:root {
  --blue: #1f4e79; --blue-dark: #163a5c; --light: #d9e2f3; --bg: #f4f6f9;
  --grey: #6b7280; --border: #dde2e8; --danger: #b91c1c; --success: #15803d;
  --warning: #b45309; --info: #0369a1;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", Arial, sans-serif; font-size: 14.5px; color: #1a202c; background: var(--bg); }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.topnav { background: var(--blue); color: #fff; }
.nav-inner { max-width: 1250px; margin: 0 auto; display: flex; align-items: center; gap: 18px; padding: 0 16px; flex-wrap: wrap; }
.brand img { height: 34px; background: #fff; border-radius: 4px; padding: 2px 6px; margin: 8px 0; display: block; }
.nav-links { display: flex; gap: 2px; flex: 1; }
.nav-links a { color: #dbe6f5; padding: 14px 13px; font-weight: 500; }
.nav-links a:hover { background: var(--blue-dark); text-decoration: none; color: #fff; }
.nav-links a.active { background: var(--blue-dark); color: #fff; box-shadow: inset 0 -3px 0 #fff; }
.nav-user { display: flex; align-items: center; gap: 12px; font-size: 13px; color: #c8d6ea; }
.nav-user a { color: #fff; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 22px; }

.container { max-width: 1250px; margin: 22px auto; padding: 0 16px; }
.footer { text-align: center; color: var(--grey); font-size: 12px; padding: 24px 0 34px; }

h1 { font-size: 22px; color: var(--blue); margin: 0 0 16px; }
h2 { font-size: 17px; color: var(--blue); margin: 24px 0 10px; }

.card { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 18px 20px; margin-bottom: 18px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat { background: #fff; border: 1px solid var(--border); border-left: 4px solid var(--blue); border-radius: 8px; padding: 14px 16px; }
.stat .num { font-size: 26px; font-weight: 700; color: var(--blue); }
.stat .lbl { color: var(--grey); font-size: 12.5px; text-transform: uppercase; letter-spacing: .4px; }

table.grid { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
table.grid th { background: var(--blue); color: #fff; text-align: left; padding: 9px 10px; font-size: 13px; }
table.grid td { padding: 8px 10px; border-top: 1px solid var(--border); vertical-align: top; }
table.grid tr:nth-child(even) td { background: #f8fafc; }
table.grid tr:hover td { background: #eef4fb; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 10px; font-size: 11.5px; font-weight: 600; color: #fff; }
.text-bg-primary { background: var(--blue); } .text-bg-info { background: var(--info); }
.text-bg-success { background: var(--success); } .text-bg-danger { background: var(--danger); }
.text-bg-warning { background: var(--warning); } .text-bg-secondary { background: var(--grey); }
.text-bg-dark { background: #374151; }

.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; border: 1px solid transparent; }
.alert-success { background: #ecfdf5; color: #065f46; border-color: #a7f3d0; }
.alert-danger { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.alert-info { background: #eff6ff; color: #1e40af; border-color: #bfdbfe; }

form .row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
form .col { flex: 1; min-width: 180px; }
label { display: block; font-size: 12.5px; font-weight: 600; color: #374151; margin-bottom: 4px; }
input[type=text], input[type=email], input[type=password], input[type=date], input[type=number],
select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid #cbd5e1; border-radius: 6px;
  font-family: inherit; font-size: 14px; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid #93b6dc; border-color: var(--blue); }
textarea { min-height: 74px; resize: vertical; }

.btn { display: inline-block; padding: 8px 16px; border-radius: 6px; border: 1px solid transparent;
       font-size: 14px; font-weight: 600; cursor: pointer; background: var(--blue); color: #fff; }
.btn:hover { background: var(--blue-dark); text-decoration: none; }
.btn-outline { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-outline:hover { background: var(--light); }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12.5px; }
.btn-success { background: var(--success); }

.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar form { display: flex; gap: 8px; align-items: center; }
.toolbar input[type=text] { width: 240px; }
.toolbar .spacer { flex: 1; }

.login-box { max-width: 380px; margin: 9vh auto; background: #fff; border: 1px solid var(--border);
             border-radius: 10px; padding: 30px 32px; box-shadow: 0 8px 30px rgba(0,0,0,.07); }
.login-box img { max-width: 240px; display: block; margin: 0 auto 18px; }
body.bare { background: linear-gradient(160deg, #ecf2f9, #f7f9fc); }

.items-table td { padding: 4px 4px; border-top: none; }
.items-table input { padding: 6px 8px; }
.muted { color: var(--grey); font-size: 12.5px; }
.right { text-align: right; }
.totals { max-width: 380px; margin-left: auto; }
.totals td { padding: 5px 8px; }
.totals .net { font-weight: 700; font-size: 16px; color: var(--blue); background: var(--light); }

@media (max-width: 860px) {
  .nav-toggle { display: block; margin-left: auto; }
  .nav-links, .nav-user { display: none; width: 100%; flex-direction: column; align-items: stretch; }
  body.nav-open .nav-links, body.nav-open .nav-user { display: flex; padding-bottom: 10px; }
  .nav-links a { padding: 10px 12px; }
  .toolbar input[type=text] { width: 100%; }
  table.grid { display: block; overflow-x: auto; }
}