:root{
  --ink:#101418; --ink-2:#3c4652; --muted:#5b6472; --line:#e3e7ec; --bg:#f5f7f9;
  --white:#fff; --accent:#1a5cff; --good:#0b7a4b; --good-bg:#e8f6ee;
  --warn:#8a5a00; --warn-bg:#fdf3e0; --bad:#a51f1f; --bad-bg:#fdeaea;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:15px/1.45 Inter,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
header.top{position:sticky;top:0;z-index:20;background:var(--white);
  border-bottom:1px solid var(--line);padding:10px 20px;display:flex;
  align-items:center;gap:18px;flex-wrap:wrap}
.brand{font-weight:700;letter-spacing:-.2px;font-size:16px}
.brand span{color:var(--muted);font-weight:500}
nav{display:flex;gap:14px;flex-wrap:wrap;font-size:14px}
nav a{color:var(--ink-2);padding:4px 0}
nav a.on{color:var(--ink);font-weight:600;border-bottom:2px solid var(--ink)}
main{max-width:1180px;margin:0 auto;padding:22px 20px 60px}

/* ---- collapsible sidebar (Light Slate) -----------------------------------
   Two INDEPENDENT states:
     .nav-collapsed  = desktop icon rail (>=861px only)
     .drawer-open    = mobile drawer      (<=860px only)
   They never share a class, so a stored desktop preference can never open the
   phone drawer on load, and opening the phone drawer never collapses desktop. */
:root{--side:236px;--side-min:56px}
.side{position:fixed;inset:0 auto 0 0;width:var(--side);z-index:40;background:var(--white);
  border-right:1px solid var(--line);display:flex;flex-direction:column;
  transition:width .14s ease,transform .16s ease;overflow:hidden}
.side-top{display:flex;align-items:center;gap:8px;padding:12px 12px 10px;
  border-bottom:1px solid var(--line);min-height:52px;flex:0 0 auto}
.side-brand{font-weight:700;letter-spacing:-.3px;font-size:15.5px;color:var(--ink);white-space:nowrap;
  flex:1 1 auto;overflow:hidden;transition:opacity .1s ease}
.side-brand span{color:var(--muted)}
.side-toggle{display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--white);color:var(--ink-2);
  border-radius:6px;width:32px;height:32px;cursor:pointer;flex:0 0 32px;padding:0}
.side-toggle:hover{background:var(--bg);color:var(--ink)}
.side-toggle .ic-close{display:none}
.side-nav{flex:1 1 auto;overflow-y:auto;overflow-x:hidden;padding:8px 8px 12px;
  overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.side-nav:focus{outline:none}
.grp{margin:0 0 8px}
.grp-l{display:block;font-size:10.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);padding:8px 8px 4px;white-space:nowrap;transition:opacity .1s ease}
.grp-on .grp-l{color:var(--ink)}
.side-nav a,.side-out{display:flex;align-items:center;gap:10px;padding:7px 8px;border-radius:6px;
  color:var(--ink-2);font-size:13.5px;white-space:nowrap;min-height:34px}
.side-nav a:hover,.side-out:hover{background:var(--bg);text-decoration:none;color:var(--ink)}
.side-nav a.on{background:var(--bg);color:var(--ink);font-weight:600;box-shadow:inset 0 0 0 1px var(--line)}
.side-nav a.on b{font-weight:650}
.side-nav a .ic,.side-out .ic{flex:0 0 18px;color:#5b6472}
.side-nav a.on .ic{color:var(--ink)}
.side-nav a b,.side-out b{font-weight:inherit;transition:opacity .1s ease}
.side-out{margin:8px;border-top:1px solid var(--line);border-radius:0;padding:12px 8px 8px;color:var(--muted)}
body{padding-left:var(--side);transition:padding-left .14s ease}
/* keyboard: a real focus ring, not the 1px browser default */
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{
  outline:2px solid #1f6feb;outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;z-index:60;background:var(--ink);color:#fff;
  padding:10px 16px;border-radius:0 0 8px 0;font-weight:600}
.skip:focus{left:0}
.nav-locked{overflow:hidden}

@media(min-width:861px){
  .nav-collapsed{--side:var(--side-min)}
  .nav-collapsed .side-brand,.nav-collapsed .side-nav a b,.nav-collapsed .side-out b,
  .nav-collapsed .grp-l{display:none}
  .nav-collapsed .side-top{padding:12px 0 10px;justify-content:center;flex-direction:column;gap:10px}
  .nav-collapsed .side-brand{flex:0 0 0;height:0;overflow:hidden}
  .nav-collapsed .side-nav{padding:8px 0 12px}
  .nav-collapsed .grp{margin:0 0 4px}
  .nav-collapsed .side-nav a,.nav-collapsed .side-out{
    justify-content:center;padding:0;gap:0;width:40px;height:38px;margin:0 auto;border-radius:8px}
  .nav-collapsed .side-nav a.on{box-shadow:inset 0 0 0 1px var(--line)}
  .nav-collapsed .side-out{border-top:0;padding:0;margin:8px auto}
  .nav-collapsed .side-nav a .ic{flex:0 0 auto}
  /* section anchors: a real hairline between groups, inset so it reads as a
     divider and not as a border of the rail */
  .nav-collapsed .grp+.grp{border-top:0;padding-top:9px;margin-top:9px;position:relative}
  .nav-collapsed .grp+.grp::before{content:"";position:absolute;top:0;left:12px;right:12px;
    height:1px;background:var(--line)}
  /* active item in the rail: filled, so the eye lands on it without a label */
  .nav-collapsed .side-nav a.on{background:var(--ink);box-shadow:none}
  .nav-collapsed .side-nav a.on .ic{color:#fff}
}
header.top{display:none}
main.wide{max-width:560px;padding-top:8px}
header.top .burger{display:inline-flex;width:44px;height:44px;flex:0 0 44px;border:0;background:transparent}
.scrim{position:fixed;inset:0;z-index:35;background:rgba(16,20,24,.32);border:0;padding:0}
.scrim[hidden]{display:none}
@media(max-width:860px){
  .side{transform:translateX(-100%);width:270px;max-width:86vw;box-shadow:0 0 28px rgba(16,20,24,.2)}
  .drawer-open .side{transform:none}
  .side-nav{padding:8px 8px 16px}
  .side-nav a,.side-out{min-height:44px;padding:10px 10px}
  .side-toggle:not(.burger){width:44px;height:44px;flex:0 0 44px}
  /* inside the open drawer the toggle is a close button, not another hamburger */
  .drawer-open .side-toggle .ic-menu{display:none}
  .drawer-open .side-toggle .ic-close{display:block}
  .brand{font-weight:650;font-size:15px;letter-spacing:-.2px;color:var(--ink);
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  body{padding-left:0}
  header.top{display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:30;
    background:var(--white);border-bottom:1px solid var(--line);padding:6px 10px;min-height:56px}
  main{padding:18px 14px 56px}
  /* the seam: header hairline must not step against the open drawer */
  .drawer-open header.top{border-bottom-color:transparent}
  .side-out{background:var(--white);box-shadow:0 -1px 0 var(--line)}
}
h1{font-size:22px;margin:0 0 4px;letter-spacing:-.3px}
h2{font-size:16px;margin:26px 0 10px}
h3{font-size:14px;margin:18px 0 8px;color:var(--ink-2)}
.sub{color:var(--muted);font-size:13px;margin:0 0 18px}
.panel{background:var(--white);border:1px solid var(--line);border-radius:8px;
  padding:16px 18px;margin:0 0 16px}
.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.kpi .n{font-size:24px;font-weight:650;font-variant-numeric:tabular-nums;
  letter-spacing:-.5px}
.kpi .l{font-size:12px;color:var(--muted);text-transform:uppercase;
  letter-spacing:.4px}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.5px;
  color:var(--muted);border-bottom:1px solid var(--line);padding:8px 8px}
td{padding:8px;border-bottom:1px solid #f0f2f5;vertical-align:top}
tr:last-child td{border-bottom:0}
.num{font-family:var(--mono);font-size:13px;text-align:right;
  font-variant-numeric:tabular-nums;white-space:nowrap}
th.num{text-align:right}
.mono{font-family:var(--mono);font-size:12.5px;white-space:nowrap}
.pill{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;
  font-weight:600;background:#eef1f4;color:var(--ink-2);white-space:nowrap}
.pill.good{background:var(--good-bg);color:var(--good)}
.pill.warn{background:var(--warn-bg);color:var(--warn)}
.pill.bad{background:var(--bad-bg);color:var(--bad)}
.pill.ink{background:var(--ink);color:#fff}
.pill.info{background:#e9f0ff;color:#1443b8}
/* A panel owns its table: on a phone the table scrolls sideways instead of the
   page, so no column is silently cut off. */
.panel{overflow-x:auto}
@media(max-width:640px){.panel table{min-width:540px}}
.btn{display:inline-block;border:1px solid var(--ink);background:var(--ink);
  color:#fff;border-radius:6px;padding:8px 14px;font-size:13.5px;font-weight:600;
  cursor:pointer;font-family:inherit}
.btn:hover{opacity:.9;text-decoration:none}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.sm{padding:5px 10px;font-size:12.5px}
.btn[disabled]{opacity:.45;cursor:not-allowed}
input,select,textarea{font:inherit;padding:8px 10px;border:1px solid var(--line);
  border-radius:6px;background:#fff;width:100%}
textarea{min-height:120px;font-family:var(--mono);font-size:12.5px}
label{display:block;font-size:12px;color:var(--muted);margin:0 0 4px;
  text-transform:uppercase;letter-spacing:.4px}
.field{margin:0 0 12px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.row>*{flex:1 1 120px}
.flash{border-radius:8px;padding:10px 14px;margin:0 0 14px;font-size:13.5px;
  border:1px solid var(--line);background:#fff}
.flash.good{border-color:#bfe3cf;background:var(--good-bg);color:#0a5f3b}
.flash.bad{border-color:#f0c2c2;background:var(--bad-bg);color:#8c1a1a}
.flash.warn{border-color:#eed7a8;background:var(--warn-bg);color:#6f4a00}
.bar{height:6px;background:#eef1f4;border-radius:3px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--ink)}
.hint{font-size:12.5px;color:var(--muted)}
.skip{font-size:12.5px;color:var(--muted)}
code.k{background:#f0f2f5;border-radius:4px;padding:1px 5px;font-family:var(--mono);
  font-size:12px}
footer{color:var(--muted);font-size:12px;padding:20px;text-align:center}
.login{max-width:360px;margin:12vh auto}

/* --- channels --- */
.rowx{display:flex;align-items:center;justify-content:space-between;gap:10px}
.rowx h3{margin:0}
table.kv{width:100%;border-collapse:collapse;margin:8px 0 4px}
table.kv th{text-align:left;font-weight:500;color:var(--muted,#5b6470);width:42%;
  padding:4px 8px 4px 0;font-size:12.5px;vertical-align:top}
table.kv td{padding:4px 0;font-size:12.5px}
.badtext{color:var(--bad,#b42318)}
form.stack{display:flex;flex-direction:column;gap:10px;margin-top:12px}
form.stack label{display:flex;flex-direction:column;gap:4px;font-size:12.5px;
  color:var(--muted,#5b6470)}
form.stack input,form.stack textarea{font:inherit;padding:7px 9px;border:1px solid var(--line,#d7dbe0);
  border-radius:6px;background:#fff;color:inherit}
form.inline{display:inline-block;margin:10px 8px 0 0}
.actions{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.btn.alt{background:#fff;color:var(--ink,#111);border:1px solid var(--line,#d7dbe0)}
h4{margin:16px 0 4px;font-size:13px;font-weight:600}
.flash.warn{background:var(--warn-bg,#fff4d6);color:var(--warn,#8a5a00)}
/* phone density: must come after the base .g4 rule to win the cascade */
@media(max-width:640px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.kpi .n{font-size:21px}}