:root{
  --navy:#1f3a5f; --navy2:#2d5382; --ink:#1a1a1a; --muted:#6b7280;
  --line:#e5e7eb; --bg:#f4f6f9; --card:#fff; --ok:#0f766e; --warn:#b45309;
  --bad:#b91c1c; --soft:#eef2f7;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:15px}
a{color:var(--navy2);text-decoration:none}
a:hover{text-decoration:underline}

/* top bar */
.topbar{display:flex;align-items:center;gap:18px;background:var(--navy);color:#fff;padding:10px 18px;flex-wrap:wrap;position:sticky;top:0;z-index:10}
.brand{font-weight:700;font-size:17px}
.brand.big{font-size:22px;margin-bottom:18px;color:var(--navy);text-align:center}
.topbar nav{display:flex;gap:4px;flex:1;flex-wrap:wrap}
.topbar nav a{color:#cdd8e6;padding:6px 12px;border-radius:7px;font-weight:500}
.topbar nav a:hover{background:rgba(255,255,255,.1);text-decoration:none}
.topbar nav a.on{background:#fff;color:var(--navy)}
.topbar .logout{color:#cdd8e6;font-size:14px}

main{max-width:1080px;margin:0 auto;padding:22px 18px 60px}
h1{font-size:24px;margin:0 0 16px}
h2{font-size:16px;margin:26px 0 10px;color:var(--navy)}
.muted{color:var(--muted)}
.head-row{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.flash{background:#dcfce7;border:1px solid #86efac;color:#166534;padding:10px 14px;border-radius:8px;margin-bottom:16px}

/* buttons */
.btn{display:inline-block;background:var(--navy);color:#fff;padding:9px 15px;border-radius:8px;border:0;font:inherit;cursor:pointer}
.btn:hover{background:var(--navy2);text-decoration:none}
.btn.ghost{background:#e5e7eb;color:#111}
.btn.danger{background:var(--bad)}
.btn.small{padding:6px 11px;font-size:13px;margin-top:22px}
.mini{font-size:13px;padding:2px 6px;border:0;background:none;cursor:pointer;color:var(--navy2)}
.mini.danger{color:var(--bad);font-size:16px;line-height:1}
.inline{display:inline}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center}
.card .n{font-size:26px;font-weight:700;color:var(--navy)}
.card .n.bad{color:var(--bad)}
.card .n.warn{color:var(--warn)}
.card .l{font-size:13px;color:var(--muted);margin-top:4px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}

/* tables */
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
th{background:var(--soft);color:var(--navy);font-weight:600}
tr:last-child td{border-bottom:0}
td.r,th.r{text-align:right}
.nowrap{white-space:nowrap}
tr.overdue td{background:#fdeaea}
tr.soon td{background:#fdf6e3}

/* pills */
.pill{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.pill.ok{background:#d1fae5;color:#065f46}
.pill.warn{background:#fef3c7;color:#92400e}
.pill.off{background:#e5e7eb;color:#4b5563}
.bad{color:var(--bad)}

/* detail grid */
.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;font-size:14px}
.detail-grid .col2{grid-column:span 2}
.detail-grid b{color:var(--muted);font-weight:600;font-size:13px}

/* forms */
.form{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;max-width:720px}
.form label{display:block;margin-bottom:14px;font-size:14px;font-weight:600;color:#374151}
.form input,.form select,.form textarea{width:100%;margin-top:5px;padding:9px 11px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;background:#fff}
.form textarea{resize:vertical}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.actions{margin-top:8px}
.part-add{max-width:none;margin-top:12px}
.grid-parts{display:grid;grid-template-columns:2fr 1fr 1fr .6fr .8fr .8fr auto;gap:0 10px;align-items:end}
.grid-parts label{margin-bottom:0}
.grid-parts .btn{white-space:nowrap}
.fill-label{max-width:420px}
.fill-label select{width:100%;margin-top:5px;padding:9px 11px;border:1px solid #cbd5e1;border-radius:8px;font:inherit;background:#fff}
label.check{display:flex;align-items:center;gap:8px;font-weight:500;margin-top:12px;color:#374151}
label.check input{width:auto;margin:0}

/* totals box */
.totals-box{max-width:360px;margin-left:auto;margin-top:16px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.totals-box div{display:flex;justify-content:space-between;padding:5px 0;font-size:14px}
.totals-box .grand{border-top:2px solid var(--navy);margin-top:6px;padding-top:10px;font-size:17px;color:var(--navy)}

/* login */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--navy)}
.login{background:#fff;padding:34px 30px;border-radius:14px;width:320px;box-shadow:0 8px 30px rgba(0,0,0,.3)}
.login label{display:block;font-weight:600;font-size:14px;margin-bottom:14px}
.login input{width:100%;margin-top:6px;padding:10px 12px;border:1px solid #cbd5e1;border-radius:8px;font:inherit}
.login button{width:100%;background:var(--navy);color:#fff;border:0;padding:11px;border-radius:8px;font:inherit;font-weight:600;cursor:pointer}
.login .err{background:#fee2e2;color:#991b1b;padding:8px 12px;border-radius:8px;margin-bottom:14px;font-size:14px}

@media (max-width:800px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
  .detail-grid{grid-template-columns:1fr 1fr}
  .grid2{grid-template-columns:1fr}
  .grid-parts{grid-template-columns:1fr 1fr}
}