/* Layout: the 18-column periodic chart is the page; the selected element's bench fills
   the empty block above groups 3-12, and the lab notebook sits under the f-block. */
:root {
  color-scheme: dark;
  --bg: #0a0f1d;
  --panel: #111a2f;
  --panel-2: #172340;
  --ink: #e6ebf5;
  --muted: #8a97b6;
  --line: #233154;
  --beam: #5ee1ff;
  --beam-ink: #04131c;
  --bad: #ff6b7d;
  --good: #63e6a6;
  --glow: 1;
  --hatch: #ffffff10;

  --k-alkali: #ff7a59; --k-alkaline: #ffb547; --k-transition: #6fa8ff; --k-post: #8fd3c1; --k-metalloid: #b9dc6a;
  --k-nonmetal: #4fe39a; --k-halogen: #f2e863; --k-noble: #c48bff; --k-lanthanide: #ff8fc8; --k-actinide: #ff5f7a;

  --display: 'Chakra Petch', 'Arial Narrow', system-ui, sans-serif;
  --body: 'Atkinson Hyperlegible', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #eef1f7; --panel: #ffffff; --panel-2: #e4e9f3; --ink: #121a2d; --muted: #586582; --line: #cdd5e5;
    --beam: #0a6fa8; --beam-ink: #ffffff; --bad: #c0283e; --good: #127a4a; --glow: 0; --hatch: #12182b0d;
    --k-alkali: #d4512c; --k-alkaline: #b97b0c; --k-transition: #2f6fd6; --k-post: #2b8f7a; --k-metalloid: #6c8f17;
    --k-nonmetal: #148a52; --k-halogen: #9a8c00; --k-noble: #8146d1; --k-lanthanide: #c63f8a; --k-actinide: #c8233f;
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #eef1f7; --panel: #ffffff; --panel-2: #e4e9f3; --ink: #121a2d; --muted: #586582; --line: #cdd5e5;
  --beam: #0a6fa8; --beam-ink: #ffffff; --bad: #c0283e; --good: #127a4a; --glow: 0; --hatch: #12182b0d;
  --k-alkali: #d4512c; --k-alkaline: #b97b0c; --k-transition: #2f6fd6; --k-post: #2b8f7a; --k-metalloid: #6c8f17;
  --k-nonmetal: #148a52; --k-halogen: #9a8c00; --k-noble: #8146d1; --k-lanthanide: #c63f8a; --k-actinide: #c8233f;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 var(--body);
  background-image: linear-gradient(var(--hatch) 1px, transparent 1px), linear-gradient(90deg, var(--hatch) 1px, transparent 1px);
  background-size: 28px 28px;
}
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--beam); outline-offset: 2px; }
a { color: var(--beam); }

.page {
  max-width: 1440px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 20px 28px;
  display: grid; gap: 18px;
}

/* ---------- Masthead ---------- */
.mast { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: end; justify-content: space-between; }
.mark h1 {
  margin: 0; font: 700 clamp(28px, 4vw, 40px)/1 var(--display); letter-spacing: .01em;
  display: flex; align-items: center; gap: 12px;
}
.mark-z {
  font: 500 13px/1 var(--mono); color: var(--muted); border: 1.5px solid var(--line); border-radius: 4px;
  width: 44px; height: 44px; display: grid; place-items: start; padding: 5px; position: relative;
}
.mark-z::after { content: "Pp"; position: absolute; inset: 14px 0 0; text-align: center; font: 700 20px/1 var(--display); color: var(--beam); }
.mark p { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
.mast-right { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: center; }
.tally { display: grid; grid-template-columns: auto auto; gap: 2px 12px; align-items: baseline; font-family: var(--mono); }
.tally-label { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.tally-num { font-size: 13px; color: var(--muted); text-align: right; font-variant-numeric: tabular-nums; }
.tally-num b { font-size: 20px; color: var(--ink); }
.tally-bar { grid-column: 1 / -1; display: flex; gap: 1px; width: 236px; max-width: 100%; height: 6px; }
.tally-bar i { flex: 1; background: var(--line); border-radius: 1px; }
.tally-bar i.on { background: var(--beam); }
.mast-keys { display: flex; gap: 8px; align-items: center; }
.mode { font: 700 11px/1 var(--mono); letter-spacing: .12em; padding: 6px 8px; border-radius: 4px; border: 1px solid var(--line); color: var(--muted); }
.mode.live { color: var(--good); border-color: color-mix(in srgb, var(--good) 50%, transparent); }

.btn {
  border: 1px solid var(--line); background: var(--panel); border-radius: 6px; padding: 8px 14px; cursor: pointer;
  font: 600 14px/1.2 var(--display); letter-spacing: .02em; transition: border-color .15s, background .15s;
}
.btn:hover { border-color: var(--beam); }
.btn.icon { width: 38px; padding: 8px 0; text-align: center; }
.btn.primary { background: var(--beam); color: var(--beam-ink); border-color: var(--beam); }
.btn.primary:hover { filter: brightness(1.08); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- The chart ---------- */
.chart-scroll { overflow-x: auto; padding-bottom: 4px; }
.chart {
  --cell: minmax(0, 1fr);
  display: grid; grid-template-columns: 22px repeat(18, var(--cell));
  grid-template-rows: 18px repeat(7, auto) 14px auto auto;
  gap: 4px; min-width: 980px;
}
.gnum, .pnum { font: 500 10px/1 var(--mono); color: var(--muted); display: grid; place-items: center; }
.cell {
  position: relative; aspect-ratio: 1 / 1.08; min-width: 0; border-radius: 5px; padding: 4px 5px;
  border: 1.5px solid color-mix(in srgb, var(--k) 45%, var(--line)); background: var(--panel);
  cursor: pointer; text-align: left; display: grid; grid-template-rows: auto 1fr auto; overflow: hidden;
  transition: transform .12s, border-color .15s, box-shadow .2s;
}
.cell:hover { transform: translateY(-2px); border-color: var(--k); }
.cell .z { font: 500 10px/1 var(--mono); color: var(--muted); }
.cell .s { font: 700 clamp(15px, 1.6vw, 22px)/1 var(--display); align-self: center; justify-self: center; color: color-mix(in srgb, var(--ink) 80%, var(--k)); }
.cell .who { font: 500 8.5px/1 var(--mono); color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center; min-height: 9px; }
.cell.caught { background: color-mix(in srgb, var(--k) 24%, var(--panel)); border-color: var(--k); box-shadow: 0 0 calc(var(--glow) * 14px) color-mix(in srgb, var(--k) 40%, transparent); }
.cell.caught .s { color: var(--ink); text-shadow: 0 0 calc(var(--glow) * 10px) var(--k); }
.cell.caught .who { color: color-mix(in srgb, var(--ink) 70%, var(--k)); }
.cell.locked { background: repeating-linear-gradient(135deg, var(--panel) 0 5px, var(--panel-2) 5px 6px); border-style: dashed; border-color: var(--line); }
.cell.locked .s { color: var(--muted); opacity: .7; }
.cell.pending { animation: pulse 1.4s ease-in-out infinite; }
.cell.sel { outline: 2px solid var(--beam); outline-offset: 2px; z-index: 1; }
.cell.dim { opacity: .22; }
.cell.flash { animation: flash 1.6s ease-out; }
.cell .tag { position: absolute; top: 3px; right: 4px; font: 700 8px/1 var(--mono); color: var(--muted); }
@keyframes pulse { 50% { border-color: var(--beam); box-shadow: 0 0 0 3px color-mix(in srgb, var(--beam) 25%, transparent); } }
@keyframes flash { 0% { box-shadow: 0 0 0 0 var(--k), 0 0 40px 10px var(--k); transform: scale(1.18); } 100% { transform: none; } }
.slot {
  display: grid; place-items: center; text-align: center; font: 500 10px/1.2 var(--mono); color: var(--muted);
  border: 1.5px dashed var(--line); border-radius: 5px;
}
.frow-label { font: 500 10px/1.2 var(--mono); color: var(--muted); display: grid; place-items: center end; padding-right: 4px; grid-column: 1 / 4; }

/* ---------- The bench (inside the chart gap) ---------- */
.bench {
  grid-column: 4 / 14; grid-row: 2 / 5; align-self: stretch;
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 16px;
  background: color-mix(in srgb, var(--panel) 92%, transparent); border: 1px solid var(--line); border-radius: 8px;
  padding: 12px 14px; margin: 0 6px 6px; min-width: 0;
}
.specimen {
  --k: var(--k-transition);
  width: 112px; aspect-ratio: 1; align-self: start; border-radius: 8px; border: 2px solid var(--k); padding: 8px 10px; position: relative;
  background: radial-gradient(circle at 50% 45%, color-mix(in srgb, var(--k) 22%, var(--panel)), var(--panel) 70%);
  display: grid; grid-template-rows: auto 1fr auto;
}
.specimen .top { display: flex; justify-content: space-between; font: 500 12px/1 var(--mono); color: var(--muted); }
.specimen .top b { color: var(--k); font-size: 15px; }
.specimen .big { font: 700 48px/1 var(--display); align-self: center; justify-self: center; text-shadow: 0 0 calc(var(--glow) * 18px) var(--k); }
.specimen .nm { font: 600 13px/1 var(--display); text-align: center; }
.specimen.eureka::after {
  content: "LAUNCHED"; position: absolute; left: 50%; top: 50%; translate: -50% -50%; rotate: -14deg;
  font: 700 15px/1 var(--mono); letter-spacing: .12em; color: var(--good); border: 2px solid var(--good); padding: 4px 6px; border-radius: 4px;
  background: color-mix(in srgb, var(--panel) 80%, transparent); animation: stamp .35s cubic-bezier(.3, 1.6, .5, 1);
}
@keyframes stamp { from { scale: 2.4; opacity: 0; } }
.bench-main { min-width: 0; display: grid; gap: 5px; align-content: start; }
.bench-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.bench-head h2 { margin: 0; font: 700 26px/1.1 var(--display); text-wrap: balance; }
.bench-head .tick { font: 500 13px/1 var(--mono); color: var(--beam); }
.bench-nav { margin-left: auto; display: flex; gap: 4px; }
.bench-nav .btn { padding: 4px 9px; font-size: 12px; }
.facts { display: flex; flex-wrap: wrap; gap: 2px 16px; font: 400 12px/1.4 var(--mono); color: var(--muted); margin: 0; }
.facts b { color: var(--ink); font-weight: 500; }
.verdict { font-size: 14px; margin: 2px 0 0; max-width: 62ch; }
.verdict.lock { color: var(--muted); }
.verdict.lock::before { content: "Sealed · "; color: var(--bad); font-family: var(--mono); font-size: 12px; }
.links { display: flex; gap: 14px; font: 500 12px/1 var(--mono); }
.buyrow { display: flex; flex-wrap: wrap; gap: 6px 8px; align-items: center; font: 500 13px/1 var(--mono); }
.buyrow label { font-family: var(--display); font-weight: 600; font-size: 14px; }
.buyrow input {
  width: 92px; font: 500 14px var(--mono); background: var(--panel-2); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px;
}
.buyrow .note { font: 400 12px/1.3 var(--body); color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions .note { font-size: 13px; color: var(--muted); }

.spectrum { grid-column: 1 / -1; display: grid; gap: 3px; }
.spec-bar { position: relative; height: 22px; background: #000; border-radius: 3px; overflow: hidden; border: 1px solid var(--line); }
.spec-bar i { position: absolute; top: 0; bottom: 0; width: 3px; margin-left: -1.5px; opacity: 0; transition: opacity .5s; }
.spec-bar i.on { opacity: 1; }
.spec-bar.ghost i { opacity: .16; }
.spec-bar.ghost i.on { opacity: 1; }
.spec-axis { display: flex; justify-content: space-between; font: 400 10px/1 var(--mono); color: var(--muted); }
.spec-axis .step { flex: 1; text-align: center; color: var(--ink); padding: 0 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.spec-axis .step.ok { color: var(--good); }
.spec-axis .step.err { color: var(--bad); white-space: normal; }

/* ---------- Legend ---------- */
.legend { display: flex; flex-wrap: wrap; gap: 6px 8px; align-items: center; }
.legend .chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 9px; border-radius: 99px; cursor: pointer;
  border: 1px solid var(--line); background: var(--panel); font: 500 12px/1.2 var(--body);
}
.legend .chip i { width: 10px; height: 10px; border-radius: 2px; background: var(--k); }
.legend .chip[aria-pressed="true"] { border-color: var(--k); background: color-mix(in srgb, var(--k) 18%, var(--panel)); }
.legend .sep { width: 1px; height: 18px; background: var(--line); margin: 0 4px; }
.legend .key { font: 500 11px/1 var(--mono); color: var(--muted); display: inline-flex; gap: 6px; align-items: center; }
.legend .key .sw { width: 14px; height: 14px; border-radius: 3px; border: 1.5px solid var(--muted); }
.legend .key .sw.c { background: var(--beam); border-color: var(--beam); }
.legend .rand { margin-left: auto; }

.sheet { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 18px 20px; min-height: 180px; min-width: 0; }
.sheet h3 { margin: 0 0 10px; font: 700 18px/1.2 var(--display); }
.sheet p { margin: 0 0 10px; max-width: 70ch; }
.muted { color: var(--muted); }
.feed { list-style: none; margin: 0; padding: 0; display: grid; }
.feed li { display: grid; grid-template-columns: 46px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--line); }
.feed li:last-child { border-bottom: 0; }
.chipcell {
  width: 46px; height: 46px; border-radius: 5px; border: 1.5px solid var(--k); display: grid; place-items: center; cursor: pointer;
  background: color-mix(in srgb, var(--k) 22%, var(--panel)); font: 700 18px/1 var(--display); padding: 0;
}
.feed .what { min-width: 0; }
.feed .what b { font-family: var(--display); font-size: 15px; }
.feed .what div { font: 400 12px/1.4 var(--mono); color: var(--muted); overflow-wrap: anywhere; }
.feed .when { font: 400 12px/1 var(--mono); color: var(--muted); white-space: nowrap; }
.view.sheet { display: block; }

.how { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 28px; }
.steps { margin: 0 0 16px; padding: 0; list-style: none; display: grid; gap: 12px; counter-reset: s; max-width: 62ch; }
.steps li { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 12px; counter-increment: s; }
.steps li::before {
  content: counter(s); width: 34px; height: 34px; border-radius: 5px; border: 1.5px solid var(--beam); color: var(--beam);
  display: grid; place-items: center; font: 700 15px/1 var(--display);
}
.steps b { font-family: var(--display); }
.faq { display: grid; gap: 12px; }
.faq h4 { margin: 0 0 2px; font: 600 15px/1.3 var(--display); }
.faq p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------- Market: launched elements ---------- */
.market { display: grid; gap: 10px; min-width: 0; }
.mkt-head { display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: baseline; }
.mkt-head h3 { margin: 0; font: 700 20px/1.2 var(--display); }
.mkt-head .muted { font: 400 12px/1.4 var(--mono); }
.mkt-empty { margin: 0; padding: 18px; border: 1px dashed var(--line); border-radius: 8px; }
.mkt { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 14px; align-items: start; }
.mkt-list { list-style: none; margin: 0; padding: 6px; display: grid; gap: 2px; max-height: 520px; overflow-y: auto;
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.mkt-row {
  width: 100%; display: grid; grid-template-columns: 22px 34px minmax(0, 1fr) auto; gap: 10px; align-items: center; text-align: left;
  padding: 6px 8px; border: 1px solid transparent; border-radius: 6px; background: none; cursor: pointer;
}
.mkt-row:hover { background: var(--panel-2); }
.mkt-row[aria-pressed="true"] { border-color: var(--beam); background: color-mix(in srgb, var(--beam) 10%, var(--panel)); }
.mkt-row .rank { font: 500 11px/1 var(--mono); color: var(--muted); text-align: right; font-variant-numeric: tabular-nums; }
.chipcell.sm { width: 34px; height: 34px; font-size: 14px; cursor: inherit; }
.mkt-name { min-width: 0; display: grid; }
.mkt-name b { font: 600 14px/1.2 var(--display); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mkt-name small { font: 400 11px/1.3 var(--mono); color: var(--muted); }
.mkt-cap { display: grid; justify-items: end; font: 500 13px/1.3 var(--mono); font-variant-numeric: tabular-nums; }
.chg { font: 500 11px/1.3 var(--mono); margin-left: 6px; }
.mkt-cap .chg { margin-left: 0; }
.chg.up { color: var(--good); }
.chg.down { color: var(--bad); }
.mkt-chart { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; min-width: 0; }
.mkt-chart-head { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.mkt-title { display: grid; min-width: 0; flex: 1 1 160px; }
.mkt-title b { font: 700 18px/1.2 var(--display); }
.mkt-title small { font: 400 12px/1.4 var(--mono); color: var(--muted); }
.mkt-big { display: grid; justify-items: end; }
.mkt-big small { font: 500 10px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.mkt-big b { font: 700 22px/1.2 var(--display); font-variant-numeric: tabular-nums; }
.mkt-big .chg { margin-left: 0; }
.mkt-body { position: relative; height: 440px; background: var(--panel); }
.mkt-body iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.mkt-wait { height: 100%; display: grid; place-content: center; justify-items: center; gap: 8px; text-align: center; padding: 20px; color: var(--muted); }
.mkt-wait p { margin: 0; max-width: 42ch; }
.demo-chart { display: block; width: 100%; height: calc(100% - 34px); }
.demo-note { margin: 0; padding: 8px 14px; font-size: 12px; }
.mcap { margin: 0; font: 500 13px/1.4 var(--mono); color: var(--muted); }
.mcap b { color: var(--ink); font-size: 15px; }
.linkbtn { border: 0; background: none; padding: 0; color: var(--beam); cursor: pointer; font: inherit; text-decoration: underline; }
.feed .when b { display: block; color: var(--ink); font-size: 13px; text-align: right; }
.feed .when .chg { display: block; margin: 2px 0 0; text-align: right; }

/* ---------- Navigation ---------- */
.nav { display: flex; gap: 2px; border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.nav button {
  border: 0; background: none; cursor: pointer; padding: 10px 14px 9px; white-space: nowrap;
  font: 600 15px/1 var(--display); color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.nav button:hover { color: var(--ink); }
.nav button[aria-current="page"] { color: var(--ink); border-bottom-color: var(--beam); }
.nav .ct { font: 500 11px var(--mono); color: var(--beam); margin-left: 6px; }
.view { display: grid; gap: 18px; min-width: 0; }

.castrip {
  display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: center; padding: 8px 12px; border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--beam) 45%, var(--line)); background: color-mix(in srgb, var(--beam) 8%, var(--panel));
}
.castrip b { font: 600 14px/1 var(--display); }
.castrip code { font: 500 13px/1.3 var(--mono); overflow-wrap: anywhere; min-width: 0; flex: 1 1 220px; user-select: all; }
.castrip .btn { padding: 5px 10px; font-size: 12px; }

/* ---------- Coin ---------- */
.ca-box { display: grid; gap: 10px; max-width: 720px; }
.ca-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.ca-row code {
  font: 500 15px/1.4 var(--mono); padding: 10px 12px; border-radius: 6px; background: var(--panel-2); border: 1px solid var(--line);
  overflow-wrap: anywhere; flex: 1 1 280px; min-width: 0; user-select: all;
}
.ca-links { display: flex; flex-wrap: wrap; gap: 16px; font: 500 13px/1 var(--mono); }

.foot { display: flex; flex-wrap: wrap; gap: 6px 20px; justify-content: space-between; font: 400 12px/1.4 var(--mono); color: var(--muted); }

.toast {
  position: fixed; left: 50%; translate: -50% 0; bottom: calc(18px + env(safe-area-inset-bottom, 0px)); z-index: 30;
  background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 8px; font-size: 14px; max-width: min(520px, calc(100vw - 32px));
  box-shadow: 0 10px 30px -10px #0008;
}

/* ---------- Narrow screens: bench moves above the chart ---------- */
@media (max-width: 1239px) {
  main { display: grid; gap: 18px; }
  .bench { grid-column: auto; grid-row: auto; margin: 0; }
  .how { grid-template-columns: minmax(0, 1fr); }
  .mkt { grid-template-columns: minmax(0, 1fr); }
  .mkt-list { max-height: 320px; }
  .mkt-body { height: 380px; }
}
@media (max-width: 560px) {
  .bench { grid-template-columns: minmax(0, 1fr); }
  .specimen { width: 104px; }
  .specimen .big { font-size: 44px; }
  .bench-nav { margin-left: 0; }
  .legend .rand { margin-left: 0; }
  .nav button { padding: 10px 9px 9px; font-size: 14px; }
  .sheet { padding: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}