:root{
  --bg:#eef1f5; --panel:#fff; --ink:#222b36; --muted:#667180; --line:#d3d9e2; --head:#f1f4f8;
  --accent:#23529b; --accent-ink:#fff; --accent-soft:#e4ecf8; --sub:#e08a1e;
  --warn:#c8372d; --warn-soft:#fbe8e6; --ok:#1d7a44; --ok-soft:#e2f3e8; --wait:#9a6200; --wait-soft:#fff1d1;
  --radius:3px; --side:210px; --gnb:#16305c;
  --font:'Pretendard Variable',Pretendard,'Malgun Gothic','Noto Sans KR',system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:13px/1.5 var(--font);-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--accent)}
h1,h2,h3{margin:0}
h1{font-size:18px} h2{font-size:14px} h3{font-size:13px}
.num{font-variant-numeric:tabular-nums}

/* shell: 상단 GNB + 좌측 LNB */
.shell{min-height:100vh}
.gnb{height:48px;background:var(--gnb);color:#fff;display:flex;align-items:center;gap:14px;padding:0 18px;position:sticky;top:0;z-index:20}
.gnb img{width:26px;height:26px}
.gnb b{font-size:15px;letter-spacing:-.01em}
.gnb .sys{color:#9db4d8;font-size:12px;padding-left:12px;border-left:1px solid #3a578a}
.gnb .grow{flex:1}
.gnb .who{font-size:12px;color:#c9d6ec}
.gnb select{background:#0f2447;border:1px solid #3a578a;color:#fff;padding:4px 8px;border-radius:3px;width:auto;max-width:46vw}
.gnb a.out{color:#c9d6ec;font-size:12px;text-decoration:none;border:1px solid #3a578a;padding:4px 10px;border-radius:3px}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:20px;cursor:pointer}
.body{display:grid;grid-template-columns:var(--side) 1fr;min-height:calc(100vh - 48px)}
.side{background:#fff;border-right:1px solid var(--line);padding:10px 0;position:sticky;top:48px;height:calc(100vh - 48px);overflow:auto}
.nav .sep{font-size:11px;color:#7a8696;background:var(--head);padding:6px 16px;margin-top:8px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-weight:600}
.nav a{display:block;padding:9px 16px 9px 20px;color:#333d4a;text-decoration:none;border-left:3px solid transparent}
.nav a:hover{background:#f5f7fa}
.nav a.on{background:var(--accent-soft);border-left-color:var(--accent);color:var(--accent);font-weight:700}
.side .note{padding:14px 16px;font-size:11.5px;color:#8a94a2}
.main{min-width:0}
.page{padding:16px 22px 60px}
.crumb{font-size:12px;color:#8a94a2;margin-bottom:6px}
.crumb b{color:#4a5565;font-weight:500}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px;flex-wrap:wrap;padding-bottom:10px;border-bottom:2px solid var(--gnb)}
.page-head h1{padding-left:10px;border-left:4px solid var(--accent)}
.page-head p{margin:3px 0 0 14px;color:var(--muted);font-size:12.5px}

/* primitives */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.card + .card{margin-top:14px}
.grid > .card + .card{margin-top:0}
.grid + .card{margin-top:14px}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.card > h2:first-child,.card-h h2{padding-left:8px;border-left:3px solid var(--accent);line-height:1.2}
.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(4,1fr)} .g3{grid-template-columns:repeat(3,1fr)} .g2{grid-template-columns:repeat(2,1fr)}
.g-21{grid-template-columns:2fr 1fr} .g-12{grid-template-columns:1fr 2fr}
.btn{border:1px solid #b8c1ce;background:#fff;padding:5px 12px;border-radius:3px;cursor:pointer;font-weight:600;white-space:nowrap;text-decoration:none;display:inline-flex;align-items:center;gap:6px;color:#2b3542;font-size:13px}
.btn:hover{background:#f3f6fa}
.btn.pri{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.pri:hover{background:#1b4282}
.btn.warn{background:var(--warn);border-color:var(--warn);color:#fff}
.btn.sm{padding:2px 8px;font-size:12px}
.btn:disabled{opacity:.45;cursor:not-allowed}
input[type=text],input[type=search],input[type=date],input[type=number],input[type=tel],input[type=password],select,textarea{width:100%;padding:5px 8px;border:1px solid #b8c1ce;border-radius:3px;background:#fff}
input:focus,select:focus,textarea:focus,.btn:focus-visible{outline:2px solid #7fa3de;outline-offset:0}
label.f{display:block;font-size:12px;color:#4a5565;font-weight:600;margin-bottom:9px}
label.f > *:not(span){margin-top:3px;font-weight:400;color:var(--ink)}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.row .grow{flex:1;min-width:130px}
.muted{color:var(--muted)} .small{font-size:12px}
.tag{display:inline-block;padding:1px 7px;border-radius:2px;font-size:11.5px;font-weight:600;background:#e9edf2;color:#4a5565;white-space:nowrap}
.tag.ok{background:var(--ok-soft);color:var(--ok)} .tag.wait{background:var(--wait-soft);color:var(--wait)} .tag.no{background:var(--warn-soft);color:var(--warn)} .tag.acc{background:var(--accent-soft);color:var(--accent)}
.chips{display:inline-flex}
.chip{border:1px solid #b8c1ce;background:#fff;padding:4px 12px;cursor:pointer;font-weight:600;font-size:12.5px;margin-left:-1px}
.chip:first-child{border-radius:3px 0 0 3px;margin-left:0}.chip:last-child{border-radius:0 3px 3px 0}.chip:only-child{border-radius:3px}
.chip.on{background:var(--accent);border-color:var(--accent);color:#fff;position:relative}

/* 요약 지표 */
.kpi{padding:12px 16px;border-top:3px solid var(--accent)}
.kpi:nth-child(4){border-top-color:var(--warn)}
.kpi .l{color:var(--muted);font-size:12px;font-weight:600}
.kpi .v{font-size:26px;font-weight:700;margin:2px 0;font-variant-numeric:tabular-nums}
.kpi .v small{font-size:13px;font-weight:600;color:var(--muted);margin-left:2px}
.kpi .s{font-size:12px;color:var(--muted)}
.bar{height:6px;background:#e3e8ef;border-radius:1px;overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;background:var(--accent);transition:width .6s cubic-bezier(.2,.8,.2,1)}
.bar.warn i{background:var(--warn)}

/* 테이블 */
.tbl-wrap{overflow-x:auto;border-top:2px solid #4a5565}
table{width:100%;border-collapse:collapse}
th{text-align:center;font-size:12px;color:#333d4a;font-weight:700;padding:8px 10px;background:var(--head);border-bottom:1px solid #b8c1ce;border-right:1px solid var(--line);white-space:nowrap}
th:last-child{border-right:0}
td{padding:7px 10px;border-bottom:1px solid #e3e8ef;vertical-align:middle}
td.c{text-align:center}
tbody tr:nth-child(even){background:#fafbfd}
tbody tr:hover{background:#eef3fb}
td.r,th.r{text-align:right}
.name-link{font-weight:600;color:var(--accent);text-decoration:none}
.name-link:hover{text-decoration:underline}
.tcount{font-size:12px;color:var(--muted);margin:0 0 6px}.tcount b{color:var(--accent)}
.pager{display:flex;justify-content:center;gap:3px;margin-top:12px}
.pager button{min-width:28px;height:28px;border:1px solid #b8c1ce;background:#fff;cursor:pointer;border-radius:2px;font-size:12px}
.pager button.on{background:var(--accent);border-color:var(--accent);color:#fff}
.pager button:disabled{opacity:.4;cursor:default}
.empty{text-align:center;padding:26px 10px;color:var(--muted)}
.empty img{width:120px;opacity:.9}
.search-box{background:var(--head);border:1px solid var(--line);padding:10px 12px;margin-bottom:12px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}

.legend{display:flex;gap:12px;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:10px;height:10px;margin-right:5px;vertical-align:-1px}
svg text{font-family:var(--font)}
.bar-rect{transform-box:fill-box;transform-origin:bottom;animation:grow .8s cubic-bezier(.2,.8,.2,1) both}
@keyframes grow{from{transform:scaleY(0)}}

#toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);background:#222b36;color:#fff;padding:10px 18px;border-radius:3px;opacity:0;pointer-events:none;transition:.25s;z-index:50;max-width:90vw}
#toast.show{opacity:1;transform:translate(-50%,0)}
.modal-bg{position:fixed;inset:0;background:rgba(15,25,45,.5);display:flex;align-items:center;justify-content:center;z-index:40;padding:16px}
.modal{background:#fff;border-radius:3px;padding:20px;width:min(520px,100%);max-height:90vh;overflow:auto;border-top:3px solid var(--accent)}

.spec{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid #e9edf2}
.spec:last-child{border:0}
.dot{width:16px;height:16px;border-radius:50%;border:2px solid #b8c1ce;flex:none;display:grid;place-items:center}
.dot.ok{background:var(--ok);border-color:var(--ok)} .dot.wait{border-color:var(--sub);background:var(--wait-soft)}
.dot.ok::after{content:"";width:4px;height:8px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg) translate(-1px,-1px)}
.tl{border-left:2px solid var(--line);margin-left:6px;padding-left:14px}
.tl > div{position:relative;padding-bottom:12px}
.tl > div::before{content:"";position:absolute;left:-20px;top:6px;width:8px;height:8px;border-radius:50%;background:var(--accent)}

/* 로그인 */
.login-bg{min-height:100vh;display:grid;grid-template-columns:1.2fr 1fr;background:#fff}
.login-art{background:var(--gnb) center/cover no-repeat;color:#fff;padding:48px;display:flex;flex-direction:column;justify-content:flex-end}
.login-art h1{font-size:28px;line-height:1.35;margin-bottom:10px}.login-art p{color:#b9c9e6;max-width:420px}
.login-form{display:flex;flex-direction:column;justify-content:center;padding:48px 8%}
.login-form h2{font-size:20px;margin-bottom:20px}

/* 학생·학부모 모바일 */
.phone-bg{min-height:100vh;display:grid;place-items:start center;padding:24px 12px;background:#dfe5ee}
.phone{width:min(400px,100%);background:#fff;border-radius:22px;border:1px solid #c5cdda;box-shadow:0 14px 40px -18px rgba(15,35,70,.5);overflow:hidden;min-height:700px;display:flex;flex-direction:column}
.phone-top{background:var(--gnb);color:#fff;padding:20px 20px 24px;position:relative}
.phone-top img.art{position:absolute;right:0;bottom:0;width:170px;opacity:.9}
.phone-top h1{font-size:18px}
.phone-top p{margin:4px 0 0;color:#b9c9e6;font-size:13px;max-width:200px}
.phone-body{padding:16px;flex:1;background:#f6f8fb}
.phone-body .card{padding:12px}
.phone-nav{display:flex;border-top:1px solid var(--line);background:#fff}
.phone-nav a{flex:1;text-align:center;padding:11px 0;text-decoration:none;color:var(--muted);font-size:12px;font-weight:600}
.phone-nav a.on{color:var(--accent)}
.sigpad{width:100%;height:170px;border:1.5px dashed #8d98a8;border-radius:3px;background:#fff;touch-action:none;display:block}
.doc{background:#fff;color:#111;max-width:760px;margin:20px auto;padding:48px 52px;border:1px solid #ccc;font-family:'Noto Serif KR','Batang',serif;line-height:1.9}
.doc h1{text-align:center;font-size:22px;margin-bottom:24px;letter-spacing:.2em;border:0;padding:0}
.doc table td,.doc table th{border:1px solid #444;padding:8px 10px;font-size:13.5px;color:#111}
.doc table th{background:#f1f1f1}
.doc .sig{height:50px;vertical-align:middle}
.pbar{position:sticky;top:0;background:var(--bg);padding:10px;text-align:center;border-bottom:1px solid var(--line);z-index:3}
@media print{.pbar,.gnb,.side,.crumb,#toast,.noprint{display:none!important}.body{display:block}.page{padding:0}.doc{border:0;margin:0;padding:10mm}body{background:#fff}.card{border:1px solid #bbb;break-inside:avoid}}

@media(max-width:980px){.g4{grid-template-columns:repeat(2,1fr)} .g-21,.g-12,.g3{grid-template-columns:1fr} .login-bg{grid-template-columns:1fr}.login-art{min-height:200px;padding:24px}}
@media(max-width:760px){
  .body{grid-template-columns:1fr}
  .side{position:fixed;top:48px;left:0;width:230px;transform:translateX(-100%);transition:.25s;z-index:30;box-shadow:4px 0 16px rgba(0,0,0,.15)}
  .side.open{transform:none}
  .menu-btn{display:block}
  .gnb .sys,.gnb .who{display:none}
  .page{padding:14px 12px 50px}
  .g2{grid-template-columns:1fr}
  .doc{padding:24px 18px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}