/* ==========================================================================
   Course / lesson pages. Tokens come from theme.css (shared with the home
   page and the challenge screen); nothing colour-related is redefined here
   except a few lesson-only aliases below.
========================================================================== */

:root {
  --reading-bg: #0b141c;          /* softer than the terminal surface for long reading */
  --reading-text: #d9d5c9;
  --annot-blue: var(--pattern-accent);
  --header-h: 60px;
  --progress-h: 30px;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }

.course-body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 56px 56px;
  background-attachment: fixed;
}
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent-gold); outline-offset: 2px; border-radius: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ------------------------------ header ------------------------------ */

.course-header { position: sticky; top: 0; z-index: 60; background: rgba(7, 15, 22, 0.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.course-header-inner { max-width: 1760px; margin: 0 auto; padding: 0 24px; height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.course-header-left { display: flex; align-items: center; gap: 22px; min-width: 0; }
.course-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; white-space: nowrap; }
.brand-mark { width: 9px; height: 9px; border-radius: 2px; background: var(--accent-gold); transform: rotate(45deg); flex-shrink: 0; }
.brand-name { font-weight: 700; font-size: 14px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-faint); white-space: nowrap; overflow: hidden; }
.breadcrumb a { text-decoration: none; color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--text-primary); }
.breadcrumb-current { color: var(--text-primary); }
.course-header-meta { display: flex; flex-direction: column; align-items: center; line-height: 1.25; text-align: center; }
.meta-kicker { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-gold); font-weight: 700; }
.meta-title { font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-primary); font-weight: 600; }
.course-header-right { display: flex; align-items: center; gap: 10px; }

.hdr-btn { font: 600 12.5px var(--font-ui); color: var(--text-secondary); background: transparent; border: 1px solid var(--border); border-radius: 7px; padding: 7px 12px; cursor: pointer; text-decoration: none; white-space: nowrap; transition: color 150ms, border-color 150ms; min-height: 34px; display: inline-flex; align-items: center; gap: 6px; }
.hdr-btn:hover { color: var(--text-primary); border-color: var(--border-strong); }
.hdr-btn-gold { background: var(--accent-gold); border-color: var(--accent-gold); color: #1a1305; }
.hdr-btn-gold:hover { color: #1a1305; filter: brightness(1.06); }

.popover-wrap { position: relative; }
.lessons-panel, .account-dropdown { position: absolute; top: calc(100% + 8px); right: 0; min-width: 240px; background: var(--surface-hover); border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 24px 48px -24px rgba(0,0,0,.7); padding: 8px; z-index: 70; }
.lessons-panel-title { margin: 6px 8px 8px; font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-faint); }
.lessons-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.lessons-item { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 6px; text-decoration: none; font-size: 13px; color: var(--text-secondary); }
.lessons-item:hover { background: rgba(255,255,255,.05); color: var(--text-primary); }
.lessons-item.is-current { color: var(--accent-gold); background: var(--accent-gold-soft); }
.lessons-item.is-soon { color: var(--text-faint); cursor: default; }
.lessons-item.is-soon:hover { background: none; color: var(--text-faint); }
.lessons-item em { margin-left: auto; font-style: normal; font-size: 10px; text-transform: uppercase; letter-spacing: .08em; border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; }
.lessons-num { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); }

.account-toggle { display: inline-flex; align-items: center; gap: 8px; background: transparent; border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px 4px 4px; color: var(--text-primary); cursor: pointer; font: 500 12px var(--font-ui); min-height: 34px; }
.account-toggle:hover, .account-toggle[aria-expanded="true"] { border-color: var(--border-strong); background: rgba(255,255,255,.04); }
.account-avatar { width: 24px; height: 24px; border-radius: 50%; background: var(--accent-gold); color: #1a1305; font-weight: 700; font-size: 11px; display: inline-flex; align-items: center; justify-content: center; }
.account-dropdown { min-width: 180px; display: flex; flex-direction: column; gap: 2px; }
.account-dropdown-name { padding: 8px 10px; color: var(--text-faint); font-size: 11.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-dropdown a, .account-dropdown button { display: block; width: 100%; text-align: left; background: none; border: none; color: var(--text-secondary); font: 400 12.5px var(--font-ui); padding: 8px 10px; border-radius: 6px; cursor: pointer; text-decoration: none; }
.account-dropdown a:hover, .account-dropdown button:hover { color: var(--text-primary); background: rgba(255,255,255,.05); }

.course-progress { border-top: 1px solid var(--border); }
.course-progress-inner { max-width: 1760px; margin: 0 auto; padding: 0 24px; height: var(--progress-h); display: flex; align-items: center; gap: 16px; }
.progress-course { font-size: 10px; letter-spacing: .14em; color: var(--text-faint); font-weight: 600; white-space: nowrap; }
.progress-track { flex: 1; display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 4px; }
.progress-seg { height: 3px; border-radius: 2px; background: rgba(255,255,255,.09); }
.progress-seg.is-done { background: var(--accent-gold); opacity: .55; }
.progress-seg.is-current { background: var(--accent-gold); box-shadow: 0 0 0 1px rgba(214,182,107,.25); }
.progress-count { font-family: var(--font-mono); font-size: 11px; color: var(--text-secondary); white-space: nowrap; }

/* ------------------------------ layout ------------------------------ */

.lesson-shell { max-width: 1760px; margin: 0 auto; padding: 32px 32px 60px; display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 48px; align-items: start; }
.lesson-main { max-width: 1240px; width: 100%; min-width: 0; }

/* Lesson-to-lesson navigation (sidebar list + all-lessons grid) */
.toc-title.toc-title-lessons { margin-top: 26px; }
.toc-lessons { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.tl-item { display: flex; gap: 10px; align-items: baseline; padding: 6px 8px; border-radius: 6px; font-size: 12.5px; color: var(--text-secondary); text-decoration: none; line-height: 1.35; }
.tl-item b { font: 600 10.5px var(--font-mono); color: var(--text-faint); flex: none; }
a.tl-item:hover { background: var(--surface-hover); color: var(--text-primary); }
.tl-item.is-current { background: rgba(214,182,107,.1); color: var(--accent-gold); }
.tl-item.is-current b { color: var(--accent-gold); }
.tl-item.is-soon { opacity: .5; cursor: default; }
.lesson-all { margin: 8px 0 40px; }
.lesson-all-title { margin: 0 0 14px; font: 700 10.5px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); }
.lesson-all-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.la-card { display: flex; flex-direction: column; gap: 4px; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); text-decoration: none; color: var(--text-primary); transition: transform 150ms ease, border-color 150ms ease; }
.la-card small { font: 600 10px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); }
.la-card b { font-weight: 600; font-size: .92rem; }
a.la-card:hover { transform: translateY(-2px); border-color: var(--accent-gold); }
.la-card.is-current { border-color: rgba(214,182,107,.5); background: rgba(214,182,107,.08); }
.la-card.is-current small { color: var(--accent-gold); }
.la-card.is-soon { opacity: .5; border-style: dashed; cursor: default; }
.lesson-toc { position: sticky; top: calc(var(--header-h) + var(--progress-h) + 24px); max-height: calc(100vh - var(--header-h) - var(--progress-h) - 48px); overflow-y: auto; scrollbar-width: thin; }
.toc-toggle { display: none; }
.toc-title { margin: 0 0 12px; font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); }
.toc-list { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--border); display: flex; flex-direction: column; }
.toc-link { display: block; padding: 6px 0 6px 14px; margin-left: -1px; border-left: 2px solid transparent; font-size: 12.5px; color: var(--text-secondary); text-decoration: none; transition: color 150ms, border-color 150ms; }
.toc-link:hover { color: var(--text-primary); }
.toc-link.is-active { color: var(--accent-gold); border-left-color: var(--accent-gold); }

/* ------------------------------ hero ------------------------------ */

.lesson-hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 32px; align-items: center; padding: 20px 0 44px; border-bottom: 1px solid var(--border); margin-bottom: 44px; }
.eyebrow { margin: 0 0 14px; font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--accent-gold); font-weight: 700; }
.lesson-title { font-family: var(--font-display); font-weight: 500; font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.08; margin: 0 0 16px; letter-spacing: -0.01em; }
.lesson-subtitle { margin: 0 0 22px; font-size: 1.05rem; line-height: 1.6; color: var(--text-secondary); max-width: 46ch; }
.lesson-meta { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.lesson-meta li { font: 500 11.5px var(--font-mono); color: var(--text-secondary); border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; }
.hero-visual { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 10px; box-shadow: 0 30px 60px -30px rgba(0,0,0,.6); }
.hero-fvg { width: 100%; height: auto; display: block; }
.hero-zone { fill: rgba(63,174,127,.16); }
.hero-zone-line { stroke: var(--bullish); stroke-dasharray: 4 4; opacity: .7; }
.hero-fvg .hc line { stroke: var(--bullish); stroke-width: 1.6; }
.hero-fvg .hc rect { fill: var(--bullish); }
.hero-fvg .hc-late line { stroke: var(--bullish); opacity: .55; }
.hero-fvg .hc-late rect { fill: var(--bullish); opacity: .55; }
.hero-tag { fill: var(--text-secondary); font: 700 11px var(--font-mono); text-anchor: middle; }
.hero-zone-label { fill: var(--bullish); font: 700 10px var(--font-mono); letter-spacing: .12em; }

/* ------------------------------ sections ------------------------------ */

.lesson-section { margin-bottom: 72px; scroll-margin-top: calc(var(--header-h) + var(--progress-h) + 20px); }
.section-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.section-num { font: 500 13px var(--font-mono); color: var(--accent-gold); letter-spacing: .06em; min-width: 26px; }
.section-head h2 { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.005em; }

.prose { max-width: 68ch; }
.prose p, .prose li { font-size: 1.02rem; line-height: 1.75; color: var(--reading-text); }
.prose p { margin: 0 0 16px; }
.prose strong { color: var(--text-primary); font-weight: 600; }
.prose em { color: var(--text-primary); font-style: italic; }
.rule-list { margin: 0 0 16px; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; }
.t-bull { color: var(--bullish) !important; }
.t-bear { color: var(--bearish) !important; }

.badge { display: inline-flex; align-items: center; border-radius: 999px; padding: 3px 10px; font: 700 10.5px var(--font-ui); letter-spacing: .06em; text-transform: uppercase; }
.badge-bullish { background: var(--bullish-soft); color: var(--bullish); }
.badge-bearish { background: var(--bearish-soft); color: var(--bearish); }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 320px); gap: 28px; align-items: center; margin: 22px 0; }

.definition-card { background: linear-gradient(135deg, rgba(214,182,107,.10), rgba(214,182,107,.03)); border: 1px solid rgba(214,182,107,.28); border-radius: 12px; padding: 20px 24px; margin: 22px 0; }
.definition-label { display: block; font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--accent-gold); font-weight: 700; margin-bottom: 8px; }
.definition-card p { margin: 0; font-family: var(--font-display); font-size: 1.25rem; line-height: 1.45; }

.callout { border-radius: 10px; padding: 14px 18px; margin: 20px 0; border: 1px solid var(--border); background: var(--surface); }
.callout-label { display: block; font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; font-weight: 700; margin-bottom: 4px; color: var(--pattern-accent); }
.callout p { margin: 0; color: var(--reading-text); line-height: 1.6; }
.callout-remember { border-left: 3px solid var(--pattern-accent); }

.read-steps { list-style: none; counter-reset: rs; padding: 0; margin: 22px 0; display: grid; gap: 10px; }
.read-steps li { counter-increment: rs; position: relative; padding: 12px 14px 12px 52px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; color: var(--reading-text); line-height: 1.55; font-size: .98rem; }
.read-steps li::before { content: counter(rs); position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--border-strong); display: grid; place-items: center; font: 600 12px var(--font-mono); color: var(--accent-gold); }
.read-steps b { color: var(--text-primary); font-weight: 600; }

.concept-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 8px; }
.concept-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px; transition: transform 200ms var(--ease), border-color 200ms; }
.concept-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.concept-gold { border-color: rgba(214,182,107,.35); background: linear-gradient(180deg, rgba(214,182,107,.08), var(--surface)); }
.concept-num { font: 700 10.5px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent-gold); }
.concept-title { margin: 8px 0 6px; font-size: 1rem; font-weight: 600; }
.concept-body { margin: 0; font-size: .9rem; line-height: 1.55; color: var(--text-secondary); }

.equation { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; font-family: var(--font-mono); }
.eq-title { display: block; font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--bullish); margin-bottom: 12px; }
.eq-bear .eq-title { color: var(--bearish); }
.eq-row { display: flex; justify-content: space-between; font-size: 14px; padding: 4px 0; color: var(--text-secondary); }
.eq-row b { color: var(--text-primary); font-weight: 600; }
.eq-rule { height: 1px; background: var(--border-strong); margin: 6px 0; }
.eq-gap b { color: var(--accent-gold); }

.compare-title { font-family: var(--font-display); font-weight: 500; font-size: 1.2rem; margin: 34px 0 14px; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.compare-card { border-radius: 12px; padding: 18px; background: var(--surface); border: 1px solid var(--border); }
.compare-bull { border-top: 2px solid var(--bullish); }
.compare-bear { border-top: 2px solid var(--bearish); }
.compare-rule { display: block; font: 600 1.05rem var(--font-mono); margin: 14px 0; color: var(--text-primary); }
.compare-card dl { margin: 0; display: grid; gap: 8px; }
.compare-card dl div { display: flex; justify-content: space-between; gap: 12px; font-size: .88rem; border-top: 1px solid var(--border); padding-top: 8px; }
.compare-card dt { color: var(--text-faint); }
.compare-card dd { margin: 0; color: var(--text-primary); font-family: var(--font-mono); font-size: .82rem; }

.insight-card { margin: 0; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.insight-label { display: block; font: 700 10.5px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-gold); margin-bottom: 8px; text-align: center; }
.insight-card svg { width: 100%; height: auto; }
.ins-zone { fill: rgba(63,174,127,.16); stroke: var(--bullish); stroke-dasharray: 4 4; }
.insight-card .hc line { stroke: var(--bullish); stroke-width: 1.5; }
.insight-card .hc rect { fill: var(--bullish); }
.ins-gap { fill: var(--bullish); font: 700 11px var(--font-mono); letter-spacing: .14em; }
.ins-cap { fill: var(--text-secondary); font: 500 10px var(--font-mono); }

.context-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 22px 0; }
.context-item { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.context-item b { font-size: .92rem; }
.context-item span { font-size: .85rem; color: var(--text-secondary); line-height: 1.5; }

.warning-card { border: 1px solid rgba(214,182,107,.5); background: linear-gradient(135deg, rgba(214,182,107,.12), rgba(209,106,99,.05)); border-radius: 12px; padding: 20px 24px; margin-top: 8px; }
.warning-label { display: block; font: 700 1.1rem var(--font-mono); color: var(--accent-gold); margin-bottom: 8px; letter-spacing: .02em; }
.warning-card p { margin: 0; font-size: 1.02rem; line-height: 1.6; color: var(--text-primary); }

.tf-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 22px; }
.tf-chip { font: 600 13px var(--font-mono); padding: 8px 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text-secondary); display: inline-flex; align-items: center; gap: 8px; }
.tf-chip small { font: 600 9px var(--font-ui); letter-spacing: .08em; text-transform: uppercase; }
.tf-chip.is-common { color: var(--accent-gold); border-color: rgba(214,182,107,.5); background: var(--accent-gold-soft); }

/* ------------------------- educational charts ------------------------- */

.edu-figure { margin: 26px 0; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 16px; box-shadow: 0 24px 48px -30px rgba(0,0,0,.65); }
.edu-figure-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.edu-figure-title { margin: 0 0 4px; font-family: var(--font-display); font-weight: 500; font-size: 1.15rem; }
.edu-figure-sub { margin: 0; font-size: .88rem; color: var(--text-secondary); line-height: 1.5; max-width: 60ch; }
.edu-badge { flex: none; font: 600 10px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-faint); border: 1px solid var(--border); border-radius: 999px; padding: 4px 10px; white-space: nowrap; }

.edu-stage { position: relative; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.edu-stage.edu-tall { height: 460px; }
.edu-stage.edu-mini { height: 300px; }
.edu-chart { position: absolute; inset: 0; z-index: 2; }
.edu-layer { position: absolute; inset: 0; pointer-events: none; }
.edu-under { z-index: 1; }
.edu-over { z-index: 3; }

.zone { position: absolute; border-radius: 3px; opacity: 0; clip-path: inset(-40px 100% -40px 0); transition: clip-path 650ms var(--ease), opacity 250ms ease, background-color 500ms ease, border-color 500ms ease; }
.zone.is-on { opacity: 1; clip-path: inset(-40px -140px -40px 0); }
.zone-bullish { background: rgba(63,174,127,.17); border-top: 1px dashed var(--bullish); border-bottom: 1px dashed var(--bullish); }
.zone-bearish { background: rgba(209,106,99,.17); border-top: 1px dashed var(--bearish); border-bottom: 1px dashed var(--bearish); }
.zone-overlap { background: rgba(214,182,107,.22); border-top: 1px dashed var(--accent-gold); border-bottom: 1px dashed var(--accent-gold); }
.zone.is-invalid { background: repeating-linear-gradient(135deg, rgba(147,162,176,.13) 0 6px, rgba(147,162,176,.04) 6px 12px); border-color: var(--text-faint); }
.zone-label { transition: color 400ms ease; position: absolute; right: 6px; bottom: 100%; margin-bottom: 4px; font: 700 9.5px var(--font-mono); letter-spacing: .1em; padding: 2px 6px; border-radius: 4px; background: rgba(7,15,22,.7); white-space: nowrap; }
.zone.is-invalid .zone-label { bottom: auto; top: 100%; margin: 4px 0 0; right: 44px; }
.zone-overlap .zone-label { bottom: auto; right: auto; left: 100%; top: 50%; transform: translateY(-50%); margin: 0 0 0 8px; }
.zone-overlap .zone-edge { display: none; }
.zone-bullish .zone-label { color: var(--bullish); }
.zone-bearish .zone-label { color: var(--bearish); }
.zone-overlap .zone-label { color: var(--accent-gold); }
.zone.is-invalid .zone-label { color: var(--text-secondary); }
.zone-edge { position: absolute; right: 6px; font: 600 10px var(--font-mono); color: var(--text-secondary); background: rgba(7,15,22,.7); padding: 1px 5px; border-radius: 3px; }
.zone.is-narrow .zone-label, .zone.is-narrow .zone-edge, .zone.is-thin .zone-edge { display: none; }
.zone-edge-top { top: 2px; }
.zone-edge-bottom { bottom: 2px; }

.band { position: absolute; top: 0; bottom: 0; background: rgba(127,161,201,.10); border-left: 1px solid rgba(127,161,201,.3); border-right: 1px solid rgba(127,161,201,.3); opacity: 0; transition: opacity 300ms ease; }
.band.is-on { opacity: 1; }

.tag, .chip { position: absolute; transform: translate(-50%, 0); opacity: 0; transition: opacity 300ms ease; white-space: nowrap; }
.tag.is-on, .chip.is-on { opacity: 1; }
.tag { width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; font: 700 11px var(--font-mono); color: #0b141c; background: var(--accent-gold); }
.chip { font: 700 9.5px var(--font-mono); letter-spacing: .1em; padding: 3px 8px; border-radius: 4px; background: rgba(16,28,38,.92); border: 1px solid var(--border-strong); color: var(--text-primary); }
.chip.chip-active { border-color: var(--accent-gold); color: var(--accent-gold); }
.chip.tone-bull { color: var(--bullish); border-color: rgba(63,174,127,.5); }
.chip.tone-bear { color: var(--bearish); border-color: rgba(209,106,99,.5); }

.edu-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 12px; }
.edu-stages { display: flex; flex-wrap: wrap; gap: 6px; margin-right: auto; }
.edu-btn { font: 600 12.5px var(--font-ui); padding: 9px 14px; min-height: 40px; border-radius: 7px; cursor: pointer; border: 1px solid var(--border-strong); background: transparent; color: var(--text-primary); transition: background-color 150ms, border-color 150ms, color 150ms, transform 150ms var(--ease); }
.edu-btn:hover { border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.04); }
.edu-btn:active { transform: scale(.98); }
.edu-btn[aria-pressed="true"], .edu-btn.is-active { background: var(--accent-gold-soft); border-color: var(--accent-gold); color: var(--accent-gold); }
.edu-btn-ghost { color: var(--text-secondary); border-color: var(--border); }
.edu-stage-text { margin: 12px 0 0; padding: 10px 14px; border-left: 2px solid var(--accent-gold); background: rgba(255,255,255,.03); border-radius: 0 8px 8px 0; font-size: .92rem; line-height: 1.55; color: var(--reading-text); min-height: 3.2em; }
.edu-caption { margin-top: 12px; font-size: .82rem; color: var(--text-faint); line-height: 1.5; }

.practice-readout { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 14px 0 0; animation: rise 400ms var(--ease); }
.practice-readout div { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.practice-readout dt { font: 600 10px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); }
.practice-readout dd { margin: 4px 0 0; font: 600 1.25rem var(--font-mono); color: var(--text-primary); }
.practice-readout div:last-child dd { color: var(--accent-gold); }

/* ------------------------------ knowledge checks ------------------------------ */

.kc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.kc { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.kc-kicker { margin: 0; font: 700 10.5px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent-gold); }
.kc-title { margin: 0; font-size: 1rem; font-weight: 600; }
.kc .edu-figure { margin: 0; padding: 0; border: 0; background: none; box-shadow: none; }
.kc .edu-stage.edu-mini { height: 240px; }
.kc-question { margin: 4px 0 0; font-weight: 600; font-size: 1rem; }
.kc-options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.kc-option { font: 700 13px var(--font-ui); letter-spacing: .06em; text-transform: uppercase; padding: 12px; min-height: 46px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--surface-hover); color: var(--text-primary); cursor: pointer; transition: all 150ms; }
.kc-option:hover:not(:disabled) { border-color: var(--accent-gold); }
.kc-option:disabled { cursor: default; opacity: .7; }
.kc-option.is-correct { background: var(--bullish-soft); border-color: var(--bullish); color: var(--bullish); opacity: 1; }
.kc-option.is-wrong { background: var(--bearish-soft); border-color: var(--bearish); color: var(--bearish); opacity: 1; }
.kc-feedback { margin: 0; padding: 10px 12px; border-radius: 8px; font-size: .92rem; line-height: 1.5; animation: rise 300ms var(--ease); }
.kc-feedback.is-correct { background: var(--bullish-soft); color: #bfe8d4; }
.kc-feedback.is-wrong { background: var(--bearish-soft); color: #f0c3bf; }
.kc-tag { margin: 0; font: 700 11px var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-gold); }

/* ------------------------------ summary + nav ------------------------------ */

.summary-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 22px 24px; }
.summary-list { list-style: none; margin: 0 0 20px; padding: 0; display: grid; gap: 12px; }
.summary-list li { position: relative; padding-left: 28px; line-height: 1.55; color: var(--reading-text); }
.summary-list li::before { content: "\2713"; position: absolute; left: 0; top: 0; color: var(--bullish); font-weight: 700; }
.key-rule { border-top: 1px solid var(--border); padding-top: 16px; }
.key-rule-label { font: 700 10.5px var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent-gold); }
.key-rule p { margin: 6px 0 0; font-family: var(--font-display); font-size: 1.2rem; line-height: 1.45; }

.lesson-nav { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; margin: 20px 0 40px; padding: 18px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.lesson-nav-back { text-decoration: none; color: var(--text-secondary); font-size: .92rem; justify-self: start; }
.lesson-nav-back:hover { color: var(--text-primary); }
.lesson-nav-count { font: 500 12px var(--font-mono); color: var(--text-faint); }
.lesson-nav-next { justify-self: end; text-decoration: none; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; padding: 12px 20px; border-radius: 10px; background: var(--accent-gold); color: #1a1305; transition: transform 200ms var(--ease), box-shadow 200ms; }
.lesson-nav-next:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(214,182,107,.22); }
.lesson-nav-next small { font: 700 10px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; opacity: .75; }
.lesson-nav-next span { font-weight: 700; font-size: .95rem; }
.lesson-nav-next.is-disabled { background: var(--surface); color: var(--text-faint); border: 1px dashed var(--border-strong); cursor: not-allowed; }
.lesson-nav-next.is-disabled:hover { transform: none; box-shadow: none; }
.lesson-nav-next.is-disabled span { color: var(--text-secondary); }

.further-reading h3 { font: 700 10.5px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); margin: 0 0 10px; }
.further-reading ul { list-style: none; margin: 0; padding: 0; }
.further-reading li a { color: var(--pattern-accent); text-decoration: none; font-weight: 500; }
.further-reading li a:hover { text-decoration: underline; }
.further-reading li small { display: block; color: var(--text-faint); margin-top: 4px; font-size: .82rem; }
.edu-disclaimer { margin-top: 16px; font-size: .78rem; color: var(--text-faint); }

/* --------------------------- lesson 02 additions --------------------------- */

.inline-link { color: var(--accent-gold); text-decoration: underline; text-underline-offset: 3px; }
.goal-list { margin: 8px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.goal-list li { position: relative; padding: 10px 14px 10px 40px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; color: var(--reading-text); font-size: .96rem; }
.goal-list li::before { content: "\2192"; position: absolute; left: 16px; top: 10px; color: var(--accent-gold); font-weight: 700; }

.hc-g line { stroke: var(--bullish); stroke-width: 1.6; } .hc-g rect { fill: var(--bullish); }
.hc-r line { stroke: var(--bearish); stroke-width: 1.6; } .hc-r rect { fill: var(--bearish); }
.hi-red { fill: rgba(209,106,99,.20); } .hi-green { fill: rgba(63,174,127,.20); }
.hi-edge { stroke: var(--text-secondary); stroke-dasharray: 4 4; opacity: .55; }
.hi-tag { fill: var(--text-secondary); font: 700 9px var(--font-mono); letter-spacing: .12em; }
.hi-tag-red { fill: var(--bearish); } .hi-tag-green { fill: var(--bullish); }

.concept-flow { display: flex; align-items: stretch; justify-content: center; gap: 10px; margin: 24px 0 8px; flex-wrap: wrap; }
.cf-box { flex: 1 1 150px; max-width: 220px; text-align: center; padding: 16px 14px; border-radius: 12px; border: 1px solid rgba(209,106,99,.45); background: rgba(209,106,99,.08); display: flex; flex-direction: column; gap: 6px; }
.cf-box span { font: 700 10px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--text-secondary); }
.cf-box b { font-family: var(--font-display); font-weight: 500; font-size: 1.25rem; }
.cf-mid { border-color: var(--border-strong); background: repeating-linear-gradient(135deg, rgba(147,162,176,.10) 0 6px, rgba(147,162,176,.03) 6px 12px); }
.cf-end { border-color: rgba(63,174,127,.5); background: rgba(63,174,127,.10); }
.cf-arrow { align-self: center; color: var(--accent-gold); font-size: 1.4rem; }

.callout-key { border-left: 3px solid var(--accent-gold); background: linear-gradient(135deg, rgba(214,182,107,.10), rgba(214,182,107,.03)); border-color: rgba(214,182,107,.3); }
.callout-key .callout-label { color: var(--accent-gold); }
.callout-key p { font-family: var(--font-display); font-size: 1.15rem; color: var(--text-primary); }

.badge-gold { background: var(--accent-gold-soft); color: var(--accent-gold); }
.badge-soon { background: transparent; color: var(--text-secondary); border: 1px dashed var(--border-strong); }
.compare-neutral { border-top: 2px solid var(--accent-gold); }
.compare-text { margin: 10px 0 0; color: var(--text-secondary); font-size: .9rem; line-height: 1.55; }
.compare-tagline { margin: 12px 0 14px; font-family: var(--font-display); font-size: 1.1rem; color: var(--text-primary); }
.mini-illustration { display: block; width: 100%; max-width: 220px; margin: 12px 0 0; }
.mi-zone { fill: rgba(209,106,99,.18); stroke: var(--bearish); stroke-dasharray: 4 4; }

.flow-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; font-family: var(--font-mono); }
.flow-title { display: block; font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 12px; color: var(--accent-gold); }
.flow-bull .flow-title { color: var(--bullish); } .flow-bear .flow-title { color: var(--bearish); }
.flow-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; align-items: stretch; }
.flow-step { text-align: center; font-size: 12.5px; letter-spacing: .06em; padding: 9px 10px; border: 1px solid var(--border-strong); border-radius: 8px; color: var(--text-primary); position: relative; margin-bottom: 20px; }
.flow-step:last-child { margin-bottom: 0; }
.flow-step:not(:last-child)::after { content: "\2193"; position: absolute; left: 50%; bottom: -19px; transform: translateX(-50%); color: var(--accent-gold); font-size: 15px; line-height: 1; }
.flow-bull .flow-step.is-first { border-color: rgba(209,106,99,.55); background: rgba(209,106,99,.08); }
.flow-bull .flow-step.is-last { border-color: rgba(63,174,127,.6); background: rgba(63,174,127,.10); }
.flow-bear .flow-step.is-first { border-color: rgba(63,174,127,.6); background: rgba(63,174,127,.10); }
.flow-bear .flow-step.is-last { border-color: rgba(209,106,99,.55); background: rgba(209,106,99,.08); }
.flow-gold .flow-step { border-color: rgba(214,182,107,.35); }
.flow-roles { margin: 16px 0 0; display: grid; gap: 8px; }
.flow-roles div { display: flex; justify-content: space-between; gap: 12px; border-top: 1px solid var(--border); padding-top: 8px; font-size: 11.5px; }
.flow-roles dt { color: var(--text-faint); text-transform: uppercase; letter-spacing: .08em; }
.flow-roles dd { margin: 0; color: var(--text-primary); text-align: right; }
.recap-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.mistake-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.mistake-card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px 18px 18px 54px; }
.mistake-x { position: absolute; left: 16px; top: 16px; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--bearish-soft); color: var(--bearish); font-weight: 700; }
.mistake-title { margin: 0 0 6px; font-size: 1rem; font-weight: 600; }
.mistake-fix { margin: 0; color: var(--text-secondary); font-size: .9rem; line-height: 1.55; }
.mistake-fix b { color: var(--bullish); font-weight: 600; }

.context-grid-3 { grid-template-columns: repeat(3, 1fr); }

.level { position: absolute; height: 0; border-top: 1px dashed var(--accent-gold); opacity: 0; transition: opacity 350ms ease; }
.level.is-on { opacity: .85; }
.level-label { position: absolute; left: 6px; top: 4px; font: 700 9px var(--font-mono); letter-spacing: .1em; color: var(--accent-gold); }
.chip.tone-gold { color: var(--accent-gold); border-color: rgba(214,182,107,.55); }
.chip.has-tip { pointer-events: auto; cursor: help; }
.chip.has-tip::before { content: "?"; display: inline-grid; place-items: center; width: 12px; height: 12px; margin-right: 6px; border-radius: 50%; border: 1px solid currentColor; font-size: 8px; }
.chip.has-tip::after { content: attr(data-tip); position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translateX(-50%); width: max-content; max-width: 220px; white-space: normal; font: 500 11px var(--font-ui); letter-spacing: 0; text-transform: none; line-height: 1.4; padding: 8px 10px; border-radius: 6px; background: var(--surface-hover); border: 1px solid var(--border-strong); color: var(--text-primary); opacity: 0; pointer-events: none; transition: opacity 150ms ease; }
.chip.has-tip:hover::after, .chip.has-tip:focus-visible::after { opacity: 1; }

.practice-readout.is-text dd { font: 600 1rem var(--font-ui); color: var(--text-primary); }
.practice-readout.is-text div:last-child dd { color: var(--bullish); }

.lesson-nav-left { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.lesson-nav-prev { text-decoration: none; display: flex; flex-direction: column; gap: 2px; padding: 12px 20px; border-radius: 10px; border: 1px solid var(--border-strong); color: var(--text-primary); transition: transform 200ms var(--ease), border-color 200ms; }
.lesson-nav-prev:hover { transform: translateY(-2px); border-color: var(--accent-gold); }
.lesson-nav-prev small { font: 700 10px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--text-secondary); }
.lesson-nav-prev span { font-weight: 600; font-size: .95rem; }
.lesson-nav-left .lesson-nav-back { font-size: .8rem; color: var(--text-faint); }

.kc-grid > .kc:last-child:nth-child(odd) { grid-column: 1 / -1; }
.kc-grid > .kc:last-child:nth-child(odd) .edu-stage.edu-mini { height: 280px; }

@media (max-width: 860px) {
  .context-grid-3, .mistake-grid, .recap-grid, .practice-readout.is-text { grid-template-columns: 1fr; }
  .kc-grid > .kc:last-child:nth-child(odd) { grid-column: auto; }
}
@media (max-width: 560px) {
  .lesson-nav-left { align-items: stretch; }
  .lesson-nav-prev { align-items: center; text-align: center; }
}

/* --------------------------- lesson 03 additions --------------------------- */

/* Order-block zones share the FVG zone element; the solid, thicker left edge marks the origin candle. */
.zone-ob.zone-bullish { background: rgba(63,174,127,.20); border: 1px solid rgba(63,174,127,.75); border-left: 3px solid var(--bullish); }
.zone-ob.zone-bearish { background: rgba(209,106,99,.20); border: 1px solid rgba(209,106,99,.75); border-left: 3px solid var(--bearish); }
.zone.zone-ob.is-invalid { background: repeating-linear-gradient(135deg, rgba(147,162,176,.13) 0 6px, rgba(147,162,176,.04) 6px 12px); border-color: var(--text-faint); }
/* A zone may ask for its label under the rectangle (used where price returns from above). */
.zone.label-below .zone-label { bottom: auto; top: 100%; margin: 4px 0 0; }
.zone-gold { background: rgba(214,182,107,.18); border-top: 1px dashed var(--accent-gold); border-bottom: 1px dashed var(--accent-gold); }
.zone-gold .zone-label { color: var(--accent-gold); }
.zone-fvg { z-index: 0; }

.edu-question { margin: 14px 0 0; font-weight: 600; }
.edu-options { margin-top: 10px; }
.edu-options-4 { grid-template-columns: repeat(4, 1fr); }
.edu-figure .kc-feedback { margin-top: 10px; }

.flow-step.is-key { border-color: rgba(214,182,107,.7); background: rgba(214,182,107,.10); color: var(--accent-gold); font-weight: 700; }
.flow-bull .flow-step.is-key { border-color: rgba(63,174,127,.7); background: rgba(63,174,127,.12); color: var(--bullish); }
.flow-bear .flow-step.is-key { border-color: rgba(209,106,99,.7); background: rgba(209,106,99,.12); color: var(--bearish); }

.five-steps { border-left: 3px solid var(--accent-gold); padding-left: 14px; margin-top: 18px; animation: rise 400ms var(--ease); }
.five-steps li { font-size: .98rem; }
.five-steps-title { margin: 18px 0 0; font: 700 10.5px var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent-gold); }

.formula-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 20px 0; }
.formula-card { border-radius: 12px; padding: 16px 18px; background: var(--surface); border: 1px solid var(--border); font: 600 .9rem var(--font-mono); line-height: 1.7; letter-spacing: .03em; }
.formula-card small { display: block; font: 700 10px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; margin-bottom: 8px; }
.formula-bull { border-top: 2px solid var(--bullish); } .formula-bull small { color: var(--bullish); }
.formula-bear { border-top: 2px solid var(--bearish); } .formula-bear small { color: var(--bearish); }
.formula-card .plus { color: var(--accent-gold); }

.candle-diagram { display: block; width: 100%; max-width: 320px; margin: 0 auto; }
.cd-zone { fill: rgba(63,174,127,.16); stroke: var(--bullish); stroke-dasharray: 4 4; }
.cd-line { stroke: var(--text-secondary); stroke-dasharray: 3 3; }
.cd-label { fill: var(--text-secondary); font: 600 10px var(--font-mono); letter-spacing: .1em; }
.cd-candle line { stroke: var(--bearish); stroke-width: 1.8; } .cd-candle rect { fill: var(--bearish); }
.cd-note { fill: var(--accent-gold); font: 700 10px var(--font-mono); letter-spacing: .1em; }

.ho-zone { fill: rgba(63,174,127,.20); stroke: var(--bullish); stroke-width: 1; }
.ho-edge { stroke: var(--bullish); stroke-dasharray: 4 4; opacity: .7; }
.hero-ob .hc-g rect, .hero-ob .hc-r rect { opacity: .95; }

.mistake-grid > .mistake-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.compare-formula { font-family: var(--font-mono); font-size: .82rem; letter-spacing: .03em; line-height: 1.7; color: var(--text-primary); margin: 12px 0 0; }

@media (max-width: 860px) {
  .formula-pair, .edu-options-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .formula-pair { grid-template-columns: 1fr; }
}

/* --------------------------- lesson 05 additions --------------------------- */

/* Small dot marking the exact price of a swing point (HH / HL / LH / LL). */
.swing-dot { position: absolute; width: 7px; height: 7px; border-radius: 50%; transform: translate(-50%, -50%); background: var(--accent-gold); border: 1px solid var(--bg-primary); opacity: 0; transition: opacity 300ms ease; }
.swing-dot.is-on { opacity: 1; }
.swing-dot.tone-bull { background: var(--bullish); }
.swing-dot.tone-bear { background: var(--bearish); }

.structure-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 20px 0; }
.structure-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.structure-card small { display: block; font: 700 10px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; margin-bottom: 6px; }
.structure-card svg { display: block; width: 100%; height: auto; }
.structure-card p { margin: 8px 0 0; color: var(--text-secondary); font-size: .85rem; }
.structure-bull small { color: var(--bullish); } .structure-bear small { color: var(--bearish); } .structure-gold small { color: var(--accent-gold); }
.st-line { fill: none; stroke-width: 2.4; stroke-linejoin: round; stroke-linecap: round; }
.st-bull .st-line { stroke: var(--bullish); } .st-bear .st-line { stroke: var(--bearish); }
.st-lbl { font: 700 10px var(--font-mono); letter-spacing: .06em; }
.st-bull .st-lbl { fill: var(--bullish); } .st-bear .st-lbl { fill: var(--bearish); }
.st-bos { fill: var(--accent-gold); font: 700 9.5px var(--font-mono); letter-spacing: .1em; }
.st-guide { stroke: var(--accent-gold); stroke-dasharray: 4 4; opacity: .75; }
.st-dot-g { fill: var(--bullish); } .st-dot-r { fill: var(--bearish); }
.st-x { fill: none; stroke: var(--accent-gold); stroke-width: 2; }

.hero-structures { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 6px; }
.hero-structures svg { width: 100%; height: auto; display: block; }

.mistake-grid-5 > .mistake-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.step-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 8px; }
.step-pair .five-steps { margin-top: 6px; }

/* Lesson 06: CHoCH diagrams reuse the structure cards; these only colour a line or label per direction */
.st-l-bull { stroke: var(--bullish) !important; } .st-l-bear { stroke: var(--bearish) !important; }
.st-t-bull { fill: var(--bullish) !important; } .st-t-bear { fill: var(--bearish) !important; } .st-t-gold { fill: var(--accent-gold) !important; }
.st-fail { stroke-dasharray: 3 3; }
.st-x-bear { stroke: var(--bearish); }
/* Lesson 07: side-by-side synchronised charts and the failed-extreme accents */
.chart-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 22px 0; }
.chart-pair .edu-figure { margin: 0; padding: 12px; }
.chart-pair .edu-figure-title { font-size: 1rem; }
.title-plus { color: var(--accent-gold); }
.lesson-title .nowrap { white-space: nowrap; }
.st-t-fail { fill: var(--accent-gold) !important; }
.fail-ring { fill: none; stroke: var(--accent-gold); stroke-width: 1.6; }
.st-fail-line { stroke: var(--accent-gold); stroke-dasharray: 3 3; opacity: .85; }
.mistake-grid-7 > .mistake-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 20px 0; }
@media (max-width: 860px) { .chart-pair, .trio { grid-template-columns: 1fr; } }
.concept-grid-4 { grid-template-columns: repeat(4, 1fr); }
.kc-grid.kc-single { grid-template-columns: 1fr; max-width: 640px; }

@media (max-width: 1000px) { .concept-grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 860px) {
  .structure-pair, .step-pair { grid-template-columns: 1fr; }
  .concept-grid-4 { grid-template-columns: 1fr 1fr; }
}

/* ------------------------------ motion ------------------------------ */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity 500ms ease, transform 500ms var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .zone, .band, .tag, .chip, .level, .lesson-nav-prev, .concept-card, .lesson-nav-next, .kc-feedback, .practice-readout { transition: none !important; animation: none !important; }
  .zone { clip-path: none; }
}

/* ------------------------------ responsive ------------------------------ */

@media (max-width: 1100px) {
  .lesson-shell { grid-template-columns: 1fr; gap: 20px; padding-top: 20px; }
  .lesson-toc { position: static; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 10px; }
  .toc-toggle { display: flex; width: 100%; justify-content: space-between; align-items: center; background: none; border: none; color: var(--text-primary); font: 600 13px var(--font-ui); padding: 12px 14px; cursor: pointer; min-height: 44px; }
  .toc-inner { display: none; padding: 0 14px 12px; }
  .lesson-toc.is-open .toc-inner { display: block; }
  .lesson-toc.is-open .toc-caret { transform: rotate(180deg); }
  .breadcrumb { display: none; }
}
@media (max-width: 860px) {
  .course-header-meta { display: none; }
  .lesson-hero { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .concept-grid, .compare-grid, .context-grid, .kc-grid { grid-template-columns: 1fr; }
  .edu-stage.edu-tall { height: 380px; }
}
@media (max-width: 560px) {
  .course-header-inner, .course-progress-inner, .lesson-shell { padding-left: 14px; padding-right: 14px; }
  .brand-name, .account-label { display: none; }
  .edu-stage.edu-tall { height: 340px; }
  .edu-stage.edu-mini, .kc .edu-stage.edu-mini { height: 260px; }
  .lesson-nav { grid-template-columns: 1fr; justify-items: stretch; text-align: center; }
  .lesson-nav-back, .lesson-nav-next { justify-self: stretch; align-items: center; }
  .practice-readout { grid-template-columns: 1fr; }
  .edu-figure { padding: 12px; }
  .edu-figure-head { flex-direction: column; }
  .edu-btn { flex: 1 1 auto; }
}

/* Lesson 08: Equal Highs diagrams (off-white structure, gold EQH area) */
.hero-eqh svg, .eqh-recap svg { display: block; width: 100%; height: auto; }
.eqh-line { fill: none; stroke: var(--text-primary); stroke-width: 2.2; stroke-linejoin: round; stroke-linecap: round; opacity: .85; }
.eqh-guide { stroke: var(--accent-gold); stroke-width: 1.4; stroke-dasharray: 5 4; }
.eqh-drop { stroke: var(--accent-gold); stroke-width: 1; stroke-dasharray: 2 4; opacity: .5; }
.eqh-dot { fill: var(--accent-gold); stroke: var(--bg-primary); stroke-width: 1.2; }
.eqh-dot-off { fill: var(--bearish); }
.eqh-txt { fill: var(--text-secondary); font: 700 9.5px var(--font-mono); letter-spacing: .08em; }
.eqh-dim { fill: var(--text-faint); }
.eqh-eqh { fill: var(--accent-gold); font: 700 11px var(--font-mono); letter-spacing: .14em; }
.eqh-recap { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; max-width: 640px; }
.five-steps-wrap { margin-top: 26px; }

/* Lesson 10: Liquidity diagrams (gold levels, green buy-side, red sell-side) */
.liq-bsl { fill: rgba(63,182,139,.16); stroke: var(--bullish); stroke-width: 1; stroke-dasharray: 4 3; }
.liq-ssl { fill: rgba(209,106,99,.16); stroke: var(--bearish); stroke-width: 1; stroke-dasharray: 4 3; }
.liq-t-bsl { fill: var(--bullish); font: 700 9.5px var(--font-mono); letter-spacing: .1em; }
.liq-t-ssl { fill: var(--bearish); font: 700 9.5px var(--font-mono); letter-spacing: .1em; }
.liq-mark { fill: var(--accent-gold); font: 700 10px var(--font-mono); }
.liq-arrow { stroke: var(--text-faint); stroke-width: 1.4; fill: none; }
.liq-thin { stroke: var(--accent-gold); stroke-width: 1.6; }

/* Lesson 11: liquidity grab candle diagrams */
.grab-wick { stroke-width: 2; }
.grab-wick-bull { stroke: var(--bullish); } .grab-wick-bear { stroke: var(--bearish); }
.grab-body-bull { fill: var(--bullish); } .grab-body-bear { fill: var(--bearish); }
.hero-grabs svg { display: block; width: 100%; height: auto; }
.grab-card svg { max-width: 420px; }

/* Lesson 12: premium / discount range zones and diagrams (subtle, candles stay readable) */
.zone-pd.zone-bullish { background: rgba(63,174,127,.10); border-top: 0; border-bottom: 0; }
.zone-pd.zone-bearish { background: rgba(209,106,99,.10); border-top: 0; border-bottom: 0; }
.zone-pd .zone-label { bottom: auto; top: 6px; margin: 0; right: 8px; }
.zone-pd.zone-bullish .zone-label { top: auto; bottom: 6px; }
.zone-pd .zone-edge { display: none; }
.zone-range.zone-gold { background: rgba(214,182,107,.05); border-top: 1px dashed rgba(214,182,107,.45); border-bottom: 1px dashed rgba(214,182,107,.45); }
.zone-range .zone-edge { display: none; }
.pd-prem { fill: rgba(209,106,99,.16); stroke: var(--bearish); stroke-width: 1; }
.pd-disc { fill: rgba(63,174,127,.16); stroke: var(--bullish); stroke-width: 1; }
.pd-eq { stroke: var(--accent-gold); stroke-width: 2; }
.pd-t-prem { fill: var(--bearish); font: 700 10px var(--font-mono); letter-spacing: .12em; }
.pd-t-disc { fill: var(--bullish); font: 700 10px var(--font-mono); letter-spacing: .12em; }
.pd-t-eq { fill: var(--accent-gold); font: 700 10px var(--font-mono); letter-spacing: .12em; }
.pd-dot { fill: var(--text-primary); }
.pd-recap { max-width: 460px; }

/* Lesson 13: the propulsion block is the second Order Block; same OB look, dashed gold outline */
.zone-ob.propulsion.zone-bullish { background: rgba(63,174,127,.16); border: 1px dashed var(--accent-gold); border-left: 3px solid var(--bullish); }
.zone-ob.propulsion.zone-bearish { background: rgba(209,106,99,.16); border: 1px dashed var(--accent-gold); border-left: 3px solid var(--bearish); }
.zone-ob.propulsion .zone-label { color: var(--accent-gold); }
.pb-ob { fill: rgba(63,174,127,.20); stroke: var(--bullish); stroke-width: 1.2; }
.pb-ob-bear { fill: rgba(209,106,99,.20); stroke: var(--bearish); stroke-width: 1.2; }
.pb-new { fill: rgba(63,174,127,.16); stroke: var(--accent-gold); stroke-width: 1.4; stroke-dasharray: 4 3; }
.pb-new-bear { fill: rgba(209,106,99,.16); stroke: var(--accent-gold); stroke-width: 1.4; stroke-dasharray: 4 3; }
.pb-half { stroke: var(--accent-gold); stroke-width: 1.6; stroke-dasharray: 5 3; }

.trio-stack { display: grid; gap: 12px; }

/* Lesson 15: CISD diagrams (gold delivery-open line, muted blue liquidity level) */
.cisd-open { stroke: var(--accent-gold); stroke-width: 1.6; stroke-dasharray: 5 3; }
.cisd-liq { stroke: #6f8fb3; stroke-width: 1.3; stroke-dasharray: 2 4; }
.cisd-t-liq { fill: #6f8fb3; font: 700 9px var(--font-mono); letter-spacing: .1em; }

/* Lesson 16: BPR diagrams (muted green / red FVGs, gold overlap) */
.bpr-b { fill: rgba(63,174,127,.20); stroke: var(--bullish); stroke-width: 1; stroke-dasharray: 4 3; }
.bpr-r { fill: rgba(209,106,99,.20); stroke: var(--bearish); stroke-width: 1; stroke-dasharray: 4 3; }
.bpr-x { fill: rgba(214,182,107,.34); stroke: var(--accent-gold); stroke-width: 1.4; }
.bpr-card svg { max-width: 460px; display: block; width: 100%; height: auto; }

/* ---- Lesson 17: Breakaway Gap + course completion ---- */
.bg-fvg { fill: rgba(63,174,127,.22); stroke: var(--accent-gold); stroke-width: 2; }
.bg-arrow { stroke: var(--bullish); stroke-width: 2; fill: none; stroke-linecap: round; stroke-dasharray: 5 4; }
.bg-card svg { max-width: 460px; display: block; width: 100%; height: auto; }
.bg-tree { display: flex; flex-direction: column; align-items: center; gap: 8px; margin: 12px 0; }
.bg-tree .bg-node { padding: 10px 18px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface); font: 700 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; text-align: center; }
.bg-tree .bg-arrow-d { color: var(--text-faint); font-size: 18px; line-height: 1; }
.bg-tree .bg-branch { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; width: 100%; max-width: 620px; }
.bg-tree .bg-yes { border-color: var(--bearish); color: var(--bearish); }
.bg-tree .bg-no { border-color: var(--accent-gold); color: var(--accent-gold); background: var(--accent-gold-soft); }
.bg-tree small { display: block; margin-bottom: 4px; opacity: .8; }
.lesson-nav-final { justify-self: end; display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.lnf-back, .lnf-cta { text-decoration: none; padding: 12px 18px; border-radius: 10px; font-weight: 700; font-size: .9rem; }
.lnf-back { border: 1px solid var(--border-strong); color: var(--text); }
.lnf-cta { background: var(--accent-gold); color: #1a1305; }
.course-complete { position: relative; margin: 32px 0 8px; padding: 36px 28px; text-align: center; border: 1px solid var(--accent-gold); border-radius: 16px; background: linear-gradient(180deg, var(--accent-gold-soft), transparent); }
.cc-badge { display: inline-block; padding: 5px 14px; border-radius: 999px; border: 1px solid var(--accent-gold); color: var(--accent-gold); font: 700 11px var(--font-mono); letter-spacing: .18em; }
.cc-title { margin: 14px 0 6px; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.cc-sub { color: var(--text-muted, var(--text-faint)); margin: 0 0 20px; }
.cc-list { list-style: none; margin: 0 auto 24px; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; max-width: 760px; text-align: left; }
.cc-list li { display: flex; gap: 10px; align-items: center; padding: 10px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.cc-list li::before { content: "\2713"; color: var(--accent-gold); font-weight: 700; }
.cc-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
@media (max-width: 720px) { .lesson-nav-final { justify-content: stretch; } .lesson-nav-final a { flex: 1; text-align: center; } .bg-tree .bg-branch { grid-template-columns: 1fr; } }

.brand-logo { height: 36px; width: auto; display: block; }