:root{
  --navy:#2B2D63; --teal:#3DBD8A; --amber:#F59E0B; --red:#EF4444;
  --ink:#2B2D63; --ink2:#4A4A6A; --grid:#E8E8F0; --border:#C8C8D8;
  --bg:#F6F7FB; --card:#fff;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink2);background:var(--bg)}
h1{font-family:Georgia,serif;color:var(--navy);margin:.2rem 0 1rem}
h2{font-family:Georgia,serif;color:var(--navy);font-size:1.05rem;margin:.1rem 0 .7rem}
h3.section{font-family:Georgia,serif;color:var(--text-secondary,#4A4A6A);font-size:.95rem;margin:.6rem 0 .4rem;text-transform:uppercase;letter-spacing:.04em}
a{color:var(--navy);text-decoration:none}
a:hover{text-decoration:underline}
code{background:#eef;padding:1px 5px;border-radius:4px;font-size:.85em}

.topbar{display:flex;align-items:center;gap:1.3rem;background:var(--navy);
  color:#fff;padding:.6rem 1.1rem;position:sticky;top:0;z-index:50}
.topbar .brand{color:#fff;font-weight:bold;font-size:1.15rem;font-family:Georgia,serif}
.topbar nav a{color:#dfe0f0;margin-right:.3rem;font-size:.95rem}
.topbar nav a:hover{color:#fff}
.search{margin-left:auto;position:relative;width:min(420px,40vw)}
.search input{width:100%;padding:.45rem .7rem;border-radius:6px;border:none;font-size:.9rem}
.results{position:absolute;top:110%;left:0;right:0;background:#fff;color:var(--ink2);
  border:1px solid var(--border);border-radius:6px;max-height:60vh;overflow:auto;display:none;box-shadow:0 8px 24px rgba(0,0,0,.15)}
.results a{display:block;padding:.45rem .7rem;border-bottom:1px solid var(--grid);font-size:.85rem;color:var(--ink2)}
.results a:hover{background:#f0f1fb;text-decoration:none}
.results .p{color:var(--navy);font-weight:bold}
.results .ic{color:var(--teal);font-size:.8rem}
.interconnect{color:var(--teal);font-size:.95rem;margin:.1rem 0}

main{max-width:1180px;margin:1.3rem auto;padding:0 1rem}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1rem}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}
@media(max-width:820px){.cards{grid-template-columns:repeat(2,1fr)}.grid2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:1rem 1.1rem;margin-bottom:1rem}
.card.stat{text-align:center}
.stat .big{font-size:1.7rem;font-weight:bold;color:var(--navy)}
.stat .lbl{font-size:.8rem;color:var(--ink2)}
.muted{color:#8a8aa0;font-size:.85rem}

table{width:100%;border-collapse:collapse;font-size:.86rem}
th{text-align:left;color:var(--navy);border-bottom:2px solid var(--grid);padding:.35rem .4rem}
td{border-bottom:1px solid var(--grid);padding:.35rem .4rem;vertical-align:top}
.detail span{display:inline-block;margin-right:.5rem;color:var(--ink2)}
td.r,th.r{text-align:right;font-variant-numeric:tabular-nums}
.summary{font-variant-numeric:tabular-nums;color:var(--ink)}
.up{color:#1c7a51;font-weight:bold}
.down{color:#c0392b;font-weight:bold}
table.alerts td{vertical-align:middle}

.inline{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap;margin:.3rem 0}
label{font-size:.85rem;color:var(--ink2)}
input,select{padding:.35rem .5rem;border:1px solid var(--border);border-radius:6px;font-size:.9rem}
button{background:var(--teal);color:#fff;border:none;padding:.45rem .9rem;border-radius:6px;cursor:pointer;font-size:.9rem}
button:hover{filter:brightness(1.05)}
button.secondary{background:var(--navy)}
button.link{background:none;color:var(--ink2);padding:.1rem .3rem}

.flash{padding:.6rem .9rem;border-radius:8px;margin-bottom:1rem;font-size:.9rem}
.flash.ok{background:#e6f7ef;color:#1c7a51;border:1px solid #b6e6d0}
.flash.error{background:#fdeaea;color:#a32020;border:1px solid #f3c2c2}

tr.ackd{opacity:.4}
.what{white-space:nowrap;font-weight:bold;color:var(--ink)}
.what .ico{font-size:1.05rem}
.nowrap{white-space:nowrap}
/* subtle emphasis for high-severity rows (no severity column) */
tr.sev-high td:first-child{box-shadow:inset 3px 0 0 var(--red)}
.legend .legrow{font-size:.85rem;padding:.2rem 0;border-bottom:1px solid var(--grid)}
.legend .legrow .ico{font-size:1.05rem;margin-right:.2rem}

.filterbar{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:1rem}
.chip{background:#fff;border:1px solid var(--border);border-radius:16px;padding:.25rem .7rem;font-size:.82rem}
.chip.on{background:var(--navy);color:#fff}
.chip .n{opacity:.7;font-size:.78rem}

.barometer .gauge-val{font-size:2.4rem;font-weight:bold;color:var(--navy)}
.bar{height:14px;background:var(--grid);border-radius:8px;overflow:hidden;margin:.5rem 0}
.bar span{display:block;height:100%;background:linear-gradient(90deg,var(--teal),var(--amber),var(--red))}

.favgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
@media(max-width:820px){.favgrid{grid-template-columns:1fr}}
.fav .favhead{display:flex;justify-content:space-between;align-items:flex-start}
.note{font-size:.8rem;font-style:italic;color:var(--ink2)}
.mini{height:150px}

.charthead{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;flex-wrap:wrap}
.charthead .actions{display:flex;gap:.7rem;align-items:center;flex-wrap:wrap}

/* CSV download control (chart + entity pages) */
.btnlink{display:inline-block;background:var(--navy);color:#fff;padding:.4rem .8rem;
  border-radius:6px;font-size:.85rem;white-space:nowrap}
.btnlink:hover{text-decoration:none;opacity:.92}
.dlrow{display:flex;align-items:center;gap:.7rem;margin-top:.6rem}

/* entity page: list of interstate meters behind the stacked series */
.meterlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:.45rem}
.meteritem{display:flex;flex-direction:column;border:1px solid var(--border);
  border-radius:8px;padding:.5rem .65rem;background:#fff}
.meteritem:hover{text-decoration:none;border-color:var(--teal);background:#f0fbf6}
.meteritem .mname{color:var(--navy);font-weight:bold;font-size:.9rem;line-height:1.25}
.meteritem .mmeta{margin:.1rem 0}
.meteritem .mval{color:var(--ink2);font-size:.82rem}

/* changelog: new-pipeline callout + inline badge */
.newpipe{font-size:.85rem;color:#1c7a51;background:#e6f7ef;border:1px solid #b6e6d0;
  border-radius:6px;padding:.35rem .6rem;margin:.1rem 0 .7rem}
.newpipe a{color:#1c7a51;font-weight:bold}
.tag{display:inline-block;font-size:.7rem;font-weight:bold;text-transform:uppercase;
  letter-spacing:.03em;color:#fff;background:var(--teal);border-radius:4px;
  padding:.05rem .35rem;vertical-align:middle}