/* Signal eXchange design system
   -----------------------------
   The people using this run counts, fill orders and reconcile numbers all day.
   So: an operations console, not a marketing site. Dark chrome holds the
   navigation and never competes with the data; the work surface is paper white;
   every figure is monospaced and right-aligned so columns of numbers line up and
   a wrong one is visible at a glance. One accent (cobalt) marks what you can act
   on. Amber, green and red mean something and are never decoration. */

@import url('https://fonts.googleapis.com/css2?family=Public+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* surfaces */
  --chrome:#141a21; --chrome-2:#1d242d; --chrome-3:#2a333e; --chrome-ink:#cfd8e3;
  --paper:#f4f6f8; --surface:#ffffff; --sunk:#eef1f4;
  /* ink */
  --ink:#101720; --ink-2:#394655; --ink-3:#6b7a8a; --hair:#dde3e9;
  /* accent + semantics */
  --accent:#1f44c4; --accent-2:#163399; --accent-wash:#eaefff; --accent-ring:#c3d0ff;
  --ok:#17794f; --ok-wash:#e4f3eb; --warn:#9a6212; --warn-wash:#fbf0dc;
  --bad:#b2402b; --bad-wash:#fbe6e1;
  /* type */
  --ui:"Public Sans",-apple-system,"Segoe UI",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  /* shape */
  --r:10px; --r-sm:7px; --shadow:0 1px 2px rgba(16,23,32,.06),0 8px 24px -12px rgba(16,23,32,.18);
  --rail:232px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--paper);color:var(--ink);
  font:15px/1.55 var(--ui);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.011em;line-height:1.25}
h1{font-size:25px}
h2{font-size:16px}
h3{font-size:12px;text-transform:uppercase;letter-spacing:.09em;color:var(--ink-3);font-weight:600}
p{margin:0 0 10px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.num,.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.muted{color:var(--ink-3)}
.small{font-size:13px}
.lede{color:var(--ink-2);font-size:15px;max-width:74ch;margin:6px 0 20px}
.hint{font-size:13px;color:var(--ink-3);margin:4px 0 10px;max-width:70ch}
code{font-family:var(--mono);font-size:13px;background:var(--sunk);padding:1px 5px;border-radius:4px}

/* ---------- shell ---------- */
.shell{display:grid;grid-template-columns:var(--rail) minmax(0,1fr);min-height:100%}
.rail{background:var(--chrome);color:var(--chrome-ink);display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;padding:16px 12px}
.rail .brand{display:flex;align-items:baseline;gap:6px;color:#fff;font-weight:700;font-size:17px;
  padding:6px 10px 18px;text-decoration:none;letter-spacing:-.02em}
.rail .brand em{font-style:normal;color:#7fa2ff}
.rail .section{font-size:10.5px;text-transform:uppercase;letter-spacing:.12em;color:#6c7b8d;
  padding:16px 10px 6px;font-weight:600}
.rail a.nav{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--r-sm);
  color:var(--chrome-ink);font-size:14px;font-weight:500;text-decoration:none}
.rail a.nav:hover{background:var(--chrome-2);color:#fff}
.rail a.nav.on{background:var(--accent);color:#fff}
.rail a.nav .ic{width:18px;text-align:center;opacity:.9;font-size:13px}
.rail .foot{margin-top:auto;padding:12px 10px;border-top:1px solid var(--chrome-3);font-size:11.5px;color:#6c7b8d}

.work{display:flex;flex-direction:column;min-width:0}
.context{position:sticky;top:0;z-index:15;background:rgba(255,255,255,.93);
  backdrop-filter:blur(6px);border-bottom:1px solid var(--hair);
  padding:10px 24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.context .where{font-size:13px;color:var(--ink-3)}
.context .where b{color:var(--ink);font-weight:600}
.context .build{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:12.5px}
.context .build .tag{font-family:var(--mono);background:var(--sunk);border:1px solid var(--hair);
  border-radius:99px;padding:3px 10px;color:var(--ink-2)}
.context .build .tag b{color:var(--ink)}
main{padding:22px 24px 72px;max-width:1460px;width:100%}
@media(max-width:900px){
  .shell{grid-template-columns:1fr}
  .rail{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;gap:4px;padding:10px}
  .rail .section,.rail .foot{display:none}
  .rail .brand{padding:0 12px 0 4px}
  main{padding:16px}
}

/* ---------- panels ---------- */
.panel{background:var(--surface);border:1px solid var(--hair);border-radius:var(--r);
  padding:18px;margin-bottom:16px;box-shadow:var(--shadow)}
.panel.flush{padding:0;overflow:hidden}
.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  flex-wrap:wrap;margin-bottom:12px}
.panel-head .actions{display:flex;gap:8px;flex-wrap:wrap}
.split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px;align-items:start}
@media(max-width:1080px){.split{grid-template-columns:1fr}}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.stack{display:grid;gap:10px}

/* ---------- stat tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(142px,1fr));gap:1px;
  background:var(--hair);border:1px solid var(--hair);border-radius:var(--r);overflow:hidden}
.tile{background:var(--surface);padding:14px 16px}
.tile .v{font-family:var(--mono);font-size:22px;font-weight:600;letter-spacing:-.02em}
.tile .k{font-size:12px;color:var(--ink-3);margin-top:2px}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;font-size:14px}
thead th{position:sticky;top:0;background:var(--surface);text-align:left;font-size:10.5px;
  text-transform:uppercase;letter-spacing:.09em;color:var(--ink-3);font-weight:650;
  padding:9px 12px;border-bottom:1px solid var(--hair);z-index:1;white-space:nowrap}
tbody td{padding:9px 12px;border-bottom:1px solid var(--hair);vertical-align:middle}
tbody tr:hover td{background:#fafbfc}
td.num,th.num{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums}
tr.total td{border-top:1.5px solid var(--ink);font-weight:650;background:#fafbfc}
tr.section-row td{background:var(--sunk);font-size:10.5px;text-transform:uppercase;
  letter-spacing:.09em;color:var(--ink-3);font-weight:650;padding:6px 12px}
.table-wrap{overflow:auto;max-height:70vh;border-radius:var(--r-sm)}
.bar{height:6px;background:var(--sunk);border-radius:99px;overflow:hidden;min-width:60px}
.bar i{display:block;height:100%;background:var(--accent);border-radius:99px}

/* ---------- controls ---------- */
button,.btn{font:inherit;font-size:13.5px;font-weight:550;padding:8px 14px;border-radius:var(--r-sm);
  border:1px solid var(--hair);background:var(--surface);color:var(--ink);cursor:pointer;
  display:inline-flex;align-items:center;gap:7px;text-decoration:none;white-space:nowrap}
button:hover,.btn:hover{border-color:var(--ink-3);text-decoration:none}
button:focus-visible,.btn:focus-visible,input:focus-visible,select:focus-visible,
textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.btn-primary,button.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover,button.primary:hover{background:var(--accent-2);border-color:var(--accent-2);color:#fff}
button[disabled],.btn[disabled]{opacity:.45;cursor:not-allowed}
button.ghost{background:transparent;border-color:transparent;color:var(--ink-2)}
button.ghost:hover{background:var(--sunk);border-color:transparent}
button.danger{color:var(--bad)}
button.icon{padding:5px 8px;font-size:13px;line-height:1}
.btn-lg{width:100%;justify-content:center;padding:12px;font-size:15px}
input,select,textarea{font:inherit;font-size:14px;padding:8px 11px;border:1px solid var(--hair);
  border-radius:var(--r-sm);background:#fff;color:var(--ink);width:100%}
input::placeholder{color:#9aa7b4}
label.lbl{display:block;font-size:11.5px;text-transform:uppercase;letter-spacing:.07em;
  color:var(--ink-3);font-weight:600;margin:0 0 5px}
.field{margin-bottom:12px}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.inline{display:flex;gap:8px;align-items:center;flex-wrap:wrap}

/* segmented control */
.seg{display:inline-flex;background:var(--sunk);border-radius:var(--r-sm);padding:3px;gap:2px;width:100%}
.seg button{flex:1;justify-content:center;border:none;background:transparent;font-size:13px;
  padding:6px 8px;color:var(--ink-2);font-weight:550}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);
  box-shadow:0 1px 2px rgba(16,23,32,.12)}

/* chips */
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--sunk);border:1px solid var(--hair);
  border-radius:99px;padding:3px 9px;font-size:12.5px;font-family:var(--mono)}
.chip button{border:none;background:none;padding:0;color:var(--ink-3);font-size:14px;line-height:1}
.chip button:hover{color:var(--bad)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.pill{font-size:11px;padding:3px 9px;border-radius:99px;font-weight:650;text-transform:uppercase;
  letter-spacing:.05em;display:inline-block}
.pill.ok{background:var(--ok-wash);color:var(--ok)}
.pill.draft{background:var(--warn-wash);color:var(--warn)}
.pill.bad{background:var(--bad-wash);color:var(--bad)}
.pill.info{background:var(--accent-wash);color:var(--accent)}

/* notices */
.notice{border-radius:var(--r-sm);padding:11px 14px;font-size:13.5px;margin:12px 0;
  border:1px solid var(--hair);background:var(--sunk);color:var(--ink-2)}
.notice.ok{background:var(--ok-wash);border-color:#bfe0cd;color:var(--ok)}
.notice.warn{background:var(--warn-wash);border-color:#eed9ae;color:var(--warn)}
.notice.bad{background:var(--bad-wash);border-color:#eec4b9;color:var(--bad)}
.empty{text-align:center;padding:30px 16px;color:var(--ink-3);border:1px dashed var(--hair);
  border-radius:var(--r);font-size:14px}
.empty strong{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}

/* ---------- count builder ---------- */
.builder-grid{display:grid;grid-template-columns:minmax(0,1fr) 332px;gap:16px;align-items:start}
@media(max-width:1180px){.builder-grid{grid-template-columns:1fr}}
.group{border:1px solid var(--hair);border-radius:var(--r);background:var(--surface);
  padding:12px;margin:10px 0}
.group.nested{background:#fbfcfd}
.group-bar{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.group-bar .joiner{display:inline-flex;background:var(--sunk);border-radius:99px;padding:2px}
.group-bar .joiner button{border:none;background:transparent;border-radius:99px;font-size:11.5px;
  padding:3px 11px;font-weight:650;letter-spacing:.04em;color:var(--ink-3);text-transform:uppercase}
.group-bar .joiner button[aria-pressed="true"]{background:var(--ink);color:#fff}
.group-bar .says{font-size:12.5px;color:var(--ink-3)}
.cond{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:8px;border-radius:var(--r-sm)}
.cond:hover{background:#fafbfc}
.cond + .cond{border-top:1px solid var(--hair)}
.cond .fieldbtn{font-weight:600;background:var(--accent-wash);border-color:var(--accent-ring);
  color:var(--accent-2);min-width:150px;justify-content:space-between}
.cond select{width:auto;min-width:130px;font-size:13.5px}
.cond .val{flex:1;min-width:190px}
.cond .val.narrow{flex:0;min-width:96px}
.cond .valchips{flex:1;min-width:220px;border:1px solid var(--hair);border-radius:var(--r-sm);
  padding:5px;display:flex;gap:5px;flex-wrap:wrap;align-items:center;background:#fff}
.cond .valchips input{border:none;flex:1;min-width:110px;padding:3px 4px;font-size:13px}
.cond .valchips input:focus{outline:none}
.toggle{display:inline-flex;gap:0;border:1px solid var(--hair);border-radius:99px;overflow:hidden}
.toggle button{border:none;border-radius:0;font-size:12.5px;padding:5px 14px;background:#fff}
.toggle button[aria-pressed="true"]{background:var(--ink);color:#fff}

/* field picker popover */
.picker{position:fixed;z-index:60;width:330px;max-height:420px;overflow:auto;background:var(--surface);
  border:1px solid var(--hair);border-radius:var(--r);box-shadow:0 18px 50px -14px rgba(16,23,32,.4);
  padding:10px}
.picker input{margin-bottom:8px}
.picker .grp{font-size:10.5px;text-transform:uppercase;letter-spacing:.09em;color:var(--ink-3);
  font-weight:650;margin:10px 4px 4px}
.picker button.opt{display:flex;width:100%;justify-content:space-between;border:none;background:none;
  padding:6px 8px;border-radius:var(--r-sm);font-size:13.5px;text-align:left}
.picker button.opt:hover,.picker button.opt.active{background:var(--accent-wash);color:var(--accent-2)}
.picker button.opt .kind{font-size:11px;color:var(--ink-3);font-family:var(--mono)}
.backdrop{position:fixed;inset:0;z-index:55}

/* result rail */
.result .count{font-family:var(--mono);font-size:38px;font-weight:600;letter-spacing:-.03em;
  line-height:1.05;margin:10px 0 2px}
.result .count.stale{color:var(--ink-3)}
.result .levels{font-size:12.5px;color:var(--ink-3);font-family:var(--mono)}
.sentence{background:var(--accent-wash);border:1px solid var(--accent-ring);border-radius:var(--r-sm);
  padding:10px 12px;font-size:13px;color:#16307e;margin-top:12px}
.sentence .lab{display:block;font-size:10.5px;text-transform:uppercase;letter-spacing:.09em;
  color:#4c63ad;margin-bottom:3px;font-weight:650}

/* stepper */
.steps{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.step{display:flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--hair);
  border-radius:99px;background:var(--surface);font-size:13px;color:var(--ink-3)}
.step .n{width:20px;height:20px;border-radius:50%;background:var(--sunk);color:var(--ink-3);
  display:grid;place-items:center;font-size:11px;font-weight:700;font-family:var(--mono)}
.step.done{color:var(--ok);border-color:#bfe0cd;background:var(--ok-wash)}
.step.done .n{background:var(--ok);color:#fff}
.step.now{color:var(--ink);border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-wash)}
.step.now .n{background:var(--accent);color:#fff}

/* checks */
.check{display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--hair);align-items:flex-start}
.check:last-child{border-bottom:none}
.check .mk{width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;
  font-weight:700;flex:none;margin-top:2px}
.check .mk.y{background:var(--ok-wash);color:var(--ok)}
.check .mk.n{background:var(--bad-wash);color:var(--bad)}
.check b{font-weight:600;font-size:13.5px}
.check .d{font-size:12.5px;color:var(--ink-3)}

/* drop zone */
.drop{border:1.5px dashed var(--hair);border-radius:var(--r);padding:26px;text-align:center;
  background:#fcfdfe;cursor:pointer}
.drop.over{border-color:var(--accent);background:var(--accent-wash)}
.drop strong{display:block;margin-bottom:4px}

/* toasts */
#toasts{position:fixed;right:18px;bottom:18px;z-index:80;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--ink);color:#fff;padding:11px 15px;border-radius:var(--r-sm);font-size:13.5px;
  box-shadow:0 14px 34px -10px rgba(16,23,32,.5);max-width:360px}
.toast.bad{background:var(--bad)}
.toast.ok{background:var(--ok)}

/* guide */
.prose{max-width:74ch}
.prose h2{font-size:17px;margin:26px 0 8px}
.prose ul,.prose ol{padding-left:20px;margin:8px 0}
.prose li{margin:5px 0}
.numbered{list-style:none;padding:0;counter-reset:s}
.numbered li{counter-increment:s;position-relative;padding-left:38px;position:relative;margin:12px 0}
.numbered li::before{content:counter(s);position:absolute;left:0;top:1px;width:25px;height:25px;
  border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;
  font:600 12px var(--mono)}
kbd{font-family:var(--mono);font-size:12px;border:1px solid var(--hair);border-bottom-width:2px;
  border-radius:5px;padding:1px 6px;background:#fff}

@media print{
  .rail,.context,.no-print{display:none!important}
  .shell{display:block}
  main{padding:0;max-width:none}
  .panel{box-shadow:none;border:none;padding:0}
}