:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --text: #17202e;
  --muted: #5e6b7d;
  --border: #dde3ea;
  --brand: #0b5cad;
  --brand-dark: #08447f;
  --nav: #0e1b2c;
  --nav-text: #c7d2e0;
  --ok: #1a7f45;   --ok-bg: #e3f4ea;
  --warn: #9a5b00; --warn-bg: #fdf1dc;
  --bad: #b42318;  --bad-bg: #fde7e5;
  --info: #0b5cad; --info-bg: #e3eefb;
  --radius: 8px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.45rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 0 0 .75rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

/* ---- layout ---- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 228px; flex-shrink: 0; background: var(--nav); color: var(--nav-text);
  padding: 18px 12px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.brand { color: #fff; font-weight: 700; font-size: 1.05rem; padding: 4px 10px 2px; display: block; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { width: 38px; height: 38px; flex-shrink: 0; }
.brand-sub { font-size: .75rem; padding: 0 10px 16px; color: #8696ab; }
.nav-group { font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: #6f8098; padding: 14px 10px 4px; }
.sidebar a.nav {
  display: block; color: var(--nav-text); padding: 7px 10px; border-radius: 6px; font-size: .93rem;
}
.sidebar a.nav:hover { background: #1b2c44; color: #fff; text-decoration: none; }
.sidebar a.nav.active { background: var(--brand); color: #fff; }
.sidebar .user { border-top: 1px solid #22344e; margin-top: 18px; padding: 12px 10px 0; font-size: .85rem; }
.sidebar .user button { background: none; border: 0; color: var(--nav-text); padding: 0; cursor: pointer; font: inherit; }
.main { flex: 1; min-width: 0; padding: 24px 28px 48px; }
.topbar { display: none; }

.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---- cards, grid ---- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat .label { font-size: .8rem; color: var(--muted); }
.stat .value { font-size: 1.5rem; font-weight: 650; font-variant-numeric: tabular-nums; margin-top: 2px; }
.stat .hint { font-size: .78rem; color: var(--muted); }
.stat.alert .value { color: var(--bad); }

dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; }

/* ---- tables ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th { text-align: left; font-weight: 600; color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
tbody tr:hover { background: #f8fafc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.empty { text-align: center; color: var(--muted); padding: 28px; }

/* ---- forms ---- */
.input, select, textarea, input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=file] {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px;
  font: inherit; background: #fff; color: var(--text);
}
.input:focus { outline: 2px solid #9cc3ee; border-color: var(--brand); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 18px; }
.field label { display: block; font-weight: 550; font-size: .88rem; margin-bottom: 4px; }
.field.wide { grid-column: 1 / -1; }
.field .help { font-size: .8rem; color: var(--muted); margin-top: 3px; }
.field .error, .errorlist { color: var(--bad); font-size: .85rem; margin: 4px 0 0; padding: 0; list-style: none; }
.field.check label { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.field ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 4px 12px; }
.field ul label { font-weight: 400; display: flex; gap: 8px; align-items: center; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar .input { width: auto; flex: 1; min-width: 180px; }
.toolbar select.input { flex: 0 0 auto; }
form.inline { display: inline; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 6px;
  border: 1px solid var(--brand); background: var(--brand); color: #fff; font: inherit; font-weight: 550;
  cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--brand); }
.btn.secondary:hover { background: var(--info-bg); }
.btn.danger { background: #fff; color: var(--bad); border-color: #f1b7b1; }
.btn.small { padding: 4px 10px; font-size: .82rem; }
.btn.link { background: none; border: 0; color: var(--brand); padding: 0; font-weight: 500; }

/* ---- badges, alerts, progress ---- */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .78rem; font-weight: 600; white-space: nowrap; }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }
.badge-bad { background: var(--bad-bg); color: var(--bad); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-muted { background: #eef1f4; color: var(--muted); }
.messages { list-style: none; padding: 0; margin: 0 0 16px; }
.msg { padding: 10px 14px; border-radius: 6px; margin-bottom: 8px; border: 1px solid; }
.msg.success { background: var(--ok-bg); border-color: #b5e0c5; color: var(--ok); }
.msg.error { background: var(--bad-bg); border-color: #f4c2bd; color: var(--bad); }
.msg.info, .msg.warning { background: var(--warn-bg); border-color: #f3d9a7; color: var(--warn); }
.alert-box { background: var(--warn-bg); border: 1px solid #f3d9a7; color: #6e4300; border-radius: 6px; padding: 10px 14px; margin-bottom: 14px; }
.alert-box ul { margin: 4px 0 0; padding-left: 18px; }
.ok-box { background: var(--ok-bg); border: 1px solid #b5e0c5; color: var(--ok); border-radius: 6px; padding: 10px 14px; margin-bottom: 14px; }
.bar { height: 8px; background: #e7ecf2; border-radius: 99px; overflow: hidden; min-width: 70px; }
.bar > span { display: block; height: 100%; background: var(--brand); }
.bar.done > span { background: var(--ok); }
.prog { display: grid; grid-template-columns: 110px 1fr 90px; gap: 10px; align-items: center; margin-bottom: 8px; font-size: .9rem; }

/* ---- login ---- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; background: linear-gradient(160deg, #0e1b2c, #0b5cad); }
.login-card { width: 100%; max-width: 380px; background: #fff; border-radius: 12px; padding: 28px; }
.login-card h1 { margin-bottom: 4px; }
.login-card .field { margin-bottom: 12px; }

/* ---- public pages ---- */
.pub-wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.pub-hero { background: linear-gradient(160deg, #0e1b2c, #0b5cad); color: #fff; padding: 40px 0 34px; }
.pub-hero h1 { font-size: 2rem; margin-top: 10px; }
.pub-brand { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.pub-logo { width: 150px; background: #fff; padding: 8px; border-radius: 12px; }
@media (max-width: 860px) { .pub-logo { width: 110px; } .pub-hero h1 { font-size: 1.5rem; } }
.pub-hero p { margin: 6px 0 0; color: #d6e4f5; }

/* ---- print documents (receipt, certificate) ---- */
.doc-actions { max-width: 800px; margin: 16px auto; display: flex; gap: 8px; padding: 0 16px; }
.doc { max-width: 800px; margin: 0 auto 32px; background: #fff; padding: 40px; border: 1px solid var(--border); }
.doc-head { display: flex; justify-content: space-between; gap: 16px; border-bottom: 2px solid var(--brand); padding-bottom: 14px; margin-bottom: 18px; }
.doc-head img { max-height: 64px; }
.cert { text-align: center; border: 10px double var(--brand); padding: 48px 40px; }
.cert h1 { font-size: 2rem; letter-spacing: .04em; color: var(--brand-dark); margin: 10px 0; }
.cert .name { font-size: 1.8rem; font-weight: 700; margin: 12px 0; border-bottom: 1px solid var(--border); display: inline-block; padding: 0 24px 6px; }
.cert .sign { display: flex; justify-content: space-between; margin-top: 56px; }
.cert .sign div { border-top: 1px solid var(--text); padding-top: 6px; width: 200px; font-size: .9rem; }
@media print {
  body { background: #fff; }
  .doc-actions, .sidebar, .topbar { display: none !important; }
  .doc { border: 0; margin: 0; padding: 0; max-width: none; }
}

/* ---- mobile ---- */
@media (max-width: 860px) {
  .shell { display: block; }
  .topbar {
    display: flex; align-items: center; justify-content: space-between; background: var(--nav); color: #fff;
    padding: 10px 16px; position: sticky; top: 0; z-index: 20;
  }
  .topbar button { background: none; border: 1px solid #33475f; color: #fff; border-radius: 6px; padding: 5px 10px; font: inherit; }
  .sidebar { display: none; width: 100%; height: auto; position: static; }
  .sidebar.open { display: block; }
  .main { padding: 16px; }
  .grid-2, .grid-3, .form-grid { grid-template-columns: 1fr; }
  .doc { padding: 20px; }
  .cert { padding: 24px 12px; }
  .prog { grid-template-columns: 90px 1fr 70px; }
}