/* No external fonts, no external anything: the content security policy on
   every page forbids it, and a console that phones out to a CDN is a console
   whose availability depends on someone else. */
:root {
  --bg: #14161a;
  --panel: #1c1f26;
  --line: #2b303a;
  --ink: #e7e9ee;
  --dim: #9aa3b2;
  --accent: #6ea8fe;
  --good: #5fd08a;
  --bad: #ff7b72;
  --warn: #f0c674;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7f9; --panel: #ffffff; --line: #dfe3ea; --ink: #1c1f26;
    --dim: #5b6472; --accent: #2f6feb;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
.bar {
  display: flex; align-items: center; gap: .75rem;
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 650; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.who { margin-left: auto; color: var(--dim); font-size: .9rem; }
main { padding: 1rem; max-width: 60rem; margin: 0 auto; }
h1 { font-size: 1.35rem; margin: 0 0 1rem; }
h2 { font-size: 1.05rem; margin: 1.5rem 0 .5rem; }
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; padding: 1.1rem; margin-bottom: 1rem;
}
.narrow { max-width: 26rem; margin-inline: auto; }
label { display: block; margin: .75rem 0 .25rem; font-size: .85rem; color: var(--dim); }
input, select {
  width: 100%; padding: .7rem .75rem; font-size: 1rem;
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--line); border-radius: 8px;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button {
  font: inherit; cursor: pointer; border-radius: 8px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink);
  padding: .6rem .9rem;
}
button.primary { background: var(--accent); border-color: var(--accent); color: #0b0d10; font-weight: 600; }
button.wide { width: 100%; margin-top: 1rem; }
button.link { background: none; border: none; color: var(--accent); padding: 0; text-decoration: underline; }
button[disabled] { opacity: .55; cursor: progress; }
hr { border: none; border-top: 1px solid var(--line); margin: 1.25rem 0; }
.hint, .note { color: var(--dim); font-size: .85rem; }
.error { color: var(--bad); margin-top: .9rem; }
.ok { color: var(--good); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .5rem .4rem; border-bottom: 1px solid var(--line); }
th { color: var(--dim); font-weight: 550; font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85em; }
.pill { display: inline-block; padding: .1rem .5rem; border-radius: 999px; font-size: .75rem; border: 1px solid var(--line); color: var(--dim); }
.pill.on { color: var(--good); border-color: var(--good); }
.pill.off { color: var(--bad); border-color: var(--bad); }
.row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.grow { flex: 1 1 auto; }
.scroll { overflow-x: auto; }
.secret { word-break: break-all; background: var(--bg); padding: .6rem; border-radius: 8px; border: 1px dashed var(--warn); }

/* chat */
.msg { padding: .6rem .7rem; border-radius: 10px; margin-bottom: .6rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.user { background: var(--bg); border: 1px solid var(--line); }
.msg.assistant { background: var(--panel); border: 1px solid var(--accent); }
.msg .role { display: block; font-size: .72rem; color: var(--dim); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .2rem; }
textarea { width: 100%; padding: .7rem; font: inherit; background: var(--bg); color: var(--ink); border: 1px solid var(--line); border-radius: 8px; resize: vertical; }

/* probe playground */
.options { list-style: none; padding: 0; margin: .6rem 0; }
.options li { display: grid; grid-template-columns: 1.4rem 1fr 6rem 4.5rem; gap: .5rem; align-items: center; padding: .25rem 0; }
.options li.pick .label { color: var(--good); font-weight: 600; }
.bar { display: block; height: .5rem; background: var(--bg); border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.fill { display: block; height: 100%; width: 0; background: var(--accent); transition: width .35s ease; }
.options li.pick .fill { background: var(--good); }
.score { text-align: right; color: var(--dim); font-size: .8rem; }
@media (max-width: 30rem) {
  .options li { grid-template-columns: 1.2rem 1fr 4rem; }
  .score { grid-column: 2 / 4; text-align: left; }
}

/* self-test checklist */
.checklist { list-style: none; padding: 0; margin: 1rem 0 0; }
.checklist li { display: flex; gap: .6rem; align-items: baseline; padding: .35rem 0; border-bottom: 1px solid var(--line); }
.checklist .mark { font-weight: 700; width: 1.2rem; }
.checklist li.ok .mark { color: var(--good); }
.checklist li.bad .mark { color: var(--bad); }
.checklist .detail { color: var(--dim); font-size: .82rem; margin-left: auto; text-align: right; }

/* PIN entry: one big field, a numeric keypad on a phone, no other decisions. */
.pinpad { text-align: center; }
input.pin {
  font-size: 2rem; letter-spacing: 1.2rem; text-align: center;
  padding: .8rem .5rem .8rem 1.7rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.dots { display: flex; gap: .6rem; justify-content: center; margin-top: .9rem; }
.dots span {
  width: .7rem; height: .7rem; border-radius: 50%;
  border: 1px solid var(--line); background: transparent; transition: background .12s ease;
}
.dots span.on { background: var(--accent); border-color: var(--accent); }
.pinpad .hint { margin-top: 1.5rem; }