@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;500;600;700;800&family=Barlow:wght@300;400;500;600&family=Inter:wght@400;500;600;700&display=swap');

/* ═══════════════════════════════════════════════════════════════════════════
   Liquidity Theory — Course 1
   lt-styles.css  |  All styles for the Liquidity Theory app
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── CSS Variables ─────────────────────────────────────────────────────────── */
:root {
  --bg:           #000000;
  --bg2:          #080808;
  --bg3:          #0f0f0f;
  --bg4:          #141414;
  --bg5:          #1a1a1a;

  --border:       #1e1e1e;
  --border2:      #2a2a2a;
  --border3:      #333333;

  --teal:         #00d4d4;
  --teal2:        #00b8b8;
  --teal3:        #009696;
  --teal-dim:     rgba(0,212,212,0.10);
  --teal-glow:    rgba(0,212,212,0.20);
  --teal-faint:   rgba(0,212,212,0.05);

  --red:          #cc2222;
  --red2:         #aa1c1c;
  --red-dim:      rgba(204, 34, 34, 0.12);
  --red-faint:    rgba(204, 34, 34, 0.06);

  --gold:         #c8960c;
  --gold-dim:     rgba(200, 150, 12, 0.12);

  --green:        #00c878;
  --green-dim:    rgba(0, 200, 120, 0.10);

  --text:         #ffffff;
  --text2:        #888888;
  --text3:        #555555;
  --text4:        #3a3a58;

  --sidebar-w:    272px;
  --header-h:     60px;
  --footer-h:     64px;
  --progress-h:   3px;

  --radius:       4px;
  --radius-lg:    6px;
  --radius-sm:    2px;

  --shadow:       0 4px 24px rgba(0,0,0,0.5);
  --shadow-sm:    0 2px 8px  rgba(0,0,0,0.35);
  --glow-teal:    0 0 20px rgba(0, 212, 212, 0.25);
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  font-size: 14.5px;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Barlow Condensed', sans-serif;
}

button {
  font-family: inherit;
  cursor: pointer;
}

a { color: var(--teal); }

/* ── Hidden utility ────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Accessibility ─────────────────────────────────────────────────────────── */
/* Visible keyboard-focus ring for all interactive elements (mouse clicks stay clean) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible,
[role="button"]:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
  border-radius: 3px;
}
/* Respect users who prefer reduced motion — neutralise animations & big transitions */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   APP LAYOUT
   ═══════════════════════════════════════════════════════════════════════════ */
.app-layout {
  display: flex;
  height: 100vh;       /* fallback for older browsers */
  height: 100dvh;      /* iOS Safari: excludes the dynamic browser toolbar */
  overflow: hidden;
  position: relative;
}

/* ═══════════════════════════════════════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  height: 100dvh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1),
              width 0.28s cubic-bezier(0.4, 0, 0.2, 1),
              min-width 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 200;
  flex-shrink: 0;
}

/* Desktop focus mode — hamburger collapses the sidebar to widen the content area */
@media (min-width: 769px) {
  .app-layout.sidebar-collapsed .sidebar {
    width: 0;
    min-width: 0;
    border-right-color: transparent;
  }
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 16px 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.15s;
}

.logo:hover {
  opacity: 0.75;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  color: var(--text);
  filter: drop-shadow(0 0 7px rgba(21, 244, 217, 0.35));
}
.logo-icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

.logo-text {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
}

.sidebar-close-btn {
  display: none;
  color: var(--text3);
  font-size: 16px;
  background: none;
  border: none;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
}

.course-select {
  width: calc(100% - 32px);
  background: var(--bg4);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 8px 12px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin: 8px 16px;
  display: block;
}

/* ── Course Accordion ─────────────────────────────────────────────────────────────────── */
.course-accordion {
  flex-shrink: 0;
}

.course-accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg3);
  cursor: pointer;
  user-select: none;
  border-left: 3px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}

.course-accordion-header:hover {
  background: var(--bg4);
}

.course-accordion--active > .course-accordion-header {
  border-left-color: var(--teal, #00d4d4);
}

.course-accordion-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text3);
}

.course-accordion-name { color: var(--text); }

.course-accordion--active > .course-accordion-header .course-accordion-label {
  color: var(--teal, #00d4d4);
}

.course-accordion-chevron {
  display: flex;
  align-items: center;
  color: var(--text3);
  transition: transform 0.25s ease;
}

.course-accordion-chevron--open {
  transform: rotate(90deg);
}

.course-accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.course-accordion-body--open {
  max-height: 2000px;
}

.chapter-item--indented {
  padding-left: 24px;
}

.sidebar-course-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text3);
  padding: 12px 16px 8px;
  flex-shrink: 0;
}

.sidebar-progress-wrap {
  padding: 0 16px 14px;
  flex-shrink: 0;
}

.sidebar-progress-track {
  height: 4px;
  background: var(--bg4);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 6px;
}

.sidebar-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--teal2));
  border-radius: 2px;
  transition: width 0.5s ease;
  width: 0%;
}

.sidebar-progress-text {
  font-size: 11px;
  color: var(--text3);
  font-weight: 500;
}

/* Chapter list */
.chapter-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4px 8px 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border3) transparent;
}

.chapter-list::-webkit-scrollbar {
  width: 4px;
}
.chapter-list::-webkit-scrollbar-track { background: transparent; }
.chapter-list::-webkit-scrollbar-thumb {
  background: var(--border3);
  border-radius: 2px;
}

.chapter-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  border: 1px solid transparent;
  margin-bottom: 2px;
  position: relative;
}

.chapter-item:hover:not(.chapter-item--locked) {
  background: var(--teal-faint);
  border-color: var(--border2);
}

.chapter-item--active {
  background: var(--teal-dim) !important;
  border-color: rgba(0,212,212,0.3) !important;
}

.chapter-item--locked {
  opacity: 0.45;
  cursor: not-allowed;
}

.chapter-item--completed .chapter-num {
  color: var(--teal);
}

.chapter-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--text3);
  min-width: 20px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.chapter-item-info {
  flex: 1;
  min-width: 0;
}

.chapter-item-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.chapter-item-tag {
  font-size: 10px;
  color: var(--text3);
  margin-top: 1px;
}

.chapter-status {
  font-size: 11px;
  flex-shrink: 0;
}

/* Sidebar footer */
.sidebar-footer {
  padding: 12px 12px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.btn-exam {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 16px;
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text2);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-exam:not(:disabled):hover {
  background: var(--teal-dim);
  border-color: var(--teal);
  color: var(--teal);
  box-shadow: var(--glow-teal);
}

.btn-exam:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-exam:not(:disabled) .exam-lock { display: none; }

/* Final Exam slot — sits directly under the course list */
.sidebar-exam-slot {
  margin: 8px 6px 4px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.btn-flashcards { margin-bottom: 8px; }

/* Sidebar session right-click menu — "Skip to here" */
.lt-ctx-menu {
  position: fixed;
  z-index: 9500;
  min-width: 196px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  padding: 6px;
  animation: fadeSlideIn 0.12s ease;
}
.lt-ctx-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text3);
  padding: 5px 8px 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 240px;
}
.lt-ctx-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 9px;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  font-family: 'JetBrains Mono', sans-serif;
  transition: background 0.12s, color 0.12s;
}
.lt-ctx-item:hover { background: var(--teal-faint); }
.lt-ctx-item > i, .lt-ctx-item > svg { color: var(--teal); flex-shrink: 0; }
.lt-ctx-item-text { display: flex; flex-direction: column; }
.lt-ctx-item-label { font-size: 12.5px; font-weight: 600; color: var(--text); }
.lt-ctx-item-sub { font-size: 10.5px; color: var(--text3); margin-top: 1px; }
.lt-ctx-item:hover .lt-ctx-item-label { color: var(--teal); }

/* Sidebar overlay (mobile) */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 150;
  backdrop-filter: blur(2px);
}

/* ═══════════════════════════════════════════════════════════════════════════
   MAIN CONTENT WRAP
   ═══════════════════════════════════════════════════════════════════════════ */
.main-wrap {
  flex: 1;
  min-width: 0;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Top Header ─────────────────────────────────────────────────────────────── */
.top-header {
  height: var(--header-h);
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px 0 16px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: relative;
  z-index: 50;   /* above in-page sticky headers (e.g. glossary z:30) so header tooltips/dropdowns aren't clipped */
}

.icon-btn {
  background: none;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text2);
  padding: 6px 9px;
  font-size: 14px;
  line-height: 1;
  transition: all 0.15s;
}

.icon-btn:hover {
  background: var(--bg4);
  color: var(--text);
  border-color: var(--border3);
}

.menu-btn {
  font-size: 16px;
  flex-shrink: 0;
}

.header-info {
  flex: 1;
  min-width: 0;
}

.header-tag {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--course-accent, var(--teal));
  display: block;
  margin-bottom: 2px;
}

.header-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.step-pills {
  display: flex;
  gap: 4px;
}

.step-pill {
  height: 22px;
  padding: 0 9px;
  border-radius: 11px;
  font-size: 10px;
  font-weight: 600;
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  letter-spacing: 0.3px;
  transition: all 0.2s;
  cursor: default;
  color: var(--text3);
  background: transparent;
}

.step-pill--active {
  background: color-mix(in srgb, var(--course-accent, var(--teal)) 14%, transparent);
  border-color: var(--course-accent, var(--teal));
  color: var(--course-accent, var(--teal));
}

.step-pill--done {
  background: color-mix(in srgb, var(--course-accent, var(--teal)) 8%, transparent);
  border-color: color-mix(in srgb, var(--course-accent, var(--teal)) 30%, transparent);
  color: var(--course-accent, var(--teal));
}

.chapter-counter {
  font-size: 11px;
  font-weight: 600;
  color: var(--text3);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ── Global Progress Bar ────────────────────────────────────────────────────── */
.global-progress-track {
  height: var(--progress-h);
  background: var(--bg4);
  flex-shrink: 0;
}

.global-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--course-accent, var(--teal)), var(--course-accent, var(--teal2)));
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1), background 0.3s ease;
  width: 0%;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CONTENT AREA
   ═══════════════════════════════════════════════════════════════════════════ */
.content-area {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 24px 32px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  scrollbar-width: thin;
  scrollbar-color: var(--border3) transparent;
}

.content-area > * {
  width: 100%;
  max-width: 960px;
}

.content-area::-webkit-scrollbar { width: 5px; }
.content-area::-webkit-scrollbar-track { background: transparent; }
.content-area::-webkit-scrollbar-thumb {
  background: var(--border3);
  border-radius: 3px;
}

/* ── Content Cards ──────────────────────────────────────────────────────────── */
.content-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  margin-bottom: 18px;
  animation: fadeSlideIn 0.3s ease forwards;
}

.content-card--teal {
  border-color: rgba(0,212,212,0.2);
  background: linear-gradient(135deg, var(--bg3) 0%, rgba(0,212,212,0.03) 100%);
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.content-card-tag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--teal);
  margin-bottom: 8px;
}

.content-card-heading {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.4px;
  margin-bottom: 12px;
  line-height: 1.25;
}

.content-card-heading--lesson {
  font-size: 17px;
}

.content-card-body {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 14px;
}

.content-card-body strong {
  color: var(--text);
  font-weight: 600;
}

/* Bullet list */
.lesson-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.lesson-bullets li {
  position: relative;
  font-size: 13.5px;
  color: var(--text2);
  line-height: 1.55;
  padding: 0 0 0 18px;
}

.lesson-bullets li::before {
  content: "–";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--teal);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.55;
}

.lesson-bullets li strong {
  color: var(--text);
  font-weight: 600;
}

/* "Practice This Pattern" button on lesson chapters.
   Lives here (always loaded) — previously only in the simulator's lazily-injected
   styles, so it rendered unstyled until the simulator had been opened once. */
.chapter-practice-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text2);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 14px;
  font-family: 'JetBrains Mono', sans-serif;
  transition: all 0.15s;
  margin-top: 14px;
}
.chapter-practice-btn:hover {
  border-color: var(--course-accent, var(--teal));
  color: var(--course-accent, var(--teal));
  background: var(--teal-faint);
}
/* Muted "Beta" chip — signals the Practice CTA leads to the WIP Simulator,
   matching the caution-tape framing on the simulator view itself. */
.chapter-practice-beta {
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text3);
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 1px 5px;
  margin-left: 2px;
}

/* Key concept table */
.concept-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 12px;
}

.concept-table th {
  text-align: left;
  padding: 8px 12px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text3);
  border-bottom: 1px solid var(--border2);
}

.concept-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
  vertical-align: top;
}

.concept-table td:first-child {
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}

.concept-table tr:last-child td {
  border-bottom: none;
}

/* ── Chart Container ─────────────────────────────────────────────────────────── */
.chart-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: visible;
  margin-bottom: 18px;
  animation: fadeSlideIn 0.35s ease forwards;
  animation-delay: 0.05s;
  opacity: 0;
}

.chart-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--bg4);
}

.chart-card-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  letter-spacing: 0.2px;
}

.chart-card-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--teal-faint);
  border: 1px solid rgba(0,212,212,0.2);
  color: var(--teal);
  letter-spacing: 0.4px;
}

.chart-el {
  width: 100%;
  height: 320px;
}

.chart-el.chart-el--gallery {
  height: auto;
  min-height: 0;
}

.chart-el--tall {
  height: 380px;
}

/* ── Two-column intro layout ─────────────────────────────────────────────────── */
.intro-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
}

@media (max-width: 860px) {
  .intro-layout {
    grid-template-columns: 1fr;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   QUIZ COMPONENTS
   ═══════════════════════════════════════════════════════════════════════════ */
.quiz-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px 24px;
  margin-bottom: 18px;
  animation: fadeSlideIn 0.3s ease forwards;
}

.quiz-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--teal);
  margin-bottom: 8px;
}

.quiz-question {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.quiz-hint {
  font-size: 12.5px;
  color: var(--text3);
  margin-bottom: 20px;
  line-height: 1.5;
}

.answer-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.answer-grid--2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.answer-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border2);
  background: var(--bg4);
  color: var(--text);
  font-size: 13.5px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all 0.18s;
  line-height: 1.3;
  position: relative;
}

.answer-btn:hover:not(:disabled):not(.answer-btn--answered) {
  background: var(--bg5);
  border-color: var(--border3);
  transform: translateY(-1px);
}

.answer-btn:disabled {
  cursor: not-allowed;
}

/* Answer hover — uniform teal accent across every answer type so the colour
   never telegraphs whether a choice is bullish, bearish or neutral. */
.answer-btn--bullish:hover:not(:disabled):not(.answer-btn--answered),
.answer-btn--bearish:hover:not(:disabled):not(.answer-btn--answered),
.answer-btn--neutral:hover:not(:disabled):not(.answer-btn--answered) {
  border-color: var(--teal);
  background: var(--teal-faint);
  color: var(--teal);
  box-shadow: var(--glow-teal);
}

/* Answer result states */
.answer-btn--correct {
  background: rgba(0,212,212,0.12) !important;
  border-color: var(--teal) !important;
  color: var(--teal) !important;
  box-shadow: 0 0 0 3px rgba(0,212,212,0.15) !important;
  font-weight: 700;
}

.answer-btn--wrong {
  background: rgba(204,34,34,0.15) !important;
  border-color: var(--red) !important;
  color: var(--red) !important;
}

@keyframes answer-shake {
  0%   { transform: translateX(0); }
  15%  { transform: translateX(-7px); }
  35%  { transform: translateX(7px); }
  55%  { transform: translateX(-4px); }
  75%  { transform: translateX(4px); }
  90%  { transform: translateX(-2px); }
  100% { transform: translateX(0); }
}

.answer-btn--shake {
  animation: answer-shake 0.55s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

.answer-btn--missed {
  background: rgba(0,212,212,0.06) !important;
  border-color: rgba(0,212,212,0.35) !important;
  color: rgba(0,212,212,0.65) !important;
}

.answer-btn--dimmed {
  opacity: 0.35;
}

/* Explanation box */
.explanation-box {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: var(--radius);
  border-left: 3px solid transparent;
  font-size: 13.5px;
  line-height: 1.65;
  animation: fadeSlideIn 0.3s ease forwards;
}

.explanation-box--correct {
  background: rgba(0,200,120,0.06);
  border-color: var(--green);
}

.explanation-box--wrong {
  background: rgba(204,34,34,0.06);
  border-color: var(--red);
}

.explanation-verdict {
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 10px;
}

.explanation-box--correct .explanation-verdict { color: var(--green); }
.explanation-box--wrong  .explanation-verdict { color: var(--red); }

.explanation-body {
  color: var(--text2);
}

.explanation-body strong {
  color: var(--text);
  font-weight: 600;
}

.explanation-body ul {
  padding-left: 16px;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.explanation-body ul li {
  margin-bottom: 2px;
}

.explanation-rule {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--teal-faint);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0,212,212,0.15);
  font-size: 12.5px;
  color: var(--teal);
  font-weight: 600;
}
.explanation-rule svg { width: 14px; height: 14px; flex: 0 0 auto; margin-top: 1px; }

.explanation-box--correct .explanation-rule {
  background: rgba(0,200,120,0.08);
  border-color: rgba(0,200,120,0.2);
  color: var(--green);
}

/* ═══════════════════════════════════════════════════════════════════════════
   NAV FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */
.nav-footer {
  height: var(--footer-h);
  min-height: var(--footer-h);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 32px;            /* match .content-area horizontal padding */
  background: var(--bg2);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

/* Keep the prev/next buttons aligned to the page content band (.content-area > * max-width) */
.nav-footer-inner {
  width: 100%;
  max-width: 960px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border2);
  background: var(--bg4);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.18s;
  min-width: 110px;
}

.nav-btn:not(:disabled):hover {
  background: var(--bg5);
  border-color: var(--border3);
}

.nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.nav-prev {
  justify-content: center;
}

.nav-next {
  justify-content: center;
  background: var(--teal-dim);
  border-color: rgba(0,212,212,0.35);
  color: var(--teal);
}

.nav-next:not(:disabled):hover {
  background: var(--teal-glow);
  border-color: var(--teal);
  box-shadow: var(--glow-teal);
}

.nav-arrow {
  font-size: 15px;
  line-height: 1;
}

.step-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.step-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border3);
  transition: all 0.2s;
}

.step-dot--active {
  background: var(--teal);
  width: 18px;
  border-radius: 3px;
}

.step-dot--done {
  background: var(--teal3);
}

/* ═══════════════════════════════════════════════════════════════════════════
   WELCOME BACK MODAL
   ═══════════════════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal-box {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-top: 2px solid var(--modal-accent, var(--teal));
  border-radius: var(--radius-lg);
  padding: 32px 40px 32px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  animation: scaleIn 0.25s cubic-bezier(0.34,1.56,0.64,1);
  box-shadow: 0 24px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(0,212,212,0.06);
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}

.modal-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}

.modal-logo-mark {
  display: flex;
  color: var(--text);
  filter: drop-shadow(0 0 10px rgba(22,233,208,0.4));
}

.modal-brand-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text2);
  text-transform: uppercase;
}

.modal-divider {
  height: 1px;
  background: var(--border);
  margin: 0 0 24px;
}

.modal-box h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.4px;
}

.modal-sub {
  font-size: 13px;
  color: var(--text3);
  margin-bottom: 18px;
}

.modal-progress-info {
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--text2);
  line-height: 1.6;
}

.modal-progress-info strong {
  color: var(--modal-accent, var(--teal));
  font-weight: 700;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-actions .btn-primary {
  background: var(--modal-accent, var(--teal));
  box-shadow: 0 0 0 0 var(--modal-accent, var(--teal));
}

.modal-actions .btn-primary:hover {
  background: var(--modal-accent, var(--teal));
  filter: brightness(1.12);
  box-shadow: 0 4px 20px color-mix(in srgb, var(--modal-accent, var(--teal)) 35%, transparent);
}

.btn-primary {
  width: 100%;
  padding: 13px 24px;
  background: var(--teal);
  border: none;
  border-radius: var(--radius);
  color: #000;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s;
  letter-spacing: -0.1px;
}

.btn-primary:hover {
  background: var(--teal2);
  transform: translateY(-1px);
  box-shadow: var(--glow-teal);
}

.btn-ghost {
  width: 100%;
  padding: 11px 24px;
  background: transparent;
  border: 1.5px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text2);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}

.btn-ghost:hover {
  background: var(--bg4);
  border-color: var(--border3);
  color: var(--text);
}

/* ═══════════════════════════════════════════════════════════════════════════
   EXAM SCREEN
   ═══════════════════════════════════════════════════════════════════════════ */
.exam-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 8000;
  overflow-y: auto;
  padding: 0 16px 60px;
  scrollbar-width: thin;
  scrollbar-color: var(--border3) transparent;
}

.exam-inner {
  max-width: 700px;
  margin: 0 auto;
  padding-top: 40px;
}

.exam-header {
  text-align: center;
  margin-bottom: 32px;
}

.exam-logo {
  font-size: 13px;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.exam-logo-mark {
  display: inline-flex;
  align-items: center;
  color: var(--text);
}
.exam-logo-mark svg { width: 20px; height: 20px; display: block; }

.exam-title {
  font-size: 28px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.exam-subtitle {
  font-size: 14px;
  color: var(--text3);
  margin-bottom: 20px;
}

.exam-progress-wrap {
  max-width: 400px;
  margin: 0 auto;
}

.exam-progress-track {
  height: 5px;
  background: var(--bg4);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

.exam-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--teal2));
  border-radius: 3px;
  transition: width 0.4s ease;
  width: 0%;
}

.exam-q-counter {
  font-size: 12px;
  color: var(--text3);
  font-weight: 600;
}

.exam-body {
  animation: fadeSlideIn 0.3s ease;
}

.exam-q-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  margin-bottom: 16px;
}

.exam-q-num {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--teal);
  margin-bottom: 8px;
}

.exam-q-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 6px;
}

.exam-q-chapter {
  font-size: 11px;
  color: var(--text3);
  margin-bottom: 20px;
}

.exam-answers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.exam-answer-btn {
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border2);
  background: var(--bg4);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all 0.18s;
  display: flex;
  align-items: center;
  gap: 10px;
}

.exam-answer-btn:hover:not(:disabled):not(.exam-answer-btn--selected) {
  background: var(--bg5);
  border-color: var(--border3);
}

.exam-answer-btn:disabled { cursor: not-allowed; }

.exam-answer-btn--correct {
  background: rgba(0,212,212,0.12) !important;
  border-color: var(--teal) !important;
  color: var(--teal) !important;
  font-weight: 700;
}

.exam-answer-btn--wrong {
  background: rgba(204,34,34,0.1) !important;
  border-color: var(--red) !important;
  color: var(--red) !important;
}

.exam-answer-btn--missed {
  background: rgba(0,212,212,0.05) !important;
  border-color: rgba(0,212,212,0.3) !important;
  color: rgba(0,212,212,0.6) !important;
}

/* Neutral "chosen" state during the exam — correctness is withheld until scoring */
.exam-answer-btn--selected {
  background: var(--teal-dim) !important;
  border-color: var(--teal) !important;
  color: var(--teal) !important;
}

/* Exit-exam control (top-left of the exam screen) */
.exam-exit-btn {
  position: absolute;
  top: 18px;
  left: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text2);
  font-family: 'JetBrains Mono', sans-serif;
  font-size: 12px;
  font-weight: 600;
  padding: 7px 12px;
  cursor: pointer;
  transition: all 0.15s;
  z-index: 2;
}
.exam-exit-btn:hover { border-color: var(--teal); color: var(--teal); }

.exam-answer-letter {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
}

.exam-next-btn {
  width: 100%;
  margin-top: 16px;
  padding: 13px;
  background: var(--teal);
  border: none;
  border-radius: var(--radius);
  color: #000;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s;
  display: none;
}

.exam-next-btn.show {
  display: block;
  animation: fadeSlideIn 0.25s ease;
}

.exam-next-btn:hover {
  background: var(--teal2);
  box-shadow: var(--glow-teal);
}

/* Exam result */
.exam-result {
  text-align: center;
  padding: 40px 20px 60px;
  animation: fadeSlideIn 0.4s ease;
}

.exam-result-icon {
  font-size: 60px;
  margin-bottom: 16px;
}

.exam-result-score {
  font-size: 56px;
  font-weight: 900;
  color: var(--teal);
  letter-spacing: -2px;
  margin-bottom: 4px;
}

.exam-result-label {
  font-size: 16px;
  color: var(--text2);
  margin-bottom: 6px;
}

.exam-result-pass {
  font-size: 13px;
  color: var(--green);
  font-weight: 600;
  margin-bottom: 28px;
}

.exam-result-fail {
  font-size: 13px;
  color: var(--red);
  font-weight: 600;
  margin-bottom: 28px;
}

.exam-result-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 360px;
  margin: 0 auto;
}

.exam-weak-chapters {
  margin-top: 24px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  text-align: left;
  max-width: 480px;
  margin: 24px auto 0;
}

.exam-weak-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text3);
  margin-bottom: 10px;
}

.exam-weak-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.exam-weak-item {
  font-size: 13px;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 8px;
}

.exam-weak-item::before {
  content: "→";
  color: var(--red);
  font-weight: 700;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CERTIFICATE SCREEN
   ═══════════════════════════════════════════════════════════════════════════ */
.cert-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9000;
  overflow-y: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.cert-inner {
  max-width: 540px;
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 20px;
  padding: 48px 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  animation: scaleIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
  box-shadow: 0 32px 100px rgba(0,0,0,0.6);
}

.cert-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  font-size: 220px;
  opacity: 0.022;
  pointer-events: none;
  user-select: none;
}
.cert-watermark svg { width: 240px; height: 240px; color: var(--text); }

.cert-top-rule,
.cert-bottom-rule {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  margin: 0 auto 24px;
  width: 80%;
  opacity: 0.6;
}

.cert-bottom-rule { margin-top: 24px; margin-bottom: 20px; }

.cert-badge {
  font-size: 52px;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 20px rgba(200,150,12,0.5));
}
.cert-badge svg { width: 52px; height: 52px; color: #d4a017; }

.cert-presents {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text3);
  margin-bottom: 10px;
}

.cert-recipient {
  font-size: 26px;
  font-weight: 800;
  color: var(--teal);
  letter-spacing: -0.3px;
  margin-bottom: 10px;
}

/* Editable recipient name (stored locally — no account needed) */
.cert-name-input {
  display: block;
  width: 100%;
  max-width: 360px;
  margin: 0 auto 14px;
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--border2);
  color: var(--text);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 30px;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.3px;
  padding: 4px 6px 6px;
  transition: border-color 0.15s;
}
.cert-name-input::placeholder { color: var(--text3); font-weight: 500; }
.cert-name-input:focus { outline: none; border-bottom-color: var(--teal); }
@media print {
  .cert-name-input { border-bottom-color: transparent; color: #000; }
  .cert-name-input::placeholder { color: transparent; }
}

.cert-has-completed {
  font-size: 13px;
  color: var(--text3);
  margin-bottom: 14px;
}

.cert-course-name {
  font-size: 22px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.4px;
  margin-bottom: 4px;
}

.cert-course-sub {
  font-size: 13px;
  color: var(--text3);
  margin-bottom: 0;
}

.cert-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

.cert-modules-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 24px;
  text-align: left;
  max-width: 320px;
  margin: 0 auto 18px;
}

.cert-module {
  font-size: 12.5px;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 6px;
}

.cert-score-display {
  font-size: 14px;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 6px;
}

.cert-date-display {
  font-size: 12px;
  color: var(--text3);
  margin-bottom: 0;
}

.cert-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
  flex-wrap: wrap;
}

.cert-actions .btn-primary {
  width: auto;
  padding: 11px 24px;
}

.cert-actions .btn-ghost {
  width: auto;
  padding: 11px 24px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   TOAST
   ═══════════════════════════════════════════════════════════════════════════ */
.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: 20px;
  padding: 10px 20px;
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
  z-index: 9999;
  animation: toastIn 0.25s ease;
  white-space: nowrap;
  box-shadow: var(--shadow);
}
.toast svg { width: 15px; height: 15px; flex: 0 0 auto; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    z-index: 300;
    box-shadow: 4px 0 30px rgba(0,0,0,0.5);
  }

  .sidebar.sidebar--open {
    transform: translateX(0);
  }

  .sidebar-close-btn {
    display: flex;
  }

  .content-area {
    padding: 16px 16px 10px;
  }

  .top-header {
    padding: 0 14px 0 12px;
  }

  .header-title {
    font-size: 13px;
  }

  .chapter-counter { display: none; }

  .step-pills {
    display: none;
  }

  .intro-layout {
    grid-template-columns: 1fr;
  }

  .exam-answers {
    grid-template-columns: 1fr;
  }

  .cert-inner {
    padding: 32px 24px 28px;
  }

  .cert-modules-grid {
    grid-template-columns: 1fr;
  }

  .nav-footer {
    padding: 0 16px;        /* match mobile .content-area padding */
  }

  .nav-btn {
    min-width: 80px;
    padding: 10px 12px;
    font-size: 12.5px;
  }

  .nav-label {
    display: none;
  }

  /* ── Reclaim vertical space: shorter header & footer ──────────────────── */
  :root { --header-h: 52px; --footer-h: 54px; }

  /* ── Header: tighter so the icon row fits comfortably ─────────────────── */
  .top-header { gap: 8px; }
  .header-tag { font-size: 9px; letter-spacing: 0.5px; }
  .header-right { gap: 4px; }
  .icon-btn { padding: 6px 7px; }
  .header-discord { width: 30px; height: 30px; }

  /* ── Module banner ────────────────────────────────────────────────────── */
  .module-banner { padding: 9px 11px; gap: 10px; margin-bottom: 12px; }
  .module-banner-icon { width: 30px; height: 30px; }
  .module-banner-name { font-size: 13.5px; }
  .module-banner-tag { font-size: 10px; }

  /* ── Content cards: less padding, smaller type ────────────────────────── */
  .content-card { padding: 16px 16px; margin-bottom: 14px; }
  .content-card-heading { font-size: 17px; margin-bottom: 9px; }
  .content-card-heading--lesson { font-size: 15.5px; }
  .content-card-body { font-size: 13px; line-height: 1.6; margin-bottom: 11px; }
  .content-card-tag { font-size: 9.5px; margin-bottom: 6px; }
  .lesson-bullets { gap: 6px; }
  .lesson-bullets li { font-size: 12.5px; line-height: 1.5; padding-left: 16px; }
  .concept-table { font-size: 12px; }
  .concept-table th, .concept-table td { padding: 7px 9px; }
  .chapter-practice-btn { font-size: 11.5px; padding: 6px 12px; margin-top: 12px; }

  /* ── Charts: shorter, tighter header ──────────────────────────────────── */
  .chart-el { height: 230px; }
  .chart-el--tall { height: 270px; }
  .chart-card { margin-bottom: 14px; }
  .chart-card-header { padding: 9px 12px 8px; }
  .chart-card-title { font-size: 11px; }
  .chart-card-badge { font-size: 9px; padding: 2px 7px; }

  /* ── Quiz ─────────────────────────────────────────────────────────────── */
  .quiz-card { padding: 16px 16px 18px; margin-bottom: 14px; }
  .quiz-label { font-size: 9.5px; }
  .quiz-question { font-size: 14.5px; line-height: 1.35; }
  .quiz-hint { font-size: 11.5px; margin-bottom: 16px; line-height: 1.45; }
  .answer-grid--2col { grid-template-columns: 1fr; }
  .answer-btn { padding: 11px 13px; font-size: 12.5px; gap: 8px; }
  .explanation-box { padding: 13px 14px; font-size: 12.5px; line-height: 1.55; margin-top: 14px; }
  .explanation-verdict { font-size: 14px; margin-bottom: 8px; }
  .explanation-rule { font-size: 11.5px; padding: 9px 12px; margin-top: 10px; }

  /* ── Course-overview roadmap ──────────────────────────────────────────── */
  .roadmap-card { padding: 16px 16px 18px; }
  .roadmap-head { margin-bottom: 14px; gap: 10px; }
  .roadmap-head-ic { width: 32px; height: 32px; }
  .roadmap-title { font-size: 17px; }
  .roadmap-stop-label { font-size: 13px; }
  .roadmap-stop-desc { font-size: 12px; }

  /* ── Home hub ─────────────────────────────────────────────────────────── */
  .lt-home-wrap { gap: 18px; }
  .lt-home-hero-title { font-size: 22px; }
  .lt-home-hero-sub { font-size: 12px; }
  .lt-home-continue { padding: 14px 16px; }
  .lt-home-continue-title { font-size: 15px; }
  .lt-home-course-name { font-size: 13.5px; margin-bottom: 12px; }
  .lt-home-tool { padding: 15px 10px; font-size: 11.5px; }
  .lt-home-term-name { font-size: 18px; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   PRINT STYLES (Certificate)
   ═══════════════════════════════════════════════════════════════════════════ */
@media print {
  body * { visibility: hidden; }
  .cert-screen, .cert-screen * { visibility: visible; }
  .cert-screen {
    position: static;
    padding: 0;
  }
  .cert-inner {
    box-shadow: none;
    border: 1px solid #ccc;
    border-radius: 0;
    animation: none;
    max-width: 100%;
  }
  .cert-actions { display: none; }
}

/* ══════════════════════════════════════════════════════════════════════════
   GLOBAL GLOSSARY SEARCH (header)
   ══════════════════════════════════════════════════════════════════════════ */
.header-discord {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--discord-color, #fff);
  transition: all 0.15s;
}
.header-discord:hover {
  background: #5865F2;
  color: #fff;
  border-color: #5865F2;
}
.header-discord svg { width: 19px; height: auto; display: block; }

.header-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 1 300px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 0 10px;
  height: 34px;
}
.header-search:focus-within { border-color: var(--teal); }
.header-search > i { color: var(--text3); flex-shrink: 0; }
#lt-search-input {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-family: 'JetBrains Mono', sans-serif;
  font-size: 13px;
}
#lt-search-input::placeholder { color: var(--text3); }

.lt-search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  min-width: 320px;
  max-height: 60vh;
  overflow-y: auto;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(0,0,0,.5);
  z-index: 60;
  padding: 6px;
}
.lt-search-item {
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .12s;
}
.lt-search-item:hover, .lt-search-item.active { background: var(--bg4); }
.lt-search-item-term { font-size: 13px; font-weight: 700; color: var(--text); display: inline; }
.lt-search-item-cat {
  font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px;
  color: var(--teal); margin-left: 8px;
}
.lt-search-item-def {
  font-size: 11.5px; color: var(--text3); line-height: 1.5; margin-top: 3px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.lt-search-empty { padding: 14px 12px; font-size: 12px; color: var(--text3); text-align: center; }

@media (max-width: 760px) {
  .header-search { display: none; }
}

/* ══════════════════════════════════════════════════════════════════════════
   PER-MODULE THEMING — accent banner + accented tags/bullets per module
   ══════════════════════════════════════════════════════════════════════════ */
.module-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  padding: 10px 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--mod-accent, var(--teal));
  border-radius: var(--radius);
  animation: fadeSlideIn 0.3s ease;
}
.module-banner-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mod-accent, var(--teal));
  background: color-mix(in srgb, var(--mod-accent, #00d4d4) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--mod-accent, #00d4d4) 35%, transparent);
}
.module-banner-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text);
  line-height: 1.1;
}
.module-banner-tag {
  font-size: 11px;
  color: var(--text3);
  margin-top: 2px;
}

/* Accent the section tag, bullet markers and intro card to the module colour */
.module-themed .content-card-tag { color: var(--mod-accent, var(--teal)); }
.module-themed .lesson-bullets li::before { color: var(--mod-accent, var(--teal)); }
.module-themed .content-card--teal {
  border-color: color-mix(in srgb, var(--mod-accent, #00d4d4) 28%, transparent);
  background: linear-gradient(135deg, var(--bg3) 0%, color-mix(in srgb, var(--mod-accent, #00d4d4) 5%, transparent) 100%);
}

/* ══════════════════════════════════════════════════════════════════════════
   COURSE-OVERVIEW ROADMAP — replaces the chart on orientation / recap pages
   ══════════════════════════════════════════════════════════════════════════ */
.roadmap-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--mod-accent, var(--teal));
  border-radius: var(--radius-lg);
  padding: 20px 22px 22px;
  animation: fadeSlideIn 0.35s ease forwards;
}
.roadmap-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.roadmap-head-ic {
  width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--mod-accent, var(--teal));
  background: color-mix(in srgb, var(--mod-accent, #00d4d4) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--mod-accent, #00d4d4) 35%, transparent);
}
.roadmap-title {
  font-family: 'Barlow Condensed', sans-serif; font-size: 19px; font-weight: 800;
  letter-spacing: 0.3px; color: var(--text); line-height: 1.1;
}
.roadmap-sub { font-size: 11.5px; color: var(--text3); margin-top: 2px; }
.roadmap-path { list-style: none; display: flex; flex-direction: column; padding: 0; margin: 0; }
.roadmap-stop { display: flex; gap: 14px; position: relative; padding-bottom: 16px; }
.roadmap-stop:last-child { padding-bottom: 0; }
/* vertical connector threading the nodes together */
.roadmap-stop:not(:last-child)::before {
  content: ""; position: absolute; left: 13px; top: 27px; bottom: -1px; width: 2px;
  background: color-mix(in srgb, var(--mod-accent, #00d4d4) 28%, var(--border));
}
.roadmap-node {
  width: 27px; height: 27px; flex-shrink: 0; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; position: relative; z-index: 1;
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800; font-size: 13px;
  color: var(--mod-accent, var(--teal));
  background: color-mix(in srgb, var(--mod-accent, #00d4d4) 13%, var(--bg4));
  border: 1.5px solid color-mix(in srgb, var(--mod-accent, #00d4d4) 45%, transparent);
}
.roadmap-stop-main { min-width: 0; padding-top: 3px; }
.roadmap-stop-label { font-size: 14px; font-weight: 700; color: var(--text); line-height: 1.3; }
.roadmap-stop-desc { font-size: 12.5px; color: var(--text2); line-height: 1.5; margin-top: 3px; }

/* ── Live BTC ticker (compact, matches sidebar) ── */
.btc-ticker {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.btc-ticker-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: btcDotPulse 1.8s infinite;
  flex-shrink: 0;
}
@keyframes btcDotPulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
.btc-ticker-sym { font-size: 10px; font-weight: 700; color: var(--text); letter-spacing: 0.5px; flex-shrink: 0; }
.btc-ticker-price { font-size: 12px; font-weight: 800; color: var(--text); padding: 1px 4px; border-radius: 4px; white-space: nowrap; }
.btc-ticker-price.up, .btc-ticker-price.down { color: var(--text); }
.btc-ticker-price.tick-up { animation: btcTickUp 0.5s ease; }
.btc-ticker-price.tick-down { animation: btcTickDown 0.5s ease; }
@keyframes btcTickUp { 0% { background: rgba(0,200,120,0.4); } 100% { background: transparent; } }
@keyframes btcTickDown { 0% { background: rgba(204,34,34,0.4); } 100% { background: transparent; } }
.btc-ticker-chg { font-size: 10px; font-weight: 700; color: var(--text3); flex-shrink: 0; }
.btc-ticker-chg.up { color: #00c878; }
.btc-ticker-chg.down { color: #cc2222; }

/* ══════════════════════════════════════════════════════════════════════════
   SITE-WIDE FONT CHOICE (Settings → Display → Font)
   Default = JetBrains Mono (Terminal) · Inter (all loaded via Google Fonts)
   ══════════════════════════════════════════════════════════════════════════ */
html.font-inter,    html.font-inter *    { font-family: 'Inter', sans-serif !important; }

/* Font selector buttons in Settings */
.lt-font-opts { display: flex; gap: 6px; flex-wrap: wrap; }
.lt-font-btn {
  padding: 6px 13px; border: 1px solid var(--border2); background: var(--bg4);
  color: var(--text2); font-size: 12px; font-weight: 600; border-radius: 8px;
  cursor: pointer; transition: all 0.15s;
}
.lt-font-btn:hover { border-color: var(--teal); color: var(--teal); }
.lt-font-btn.active { background: var(--teal-dim); border-color: var(--teal); color: var(--teal); }

/* ── Chart header: video button + controls group ── */
.chart-card-header-right { display: flex; align-items: center; gap: 10px; }
.chart-video-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: transparent; border: 1px solid var(--border2);
  color: var(--text2); font-family: 'JetBrains Mono', sans-serif;
  font-size: 11px; font-weight: 600; padding: 4px 10px;
  border-radius: 10px; cursor: pointer; transition: all 0.15s; white-space: nowrap;
}
.chart-video-btn:hover { border-color: #FF0000; color: var(--text); }
.chart-video-btn.active { border-color: #FF0000; color: #ff5252; }

/* Textbook ⇄ real-historical-example toggle on lesson charts */
.chart-example-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  background: transparent; border: 1px solid var(--border2);
  color: var(--text2); font-family: 'JetBrains Mono', sans-serif;
  font-size: 11px; font-weight: 600; padding: 4px 10px;
  border-radius: 10px; cursor: pointer; transition: all 0.15s; white-space: nowrap;
}
.chart-example-toggle:hover { border-color: var(--teal); color: var(--text); }
.chart-example-toggle:disabled { opacity: 0.6; cursor: progress; }
.chart-example-toggle--active { border-color: var(--teal); color: var(--teal); background: var(--teal-faint); }
.chart-example-caption {
  display: flex; align-items: flex-start; gap: 13px;
  margin-top: 10px; padding: 13px 15px;
  background: linear-gradient(180deg, var(--teal-faint), transparent), var(--bg2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--teal); border-radius: var(--radius);
}
/* left icon chip — clearly flags this as historical data */
.chart-example-caption .cec-icon {
  flex-shrink: 0; width: 34px; height: 34px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  background: var(--teal-dim); border: 1px solid rgba(0, 212, 212, 0.28);
  color: var(--teal); box-shadow: 0 0 14px rgba(0, 212, 212, 0.12);
}
.chart-example-caption .cec-body { flex: 1; min-width: 0; }
.chart-example-caption .cec-head {
  display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin-bottom: 6px;
}
/* "Historical" pill — distinguishes it from the textbook illustration */
.chart-example-caption .cec-tag {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 800;
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  color: #04201f; background: var(--teal);
  padding: 2px 8px; border-radius: 100px;
}
.chart-example-caption .cec-meta {
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  font-size: 13px; letter-spacing: 0.4px; text-transform: uppercase; color: var(--teal);
}
.chart-example-caption p { font-size: 13px; line-height: 1.65; color: var(--text2); margin: 0; }
.intro-video-wrap { width: 100%; }
.intro-video-frame-wrap { width: 100%; padding: 8px; }
.intro-video-frame-wrap iframe { width: 100%; display: block; border-radius: var(--radius); }

/* ══════════════════════════════════════════════════════════════════════════
   HEADER ICON TOOLTIPS — shown on hover above each icon button
   Pure CSS: no JS. Add data-tip="Label" to any .icon-btn.
   ══════════════════════════════════════════════════════════════════════════ */
.icon-btn[data-tip] { position: relative; }

.icon-btn[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  white-space: nowrap;
  background: var(--bg4);
  color: var(--text);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  font-family: 'JetBrains Mono', sans-serif;
  font-size: 11px;
  font-weight: 600;
  padding: 5px 10px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 200;
  box-shadow: var(--shadow-sm);
}

.icon-btn[data-tip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ══════════════════════════════════════════════════════════════════════════
   SIDEBAR STEP INDICATORS — Introduction / Lesson / Quiz under the active chapter
   (moved here from the top-right header so the header is free for global actions)
   ══════════════════════════════════════════════════════════════════════════ */
.chapter-steps {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin: 1px 0 8px;
  padding-left: 30px;
  animation: fadeSlideIn 0.25s ease;
}
.sb-step {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-family: 'JetBrains Mono', sans-serif;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text3);
  text-align: left;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.sb-step::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  flex-shrink: 0;
  transition: background 0.15s, border-color 0.15s;
}
.sb-step:hover { color: var(--text2); background: var(--teal-faint); }
.sb-step--done { color: color-mix(in srgb, var(--course-accent, var(--teal)) 70%, var(--text2)); }
.sb-step--done::before {
  background: var(--course-accent, var(--teal));
  border-color: var(--course-accent, var(--teal));
}
.sb-step--active {
  color: var(--course-accent, var(--teal));
  background: color-mix(in srgb, var(--course-accent, var(--teal)) 13%, transparent);
  font-weight: 600;
}
.sb-step--active::before {
  background: var(--course-accent, var(--teal));
  border-color: var(--course-accent, var(--teal));
}

/* ══════════════════════════════════════════════════════════════════════════
   CHART / VIDEO SEGMENTED TABS — browser-tab-style switch in the chart header
   ══════════════════════════════════════════════════════════════════════════ */
.chart-view-tabs {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 2px;
}
.cvt-tab {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text2);
  font-family: 'JetBrains Mono', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
  line-height: 1;
  padding: 5px 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}
.cvt-tab svg { display: block; flex-shrink: 0; }
.cvt-tab:hover:not(.cvt-tab--active) { color: var(--text); }
.cvt-tab--active {
  background: var(--bg5);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0,0,0,0.45);
}
.cvt-tab--video.cvt-tab--active { color: #ff5252; }

/* ══════════════════════════════════════════════════════════════════════════
   SIDEBAR HOME BUTTON — static, below the logo / above the courses.
   Lives outside #chapter-list so it never scrolls with the chapter list.
   Styled as a clean nav row (matches the course-accordion headers) rather than
   a heavy boxed button.
   ══════════════════════════════════════════════════════════════════════════ */
.sidebar-home-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 16px;
  background: transparent;
  border: none;
  border-left: 3px solid transparent;
  color: var(--text2);
  font-family: 'JetBrains Mono', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2px;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  flex-shrink: 0;            /* never scrolls with the chapter list */
}
.sidebar-home-btn:hover { background: var(--bg3); color: var(--text); }
.sidebar-home-btn--active {
  background: var(--teal-dim);
  color: var(--teal);
  border-left-color: var(--teal);
}

/* ══════════════════════════════════════════════════════════════════════════
   HOME HUB — in-app learning hub (state.view === 'home')
   ══════════════════════════════════════════════════════════════════════════ */
/* Faint candle-grid backdrop (mirrors the landing page's body::before) — applied
   to the content area only while the Home hub is showing. */
.content-area--home {
  background:
    radial-gradient(900px 480px at 78% -8%, rgba(0,212,212,0.10), transparent 60%),
    radial-gradient(760px 520px at 0% 12%, rgba(168,85,247,0.06), transparent 55%),
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: auto, auto, 44px 44px, 44px 44px;
}
/* Light mode: dark grid lines + softer, cooler glows so the texture reads on white. */
html.theme-light .content-area--home {
  background:
    radial-gradient(900px 480px at 78% -8%, rgba(13,148,136,0.07), transparent 60%),
    radial-gradient(760px 520px at 0% 12%, rgba(124,58,237,0.05), transparent 55%),
    linear-gradient(rgba(15,23,42,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,0.035) 1px, transparent 1px);
  background-size: auto, auto, 44px 44px, 44px 44px;
}

.lt-home-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding-bottom: 24px;
  animation: fadeSlideIn 0.3s ease forwards;
}

/* Hero — greeting + overall progress, compact single band */
.lt-home-hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.lt-home-hero-text { min-width: 0; }
.lt-home-hero-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 27px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--text);
  line-height: 1.05;
  margin-bottom: 3px;
}
.lt-home-hero-sub {
  font-size: 12.5px;
  color: var(--text2);
}
/* Overall progress — restrained linear readout (right-aligned in the hero) */
.lt-home-overall {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 7px;
  flex-shrink: 0;
  min-width: 220px;
}
.lt-home-overall-top { display: flex; align-items: baseline; gap: 9px; }
.lt-home-overall-pct {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.lt-home-overall-meta { font-size: 11.5px; color: var(--text3); line-height: 1.5; }
.lt-home-overall-meta strong { color: var(--text2); font-weight: 700; }
.lt-home-overall-track {
  width: 220px;
  max-width: 100%;
  height: 3px;
  background: var(--bg4);
  border-radius: 2px;
  overflow: hidden;
}
.lt-home-overall-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 2px;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
}

/* Term of the Day card */
.lt-home-term {
  display: flex;
  flex-direction: column;
  gap: 9px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 2px solid var(--teal);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.lt-home-term-head { display: flex; align-items: baseline; gap: 11px; flex-wrap: wrap; }
.lt-home-term-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.2px;
  color: var(--text);
  line-height: 1;
}
.lt-home-term-cat {
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text3);
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: 100px;
  padding: 2px 9px;
}
.lt-home-term-def { font-size: 13px; line-height: 1.6; color: var(--text2); }
.lt-home-term-link {
  align-self: flex-start;
  background: none;
  border: none;
  color: var(--teal);
  font-family: 'JetBrains Mono', sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
}
.lt-home-term-link:hover { text-decoration: underline; }

/* Continue card */
.lt-home-continue {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 2px solid var(--teal);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: border-color 0.3s ease;
}
/* Left group: mascot avatar + the continue text, kept together so the Resume
   button still sits at the far right via the card's space-between. */
.lt-home-continue-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.lt-home-continue-avatar {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lt-home-continue-avatar img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  display: block;
  transition: transform 0.3s ease;
}
.lt-home-continue-info { min-width: 0; }
.lt-home-continue-eyebrow {
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text3);
  margin-bottom: 6px;
  transition: color 0.3s ease;
}
.lt-home-continue-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lt-home-continue-meta { font-size: 11.5px; color: var(--text3); margin-top: 3px; }
.lt-home-continue .btn-primary { width: auto; flex-shrink: 0; padding: 10px 20px; font-size: 13px; transition: opacity 0.26s ease, transform 0.26s ease; }

/* Course-preview (peek) state — set on the Continue card while hovering a course
   card. Accent border + eyebrow, a popped/glowing avatar, and the Resume button
   fading away all animate via the transitions defined above. The accent morphs
   smoothly as you move between cards (var(--peek-accent) feeds border-color etc.). */
.lt-home-continue--peek { border-left-color: var(--peek-accent, var(--teal)); }
.lt-home-continue--peek .lt-home-continue-eyebrow { color: var(--peek-accent, var(--teal)); }
.lt-home-continue--peek .lt-home-continue-avatar img {
  transform: scale(1.08);
}
.lt-home-continue--peek .btn-primary {
  opacity: 0;
  transform: translateX(12px);
  pointer-events: none;
}

/* Section block — label + content */
.lt-home-section { display: flex; flex-direction: column; gap: 11px; }
.lt-home-section-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text3);
  padding-left: 2px;
}

/* Course progress cards — bottom-aligned progress for uniform rows */
.lt-home-courses {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.lt-home-course-card {
  position: relative;
  display: flex;
  flex-direction: column;
  text-align: left;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 15px 16px 16px;
  cursor: pointer;
  transition: border-color 0.15s;
}
.lt-home-course-share {
  position: absolute;
  top: 9px;
  right: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  color: var(--text3);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
.lt-home-course-share:hover { color: var(--caccent, var(--teal)); background: var(--bg4); }
.lt-home-course-card:hover {
  border-color: var(--caccent, var(--border3));
}
.lt-home-course-label {
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--caccent, var(--text3));   /* "Course N" always in its accent */
  margin-bottom: 5px;
}
.lt-home-course-name {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
  line-height: 1.3;
  margin-bottom: 16px;
}
.lt-home-course-track {
  height: 5px;
  background: var(--bg);
  border-radius: 3px;
  overflow: hidden;
  margin-top: auto;            /* push progress + stats to the card bottom */
  margin-bottom: 8px;
}
.lt-home-course-fill { height: 100%; border-radius: 3px; background: var(--caccent, var(--teal)); transition: width 0.6s cubic-bezier(0.4,0,0.2,1); }
.lt-home-course-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}
.lt-home-course-stat-pct {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.lt-home-course-stat-count { font-size: 11px; color: var(--text3); }
.lt-home-course-done {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 700;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Tools — compact icon tiles */
.lt-home-tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
}
.lt-home-tool {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 12px;
  color: var(--text2);
  font-family: 'JetBrains Mono', sans-serif;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.lt-home-tool:hover {
  border-color: var(--border3);
  color: var(--text);
}
.lt-home-tool-ic { color: var(--text3); display: flex; transition: color 0.15s; }
.lt-home-tool:hover .lt-home-tool-ic { color: var(--teal); }

/* Discord highlight banner */
.lt-home-discord {
  display: flex;
  align-items: center;
  gap: 13px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 3px solid #5865F2;
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  text-decoration: none;
  transition: border-color 0.15s;
}
.lt-home-discord:hover { border-color: #5865F2; }
.lt-home-discord-ic {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #5865F2;
}
.lt-home-discord-ic svg { width: 24px; height: auto; display: block; }
.lt-home-discord-info { flex: 1; min-width: 0; }
.lt-home-discord-title { font-size: 13.5px; font-weight: 700; color: var(--text); }
.lt-home-discord-members { display: inline-flex; align-items: center; gap: 5px; font-size: 10px; font-weight: 700; color: #9aa6ff; background: rgba(88,101,242,0.14); border: 1px solid rgba(88,101,242,0.32); padding: 1px 8px; border-radius: 100px; margin-left: 7px; vertical-align: middle; letter-spacing: 0.3px; }
.lt-home-discord-dot { width: 5px; height: 5px; border-radius: 50%; background: #3ba55d; box-shadow: 0 0 5px #3ba55d; flex-shrink: 0; }
.lt-home-discord-sub { font-size: 11.5px; color: var(--text3); margin-top: 2px; }
.lt-home-discord-cta {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: #5865F2;
  border-radius: var(--radius);
  padding: 8px 15px;
  transition: filter 0.15s;
}
.lt-home-discord:hover .lt-home-discord-cta { filter: brightness(1.1); }

/* WIP corner badge on a home tool tile (e.g. the Simulator while in development) */
.lt-home-tool { position: relative; }
.lt-home-tool-wip {
  position: absolute;
  top: 7px;
  right: 7px;
  font-family: 'JetBrains Mono', sans-serif;
  font-weight: 700;
  font-size: 8px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text3);
  background: var(--bg4);
  border: 1px solid var(--border2);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
}

/* ══════════════════════════════════════════════════════════════════════════
   RISK CALLOUT — honest "real money, real risk" gate on leverage/derivatives lessons
   ══════════════════════════════════════════════════════════════════════════ */
.risk-callout {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  padding: 13px 15px;
  background: linear-gradient(180deg, rgba(255,159,26,0.10), rgba(255,159,26,0.03));
  border: 1px solid rgba(255,159,26,0.32);
  border-left: 3px solid #ff9f1a;
  border-radius: var(--radius);
  animation: fadeSlideIn 0.3s ease;
}
.risk-callout-ic {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ff9f1a;
  background: rgba(255,159,26,0.12);
  border: 1px solid rgba(255,159,26,0.3);
}
.risk-callout-body {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text2);
}
.risk-callout-body strong { color: #ffc46b; font-weight: 700; }

/* Course-positioning note (e.g. Course 4 = advanced/optional). Info-tone, teal. */
.course-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  padding: 13px 15px;
  background: linear-gradient(180deg, rgba(0,212,212,0.08), rgba(0,212,212,0.02));
  border: 1px solid rgba(0,212,212,0.28);
  border-left: 3px solid var(--teal);
  border-radius: var(--radius);
  animation: fadeSlideIn 0.3s ease;
}
.course-note-ic {
  flex-shrink: 0; width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--teal); background: var(--teal-dim); border: 1px solid rgba(0,212,212,0.3);
}
.course-note-body { font-size: 12.5px; line-height: 1.6; color: var(--text2); }
.course-note-body strong { color: var(--text); font-weight: 700; }

/* "Advanced" badges marking Course 4 as an optional deep-end track — muted/neutral. */
.lt-home-course-adv,
.sb-adv {
  display: inline-block;
  margin-left: 6px;
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text3);
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
  vertical-align: middle;
}
.sb-adv { font-size: 8px; padding: 0 5px; }

/* ══════════════════════════════════════════════════════════════════════════
   CAUTION TAPE — black/yellow "work in progress" banner (e.g. the Simulator)
   ══════════════════════════════════════════════════════════════════════════ */
.caution-tape {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 9px;
  margin-bottom: 16px;
  border-radius: var(--radius);
  overflow: hidden;
  background: repeating-linear-gradient(45deg, #f5c518 0 20px, #141414 20px 40px);
}
.caution-tape span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: #141414;
  color: #f5c518;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 4px;
  border: 1px solid rgba(245, 197, 24, 0.45);
}

@media (max-width: 600px) {
  .lt-home-courses { grid-template-columns: 1fr 1fr; }
  .lt-home-continue { flex-direction: column; align-items: stretch; }
  .lt-home-continue .btn-primary { width: 100%; }
  .lt-home-discord-sub { display: none; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   LAPTOP RESPONSIVE  (1024 – 1400px)
   Must come after all base rules so these overrides win the cascade.
   ═══════════════════════════════════════════════════════════════════════════ */

/* Laptop L: shrink sidebar, tighten header, hide BTC % change.
   Also dial back content sizing a touch so cards/charts aren't oversized.
   min-width:769 so these laptop sizes do NOT override the mobile block below
   768px (both are max-width queries; without this floor the later laptop rules
   win at phone widths and clobber the mobile chart/heading/padding reductions). */
@media (min-width: 769px) and (max-width: 1400px) {
  :root { --sidebar-w: 230px; }
  .top-header { gap: 8px; padding: 0 14px 0 12px; }
  .header-search { flex: 0 1 220px; }
  .btc-ticker-chg { display: none; }

  .content-area { padding: 20px 26px 14px; }
  .content-card { padding: 20px 22px; }
  .content-card-heading { font-size: 18.5px; }
  .content-card-body { font-size: 13.5px; }
  .quiz-card { padding: 20px 22px 22px; }
  .quiz-question { font-size: 15px; }
  .chart-el { height: 300px; }
  .chart-el--tall { height: 350px; }
}

/* Laptop M: drop labeled step-pills (dots remain), hide BTC symbol text */
@media (max-width: 1150px) {
  :root { --sidebar-w: 210px; }
  .step-pills { display: none; }
  .header-search { flex: 0 1 180px; }
  .btc-ticker-sym { display: none; }
}

/* Laptop S / large tablet: remove BTC ticker entirely */
@media (max-width: 1024px) {
  :root { --sidebar-w: 200px; }
  .btc-ticker { display: none; }
  .header-search { flex: 0 1 160px; }
}