:root{
  --navy:#132a52; --navy-2:#1d3a6e; --navy-soft:#eef2f9;
  --gold:#c9a227; --gold-soft:#faf5e3;
  --ink:#22304a; --muted:#6b7a95; --line:#dfe6f0;
  --ok:#1d7a4f; --warn:#b3541e; --bad:#b3261e;
  --radius:14px; --shadow:0 4px 18px rgba(19,42,82,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:'Sarabun',sans-serif;background:#f5f7fb;color:var(--ink);font-size:16px;line-height:1.6}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* topbar */
.topbar{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;border-bottom:4px solid var(--gold)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px}
.brand-emblem{width:46px;height:46px;border-radius:50%;background:var(--gold);color:var(--navy);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:22px;flex:0 0 auto}
.brand-title{font-weight:700;font-size:18px}
.brand-sub{font-size:12.5px;opacity:.85}
.mainnav{display:flex;gap:4px;flex-wrap:wrap}
.mainnav a{color:#e8edf7;text-decoration:none;padding:8px 13px;border-radius:8px;font-size:15px}
.mainnav a:hover{background:rgba(255,255,255,.12)}
.mainnav a.active{background:var(--gold);color:var(--navy);font-weight:600}
.mainnav a.nav-login{border:1px solid rgba(255,255,255,.45)}

/* page */
.page-head{margin:26px 0 6px;display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.page-head h1{margin:0;font-size:24px;color:var(--navy)}
.page-head .sub{color:var(--muted);font-size:14px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:18px 0}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px}
.card .k{font-size:13px;color:var(--muted)}
.card .v{font-size:30px;font-weight:700;color:var(--navy);line-height:1.2}
.card .d{font-size:12.5px;color:var(--muted)}
.card.gold{border-top:4px solid var(--gold)}
.card.navy{border-top:4px solid var(--navy)}

/* panel */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin:18px 0}
.panel h2{margin:0 0 12px;font-size:18px;color:var(--navy);border-left:4px solid var(--gold);padding-left:10px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:860px){.grid-2{grid-template-columns:1fr}}

/* tables */
table.data{width:100%;border-collapse:collapse;font-size:15px}
table.data th{background:var(--navy);color:#fff;padding:9px 10px;text-align:center;font-weight:600;font-size:14px}
table.data td{border-bottom:1px solid var(--line);padding:8px 10px}
table.data tr:hover td{background:var(--navy-soft)}
table.data td.num{text-align:center;font-variant-numeric:tabular-nums}
table.data tr.total td{background:var(--gold-soft);font-weight:700;border-top:2px solid var(--gold)}
table.data tr.stage td{background:#e9eef7;font-weight:600;color:var(--navy)}
.tag{display:inline-block;padding:1px 10px;border-radius:99px;font-size:12.5px;font-weight:600}
.tag.ok{background:#e3f3ea;color:var(--ok)}
.tag.warn{background:#fbeadd;color:var(--warn)}
.tag.bad{background:#fbe3e2;color:var(--bad)}
.pos{color:var(--bad);font-weight:700}
.zero{color:var(--ok);font-weight:700}

/* forms */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
label.f{display:block;font-size:13.5px;color:var(--muted);margin-bottom:4px}
input[type=text],input[type=number],input[type=password],select{
  width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:9px;font-family:inherit;font-size:15px;background:#fff}
input:focus,select:focus{outline:2px solid var(--gold);border-color:var(--gold)}
.btn{display:inline-block;background:var(--navy);color:#fff;border:none;border-radius:9px;padding:10px 22px;font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--navy-2)}
.btn.gold{background:var(--gold);color:var(--navy)}
.btn.sm{padding:5px 13px;font-size:13.5px}
.alert{padding:11px 15px;border-radius:10px;margin:12px 0;font-size:14.5px}
.alert.ok{background:#e3f3ea;color:var(--ok);border:1px solid #bfe3cf}
.alert.err{background:#fbe3e2;color:var(--bad);border:1px solid #f2c2c0}

/* login */
.login-box{max-width:400px;margin:60px auto}

/* chart */
.chart-wrap{position:relative;height:320px}

/* footer */
.footer{margin-top:40px;background:var(--navy);color:#cdd8ec;padding:18px 0;font-size:13.5px;border-top:4px solid var(--gold)}
.footer-note{opacity:.75;margin-top:2px}

/* admin tabs */
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0}
.tabs a{padding:8px 15px;border-radius:9px;background:#fff;border:1px solid var(--line);color:var(--ink);text-decoration:none;font-size:14.5px}
.tabs a.active{background:var(--navy);color:#fff;border-color:var(--navy)}
td input[type=number]{width:90px;text-align:center;padding:5px}
td input[type=text]{padding:5px 8px}

@media print{.topbar,.footer,.tabs,.btn{display:none!important}.panel{box-shadow:none;border:1px solid #999}}