/* ============================================================================
   THE KID — raised in public, on Bitcoin time.
   A live report: serif titles, a sans for prose, mono for every number.
   One accent (bitcoin orange). The only playful colour is the subject's LCD.
   ============================================================================ */

:root {
  --bg: #f6f5f2;
  --surface: #ffffff;
  --surface-2: #faf9f7;
  --ink: #141210;
  --ink-2: #3b3833;
  --muted: #6d6a63;
  --rule: #e4e1da;
  --rule-strong: #cfcbc2;
  --accent: #e8780c;
  --accent-ink: #a8540a;
  --accent-soft: #fdf0e2;
  --good: #127a4a;
  --good-soft: #e4f3eb;
  --bad: #b42318;
  --bad-soft: #fbe9e7;
  --lcd: #c4cfa2;
  --lcd-deep: #afbd86;
  --lcd-ink: #223020;

  --f-serif: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --f-sans: "Geist", "Helvetica Neue", "Segoe UI", system-ui, sans-serif;
  --f-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --gut: clamp(16px, 3.4vw, 40px);
  --r: 8px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15.5px/1.6 var(--f-sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
::selection { background: var(--accent-soft); color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
a { color: var(--accent-ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
code, .mono { font-family: var(--f-mono); font-size: .92em; }
code { background: var(--surface-2); border: 1px solid var(--rule); padding: 1px 5px; border-radius: 4px; overflow-wrap: anywhere; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--ink); color: #fff; padding: 8px 12px; border-radius: 6px; }
.skip:focus { left: 8px; }
[hidden] { display: none !important; }
.small { font-size: 13px; color: var(--muted); }
.empty { color: var(--muted); }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.up { color: var(--good); } .down { color: var(--bad); }

/* ------------------------------------------------------------------ mast */
.mast { position: sticky; top: 0; z-index: 20; background: rgba(246, 245, 242, .92); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--rule); }
.mast-inner { max-width: 1120px; margin: 0 auto; padding: 10px var(--gut); display: flex; align-items: center; gap: 18px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-pet { width: 28px; height: 28px; image-rendering: pixelated; transform: translateZ(0); }
.brand-name { font: 700 15px var(--f-mono); letter-spacing: .14em; }
.nav { display: flex; gap: 18px; margin-left: 8px; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--accent-ink); }
.live { margin-left: auto; display: inline-flex; align-items: center; gap: 7px; font: 500 12px var(--f-mono); color: var(--muted); white-space: nowrap; }
.live .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--rule-strong); }
.live.on .dot { background: var(--good); box-shadow: 0 0 0 3px var(--good-soft); }
.live.asleep .dot { background: var(--accent); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 600 14px var(--f-sans); padding: 10px 16px; border-radius: 7px; border: 1px solid transparent; cursor: pointer; text-decoration: none; transition: background .15s, border-color .15s; white-space: nowrap; }
.btn-sm { padding: 7px 12px; font-size: 13px; }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); }
.btn-secondary { background: var(--surface); color: var(--ink); border-color: var(--rule-strong); }
.btn-secondary:hover { border-color: var(--ink-2); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; pointer-events: none; }

/* ------------------------------------------------------------------ layout */
main { max-width: 1120px; margin: 0 auto; padding: 0 var(--gut) 40px; }
.hero { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 28px 40px; padding: 48px 0 36px; align-items: center; }
.kicker { font: 500 12px var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-ink); margin: 0 0 12px; }
h1 { font: 600 clamp(32px, 4.6vw, 52px)/1.08 var(--f-serif); letter-spacing: -.015em; margin: 0 0 16px; }
.lede { font-size: 17px; color: var(--ink-2); margin: 0 0 22px; max-width: 60ch; }
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; }

.subject { margin: 0; justify-self: center; width: min(100%, 360px); }
.lcd-frame { background: #2a2925; border-radius: 22px; padding: 14px 14px 12px; box-shadow: 0 18px 40px -22px rgba(20, 18, 16, .55), inset 0 0 0 1px #3c3a35; }
.lcd-top, .lcd-bottom { display: flex; justify-content: space-between; font: 500 11px var(--f-mono); letter-spacing: .12em; color: #c9c4b8; padding: 2px 6px 8px; }
.lcd-bottom { padding: 8px 6px 0; }
.lcd-screen { background: var(--lcd); border-radius: 10px; border: 2px solid var(--lcd-deep); padding: 10px 8px 6px; }
#lcd { display: block; width: 100%; height: auto; image-rendering: pixelated; transform: translateZ(0); }

.kpis { grid-column: 1 / -1; margin: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: var(--r); overflow: hidden; }
.kpi { background: var(--surface); padding: 12px 14px; min-width: 0; display: grid; align-content: start; gap: 3px; }
.kpi dt { font: 500 11px var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.kpi dd { margin: 0; font: 500 22px/1.2 var(--f-mono); font-variant-numeric: tabular-nums; letter-spacing: -.01em; overflow-wrap: anywhere; }
.kpi small { font-size: 12px; color: var(--muted); }

.sec { padding: 40px 0 8px; border-top: 1px solid var(--rule); margin-top: 8px; }
.sec-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 8px; }
.sec-n { font: 500 13px var(--f-mono); color: var(--accent-ink); min-width: 22px; }
h2 { font: 600 28px/1.2 var(--f-serif); margin: 0; letter-spacing: -.01em; }
h3 { font: 600 15px var(--f-sans); margin: 0 0 10px; }
h3.sub { margin-top: 26px; }
.sec-lede { color: var(--ink-2); max-width: 70ch; margin: 0 0 18px; }
.note { font-size: 13px; color: var(--muted); margin: 10px 0 0; }
.pill { display: inline-block; font: 500 11px var(--f-mono); letter-spacing: .06em; text-transform: uppercase; padding: 3px 8px; border-radius: 999px; background: var(--surface-2); color: var(--muted); border: 1px solid var(--rule-strong); white-space: nowrap; }
.pill.good { background: var(--good-soft); color: var(--good); border-color: #c7e5d3; }
.pill.accent { background: var(--accent-soft); color: var(--accent-ink); border-color: #f3d3ae; }
.card { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); padding: 16px; min-width: 0; }

/* ------------------------------------------------------------------ chat */
.console { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); overflow: hidden; }
.transcript { list-style: none; margin: 0; padding: 16px; display: grid; gap: 12px; max-height: 420px; min-height: 180px; overflow-y: auto; }
.msg { display: grid; gap: 3px; max-width: 82%; }
.msg .who { font: 500 11px var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.msg .text { padding: 10px 13px; border-radius: 10px; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.you { justify-self: end; } .msg.you .who { text-align: right; }
.msg.you .text { background: var(--ink); color: #fff; border-bottom-right-radius: 3px; }
.msg.kid .text { background: var(--surface-2); border: 1px solid var(--rule); border-bottom-left-radius: 3px; font-family: var(--f-mono); font-size: 14px; }
.msg.kid .text .cont { color: var(--accent-ink); }
.msg.sys .text { background: none; color: var(--muted); padding: 0; font-size: 13px; }
.msg .meta { font: 11px var(--f-mono); color: var(--muted); }
.console-input { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--rule); background: var(--surface-2); }
.console-input input { flex: 1; min-width: 0; font: 15px var(--f-sans); padding: 10px 12px; border: 1px solid var(--rule-strong); border-radius: 7px; background: #fff; }
.presets { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 12px 12px; background: var(--surface-2); }
.presets button { font: 13px var(--f-sans); padding: 5px 10px; border-radius: 999px; border: 1px solid var(--rule-strong); background: #fff; cursor: pointer; color: var(--ink-2); }
.presets button:hover { border-color: var(--accent); color: var(--accent-ink); }
.typing::after { content: "▍"; animation: blink 1s steps(2) infinite; color: var(--muted); }
@keyframes blink { 50% { opacity: 0; } }

/* ------------------------------------------------------------------ pocket money */
.pocket-grid, .st-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-bottom: 14px; }
.big { font: 500 28px/1.15 var(--f-mono); font-variant-numeric: tabular-nums; margin: 0 0 4px; }
.coin { display: inline-flex; align-items: center; gap: 8px; font: 600 15px var(--f-mono); }
.coin img, .coin .dot-icon { width: 22px; height: 22px; border-radius: 50%; background: var(--surface-2); border: 1px solid var(--rule); object-fit: cover; }
.facts { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin: 10px 0 0; font-size: 14px; }
.facts dt { color: var(--muted); } .facts dd { margin: 0; font-family: var(--f-mono); font-size: 13.5px; overflow-wrap: anywhere; }
.odds { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 5px; }
.odds li { display: grid; grid-template-columns: 76px 1fr 52px; gap: 8px; align-items: center; font: 12.5px var(--f-mono); }
.odds .bar { height: 8px; border-radius: 4px; background: var(--surface-2); border: 1px solid var(--rule); overflow: hidden; }
.odds .bar span { display: block; height: 100%; background: var(--rule-strong); }
.odds li.pick { font-weight: 600; } .odds li.pick .bar span { background: var(--accent); }
.odds .p { text-align: right; color: var(--muted); }
.said { margin: 12px 0 0; padding: 10px 12px; background: var(--surface-2); border-left: 3px solid var(--accent); font: 13.5px var(--f-mono); border-radius: 0 6px 6px 0; overflow-wrap: anywhere; }

.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data caption { padding: 12px 14px 4px; font-weight: 600; color: var(--ink); }
table.data th { font: 500 11px var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--rule); white-space: nowrap; }
table.data td { padding: 9px 14px; border-bottom: 1px solid var(--rule); vertical-align: top; }
table.data tr:last-child td { border-bottom: 0; }
table.data .num { text-align: right; font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
table.data td.mono, table.data .k { font-family: var(--f-mono); font-size: 13px; }
table.data .k { color: var(--muted); }

details.more { margin-top: 14px; background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); padding: 0 16px; }
details.more summary { cursor: pointer; padding: 12px 0; font-weight: 600; list-style: none; }
details.more summary::-webkit-details-marker { display: none; }
details.more summary::before { content: "+"; display: inline-block; width: 18px; font-family: var(--f-mono); color: var(--accent-ink); }
details.more[open] summary::before { content: "−"; }
details.more > :not(summary) { margin-top: 0; }
details.more ul { margin: 0 0 14px; padding-left: 20px; display: grid; gap: 6px; }
details.more p { margin: 0 0 14px; color: var(--ink-2); }
details.more .table-wrap { margin-bottom: 14px; }

/* ------------------------------------------------------------------ show and tell */
.st-form { display: grid; gap: 10px; align-content: start; }
.st-form label { font-size: 13px; color: var(--muted); }
.st-form input { font: 14px var(--f-mono); padding: 10px 12px; border: 1px solid var(--rule-strong); border-radius: 7px; width: 100%; }
.st-msg { margin: 0; min-height: 1.4em; font-size: 14px; font-weight: 500; }
.st-msg.good { color: var(--good); } .st-msg.bad { color: var(--bad); }
.st-list { margin: 0; padding-left: 20px; display: grid; gap: 6px; font: 13.5px var(--f-mono); }
.st-list .n { color: var(--muted); }

/* ------------------------------------------------------------------ growing up */
.fig { margin: 0; padding: 14px 16px 12px; background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); display: grid; gap: 10px; min-width: 0; }
.fig svg { display: block; width: 100%; height: auto; }
.fig figcaption { font-size: 13px; color: var(--muted); }
.fig figcaption b { color: var(--ink); }
.fig .axis text { font: 11px var(--f-mono); fill: var(--muted); }
.fig .axis line, .fig .grid line { stroke: var(--rule); }
.fig .loss { fill: none; stroke: var(--ink); stroke-width: 1.6; }
.fig .val { fill: none; stroke: var(--accent); stroke-width: 2; }
.fig .val-dot { fill: var(--accent); }
.fig .lesson line { stroke: var(--accent); stroke-dasharray: 3 3; }
.fig .lesson text { font: 10.5px var(--f-mono); fill: var(--accent-ink); }
.milestones { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.milestones li.m { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r); padding: 12px 14px; display: grid; gap: 4px; }
.milestones .m-h { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; font-weight: 600; }
.milestones .m-h span { font: 12px var(--f-mono); color: var(--muted); font-weight: 400; }
.milestones .m-t { font: 13.5px var(--f-mono); color: var(--ink-2); overflow-wrap: anywhere; }
.milestones .m-t b { color: var(--ink); font-weight: 500; }

/* ------------------------------------------------------------------ token */
.token-card { display: grid; gap: 14px; }
.ca { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.ca .k { font: 500 11px var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.ca code { font-size: 14px; padding: 6px 10px; }

.foot { border-top: 1px solid var(--rule); background: var(--surface); }
.foot-inner { max-width: 1120px; margin: 0 auto; padding: 22px var(--gut) 30px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: center; }
.foot-brand { display: flex; align-items: center; gap: 10px; font: 700 14px var(--f-mono); letter-spacing: .1em; }
.foot-brand em { font: 400 13px var(--f-sans); letter-spacing: 0; color: var(--muted); }

/* ------------------------------------------------------------------ small screens */
@media (max-width: 980px) {
  .nav { display: none; }
  .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .hero { grid-template-columns: minmax(0, 1fr); padding-top: 28px; }
  .subject { order: -1; width: min(100%, 300px); }
  .pocket-grid, .st-grid { grid-template-columns: minmax(0, 1fr); }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .msg { max-width: 92%; }
  .live .js-live { display: none; }
  h2 { font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }