/* ============================================================
   HSCScience — Junior Maths · Acrylic Sunset
   Years 7–10. Editorial, gamified, hard-shadow cards.
   Dusty rose · slate · plum · muted gold · cream.
   Replaces lesson.css for junior maths lessons.
   ============================================================ */

/* ── Tokens ── */
:root {
  --adv-bg: #f9efe1;
  --adv-bg-deeper: #f4e2cb;
  --adv-panel: #ffffff;
  --adv-soft: #f4e2cb;
  --adv-rule: #e8d4ba;
  --adv-rule-soft: #f1e0c5;

  --adv-ink: #2d3142;
  --adv-ink-soft: #5b5d75;
  --adv-muted: #8a8aa3;

  --adv-rose: #c47b8a;
  --adv-rose-deep: #9c5c6e;
  --adv-rose-soft: #f4d8de;
  --adv-coral: #e89b8b;
  --adv-coral-deep: #c47165;
  --adv-coral-soft: #fbe1d8;
  --adv-plum: #6d5b8a;
  --adv-plum-deep: #4e4068;
  --adv-plum-soft: #e3dbef;
  --adv-gold: #d6a85f;
  --adv-gold-deep: #a87f3f;
  --adv-gold-soft: #f5e4c3;
  --adv-cream: #faf0d7;
  --adv-cream-deep: #ecd9a2;

  --adv-green: #6b9b7c;
  --adv-green-soft: #d8e9dc;
  --adv-red: #c4646b;
  --adv-red-soft: #f5d8db;

  --adv-display: 'Outfit', system-ui, -apple-system, sans-serif;
  --adv-body: 'DM Sans', system-ui, -apple-system, sans-serif;
  --adv-mono: 'DM Mono', 'JetBrains Mono', monospace;

  --adv-r-sm: 10px;
  --adv-r: 14px;
  --adv-r-lg: 18px;
  --adv-r-xl: 22px;

  /* Signature hard-shadow card depth */
  --adv-shadow: 0 4px 0 var(--adv-rule);
  --adv-shadow-tight: 0 3px 0 var(--adv-rule);
  --adv-shadow-soft: 0 2px 14px rgba(45,49,66,0.06);
}

/* ── Reset / base ── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--adv-bg);
  color: var(--adv-ink);
  font-family: var(--adv-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5 {
  font-family: var(--adv-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--adv-ink);
  margin: 0;
  line-height: 1.18;
}
p { margin: 0 0 12px; }
a { color: var(--adv-plum); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .adv-mono { font-family: var(--adv-mono); }
strong { color: var(--adv-ink); }

/* ── Icon helper ── */
.adv-icon { width: 1em; height: 1em; display: inline-block; vertical-align: -0.15em; stroke: currentColor; fill: none; flex-shrink: 0; }
.adv-icon-lg { width: 22px; height: 22px; }
.adv-icon-md { width: 18px; height: 18px; }
.adv-icon-sm { width: 14px; height: 14px; }

/* ── Skip link / progress bar ── */
.adv-skip { position: fixed; top: -48px; left: 0; background: var(--adv-ink); color: #fff; padding: 10px 18px; z-index: 100; transition: top 0.2s; border-radius: 0 0 var(--adv-r) 0; }
.adv-skip:focus { top: 0; }
.adv-progress { position: fixed; top: 0; left: 0; right: 0; height: 4px; background: rgba(45,49,66,0.06); z-index: 50; }
.adv-progress-fill { height: 100%; background: linear-gradient(90deg, var(--adv-rose), var(--adv-coral), var(--adv-gold)); width: 0%; transition: width 0.15s ease; }

/* ── Page shell ── */
.adv-shell { max-width: 1180px; margin: 0 auto; }

/* ── Top bar ── */
.adv-topbar {
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--adv-panel);
  border-bottom: 1.5px solid var(--adv-rule);
  flex-wrap: wrap;
}
.adv-brand { font-family: var(--adv-display); font-size: 18px; font-weight: 800; color: var(--adv-ink); letter-spacing: -0.02em; display: flex; align-items: center; gap: 8px; }
.adv-brand-logo { width: 28px; height: 28px; background: linear-gradient(135deg, var(--adv-rose), var(--adv-plum)); border-radius: 8px; display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 14px; font-family: var(--adv-display); }
.adv-topbar-spacer { flex: 1; }
.adv-pill { display: inline-flex; align-items: center; gap: 6px; padding: 7px 13px; border-radius: 99px; font-weight: 700; font-size: 13px; line-height: 1; font-family: var(--adv-body); }
.adv-pill .adv-icon { width: 14px; height: 14px; }
.adv-pill-streak { background: var(--adv-coral-soft); color: var(--adv-coral-deep); }
.adv-pill-coins { background: var(--adv-gold-soft); color: var(--adv-gold-deep); }
.adv-pill-xp { background: var(--adv-rose-soft); color: var(--adv-rose-deep); }
.adv-pill-level { background: var(--adv-plum-soft); color: var(--adv-plum-deep); }
.adv-avatar { width: 36px; height: 36px; border-radius: 99px; background: var(--adv-ink); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 13px; flex-shrink: 0; font-family: var(--adv-display); }

/* ── Hero (Acrylic Sunset gradient) ── */
.adv-hero {
  margin: 20px;
  border-radius: var(--adv-r-xl);
  padding: 32px 36px;
  background: linear-gradient(135deg, #6d5b8a 0%, #c47b8a 55%, #e89b8b 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(109,91,138,0.18);
}
.adv-hero-bg { position: absolute; inset: 0; pointer-events: none; opacity: 0.85; }
.adv-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 28px;
  align-items: center;
}
.adv-hero-title h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  color: #fff;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.adv-hero-sub { font-size: 16px; opacity: 0.92; margin: 0; max-width: 540px; line-height: 1.55; color: #fff; }
.adv-hero-badges { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.adv-hero-badge {
  padding: 5px 11px;
  background: rgba(255,255,255,0.18);
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.adv-hero-badge .adv-icon { width: 12px; height: 12px; }
.adv-hero-badge.gold { background: var(--adv-gold); color: #3d2700; font-weight: 700; }

/* Hero illustration (right column) */
.adv-hero-art { display: flex; justify-content: center; align-items: center; }
.adv-hero-art svg { width: 100%; max-width: 220px; height: auto; }

/* Hero progress ring (overlays the art / bottom row) */
.adv-hero-ring-row { margin-top: 22px; display: flex; justify-content: space-between; gap: 20px; align-items: center; position: relative; z-index: 1; flex-wrap: wrap; }
.adv-ring { position: relative; width: 76px; height: 76px; flex-shrink: 0; }
.adv-ring svg { transform: rotate(-90deg); width: 100%; height: 100%; }
.adv-ring-text { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; color: #fff; }
.adv-ring-text strong { display: block; font-family: var(--adv-display); font-size: 17px; font-weight: 800; }
.adv-ring-text small { display: block; font-size: 9px; letter-spacing: 1.2px; opacity: 0.85; margin-top: 1px; }

/* Hero hook strip */
.adv-hook {
  flex: 1;
  padding: 14px 16px;
  background: rgba(255,255,255,0.16);
  border-radius: var(--adv-r);
  display: flex;
  align-items: center;
  gap: 14px;
}
.adv-hook-icon { width: 36px; height: 36px; background: rgba(255,255,255,0.22); border-radius: 10px; display: grid; place-items: center; flex-shrink: 0; color: var(--adv-gold-soft); }
.adv-hook-icon .adv-icon { width: 20px; height: 20px; }
.adv-hook-body { font-size: 13.5px; flex: 1; line-height: 1.5; color: #fff; }
.adv-hook-body strong { color: var(--adv-cream); font-weight: 700; }
.adv-hook-btn {
  padding: 9px 16px;
  background: #fff;
  color: var(--adv-plum-deep);
  border: none;
  border-radius: var(--adv-r-sm);
  font-family: var(--adv-display);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.adv-hook-btn:hover { background: var(--adv-cream); }
.adv-hook-btn[disabled] { opacity: 0.7; cursor: default; }

/* ── Tab nav ── */
.adv-tabs { padding: 4px 20px 0; display: flex; gap: 10px; flex-wrap: wrap; }
.adv-tab {
  flex: 1;
  min-width: 180px;
  padding: 14px 18px;
  border-radius: var(--adv-r-lg);
  background: transparent;
  border: 2px solid transparent;
  cursor: pointer;
  text-align: left;
  font-family: var(--adv-body);
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
}
.adv-tab-icon-wrap { width: 34px; height: 34px; border-radius: 10px; background: var(--adv-soft); display: grid; place-items: center; flex-shrink: 0; color: var(--adv-rose-deep); }
.adv-tab-icon-wrap .adv-icon { width: 18px; height: 18px; }
.adv-tab-label { font-family: var(--adv-display); font-size: 16px; font-weight: 700; color: var(--adv-ink-soft); display: block; }
.adv-tab-count { font-size: 12px; color: var(--adv-muted); font-weight: 500; display: block; margin-top: 1px; }
.adv-tab.active {
  background: var(--adv-panel);
  border-color: var(--adv-rule);
  border-bottom: 4px solid var(--adv-rose);
  box-shadow: var(--adv-shadow);
  transform: translateY(-2px);
}
.adv-tab.active .adv-tab-label { color: var(--adv-ink); }
.adv-tab.active .adv-tab-icon-wrap { background: var(--adv-rose-soft); color: var(--adv-rose-deep); }

/* ── Phase containers ── */
.adv-phase { display: none; }
.adv-phase.active { display: block; }

/* ── Section label divider ── */
.adv-section-label {
  margin: 24px 20px 8px;
  font-family: var(--adv-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--adv-plum);
  display: flex;
  align-items: center;
  gap: 12px;
}
.adv-section-label::before, .adv-section-label::after { content: ''; flex: 1; height: 1.5px; background: var(--adv-rule); }
.adv-section-label::before { max-width: 24px; }

/* ── Concept card ── */
.adv-card {
  margin: 14px 20px;
  padding: 24px 28px;
  background: var(--adv-panel);
  border-radius: var(--adv-r-lg);
  border: 1.5px solid var(--adv-rule);
  box-shadow: var(--adv-shadow);
}
.adv-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.adv-card-num {
  width: 34px;
  height: 34px;
  background: var(--adv-rose);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 16px;
  color: #fff;
  font-family: var(--adv-display);
  font-weight: 800;
  flex-shrink: 0;
}
.adv-card-title { font-family: var(--adv-display); font-size: 21px; font-weight: 700; color: var(--adv-ink); letter-spacing: -0.01em; flex: 1; line-height: 1.2; }
.adv-xp-tag { font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 99px; flex-shrink: 0; display: inline-flex; align-items: center; gap: 4px; font-family: var(--adv-body); }
.adv-xp-tag .adv-icon { width: 11px; height: 11px; }
.adv-xp-tag.rose { color: var(--adv-rose-deep); background: var(--adv-rose-soft); }
.adv-xp-tag.gold { color: var(--adv-gold-deep); background: var(--adv-gold-soft); }
.adv-xp-tag.plum { color: var(--adv-plum-deep); background: var(--adv-plum-soft); }

/* Click-to-claim state for pills containing "+N XP" labels.
   Marked by setupXpClaims() in junior-adventure.js. */
.adv-xp-tag-claimable {
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  border: 1.5px solid transparent;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}
.adv-xp-tag-claimable:hover {
  transform: translateY(-1px);
  border-color: currentColor;
  box-shadow: 0 4px 10px -6px rgba(0,0,0,0.25);
}
.adv-xp-tag-claimable:focus-visible {
  outline: 2px solid var(--adv-gold);
  outline-offset: 2px;
}
.adv-xp-tag-claimable.is-claimed {
  cursor: default;
  background: var(--adv-green-soft);
  color: var(--adv-green);
  border-color: var(--adv-green);
  transform: none;
  box-shadow: none;
}
.adv-xp-tag-claimable.is-claimed:hover { transform: none; box-shadow: none; }

.adv-card p { font-size: 15px; color: var(--adv-ink-soft); line-height: 1.65; margin: 0 0 12px; }
.adv-card p:last-child { margin-bottom: 0; }
.adv-card p strong { color: var(--adv-ink); }
.adv-card ul, .adv-card ol { padding-left: 22px; margin: 8px 0 14px; }
.adv-card li { font-size: 15px; color: var(--adv-ink-soft); line-height: 1.65; margin-bottom: 4px; }
.adv-card h3 { font-size: 16px; margin: 18px 0 8px; color: var(--adv-ink); font-weight: 700; }
.mark-gold { background: var(--adv-gold-soft); padding: 0 4px; border-radius: 4px; color: var(--adv-ink); }
.mark-rose { background: var(--adv-rose-soft); padding: 0 4px; border-radius: 4px; color: var(--adv-ink); }
.mark-plum { background: var(--adv-plum-soft); padding: 0 4px; border-radius: 4px; color: var(--adv-ink); }

/* SVG wrapper inside cards */
.adv-svg { margin: 16px 0; display: flex; justify-content: center; }
.adv-svg svg { max-width: 100%; height: auto; }

/* Big idea / formula panel (legacy — kept for backward compat) */
.adv-bigidea {
  padding: 22px;
  background: var(--adv-soft);
  border-radius: var(--adv-r);
  margin: 4px 0 14px;
  border: 1.5px solid var(--adv-rule-soft);
}
.adv-bigidea-eq {
  font-size: 24px;
  color: var(--adv-ink);
  text-align: center;
  padding: 16px;
  background: var(--adv-panel);
  border-radius: var(--adv-r-sm);
  border: 1.5px solid var(--adv-rule);
  font-family: var(--adv-mono);
  margin: 12px 0;
}

/* 3-up anchor card — words | diagram | equation */
.adv-anchor {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr;
  gap: 16px;
  align-items: center;
  padding: 22px;
  background: var(--adv-soft);
  border-radius: var(--adv-r);
  border: 1.5px solid var(--adv-rule-soft);
  margin: 4px 0 14px;
}
.adv-anchor-words {
  font-size: 14.5px;
  color: var(--adv-ink);
  line-height: 1.55;
}
.adv-anchor-words p { margin: 0 0 8px; }
.adv-anchor-words p:last-child { margin-bottom: 0; }
.adv-anchor-words strong { color: var(--adv-ink); }
.adv-anchor-svg {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 130px;
}
.adv-anchor-svg svg { max-width: 100%; height: auto; max-height: 150px; }
.adv-anchor-eq {
  font-size: 22px;
  color: var(--adv-ink);
  text-align: center;
  padding: 18px 14px;
  background: var(--adv-panel);
  border-radius: var(--adv-r-sm);
  border: 1.5px solid var(--adv-rule);
  font-family: var(--adv-mono);
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.adv-anchor-eq-small { font-size: 17px; }
@media (max-width: 820px) {
  .adv-anchor { grid-template-columns: 1fr; gap: 12px; padding: 18px; }
  .adv-anchor-svg { order: 1; min-height: 0; }
  .adv-anchor-words { order: 2; }
  .adv-anchor-eq { order: 3; }
}

/* Tip cards row */
.adv-tip-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 8px 0; }
@media (max-width: 720px) { .adv-tip-row { grid-template-columns: 1fr; } }
.adv-tip {
  padding: 14px;
  border-radius: var(--adv-r-sm);
  background: var(--adv-panel);
  border: 1.5px solid var(--adv-rule);
}
.adv-tip.tip-rose { border-top: 4px solid var(--adv-rose); }
.adv-tip.tip-coral { border-top: 4px solid var(--adv-coral); }
.adv-tip.tip-gold { border-top: 4px solid var(--adv-gold); }
.adv-tip.tip-plum { border-top: 4px solid var(--adv-plum); }
.adv-tip-icon { width: 32px; height: 32px; border-radius: 9px; background: var(--adv-soft); display: grid; place-items: center; margin-bottom: 8px; color: var(--adv-rose-deep); }
.adv-tip.tip-plum .adv-tip-icon { color: var(--adv-plum-deep); }
.adv-tip.tip-gold .adv-tip-icon { color: var(--adv-gold-deep); }
.adv-tip.tip-coral .adv-tip-icon { color: var(--adv-coral-deep); }
.adv-tip-icon .adv-icon { width: 18px; height: 18px; }
.adv-tip-title { font-family: var(--adv-display); font-size: 14px; font-weight: 700; color: var(--adv-ink); margin-bottom: 4px; line-height: 1.3; }
.adv-tip-desc { font-size: 12.5px; color: var(--adv-ink-soft); line-height: 1.5; }

/* Learning intentions grid */
.adv-intentions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 4px 0; }
@media (max-width: 720px) { .adv-intentions { grid-template-columns: 1fr; } }
.adv-intent {
  padding: 16px 18px;
  border-radius: var(--adv-r-sm);
  border: 1.5px solid var(--adv-rule);
}
.adv-intent.know  { background: var(--adv-plum-soft);  border-color: var(--adv-plum); }
.adv-intent.under { background: var(--adv-rose-soft);  border-color: var(--adv-rose); }
.adv-intent.do    { background: var(--adv-gold-soft);  border-color: var(--adv-gold); }
.adv-intent h4 { font-family: var(--adv-display); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: 1.4px; margin: 0 0 8px; color: var(--adv-ink); }
.adv-intent ul { margin: 0; padding-left: 18px; }
.adv-intent li { font-size: 13.5px; color: var(--adv-ink); line-height: 1.55; }

/* Key terms grid */
.adv-kt-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.adv-kt {
  padding: 12px 14px;
  background: var(--adv-soft);
  border-radius: var(--adv-r-sm);
  border: 1.5px solid var(--adv-rule);
}
.adv-kt-term { display: block; font-family: var(--adv-display); font-weight: 700; font-size: 13.5px; color: var(--adv-plum-deep); margin-bottom: 3px; letter-spacing: 0.2px; }
.adv-kt-def  { display: block; font-size: 13px; color: var(--adv-ink-soft); line-height: 1.5; }

/* Misconceptions box */
.adv-misc { display: flex; flex-direction: column; gap: 12px; }
.adv-misc-row { display: flex; gap: 12px; align-items: flex-start; }
.adv-misc-mark { width: 26px; height: 26px; border-radius: 99px; display: grid; place-items: center; color: #fff; font-weight: 800; flex-shrink: 0; margin-top: 2px; }
.adv-misc-mark.x { background: var(--adv-red); }
.adv-misc-mark.tick { background: var(--adv-green); }
.adv-misc-text { font-size: 14.5px; color: var(--adv-ink); line-height: 1.55; margin: 0; padding-top: 2px; }
.adv-misc-text strong { color: var(--adv-ink); }

/* Worked example with reveal steps */
.adv-problem {
  padding: 16px 18px;
  background: linear-gradient(135deg, var(--adv-rose-soft) 0%, var(--adv-coral-soft) 100%);
  border-radius: var(--adv-r);
  margin: 4px 0 14px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border: 1.5px solid var(--adv-rose-soft);
}
.adv-problem-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--adv-rose); color: #fff; display: grid; place-items: center; flex-shrink: 0; font-family: var(--adv-display); font-weight: 800; font-size: 18px; }
.adv-problem-label { font-size: 11px; font-weight: 800; color: var(--adv-rose-deep); letter-spacing: 1.4px; margin-bottom: 4px; font-family: var(--adv-display); }
.adv-problem-body { font-size: 15px; color: var(--adv-ink); line-height: 1.55; }

.adv-steps { display: flex; flex-direction: column; gap: 10px; list-style: none; padding: 0; margin: 0; }
.adv-step {
  padding: 14px 16px;
  background: var(--adv-soft);
  border-radius: var(--adv-r-sm);
  border: 1.5px solid var(--adv-rule);
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  animation: adv-fade-up 0.3s ease;
}
@keyframes adv-fade-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.adv-step-num {
  width: 32px;
  height: 32px;
  background: var(--adv-plum);
  color: #fff;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-family: var(--adv-display);
  font-size: 15px;
  font-weight: 800;
}
.adv-step-label { font-family: var(--adv-display); font-size: 12px; font-weight: 700; letter-spacing: 0.4px; text-transform: uppercase; color: var(--adv-plum-deep); margin-bottom: 4px; }
.adv-step-eq { font-size: 17px; color: var(--adv-ink); margin: 0 0 6px; font-family: var(--adv-mono); }
.adv-step-why { font-size: 13px; color: var(--adv-ink-soft); line-height: 1.55; }
.adv-step-warn { font-size: 12.5px; color: var(--adv-coral-deep); background: var(--adv-coral-soft); padding: 6px 10px; border-radius: 6px; margin-top: 6px; display: inline-block; }

.adv-step-controls {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.adv-step-dots { display: flex; gap: 4px; margin-left: auto; }
.adv-step-dot { width: 28px; height: 6px; border-radius: 99px; background: var(--adv-rule); transition: background 0.2s; }
.adv-step-dot.lit { background: var(--adv-rose); }

.adv-next-btn {
  padding: 11px 18px;
  background: var(--adv-rose);
  color: #fff;
  border: none;
  border-radius: var(--adv-r-sm);
  font-family: var(--adv-display);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 3px 0 var(--adv-rose-deep);
  transition: transform 0.1s, box-shadow 0.1s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.adv-next-btn:hover { filter: brightness(1.04); }
.adv-next-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--adv-rose-deep); }
.adv-next-btn[disabled] { opacity: 0.7; cursor: default; transform: none; }

.adv-done-pill {
  padding: 10px 16px;
  background: var(--adv-green-soft);
  color: #2f5d3f;
  border-radius: var(--adv-r-sm);
  font-family: var(--adv-display);
  font-weight: 700;
  font-size: 13.5px;
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

/* Final answer pill in worked example */
.adv-final {
  margin-top: 14px;
  padding: 12px 16px;
  background: var(--adv-cream);
  border: 1.5px dashed var(--adv-gold);
  border-radius: var(--adv-r-sm);
  display: flex;
  gap: 10px;
  align-items: center;
  font-family: var(--adv-mono);
  font-weight: 700;
  color: var(--adv-ink);
}
.adv-final-label { font-family: var(--adv-display); font-weight: 800; font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--adv-gold-deep); }

/* Try It Now callout */
.adv-tryit {
  background: var(--adv-cream);
  border: 1.5px solid var(--adv-gold);
  border-left: 4px solid var(--adv-gold);
  border-radius: var(--adv-r-sm);
  padding: 14px 16px;
  margin: 14px 0 0;
  font-size: 14px;
  color: var(--adv-ink);
  line-height: 1.55;
}
.adv-tryit strong { color: var(--adv-gold-deep); }
.adv-tryit em { display: block; margin-top: 4px; color: var(--adv-ink-soft); font-style: italic; font-size: 13px; }

/* Mistakes box */
.adv-mistake-list { display: flex; flex-direction: column; gap: 14px; }
.adv-mistake {
  padding: 14px 16px;
  background: var(--adv-red-soft);
  border-left: 4px solid var(--adv-red);
  border-radius: var(--adv-r-sm);
}
.adv-mistake-name { font-family: var(--adv-display); font-size: 14px; font-weight: 700; color: var(--adv-red); margin: 0 0 4px; }
.adv-mistake-detail { font-size: 13.5px; color: var(--adv-ink); line-height: 1.55; margin: 0 0 6px; }
.adv-mistake-fix { font-size: 13.5px; color: #2f5d3f; background: var(--adv-green-soft); padding: 6px 10px; border-radius: 6px; line-height: 1.55; }

/* Copy Into Books grid */
.adv-copy-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.adv-copy-item { padding: 14px 16px; background: var(--adv-soft); border-radius: var(--adv-r-sm); border: 1.5px solid var(--adv-rule); }
.adv-copy-item h4 { font-family: var(--adv-display); font-size: 13.5px; margin: 0 0 8px; color: var(--adv-plum-deep); display: flex; align-items: center; gap: 6px; }
.adv-copy-item ul { margin: 0; padding-left: 16px; }
.adv-copy-item li { font-size: 13px; color: var(--adv-ink); line-height: 1.55; }

/* Drill list */
.adv-drill-list { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.adv-drill-item {
  padding: 14px 16px;
  background: var(--adv-soft);
  border-radius: var(--adv-r-sm);
  border: 1.5px solid var(--adv-rule);
}
.adv-drill-q { font-size: 14.5px; color: var(--adv-ink); margin: 0 0 8px; line-height: 1.55; }
.adv-drill-num {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  background: var(--adv-rose);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 800;
  font-family: var(--adv-display);
  margin-right: 8px;
  vertical-align: -2px;
}
.adv-drill-btn {
  padding: 6px 12px;
  background: var(--adv-panel);
  border: 1.5px solid var(--adv-rose);
  color: var(--adv-rose-deep);
  border-radius: 99px;
  font-family: var(--adv-body);
  font-weight: 700;
  font-size: 12px;
  cursor: pointer;
}
.adv-drill-btn:hover { background: var(--adv-rose-soft); }
.adv-drill-ans { display: none; margin-top: 10px; padding: 10px 12px; background: var(--adv-panel); border-radius: 6px; font-size: 13px; color: var(--adv-ink); line-height: 1.55; }
.adv-drill-ans.show { display: block; }
.adv-drill-ans .adv-math { display: block; font-family: var(--adv-mono); margin-top: 4px; color: var(--adv-plum-deep); }

/* MC option (2x2 grid) */
.adv-mc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 4px 0 0;
}
@media (max-width: 560px) { .adv-mc-grid { grid-template-columns: 1fr; } }
.adv-mc-opt {
  padding: 14px 16px;
  border-radius: var(--adv-r);
  cursor: pointer;
  text-align: left;
  border: 1.5px solid var(--adv-rule);
  background: var(--adv-panel);
  box-shadow: var(--adv-shadow-tight);
  transition: transform 0.1s, box-shadow 0.1s, border-color 0.15s, background 0.15s;
  display: flex;
  gap: 12px;
  align-items: center;
  font-family: var(--adv-body);
  width: 100%;
}
.adv-mc-opt:hover { border-color: var(--adv-rose); }
.adv-mc-opt:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--adv-rule); }
.adv-mc-opt.picked { transform: translateY(2px); box-shadow: 0 1px 0 var(--adv-rule); }
.adv-mc-opt.correct { border-color: var(--adv-green); background: var(--adv-green-soft); }
.adv-mc-opt.wrong { border-color: var(--adv-red); background: var(--adv-red-soft); }
.adv-mc-opt[disabled] { cursor: not-allowed; }
.adv-mc-badge { width: 32px; height: 32px; border-radius: 10px; background: var(--adv-plum-soft); color: var(--adv-plum-deep); display: grid; place-items: center; font-family: var(--adv-display); font-weight: 800; font-size: 14px; flex-shrink: 0; }
.adv-mc-opt.correct .adv-mc-badge { background: var(--adv-green); color: #fff; }
.adv-mc-opt.wrong .adv-mc-badge { background: var(--adv-red); color: #fff; }
.adv-mc-letter { font-size: 10.5px; font-weight: 800; color: var(--adv-muted); letter-spacing: 1.2px; }
.adv-mc-text { font-size: 15px; color: var(--adv-ink); font-family: var(--adv-mono); font-weight: 600; margin-top: 1px; }

.adv-mc-feedback {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: var(--adv-r);
  display: none;
  gap: 14px;
  align-items: flex-start;
  border: 1.5px solid var(--adv-rule);
}
.adv-mc-feedback.show { display: flex; }
.adv-mc-feedback.right { background: var(--adv-green-soft); border-color: var(--adv-green); }
.adv-mc-feedback.wrong { background: var(--adv-red-soft); border-color: var(--adv-red); }
.adv-mc-feedback-icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; flex-shrink: 0; color: #fff; }
.adv-mc-feedback.right .adv-mc-feedback-icon { background: var(--adv-green); }
.adv-mc-feedback.wrong .adv-mc-feedback-icon { background: var(--adv-red); }
.adv-mc-feedback-text { font-size: 14px; color: var(--adv-ink); line-height: 1.55; }

/* Question item (short answer) */
.adv-saq {
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1.5px dashed var(--adv-rule);
}
.adv-saq:first-of-type { border-top: none; padding-top: 4px; margin-top: 0; }
.adv-saq-meta { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; flex-wrap: wrap; }
.adv-pill-meta { padding: 3px 9px; border-radius: 99px; font-size: 11px; font-weight: 700; font-family: var(--adv-body); }
.adv-pill-meta.bloom { background: var(--adv-rose-soft); color: var(--adv-rose-deep); }
.adv-pill-meta.diff  { background: var(--adv-gold-soft); color: var(--adv-gold-deep); }
.adv-pill-meta.marks { background: var(--adv-plum-soft); color: var(--adv-plum-deep); margin-left: auto; }
.adv-saq-q { font-size: 14.5px; color: var(--adv-ink); margin: 0 0 10px; line-height: 1.55; }

/* Collapsible (Copy Into Books, Comprehensive Answers) */
.adv-collapse { margin: 14px 20px; }
.adv-collapse-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--adv-panel);
  border: 1.5px solid var(--adv-rule);
  border-radius: var(--adv-r-lg);
  box-shadow: var(--adv-shadow);
  cursor: pointer;
  font-family: var(--adv-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--adv-ink);
  -webkit-user-select: none;
  user-select: none;
}
.adv-collapse-trigger:hover { border-color: var(--adv-rose); }
.adv-collapse-arrow { margin-left: auto; transition: transform 0.2s; color: var(--adv-muted); }
.adv-collapse-trigger.open .adv-collapse-arrow { transform: rotate(180deg); }
.adv-collapse-body {
  display: none;
  padding: 18px 24px;
  background: var(--adv-panel);
  border: 1.5px solid var(--adv-rule);
  border-top: none;
  border-radius: 0 0 var(--adv-r-lg) var(--adv-r-lg);
  margin-top: -1px;
}
.adv-collapse-body.open { display: block; }

/* Mode banner */
.adv-mode {
  margin: 14px 20px;
  padding: 14px 18px;
  background: var(--adv-panel);
  border: 1.5px solid var(--adv-rule);
  border-radius: var(--adv-r-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.adv-mode p { margin: 0; font-size: 14px; color: var(--adv-ink-soft); }
.adv-mode-toggle { display: flex; gap: 6px; }
.adv-mode-btn { padding: 7px 14px; border-radius: 99px; border: 1.5px solid var(--adv-rule); background: transparent; color: var(--adv-ink-soft); font-family: var(--adv-body); font-weight: 700; font-size: 13px; cursor: pointer; }
.adv-mode-btn.active { background: var(--adv-plum); color: #fff; border-color: var(--adv-plum); }

/* Textareas */
.adv-textarea {
  width: 100%;
  background: var(--adv-bg);
  border: 1.5px dashed var(--adv-rule);
  border-radius: var(--adv-r-sm);
  padding: 12px 14px;
  min-height: 80px;
  font-family: var(--adv-body);
  font-size: 14px;
  line-height: 1.55;
  color: var(--adv-ink);
  resize: vertical;
}
.adv-textarea:focus { outline: none; border-color: var(--adv-rose); border-style: solid; background: #fff; }
.adv-textarea::placeholder { color: var(--adv-muted); }
.adv-book-placeholder { background: var(--adv-soft); border: 1.5px dashed var(--adv-rule); border-radius: var(--adv-r-sm); padding: 16px; min-height: 80px; display: none; align-items: center; justify-content: center; color: var(--adv-muted); font-size: 13px; gap: 6px; }
body.adv-book-mode .adv-textarea { display: none; }
body.adv-book-mode .adv-book-placeholder { display: flex; }
body.adv-book-mode .adv-digital-only { display: none; }
.adv-book-only { display: none; }
body.adv-book-mode .adv-book-only { display: block; }

/* Stretch challenge */
.adv-stretch {
  margin: 20px;
  padding: 28px 32px;
  background: linear-gradient(135deg, var(--adv-plum-deep) 0%, var(--adv-rose-deep) 100%);
  color: #fff;
  border-radius: var(--adv-r-xl);
  position: relative;
  overflow: hidden;
}
.adv-stretch-eyebrow { display: inline-block; background: rgba(255,255,255,0.18); color: var(--adv-cream); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 1.4px; padding: 4px 12px; border-radius: 99px; margin-bottom: 14px; font-family: var(--adv-display); }
.adv-stretch h3 { color: #fff; margin: 0 0 8px; font-size: 22px; font-family: var(--adv-display); font-weight: 700; }
.adv-stretch p { color: rgba(255,255,255,0.92); margin: 0 0 14px; font-size: 14.5px; line-height: 1.6; }
.adv-stretch .adv-textarea { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.3); color: #fff; }
.adv-stretch .adv-textarea::placeholder { color: rgba(255,255,255,0.6); }
.adv-stretch details { color: var(--adv-cream); margin-top: 10px; }
.adv-stretch details summary { cursor: pointer; font-family: var(--adv-display); font-weight: 700; }
.adv-stretch details p { margin-top: 8px; color: rgba(255,255,255,0.92); }

/* Quick review tiles */
.adv-review-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.adv-review-tile { padding: 14px 16px; background: var(--adv-soft); border-radius: var(--adv-r-sm); border: 1.5px solid var(--adv-rule); }
.adv-review-tile h4 { font-family: var(--adv-display); font-size: 13.5px; margin: 0 0 4px; color: var(--adv-plum-deep); }
.adv-review-tile p { font-size: 13px; color: var(--adv-ink-soft); margin: 0; line-height: 1.55; }

/* Interactive iframe wrap */
.adv-interactive { margin: 14px 20px; padding: 18px; background: var(--adv-panel); border: 1.5px solid var(--adv-rule); border-radius: var(--adv-r-lg); box-shadow: var(--adv-shadow); }
.adv-interactive h3 { font-family: var(--adv-display); font-size: 17px; margin: 0 0 8px; color: var(--adv-ink); }
.adv-interactive p { font-size: 13.5px; color: var(--adv-ink-soft); margin: 0 0 14px; }
.adv-interactive iframe { width: 100%; height: 480px; border: none; border-radius: var(--adv-r); }

/* Badge wall */
.adv-badges-card {
  margin: 14px 20px;
  padding: 22px 24px;
  background: var(--adv-panel);
  border-radius: var(--adv-r-lg);
  border: 1.5px solid var(--adv-rule);
  box-shadow: var(--adv-shadow);
}
.adv-badges-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; flex-wrap: wrap; gap: 8px; }
.adv-badges-title { display: flex; align-items: center; gap: 10px; }
.adv-badges-title h3 { font-family: var(--adv-display); font-size: 20px; font-weight: 700; color: var(--adv-ink); letter-spacing: -0.01em; }
.adv-badges-count { font-size: 12.5px; color: var(--adv-muted); font-weight: 600; }
.adv-badges-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
@media (max-width: 720px) { .adv-badges-grid { grid-template-columns: repeat(3, 1fr); } }
.adv-badge {
  padding: 14px 10px;
  border-radius: var(--adv-r);
  text-align: center;
  background: var(--adv-soft);
  border: 1.5px solid var(--adv-rule);
  position: relative;
  transition: all 0.15s;
}
.adv-badge.got { background: var(--adv-gold-soft); border-color: var(--adv-gold); }
.adv-badge-icon { width: 32px; height: 32px; margin: 0 auto 6px; color: var(--adv-muted); }
.adv-badge.got .adv-badge-icon { color: var(--adv-gold-deep); }
.adv-badge-icon svg { width: 100%; height: 100%; }
.adv-badge-name { font-family: var(--adv-body); font-size: 11.5px; font-weight: 700; color: var(--adv-ink); line-height: 1.2; }
.adv-badge-bar { margin-top: 6px; height: 4px; background: rgba(255,255,255,0.7); border-radius: 99px; overflow: hidden; }
.adv-badge-bar > span { display: block; height: 100%; background: var(--adv-rose); transition: width 0.4s ease; }
.adv-badge-lock { position: absolute; top: 6px; right: 8px; color: var(--adv-muted); }
.adv-badge-lock .adv-icon { width: 10px; height: 10px; }

/* Daily challenge + Next Up footer */
.adv-footer-row {
  margin: 14px 20px;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 14px;
}
@media (max-width: 760px) { .adv-footer-row { grid-template-columns: 1fr; } }
.adv-daily {
  padding: 22px 24px;
  background: var(--adv-ink);
  color: #fff;
  border-radius: var(--adv-r-lg);
  position: relative;
  overflow: hidden;
}
.adv-daily-eyebrow { font-size: 11px; color: var(--adv-gold); font-weight: 800; letter-spacing: 1.4px; margin-bottom: 6px; font-family: var(--adv-display); display: flex; align-items: center; gap: 6px; }
.adv-daily-title { font-family: var(--adv-display); font-size: 21px; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.01em; color: #fff; }
.adv-daily-desc { font-size: 13.5px; opacity: 0.85; margin-bottom: 14px; line-height: 1.55; color: #fff; }
.adv-daily-desc strong { color: var(--adv-gold); }
.adv-daily-btn {
  padding: 10px 18px;
  background: var(--adv-gold);
  color: #3d2700;
  border: none;
  border-radius: var(--adv-r-sm);
  font-family: var(--adv-display);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 3px 0 var(--adv-gold-deep);
}
.adv-daily-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--adv-gold-deep); }

.adv-nextup {
  padding: 22px 24px;
  background: var(--adv-panel);
  border-radius: var(--adv-r-lg);
  border: 1.5px solid var(--adv-rule);
  box-shadow: var(--adv-shadow);
}
.adv-nextup-eyebrow { font-size: 11px; color: var(--adv-muted); font-weight: 800; letter-spacing: 1.4px; margin-bottom: 6px; font-family: var(--adv-display); }
.adv-nextup-title { font-family: var(--adv-display); font-size: 18px; font-weight: 700; color: var(--adv-ink); margin-bottom: 12px; letter-spacing: -0.01em; }
.adv-nextup-bar-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.adv-nextup-bar { flex: 1; height: 10px; background: var(--adv-soft); border-radius: 99px; overflow: hidden; }
.adv-nextup-bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--adv-rose), var(--adv-coral)); }
.adv-nextup-frac { font-size: 12.5px; color: var(--adv-ink-soft); font-weight: 700; font-family: var(--adv-mono); }
.adv-nextup-note { font-size: 12.5px; color: var(--adv-ink-soft); line-height: 1.5; }

/* Completion */
.adv-complete {
  margin: 14px 20px;
  padding: 16px 22px;
  background: var(--adv-panel);
  border-radius: var(--adv-r-lg);
  border: 1.5px solid var(--adv-rule);
  box-shadow: var(--adv-shadow);
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
}
.adv-complete-box { width: 26px; height: 26px; border-radius: var(--adv-r-sm); border: 2px solid var(--adv-muted); display: grid; place-items: center; color: transparent; transition: all 0.15s; flex-shrink: 0; }
.adv-complete-box .adv-icon { width: 14px; height: 14px; }
.adv-complete.done .adv-complete-box { background: var(--adv-green); border-color: var(--adv-green); color: #fff; }
.adv-complete-text h4 { font-family: var(--adv-display); margin: 0 0 2px; font-size: 15px; color: var(--adv-ink); font-weight: 700; }
.adv-complete-text p { font-size: 13px; color: var(--adv-ink-soft); margin: 0; line-height: 1.45; }

/* Lesson nav */
.adv-nav { margin: 14px 20px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.adv-nav a {
  padding: 12px 18px;
  background: var(--adv-panel);
  border: 1.5px solid var(--adv-rule);
  border-radius: var(--adv-r);
  box-shadow: var(--adv-shadow-tight);
  color: var(--adv-ink);
  font-family: var(--adv-display);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.adv-nav a:hover { border-color: var(--adv-rose); text-decoration: none; }
.adv-meta-links { margin: 4px 20px 24px; font-size: 13px; color: var(--adv-ink-soft); text-align: center; }
.adv-meta-links a { color: var(--adv-plum); margin: 0 6px; }

/* XP toast */
.adv-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--adv-ink);
  color: #fff;
  padding: 12px 20px;
  border-radius: 99px;
  font-family: var(--adv-display);
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 6px 20px rgba(45,49,66,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 200;
}
.adv-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Score banner (Practice gate) */
.adv-score {
  margin: 14px 20px;
  padding: 14px 18px;
  border-radius: var(--adv-r);
  font-family: var(--adv-display);
  font-weight: 700;
  font-size: 15px;
  text-align: center;
  display: none;
}
.adv-score.show { display: block; }
.adv-score.pass { background: var(--adv-green-soft); color: #2f5d3f; border: 1.5px solid var(--adv-green); }
.adv-score.fail { background: var(--adv-coral-soft); color: var(--adv-coral-deep); border: 1.5px solid var(--adv-coral); }

/* ── Fade-up animation ── */
.adv-fade { opacity: 0; transform: translateY(10px); transition: opacity 0.4s ease, transform 0.4s ease; }
.adv-fade.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive tweaks ── */
@media (max-width: 760px) {
  .adv-hero { padding: 24px; }
  .adv-hero-inner { grid-template-columns: 1fr; }
  .adv-hero-art { display: none; }
  .adv-hero-ring-row { flex-direction: column; align-items: stretch; }
  .adv-card { margin-left: 14px; margin-right: 14px; padding: 20px; }
  .adv-stretch, .adv-collapse, .adv-mode, .adv-interactive, .adv-badges-card, .adv-complete, .adv-footer-row, .adv-nav { margin-left: 14px; margin-right: 14px; }
  .adv-topbar { padding: 12px 14px; gap: 8px; }
  .adv-pill { padding: 5px 10px; font-size: 12px; }
}

/* ═══════════════════════════════════════════════════════════════
   ANNOTATION UTILITIES — hand-drawn / doodle / marker effects
   ═══════════════════════════════════════════════════════════════ */

/* ── Highlighter / marker behind text ── */
.adv-marker {
  display: inline-block;
  background: linear-gradient(120deg, rgba(250,225,0,0) 0%, rgba(250,225,0,0.35) 8%, rgba(250,225,0,0.35) 92%, rgba(250,225,0,0) 100%);
  padding: 0.08em 0.25em;
  border-radius: 3px;
}
.adv-marker-rose {
  display: inline-block;
  background: linear-gradient(120deg, rgba(244,63,94,0) 0%, rgba(244,63,94,0.18) 8%, rgba(244,63,94,0.18) 92%, rgba(244,63,94,0) 100%);
  padding: 0.08em 0.25em;
  border-radius: 3px;
}
.adv-marker-plum {
  display: inline-block;
  background: linear-gradient(120deg, rgba(168,85,247,0) 0%, rgba(168,85,247,0.18) 8%, rgba(168,85,247,0.18) 92%, rgba(168,85,247,0) 100%);
  padding: 0.08em 0.25em;
  border-radius: 3px;
}
.adv-marker-gold {
  display: inline-block;
  background: linear-gradient(120deg, rgba(234,179,8,0) 0%, rgba(234,179,8,0.2) 8%, rgba(234,179,8,0.2) 92%, rgba(234,179,8,0) 100%);
  padding: 0.08em 0.25em;
  border-radius: 3px;
}
.adv-marker-sky {
  display: inline-block;
  background: linear-gradient(120deg, rgba(56,189,248,0) 0%, rgba(56,189,248,0.22) 8%, rgba(56,189,248,0.22) 92%, rgba(56,189,248,0) 100%);
  padding: 0.08em 0.25em;
  border-radius: 3px;
}

/* ── Hand-drawn wavy underline ── */
.adv-underline-wavy {
  text-decoration: underline;
  text-decoration-style: wavy;
  text-decoration-color: var(--adv-rose);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
.adv-underline-wavy-plum {
  text-decoration: underline;
  text-decoration-style: wavy;
  text-decoration-color: var(--adv-plum);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
.adv-underline-wavy-gold {
  text-decoration: underline;
  text-decoration-style: wavy;
  text-decoration-color: var(--adv-gold);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ── Sketchy / hand-drawn underline via pseudo-element ── */
.adv-underline-sketch {
  position: relative;
  display: inline;
}
.adv-underline-sketch::after {
  content: '';
  position: absolute;
  left: -2px;
  right: -2px;
  bottom: -2px;
  height: 6px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 6' preserveAspectRatio='none'%3E%3Cpath d='M0 3 Q 5 0, 10 3 T 20 3 T 30 3 T 40 3 T 50 3 T 60 3 T 70 3 T 80 3 T 90 3 T 100 3' stroke='%23f43f5e' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center bottom;
  background-size: 100% 100%;
  opacity: 0.6;
  z-index: -1;
  pointer-events: none;
}

/* ── Circled emphasis (hand-drawn circle) ── */
.adv-circle {
  position: relative;
  display: inline;
  padding: 0 0.2em;
}
.adv-circle::before {
  content: '';
  position: absolute;
  left: -4px;
  top: -2px;
  right: -4px;
  bottom: -4px;
  border: 2px solid var(--adv-rose);
  border-radius: 40% 60% 50% 50% / 50% 40% 60% 50%;
  opacity: 0.55;
  transform: rotate(-2deg);
  pointer-events: none;
}
.adv-circle-plum::before { border-color: var(--adv-plum); }
.adv-circle-gold::before { border-color: var(--adv-gold); }
.adv-circle-sky::before  { border-color: #0ea5e9; }

/* ── Sticky note callout ── */
.adv-sticky {
  display: inline-block;
  background: #fef3c7;
  padding: 0.4em 0.8em;
  margin: 0.2em 0;
  border-radius: 2px 12px 2px 8px;
  box-shadow: 2px 3px 0 rgba(0,0,0,0.08);
  transform: rotate(-0.8deg);
  font-weight: 600;
  color: #92400e;
}
.adv-sticky-rose {
  background: #ffe4e6;
  color: #9f1239;
  border-radius: 12px 2px 8px 2px;
  transform: rotate(0.6deg);
}
.adv-sticky-plum {
  background: #f3e8ff;
  color: #6b21a8;
  border-radius: 2px 8px 12px 2px;
  transform: rotate(-0.5deg);
}
.adv-sticky-sky {
  background: #e0f2fe;
  color: #075985;
  border-radius: 8px 2px 2px 12px;
  transform: rotate(0.4deg);
}

/* ── Sketchy / doodle border box ── */
.adv-doodle-box {
  position: relative;
  padding: 14px 18px;
  margin: 12px 0;
  background: #fff;
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  box-shadow: 2px 3px 0 rgba(0,0,0,0.06);
}
.adv-doodle-box::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid var(--adv-ink-soft);
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
  opacity: 0.25;
  pointer-events: none;
}
.adv-doodle-box-rose::before { border-color: var(--adv-rose); opacity: 0.4; }
.adv-doodle-box-plum::before { border-color: var(--adv-plum); opacity: 0.4; }
.adv-doodle-box-gold::before { border-color: var(--adv-gold); opacity: 0.4; }
.adv-doodle-box-sky::before  { border-color: #0ea5e9; opacity: 0.4; }

/* ── Inline doodle arrow (CSS-only) ── */
.adv-arrow-right {
  display: inline-block;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 10px solid var(--adv-rose);
  margin: 0 6px;
  vertical-align: middle;
  opacity: 0.7;
}
.adv-arrow-down {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 10px solid var(--adv-rose);
  margin: 0 6px;
  vertical-align: middle;
  opacity: 0.7;
}

/* ── Tape / label strip across top of card ── */
.adv-tape {
  display: inline-block;
  background: rgba(255,255,255,0.55);
  padding: 2px 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--adv-ink);
  transform: rotate(-1.5deg) translateY(-6px);
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
  border-radius: 2px;
}
.adv-tape-rose { background: rgba(244,63,94,0.12); color: #9f1239; }
.adv-tape-plum { background: rgba(168,85,247,0.12); color: #6b21a8; }
.adv-tape-gold { background: rgba(234,179,8,0.15); color: #854d0e; }
.adv-tape-sky  { background: rgba(14,165,233,0.12); color: #075985; }

/* ── Squiggle / zigzag divider ── */
.adv-squiggle {
  display: block;
  height: 8px;
  margin: 18px 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 8' preserveAspectRatio='none'%3E%3Cpath d='M0 4 Q 5 0, 10 4 T 20 4 T 30 4 T 40 4' stroke='%23cbd5e1' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") repeat-x center;
  background-size: 24px 8px;
  opacity: 0.6;
}
.adv-squiggle-rose { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 8' preserveAspectRatio='none'%3E%3Cpath d='M0 4 Q 5 0, 10 4 T 20 4 T 30 4 T 40 4' stroke='%23f43f5e' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); }

/* ── Small inline doodle icon wrapper ── */
.adv-doodle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: 2px solid var(--adv-ink-soft);
  border-radius: 50% 45% 55% 48% / 48% 55% 45% 50%;
  font-size: 12px;
  font-weight: 700;
  color: var(--adv-ink);
  opacity: 0.7;
  margin-right: 6px;
  vertical-align: middle;
  transform: rotate(-3deg);
}


/* ═══════════════════════════════════════════════════════════════════
   HAND-DRAWN ANNOTATION UTILITIES — organic, imperfect, human
   ═══════════════════════════════════════════════════════════════════ */

/* ── Human highlighter / marker strokes ── */
.adv-marker {
  position: relative;
  display: inline-block;
  z-index: 1;
}
.adv-marker::before {
  content: '';
  position: absolute;
  left: -4px; right: -4px;
  top: 10%; bottom: 5%;
  background: linear-gradient(105deg, rgba(250,225,0,0) 2%, rgba(250,225,0,0.5) 10%, rgba(250,225,0,0.55) 50%, rgba(250,225,0,0.5) 90%, rgba(250,225,0,0) 98%);
  border-radius: 40% 60% 55% 45% / 45% 55% 60% 40%;
  transform: rotate(-1.2deg) skewX(-0.8deg);
  z-index: -1;
  pointer-events: none;
}
.adv-marker-rose { --marker-c: rgba(244,63,94,0.45); }
.adv-marker-plum { --marker-c: rgba(168,85,247,0.4); }
.adv-marker-gold { --marker-c: rgba(234,179,8,0.45); }
.adv-marker-sky  { --marker-c: rgba(14,165,233,0.4); }
.adv-marker-rose::before, .adv-marker-plum::before,
.adv-marker-gold::before, .adv-marker-sky::before {
  background: linear-gradient(105deg, transparent 2%, var(--marker-c) 10%, var(--marker-c) 50%, var(--marker-c) 90%, transparent 98%);
}

/* Double-stroke brush highlight */
.adv-marker-brush {
  position: relative;
  display: inline-block;
  z-index: 1;
  padding: 0 2px;
}
.adv-marker-brush::before {
  content: '';
  position: absolute;
  left: -5px; right: -5px;
  top: 5%; bottom: 0;
  background: linear-gradient(100deg, rgba(250,225,0,0) 0%, rgba(250,225,0,0.6) 15%, rgba(250,225,0,0.6) 85%, rgba(250,225,0,0) 100%);
  border-radius: 35% 65% 50% 50% / 50% 50% 65% 35%;
  transform: rotate(-1.5deg);
  z-index: -1;
}
.adv-marker-brush::after {
  content: '';
  position: absolute;
  left: -3px; right: -3px;
  top: 15%; bottom: 5%;
  background: linear-gradient(110deg, rgba(250,225,0,0) 0%, rgba(250,225,0,0.35) 20%, rgba(250,225,0,0.35) 80%, rgba(250,225,0,0) 100%);
  border-radius: 60% 40% 55% 45% / 45% 55% 40% 60%;
  transform: rotate(1deg) skewX(0.5deg);
  z-index: -1;
}
.adv-marker-brush-rose { --brush-c1: rgba(244,63,94,0.55); --brush-c2: rgba(244,63,94,0.35); }
.adv-marker-brush-sky  { --brush-c1: rgba(14,165,233,0.5);  --brush-c2: rgba(14,165,233,0.3); }
.adv-marker-brush-plum { --brush-c1: rgba(168,85,247,0.5);  --brush-c2: rgba(168,85,247,0.3); }
.adv-marker-brush-gold { --brush-c1: rgba(234,179,8,0.55);   --brush-c2: rgba(234,179,8,0.35); }
.adv-marker-brush-rose::before, .adv-marker-brush-sky::before,
.adv-marker-brush-plum::before, .adv-marker-brush-gold::before {
  background: linear-gradient(100deg, transparent 0%, var(--brush-c1) 15%, var(--brush-c1) 85%, transparent 100%);
}
.adv-marker-brush-rose::after, .adv-marker-brush-sky::after,
.adv-marker-brush-plum::after, .adv-marker-brush-gold::after {
  background: linear-gradient(110deg, transparent 0%, var(--brush-c2) 20%, var(--brush-c2) 80%, transparent 100%);
}

/* ── Hand-drawn underlines ── */
.adv-underline-rough {
  position: relative;
  display: inline-block;
  padding-bottom: 5px;
}
.adv-underline-rough::after {
  content: '';
  position: absolute;
  left: -1px; right: -1px;
  bottom: 0;
  height: 5px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 5' preserveAspectRatio='none'%3E%3Cpath d='M0 3 Q 4 1, 8 3.5 T 16 2.5 T 24 3.5 T 32 2 T 40 3.5 T 48 2.5 T 56 3.5 T 60 3' stroke='%23f43f5e' stroke-width='1.8' fill='none' stroke-linecap='round' opacity='0.7'/%3E%3C/svg%3E") repeat-x center bottom;
  background-size: 100% 5px;
  pointer-events: none;
}
.adv-underline-rough-plum::after { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 5' preserveAspectRatio='none'%3E%3Cpath d='M0 3 Q 4 1, 8 3.5 T 16 2.5 T 24 3.5 T 32 2 T 40 3.5 T 48 2.5 T 56 3.5 T 60 3' stroke='%23a855f7' stroke-width='1.8' fill='none' stroke-linecap='round' opacity='0.7'/%3E%3C/svg%3E"); }
.adv-underline-rough-gold::after { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 5' preserveAspectRatio='none'%3E%3Cpath d='M0 3 Q 4 1, 8 3.5 T 16 2.5 T 24 3.5 T 32 2 T 40 3.5 T 48 2.5 T 56 3.5 T 60 3' stroke='%23eab308' stroke-width='1.8' fill='none' stroke-linecap='round' opacity='0.7'/%3E%3C/svg%3E"); }
.adv-underline-rough-sky::after  { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 5' preserveAspectRatio='none'%3E%3Cpath d='M0 3 Q 4 1, 8 3.5 T 16 2.5 T 24 3.5 T 32 2 T 40 3.5 T 48 2.5 T 56 3.5 T 60 3' stroke='%230ea5e9' stroke-width='1.8' fill='none' stroke-linecap='round' opacity='0.7'/%3E%3C/svg%3E"); }

/* Scribble underline */
.adv-underline-scribble {
  position: relative;
  display: inline-block;
  padding-bottom: 6px;
}
.adv-underline-scribble::after {
  content: '';
  position: absolute;
  left: -2px; right: -2px;
  bottom: 0;
  height: 7px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 7' preserveAspectRatio='none'%3E%3Cpath d='M0 4 Q 3 1, 6 4 T 12 2 T 18 5 T 24 2 T 30 5 T 36 2 T 40 4' stroke='%23f43f5e' stroke-width='1.5' fill='none' stroke-linecap='round' opacity='0.5'/%3E%3Cpath d='M1 5 Q 4 2, 7 5 T 13 3 T 19 6 T 25 3 T 31 6 T 37 3 T 41 5' stroke='%23f43f5e' stroke-width='1' fill='none' stroke-linecap='round' opacity='0.35'/%3E%3C/svg%3E") repeat-x center bottom;
  background-size: 32px 7px;
  pointer-events: none;
}

/* Thick brush underline */
.adv-underline-brush {
  position: relative;
  display: inline-block;
  padding-bottom: 6px;
}
.adv-underline-brush::after {
  content: '';
  position: absolute;
  left: -3px; right: -3px;
  bottom: 0;
  height: 8px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 8' preserveAspectRatio='none'%3E%3Cpath d='M0 5 Q 6 2, 12 5 T 25 4 T 38 5 T 50 4' stroke='%23f43f5e' stroke-width='3' fill='none' stroke-linecap='round' opacity='0.35'/%3E%3C/svg%3E") repeat-x center bottom;
  background-size: 100% 8px;
  pointer-events: none;
}
.adv-underline-brush-plum::after { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 8' preserveAspectRatio='none'%3E%3Cpath d='M0 5 Q 6 2, 12 5 T 25 4 T 38 5 T 50 4' stroke='%23a855f7' stroke-width='3' fill='none' stroke-linecap='round' opacity='0.35'/%3E%3C/svg%3E"); }
.adv-underline-brush-gold::after { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 8' preserveAspectRatio='none'%3E%3Cpath d='M0 5 Q 6 2, 12 5 T 25 4 T 38 5 T 50 4' stroke='%23eab308' stroke-width='3' fill='none' stroke-linecap='round' opacity='0.35'/%3E%3C/svg%3E"); }
.adv-underline-brush-sky::after  { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 8' preserveAspectRatio='none'%3E%3Cpath d='M0 5 Q 6 2, 12 5 T 25 4 T 38 5 T 50 4' stroke='%230ea5e9' stroke-width='3' fill='none' stroke-linecap='round' opacity='0.35'/%3E%3C/svg%3E"); }

/* ── Hand-drawn circles ── */
.adv-circle {
  position: relative;
  display: inline-block;
  padding: 0 0.15em;
}
.adv-circle::before {
  content: '';
  position: absolute;
  left: -5px; top: -3px; right: -5px; bottom: -5px;
  border: 2px solid var(--adv-rose);
  border-radius: 42% 58% 48% 52% / 52% 48% 58% 42%;
  opacity: 0.55;
  transform: rotate(-2.5deg);
  pointer-events: none;
}
.adv-circle-plum::before { border-color: var(--adv-plum); }
.adv-circle-gold::before { border-color: var(--adv-gold); }
.adv-circle-sky::before  { border-color: #0ea5e9; }

/* Scribble circle */
.adv-circle-scribble {
  position: relative;
  display: inline-block;
  padding: 0 0.2em;
}
.adv-circle-scribble::before,
.adv-circle-scribble::after {
  content: '';
  position: absolute;
  left: -6px; top: -4px; right: -6px; bottom: -6px;
  border: 2px solid var(--adv-rose);
  border-radius: 45% 55% 50% 50% / 50% 45% 55% 50%;
  opacity: 0.35;
  pointer-events: none;
}
.adv-circle-scribble::before { transform: rotate(-4deg); }
.adv-circle-scribble::after  { transform: rotate(6deg); border-width: 1.5px; opacity: 0.25; }
.adv-circle-scribble-plum::before, .adv-circle-scribble-plum::after { border-color: var(--adv-plum); }
.adv-circle-scribble-gold::before, .adv-circle-scribble-gold::after { border-color: var(--adv-gold); }
.adv-circle-scribble-sky::before,  .adv-circle-scribble-sky::after  { border-color: #0ea5e9; }

/* Double-circle emphasis ring */
.adv-circle-double {
  position: relative;
  display: inline-block;
  padding: 0 0.15em;
}
.adv-circle-double::before {
  content: '';
  position: absolute;
  left: -4px; top: -3px; right: -4px; bottom: -4px;
  border: 2px solid var(--adv-rose);
  border-radius: 48% 52% 45% 55% / 55% 45% 52% 48%;
  opacity: 0.4;
  transform: rotate(-2deg);
  pointer-events: none;
}
.adv-circle-double::after {
  content: '';
  position: absolute;
  left: -7px; top: -5px; right: -7px; bottom: -5px;
  border: 1.5px solid var(--adv-rose);
  border-radius: 52% 48% 55% 45% / 45% 55% 48% 52%;
  opacity: 0.25;
  transform: rotate(3deg);
  pointer-events: none;
}

/* ── Hand-drawn arrows ── */
.adv-arrow-right,
.adv-arrow-left,
.adv-arrow-up,
.adv-arrow-down {
  display: inline-block;
  vertical-align: middle;
  width: 22px;
  height: 14px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  margin: 0 3px;
  opacity: 0.7;
}
.adv-arrow-right {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 12'%3E%3Cpath d='M1 6 Q 8 4, 15 6 T 28 6' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3Cpath d='M22 2 L 28 6 L 22 10' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.adv-arrow-left {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 12'%3E%3Cpath d='M29 6 Q 22 4, 15 6 T 2 6' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3Cpath d='M8 2 L 2 6 L 8 10' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.adv-arrow-up {
  width: 14px; height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 24'%3E%3Cpath d='M6 23 Q 5 16, 6 8 T 6 2' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3Cpath d='M2 7 L 6 2 L 10 7' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.adv-arrow-down {
  width: 14px; height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 24'%3E%3Cpath d='M6 1 Q 7 8, 6 16 T 6 22' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3Cpath d='M2 17 L 6 22 L 10 17' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.adv-arrow-curved {
  display: inline-block;
  width: 32px;
  height: 24px;
  vertical-align: middle;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 36 24'%3E%3Cpath d='M2 20 Q 10 4, 28 8' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3Cpath d='M22 3 L 29 8 L 24 14' stroke='%23333' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
  margin: 0 4px;
  opacity: 0.7;
}

.adv-arrow-squiggly {
  display: inline-block;
  width: 30px;
  height: 12px;
  vertical-align: middle;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 10'%3E%3Cpath d='M1 5 Q 4 2, 7 5 T 14 3 T 21 5 T 28 3' stroke='%23333' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3Cpath d='M24 1 L 29 3.5 L 24 7' stroke='%23333' stroke-width='1.8' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
  margin: 0 3px;
  opacity: 0.65;
}

/* ── Sticky notes ── */
.adv-sticky {
  display: inline-block;
  background: #fef3c7;
  padding: 0.4em 0.9em;
  border-radius: 2px 14px 3px 10px / 10px 3px 14px 2px;
  box-shadow: 2px 3px 0 rgba(0,0,0,0.1);
  transform: rotate(-0.8deg);
  font-weight: 700;
  color: #92400e;
}
.adv-sticky-rose { background: #ffe4e6; color: #9f1239; transform: rotate(0.7deg); border-radius: 14px 2px 10px 3px / 3px 10px 2px 14px; }
.adv-sticky-plum { background: #f3e8ff; color: #6b21a8; transform: rotate(-0.6deg); border-radius: 3px 10px 14px 2px / 2px 14px 10px 3px; }
.adv-sticky-sky  { background: #e0f2fe; color: #075985; transform: rotate(0.5deg); border-radius: 10px 3px 2px 14px / 14px 2px 3px 10px; }

.adv-sticky-taped {
  position: relative;
  display: inline-block;
  background: #fef3c7;
  padding: 0.5em 1em;
  border-radius: 2px 12px 3px 8px;
  box-shadow: 2px 3px 0 rgba(0,0,0,0.08);
  transform: rotate(-0.6deg);
  font-weight: 700;
  color: #92400e;
}
.adv-sticky-taped::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(-1deg);
  width: 40px;
  height: 12px;
  background: rgba(255,255,255,0.5);
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
  border-radius: 2px;
}

/* ── Doodle / sketch boxes ── */
.adv-doodle-box {
  position: relative;
  padding: 14px 18px;
  margin: 12px 0;
  background: #fff;
  border-radius: 255px 18px 225px 18px / 18px 225px 18px 255px;
}
.adv-doodle-box::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2.5px solid var(--adv-ink-soft);
  border-radius: 255px 18px 225px 18px / 18px 225px 18px 255px;
  opacity: 0.22;
  pointer-events: none;
}
.adv-doodle-box-rose::before { border-color: var(--adv-rose); opacity: 0.35; }
.adv-doodle-box-plum::before { border-color: var(--adv-plum); opacity: 0.35; }
.adv-doodle-box-gold::before { border-color: var(--adv-gold); opacity: 0.35; }
.adv-doodle-box-sky::before  { border-color: #0ea5e9; opacity: 0.35; }

.adv-doodle-scribble {
  position: relative;
  padding: 14px 18px;
  margin: 12px 0;
  background: #fff;
}
.adv-doodle-scribble::before,
.adv-doodle-scribble::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid var(--adv-rose);
  border-radius: 45% 55% 48% 52% / 52% 48% 55% 45%;
  opacity: 0.25;
  pointer-events: none;
}
.adv-doodle-scribble::before { transform: rotate(-1deg); }
.adv-doodle-scribble::after  { transform: rotate(2deg); border-width: 1.5px; opacity: 0.2; }

.adv-doodle-cloud {
  position: relative;
  padding: 16px 20px;
  margin: 12px 0;
  background: #fff;
  border-radius: 30px 45px 35px 50px / 50px 35px 45px 30px;
}
.adv-doodle-cloud::before {
  content: '';
  position: absolute;
  inset: -2px;
  border: 2px dashed var(--adv-ink-soft);
  border-radius: 35px 50px 40px 45px / 45px 40px 50px 35px;
  opacity: 0.3;
  pointer-events: none;
}

/* ── Connectors ── */
.adv-connector-h {
  display: block;
  height: 2px;
  margin: 8px 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 2'%3E%3Ccircle cx='2' cy='1' r='1' fill='%2394a3b8'/%3E%3Ccircle cx='10' cy='1' r='1' fill='%2394a3b8'/%3E%3Ccircle cx='18' cy='1' r='1' fill='%2394a3b8'/%3E%3C/svg%3E") repeat-x center;
  background-size: 20px 2px;
  opacity: 0.5;
}

/* ── Hand-drawn bracket ── */
.adv-bracket {
  position: relative;
  display: inline-block;
  padding: 0 0.5em;
}
.adv-bracket::before,
.adv-bracket::after {
  content: '';
  position: absolute;
  top: -2px; bottom: -2px;
  width: 8px;
  border: 2px solid var(--adv-ink-soft);
  opacity: 0.4;
  pointer-events: none;
}
.adv-bracket::before { left: -2px; border-right: none; border-radius: 8px 0 0 8px; transform: rotate(-1deg); }
.adv-bracket::after  { right: -2px; border-left: none; border-radius: 0 8px 8px 0; transform: rotate(1deg); }

/* ── Cross-out (hand-drawn strike-through) ── */
.adv-cross-out {
  position: relative;
  display: inline-block;
}
.adv-cross-out::after {
  content: '';
  position: absolute;
  left: -4px; right: -4px;
  top: 50%;
  height: 5px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 6' preserveAspectRatio='none'%3E%3Cpath d='M0 3 Q 8 1, 16 4 T 32 2 T 48 4 T 60 3' stroke='%23dc2626' stroke-width='3' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center;
  background-size: 100% 5px;
  opacity: 0.9;
  transform: rotate(-1.5deg) translateY(-1px);
  pointer-events: none;
}

/* ── Squiggle divider ── */
.adv-squiggle {
  display: block;
  height: 8px;
  margin: 18px 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 8' preserveAspectRatio='none'%3E%3Cpath d='M0 4 Q 5 0, 10 4 T 20 4 T 30 4 T 40 4' stroke='%23cbd5e1' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") repeat-x center;
  background-size: 24px 8px;
  opacity: 0.5;
}
.adv-squiggle-rose { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 8' preserveAspectRatio='none'%3E%3Cpath d='M0 4 Q 5 0, 10 4 T 20 4 T 30 4 T 40 4' stroke='%23f43f5e' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); }
.adv-squiggle-plum { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 8' preserveAspectRatio='none'%3E%3Cpath d='M0 4 Q 5 0, 10 4 T 20 4 T 30 4 T 40 4' stroke='%23a855f7' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); }

/* ── Doodle icons ── */
.adv-doodle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 2.5px solid var(--adv-ink-soft);
  border-radius: 50% 45% 55% 48% / 48% 55% 45% 50%;
  font-size: 12px;
  font-weight: 800;
  color: var(--adv-ink);
  opacity: 0.65;
  margin-right: 6px;
  vertical-align: middle;
  transform: rotate(-3deg);
}
.adv-doodle-icon-rose { border-color: var(--adv-rose); color: var(--adv-rose); }
.adv-doodle-icon-plum { border-color: var(--adv-plum); color: var(--adv-plum); }
.adv-doodle-icon-gold { border-color: var(--adv-gold); color: var(--adv-gold); }
.adv-doodle-icon-sky  { border-color: #0ea5e9; color: #0ea5e9; }

/* ── Tape / label strip ── */
.adv-tape {
  display: inline-block;
  background: rgba(255,255,255,0.6);
  padding: 2px 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--adv-ink);
  transform: rotate(-1.5deg) translateY(-5px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  border-radius: 2px;
}
.adv-tape-rose { background: rgba(244,63,94,0.14); color: #9f1239; }
.adv-tape-plum { background: rgba(168,85,247,0.14); color: #6b21a8; }
.adv-tape-gold { background: rgba(234,179,8,0.18); color: #854d0e; }
.adv-tape-sky  { background: rgba(14,165,233,0.14); color: #075985; }