:root{
  --navy:#1F3A5F; --accent:#2E6E8E; --light:#EAF1F5; --line:#D5DEE4;
  --ok:#1E7D5A; --bg:#F5F7F9; --text:#222; --muted:#6b7785;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
a{color:var(--accent)}
.topbar{background:var(--navy);color:#fff;padding:14px 22px;display:flex;align-items:center;justify-content:space-between}
.topbar h1{font-size:18px;margin:0;font-weight:700;letter-spacing:.2px}
.topbar .sub{font-size:12px;opacity:.8}
.topbar a{color:#cfe0ea;font-size:13px;text-decoration:none}
.wrap{max-width:1080px;margin:24px auto;padding:0 18px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:820px){.grid{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 1px 3px rgba(20,40,60,.04)}
.card h2{margin:0 0 14px;font-size:16px;color:var(--navy)}
.drop{border:2px dashed #b8c6d0;border-radius:12px;padding:36px 18px;text-align:center;color:var(--muted);cursor:pointer;transition:.15s;background:#fbfdfe}
.drop.drag{border-color:var(--accent);background:var(--light);color:var(--navy)}
.drop strong{color:var(--navy)}
canvas{width:100%;height:280px;background:#fff;border:1px solid var(--line);border-radius:8px}
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
select,input[type=number],input[type=text],input[type=email],input[type=password],textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:14px;background:#fff;color:var(--text)}
select:focus,input:focus,textarea:focus{outline:none;border-color:var(--accent)}
.row{display:flex;gap:12px}.row>*{flex:1}
button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:11px 18px;font-size:14px;font-weight:600;cursor:pointer}
button:hover{background:#255a75}
button.ghost{background:#fff;color:var(--accent);border:1px solid var(--accent)}
button.sm{padding:6px 10px;font-size:12px}
button.danger{background:#b5462f}
.stat{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px dashed var(--line);font-size:14px}
.stat:last-child{border-bottom:0}
.stat b{color:var(--navy)}
.total{margin-top:12px;padding:16px;background:var(--navy);color:#fff;border-radius:10px;text-align:center}
.total .amt{font-size:30px;font-weight:800;letter-spacing:.5px}
.total .unit{font-size:13px;opacity:.85}
.muted{color:var(--muted);font-size:12px}
.badge{display:inline-block;background:var(--light);color:var(--navy);border-radius:20px;padding:3px 10px;font-size:12px;margin:2px}
.hidden{display:none}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{border:1px solid var(--line);padding:6px 8px;text-align:left}
th{background:var(--navy);color:#fff;font-weight:600}
.matblock{border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:14px;background:#fbfdfe}
.thick-row{display:grid;grid-template-columns:70px 1fr 1fr 1fr 34px;gap:8px;align-items:center;margin-bottom:6px}
.thick-row .hd{font-size:11px;color:var(--muted)}
.notice{background:#fff6e5;border:1px solid #f0d9a8;color:#7a5a10;padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:14px}
.ok-msg{background:#e6f5ee;border:1px solid #a8dcc2;color:#186247;padding:10px 12px;border-radius:8px;font-size:13px;margin:10px 0}
.err-msg{background:#fdecea;border:1px solid #f0b6ab;color:#9a331f;padding:10px 12px;border-radius:8px;font-size:13px;margin:10px 0}
.tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.tabs button{background:#fff;color:var(--navy);border:1px solid var(--line)}
.tabs button.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.login-box{max-width:360px;margin:80px auto}