/* Stages (body[data-stage]):
   start - the hero, a market view and the map;
   build - the terms on the left, the product on the right. */

:root {
  --bg: #faf9fc;
  --panel: #ffffff;
  --text: #1c1c1e;
  --muted: #6e6e75;
  --faint: #a3a3a9;
  --border: #e6e2ec;
  --accent: #7434d4;
  --accent-soft: #f1eafc;
  --on-accent: #ffffff;
  --event: #d8443a;
  --gain: #2f9e5b;
  --loss: #c2413a;
  --ink-line: #b9b9bd;
  --grid: #efecf3;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 8px 24px rgb(0 0 0 / 0.06);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius: 14px;
  /* One tone per map category. */
  --cp: #2c6aa8;
  --ye: #2f7d5b;
  --pa: #c27a12;
  --cr: #8a4fb8;
  --le: #c2413a;
  --y-key: #2c6aa8;
  --y-str: #2f7d5b;
  --y-num: #9a5b00;
  --y-com: #8a8a90;
  --y-con: #b03a72;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141416;
    --panel: #1d1d20;
    --text: #ececef;
    --muted: #a0a0a8;
    --faint: #6a6a72;
    --border: #313136;
    --accent: #b08af2;
    --accent-soft: #2b2240;
    --on-accent: #1a1022;
    --event: #ff6b61;
    --gain: #4cc47f;
    --loss: #ff7b70;
    --ink-line: #55555c;
    --grid: #26262a;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.35);
    --cp: #7fb2e8;
    --ye: #7fcf9f;
    --pa: #e6b45a;
    --cr: #c79af0;
    --le: #ff7b70;
    --y-key: #7fb2e8;
    --y-str: #7fcf9f;
    --y-num: #e6b45a;
    --y-com: #77777f;
    --y-con: #f08cbc;
  }
}
:root[data-theme="dark"] {
  --bg: #141416;
  --panel: #1d1d20;
  --text: #ececef;
  --muted: #a0a0a8;
  --faint: #6a6a72;
  --border: #313136;
  --accent: #b08af2;
  --accent-soft: #2b2240;
  --on-accent: #1a1022;
  --event: #ff6b61;
  --gain: #4cc47f;
  --loss: #ff7b70;
  --ink-line: #55555c;
  --grid: #26262a;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.35);
  --cp: #7fb2e8;
  --ye: #7fcf9f;
  --pa: #e6b45a;
  --cr: #c79af0;
  --le: #ff7b70;
  --y-key: #7fb2e8;
  --y-str: #7fcf9f;
  --y-num: #e6b45a;
  --y-com: #77777f;
  --y-con: #f08cbc;
}
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
code, pre { font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace; font-size: 0.9em; }
button, select, input {
  font: inherit;
  color: var(--text);
}
button {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background 160ms var(--ease), border-color 160ms var(--ease), transform 160ms var(--ease), opacity 160ms;
}
button:hover:not(:disabled) { border-color: var(--faint); }
button:active:not(:disabled) { transform: scale(0.97); }
button:disabled { opacity: 0.45; cursor: default; }
button:focus-visible, textarea:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
button.quiet { border-color: transparent; background: transparent; color: var(--muted); }
button.quiet:hover { color: var(--text); }
button.icon { width: 38px; height: 38px; padding: 0; display: grid; place-items: center; border-radius: 50%; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* -- Top bar -------------------------------------------------------------------------------- */
.topbar {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 4px; }
.brand { display: flex; align-items: center; border: none; background: none; padding: 2px 4px; }
.wordmark { display: inline-flex; align-items: baseline; font-weight: 650; letter-spacing: -0.02em; line-height: 1; }
.brand .wordmark { font-size: 21px; }
.wordmark .mark { width: 0.9em; height: 0.9em; margin-right: 0.12em; overflow: visible; translate: 0 0.1em; }
.mark .hub { fill: var(--accent); }
.wordmark .lab { color: var(--accent); }
body[data-stage="start"] .brand { visibility: hidden; }
body[data-stage="start"] .topbar { border-bottom-color: transparent; }
.topnav { display: flex; align-items: center; gap: 2px; margin-right: 6px; padding-right: 8px; border-right: 1px solid var(--border); }
.topnav .short { display: none; }
@media (max-width: 560px) {
  .topnav .long { display: none; }
  .topnav .short { display: inline; }
  .topbar .ledger { display: none; }
}
.theme-icon { display: none; }
.theme-toggle[data-theme="system"] .is-system,
.theme-toggle[data-theme="light"] .is-light,
.theme-toggle[data-theme="dark"] .is-dark { display: block; }
.ledger {
  display: inline-flex; align-items: center; gap: 7px;
  margin-left: 6px; padding: 5px 11px;
  border: 1px solid var(--border); border-radius: 999px;
  color: var(--muted); font-size: 13px; white-space: nowrap;
}
.live { width: 7px; height: 7px; border-radius: 50%; background: var(--gain); box-shadow: 0 0 0 3px color-mix(in srgb, var(--gain) 20%, transparent); }

/* -- Library -------------------------------------------------------------------------------- */
.library {
  position: fixed; z-index: 40; top: 0; bottom: 0; left: 0;
  width: min(320px, 86vw);
  background: var(--panel); border-right: 1px solid var(--border); box-shadow: var(--shadow);
  padding: 14px; overflow-y: auto;
}
.library-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.library ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.library li { display: flex; align-items: center; gap: 4px; }
.library li .open { flex: 1; text-align: left; border-color: transparent; display: grid; gap: 1px; padding: 8px 10px; }
.library li .open:hover { background: var(--accent-soft); }
.library li .open small { color: var(--muted); }
.library li .remove { opacity: 0.6; }
.library-empty { color: var(--muted); font-size: 14px; }
.library-backdrop { position: fixed; inset: 0; z-index: 30; background: rgb(0 0 0 / 0.18); }

/* -- Start ---------------------------------------------------------------------------------- */
main { flex: 1; display: flex; flex-direction: column; width: 100%; }
.start, .build { display: none; }
body[data-stage="start"] .start { display: block; }
body[data-stage="build"] .build { display: grid; }

.hero { max-width: 760px; margin: 0 auto; padding: 28px 16px 10px; text-align: center; }
.hero-logo { margin: 0 0 12px; font-size: 56px; }
@media (max-width: 520px) { .hero-logo { font-size: 46px; } }
.tagline { margin: 0; font-size: 22px; font-weight: 600; letter-spacing: -0.01em; }
.subline { margin: 8px auto 22px; max-width: 600px; color: var(--muted); }

.composer {
  text-align: left;
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 10px 10px 8px 14px;
}
.composer textarea {
  width: 100%; border: none; background: none; resize: none; outline: none;
  font: inherit; color: var(--text); padding: 4px 0;
}
.composer-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.example { display: flex; align-items: center; gap: 8px; min-width: 0; border-color: transparent; background: none; color: var(--muted); padding: 4px 6px; text-align: left; }
.example-label { font-size: 12px; font-weight: 600; color: var(--accent); background: var(--accent-soft); border-radius: 6px; padding: 1px 7px; flex: none; }
.example-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
button.action { background: var(--accent); border-color: var(--accent); color: var(--on-accent); flex: none; }

.answer { text-align: left; margin: 12px 0 0; padding: 12px 14px; border-radius: var(--radius); background: var(--accent-soft); font-size: 14px; }
.answer p { margin: 0 0 8px; }
.answer .picks { display: flex; flex-wrap: wrap; gap: 6px; }
.answer .pick { border-color: transparent; }
.answer .pick b { font-variant-numeric: tabular-nums; margin-right: 4px; color: var(--muted); font-weight: 600; }

.views { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin: 18px 0 4px; }
.chip {
  border-radius: 999px; padding: 5px 12px; font-size: 14px; color: var(--muted);
}
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }

.map {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px;
  max-width: 1320px; margin: 18px auto 0; padding: 0 16px 28px; width: 100%;
}
@media (max-width: 1100px) { .map { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 760px) { .map { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .map { grid-template-columns: minmax(0, 1fr); } }
.column { display: flex; flex-direction: column; gap: 8px; }
.column-head { padding: 0 2px 4px; border-bottom: 2px solid var(--tone); margin-bottom: 2px; }
.column-head h2 { margin: 0; font-size: 15px; display: flex; gap: 8px; align-items: baseline; }
.column-head h2 span { color: var(--tone); font-variant-numeric: tabular-nums; }
.column-head p { margin: 2px 0 6px; font-size: 12.5px; color: var(--muted); line-height: 1.4; }
.card {
  display: grid; grid-template-columns: 1fr 64px; gap: 2px 10px; align-items: center;
  text-align: left; padding: 10px 10px 10px 12px; border-radius: 12px;
  border-left: 3px solid var(--tone);
  transition: opacity 200ms var(--ease), transform 160ms var(--ease), border-color 160ms, box-shadow 200ms;
}
.card:hover { box-shadow: var(--shadow); }
.card .card-code { font-size: 12px; color: var(--tone); font-weight: 650; font-variant-numeric: tabular-nums; }
.card .name { font-size: 14px; font-weight: 550; line-height: 1.3; grid-column: 1; }
.card svg { grid-row: 1 / span 2; grid-column: 2; width: 64px; height: 40px; overflow: visible; }
.card.dim { opacity: 0.32; }
.card.hit { box-shadow: 0 0 0 2px var(--accent); }
.tone-cp { --tone: var(--cp); }
.tone-ye { --tone: var(--ye); }
.tone-pa { --tone: var(--pa); }
.tone-cr { --tone: var(--cr); }
.tone-le { --tone: var(--le); }
.spark .axis { stroke: var(--ink-line); stroke-width: 1; }
.spark .plain { stroke: var(--tone); stroke-width: 2; fill: none; }
.spark .event { stroke: var(--tone); stroke-width: 1.5; fill: none; stroke-dasharray: 3 3; opacity: 0.7; }

/* -- Build ---------------------------------------------------------------------------------- */
.build { grid-template-columns: 360px minmax(0, 1fr); flex: 1; min-height: 0; }
@media (max-width: 900px) { .build { grid-template-columns: minmax(0, 1fr); } }
.terms { border-right: 1px solid var(--border); padding: 14px 16px 24px; overflow-y: auto; }
@media (max-width: 900px) { .terms { border-right: none; border-bottom: 1px solid var(--border); } }
.product-head { display: flex; gap: 6px; align-items: flex-start; margin: 0 0 12px -8px; }
.product-head h2 { margin: 0; font-size: 19px; line-height: 1.25; letter-spacing: -0.01em; }
.product-cat { margin: 4px 0 2px; font-size: 13px; color: var(--tone); font-weight: 600; }

.params, .life-terms { display: grid; gap: 12px; }
.life-terms { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--border); }
.field { display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; align-items: center; }
.field-label { font-size: 14px; font-weight: 550; }
.field-help { grid-column: 1 / -1; font-size: 12.5px; color: var(--muted); line-height: 1.4; }
.field input[type="range"] { grid-column: 1 / -1; width: 100%; accent-color: var(--accent); margin: 2px 0; }
.field .num { display: inline-flex; align-items: center; gap: 4px; }
.field input[type="number"] {
  width: 84px; text-align: right; padding: 4px 8px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--panel); font-variant-numeric: tabular-nums;
}
.field .unit { color: var(--muted); font-size: 13px; }
.field select { padding: 4px 8px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel); }
.segmented { display: inline-flex; border: 1px solid var(--border); border-radius: 10px; padding: 2px; gap: 2px; }
.segmented button { border: none; padding: 3px 12px; border-radius: 8px; background: none; color: var(--muted); }
.segmented button[aria-pressed="true"] { background: var(--accent-soft); color: var(--text); font-weight: 550; }

.warnings { margin: 14px 0 0; padding: 10px 12px 10px 28px; border-radius: 10px; background: color-mix(in srgb, var(--event) 12%, transparent); font-size: 13.5px; }
.sspa { margin-top: 16px; border-top: 1px solid var(--border); padding-top: 10px; font-size: 13.5px; }
.sspa summary { cursor: pointer; font-weight: 600; color: var(--muted); }
.sspa h3 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--faint); margin: 12px 0 4px; }
.sspa ul { margin: 0; padding-left: 18px; color: var(--muted); }
.sspa li { margin: 2px 0; }
.term-actions { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }

.result { padding: 10px 18px 24px; min-width: 0; }
.tabs { display: flex; align-items: center; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 12px; flex-wrap: wrap; }
.tabs [role="tab"] { border: none; background: none; border-radius: 0; padding: 8px 12px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs [role="tab"][aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); font-weight: 550; }
.summary { margin-left: auto; font-size: 13.5px; color: var(--muted); font-variant-numeric: tabular-nums; padding: 6px 0; }
.summary b { color: var(--text); }
.tab-lede { margin: 0 0 10px; color: var(--muted); font-size: 14px; }

.chart { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 8px; position: relative; }
.chart svg { display: block; width: 100%; height: auto; touch-action: none; }
.chart .grid line { stroke: var(--grid); }
.chart .axis line, .chart .axis path { stroke: var(--ink-line); }
.chart text { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .ref { stroke: var(--ink-line); stroke-dasharray: 2 4; fill: none; stroke-width: 1.5; }
.chart .plain { stroke: var(--accent); stroke-width: 2.5; fill: none; }
.chart .event { stroke: var(--event); stroke-width: 2; fill: none; stroke-dasharray: 6 5; }
.chart .level { stroke-width: 1; stroke-dasharray: 4 4; }
.chart .level.strike { stroke: var(--muted); }
.chart .level.barrier { stroke: var(--event); }
.chart .level-label { font-size: 11px; }
.chart .level-label.barrier { fill: var(--event); }
.chart .cursor line { stroke: var(--faint); }
.chart .cursor circle { fill: var(--panel); stroke: var(--accent); stroke-width: 2; }
.chart .cursor .e { stroke: var(--event); }
.chart .now { fill: var(--accent); }
.readout {
  position: absolute; pointer-events: none; padding: 6px 9px; border-radius: 8px;
  background: var(--panel); border: 1px solid var(--border); box-shadow: var(--shadow);
  font-size: 12.5px; font-variant-numeric: tabular-nums; white-space: nowrap;
}
.readout .e { color: var(--event); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 10px 2px 0; font-size: 13px; color: var(--muted); }
.legend i { display: inline-block; width: 18px; height: 0; border-top: 2.5px solid var(--accent); vertical-align: middle; margin-right: 6px; }
.legend i.event { border-top: 2px dashed var(--event); }
.legend i.ref { border-top: 1.5px dotted var(--ink-line); }
.legend i.barrier { border-top: 1px dashed var(--event); }

.life .path { stroke: var(--text); stroke-width: 2; fill: none; }
.life .fix { fill: var(--panel); stroke: var(--text); stroke-width: 2; cursor: ns-resize; }
.life .fix.first { cursor: default; stroke: var(--faint); }
.life .fix.touch { stroke: var(--event); fill: var(--event); }
.life .fix:hover:not(.first), .life .fix.drag { stroke: var(--accent); stroke-width: 3; }
.life .pay { fill: var(--accent); }
.life .pay-line { stroke: var(--accent); stroke-width: 1.5; }
.life .credit { stroke: var(--event); stroke-width: 1.5; }
.life .credit-label { fill: var(--event); font-weight: 600; }
.life-tools { display: flex; flex-wrap: wrap; gap: 4px; margin: 8px 0 4px; }

.flows { list-style: none; margin: 12px 0 0; padding: 0; position: relative; }
.flows li { display: grid; grid-template-columns: 82px 18px 1fr auto; gap: 8px; align-items: center; padding: 5px 0; font-size: 14px; }
.flows .when { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }
.flows .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); justify-self: center; }
.flows .dot.zero { background: none; border: 2px solid var(--faint); }
.flows .dot.event { background: var(--event); }
.flows .amount { font-variant-numeric: tabular-nums; font-weight: 550; text-align: right; }
.flows li.total { border-top: 1px solid var(--border); margin-top: 6px; padding-top: 10px; font-weight: 650; }
.flows li.total .amount { font-size: 16px; }
.flows .gain { color: var(--gain); }
.flows .loss { color: var(--loss); }

.legs { display: flex; flex-wrap: wrap; align-items: stretch; gap: 8px; }
.leg {
  display: grid; grid-template-rows: auto 1fr; gap: 6px; width: 190px;
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px;
}
.leg svg { width: 100%; height: 56px; overflow: visible; }
.leg svg .axis { stroke: var(--ink-line); }
.leg svg .shape { stroke: var(--tone, var(--accent)); stroke-width: 2.5; fill: none; }
.leg p { margin: 0; font-size: 13.5px; line-height: 1.35; }
.leg-op { align-self: center; font-size: 20px; color: var(--faint); }
.leg.sum { border-style: dashed; }
.impl { margin-top: 16px; font-size: 14px; color: var(--muted); max-width: 760px; }
.impl code { color: var(--text); }

.editor { position: relative; }
.code {
  margin: 0; padding: 14px 16px; overflow: auto; max-height: 68vh;
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 12.5px; line-height: 1.55; tab-size: 2;
}
.code .k { color: var(--y-key); }
.code .s { color: var(--y-str); }
.code .n { color: var(--y-num); }
.code .c { color: var(--y-com); font-style: italic; }
.code .t { color: var(--y-con); }
.editor-tools { position: absolute; top: 8px; right: 10px; display: flex; gap: 4px; }
.icon-button { width: 32px; height: 32px; padding: 0; display: grid; place-items: center; background: var(--panel); }
.icon-button .i-done { display: none; }
.icon-button.done .i-copy { display: none; }
.icon-button.done .i-done { display: block; color: var(--gain); }

/* -- Dialog, toast, footer ------------------------------------------------------------------ */
.how {
  max-width: 600px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--panel); color: var(--text); box-shadow: var(--shadow); padding: 20px 24px;
}
.how::backdrop { background: rgb(0 0 0 / 0.3); }
.how h2 { margin: 0 0 10px; }
.how p { margin: 0 0 10px; }
.how .fine { color: var(--muted); font-size: 13px; }
.how .close { position: absolute; top: 10px; right: 10px; }
.toast {
  position: fixed; bottom: 20px; left: 50%; translate: -50% 0; z-index: 50;
  background: var(--text); color: var(--bg); padding: 8px 14px; border-radius: 10px; font-size: 14px;
  box-shadow: var(--shadow);
}
.site-foot { margin-top: auto; padding: 14px 16px; color: var(--faint); font-size: 12.5px; text-align: center; }
.site-foot a { color: inherit; }