;overflow-wrap:anywhere}

/* ---- tables ------------------------------------------------------------ */
.table-wrap{overflow-x:auto}
table.data{width:100%;border-collapse:collapse;font-size:.88rem}
table.data th,table.data td{padding:.6rem .7rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.data thead th{background:#f7f9fb;color:#55606d;font-weight:600;font-size:.8rem;
  text-transform:none;border-bottom:1px solid var(--line);white-space:nowrap}
table.data td.num,table.data th.num{text-align:right;font-variant-numeric:tabular-nums}
table.data.hover tbody tr:hover{background:#f9fbfd}
table.data tr.total td{font-weight:700;border-top:2px solid var(--line)}
table.data.kv th{width:1%;white-space:nowrap;color:#55606d;background:#f7f9fb;font-weight:600}
.cohort-meta td{font-weight:500}

/* ---- badges ------------------------------------------------------------ */
.badge{display:inline-block;padding:.16rem .55rem;border-radius:999px;font-size:.74rem;font-weight:600;line-height:1.5;white-space:nowrap}
.b-ok{background:var(--okbg);color:var(--ok)}
.b-info{background:var(--infobg);color:var(--info)}
.b-pending{background:var(--pendbg);color:var(--pend)}
.b-warn{background:var(--warnbg);color:var(--warn)}
.b-amb{background:var(--ambbg);color:var(--amb)}
.b-block,.b-failed{background:var(--blockbg);color:var(--block)}
.b-muted{background:#eceff3;color:#8a93a0}
.err-wrap{max-width:340px;white-space:normal;font-weight:500;margin-top:.2rem}

/* ---- forms ------------------------------------------------------------- */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.9rem 1.1rem}
.form-grid label,.lf{display:flex;flex-direction:column;gap:.32rem;font-size:.82rem;color:#55606d;font-weight:600}
.form-grid .form-actions{grid-column:1/-1}
input[type=text],input[type=email],input[type=password],input[type=date],input[type=time],
input[type=number],input[type=search],input[type=tel],select,textarea{
  padding:.55rem .65rem;border:1px solid var(--line);border-radius:8px;font-size:.95rem;
  background:#fff;color:var(--ink);width:100%;font-family:inherit;line-height:1.35}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,95,176,.12)}
/* checkboxes/radios keep native sizing; lay them out inline with their label */
input[type=checkbox],input[type=radio]{width:auto;min-height:0;accent-color:var(--brand);cursor:pointer;margin:0}
.check-row{display:flex;flex-direction:row;align-items:center;gap:.5rem;font-weight:500;color:var(--ink);font-size:.9rem}
/* native date/time pickers: match text-input height + subtle picker icon */
input[type=date],input[type=time]{min-height:38px}
input[type=date]::-webkit-calendar-picker-indicator,
input[type=time]::-webkit-calendar-picker-indicator{opacity:.5;cursor:pointer}
.btn{display:inline-block;padding:.55rem .95rem;border:1px solid var(--line);border-radius:8px;
  background:#fff;color:var(--ink);font-size:.88rem;font-weight:600;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--bg)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-d);border-color:var(--brand-d)}
.btn.danger{background:#fff;border-color:#e7b4b0;color:var(--block)}
.btn.danger:hover{background:var(--blockbg)}
.btn.ghost{background:#fff;border-color:var(--line);color:#34465c}
.btn.sm{padding:.32rem .7rem;font-size:.8rem}
.btn.block{width:100%;display:block}
form.inline{display:inline}

/* ---- flash ------------------------------------------------------------- */
.flash{padding:.7rem 1rem;border-radius:8px;margin-bottom:1rem;font-size:.88rem;border:1px solid}
.flash-ok{background:var(--okbg);border-color:#bfe3cc;color:var(--ok)}
.flash-err{background:var(--blockbg);border-color:#f3c5c1;color:var(--block)}
.flash-info{background:var(--infobg);border-color:#cfe0f3;color:var(--info)}

/* ---- off-canvas scrim (mobile) ---------------------------------------- */
.scrim{display:none;position:fixed;inset:0;background:rgba(16,33,58,.45);z-index:25}
.scrim.show{display:block}

/* ==========================================================================
   Login (blank layout) — split-screen brand left / form right
   ========================================================================== */
body.auth-body{background:var(--bg)}
.login-wrap{display:flex;min-height:100vh}
.brandside{flex:1 1 46%;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-d) 100%);
  color:#fff;display:flex;flex-direction:column;justify-content:center;padding:3.5rem 3rem;position:relative}
.brandside .badge-pill{display:inline-block;align-self:flex-start;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:.25rem .8rem;font-size:.78rem;letter-spacing:.4px;margin-bottom:1.6rem}
.brand-h{margin:0;font-size:2.3rem;font-weight:800;letter-spacing:.3px}
.brand-tag{margin-top:.7rem;font-size:1.05rem;opacity:.92;font-weight:500}
.brand-desc{margin-top:1.8rem;font-size:.92rem;opacity:.82;max-width:30rem;line-height:1.7}
.brand-foot{position:absolute;bottom:1.6rem;left:3rem;font-size:.76rem;opacity:.6}
.formside{flex:1 1 54%;display:flex;align-items:center;justify-content:center;padding:2rem}
.login-card{width:100%;max-width:23rem}
.login-card h2{margin:0 0 .35rem;font-size:1.5rem;font-weight:700}
.login-card .sub{margin:0 0 1.8rem;color:var(--muted);font-size:.9rem;font-weight:400}
.login-card .lf{margin-bottom:1.1rem}
.login-err{background:var(--blockbg);border:1px solid #f3c5c1;color:var(--block);border-radius:8px;padding:.6rem .8rem;font-size:.86rem;margin-bottom:1.2rem}
.login-card .btn.block{padding:.75rem;font-size:1rem;margin-top:.3rem}
.login-mini{margin-top:1.4rem;font-size:.76rem;color:var(--muted);text-align:center}

/* ---- 로그인: 목록 선택(최초) / 검색 후보(이후) ------------------------ */
.login-empty{color:var(--muted);font-size:.9rem;line-height:1.65;padding:.5rem 0}
.pick-list{list-style:none;margin:.2rem 0 0;padding:0;display:flex;flex-direction:column;gap:.45rem;
  max-height:46vh;overflow:auto}
.pick-list>li{margin:0}
.pick-item{display:flex;flex-direction:column;align-items:flex-start;gap:.12rem;width:100%;
  padding:.6rem .85rem;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;
  text-align:left;font-family:inherit;transition:border-color .12s,background .12s}
.pick-item:hover,.pick-item:focus-visible{border-color:var(--brand);background:var(--infobg);outline:none}
.pick-name{font-weight:700;color:var(--ink);font-size:1rem}
.pick-meta{font-size:.8rem;color:var(--muted)}
.pick-list--radio .pick-radio{display:flex;align-items:center;gap:.55rem;width:100%;
  padding:.55rem .75rem;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.pick-list--radio .pick-radio:hover{border-color:var(--brand);background:var(--infobg)}
.pick-list--radio .pick-radio input{flex:0 0 auto;margin:0}
.pick-list--radio .pick-meta{margin-left:auto}

/* ---- login tabs (pure CSS, no JS) -------------------------------------- */
/* Single card, two panes. Default visible pane comes from the server-set
   modifier class (.login-card--default-enter | --default-id); clicking a tab
   navigates to #tab-enter/#tab-id and the :target pane wins. */
.login-tabs{display:flex;gap:.4rem;margin-bottom:1.6rem;border-bottom:1px solid var(--line)}
.login-tab-link{flex:1;text-align:center;padding:.7rem .5rem;font-size:.9rem;font-weight:600;
  color:var(--muted);text-decoration:none;border-bottom:2px solid transparent;margin-bottom:-1px}
.login-tab-link:hover{color:var(--ink)}

/* Panes hidden by default; one is revealed by the default modifier, and any
   :target pane overrides the default. */
.login-pane{display:none}
.login-card--default-enter .login-pane--enter{display:block}
.login-card--default-id .login-pane--id{display:block}
#tab-enter:target,#tab-id:target{display:block}
/* When a fragment targets the other pane, hide the server-default one. */
.login-card--default-enter:has(#tab-id:target) .login-pane--enter{display:none}
.login-card--default-id:has(#tab-enter:target) .login-pane--id{display:none}

/* Active tab underline mirrors the visible pane (server default first). */
.login-card--default-enter .login-tab-link--enter,
.login-card--default-id .login-tab-link--id{color:var(--brand);border-bottom-color:var(--brand)}
/* A :target fragment overrides the server default on both pane and tab. */
.login-card:has(#tab-enter:target) .login-tab-link--enter,
.login-card:has(#tab-id:target) .login-tab-link--id{color:var(--brand);border-bottom-color:var(--brand)}
.login-card--default-enter:has(#tab-id:target) .login-tab-link--enter,
.login-card--default-id:has(#tab-enter:target) .login-tab-link--id{color:var(--muted);border-bottom-color:transparent}

/* ---- responsive -------------------------------------------------------- */
@media (max-width:1100px){ .kpi-grid{grid-template-columns:repeat(3,1fr)} }
@media (max-width:900px){
  .sidebar{position:fixed;left:0;top:0;z-index:30;transform:translateX(-100%);transition:transform .2s ease}
  .sidebar.open{transform:translateX(0)}
  .topbar .hamburger{display:inline-flex}
  .grid-2{grid-template-columns:1fr}
}
@media (max-width:640px){
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:1fr}
  .login-wrap{flex-direction:column}
  .brandside{padding:2.4rem 1.8rem}
  .brand-foot{position:static;margin-top:1.4rem;left:auto}
  .brand-h{font-size:1.9rem}
}

/* ==========================================================================
   Calendar (월 일정) — month grid of class sessions
   ========================================================================== */
.cal-head{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}
.cal-nav{display:flex;align-items:center;gap:.5rem}
.cal-month{font-size:1.15rem;font-weight:700;min-width:7.5rem;text-align:center}
.cal-filter{margin-left:auto;display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.cal-filter label{display:flex;align-items:center;gap:.4rem;font-size:.85rem;color:var(--muted)}
.cal-filter select{padding:.4rem .55rem;border:1px solid var(--line);border-radius:7px;font-size:.88rem}
.cal-legend{display:flex;align-items:center;gap:.4rem}

.cal-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}
.cal-dow{background:#eef2f6;color:#55606d;font-weight:700;font-size:.8rem;text-align:center;padding:.5rem 0}
.cal-dow.cal-sun{color:#b3261e}
.cal-dow.cal-sat{color:#1f5fb0}
.cal-cell{background:var(--panel);min-height:96px;padding:.35rem .4rem;display:flex;flex-direction:column;gap:3px;position:relative}
.cal-cell.other{background:#fafbfc}
.cal-cell.cal-sun{background:#fdf6f6}
.cal-cell.cal-sat{background:#f5f9fd}
.cal-cell.other.cal-sun,.cal-cell.other.cal-sat{background:#fafbfc}
.cal-cell.today{box-shadow:inset 0 0 0 2px var(--brand)}
.cal-date{font-size:.78rem;font-weight:700;color:var(--ink);line-height:1}
.cal-cell.other .cal-date{color:#b6bec8}
.cal-cell.cal-sun .cal-date{color:#b3261e}
.cal-cell.cal-sat .cal-date{color:#1f5fb0}

.cal-ev{display:block;font-size:.72rem;line-height:1.45;padding:.1rem .35rem;border-radius:5px;color:#fff;
  text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cal-ev:hover{text-decoration:none;filter:brightness(1.06)}
.cal-ev .cal-ev-t{font-weight:700;opacity:.92;margin-right:2px}
.cal-ev.magok{background:var(--brand)}
.cal-ev.songdo{background:var(--ok)}
.cal-ev.cancelled{background:var(--pend);text-decoration:line-through;opacity:.85}
.cal-ev.held{box-shadow:inset 0 0 0 2px rgba(255,255,255,.5)}
.cal-legend .cal-ev{display:inline-block;cursor:default}

@media (max-width:760px){
  .cal-cell{min-height:62px;padding:.25rem .3rem}
  .cal-ev{font-size:.66rem}
  .cal-filter{margin-left:0;width:100%}
}

/* ===== 학생 학습 포털 추가 (flash·진도·반응형·작업공간) ===== */
.flash{padding:.7rem .9rem;border-radius:8px;margin-bottom:.8rem;font-size:.9rem;border:1px solid transparent}
.flash-ok{background:#e8f7ee;color:#176b3a;border-color:#bce8cd}
.flash-err{background:#fde8e8;color:#9b1c1c;border-color:#f5c2c2}
.flash-info{background:#e8f0fd;color:#1b4ba3;border-color:#c2d6f5}
.notice{padding:.7rem .9rem;border-radius:8px;margin-bottom:.9rem;background:#fff7e6;border:1px solid #ffe0a3;color:#8a5a00;font-size:.9rem}
.notice a{font-weight:700}
.progress{height:12px;background:#eef1f5;border-radius:99px;overflow:hidden;margin:.3rem 0}
.progress-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#22c55e);border-radius:99px;transition:width .3s}
.w-0{width:0%}.w-5{width:5%}.w-10{width:10%}.w-15{width:15%}.w-20{width:20%}.w-25{width:25%}.w-30{width:30%}.w-35{width:35%}.w-40{width:40%}.w-45{width:45%}.w-50{width:50%}.w-55{width:55%}.w-60{width:60%}.w-65{width:65%}.w-70{width:70%}.w-75{width:75%}.w-80{width:80%}.w-85{width:85%}.w-90{width:90%}.w-95{width:95%}.w-100{width:100%}
.cta-row{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center;margin:.4rem 0}
.btn.block{display:block;width:100%;text-align:center;padding:.8rem 1rem}
.ws-state{font-weight:700}
.mat-type{font-size:.72rem;font-weight:700;padding:.08rem .45rem;border-radius:99px}
.mat-type.prep{background:#e8f0fd;color:#1b4ba3}
.mat-type.review{background:#f3e8fd;color:#6b21a8}

/* 반응형: 표 -> 모바일 카드 (table.data.cards, data-label 기반) */
@media (max-width:640px){
  table.data.cards thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  table.data.cards,table.data.cards tbody,table.data.cards tr,table.data.cards td{display:block;width:100%}
  table.data.cards tr{background:#fff;border:1px solid #e5e9ef;border-radius:10px;margin-bottom:.7rem;padding:.3rem .2rem}
  table.data.cards td{border:0;border-bottom:1px solid #eef1f5;display:flex;justify-content:space-between;gap:1rem;padding:.5rem .7rem;text-align:right}
  table.data.cards td:last-child{border-bottom:0}
  table.data.cards td::before{content:attr(data-label);font-weight:600;color:#55606d;text-align:left}
  table.data.cards td.cell-name{font-weight:700;background:#f7f9fb}
  table.data.cards td[colspan]{justify-content:center;text-align:center}
  table.data.cards td[colspan]::before{content:none}
}
/* 학생 상단 내비: 모바일에서 가로 스크롤 */
@media (max-width:760px){
  .topbar-nav{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}
  .topbar-nav .nav-item{white-space:nowrap}
  .cta-row .btn{flex:1 1 auto}
}

.login-alt{margin-top:.8rem;opacity:.92}

.panel--narrow{max-width:480px}

/* ==========================================================================
   학생 /me 마이페이지 (CSP style-src 'self' 준수 · append-only · admin 무영향)
   base .kpi-grid(6열)·body.app·login·calendar 규칙은 절대 수정하지 않음.
   ========================================================================== */

/* KPI 그리드 개수 고정 modifier (인라인 grid-template-columns 대체) */
.kpi-grid--2{grid-template-columns:repeat(2,1fr)}
.kpi-grid--3{grid-template-columns:repeat(3,1fr)}
.kpi-grid--4{grid-template-columns:repeat(4,1fr)}

/* 인사 히어로 */
.dash-hero{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-d) 100%);
  color:#fff;border-radius:var(--radius);padding:1.2rem 1.4rem;margin-bottom:1.2rem;box-shadow:var(--shadow)}
.dash-hero .hero-avatar{width:52px;height:52px;flex:0 0 52px;border-radius:12px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:800}
.dash-hero .hero-main{min-width:0}
.dash-hero .hero-name{font-size:1.4rem;font-weight:800;letter-spacing:-.3px;line-height:1.1}
.dash-hero .hero-sub{margin-top:.35rem;font-size:.86rem;opacity:.9}
.dash-hero .hero-meta{margin-left:auto;display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}

/* 요약 칩 */
.chip{display:inline-flex;align-items:center;gap:.35rem;font-size:.78rem;font-weight:600;
  padding:.28rem .7rem;border-radius:999px;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.26);color:#fff;white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis}
.chip .chip-k{opacity:.78;font-weight:500}

/* 진도바 라벨 행 (width 는 기존 .w-* 유틸, 인라인 0) */
.progress-row{display:flex;align-items:center;gap:.7rem;margin:.6rem 0 .2rem}
.progress-row .progress{flex:1;margin:0}
.progress-pct{font-size:1.05rem;font-weight:800;letter-spacing:-.3px;color:var(--brand);min-width:3.2rem;text-align:right}

/* KPI 배지형 값(실무 전환 등) */
.kpi-tag{display:inline-block;font-size:1.05rem;font-weight:800;line-height:1.4}

/* 패널 헤더 우측 링크 / 유틸 / 빈상태 */
.panel-head .spacer{margin-left:auto}
.panel-link{font-size:.82rem;font-weight:600}
.m-0{margin:0}
.form-block{width:100%}
.empty{color:#97a0ab;font-size:.88rem;padding:.4rem 0}

/* 미정의 클래스 보충 (학생 전용; admin 미사용) */
.impersonation-bar{background:var(--ambbg);color:var(--amb);border-bottom:1px solid #e6cf9a;
  padding:.55rem 1.4rem;font-size:.84rem;display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;flex-shrink:0}
.impersonation-bar strong{color:var(--ink)}
.impersonation-bar a{margin-left:auto;font-weight:700}

/* modifier·히어로 반응형 (base 1100/640 미디어쿼리보다 뒤=최종 우선) */
@media (max-width:1100px){
  .kpi-grid--2{grid-template-columns:repeat(2,1fr)}
  .kpi-grid--3{grid-template-columns:repeat(3,1fr)}
  .kpi-grid--4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .kpi-grid--2,.kpi-grid--3,.kpi-grid--4{grid-template-columns:repeat(2,1fr)}
  .dash-hero{padding:1rem 1.1rem}
  .dash-hero .hero-name{font-size:1.2rem}
  .dash-hero .hero-meta{margin-left:0;width:100%}
  .dash-hero .chip{white-space:normal}
}

/* 로그인: 카드 + 학생코드 폴백(details) 세로 정렬 */
.login-col{display:flex;flex-direction:column;align-items:stretch;width:100%;max-width:23rem}
.login-fallback{margin-top:1rem;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.login-fallback>summary{cursor:pointer;list-style:none;padding:.7rem .9rem;font-size:.85rem;color:var(--muted);text-align:center;font-weight:600}
.login-fallback>summary::-webkit-details-marker{display:none}
.login-fallback[open]>summary{border-bottom:1px solid var(--line)}
.login-fallback .login-card{max-width:none;padding:1rem .9rem}

/* ==========================================================================
   클래스/학습 안내(class_guide_body.php) — 3개 화면 공용
   ========================================================================== */
.guide-legend{display:grid;grid-template-columns:max-content 1fr;gap:.4rem .9rem;font-size:.9rem;align-items:start;margin:.2rem 0 0}
.guide-legend dt{font-weight:700;color:#34465c}
.guide-legend dd{margin:0;color:var(--ink);overflow-wrap:anywhere}
.guide-levels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-top:.2rem}
.guide-card{border:1px solid var(--line);border-radius:10px;padding:1rem 1.1rem;background:#fff}
.guide-card h4{margin:0 0 .3rem;font-size:1rem;display:flex;align-items:baseline;gap:.4rem}
.guide-card .lv-code{font-size:.74rem;color:var(--muted);font-weight:600}
.guide-card p{margin:.3rem 0 0;font-size:.9rem;line-height:1.6;color:#3a4654}
@media (max-width:760px){ .guide-levels{grid-template-columns:1fr} }