:root {
  --primary: #0b6fb8;
  --primary-dark: #075286;
  --accent: #36a853;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --danger: #c0392b;
  --warning: #c57b00;
  --border: #dbe3ec;
  --shadow: 0 10px 30px rgba(24, 55, 88, .08);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); text-decoration: none; }
.topbar { min-height: 64px; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: white; display: flex; align-items: center; justify-content: space-between; padding: 12px 22px; position: sticky; top: 0; z-index: 20; box-shadow: var(--shadow); }
.brand { font-weight: 800; letter-spacing: .2px; }
.brand small { display: block; font-weight: 500; opacity: .8; font-size: 11px; }
.nav { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.nav a { color: white; padding: 8px 10px; border-radius: 8px; font-size: 14px; }
.nav a:hover, .nav a.active { background: rgba(255,255,255,.16); }
.container { width: min(1180px, calc(100% - 28px)); margin: 24px auto; }
.page-head { display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom:18px; }
h1,h2,h3 { margin-top: 0; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow); padding: 20px; margin-bottom: 18px; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.stat { border-left: 5px solid var(--primary); }
.stat .value { font-size: 26px; font-weight: 800; margin-top: 8px; }
.stat .label { color: var(--muted); font-size: 13px; }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:6px; border:0; border-radius:9px; padding:10px 14px; font-weight:700; cursor:pointer; background:#e9eef5; color:var(--text); }
.btn-primary { background: var(--primary); color:white; }
.btn-success { background: var(--accent); color:white; }
.btn-danger { background: var(--danger); color:white; }
.btn-warning { background: var(--warning); color:white; }
.btn-sm { padding:7px 9px; font-size:12px; }
form.inline { display:inline; }
label { display:block; font-weight:700; margin-bottom:6px; font-size:13px; }
input, select, textarea { width:100%; border:1px solid var(--border); border-radius:9px; padding:10px 11px; font:inherit; background:white; }
textarea { min-height:90px; resize:vertical; }
.form-group { margin-bottom:14px; }
.help { color:var(--muted); font-size:12px; margin-top:5px; }
table { width:100%; border-collapse:collapse; }
th, td { text-align:left; padding:11px 9px; border-bottom:1px solid var(--border); vertical-align:top; font-size:13px; }
th { color:var(--muted); font-size:12px; text-transform:uppercase; letter-spacing:.04em; }
.table-wrap { overflow-x:auto; }
.badge { display:inline-block; padding:5px 8px; border-radius:999px; font-size:11px; font-weight:800; text-transform:uppercase; }
.badge-pending { background:#fff3cd; color:#7a5b00; }
.badge-approved,.badge-active { background:#d8f3e3; color:#167044; }
.badge-rejected,.badge-overdue { background:#fde2df; color:#9f2f22; }
.badge-paid { background:#dbeafe; color:#1d4ed8; }
.badge-partial { background:#ede9fe; color:#6d28d9; }
.badge-unpaid { background:#eef2f7; color:#596273; }
.alert { padding:12px 14px; border-radius:10px; margin-bottom:14px; font-weight:600; }
.alert-success { background:#dbf5e4; color:#166534; }
.alert-danger { background:#fde4e4; color:#991b1b; }
.alert-warning { background:#fff3cf; color:#854d0e; }
.login-page { min-height:100vh; display:grid; place-items:center; padding:20px; background:radial-gradient(circle at top left,#d7f4ff,transparent 35%),radial-gradient(circle at bottom right,#dff8df,transparent 35%),var(--bg); }
.login-card { width:min(430px,100%); }
.login-logo { width:58px; height:58px; border-radius:16px; display:grid; place-items:center; color:white; font-weight:900; font-size:24px; background:linear-gradient(135deg,var(--primary),var(--accent)); margin-bottom:14px; }
.muted { color:var(--muted); }
.actions { display:flex; flex-wrap:wrap; gap:8px; }
.kv { display:grid; grid-template-columns:180px 1fr; gap:8px 12px; }
.kv div:nth-child(odd) { color:var(--muted); font-weight:700; }
footer { text-align:center; color:var(--muted); padding:30px 12px; font-size:12px; }
@media (max-width: 900px) { .grid-4,.grid-3 { grid-template-columns:repeat(2,minmax(0,1fr)); } .topbar { align-items:flex-start; } }
@media (max-width: 640px) { .grid-4,.grid-3,.grid-2 { grid-template-columns:1fr; } .topbar { position:static; flex-direction:column; } .page-head { align-items:flex-start; flex-direction:column; } .kv { grid-template-columns:1fr; } }
@media print { .topbar,.no-print,.btn,footer { display:none!important; } body{background:white;} .container{width:100%;margin:0;} .card{box-shadow:none;border:0;} }