:root {
  --bg: #0d1117;
  --panel: #161b22;
  --line: #26303d;
  --fg: #e6edf3;
  --dim: #8b949e;
  --accent: #4fc3f7;
  --good: #56d364;
  --warn: #e3b341;
  --bad: #f85149;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

a { color: var(--accent); }

header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

header h1 { margin: 0; font-size: 18px; letter-spacing: .3px; }
header .sub { color: var(--dim); font-size: 13px; }
header nav { margin-left: auto; display: flex; gap: 14px; }

main { padding: 24px; max-width: 1180px; margin: 0 auto; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 18px;
}

.panel h2 { margin: 0 0 12px; font-size: 14px; text-transform: uppercase; letter-spacing: .8px; color: var(--dim); }

label { display: block; margin-bottom: 6px; color: var(--dim); font-size: 13px; }

select, input, textarea, button {
  font: inherit;
  color: var(--fg);
  background: #0d1117;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px 11px;
}

textarea { width: 100%; font-family: var(--mono); font-size: 13px; resize: vertical; }
select { width: 100%; }

button {
  cursor: pointer;
  background: var(--accent);
  color: #06202b;
  border: 0;
  font-weight: 600;
  padding: 10px 18px;
}
button:disabled { opacity: .45; cursor: default; }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--fg); font-weight: 500; }

.row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.row > * { flex: 1 1 200px; }
.row > button { flex: 0 0 auto; }

.bar { height: 7px; background: #0d1117; border: 1px solid var(--line); border-radius: 99px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent); width: 0; transition: width .25s; }

.mono { font-family: var(--mono); font-size: 12px; }
.dim { color: var(--dim); }
.good { color: var(--good); }
.warn { color: var(--warn); }
.bad { color: var(--bad); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 7px 9px; border-bottom: 1px solid var(--line); }
th { color: var(--dim); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
td.num, th.num { text-align: right; font-family: var(--mono); }

.cell { display: inline-block; width: 100%; border-radius: 4px; text-align: center; font-family: var(--mono); font-size: 11px; padding: 3px 0; }

.stats { display: flex; gap: 26px; flex-wrap: wrap; }
.stat b { display: block; font-size: 21px; font-family: var(--mono); font-weight: 600; }
.stat span { color: var(--dim); font-size: 12px; }

#log { max-height: 340px; overflow-y: auto; }
#log div { padding: 4px 0; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 12px; }

.pill { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 11px; border: 1px solid var(--line); }

.notice {
  background: rgba(86, 211, 100, .08);
  border: 1px solid rgba(86, 211, 100, .35);
  border-left: 3px solid var(--good);
  border-radius: 7px;
  padding: 11px 14px;
  margin-bottom: 14px;
  font-size: 13px;
}
.notice b { color: var(--good); }
.notice.stale { background: rgba(248, 81, 73, .08); border-color: rgba(248, 81, 73, .35); border-left-color: var(--bad); }
.notice.stale b { color: var(--bad); }
.scroll { overflow-x: auto; }

/* live bar ---------------------------------------------------------------- */
#livebar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 24px;
  background: rgba(86, 211, 100, .12);
  border-bottom: 1px solid rgba(86, 211, 100, .4);
  font-size: 13px;
}
#livebar .dot { width: 9px; height: 9px; border-radius: 99px; background: var(--good); box-shadow: 0 0 0 0 rgba(86,211,100,.7); animation: pulse 2s infinite; }
#livebar button { margin-left: auto; }
#livebar.offline { background: rgba(248, 81, 73, .12); border-bottom-color: rgba(248, 81, 73, .4); }
#livebar.offline .dot { background: var(--bad); animation: none; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(86,211,100,.6); }
  70% { box-shadow: 0 0 0 7px rgba(86,211,100,0); }
  100% { box-shadow: 0 0 0 0 rgba(86,211,100,0); }
}

/* narrative steps --------------------------------------------------------- */
.hero .big { font-size: 22px; text-transform: none; letter-spacing: 0; color: var(--fg); margin-bottom: 12px; }
.hero p { max-width: 68ch; }
.step h2 { display: flex; align-items: center; gap: 10px; }
.stepno {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px; border-radius: 99px;
  background: var(--accent); color: #06202b;
  font-size: 12px; font-weight: 700;
}
button.tiny { padding: 5px 11px; font-size: 12px; }

/* skill grid -------------------------------------------------------------- */
.skillgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); gap: 12px; }
.skilltile { background: #0d1117; border: 1px solid var(--line); border-radius: 8px; padding: 11px 13px; }
.skillname { font-size: 13px; margin-bottom: 8px; }
.skillbar { height: 5px; background: #1b2430; border-radius: 99px; overflow: hidden; margin-bottom: 7px; }
.skillbar > i { display: block; height: 100%; width: 0; background: var(--dim); transition: width .4s ease, background .4s ease; }
.skillscore { font-size: 12px; }
.verdict { font-size: 15px; line-height: 1.6; margin: 0 0 18px; max-width: 70ch; }

.examples { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.answer { background: #0d1117; border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 7px; padding: 12px 14px; white-space: pre-wrap; }

/* leave dialog ------------------------------------------------------------ */
.modal { position: fixed; inset: 0; z-index: 50; background: rgba(1, 4, 9, .78); display: grid; place-items: center; padding: 24px; }
.modal-box { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 24px; max-width: 460px; }
.modal-box h3 { margin: 0 0 12px; font-size: 17px; }
.modal-box p { margin: 0 0 12px; font-size: 14px; }
.modal-actions { display: flex; gap: 10px; margin-top: 18px; }