:root {
  --navy: #0b2a67;
  --blue: #1457b8;
  --yellow: #d7ef00;
  --bg: #f3f6fb;
  --card: #ffffff;
  --text: #172033;
  --muted: #6c7588;
  --border: #dfe5ef;
  --danger: #bd1e2d;
  --success: #137a42;
  --warning: #a56b00;
  --shadow: 0 10px 24px rgba(14, 36, 74, .08);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.app-shell { min-height: 100vh; display: flex; }
.sidebar { width: 260px; position: fixed; inset: 0 auto 0 0; background: var(--navy); color: #fff; display: flex; flex-direction: column; z-index: 30; overflow-y: auto; }
.brand { display: flex; gap: 12px; align-items: center; padding: 22px 18px; border-bottom: 1px solid rgba(255,255,255,.14); }
.brand-mark { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; background: var(--yellow); color: var(--navy); font-weight: 900; }
.brand strong, .brand small { display: block; }
.brand small { color: #cbd8ef; margin-top: 3px; }
.sidebar nav { padding: 14px 10px; flex: 1; }
.sidebar nav a { display: block; padding: 11px 13px; border-radius: 9px; color: #dce7fb; margin: 2px 0; }
.sidebar nav a:hover, .sidebar nav a.active { background: rgba(215,239,0,.18); color: #fff; border-left: 4px solid var(--yellow); padding-left: 9px; }
.nav-label { font-size: 11px; text-transform: uppercase; letter-spacing: .12em; color: #95add5; margin: 18px 12px 7px; }
.sidebar-user { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,.14); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.sidebar-user strong, .sidebar-user small { display: block; }
.sidebar-user small { color: #b9cae7; margin-top: 3px; }
.sidebar-user a { color: var(--yellow); font-weight: 700; }
.main { margin-left: 260px; width: calc(100% - 260px); }
.topbar { min-height: 78px; background: #fff; border-bottom: 1px solid var(--border); padding: 14px 24px; display: flex; align-items: center; gap: 15px; position: sticky; top: 0; z-index: 20; }
.topbar h1 { margin: 0; font-size: 23px; }
.topbar p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.menu-btn { display: none; border: 0; background: var(--navy); color: #fff; border-radius: 8px; padding: 9px 11px; }
.content { padding: 24px; }
.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)); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); padding: 18px; margin-bottom: 18px; }
.card h2, .card h3 { margin-top: 0; }
.stat { position: relative; overflow: hidden; }
.stat::after { content: ''; position: absolute; width: 90px; height: 90px; border-radius: 50%; background: rgba(20,87,184,.08); right: -25px; top: -25px; }
.stat .label { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 27px; font-weight: 800; margin: 8px 0 4px; }
.stat .sub { color: var(--muted); font-size: 12px; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; justify-content: space-between; margin-bottom: 14px; }
.toolbar-left, .toolbar-right { display: flex; gap: 9px; flex-wrap: wrap; align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 0; border-radius: 9px; padding: 10px 14px; cursor: pointer; font-weight: 700; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: #f2b400; color: #2d2600; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-secondary { background: #e8edf5; color: #253147; }
.btn-sm { padding: 7px 10px; font-size: 12px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 11px; }
table { width: 100%; border-collapse: collapse; min-width: 760px; background: #fff; }
th, td { padding: 11px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: #eef3fb; color: #33405a; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
tr:last-child td { border-bottom: 0; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.form-group { margin-bottom: 13px; }
label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 6px; }
input, select, textarea { width: 100%; border: 1px solid #cfd7e5; border-radius: 9px; padding: 10px 11px; background: #fff; color: var(--text); }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(20,87,184,.18); border-color: var(--blue); }
textarea { min-height: 90px; resize: vertical; }
.help { font-size: 12px; color: var(--muted); margin-top: 5px; }
.alert { padding: 12px 14px; border-radius: 10px; margin-bottom: 14px; font-weight: 600; }
.alert-success { background: #e6f6ed; color: #0b6635; border: 1px solid #bde7cd; }
.alert-danger { background: #fdebee; color: #9d1825; border: 1px solid #f4c3ca; }
.alert-warning { background: #fff6da; color: #7d5500; border: 1px solid #eed995; }
.badge { display: inline-block; border-radius: 999px; padding: 5px 9px; font-size: 11px; font-weight: 800; }
.badge-success { background: #def4e8; color: #0c6a39; }
.badge-danger { background: #fde4e8; color: #a11928; }
.badge-warning { background: #fff1c4; color: #806000; }
.badge-info { background: #e0efff; color: #14539b; }
.badge-dark { background: #e5e9f0; color: #344056; }
.image-thumb { width: 58px; height: 58px; border-radius: 8px; object-fit: cover; border: 1px solid var(--border); }
.kpi-good { color: var(--success); font-weight: 800; }
.kpi-bad { color: var(--danger); font-weight: 800; }
.progress { height: 10px; background: #e9edf4; border-radius: 999px; overflow: hidden; }
.progress span { display: block; height: 100%; background: var(--blue); }
.dynamic-row { display: grid; grid-template-columns: 2fr 1fr 1fr auto; gap: 10px; align-items: end; padding: 10px; background: #f7f9fc; border: 1px dashed #ccd5e3; border-radius: 10px; margin-bottom: 8px; }
.invoice { max-width: 850px; margin: 0 auto; background: #fff; padding: 30px; border: 1px solid var(--border); }
.invoice-head { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.invoice-brand { font-size: 27px; font-weight: 900; color: var(--navy); }
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: linear-gradient(135deg, #071c49, #1258ba); }
.login-card { width: min(430px, 100%); background: #fff; border-radius: 20px; padding: 30px; box-shadow: 0 30px 80px rgba(0,0,0,.25); }
.login-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.login-logo .brand-mark { flex: 0 0 auto; }
.empty { padding: 30px; text-align: center; color: var(--muted); }
@media (max-width: 1100px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 760px) {
  .sidebar { transform: translateX(-100%); transition: .2s; }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; width: 100%; }
  .menu-btn { display: inline-block; }
  .content { padding: 14px; }
  .grid-2, .grid-3, .grid-4, .form-grid, .form-grid-3 { grid-template-columns: 1fr; }
  .dynamic-row { grid-template-columns: 1fr 1fr; }
  .topbar { padding: 12px 14px; }
  .topbar h1 { font-size: 19px; }
}
@media print {
  .sidebar, .topbar, .no-print, .alert { display: none !important; }
  .main { margin: 0; width: 100%; }
  .content { padding: 0; }
  body { background: #fff; }
  .card, .invoice { box-shadow: none; border: 0; }
}