:root{
  --navy:#2E5C8A; --navy-d:#244a70; --bg:#f4f6f9; --card:#fff;
  --ink:#1f2937; --muted:#6b7280; --line:#e5e7eb;
  --ok:#137a4b; --ok-bg:#e6f4ec; --warn:#9a6a00; --warn-bg:#fff4d6;
  --bad:#b42318; --bad-bg:#fdeceb;
}
*{box-sizing:border-box}
body{margin:0;font-family:"맑은 고딕","Malgun Gothic","Apple SD Gothic Neo",system-ui,sans-serif;
  background:var(--bg);color:var(--ink);font-size:16px;line-height:1.55}
a{color:var(--navy);text-decoration:none}
a:hover{text-decoration:underline}

/* topbar */
.topbar{display:flex;align-items:center;gap:20px;background:var(--navy);color:#fff;
  padding:10px 20px;flex-wrap:wrap}
.brand{font-size:20px;font-weight:700}
.mainnav{display:flex;gap:4px;flex-wrap:wrap;flex:1}
.mainnav a{color:#dbe6f2;padding:8px 14px;border-radius:8px;font-size:16px}
.mainnav a:hover{background:var(--navy-d);text-decoration:none;color:#fff}
.mainnav a.on{background:#fff;color:var(--navy);font-weight:700}
.user{display:flex;align-items:center;gap:12px;font-size:15px}
.user .logout{color:#fff;border:1px solid rgba(255,255,255,.4);padding:5px 10px;border-radius:6px}

.wrap{max-width:1200px;margin:24px auto;padding:0 20px}
.foot{text-align:center;color:var(--muted);padding:24px;font-size:14px}

h1{font-size:26px;margin:0 0 18px}
h2{font-size:20px;margin:24px 0 12px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.card .num{font-size:34px;font-weight:800;color:var(--navy)}
.card .lbl{color:var(--muted);font-size:15px;margin-top:4px}

/* table */
.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.panel-h{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);flex-wrap:wrap;gap:10px}
table{width:100%;border-collapse:collapse}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:15px}
th{background:#f8fafc;color:#374151;font-weight:700;white-space:nowrap}
tr:hover td{background:#fafbfc}
td.c,th.c{text-align:center}

/* badges */
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:13px;font-weight:700}
.b-ok{background:var(--ok-bg);color:var(--ok)}
.b-warn{background:var(--warn-bg);color:var(--warn)}
.b-bad{background:var(--bad-bg);color:var(--bad)}
.b-mute{background:#eef1f5;color:#6b7280}

/* buttons + forms */
.btn{display:inline-block;background:var(--navy);color:#fff;border:0;border-radius:8px;
  padding:10px 18px;font-size:15px;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--navy-d);text-decoration:none}
.btn.sm{padding:6px 12px;font-size:14px}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid var(--navy)}
.btn.danger{background:var(--bad)}
input,select,textarea{font-family:inherit;font-size:15px;padding:9px 11px;border:1px solid #cbd5e1;
  border-radius:8px;width:100%}
label{display:block;font-weight:700;font-size:14px;margin:12px 0 4px;color:#374151}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}
.form-actions{margin-top:18px;display:flex;gap:10px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.toolbar input[type=search]{max-width:280px}

.flash{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:15px}
.flash.ok{background:var(--ok-bg);color:var(--ok)}
.flash.err{background:var(--bad-bg);color:var(--bad)}

/* login */
.login-box{max-width:380px;margin:80px auto;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:32px}
.login-box h1{text-align:center;font-size:24px}

/* 클릭 가능한 숫자 */
.link-count{background:#eef4fb;border:1px solid #cfe0f2;color:var(--navy);font-weight:800;
  font-size:15px;padding:3px 12px;border-radius:8px;cursor:pointer;font-family:inherit}
.link-count:hover{background:var(--navy);color:#fff}

/* progress bar (정원) */
.bar{height:8px;background:#eef1f5;border-radius:4px;overflow:hidden;min-width:80px}
.bar>span{display:block;height:100%;background:var(--navy)}
.bar.full>span{background:var(--bad)}

@media(max-width:640px){
  body{font-size:15px}
  .form-grid{grid-template-columns:1fr}
  th,td{padding:9px 8px;font-size:14px}
  .mainnav a{padding:7px 10px;font-size:15px}
}