/* PoolPro — professional stylesheet (system fonts only, no external requests) */
:root {
  --navy: #0b2545; --blue: #0e6ba8; --blue-light: #e8f3fa; --teal: #0e9594;
  --green: #1e7d32; --amber: #b26a00; --red: #b3261e; --grey: #5f6b7a;
  --line: #dbe4ec; --bg: #f4f7fa; --card: #ffffff; --text: #1c2b3a;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.45; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 24px; margin: 0 0 4px; color: var(--navy); }
h2 { font-size: 19px; margin: 22px 0 10px; color: var(--navy); }
h3 { font-size: 16px; margin: 16px 0 8px; color: var(--navy); }
p { margin: 6px 0; }
.muted { color: var(--grey); font-size: 13px; }
.small { font-size: 13px; }
.shell { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--navy); color: #fff; padding: 18px 14px; flex-shrink: 0; display: flex; flex-direction: column; }
.brand { font-size: 20px; font-weight: 700; }
.brand-sub { font-size: 12px; color: #9db8cc; margin: 2px 0 18px; }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar nav a { color: #d7e5f0; padding: 9px 10px; border-radius: 8px; font-size: 14.5px; }
.sidebar nav a:hover { background: #14365e; text-decoration: none; }
.sidebar nav a.active { background: var(--blue); color: #fff; font-weight: 600; }
.side-user { margin-top: auto; padding-top: 16px; border-top: 1px solid #1d4568; font-size: 13px; }
.side-user-name { font-weight: 600; }
.side-user-role { color: #9db8cc; font-size: 12px; }
.main { flex: 1; padding: 22px 26px 40px; max-width: 1180px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 14px 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.card .label { font-size: 12px; color: var(--grey); text-transform: uppercase; letter-spacing: .04em; }
.card .value { font-size: 26px; font-weight: 700; color: var(--navy); margin-top: 4px; }
.card .sub { font-size: 12.5px; color: var(--grey); margin-top: 2px; }
.card.warn .value { color: var(--amber); }
.card.bad .value { color: var(--red); }
.card.good .value { color: var(--green); }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 14px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--grey); border-bottom: 2px solid var(--line); padding: 8px 8px; }
td { border-bottom: 1px solid #edf1f5; padding: 9px 8px; vertical-align: top; }
tr:hover td { background: #f8fbfd; }
.btn { display: inline-block; background: var(--blue); color: #fff; border: none; border-radius: 8px; padding: 9px 16px; font-size: 14px; font-weight: 600; cursor: pointer; }
.btn:hover { background: #0b5a8f; text-decoration: none; }
.btn-green { background: var(--green); }
.btn-green:hover { background: #166127; }
.btn-danger { background: var(--red); }
.btn-danger:hover { background: #8f1d17; }
.btn-ghost { background: transparent; color: var(--blue); border: 1px solid var(--blue); }
.btn-ghost:hover { background: var(--blue-light); }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-big { padding: 14px 22px; font-size: 16px; }
input, select, textarea { width: 100%; padding: 9px 10px; border: 1px solid #c4d0db; border-radius: 8px; font-size: 14.5px; background: #fff; font-family: inherit; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue); border-color: var(--blue); }
label { display: block; font-size: 13px; font-weight: 600; color: var(--navy); margin: 12px 0 4px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 16px; }
.form-grid .full { grid-column: 1 / -1; }
.check-row { display: flex; gap: 8px; align-items: center; margin: 6px 0; }
.check-row input { width: auto; }
.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-green { background: #e2f3e5; color: var(--green); }
.badge-amber { background: #fdf0d3; color: var(--amber); }
.badge-red { background: #fbe3e1; color: var(--red); }
.badge-blue { background: var(--blue-light); color: var(--blue); }
.badge-grey { background: #eef1f4; color: var(--grey); }
.flash { padding: 11px 14px; border-radius: 10px; margin: 0 0 12px; font-size: 14px; }
.flash.ok { background: #e2f3e5; color: #14521f; border: 1px solid #bfe3c6; }
.flash.err { background: #fbe3e1; color: #7c1a14; border: 1px solid #f3c1bd; }
.flash.info { background: var(--blue-light); color: #0b4a6b; border: 1px solid #bcdcf0; }
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: linear-gradient(160deg, var(--navy), var(--blue)); }
.login-box { background: #fff; border-radius: 16px; padding: 30px 32px; width: 380px; max-width: 92vw; box-shadow: 0 12px 40px rgba(0,0,0,.25); }
.login-box h1 { text-align: center; }
.login-box .sub { text-align: center; color: var(--grey); margin-bottom: 18px; }
.tabs { display: flex; gap: 6px; margin: 12px 0; flex-wrap: wrap; }
.tabs a { padding: 7px 13px; border-radius: 20px; background: #eef1f4; color: var(--navy); font-size: 13.5px; font-weight: 600; }
.tabs a.active { background: var(--navy); color: #fff; }
.kv { display: grid; grid-template-columns: 180px 1fr; gap: 6px 12px; font-size: 14px; }
.kv dt { color: var(--grey); }
.kv dd { margin: 0; }
.alert-box { border-left: 4px solid var(--amber); background: #fff8e6; padding: 10px 14px; border-radius: 8px; margin: 10px 0; }
.alert-box.red { border-color: var(--red); background: #fdf0ef; }
.alert-box.green { border-color: var(--green); background: #eef7f0; }
.progress { height: 8px; background: #e6ebf0; border-radius: 6px; overflow: hidden; }
.progress > div { height: 100%; background: var(--teal); }
.stop { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin: 10px 0; background: #fff; }
.stop.done { opacity: .75; }
.stop .addr { font-weight: 700; font-size: 16px; }
.access { background: #fff8e6; border: 1px solid #f0dc9a; border-radius: 8px; padding: 10px 12px; margin: 8px 0; font-size: 14px; }
@media (max-width: 760px) {
  .shell { flex-direction: column; }
  .sidebar { width: 100%; padding: 12px; }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; }
  .main { padding: 14px; }
  .kv { grid-template-columns: 1fr; }
}