:root {
  color-scheme: light;
  --ink: #172435;
  --muted: #64748b;
  --line: #e4e9ef;
  --panel: #fff;
  --canvas: #f5f7fa;
  --orange: #f36c21;
  --orange-dark: #d95712;
  --green: #177a52;
  --red: #b42318;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--canvas); }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
.topbar { display:flex; align-items:center; justify-content:space-between; gap:1rem; padding:.9rem clamp(1rem,4vw,3rem); background:#142235; color:#fff; }
.brand { display:flex; align-items:center; gap:.65rem; text-decoration:none; font-weight:750; letter-spacing:.02em; }
.brand-mark { display:grid; place-items:center; width:2.2rem; height:2.2rem; border-radius:.65rem; background:var(--orange); font-weight:800; }
.top-user { display:flex; align-items:center; gap:.8rem; color:#dce4ed; font-size:.9rem; }
.top-user form { margin:0; }
.layout { display:grid; grid-template-columns:240px minmax(0,1fr); min-height:calc(100vh - 58px); max-width:1680px; margin:auto; }
.sidebar { padding:1.2rem .85rem; background:#fff; border-right:1px solid var(--line); }
.nav-group { margin:0 0 1rem; }
.nav-label { margin:.4rem .7rem; color:#8a96a5; font-size:.7rem; font-weight:750; letter-spacing:.12em; text-transform:uppercase; }
.nav-link { display:block; padding:.62rem .72rem; margin:.14rem 0; border-radius:.55rem; color:#465468; text-decoration:none; font-size:.92rem; }
.nav-link:hover,.nav-link.active { background:#fff0e7; color:#b64a10; font-weight:650; }
main { min-width:0; padding:clamp(1rem,3vw,2rem); }
.page-head { display:flex; justify-content:space-between; align-items:flex-start; gap:1rem; margin-bottom:1.4rem; }
h1 { margin:0 0 .35rem; font-size:clamp(1.45rem,3vw,2rem); letter-spacing:-.03em; }
.subtitle { margin:0; color:var(--muted); }
.cards { display:grid; grid-template-columns:repeat(auto-fit,minmax(175px,1fr)); gap:1rem; margin:1rem 0 1.4rem; }
.card,.panel { background:var(--panel); border:1px solid var(--line); border-radius:.8rem; box-shadow:0 3px 12px #14223508; }
.card { padding:1rem 1.1rem; }
.card-label { color:var(--muted); font-size:.83rem; }
.card-value { display:block; margin-top:.42rem; font-size:1.55rem; font-weight:750; }
.panel { padding:1.15rem; margin:1rem 0; }
.panel h2 { margin:0 0 1rem; font-size:1.08rem; }
.form-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.9rem 1rem; max-width:860px; }
.field { display:flex; flex-direction:column; gap:.4rem; }
.field.full { grid-column:1/-1; }
.field label { font-size:.86rem; font-weight:650; }
input,select,textarea { width:100%; padding:.68rem .72rem; border:1px solid #ccd5df; border-radius:.48rem; color:var(--ink); background:#fff; }
input:focus,select:focus,textarea:focus { outline:3px solid #f36c2130; border-color:var(--orange); }
textarea { min-height:5rem; resize:vertical; }
.button { display:inline-flex; align-items:center; justify-content:center; gap:.4rem; padding:.68rem 1rem; border:0; border-radius:.5rem; background:var(--orange); color:white; text-decoration:none; font-weight:700; cursor:pointer; }
.button:hover { background:var(--orange-dark); }
.button.secondary { background:#eef2f6; color:#26364a; }
.button.danger { background:#fff0ee; color:var(--red); }
.button-row { display:flex; flex-wrap:wrap; gap:.55rem; align-items:center; margin-top:1rem; }
.alert { padding:.8rem 1rem; margin:0 0 1rem; border-radius:.55rem; background:#e9f6ef; color:#17613f; }
.alert.error { background:#fff0ee; color:#a22b23; }
.table-wrap { overflow:auto; width:100%; }
table { border-collapse:collapse; width:100%; font-size:.87rem; white-space:nowrap; }
th,td { padding:.68rem .72rem; text-align:left; border-bottom:1px solid var(--line); }
th { color:#59687a; background:#f8fafc; font-size:.75rem; letter-spacing:.04em; text-transform:uppercase; }
tbody tr:hover { background:#fcfdff; }
.pill { display:inline-block; padding:.2rem .52rem; border-radius:999px; font-size:.76rem; font-weight:700; background:#e8f5ee; color:#17613f; }
.pill.off,.pill.denied { background:#fff0ee; color:#a22b23; }
.code-result { padding:1.25rem; margin:1rem 0; border:1px solid #f7c5a6; border-radius:.7rem; background:#fff8f3; }
.code-result strong { display:block; margin:.35rem 0; font:800 clamp(1.4rem,5vw,2.2rem) ui-monospace,Consolas,monospace; letter-spacing:.11em; }
.filter-row { display:flex; gap:.6rem; flex-wrap:wrap; align-items:end; margin:0 0 1rem; }
.filter-row .field { min-width:145px; }
.login-shell { display:grid; place-items:center; min-height:100vh; padding:1rem; background:radial-gradient(circle at top right,#ffe1cf,transparent 45%),var(--canvas); }
.login-card { width:min(100%,430px); padding:2rem; background:#fff; border:1px solid var(--line); border-radius:1rem; box-shadow:0 15px 50px #14223516; }
.login-card .brand { color:var(--ink); margin-bottom:1.5rem; }
.muted { color:var(--muted); }
.empty { color:var(--muted); padding:1rem 0; }
.install-hint { display:none; }
@media(max-width:760px) {
  .layout { display:block; }
  .sidebar { display:flex; gap:.4rem; overflow-x:auto; padding:.55rem; border-right:0; border-bottom:1px solid var(--line); }
  .nav-group { display:flex; gap:.2rem; margin:0; }
  .nav-label { display:none; }
  .nav-link { white-space:nowrap; padding:.55rem .65rem; font-size:.82rem; }
  .topbar { padding:.7rem .9rem; }
  .top-user { font-size:.78rem; }
}
@media(max-width:520px) {
  .form-grid { grid-template-columns:1fr; }
  .field.full { grid-column:auto; }
  main { padding:1rem .75rem; }
  .panel { padding:.8rem; }
}