/* =========================================================
   F8 Forex — "After Hours" terminal stylesheet
   Sections: TOKENS · LEVELS · BASE · COMPONENTS · SHELL · HEADER · COURSE CHART · CHARTS · DOCK · ACCOUNT · PAYWALL · PRINT
   ========================================================= */

/* == TOKENS == */
:root {
  --bg:#FFFFFF; --panel:#F5F6F8; --raise:#FFFFFF; --line:#E3E5EA; --line-2:#C9CDD6; --field:#8C909C; --grid:#EEF0F3;
  --ink-hi:#12141A; --ink:#12141A; --ink-2:#3A4050; --muted:#5D6475;
  --accent:#F5B841; --on-accent:#12141A; --accent-tx:#7A5400;
  --bull:#0B8F70; --bear:#E0424B; --bull-tx:#0A7059; --bear-tx:#C62F3A;
  --warn:#F5B841; --warn-tx:#7A5400;
  --ind1:#2A62C9; --ind2:#B04310; --ind3:#6A4BDB; --ind4:#007C91;
  --note-bg:#E7F6F1; --warn-bg:#FFF5DC; --danger-bg:#FDECEE; --info-bg:#EAF1FF;
  --zone:rgba(11,143,112,.08); --rzone:rgba(224,66,75,.08);
  --tag-ink:#FFFFFF; --hollow:#C3C8D2;
  --overlay:rgba(18,20,26,.45); --shadow-pop:0 20px 40px -24px rgba(18,20,26,.35);
  --mark-bg:#12141A; --mark-fg:#FFFFFF; --mark-bull:#22C39A; --mark-ring:#12141A;
  --display:"Archivo","Arial Narrow",system-ui,sans-serif;
  --font:"Atkinson Hyperlegible Next","Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --measure:34em;
  --dur-fast:150ms; --dur:250ms; --dur-slow:450ms;
  --ease-out:cubic-bezier(.2,.8,.2,1); --ease-spring:cubic-bezier(.3,1.6,.5,1);
  --topbar-h:52px; --rail-w:272px; --dock-w:360px; --tabbar-h:64px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:#0D0F14; --panel:#161922; --raise:#1F2330; --line:#232836; --line-2:#343A4A; --field:#4A5163; --grid:#1C2029;
    --ink-hi:#F3F4F7; --ink:#F3F4F7; --ink-2:#C4C9D4; --muted:#9AA1B2;
    --on-accent:#0D0F14; --accent-tx:#F5B841;
    --bull:#22C39A; --bear:#F2545B; --bull-tx:#22C39A; --bear-tx:#F2545B; --warn-tx:#F5B841;
    --ind1:#3D8BFF; --ind2:#FF8A3D; --ind3:#A58BFF; --ind4:#3CC8DC;
    --note-bg:#12241F; --warn-bg:#2A2414; --danger-bg:#2D1A1F; --info-bg:#16213A;
    --zone:rgba(34,195,154,.10); --rzone:rgba(242,84,91,.12);
    --tag-ink:#0D0F14; --hollow:#3A4050;
    --overlay:rgba(0,0,0,.5); --shadow-pop:0 20px 40px -20px rgba(0,0,0,.6);
    --mark-bg:#1F2330; --mark-fg:#F3F4F7; --mark-bull:#22C39A; --mark-ring:#1F2330;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg:#0D0F14; --panel:#161922; --raise:#1F2330; --line:#232836; --line-2:#343A4A; --field:#4A5163; --grid:#1C2029;
  --ink-hi:#F3F4F7; --ink:#F3F4F7; --ink-2:#C4C9D4; --muted:#9AA1B2;
  --on-accent:#0D0F14; --accent-tx:#F5B841;
  --bull:#22C39A; --bear:#F2545B; --bull-tx:#22C39A; --bear-tx:#F2545B; --warn-tx:#F5B841;
  --ind1:#3D8BFF; --ind2:#FF8A3D; --ind3:#A58BFF; --ind4:#3CC8DC;
  --note-bg:#12241F; --warn-bg:#2A2414; --danger-bg:#2D1A1F; --info-bg:#16213A;
  --zone:rgba(34,195,154,.10); --rzone:rgba(242,84,91,.12);
  --tag-ink:#0D0F14; --hollow:#3A4050;
  --overlay:rgba(0,0,0,.5); --shadow-pop:0 20px 40px -20px rgba(0,0,0,.6);
  --mark-bg:#1F2330; --mark-fg:#F3F4F7; --mark-bull:#22C39A; --mark-ring:#1F2330;
  color-scheme: dark;
}

/* == LEVELS == (body[data-level] and every watchlist tile, course-chart code and tooltip) */
[data-level="beginner"]    { --lv:#3D8BFF; --lv-tx:#2A62C9; --lv-tint:#EEF3FF; }
[data-level="technical"]   { --lv:#A58BFF; --lv-tx:#5232C2; --lv-tint:#F4F1FF; }
[data-level="fundamental"] { --lv:#FF8A3D; --lv-tx:#B04310; --lv-tint:#FFF4EC; }
[data-level="risk"]        { --lv:#EC6A8C; --lv-tx:#B83A62; --lv-tint:#FFF0F4; }
[data-level="advanced"]    { --lv:#F5B841; --lv-tx:#7A5400; --lv-tint:#FFF8E6; }
[data-level="reference"]   { --lv:#9AA1B2; --lv-tx:#5D6475; --lv-tint:#F5F6F8; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) [data-level] { --lv-tx: var(--lv); }
  :root:not([data-theme="light"]) [data-level="beginner"]    { --lv-tint:#0F1626; }
  :root:not([data-theme="light"]) [data-level="technical"]   { --lv-tint:#141123; }
  :root:not([data-theme="light"]) [data-level="fundamental"] { --lv-tint:#1B130D; }
  :root:not([data-theme="light"]) [data-level="risk"]        { --lv-tint:#1C1016; }
  :root:not([data-theme="light"]) [data-level="advanced"]    { --lv-tint:#17140C; }
  :root:not([data-theme="light"]) [data-level="reference"]   { --lv-tint:#14161B; }
}
:root[data-theme="dark"] [data-level] { --lv-tx: var(--lv); }
:root[data-theme="dark"] [data-level="beginner"]    { --lv-tint:#0F1626; }
:root[data-theme="dark"] [data-level="technical"]   { --lv-tint:#141123; }
:root[data-theme="dark"] [data-level="fundamental"] { --lv-tint:#1B130D; }
:root[data-theme="dark"] [data-level="risk"]        { --lv-tint:#1C1016; }
:root[data-theme="dark"] [data-level="advanced"]    { --lv-tint:#17140C; }
:root[data-theme="dark"] [data-level="reference"]   { --lv-tint:#14161B; }

/* == BASE == */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 16px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.6 var(--font); font-variant-numeric: tabular-nums;
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out); }
a { color: var(--accent-tx); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
img, svg { max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent-tx); outline-offset: 2px; border-radius: 4px; }
::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--accent); color: var(--on-accent); padding: 8px 14px; border-radius: 8px; font-weight: 700; }
.skip-link:focus { left: 8px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.label, .crumb { font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }

.main h1, .unlock-page h1, .solo h1 { font: 900 40px/.92 var(--display); font-stretch: 125%; letter-spacing: -.01em; color: var(--ink-hi); margin: 6px 0 18px; }
.main h1 .hl, .lesson-head h1 .hl { color: inherit; }
.main h2 { font: 800 24px/1.1 var(--display); font-stretch: 112%; color: var(--ink-hi); margin: 40px 0 12px; }
.main h3 { font: 700 19px/1.3 var(--font); color: var(--ink-hi); margin: 26px 0 8px; }
.main h4 { font: 700 16.5px/1.35 var(--font); color: var(--ink-hi); margin: 18px 0 6px; }
.main p, .main li { max-width: var(--measure); }
.main p { color: var(--ink-2); }
.main hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
.lead { font-size: 18.5px; line-height: 1.55; color: var(--ink) !important; }
strong, b { color: var(--ink-hi); font-weight: 700; }
code, .code, kbd { font-family: var(--mono); font-size: .86em; }
code, .code { background: var(--panel); color: var(--ink-hi); padding: 1px 6px; border-radius: 5px; box-shadow: inset 0 0 0 1px var(--line); }
kbd { border: 1px solid var(--line-2); border-radius: 4px; padding: 0 5px; background: var(--panel); }
pre { margin: 0; font: 13.5px/1.7 var(--mono); color: var(--ink); overflow-x: auto; }
pre code { background: none; padding: 0; color: inherit; box-shadow: none; }
pre strong { color: var(--bull-tx); }
.up { color: var(--bull-tx); font-weight: 700; } .down { color: var(--bear-tx); font-weight: 700; }
.num, .tnum { font-variant-numeric: tabular-nums; }
svg.i { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; flex: none; vertical-align: -3px; }

/* == COMPONENTS == */
/* buttons: primary (gold) · quiet · ghost · danger */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 0 16px; border-radius: 8px; border: 1px solid transparent;
  background: var(--accent); color: var(--on-accent) !important; font: 700 14px var(--font); text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform var(--dur) var(--ease-spring), background-color var(--dur-fast), filter var(--dur-fast); }
.btn:hover { filter: brightness(.94); }
.btn:active { transform: scale(.96); }
.btn.quiet, .btn.dark { background: var(--raise); color: var(--ink-hi) !important; border-color: var(--line-2); }
.btn.ghost { background: transparent; color: var(--ink-hi) !important; border-color: var(--line-2); }
.btn.quiet:hover, .btn.ghost:hover, .btn.dark:hover { filter: none; background: var(--panel); }
.btn.danger { background: transparent; color: var(--bear-tx) !important; border-color: var(--bear); }
.btn.small, .btn.sm { min-height: 32px; padding: 0 12px; font-size: 13px; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .45; pointer-events: none; }
.icon-btn { min-width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--line); background: transparent; color: var(--ink-2); display: inline-grid; place-items: center; cursor: pointer; padding: 0;
  transition: transform var(--dur) var(--ease-spring); }
.icon-btn:hover { background: var(--raise); color: var(--ink-hi); }
.icon-btn:active { transform: scale(.96); }
.pill { display: inline-flex; align-items: center; gap: 6px; font: 600 11.5px var(--mono); padding: 3px 9px; border-radius: 99px; background: var(--panel); color: var(--ink-hi); white-space: nowrap; box-shadow: inset 0 0 0 1px var(--line); }
.pill.bull { background: var(--note-bg); color: var(--bull-tx); }
.chip { display: inline-block; font: 700 9.5px/1 var(--mono); letter-spacing: .08em; padding: 3px 5px; border-radius: 4px; background: var(--accent); color: var(--on-accent); vertical-align: 2px; }
.chip.free { background: var(--panel); color: var(--muted); box-shadow: inset 0 0 0 1px var(--line-2); }
.tk { display: inline-grid; place-items: center; flex: none; width: 38px; height: 28px; border-radius: 6px; font: 700 11px var(--mono); letter-spacing: .04em; color: var(--lv-tx);
  background: color-mix(in srgb, var(--lv) 14%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--lv) 35%, transparent); }

/* callouts */
.note, .tip, .warning, .danger, .info { padding: 12px 16px; margin: 20px 0; border-left: 3px solid var(--bull); border-radius: 0 8px 8px 0; background: var(--note-bg); font-size: 15px; color: var(--ink-2); }
.note p, .tip p, .warning p, .danger p, .info p { color: inherit; }
.warning { background: var(--warn-bg); border-left-color: var(--warn); }
.danger { background: var(--danger-bg); border-left-color: var(--bear); }
.info { background: var(--info-bg); border-left-color: var(--ind1); }
.note > :first-child, .tip > :first-child, .warning > :first-child, .danger > :first-child, .info > :first-child { margin-top: 0; }
.note > :last-child, .tip > :last-child, .warning > :last-child, .danger > :last-child, .info > :last-child { margin-bottom: 0; }
:is(.note,.tip,.warning,.danger,.info) > p:first-child > strong:first-child { display: block; font: 700 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--bull-tx); margin-bottom: 2px; }
.warning > p:first-child > strong:first-child { color: var(--warn-tx); }
.danger > p:first-child > strong:first-child { color: var(--bear-tx); }
.info > p:first-child > strong:first-child { color: var(--ind1); }
.hero-panel { background: var(--panel); box-shadow: inset 0 0 0 1px var(--line); border-top: 3px solid var(--lv, var(--accent)); padding: 20px 24px; border-radius: 10px; margin: 18px 0; }
.hero-panel h2 { margin-top: 0; }

/* example + formula */
.example { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin: 22px 0; background: var(--raise); }
.example > h3:first-child, .example > .ex-title { margin: 0; padding: 8px 14px; background: var(--panel); border-bottom: 1px solid var(--line);
  font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.example .ex-body { padding: 12px 14px; overflow-x: auto; }
.example .ex-body > :first-child { margin-top: 0; } .example .ex-body > :last-child { margin-bottom: 0; }
.example > :not(h3):not(.ex-title):not(.ex-body) { margin: 12px 14px; }
.formula { font: 500 13.5px var(--mono); color: var(--ink-hi); background: var(--raise); border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; margin: 14px 0; overflow-x: auto; white-space: nowrap; }

/* tables */
.table-wrap { overflow-x: auto; margin: 16px 0; border: 1px solid var(--line); border-radius: 10px; background: var(--raise); }
table.ref { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 14.5px; }
.table-wrap table.ref { border: 0; }
table.ref:not(.table-wrap table) { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--raise); }
table.ref th { text-align: left; background: var(--panel); font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); padding: 9px 12px; border-bottom: 1px solid var(--line); }
table.ref td { padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--ink-2); }
table.ref tr:last-child td { border-bottom: 0; }
table.ref td.num, table.ref th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* lists */
.checklist { list-style: none; padding-left: 0; }
.checklist li { padding-left: 28px; position: relative; margin: 6px 0; }
.checklist li::before { content: ""; position: absolute; left: 2px; top: .35em; width: 16px; height: 16px; background: var(--bull-tx);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 8.5 6.5 12 13 4.5'/%3E%3C/svg%3E") center/contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 8.5 6.5 12 13 4.5'/%3E%3C/svg%3E") center/contain no-repeat; }
.steps { counter-reset: step; list-style: none; padding-left: 0; }
.steps > li { counter-increment: step; position: relative; padding-left: 38px; margin: 14px 0; }
.steps > li::before { content: counter(step, decimal-leading-zero); position: absolute; left: 0; top: 1px; width: 24px; height: 24px; border-radius: 6px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line-2); color: var(--ink-hi); display: grid; place-items: center; font: 600 11px var(--mono); }

/* grids + cards */
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 16px 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 16px 0; }
@media (max-width: 760px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }
.card { background: var(--raise); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; position: relative; overflow: hidden; }
.card h3, .card h4 { margin-top: 0; }
.card > :last-child { margin-bottom: 0; }
.card.bull { border-top: 3px solid var(--bull); } .card.bear { border-top: 3px solid var(--bear); }

/* quiz */
.quiz { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; margin: 30px 0; background: var(--panel); }
.quiz-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--line); }
.quiz-head h2, .quiz-head h3 { margin: 0 !important; font: 600 10.5px var(--mono) !important; letter-spacing: .1em; text-transform: uppercase; color: var(--muted) !important; }
.quiz-head .score { font: 600 12px var(--mono); color: var(--bull-tx); margin: 0; }
.quiz .q { padding: 14px 16px; margin: 0; border-left: 0; background: none; }
.quiz .q + .q { border-top: 1px solid var(--line); }
.quiz .q > p:first-child { margin-top: 0; font-weight: 700; color: var(--ink-hi); }
.quiz .q ol { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 8px; }
.quiz .q ol li { margin: 0; max-width: none; }
.quiz .opt { width: 100%; min-height: 44px; padding: 8px 12px; border: 0; box-shadow: inset 0 0 0 1px var(--line-2); background: var(--raise); color: var(--ink); border-radius: 10px; cursor: pointer;
  font: 15px var(--font); display: flex; gap: 10px; align-items: center; text-align: left; transition: transform var(--dur) var(--ease-spring), box-shadow var(--dur-fast), background-color var(--dur-fast); }
.quiz .opt:hover:not([disabled]) { box-shadow: inset 0 0 0 1px var(--accent-tx); }
.quiz .opt:active:not([disabled]) { transform: scale(.96); }
.quiz .opt .letter { flex: 0 0 24px; height: 24px; border-radius: 6px; display: grid; place-items: center; background: var(--panel); box-shadow: inset 0 0 0 1px var(--line); font: 600 11px var(--mono); color: var(--ink-2); }
.quiz .opt .end { margin-left: auto; font: 700 10.5px var(--mono); letter-spacing: .08em; }
.quiz .opt.correct { box-shadow: inset 0 0 0 2px var(--bull); color: var(--bull-tx); font-weight: 700; animation: pop 350ms var(--ease-spring); }
.quiz .opt.correct .letter { background: var(--bull); color: var(--tag-ink); box-shadow: none; }
.quiz .opt.correct .end { color: var(--bull-tx); }
.quiz .opt.wrong { box-shadow: inset 0 0 0 2px var(--bear); animation: nudge 300ms; }
.quiz .opt.wrong .letter { background: var(--bear); color: var(--tag-ink); box-shadow: none; }
.quiz .opt.wrong .end { color: var(--bear-tx); }
.quiz .opt[disabled] { cursor: default; }
.quiz .explain { display: none; margin-top: 10px; font-size: 14px; color: var(--ink-2); padding: 8px 12px; border-left: 3px solid var(--bull); border-radius: 0 8px 8px 0; background: var(--note-bg); }
.quiz .q.answered .explain { display: block; }
.quiz .quiz-foot { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-top: 1px solid var(--line); }
.quiz .quiz-foot .score { font: 700 14px var(--mono); color: var(--ink-hi); }
@keyframes pop { 50% { transform: scale(1.02); } }
@keyframes nudge { 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

/* try-it tools (calculators) */
.tryit { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; margin: 22px 0; background: var(--panel); }
.tryit > h3 { margin: 0 !important; padding: 10px 16px; border-bottom: 1px solid var(--line); font: 700 14px var(--font) !important; color: var(--ink-hi); display: flex; align-items: center; gap: 8px; }
.tryit > h3 .label { margin-left: auto; color: var(--accent-tx); }
.tryit .tool { padding: 14px 16px; border: 0; background: none; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px 14px; }
.tool label { display: block; font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.tool input, .tool select { width: 100%; height: 40px; border: 0; box-shadow: inset 0 0 0 1px var(--line-2); border-radius: 8px; padding: 0 12px; background: var(--raise); color: var(--ink-hi); font: 500 14px var(--mono); }
.tool input:focus, .tool select:focus { outline: 2px solid var(--accent-tx); outline-offset: 1px; }
.tool input[aria-invalid="true"] { box-shadow: inset 0 0 0 1px var(--bear); }
.tool .msg { font-size: 12.5px; color: var(--bear-tx); margin-top: 4px; }
.tool .result { margin-top: 14px; padding: 12px 14px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line); border-radius: 10px; font-size: 14px; color: var(--ink-2); }
.tool .result .big { display: block; font: 600 24px/1.2 var(--mono); letter-spacing: -.01em; color: var(--ink-hi); }
.tool .result .big.up { color: var(--bull-tx); } .tool .result .big.down { color: var(--bear-tx); }
.tool .result .err { color: var(--bear-tx); }
.tool .result dl { display: grid; grid-template-columns: auto 1fr; gap: 3px 14px; margin: 8px 0 0; font: 13px var(--mono); }
.tool .result dt { color: var(--muted); }
.tool .result dd { margin: 0; color: var(--ink-hi); font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.session-bars { margin-top: 6px; }
.session-row { display: grid; grid-template-columns: 90px 1fr; gap: 10px; align-items: center; margin: 6px 0; font-size: 13px; }
.session-track { position: relative; height: 22px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line); border-radius: 6px; overflow: hidden; }
.session-fill { position: absolute; top: 0; bottom: 0; background: var(--ind1); opacity: .45; border-radius: 4px; }
.session-fill.open { background: var(--bull); opacity: 1; }
.session-now { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--bear); }

/* progress + completion */
.progress { height: 6px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line); border-radius: 3px; overflow: hidden; }
.progress span { display: block; height: 100%; background: var(--accent); border-radius: 3px; transition: width var(--dur-slow) var(--ease-out); }
.complete-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; border: 1px solid var(--line); background: var(--panel); border-radius: 12px; padding: 12px 16px; margin: 32px 0 10px; }
.complete-bar .progress { flex: 1; max-width: 240px; min-width: 80px; }
.complete-bar p { margin: 0; color: var(--ink-2); font-size: 14px; flex: 1; }

/* notices */
.notice { display: flex; gap: 12px; align-items: flex-start; flex-wrap: wrap; }
.notice .actions { margin-left: auto; display: flex; gap: 6px; }

@keyframes settle { from { opacity: 0; transform: translateY(8px); } }
@keyframes fadeIn { from { opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important; transition-duration: .01ms !important; }
  .lh-eyebrow, .lesson-head h1, .cc-svg, .acct-dlg, .cc-tip, .pinned-strip { animation: fadeIn 150ms both !important; }
  .paid-skel i, .account[aria-busy="true"] { animation: none !important; }
}

/* == SHELL == */
/* top bar: the tinted top row of the lesson header on lessons; the app bar elsewhere */
.topbar { position: sticky; top: 0; z-index: 50; height: var(--topbar-h); display: flex; align-items: center; gap: 10px; padding: 0 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.col > .topbar { background: var(--lv-tint, var(--panel)); border-top: 3px solid var(--lv, var(--accent)); border-bottom: 0; box-shadow: 0 1px 0 color-mix(in srgb, var(--line) 70%, transparent); padding: 0 24px; height: calc(var(--topbar-h) + 3px); }
.brand { display: inline-flex; align-items: center; gap: 8px; flex: none; color: var(--ink-hi) !important; font: 900 16px var(--display); font-stretch: 112%; letter-spacing: 0; text-decoration: none; white-space: nowrap; }
.brand .mark { display: block; flex: none; }
.crumbs { display: flex; align-items: center; gap: 6px; font-size: 13.5px; color: var(--muted); white-space: nowrap; min-width: 0; overflow: hidden; }
.crumbs span { min-width: 0; overflow: hidden; }
.crumbs a { color: var(--muted) !important; text-decoration: none; }
.crumbs a:hover { color: var(--ink-hi) !important; }
.crumbs b { display: block; color: var(--ink-hi); font-weight: 700; overflow: hidden; text-overflow: ellipsis; }
.topbar .spacer { flex: 1; }
.search { position: relative; width: 260px; display: flex; align-items: center; gap: 8px; height: 36px; border-radius: 8px; padding: 0 10px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line-2); color: var(--muted); }
.search input { flex: 1; min-width: 0; height: 100%; border: 0; background: transparent; color: var(--ink-hi); font: 14px var(--font); outline: none; }
.search:focus-within { outline: 2px solid var(--accent-tx); outline-offset: 1px; }
.search kbd { font-size: 10.5px; color: var(--muted); }
.search-results { position: absolute; top: 42px; left: 0; right: 0; z-index: 70; list-style: none; margin: 0; padding: 6px; background: var(--raise); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow-pop); max-height: 60vh; overflow: auto; display: none; }
.search-results.open { display: block; }
.search-results a { display: flex; align-items: center; gap: 10px; padding: 7px 8px; border-radius: 6px; color: var(--ink) !important; text-decoration: none; font-size: 14px; }
.search-results a .t { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-results a small { margin-left: auto; font: 500 10.5px var(--mono); color: var(--muted); white-space: nowrap; }
.search-results a:hover, .search-results a.active { background: var(--panel); }
.search-results .empty { padding: 10px; color: var(--muted); font-size: 14px; }
.search-results .empty a { display: inline; padding: 0; color: var(--accent-tx) !important; text-decoration: underline; }
.search-results .dym { padding: 4px 4px 2px; border-top: 1px solid var(--line); }
.search-results .dym .label { display: block; padding: 6px 6px 2px; }
.search-btn, .menu-btn { display: none; }
.account-slot { display: contents; }

/* layout: watchlist | column (top bar, lesson header, reading) | chart panel */
.layout { display: grid; grid-template-columns: var(--rail-w) minmax(0, 1fr); align-items: start; }
body.rail-collapsed .layout { grid-template-columns: 64px minmax(0, 1fr); }
.col { min-width: 0; }
.main { min-width: 0; padding: 32px 32px 80px; max-width: 840px; margin: 0; }
.toc { display: none; }

/* course watchlist */
.rail { position: sticky; top: 0; height: 100vh; overflow-y: auto; background: var(--panel); border-right: 1px solid var(--line); padding: 0 0 24px; font-size: 14px; scrollbar-width: thin; }
.wl-head { position: sticky; top: 0; z-index: 2; background: var(--panel); padding: 12px 14px 8px; display: grid; gap: 10px; }
.wl-brand { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 36px; }
.rail .search { width: 100%; }
.wl-title { display: flex; justify-content: space-between; font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); padding: 6px 2px 0; }
.wl-title b { color: var(--ink-hi); font-weight: 600; }
.wl-list { padding: 0 8px; display: grid; gap: 2px; }
.wl-row { width: 100%; display: grid; grid-template-columns: 38px minmax(0, 1fr) 46px 34px; align-items: center; gap: 10px; padding: 8px 6px; border: 0; border-radius: 10px; background: transparent; color: var(--ink); font: inherit; text-align: left; cursor: pointer;
  transition: background-color var(--dur-fast); }
.wl-row:hover { background: var(--raise); }
.wl-lvl.open > .wl-row { background: var(--raise); box-shadow: inset 0 0 0 1px var(--line); }
.wl-name { min-width: 0; display: grid; line-height: 1.25; }
.wl-name b { font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wl-name b .chip { margin-left: 6px; }
html.fx-advanced .wl-name .chip { display: none; }
.wl-name small { font: 500 11px var(--mono); color: var(--muted); }
.wl-spark { width: 46px; height: 16px; overflow: visible; }
.wl-spark polyline { fill: none; stroke: var(--lv); stroke-width: 1.5; stroke-linejoin: round; stroke-linecap: round; }
.wl-pct { font: 600 11.5px var(--mono); color: var(--muted); text-align: right; }
.wl-pct.up { color: var(--bull-tx); }
.wl-lessons { margin: 2px 0 8px 24px; padding-left: 6px; border-left: 1px solid var(--line-2); display: grid; gap: 1px; }
.wl-lessons a { display: flex; align-items: center; gap: 10px; min-height: 32px; padding: 4px 8px; border-radius: 6px; color: var(--ink-2) !important; text-decoration: none; font-size: 13.5px; }
.wl-lessons a:hover { background: var(--raise); color: var(--ink-hi) !important; }
.wl-lessons a .n { font: 500 11px var(--mono); color: var(--muted); width: 18px; flex: none; display: inline-grid; }
.wl-lessons a.dn .n { color: var(--bull-tx); }
.wl-lessons a .t { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wl-lessons a.on { color: var(--ink-hi) !important; font-weight: 700; box-shadow: inset 2px 0 0 var(--accent); border-radius: 0 6px 6px 0;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 18%, transparent), transparent 85%); }
.wl-lessons a .now { margin-left: auto; display: inline-flex; align-items: center; gap: 5px; font: 600 10px var(--mono); letter-spacing: .06em; color: var(--accent-tx); white-space: nowrap; }
.wl-lessons a .now::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.wl-lessons a .lk { margin-left: auto; color: var(--muted); display: inline-grid; }
html.fx-advanced .wl-lessons a .lk { display: none; }
.wl-next { display: grid; grid-template-columns: 38px 1fr; gap: 2px 10px; align-items: center; margin: 14px 14px 0; padding: 12px; border-radius: 10px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line); text-decoration: none; color: var(--ink-2) !important; }
.wl-next .label { grid-column: 1 / -1; margin-bottom: 4px; color: var(--accent-tx); }
.wl-next .tk { grid-row: span 2; }
.wl-next b { font-size: 14px; } .wl-next small { font: 500 11px var(--mono); color: var(--muted); }
.wl-next:hover { box-shadow: inset 0 0 0 1px var(--accent-tx); }
@media (min-width: 1100px) {
  body.rail-collapsed .rail .search, body.rail-collapsed .wl-title, body.rail-collapsed .wl-name, body.rail-collapsed .wl-spark, body.rail-collapsed .wl-pct,
  body.rail-collapsed .wl-row > span:empty, body.rail-collapsed .wl-lessons, body.rail-collapsed .wl-next, body.rail-collapsed .brand span { display: none !important; }
  body.rail-collapsed .wl-head { padding: 12px 6px 8px; }
  body.rail-collapsed .wl-brand { flex-direction: column; }
  body.rail-collapsed .wl-list { padding: 0 6px; }
  body.rail-collapsed .wl-row { grid-template-columns: 38px; justify-content: center; padding: 6px 0; }
  body.rail-collapsed .rail-toggle svg { transform: rotate(180deg); }
}

/* lesson nav: previous (quiet) + next (primary) */
.lesson-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 18px 0 24px; }
.lesson-nav-top { display: none; }
.nav-card { display: block; border-radius: 10px; padding: 10px 14px; text-decoration: none; color: var(--ink-hi) !important; font-weight: 700; font-size: 14.5px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line-2);
  transition: transform var(--dur) var(--ease-spring); }
.nav-card:active { transform: scale(.96); }
.nav-card .label { display: flex; align-items: center; gap: 4px; margin-bottom: 2px; }
.nav-card.next { text-align: right; background: var(--accent); box-shadow: none; color: var(--on-accent) !important; }
.nav-card.next .label { justify-content: flex-end; color: var(--on-accent); opacity: .8; }
.lesson-strip { display: none; }

/* footer */
.footer { background: var(--panel); border-top: 1px solid var(--line); padding: 28px 24px; font-size: 13px; color: var(--muted); }
.footer-in { max-width: 840px; margin: 0 auto; display: grid; gap: 10px; }
.footer p { margin: 0; }
.footer .links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer .links a { color: var(--ink-2) !important; }

/* tab bar (phone) */
.tabbar { display: none; }
.overlay { display: none; }

@media (max-width: 1099px) {
  .menu-btn, .col .search-btn { display: inline-grid; }
  .layout, body.rail-collapsed .layout { grid-template-columns: minmax(0, 1fr); }
  .rail { position: fixed; left: 0; top: 0; bottom: 0; height: auto; width: 300px; max-width: 88vw; z-index: 60; transform: translateX(-100%); visibility: hidden;
    transition: transform var(--dur-slow) var(--ease-out), visibility 0s linear var(--dur-slow); box-shadow: var(--shadow-pop); }
  .rail-toggle { display: none !important; }
  body.side-open .rail { transform: none; visibility: visible; transition-delay: 0s; }
  body.side-open .overlay { display: block; position: fixed; inset: 0; background: var(--overlay); z-index: 55; }
  .main { padding: 24px 24px 80px; }
  .col > .topbar { padding: 0 12px; }
}
@media (max-width: 759px) {
  .topbar { gap: 6px; padding: 0 8px; }
  .col > .topbar { padding: 0 6px; }
  .brand span { display: none; }
  .rail .brand span { display: inline; }
  body:not(.has-rail) .search { display: none; position: absolute; left: 8px; right: 8px; top: 8px; width: auto; z-index: 75; }
  body.search-open:not(.has-rail) .search { display: flex; }
  .search-btn { display: inline-grid; }
  .icon-btn { min-width: 44px; height: 44px; border: 0; }
  .main { padding: 20px 16px 40px; }
  .main h1, .unlock-page h1, .solo h1 { font-size: 34px; }
  .main h2 { font-size: 21px; }
  .lesson-strip { display: flex; position: sticky; bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom)); z-index: 40; height: 60px; align-items: center; padding: 8px 14px; gap: 8px; background: var(--panel); border-top: 1px solid var(--line); }
  .lesson-strip .prev { flex: 1; display: flex; align-items: center; justify-content: center; gap: 4px; height: 44px; border-radius: 8px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line-2); color: var(--ink-hi) !important; text-decoration: none; font: 700 14px var(--font); }
  .lesson-strip .prev span { display: none; }
  .lesson-strip .prev::after { content: "Prev"; }
  .lesson-strip .next { flex: 1.6; min-height: 44px; }
  .lesson-strip .nx-t { display: none; }
  .tabbar { display: flex; position: sticky; bottom: 0; z-index: 45; height: calc(var(--tabbar-h) + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); background: var(--panel); border-top: 1px solid var(--line); }
  .tabbar a { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; font: 600 10.5px var(--font); color: var(--muted) !important; text-decoration: none; }
  .tabbar a.on { color: var(--accent-tx) !important; }
  .tabbar svg.i { width: 22px; height: 22px; vertical-align: 0; }
  .lesson-nav { grid-template-columns: 1fr; }
}

/* == HEADER == (lesson header, built by course.js around the page's h1) */
.lesson-head { position: relative; padding: 18px 32px 16px; background-color: var(--lv-tint, var(--panel)); border-bottom: 1px solid var(--line);
  background-image: linear-gradient(color-mix(in srgb, var(--lv) 8%, transparent) 1px, transparent 1px), linear-gradient(90deg, color-mix(in srgb, var(--lv) 8%, transparent) 1px, transparent 1px);
  background-size: 26px 26px; background-position: -1px -1px; }
.lh-row { display: flex; align-items: flex-end; gap: 20px; }
.lh-tile { width: 76px; height: 76px; flex: none; border-radius: 14px; display: grid; place-content: center; text-align: center; gap: 2px;
  background: color-mix(in srgb, var(--lv) 14%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--lv) 35%, transparent); }
.lh-tile span { font: 700 11px var(--mono); letter-spacing: .1em; color: var(--lv-tx); }
.lh-tile b { font: 900 30px/1 var(--display); font-stretch: 125%; color: var(--ink-hi); }
.lh-title { flex: 1; min-width: 0; }
.lh-eyebrow { margin: 0 0 8px; font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--lv-tx); animation: settle 420ms var(--ease-out) both; }
.lesson-head h1 { margin: 0; font: 900 clamp(32px, 3.2vw, 44px)/.95 var(--display); font-stretch: 125%; letter-spacing: -.01em; color: var(--ink-hi); hyphens: auto; overflow-wrap: break-word;
  animation: settle 420ms var(--ease-out) 50ms both; }
.lh-quote { flex: none; display: grid; grid-template-columns: repeat(3, auto); margin: 0; border-radius: 10px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line); }
.lh-quote div { padding: 8px 14px; }
.lh-quote div + div { border-left: 1px solid var(--line); }
.lh-quote dt { font: 600 9.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.lh-quote dd { margin: 0; font: 600 15px var(--mono); color: var(--ink-hi); white-space: nowrap; }

/* == COURSE CHART == one candle per lesson */
.cc { margin-top: 18px; }
.cc-labels { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.cc-here { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-hi); }
.cc-here i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 1.5px var(--ink-hi); }
.cc-here a { color: var(--accent-tx); }
.cc-plot { position: relative; display: block; height: 150px; }
.cc-svg { display: block; overflow: visible; }
.cc-svg a:focus { outline: none; }
.cc-hit { fill: transparent; }
.cc-svg a:hover .cc-hit { fill: color-mix(in srgb, var(--ink) 6%, transparent); }
.cc-svg a:focus-visible .cc-hit { fill: color-mix(in srgb, var(--accent) 16%, transparent); stroke: var(--accent-tx); stroke-width: 2; }
.cc-c { transform-box: fill-box; transform-origin: center bottom; }
.cc-c line { stroke-width: 1.2; }
.cc-up { fill: var(--bull); stroke: var(--bull); } .cc-dn { fill: var(--bear); stroke: var(--bear); }
.cc-h { fill: none; stroke: var(--hollow); stroke-dasharray: 2 2; }
.cc-now { fill: var(--accent); stroke: var(--ink-hi); stroke-width: 1.5; }
.cc-now line { stroke: var(--ink-hi); }
.cc-sep { stroke: var(--line-2); stroke-dasharray: 1 3; }
.cc-code { font: 700 9.5px var(--mono); letter-spacing: .08em; fill: var(--lv-tx); }
.cc-tag line { stroke: var(--accent-tx); stroke-dasharray: 3 3; }
.cc-tag rect { fill: var(--accent); }
.cc-tag text { font: 700 10.5px var(--mono); fill: var(--on-accent); }
.cc-ax { font: 500 9.5px var(--mono); fill: var(--muted); }
.cc-svg.play .cc-c { animation: ccGrow 380ms var(--ease-out) both; animation-delay: calc(var(--i) * 12ms); }
.cc-svg.play .cc-tag { animation: fadeIn 300ms var(--ease-out) 700ms both; }
.cc-c.jump { animation: ccJump 450ms var(--ease-spring) both; }
@keyframes ccGrow { from { transform: scaleY(0); } }
@keyframes ccJump { from { transform: scaleY(.2); } }
.cc-tip { position: absolute; top: calc(100% + 6px); z-index: 30; transform: translateX(-50%); display: grid; gap: 1px; min-width: 170px; padding: 8px 10px; border-radius: 8px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line), var(--shadow-pop);
  font-size: 13px; color: var(--ink-2); pointer-events: none; white-space: nowrap; animation: fadeIn var(--dur-fast) both; }
.cc-tip .cc-tk { font: 700 10px var(--mono); letter-spacing: .08em; color: var(--lv-tx); }
.cc-tip b { font-size: 14px; }
.cc-tip .go { font: 600 11px var(--mono); color: var(--accent-tx); margin-top: 2px; }

@media (max-width: 759px) {
  .lesson-head { padding: 14px 16px 12px; }
  .lh-row { flex-wrap: wrap; align-items: center; gap: 12px; }
  .lh-tile { width: 50px; height: 50px; border-radius: 10px; }
  .lh-tile span { font-size: 9.5px; } .lh-tile b { font-size: 20px; }
  .lh-title { flex-basis: calc(100% - 62px); }
  .lesson-head h1 { font-size: clamp(26px, 8vw, 32px); }
  .lh-quote { width: 100%; grid-template-columns: repeat(3, 1fr); }
  .lh-quote div { padding: 6px 10px; }
  .cc-plot { height: 120px; }
}

/* == CHARTS == */
.chart-box { margin: 20px 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--bg); padding: 0; }
.chart-head { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-bottom: 1px solid var(--line); font: 500 11px var(--mono); color: var(--muted); background: var(--panel); }
.chart-head b { font: 600 12.5px var(--mono); color: var(--ink-hi); }
.chart-head .lgs { margin-left: auto; display: flex; gap: 12px; flex-wrap: wrap; }
.chart-head .lg i { display: inline-block; width: 12px; height: 2px; margin-right: 5px; vertical-align: middle; background: currentColor; }
.chart-head .lg i.c-ind1 { color: var(--ind1); } .chart-head .lg i.c-ind2 { color: var(--ind2); } .chart-head .lg i.c-ind3 { color: var(--ind3); } .chart-head .lg i.c-ind4 { color: var(--ind4); }
.chart-box > div.fx-chart { padding: 8px 8px 0; }
.chart-box figcaption, .chart-caption { padding: 8px 12px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--ink-2); text-align: left; margin: 0; }
svg.fx-chart { display: block; width: 100%; height: auto; }
svg.fx-chart text { font-family: var(--mono); fill: var(--muted); }
svg.fx-chart .gl { stroke: var(--grid); } svg.fx-chart .rl { stroke: var(--muted); stroke-dasharray: 4 3; } svg.fx-chart .pf { fill: none; stroke: var(--grid); }
svg.fx-chart .rb { fill: var(--ind3); fill-opacity: .09; stroke: none; }
svg.fx-chart .cu { fill: var(--bull); stroke: var(--bull); } svg.fx-chart .cd { fill: var(--bear); stroke: var(--bear); }
svg.fx-chart .cndl line { stroke-width: 1.3; }
svg.fx-chart .ln { fill: none; stroke-width: 1.8; }
svg.fx-chart .c-ind1 { stroke: var(--ind1); } svg.fx-chart .c-ind2 { stroke: var(--ind2); } svg.fx-chart .c-ind3 { stroke: var(--ind3); } svg.fx-chart .c-ind4 { stroke: var(--ind4); }
svg.fx-chart .c-blue { stroke: var(--accent-tx); --tagc: var(--accent); --tagt: var(--on-accent); }
svg.fx-chart .c-bull { stroke: var(--bull); --tagc: var(--bull-tx); --tagt: var(--tag-ink); }
svg.fx-chart .c-bear { stroke: var(--bear); --tagc: var(--bear-tx); --tagt: var(--tag-ink); }
svg.fx-chart .lvl line { stroke-width: 1.6; }
svg.fx-chart .lvl text { stroke: none; }
svg.fx-chart .lvl .tag { fill: var(--tagc); stroke: none; }
svg.fx-chart .lvl .tagt { fill: var(--tagt); font-size: 11px; font-weight: 600; }
svg.fx-chart .zn { stroke: none; fill-opacity: .12; }
svg.fx-chart .zn.c-bull { fill: var(--bull); } svg.fx-chart .zn.c-bear { fill: var(--bear); } svg.fx-chart .zn.c-blue { fill: var(--accent); fill-opacity: .16; }
svg.fx-chart .zl { stroke: none; font-size: 12px; font-weight: 600; }
svg.fx-chart .zl.c-bull { fill: var(--bull-tx); } svg.fx-chart .zl.c-bear { fill: var(--bear-tx); } svg.fx-chart .zl.c-blue { fill: var(--accent-tx); }
svg.fx-chart .tl { stroke-width: 2; }
svg.fx-chart .bbf { fill: var(--ind1); fill-opacity: .07; }
svg.fx-chart .mk-up { fill: var(--bull); } svg.fx-chart .mk-dn { fill: var(--bear); }
svg.fx-chart .mkt { fill: var(--ink-hi); font-size: 12px; font-weight: 600; }
svg.fx-chart .hb-up { fill: var(--bull); fill-opacity: .55; } svg.fx-chart .hb-dn { fill: var(--bear); fill-opacity: .55; }
svg.fx-chart .pt { fill: var(--ink-hi); font-weight: 600; }
/* build animation (Tactile) */
svg.fx-chart .cndl, svg.fx-chart .lvl, svg.fx-chart .zn { transform-box: fill-box; }
svg.fx-chart .cndl { --i: 0; transform-origin: center bottom; opacity: 0; }
svg.fx-chart .lvl { transform-origin: left center; }
svg.fx-chart .zn { transform-origin: center bottom; }
svg.fx-chart.play .cndl { animation: cBuild 380ms var(--ease-out) both; animation-delay: calc(var(--i) * 12ms); }
svg.fx-chart.play .lvl { animation: lDraw var(--dur-slow) var(--ease-out) both 450ms; }
svg.fx-chart.play .zn { animation: zRise var(--dur-slow) var(--ease-out) both 700ms; }
@keyframes cBuild { from { opacity: 0; transform: scaleY(.2); } to { opacity: 1; transform: none; } }
@keyframes lDraw { from { transform: scaleX(0); } to { transform: none; } }
@keyframes zRise { from { transform: scaleY(0); } to { transform: none; } }
@media (prefers-reduced-motion: reduce) { svg.fx-chart .cndl { opacity: 1; } }
.chart-error { aspect-ratio: 46 / 26; display: grid; place-content: center; justify-items: center; gap: 4px; text-align: center; padding: 16px; color: var(--muted); }
.chart-error b { color: var(--ink-hi); }
.chart-error span { font-size: 13px; color: var(--ink-2); max-width: 44ch; }
.chart-error .row { display: flex; gap: 6px; margin-top: 6px; }

/* == DOCK == chart panel */
body.has-rail .layout:has(.dock) { grid-template-columns: var(--rail-w) minmax(0, 1fr) var(--dock-w); }
body.has-rail.rail-collapsed .layout:has(.dock) { grid-template-columns: 64px minmax(0, 1fr) var(--dock-w); }
.dock { position: sticky; top: 0; height: 100vh; overflow-y: auto; background: var(--panel); border-left: 1px solid var(--line); padding: 0 0 16px; display: flex; flex-direction: column; gap: 12px; z-index: 30; scrollbar-width: thin; }
.dock-tabs { display: flex; overflow-x: auto; scrollbar-width: none; border-bottom: 1px solid var(--line); min-height: calc(var(--topbar-h) + 3px); flex: none; }
.dock-tabs button { flex: none; max-width: 210px; padding: 0 14px; border: 0; background: none; color: var(--muted); font: 600 10.5px var(--mono); letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: pointer; }
.dock-tabs button:hover { color: var(--ink-hi); }
.dock-tabs button.on { color: var(--ink-hi); box-shadow: inset 0 -2px 0 var(--accent); }
.ohlc { display: flex; flex-wrap: wrap; gap: 4px 12px; padding: 0 14px; font: 500 11.5px var(--mono); color: var(--muted); }
.ohlc b { color: var(--ink-hi); font-weight: 600; }
.ohlc .pair { color: var(--ink-hi); }
.ohlc .up { color: var(--bull-tx); } .ohlc .down { color: var(--bear-tx); }
.dock-h { display: flex; align-items: center; gap: 8px; padding: 14px 14px 0; font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.dock-chart { padding: 0 14px; }
.dock-chart .chart-box { margin: 0; }
.dock-chart:focus { outline: none; }
.dock-chart:focus-visible .chart-box { outline: 2px solid var(--accent-tx); outline-offset: 2px; }
.dock-more { padding: 0 14px; display: grid; gap: 12px; }
.dock[data-mode="outline"] > .outline, .dock[data-mode="outline"] > .dock-card { margin: 0 14px; }
.dock-card { display: grid; gap: 2px; text-align: left; width: 100%; padding: 12px 14px; border: 0; box-shadow: inset 0 0 0 1px var(--line); border-radius: 10px; background: var(--raise); color: var(--ink-2) !important; text-decoration: none; font: 13.5px var(--font); cursor: pointer; }
.dock-card b { font-size: 15px; color: var(--ink-hi); }
.dock-card:hover { box-shadow: inset 0 0 0 1px var(--accent-tx); }
.outline { display: flex; flex-direction: column; font-size: 13.5px; }
.outline a { padding: 5px 10px; border-left: 2px solid var(--line); color: var(--ink-2) !important; text-decoration: none; }
.outline a.on, .outline a:hover { border-left-color: var(--accent); color: var(--ink-hi) !important; }
.dock-outline summary { cursor: pointer; font: 600 10.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.anchor-row { display: none; }
body.docked .main figure.chart-box.in-dock { display: none; }
body.docked .anchor-row { display: flex; align-items: center; gap: 10px; width: 100%; margin: 14px 0; padding: 9px 12px; border: 1px dashed var(--line-2); border-radius: 8px; background: var(--panel); color: var(--ink-2); font: 13.5px var(--font); text-align: left; cursor: pointer; }
.anchor-row b { color: var(--ink-hi); }
.anchor-row .go { margin-left: auto; font: 600 10.5px var(--mono); letter-spacing: .1em; color: var(--accent-tx); white-space: nowrap; }
.anchor-row.on { border-style: solid; border-color: var(--accent-tx); }
@media (max-width: 1099px) {
  .dock { display: none; }
  body.has-rail .layout:has(.dock), body.has-rail.rail-collapsed .layout:has(.dock) { grid-template-columns: minmax(0, 1fr); }
}

/* pinned chart strip (tablet + phone) and its sheet */
.pinned-strip { position: sticky; top: calc(var(--topbar-h) + 3px); z-index: 45; height: 56px; margin-bottom: -56px; display: flex; align-items: center; gap: 10px; padding: 8px 12px; background: var(--panel); border-bottom: 1px solid var(--line); cursor: pointer; animation: stripIn var(--dur) var(--ease-out); }
.pinned-strip[hidden] { display: none; }
.pinned-strip .spark { width: 64px; height: 38px; flex: none; border-radius: 6px; background: var(--bg); box-shadow: inset 0 0 0 1px var(--line); padding: 3px; }
.pinned-strip .spark polyline { fill: none; stroke: var(--bull); stroke-width: 1.6; stroke-linejoin: round; }
.pinned-strip .txt { font: 500 11px var(--mono); line-height: 1.35; color: var(--muted); min-width: 0; }
.pinned-strip .txt b { display: block; font: 700 13.5px var(--font); color: var(--ink-hi); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pinned-strip .icon-btn { margin-left: auto; }
@keyframes stripIn { from { transform: translateY(-8px); opacity: 0; } }
.chart-sheet { width: min(720px, 100vw); max-width: 100vw; margin: auto auto 0; border: 0; border-radius: 14px 14px 0 0; padding: 10px 14px 24px; background: var(--raise); color: var(--ink); animation: sheetUp var(--dur-slow) var(--ease-out); }
.chart-sheet:not([open]) { display: none; }
.chart-sheet::backdrop { background: var(--overlay); }
.chart-sheet .sheet-h { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.chart-sheet .chart-box { margin: 0; }
@keyframes sheetUp { from { transform: translateY(40px); opacity: .4; } }
@media (min-width: 1100px) { .pinned-strip, .chart-sheet { display: none !important; } }

/* == ACCOUNT == */
.account { height: 34px; padding: 0 14px; border-radius: 8px; border: 0; background: var(--ink-hi); color: var(--bg); font: 700 13px var(--font); cursor: pointer; white-space: nowrap; flex: none;
  transition: transform var(--dur) var(--ease-spring); }
.account:active { transform: scale(.96); }
.account[aria-busy="true"] { color: transparent; width: 96px; height: 30px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line); border-radius: 99px; animation: skel 1.4s ease-in-out infinite; }
.account.signed-in { display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 12px 0 4px; border-radius: 99px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line-2); color: var(--ink-hi); }
.acct-av { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--lv, var(--accent)); color: var(--on-accent); font: 700 12px var(--font); flex: none; }
.acct-nm { max-width: 110px; overflow: hidden; text-overflow: ellipsis; }
.acct-wrap { position: relative; flex: none; }
.acct-menu { position: absolute; right: 0; top: 42px; z-index: 80; width: 260px; padding: 8px; background: var(--raise); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-pop); }
.acct-menu .acct-who { margin: 4px 8px 6px; }
.acct-menu .acct-who b { display: block; color: var(--ink-hi); font-size: 14px; }
.acct-menu .acct-who small { display: block; color: var(--muted); font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; }
.acct-menu .acct-plan { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 0 0 8px; padding: 8px; border-radius: 8px; background: var(--panel); font-size: 13px; color: var(--ink-2); }
.acct-menu .acct-out { width: 100%; min-height: 40px; text-align: left; padding: 0 10px; border: 0; border-radius: 8px; background: transparent; color: var(--ink-hi); font: 600 14px var(--font); cursor: pointer; }
.acct-menu .acct-out:hover, .acct-menu .acct-out:focus-visible { background: var(--panel); }
.acct-dlg { width: min(380px, calc(100vw - 32px)); border: 0; box-shadow: inset 0 0 0 1px var(--line), var(--shadow-pop); border-radius: 14px; padding: 22px 22px 18px; background: var(--raise); color: var(--ink); animation: settle var(--dur) var(--ease-out); }
.acct-dlg:not([open]) { display: none; }
.acct-dlg::backdrop { background: var(--overlay); }
.acct-dlg h2 { font: 900 22px/1.05 var(--display); font-stretch: 112%; color: var(--ink-hi); margin: 0 40px 14px 0; }
.acct-x-form { position: absolute; top: 14px; right: 14px; margin: 0; }
.acct-x { min-width: 30px !important; width: 30px; height: 30px !important; border: 1px solid var(--line-2) !important; border-radius: 8px; }
.acct-form { display: grid; gap: 12px; }
.acct-form label { display: grid; gap: 5px; font-size: 13px; font-weight: 700; color: var(--ink-2); }
.acct-form input { height: 42px; padding: 0 12px; border: 0; box-shadow: inset 0 0 0 1px var(--line-2); border-radius: 8px; background: var(--bg); color: var(--ink-hi); font: 15px var(--font); }
.acct-form input:focus { outline: 2px solid var(--accent-tx); outline-offset: 1px; }
.acct-form input[aria-invalid="true"] { box-shadow: inset 0 0 0 2px var(--bear); }
.acct-form .btn { width: 100%; margin-top: 4px; }
.acct-form .btn[aria-busy="true"] { opacity: .6; }
.acct-hint { margin: -6px 0 0; font-size: 12.5px; color: var(--muted); }
.acct-lead { margin: 0; font-size: 14px; color: var(--ink-2); }
.acct-alt { margin: 0; font-size: 13.5px; color: var(--ink-2); text-align: center; }
.linkish { border: 0; background: none; padding: 4px 2px; color: var(--accent-tx); font: inherit; font-weight: 700; cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }
.acct-err { margin: 10px 0 0; color: var(--bear-tx); font-size: 13.5px; }
.acct-ok { margin: 10px 0 0; color: var(--bull-tx); font-size: 13.5px; }
.acct-err:empty, .acct-ok:empty { display: none; }
/* iOS zooms into any field under 16px when it gets focus: keep every field at 16px on touch screens. */
@media (pointer: coarse) { input, select, textarea, .search input, .tool input, .tool select, .acct-form input { font-size: 16px; } }
@media (max-width: 759px) {
  .account { height: 36px; }
  .account.signed-in { padding: 0 6px; }
  .acct-nm { display: none; }
}

/* == PAYWALL == */
.paid { margin: 24px 0; }
.paywall { border: 1px solid var(--line); border-top: 3px solid var(--accent); border-radius: 12px; background: var(--raise); padding: 22px; }
.paywall .pw-ic { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: var(--accent); color: var(--on-accent); margin-bottom: 12px; }
.paywall h2 { margin: 0 0 6px !important; border: 0; padding: 0; font: 900 26px/1.05 var(--display) !important; font-stretch: 125% !important; }
.paywall p { color: var(--ink-2); }
.paywall ul { list-style: none; columns: 2 200px; gap: 24px; padding: 0; margin: 14px 0 18px; font-size: 14px; color: var(--ink-2); }
.paywall li { break-inside: avoid; margin-bottom: 6px; padding-left: 18px; position: relative; }
.paywall li::before { content: ""; position: absolute; left: 3px; top: .25em; width: 6px; height: 12px; border-radius: 1.5px; box-shadow: inset 0 0 0 1.5px var(--accent-tx); }
.paywall li.here { font-weight: 700; color: var(--ink-hi); }
.paywall li.here::before { background: var(--accent); box-shadow: inset 0 0 0 1.5px var(--ink-hi); }
.paywall .pw-note { font-size: 12.5px; color: var(--muted); margin: 10px 0 0; }
.paid-skel { display: grid; gap: 12px; }
.paid-skel i { display: block; border-radius: 8px; background: var(--raise); box-shadow: inset 0 0 0 1px var(--line); animation: skel 1.4s ease-in-out infinite; }
.paid-skel .sk-h { height: 28px; width: 45%; } .paid-skel .sk-chart { height: 300px; } .paid-skel .sk-p { height: 14px; } .paid-skel .sk-p.short { width: 60%; }
@keyframes skel { 50% { opacity: .55; } }
.paid:not(.unlocked) ~ .complete-bar { display: none; }
.pay-opts { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.pay-opt { width: 100%; display: flex; align-items: center; gap: 12px; min-height: 60px; padding: 10px 12px; border: 0; box-shadow: inset 0 0 0 1px var(--line-2); border-radius: 10px; background: var(--raise); color: var(--ink-hi); font: inherit; text-align: left; cursor: pointer;
  transition: transform var(--dur) var(--ease-spring), box-shadow var(--dur-fast); }
.pay-opt:hover:not([disabled]) { box-shadow: inset 0 0 0 1px var(--accent-tx); }
.pay-opt:active:not([disabled]) { transform: scale(.96); }
.pay-opt[disabled] { cursor: default; opacity: .55; } .pay-opt[aria-busy] { opacity: 1; box-shadow: inset 0 0 0 2px var(--accent); }
.pay-marks { display: flex; gap: 4px; flex: none; width: 78px; }
.pay-badge { display: inline-grid; place-items: center; height: 26px; min-width: 36px; padding: 0 4px; border-radius: 6px; background: #FFFFFF; border: 1px solid #E3E5EA; color: #12141A; }
.pay-badge.wide { min-width: 54px; }
.pay-txt { flex: 1; display: grid; } .pay-txt b { font-size: 14.5px; } .pay-txt small { color: var(--muted); font-size: 12.5px; }
.pay-sub { display: block; margin: -8px 0 14px; font: 600 12px var(--mono); color: var(--accent-tx); }
.pay-go { color: var(--muted); display: inline-grid; }
.pay-go .spin { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.pay-err { color: var(--bear-tx); font-size: 13.5px; margin: 10px 0 0; } .pay-err:empty { display: none; }
.pay-wait p { color: var(--ink-2); font-size: 14px; }
.unlock-page { max-width: 560px; margin: 60px auto; padding: 0 16px; }
.unlock-page h1:focus { outline: none; }
.unlock-page p { color: var(--ink-2); }
.state-badge { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; margin-bottom: 16px; font: 700 20px var(--mono); background: var(--accent); color: var(--on-accent); }
.state-badge.ok { background: var(--bull); color: var(--tag-ink); }
.state-badge.bad { background: var(--bear); color: var(--tag-ink); }
.solo { max-width: 420px; margin: 60px auto; padding: 0 16px; }

/* == PRINT == */
@media print {
  .topbar, .rail, .lesson-strip, .tabbar, .overlay, .toc, .lesson-nav, .footer, .complete-bar, .dock, .anchor-row, .pinned-strip, .chart-sheet, .cc { display: none !important; }
  body.docked .main figure.chart-box.in-dock { display: block !important; }
  .main { max-width: none; padding: 0; }
  svg.fx-chart .cndl { opacity: 1 !important; }
}