/* PS-SPC - single stylesheet. Mobile-first, print-aware.
   Colour roles from the validated dataviz reference palette; brand accent from the PS logo. */
:root{
  color-scheme: light;
  --brand:#02ADF2;            /* PS logo blue */
  --brand-dark:#0272a3;
  --brand-deep:#02486b;
  --brand-wash:#e8f6fd;
  --surface-1:#ffffff;
  --page:#eef4f8;
  --text-1:#0b1720;
  --text-2:#52514e;
  --muted:#898781;
  --grid:#e3e6e4;
  --axis:#c3c2b7;
  --series-1:#2a78d6;
  --good:#0ca30c;  --good-bg:#e8f7e8;
  --warn:#a86a00;  --warn-bg:#fdf3dc;
  --crit:#d03b3b;  --crit-bg:#fbe9e9;
  --band:rgba(42,120,214,0.07);
  --ring:rgba(2,72,107,0.12);
  --shadow:0 1px 2px rgba(2,72,107,.06), 0 4px 14px rgba(2,72,107,.06);
  --radius:12px;
  font-size:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--page); color:var(--text-1); line-height:1.45;
  -webkit-text-size-adjust:100%;
}
a{color:var(--brand-dark)}
h1,h2,h3{margin:.2em 0 .45em; letter-spacing:-.01em}
h1{font-size:1.3rem}
h1::after{content:""; display:block; width:44px; height:3px; border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(2,173,242,.25)); margin-top:5px}
h2{font-size:1.06rem} h3{font-size:.95rem}

/* the PS-logo stripe motif, used as thin accent bars */
.stripes, .topbar::after{
  background:repeating-linear-gradient(180deg,
    var(--brand) 0 2px, transparent 2px 4px);
}

/* ---------- header ---------- */
.topbar{
  display:flex; align-items:center; gap:12px;
  background:linear-gradient(180deg,#ffffff, #f4fbff);
  border-bottom:1px solid var(--ring);
  box-shadow:0 1px 6px rgba(2,72,107,.08);
  padding:8px 14px; position:sticky; top:0; z-index:50;
}
.topbar::after{content:""; position:absolute; left:0; right:0; bottom:-1px; height:3px;
  background:linear-gradient(90deg, var(--brand) 0 55%, #7fd6fa 55% 78%, #c8ecfd 78% 100%)}
.topbar .logo{height:44px; width:auto; display:block; flex:0 0 auto;
  border-radius:4px}
.topbar .co{min-width:0}
.topbar .co .name{font-weight:800; font-size:.95rem; letter-spacing:.02em;
  color:var(--brand-deep);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.topbar .co .sub{font-size:.62rem; color:var(--text-2); white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.topbar .spacer{flex:1}
.topbar .who{font-size:.75rem; color:var(--text-2); text-align:right; white-space:nowrap}
.topbar .who b{color:var(--text-1)}

/* ---------- nav ---------- */
.nav{
  display:flex; gap:4px; background:var(--surface-1);
  border-bottom:1px solid var(--grid); overflow-x:auto;
  position:sticky; top:63px; z-index:49; padding:6px 8px;
  scrollbar-width:none;
}
.nav::-webkit-scrollbar{display:none}
.nav a{
  padding:8px 14px; text-decoration:none; color:var(--text-2);
  font-size:.85rem; font-weight:600; border-radius:8px; white-space:nowrap;
  transition:background .12s,color .12s;
}
.nav a.active{color:#fff; background:linear-gradient(180deg,var(--brand),#0295d1)}
.nav a:not(.active):hover{background:var(--brand-wash); color:var(--brand-dark)}

/* ---------- layout ---------- */
.wrap{max-width:1100px; margin:0 auto; padding:16px 14px 40px}
.card{
  background:var(--surface-1); border:1px solid var(--ring); border-radius:var(--radius);
  padding:16px 18px; margin-bottom:16px; box-shadow:var(--shadow);
}
.card>h2:first-child,.card>h3:first-child{margin-top:0}
.grid2{display:grid; grid-template-columns:1fr; gap:16px}
.grid3{display:grid; grid-template-columns:1fr; gap:12px}
.grid4{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.grid2>*,.grid3>*,.grid4>*{min-width:0}
@media(min-width:760px){
  .grid2{grid-template-columns:1fr 1fr}
  .grid3{grid-template-columns:1fr 1fr 1fr}
  .grid4{grid-template-columns:repeat(4,1fr)}
}
.card{max-width:100%; overflow-x:hidden}
.card .tbl-wrap{max-width:100%}

/* ---------- stat tiles ---------- */
.tile{
  background:linear-gradient(180deg,#ffffff,#f7fbfe);
  border:1px solid var(--ring); border-radius:var(--radius);
  padding:12px 16px; position:relative; overflow:hidden; box-shadow:var(--shadow);
}
.tile::before{content:""; position:absolute; left:0; top:0; bottom:0; width:4px;
  background:linear-gradient(180deg,var(--brand),#7fd6fa)}
.tile .v{font-size:1.7rem; font-weight:800; color:var(--brand-deep); line-height:1.15}
.tile .l{font-size:.7rem; color:var(--text-2); text-transform:uppercase; letter-spacing:.06em; margin-top:2px}

/* ---------- status ---------- */
.pill{display:inline-flex; align-items:center; gap:5px; padding:2.5px 11px; border-radius:99px;
  font-size:.74rem; font-weight:700; white-space:nowrap; border:1px solid transparent}
.pill::before{font-size:.8em}
.pill-ok{background:var(--good-bg); color:#006300; border-color:#c9e8c9}
.pill-ok::before{content:"✓"}
.pill-warn{background:var(--warn-bg); color:var(--warn); border-color:#eeddb0}
.pill-warn::before{content:"!"}
.pill-crit{background:var(--crit-bg); color:var(--crit); border-color:#f2caca}
.pill-crit::before{content:"✕"}
.pill-info{background:var(--brand-wash); color:var(--brand-dark); border-color:#c5e9fb}
.pill-info::before{content:"i"}

.banner{border-radius:var(--radius); padding:13px 16px 13px 18px; margin-bottom:16px; font-weight:600;
  border:1px solid transparent; border-left-width:5px; box-shadow:var(--shadow)}
.banner-ok{background:var(--good-bg); color:#004d00; border-color:#bfe3bf; border-left-color:var(--good)}
.banner-warn{background:var(--warn-bg); color:var(--warn); border-color:#ecd9a8; border-left-color:#e8a410}
.banner-crit{background:var(--crit-bg); color:var(--crit); border-color:#efc4c4; border-left-color:var(--crit)}
.banner ul{margin:.4em 0 0; padding-left:1.2em; font-weight:400}

/* ---------- forms ---------- */
label{display:block; font-size:.76rem; font-weight:700; color:var(--text-2); margin-bottom:3px;
  letter-spacing:.01em}
input,select,textarea{
  width:100%; padding:10px 12px; font-size:1rem; border:1.5px solid #d5dde2;
  border-radius:9px; background:var(--surface-1); color:var(--text-1);
  font-family:inherit; transition:border-color .12s, box-shadow .12s;
}
input:focus,select:focus,textarea:focus{outline:none; border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(2,173,242,.18)}
input.big{font-size:1.6rem; text-align:center; font-weight:800; padding:14px;
  color:var(--brand-deep); letter-spacing:.02em}
.field{margin-bottom:10px}
.row{display:flex; gap:10px; flex-wrap:wrap; align-items:flex-end}
.row .field{flex:1; min-width:130px; margin-bottom:0}
button,.btn{
  display:inline-block; padding:11px 20px; font-size:.95rem; font-weight:700;
  border:none; border-radius:9px; cursor:pointer; text-decoration:none; text-align:center;
  font-family:inherit; color:#fff;
  background:linear-gradient(180deg,var(--brand),#0295d1);
  box-shadow:0 1px 2px rgba(2,72,107,.25), inset 0 1px 0 rgba(255,255,255,.25);
  transition:filter .12s, transform .05s;
}
button:hover,.btn:hover{filter:brightness(1.06)}
button:active,.btn:active{transform:translateY(1px); filter:brightness(.95)}
.btn-ghost{background:var(--surface-1); color:var(--brand-dark);
  border:1.5px solid #cfe3ee; box-shadow:none}
.btn-ghost:hover{background:var(--brand-wash); filter:none}
.btn-danger{background:linear-gradient(180deg,#e05252,#c53434)}
.btn-sm{padding:6px 12px; font-size:.8rem}
form.inline{display:inline}
button:disabled{opacity:.55; cursor:wait}

/* ---------- tables ---------- */
.tbl-wrap{overflow-x:auto; -webkit-overflow-scrolling:touch; border-radius:8px}
table.tbl{border-collapse:collapse; width:100%; font-size:.85rem}
.tbl th{
  text-align:left; font-size:.68rem; text-transform:uppercase; letter-spacing:.05em;
  color:var(--brand-deep); padding:8px 10px; border-bottom:2px solid #cfe3ee;
  white-space:nowrap; background:#f4fafd;
}
.tbl td{padding:8px 10px; border-bottom:1px solid var(--grid); vertical-align:top}
.tbl tr:nth-child(even) td{background:#fafcfd}
.tbl tr:hover td{background:var(--brand-wash)}
.tbl tr:last-child td{border-bottom:none}
.tbl .num{text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap}
.tbl .ts{font-size:.75rem; color:var(--text-2); white-space:nowrap}

/* ---------- charts (SVG classes) ---------- */
.viz{display:block; margin:6px 0}
.viz-surface{fill:var(--surface-1)}
.viz-grid{stroke:#eceeec; stroke-width:1}
.viz-axis{stroke:var(--axis); stroke-width:1.2}
.viz-tick{font:11px system-ui,sans-serif; fill:var(--muted)}
.viz-axislabel{font:11px system-ui,sans-serif; fill:var(--text-2); font-weight:600}
.viz-reflabel{font:10.5px system-ui,sans-serif; fill:var(--text-2); font-weight:700}
.viz-band{fill:var(--band)}
.viz-line{fill:none; stroke:var(--series-1); stroke-width:2.2; stroke-linejoin:round; stroke-linecap:round}
.viz-curve{fill:none; stroke:var(--muted); stroke-width:1.6; stroke-dasharray:5 3}
.viz-pt{fill:var(--series-1); stroke:var(--surface-1); stroke-width:1.6}
.viz-pt-hollow{fill:var(--surface-1); stroke:var(--series-1); stroke-width:1.6}
.viz-pt-bad{fill:var(--crit); stroke:var(--surface-1); stroke-width:2}
.viz-bar{fill:var(--series-1); opacity:.85}
.viz-bar-bad{fill:var(--crit)}
.viz-flag{font:700 10px system-ui,sans-serif; fill:var(--crit)}
.viz-flag-ok{fill:#006300}
.viz-ctrl{stroke:var(--text-2); stroke-width:1.4; stroke-dasharray:7 4}
.viz-ctrl-t{fill:var(--text-2)}
.viz-centre{stroke:var(--muted); stroke-width:1.2; stroke-dasharray:2 3}
.viz-centre-t{fill:var(--muted)}
.viz-spec{stroke:var(--crit); stroke-width:1.4}
.viz-spec-t{fill:var(--crit)}
.viz-empty{padding:26px; text-align:center; color:var(--muted); font-size:.9rem;
  border:1.5px dashed #c9d9e3; border-radius:var(--radius); background:#fafcfd}
.viz-spark .viz-line{stroke-width:1.5}
.viz-spark .viz-ctrl{stroke-width:.8}

/* ---------- why boxes ---------- */
.why{background:linear-gradient(180deg,#f0f8fd,#eaf5fc);
  border-left:4px solid var(--brand); border-radius:0 10px 10px 0;
  padding:11px 15px; font-size:.82rem; color:#33505f; margin:10px 0}
.why b{color:var(--brand-deep)}
.cite{font-size:.72rem; color:var(--muted); margin-top:4px}

/* ---------- misc ---------- */
.muted{color:var(--muted); font-size:.8rem}
.mono{font-variant-numeric:tabular-nums}
.right{text-align:right}
.actions-bar{display:flex; gap:8px; flex-wrap:wrap; margin:12px 0}
.kv{display:grid; grid-template-columns:auto 1fr; gap:3px 16px; font-size:.85rem}
.kv dt{color:var(--text-2); font-weight:600}
.kv dd{margin:0; font-variant-numeric:tabular-nums}
.errbox{background:var(--crit-bg); color:var(--crit); border:1px solid #efc4c4;
  border-left:5px solid var(--crit);
  border-radius:10px; padding:11px 14px; margin-bottom:12px; font-weight:600}

/* big numeric entry pad for operators */
.entry-hero{display:flex; gap:12px; align-items:stretch; flex-wrap:wrap}
.entry-hero .field{flex:2; min-width:170px}
.entry-hero button{flex:1; min-width:120px; font-size:1.15rem}

/* login */
body:has(> main .login-box){
  background:
    radial-gradient(1100px 500px at 50% -80px, rgba(2,173,242,.16), transparent 65%),
    var(--page);
}
.login-box{max-width:380px; margin:7vh auto; text-align:center}
.login-box .logo{height:80px; margin-bottom:12px; border-radius:6px;
  box-shadow:0 4px 18px rgba(2,109,153,.25)}
.login-box h1::after{margin-left:auto; margin-right:auto}
.login-box .card{text-align:left}
.login-box .card{border-top:4px solid var(--brand)}

/* ---------- print ---------- */
.print-only{display:none}
@media print{
  :root{font-size:12px}
  body{background:#fff}
  .topbar,.nav,.no-print,.actions-bar,button,.btn{display:none !important}
  .wrap{max-width:none; padding:0}
  .card{border:none; box-shadow:none; padding:6px 0; margin-bottom:8px; break-inside:avoid}
  .tile{box-shadow:none}
  .tbl tr:hover td{background:transparent}
  h1::after{display:none}
  .print-only{display:block}
  .print-head{
    display:flex; align-items:center; gap:14px; border-bottom:3px solid var(--brand);
    padding-bottom:8px; margin-bottom:12px;
  }
  .print-head .logo{height:52px}
  .print-head .t .name{font-weight:800; font-size:14px; letter-spacing:.02em; color:var(--brand-deep)}
  .print-head .t .sub{font-size:8.5px; color:#444}
  .print-head .t .doc{font-size:12px; font-weight:700; margin-top:2px}
  .print-head .meta{margin-left:auto; text-align:right; font-size:9px; color:#444}
  .print-foot{margin-top:14px; padding-top:6px; border-top:1px solid #999;
    font-size:8.5px; color:#555; display:flex; justify-content:space-between}
  .sig-row{display:flex; gap:30px; margin-top:22px}
  .sig{flex:1; border-top:1px solid #333; padding-top:4px; font-size:10px; text-align:center}
  a{color:inherit; text-decoration:none}
}