:root {
  --bg: #f3f7fa;
  --surface: #ffffff;
  --ink: #16303d;
  --muted: #5f7482;
  --line: #d9e3ea;
  --brand: #0a6e9e;
  --brand-dark: #07506f;
  --side: #0b2a3a;
  --good: #1b7f4c;
  --good-bg: #dff3e8;
  --bad: #b42318;
  --bad-bg: #fde4e1;
  --warn: #9a6200;
  --warn-bg: #fdf0d5;
  --info-bg: #e2eef6;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.45;
}
h1 { font-size: 1.6rem; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
h3 { font-size: 1rem; margin: 1.25rem 0 .5rem; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
small { font-size: .8em; }
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }
.spacer { flex: 1; }

/* ---------- layout ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px; flex-shrink: 0; background: var(--side); color: #dbe9f1;
  display: flex; flex-direction: column; padding: 1rem .75rem; position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; gap: .6rem; align-items: center; padding: .25rem .5rem 1rem; }
.brand strong { display: block; color: #fff; font-size: 1.1rem; }
.brand small { color: #8fb0c3; }
.drop { font-size: 1.6rem; }
.drop.big { font-size: 2.6rem; }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.sidebar nav a {
  color: #dbe9f1; padding: .55rem .75rem; border-radius: 8px; display: block;
}
.sidebar nav a:hover { background: rgba(255,255,255,.08); text-decoration: none; }
.sidebar nav a.active { background: var(--brand); color: #fff; }
.userbox { border-top: 1px solid rgba(255,255,255,.12); padding: .75rem .5rem 0; font-size: .9rem; }
.userbox .who { color: #fff; font-weight: 600; }
.userbox .role { color: #8fb0c3; margin-bottom: .4rem; }
.userbox a { color: #9fd0ea; display: block; margin-bottom: .25rem; }
.userbox form { margin: 0; }
.userbox .link { color: #9fd0ea; }
.content { flex: 1; min-width: 0; padding: 1.5rem 2rem 3rem; }
.page { max-width: 1200px; margin: 0 auto; }
.page.narrow { max-width: 560px; margin: 0; }

/* ---------- cards & tables ---------- */
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.25rem; margin: 1rem 0;
}
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; margin: 1rem 0; }
.cards .card { margin: 0; }
.stat { display: flex; flex-direction: column; color: var(--ink); }
.stat:hover { text-decoration: none; border-color: var(--brand); }
.stat .n { font-size: 2rem; font-weight: 700; line-height: 1.1; }
.stat.good .n { color: var(--good); }
.stat.bad .n { color: var(--bad); }
.stat.warn .n { color: var(--warn); }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 1rem; }
.grid2 .card { margin: 1rem 0; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
tbody tr:hover { background: #f8fbfd; }
tr.inactive td { color: var(--muted); }
td.fail, .fail { color: var(--bad); font-weight: 700; }
.table-scroll { overflow-x: auto; }

/* ---------- forms ---------- */
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .6rem; }
label.inline { display: inline-flex; align-items: center; gap: .4rem; margin: 0; }
label.check { display: inline-flex; align-items: center; gap: .45rem; color: var(--ink); font-size: .95rem; margin: 0 1rem .4rem 0; }
input[type=text], input[type=search], input[type=password], input[type=number],
input[type=date], input[type=datetime-local], select {
  width: 100%; padding: .5rem .6rem; border: 1px solid #b9c9d3; border-radius: 8px;
  font: inherit; color: var(--ink); background: #fff; margin-top: .2rem;
}
td input, td select, .filters input, .filters select, .actions select { margin-top: 0; }
input.num { width: 110px; }
input:focus, select:focus { outline: 2px solid #8cc6e3; border-color: var(--brand); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 0 1rem; align-items: end; }
.form-grid .span2 { grid-column: span 2; }
.filters { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; margin-bottom: 1rem; }
.filters input[type=search] { width: 260px; }
.filters select { width: auto; }
.filters input[type=date] { width: auto; }
.actions { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; margin-top: 1rem; }
.actions select { width: auto; }

.btn {
  display: inline-block; padding: .5rem 1rem; border-radius: 8px; border: 1px solid #b9c9d3;
  background: #fff; color: var(--ink); font: inherit; cursor: pointer;
}
.btn:hover { background: #eef4f8; text-decoration: none; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-dark); }
.btn.danger { background: #fff; color: var(--bad); border-color: var(--bad); }
.btn.danger:hover { background: var(--bad-bg); }
.btn.small { padding: .25rem .6rem; font-size: .85rem; }
.btn.wide { width: 100%; margin-top: .5rem; }
button.link { background: none; border: none; color: var(--brand); cursor: pointer; font: inherit; padding: 0 .4rem 0 0; }
button.link:hover { text-decoration: underline; }
button.link.danger { color: var(--bad); }

.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.toolbar-right { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }

.alert { padding: .7rem 1rem; border-radius: 8px; margin: .75rem 0; }
.alert.ok { background: var(--good-bg); color: var(--good); }
.alert.err { background: var(--bad-bg); color: var(--bad); }

.testgroup { border: 1px solid var(--line); border-radius: 8px; padding: .6rem .8rem; margin-bottom: .6rem; }
.testgroup-head { display: flex; gap: .8rem; align-items: baseline; margin-bottom: .3rem; }
.checks { display: flex; flex-wrap: wrap; }

.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: .75rem 1.5rem; margin: 0; }
.facts dt { font-size: .75rem; text-transform: uppercase; color: var(--muted); letter-spacing: .04em; }
.facts dd { margin: 0; }
.facts .span2 { grid-column: 1 / -1; }

/* ---------- badges ---------- */
.badge { display: inline-block; padding: .12rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 600; background: var(--info-bg); color: var(--brand-dark); white-space: nowrap; }
.b-approved, .b-pass, .b-compliant, .b-ok { background: var(--good-bg); color: var(--good); }
.b-rejected, .b-fail, .b-non-compliant, .b-calibration-overdue, .b-out-of-service { background: var(--bad-bg); color: var(--bad); }
.b-pending-review, .b-due-soon, .b-incomplete { background: var(--warn-bg); color: var(--warn); }
.b-pending, .b-no-tests, .b-reported, .b-registered { background: #eceff2; color: #4a5b66; }

/* ---------- login ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1rem; background: linear-gradient(160deg, #0b2a3a, #0a6e9e); }
.login-card { background: #fff; border-radius: 14px; padding: 2rem; width: 100%; max-width: 380px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.login-head { text-align: center; margin-bottom: 1.25rem; }
.login-head h1 { margin: .25rem 0 0; }
.login-head p { margin: 0; color: var(--muted); }

/* ---------- certificate ---------- */
.certificate { background: #fff; border: 1px solid var(--line); padding: 2rem 2.5rem; max-width: 900px; margin: 1rem auto; }
.certificate header { display: flex; justify-content: space-between; gap: 1rem; border-bottom: 2px solid var(--ink); padding-bottom: .75rem; margin-bottom: 1rem; }
.certificate h1 { font-size: 1.5rem; }
.cert-lab { text-align: right; font-size: .9rem; }
.cert-info th { width: 18%; text-transform: none; font-size: .85rem; }
.cert-info td { width: 32%; }
.cert-results { margin-top: 1.25rem; }
.cert-conclusion { margin: 1.25rem 0; padding: .75rem 1rem; background: var(--info-bg); border-radius: 8px; }
.certificate footer { margin-top: 2rem; font-size: .9rem; }

@media (max-width: 800px) {
  .shell { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; }
  .content { padding: 1rem; }
}

@media print {
  .no-print, .sidebar { display: none !important; }
  body { background: #fff; }
  .content { padding: 0; }
  .certificate { border: none; padding: 0; max-width: none; margin: 0; }
}