:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel2: #1c232c;
  --line: #2a323c;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --accent2: #3fb950;
  --warn: #d29922;
  --bad: #f85149;
  --babble: #58a6ff;
  --target: #d2a8ff;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; min-height: 100vh; display: flex; flex-direction: column; }
button, select, input { font: inherit; color: inherit; }
.hidden { display: none !important; }
body:not(.advanced) .adv-only { display: none !important; }
body.advanced .simple-only { display: none !important; }

.topbar { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; letter-spacing: .04em; white-space: nowrap; }
.tag { font-weight: 500; font-size: 11px; color: var(--muted); border: 1px solid var(--line); border-radius: 10px; padding: 1px 7px; margin-left: 6px; }
.mode, .seg-row { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg { background: transparent; border: 0; padding: 5px 12px; cursor: pointer; color: var(--muted); font-size: 12px; letter-spacing: .05em; }
.seg.on { background: var(--accent); color: #0d1117; font-weight: 600; }

.layout { flex: 1; display: grid; grid-template-columns: 150px 1fr; min-height: 0; }
.nav { display: flex; flex-direction: column; gap: 2px; padding: 12px 8px; border-right: 1px solid var(--line); }
.nav button { text-align: left; background: transparent; border: 0; padding: 10px 12px; border-radius: 6px; cursor: pointer; color: var(--muted); letter-spacing: .08em; font-weight: 600; font-size: 13px; }
.nav button.on { background: var(--panel2); color: var(--text); box-shadow: inset 3px 0 0 var(--accent); }
main { padding: 16px; max-width: 980px; width: 100%; min-width: 0; }
.page { display: none; flex-direction: column; gap: 12px; }
.page.on { display: flex; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; min-width: 0; }
details.card > summary { cursor: pointer; font-weight: 600; letter-spacing: .04em; margin-bottom: 6px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 12px; }
.lbl { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 6px; }
.sub { color: var(--muted); font-size: 11px; margin-top: -4px; }
.hint { color: var(--muted); font-size: 12.5px; margin: 6px 0 0; }
.advisory { color: var(--warn); font-size: 13px; margin-top: 8px; }
.row-split { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; align-items: center; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 4px 18px; }

.hero { text-align: center; padding: 18px 8px 8px; }
.hero-area { font-size: 26px; font-weight: 700; letter-spacing: .12em; }
.hero-strategy { color: var(--muted); margin-bottom: 18px; }
.start { width: min(320px, 100%); height: 72px; border-radius: 14px; border: 0; background: var(--accent2); color: #08130b; font-size: 20px; font-weight: 800; letter-spacing: .08em; cursor: pointer; box-shadow: 0 6px 24px rgba(63,185,80,.25); }
.start.running { background: var(--bad); color: #fff; box-shadow: 0 6px 24px rgba(248,81,73,.25); }
.start:disabled { background: var(--panel2); color: var(--muted); box-shadow: none; cursor: progress; }
.run-state { margin-top: 10px; font-weight: 700; letter-spacing: .1em; color: var(--muted); }
.run-state.active { color: var(--accent2); }
.elapsed { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 13px; }

.ctl { display: grid; grid-template-columns: 140px 1fr; gap: 10px; align-items: center; margin: 6px 0; }
.ctl > span { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
select { background: var(--panel2); border: 1px solid var(--line); border-radius: 6px; padding: 7px 8px; width: 100%; min-width: 0; }
.ctl-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin: 10px 0 4px; }
.ctl-row .lbl { margin: 0; min-width: 120px; }
.check { display: flex; gap: 8px; align-items: center; margin: 8px 0; }
input[type=radio], input[type=checkbox] { accent-color: var(--accent); }

.slider { margin: 10px 0; }
.slider .head { display: flex; justify-content: space-between; font-size: 12px; }
.slider .name { color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.slider .val { font-variant-numeric: tabular-nums; }
.slider .ends { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; }
.slider input[type=range] { width: 100%; accent-color: var(--accent); margin: 4px 0 0; }
.slider.disabled { opacity: .45; }

.cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.qcard { background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; padding: 14px 8px; cursor: pointer; }
.qcard.on { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.bar { height: 14px; background: var(--panel2); border-radius: 7px; overflow: hidden; margin: 6px 0; }
.bar .fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent2)); transition: width .25s; }

.meters { display: flex; flex-direction: column; gap: 6px; margin: 10px 0; }
.meter { display: grid; grid-template-columns: 80px 1fr 64px; gap: 8px; align-items: center; font-size: 12px; }
.meter .m { height: 10px; background: var(--panel2); border-radius: 5px; overflow: hidden; position: relative; }
.meter .m i { position: absolute; inset: 0 auto 0 0; background: var(--accent2); transition: width .1s; }
.meter .m b { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--warn); }
.meter .v { text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); }
.levelword { font-weight: 800; letter-spacing: .12em; }
.btn { background: var(--panel2); border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px; cursor: pointer; margin-top: 8px; }
.btn.primary { background: var(--accent); color: #0d1117; border-color: var(--accent); font-weight: 600; }
.btn.active { background: var(--bad); color: #fff; border-color: var(--bad); }

.kv { display: grid; grid-template-columns: 1fr auto; gap: 3px 12px; font-size: 13px; }
.kv .k { color: var(--muted); }
.kv .v { text-align: right; font-variant-numeric: tabular-nums; }
.plot { width: 100%; height: auto; background: var(--panel2); border-radius: 8px; margin-top: 8px; display: block; }
.plot.square { max-width: 320px; margin: 8px auto 0; }
.eq { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 10px; }
.eq .band { display: flex; flex-direction: column; align-items: center; font-size: 11px; color: var(--muted); }
.eq input[type=range] { writing-mode: vertical-lr; direction: rtl; height: 120px; width: 22px; accent-color: var(--target); }
.prose h2 { margin-top: 0; }
.prose a { color: var(--accent); }

.status { display: flex; gap: 16px; flex-wrap: wrap; padding: 8px 16px; border-top: 1px solid var(--line); background: var(--panel); font-size: 12px; color: var(--muted); position: sticky; bottom: 0; }
.status .warn { color: var(--warn); font-weight: 600; }
.status .muted { margin-left: auto; }
dialog { background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 10px; max-width: 420px; }
dialog::backdrop { background: rgba(0,0,0,.55); }
.dlg-btns { display: flex; justify-content: flex-end; gap: 8px; }

@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
  .nav { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); padding: 6px 8px; }
  .nav button { padding: 8px 10px; white-space: nowrap; }
  .nav button.on { box-shadow: inset 0 -3px 0 var(--accent); }
  main { padding: 12px 16px; }
  .ctl { grid-template-columns: 1fr; gap: 4px; }
  .status { position: static; gap: 4px 12px; padding: 8px 16px; }
  .status .muted { margin-left: 0; }
  .tag { display: none; }
  .eq input[type=range] { height: 90px; }
}

/* Donation (Monero) */
.donate-btn { margin-left: auto; background: transparent; border: 1px solid var(--line); color: var(--accent); border-radius: 12px; padding: 2px 10px; cursor: pointer; font-size: 12px; }
.donate-btn:hover { background: var(--panel2); }
.donate { max-width: 560px; }
.xmr { display: block; word-break: break-all; font-size: 12px; padding: 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel2); user-select: all; }
.donate .dlg-btns a.btn { text-decoration: none; }