:root{--ink:#17262e;--muted:#596e77;--paper:#f5f7f5;--white:#fff;--line:#d9e3df;--teal:#0d6b66;--teal-soft:#e4f2ed;--navy:#142e36;--lime:#d4f084;--amber:#925a12;--amber-bg:#fff4df;--red:#a43e3b;--red-bg:#fff0ef;--blue:#335c9a;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}*{box-sizing:border-box}body,html{margin:0}body{color:var(--ink);background:var(--paper);font:15px/1.7 -apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans KR,Malgun Gothic,sans-serif}button,input,select,textarea{font:inherit}a{color:var(--teal);text-underline-offset:3px;overflow-wrap:anywhere}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #569bef;outline-offset:3px}button{border:1px solid var(--line);border-radius:9px;background:white;color:var(--ink);padding:9px 14px;min-height:40px;font-weight:650;cursor:pointer}button:hover:not(:disabled){border-color:var(--teal)}button:disabled{opacity:.5;cursor:not-allowed}.primary{background:var(--teal);color:white;border-color:var(--teal)}.primary:hover:not(:disabled){background:#085b57}.secondary{background:var(--teal-soft);color:var(--teal);border-color:transparent}.danger{background:var(--red);color:white;border-color:var(--red)}.small-btn{font-size:12px;padding:5px 10px;min-height:32px}input[type=password],input[type=text],select{border:1px solid var(--line);border-radius:9px;padding:9px 12px;background:white;min-height:42px;width:100%}.mono,code{font-family:var(--mono);font-size:.92em}code{background:#edf1f2;padding:1px 5px;border-radius:4px}.shell{display:grid;grid-template-columns:236px minmax(0,1fr);min-height:100vh}.rail{position:-webkit-sticky;position:sticky;top:0;height:100vh;background:var(--navy);color:#d9e8e7;padding:28px 18px;display:flex;flex-direction:column;z-index:20}.brand{padding:0 10px 22px;border-bottom:1px solid #38525a}.brand-symbol{display:inline-grid;place-items:center;background:var(--lime);color:var(--navy);border-radius:10px;width:36px;height:36px;font-size:16px;font-weight:850;margin-bottom:12px}.brand-name{font-size:19px;line-height:1.3;font-weight:750;color:white;letter-spacing:-.6px}.brand-sub{font-size:11px;letter-spacing:.8px;color:#b8cece;margin-top:9px}.rail nav{display:grid;grid-gap:5px;gap:5px;margin-top:22px}.nav-link{display:flex;align-items:center;gap:12px;color:#c5d8d8;text-decoration:none;font-size:14px;padding:10px 12px;border-radius:9px;border:1px solid transparent;font-weight:600}.nav-link .num{font-family:var(--mono);font-size:11px;opacity:.55}.nav-link.active{background:#294a50;color:var(--lime);border-color:#365d60}.nav-link:hover{background:#24464d;color:white}.rail-note{margin-top:auto;padding:20px 10px 0;color:#a6bfbe;font-size:11px;line-height:1.85}.rail-note strong{color:#d4e7e4;font-weight:600}.main{min-width:0}.topbar{height:64px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.95);padding:0 38px;justify-content:space-between;gap:14px}.topbar,.topbar-left{display:flex;align-items:center}.topbar-left{gap:10px;min-width:0;font-size:12px;color:var(--muted);flex-wrap:wrap}.page{max-width:1240px;margin:auto;padding:32px 38px 64px}.badge{display:inline-flex;align-items:center;gap:5px;border-radius:5px;padding:2px 8px;background:var(--teal-soft);color:var(--teal);font-size:11px;font-weight:750;line-height:1.6;white-space:nowrap}.badge.warn{color:var(--amber);background:var(--amber-bg)}.badge.muted{color:var(--muted);background:#edf1f2}.badge.red{color:var(--red);background:var(--red-bg)}.badge.navy{color:white;background:var(--navy)}.eyebrow{font-size:11px;color:var(--teal);font-weight:800;letter-spacing:1.8px;text-transform:uppercase;margin:0 0 10px}h1{font-size:30px;line-height:1.32;letter-spacing:-1.2px;margin:0 0 12px;font-weight:780}h2{font-size:21px;line-height:1.4;letter-spacing:-.6px;margin:0 0 10px}h3{font-size:16px;line-height:1.5;margin:0 0 8px;letter-spacing:-.3px}.lead{font-size:15px;max-width:780px;margin:0 0 20px;line-height:1.8}.lead,.muted{color:var(--muted)}.small{font-size:12px}.hero{background:var(--navy);color:white;border-radius:18px;padding:30px 32px}.hero .eyebrow{color:var(--lime)}.hero .lead{color:#bdd1d1}.hero .primary{background:var(--lime);border-color:var(--lime);color:#203b2c}.hero .secondary{background:#2e4f55;color:white;border-color:#45646a}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:30px 0 12px}.section-head h2{margin:0;font-size:19px}.cards3{grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:14px}.cards2,.cards3{display:grid;gap:14px}.cards2{grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:14px}.card{background:white;border:1px solid var(--line);border-radius:12px;padding:20px;min-width:0}.card p{margin:6px 0 0;color:var(--muted);font-size:13px}.callout{border:1px solid #d5e5db;border-left:4px solid var(--teal);border-radius:10px;background:#ecf5ef;padding:14px 18px;margin:16px 0;font-size:13px}.callout.warn{background:var(--amber-bg);border-color:#edddb5 #edddb5 #edddb5 #bd842b}.callout.red{background:var(--red-bg);border-color:#efc9c6;border-left-color:var(--red)}.callout strong{display:block;font-size:14px;margin-bottom:3px}.callout p{margin:0;color:#4e6268}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));background:white;border:1px solid var(--line);border-radius:13px;overflow:hidden}.stat{padding:16px 14px;text-align:center;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat b{display:block;color:var(--teal);font-size:26px;font-weight:760;line-height:1.3}.stat span{display:block;font-size:11px;color:var(--muted);margin-top:4px}table{width:100%;border-collapse:collapse;background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:13px}td,th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#f0f4f2;font-size:12px;color:var(--muted);font-weight:700}tr:last-child td{border-bottom:0}.table-wrap{overflow-x:auto;border-radius:12px}ul.plain{margin:6px 0 0;padding-left:18px}ul.plain li{margin:2px 0}.check-ok{color:var(--teal);font-weight:700}.check-bad{color:var(--red);font-weight:700}.bar{height:8px;border-radius:6px;background:#e6ece9;overflow:hidden}.bar>i{display:block;height:100%;background:var(--teal)}.filters{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 14px}.filters>*{width:auto;min-width:160px}.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}.tabs button.active{background:var(--navy);color:white;border-color:var(--navy)}details{background:white;border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:10px}details summary{cursor:pointer;font-weight:700}.modal-backdrop{position:fixed;inset:0;background:rgba(20,46,54,.45);display:grid;place-items:center;z-index:100;padding:16px}.modal{background:white;border-radius:14px;padding:24px;width:min(720px,100%);max-height:90vh;overflow:auto}.center-page{min-height:100vh;display:grid;place-items:center;padding:16px}.login-card{width:min(400px,100%)}.login-card label{display:block;font-size:12px;font-weight:700;color:var(--muted);margin:12px 0 4px}.error-text{color:var(--red);font-size:13px;margin-top:10px}.log{font-family:var(--mono);font-size:12px;background:#0f2329;color:#cfe3e0;border-radius:10px;padding:12px 14px;max-height:300px;overflow:auto;white-space:pre-wrap}.exam{display:grid;grid-template-rows:64px minmax(0,1fr);height:100vh}.exam-head{display:flex;align-items:center;gap:14px;padding:0 16px;background:white;border-bottom:1px solid var(--line)}.exam-head .brand-mini{font-weight:800;letter-spacing:-.4px;white-space:nowrap}.exam-head .spacer{flex:1 1}.timer{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--navy);min-width:112px;text-align:center}.timer.low{color:var(--red)}.status-pill{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px;white-space:nowrap}.dot{width:8px;height:8px;border-radius:50%;background:#9bb;display:inline-block}.dot.on{background:var(--teal)}.dot.off{background:var(--red)}.exam-body{display:grid;grid-template-columns:300px minmax(0,1fr) 250px;min-height:0}.exam-body.no-right{grid-template-columns:300px minmax(0,1fr)}.pane{overflow:auto;min-height:0;background:white}.pane-left{border-right:1px solid var(--line);padding:14px 16px}.pane-right{border-left:1px solid var(--line);padding:14px;font-size:13px}.pane-center{background:#e9eeec;position:relative}.pane-center iframe{border:0;width:100%;height:100%;display:block;background:white}.q-tabs{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:6px;gap:6px;margin-bottom:12px}.q-tabs button{padding:6px 4px;min-height:0;font-size:13px}.q-tabs button.active{background:var(--navy);color:white;border-color:var(--navy)}.q-body{font-size:13px}.q-body h3{font-size:15px}.q-body dt{font-weight:700;color:var(--muted);font-size:11px;letter-spacing:.5px;margin-top:12px;text-transform:uppercase}.q-body dd{margin:3px 0 0}.file-row{display:flex;justify-content:space-between;gap:6px;padding:6px 0;border-bottom:1px solid #edf1ef}@media (max-width:1100px){.exam-body,.exam-body.no-right{grid-template-columns:260px minmax(0,1fr)}.pane-right{position:fixed;right:0;top:64px;bottom:0;width:280px;z-index:30;box-shadow:-8px 0 24px rgba(0,0,0,.12);transform:translateX(100%);transition:transform .2s}.pane-right.open{transform:none}}@media (max-width:860px){.shell{grid-template-columns:1fr}.rail{position:static;height:auto;padding:14px 16px}.rail nav{grid-template-columns:repeat(3,1fr);margin-top:12px}.nav-link{padding:8px 10px;font-size:13px;white-space:nowrap}.nav-link .num{display:none}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.brand{padding-bottom:12px}.rail-note{display:none}.topbar{padding:0 16px;height:auto;min-height:56px}.page{padding:20px 16px 48px}.cards2,.cards3{grid-template-columns:1fr}.stat-grid{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}h1{font-size:24px}.exam-body,.exam-body.no-right{grid-template-columns:1fr;grid-template-rows:auto minmax(420px,1fr)}.pane-left{border-right:0;border-bottom:1px solid var(--line);max-height:40vh}.exam-head{flex-wrap:wrap;height:auto;padding:8px 12px}.exam{grid-template-rows:auto minmax(0,1fr)}}.hide-wide{display:none}@media (max-width:1100px){.hide-wide{display:inline-flex}}