/* ============================================
   /learnai — Community AI Workshop Site
   Light, approachable, interactive
   Depends on styles.css for base tokens
   ============================================ */

/* --- Page scaffold --- */
.la-page {
  background: linear-gradient(180deg, #fafbfc 0%, var(--slate-50) 100%);
  min-height: 100vh;
}

.la-nav {
  background: white;
  border-bottom: 1px solid var(--slate-200);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.la-nav .nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.la-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--slate-900);
  letter-spacing: -0.01em;
}

.la-brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--slate-900);
  color: white;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.la-brand-small {
  color: var(--slate-500);
  font-weight: 500;
  font-size: 0.8rem;
}

.la-nav-links {
  display: flex;
  gap: 1.4rem;
  list-style: none;
  font-size: 0.9rem;
  flex-wrap: wrap;
}

.la-nav-links a {
  color: var(--slate-600);
  font-weight: 500;
  transition: color 0.15s;
}

.la-nav-links a:hover { color: var(--slate-900); }
.la-nav-links a.active { color: var(--slate-900); font-weight: 600; }

@media (max-width: 640px) {
  .la-nav .nav-inner { padding: 0.85rem 1rem; flex-wrap: wrap; gap: 0.8rem; }
  .la-nav-links { gap: 0.9rem; font-size: 0.82rem; width: 100%; justify-content: flex-start; flex-wrap: wrap; }
  .la-brand-small { display: none; }
  .la-btn { min-height: 44px; }
}

/* --- Containers --- */
.la-wrap { max-width: 840px; margin: 0 auto; padding: 3rem 1.5rem; }
.la-wrap-wide { max-width: 1100px; margin: 0 auto; padding: 3rem 1.5rem; }
.la-wrap-narrow { max-width: 680px; margin: 0 auto; padding: 3rem 1.5rem; }

/* --- Hero --- */
.la-hero {
  padding: 4.5rem 0 3rem;
  text-align: left;
}

.la-hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 1rem;
}

.la-hero h1 {
  font-size: 3rem;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 1.2rem;
  color: var(--slate-900);
}

.la-hero h1 em {
  font-style: normal;
  color: var(--blue-600);
}

.la-hero .lede {
  font-size: 1.2rem;
  line-height: 1.55;
  color: var(--slate-600);
  max-width: 640px;
  margin-bottom: 2rem;
}

.la-hero-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--slate-500);
  padding-top: 1.5rem;
  border-top: 1px solid var(--slate-200);
  margin-top: 2rem;
}

.la-hero-meta strong {
  color: var(--slate-800);
  font-weight: 600;
  margin-right: 0.3rem;
}

/* --- Sections --- */
.la-section {
  padding: 3rem 0;
  border-top: 1px solid var(--slate-200);
}

.la-section:first-of-type { border-top: none; }

.la-section h2 {
  font-size: 2rem;
  margin-bottom: 0.7rem;
  color: var(--slate-900);
  letter-spacing: -0.025em;
}

.la-section .sub {
  color: var(--slate-600);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 640px;
}

.la-section p { color: var(--slate-700); margin-bottom: 1rem; line-height: 1.65; }
.la-section p.big { font-size: 1.1rem; }

/* --- Cards --- */
.la-card {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
}

.la-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
  color: var(--slate-900);
}

.la-card p { font-size: 0.95rem; color: var(--slate-600); margin-bottom: 0; }

.la-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.la-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

@media (max-width: 760px) {
  .la-grid-3, .la-grid-2 { grid-template-columns: 1fr; }
  .la-hero h1 { font-size: 2.2rem; }
  .la-section h2 { font-size: 1.5rem; }
}

/* --- Three Questions prompt builder --- */
.la-builder {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin: 2rem 0 3rem;
}

.la-builder-head {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: white;
  padding: 1.5rem 2rem;
}

.la-builder-head .tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #93c5fd;
  margin-bottom: 0.4rem;
}

.la-builder-head h3 {
  font-size: 1.4rem;
  color: white;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.la-builder-head p {
  color: #cbd5e1;
  font-size: 0.92rem;
  margin-top: 0.3rem;
}

.la-builder-body { padding: 1.8rem 2rem; }

.la-step {
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--slate-100);
}

.la-step:last-child { border-bottom: none; }

.la-step-head {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  margin-bottom: 0.8rem;
}

.la-step-num {
  flex: 0 0 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--blue-600);
  color: white;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.la-step-title {
  font-weight: 600;
  color: var(--slate-900);
  font-size: 1.05rem;
  margin-bottom: 0.15rem;
}

.la-step-hint {
  font-size: 0.85rem;
  color: var(--slate-500);
}

.la-step textarea,
.la-step input[type="text"] {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius);
  font: inherit;
  color: var(--slate-800);
  background: var(--slate-50);
  resize: vertical;
  font-size: 0.95rem;
  transition: border-color 0.15s, background 0.15s;
}

.la-step textarea:focus,
.la-step input[type="text"]:focus {
  outline: none;
  border-color: var(--blue-500);
  background: white;
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.12);
}

.la-step textarea { min-height: 70px; }

.la-actions {
  display: flex;
  gap: 0.7rem;
  padding: 1.3rem 2rem 1.8rem;
  background: var(--slate-50);
  border-top: 1px solid var(--slate-200);
  flex-wrap: wrap;
}

.la-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s, background 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.la-btn:active { transform: translateY(1px); }

.la-btn-primary {
  background: var(--blue-600);
  color: white;
  box-shadow: 0 1px 2px rgb(37 99 235 / 0.2);
}
.la-btn-primary:hover { background: var(--blue-700); color: white; box-shadow: 0 4px 12px rgb(37 99 235 / 0.25); }

.la-btn-secondary {
  background: white;
  color: var(--slate-700);
  border-color: var(--slate-300);
}
.la-btn-secondary:hover { background: var(--slate-50); color: var(--slate-900); border-color: var(--slate-400); }

.la-btn-ghost {
  background: transparent;
  color: var(--slate-500);
}
.la-btn-ghost:hover { color: var(--slate-800); }

/* --- Output pane --- */
.la-output {
  display: none;
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.8rem;
  margin-top: 0.2rem;
}

.la-output.visible { display: block; animation: fadeIn 0.35s ease; }

.la-output .label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-700);
  margin-bottom: 0.6rem;
}

.la-output .prompt-text {
  background: white;
  border: 1px solid var(--blue-100);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--slate-800);
  white-space: pre-wrap;
  word-wrap: break-word;
  margin-bottom: 1rem;
}

.la-output-note {
  font-size: 0.82rem;
  color: var(--slate-600);
  line-height: 1.5;
}

/* --- Q-card list (three questions landing) --- */
.la-qcard {
  padding: 1.6rem 1.8rem;
  background: white;
  border: 1px solid var(--slate-200);
  border-left: 4px solid var(--blue-500);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  transition: transform 0.15s, box-shadow 0.15s;
}

.la-qcard:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }

.la-qcard .q-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--blue-600);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

.la-qcard h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--slate-900);
}

.la-qcard p { font-size: 0.95rem; color: var(--slate-600); margin: 0; }

/* --- Myth flip cards --- */
.la-myths {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 760px) { .la-myths { grid-template-columns: 1fr; } }

.la-myth {
  background: transparent;
  perspective: 1000px;
  height: 340px;
  cursor: pointer;
}

.la-myth-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.la-myth.flipped .la-myth-inner { transform: rotateY(180deg); }

.la-myth-face {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius-lg);
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.la-myth-front {
  background: white;
  border: 1px solid var(--slate-200);
}
.la-myth-front .eyebrow { color: var(--red-500); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.4rem; }
.la-myth-front .claim { font-size: 1.05rem; font-weight: 600; color: var(--slate-900); line-height: 1.35; }
.la-myth-front .cta { font-size: 0.78rem; color: var(--slate-500); margin-top: auto; }

.la-myth-back {
  background: var(--slate-900);
  color: white;
  transform: rotateY(180deg);
}
.la-myth-back .eyebrow { color: #86efac; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.4rem; }
.la-myth-back p { font-size: 0.92rem; line-height: 1.5; color: #e2e8f0; }
.la-myth-back .src { font-size: 0.72rem; color: var(--slate-400); margin-top: auto; padding-top: 0.6rem; }

/* --- Example rows (try-tonight page) --- */
.la-example {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.2rem;
}

.la-example-head {
  padding: 1.1rem 1.4rem;
  background: var(--slate-50);
  border-bottom: 1px solid var(--slate-200);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background 0.12s;
}
.la-example-head:hover { background: var(--slate-100); }

.la-example-head h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--slate-900);
  margin: 0;
}

.la-example-head .chev {
  color: var(--slate-400);
  font-size: 1.2rem;
  transition: transform 0.2s;
}
.la-example.open .chev { transform: rotate(90deg); color: var(--blue-600); }

.la-example-body {
  display: none;
  padding: 1.3rem 1.4rem;
  border-top: 1px solid var(--slate-100);
}
.la-example.open .la-example-body { display: block; animation: fadeIn 0.3s ease; }

.la-example-body .bad,
.la-example-body .good {
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 0.8rem;
  white-space: pre-wrap;
}
.la-example-body .bad { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.la-example-body .good { background: var(--green-50); border: 1px solid #bbf7d0; color: #14532d; }
.la-example-body .note { font-size: 0.9rem; color: var(--slate-600); line-height: 1.55; }
.la-example-body .lbl { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.3rem; display: block; }

/* --- CTAs / request form --- */
.la-cta-block {
  background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
  color: white;
  border-radius: var(--radius-xl);
  padding: 2.5rem 2.5rem;
  margin: 3rem 0;
}

.la-cta-block h2 {
  color: white;
  font-size: 1.8rem;
  margin-bottom: 0.6rem;
}
.la-cta-block p { color: #cbd5e1; font-size: 1rem; margin-bottom: 1.5rem; max-width: 560px; }

.la-cta-block .la-btn-primary {
  background: white;
  color: var(--slate-900);
}
.la-cta-block .la-btn-primary:hover { background: var(--slate-100); color: var(--slate-900); }

/* --- Toast --- */
.la-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--slate-900);
  color: white;
  padding: 0.85rem 1.2rem;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  z-index: 100;
}
.la-toast.visible { opacity: 1; transform: translateY(0); }

/* --- Footer --- */
.la-footer {
  background: white;
  border-top: 1px solid var(--slate-200);
  padding: 2rem 0;
  margin-top: 3rem;
  text-align: center;
  color: var(--slate-500);
  font-size: 0.85rem;
}

.la-footer a { color: var(--slate-700); font-weight: 500; }

/* --- Utilities --- */
.la-small { font-size: 0.85rem; color: var(--slate-500); }
.la-muted { color: var(--slate-500); }
.la-divider { height: 1px; background: var(--slate-200); margin: 2.5rem 0; }

.la-callout {
  background: var(--amber-50);
  border: 1px solid var(--amber-100);
  border-left: 4px solid var(--amber-500);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  margin: 1.5rem 0;
}
.la-callout strong { color: #78350f; }
.la-callout p { color: #78350f; font-size: 0.95rem; line-height: 1.55; margin: 0.3rem 0 0; }

.la-callout-blue {
  background: var(--blue-50);
  border-color: var(--blue-100);
  border-left-color: var(--blue-500);
}
.la-callout-blue strong { color: var(--blue-700); }
.la-callout-blue p { color: #1e3a8a; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Lists that look less like HTML lists */
.la-list-clean { list-style: none; padding: 0; }
.la-list-clean li {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--slate-100);
  color: var(--slate-700);
  font-size: 0.98rem;
  line-height: 1.55;
}
.la-list-clean li:last-child { border: none; }
.la-list-clean li strong { color: var(--slate-900); font-weight: 600; margin-right: 0.3rem; }

/* =========================================
   FOR PARENTS page — components
   ========================================= */

/* The one rule callout */
.la-fp-rule {
  background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
  color: white;
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
  margin: 1rem 0 2rem;
}
.la-fp-rule-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #93c5fd;
  margin-bottom: 0.7rem;
}
.la-fp-rule-quote {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: white;
  margin-bottom: 1rem;
}
.la-fp-rule p.la-fp-rule-body,
.la-section p.la-fp-rule-body {
  color: #cbd5e1;
  font-size: 1rem;
  line-height: 1.6;
  max-width: 60ch;
  margin: 0 auto;
}
.la-fp-rule p.la-fp-rule-body strong,
.la-section p.la-fp-rule-body strong {
  color: white;
}
.la-fp-rule p.la-fp-rule-body em,
.la-section p.la-fp-rule-body em {
  color: #93c5fd;
  font-style: italic;
}

@media (max-width: 560px) {
  .la-fp-rule { padding: 1.8rem 1.4rem; }
  .la-fp-rule-quote { font-size: 1.6rem; }
}

/* Decision articles (shared-style with journey Station 9) */
.la-fp-decision {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 1.3rem;
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--slate-200);
}
.la-fp-decision:last-of-type { border-bottom: none; }

.la-fp-decision-num {
  font-size: 2.4rem;
  font-weight: 300;
  color: var(--blue-600);
  line-height: 1;
  letter-spacing: -0.03em;
  padding-top: 0.3rem;
}

.la-fp-decision-body h3 {
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 0.8rem;
  color: var(--slate-900);
}

.la-fp-scenario {
  background: var(--slate-100);
  border-left: 3px solid var(--slate-400);
  padding: 0.7rem 1rem;
  border-radius: 0 4px 4px 0;
  font-size: 0.95rem;
  color: var(--slate-700);
  font-style: italic;
  margin: 0 0 1rem !important;
}
.la-fp-scenario::before {
  content: 'Scenario · ';
  font-style: normal;
  font-weight: 700;
  color: var(--slate-500);
  letter-spacing: 0.06em;
  font-size: 0.76rem;
  text-transform: uppercase;
}

.la-fp-list {
  margin: 0.6rem 0 1rem 1.3rem;
  color: var(--slate-700);
  font-size: 0.98rem;
  line-height: 1.65;
}
.la-fp-list li { padding: 0.2rem 0; }

@media (max-width: 500px) {
  .la-fp-decision { grid-template-columns: 40px 1fr; gap: 0.9rem; }
  .la-fp-decision-num { font-size: 1.8rem; }
  .la-fp-decision-body h3 { font-size: 1.15rem; }
}

/* Age-by-age expandable cards */
.la-fp-age-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}
@media (max-width: 640px) {
  .la-fp-age-grid { grid-template-columns: 1fr; }
}

.la-fp-age-card {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 10px;
  padding: 0;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.2s, transform 0.15s;
  overflow: hidden;
}
.la-fp-age-card:hover {
  border-color: var(--blue-500);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.la-fp-age-card[aria-expanded="true"] {
  border-color: var(--blue-500);
  background: var(--blue-50);
  box-shadow: 0 10px 30px -18px rgb(37 99 235 / 0.25);
}

.la-fp-age-head {
  padding: 1.2rem 1.4rem 0.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.la-fp-age-range {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-600);
  background: var(--blue-50);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}
.la-fp-age-card[aria-expanded="true"] .la-fp-age-range {
  background: var(--blue-600);
  color: white;
}
.la-fp-age-chev {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--slate-400);
  transition: transform 0.25s;
}
.la-fp-age-card[aria-expanded="true"] .la-fp-age-chev {
  transform: rotate(45deg);
  color: var(--blue-600);
}
.la-fp-age-title {
  padding: 0 1.4rem 1.2rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--slate-900);
  line-height: 1.3;
}
.la-fp-age-body {
  max-height: 0;
  overflow: hidden;
  padding: 0 1.4rem;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--slate-700);
  font-size: 0.94rem;
  line-height: 1.65;
}
.la-fp-age-card[aria-expanded="true"] .la-fp-age-body {
  max-height: 1500px;
  padding: 1rem 1.4rem 1.3rem;
  border-top: 1px solid var(--blue-100);
}
.la-fp-age-body p { margin: 0 0 0.8rem; }
.la-fp-age-body p:last-child { margin-bottom: 0; }

/* Cross-link callout to LearnAI4Kids inside an age-card */
.la-fp-age-link {
  margin-top: 0.9rem !important;
  padding: 0.7rem 0.9rem;
  background: var(--blue-50);
  border-left: 3px solid var(--blue-500);
  border-radius: 0 4px 4px 0;
  font-size: 0.92rem;
}
.la-fp-age-link a {
  color: var(--blue-700);
  font-weight: 600;
}

/* Tool cards (copy prompt) */
.la-fp-tool {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 10px;
  padding: 0;
  margin-bottom: 1.3rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.la-fp-tool-head {
  padding: 1.3rem 1.5rem 0.6rem;
}
.la-fp-tool-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-600);
}
.la-fp-tool-title {
  font-size: 1.3rem !important;
  font-weight: 600;
  color: var(--slate-900);
  margin: 0.3rem 0 0.5rem !important;
  line-height: 1.2;
}
.la-fp-tool-desc {
  color: var(--slate-600) !important;
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 0 0.5rem !important;
}
.la-fp-tool-text {
  margin: 0;
  padding: 1.2rem 1.5rem;
  background: var(--slate-900);
  color: var(--slate-100);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 360px;
  overflow-y: auto;
  border-top: 1px solid var(--slate-200);
  border-bottom: 1px solid var(--slate-200);
}
.la-fp-tool-controls {
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Scenario cards (when things go wrong) */
.la-fp-scenario-card {
  background: white;
  border: 1px solid var(--slate-200);
  border-left: 4px solid var(--amber-500);
  border-radius: 6px;
  padding: 1.5rem 1.7rem;
  margin-bottom: 1.2rem;
  box-shadow: var(--shadow-sm);
}
.la-fp-scenario-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--slate-900);
  margin-bottom: 0.8rem;
}
.la-fp-scenario-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-600);
  margin-bottom: 0.3rem;
  display: block;
}
.la-fp-scenario-card p {
  color: var(--slate-700);
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0 0 0.8rem;
}
.la-fp-scenario-card p:last-child { margin-bottom: 0; }

/* Conversation starters */
.la-fp-starters {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  counter-reset: starter;
}
.la-fp-starters li {
  counter-increment: starter;
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 6px;
  padding: 1rem 1.2rem 1rem 3.3rem;
  margin-bottom: 0.6rem;
  position: relative;
  color: var(--slate-800);
  font-size: 0.98rem;
  line-height: 1.55;
}
.la-fp-starters li::before {
  content: counter(starter, decimal-leading-zero);
  position: absolute;
  left: 0.9rem;
  top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--blue-600);
  letter-spacing: 0.04em;
}

/* Footer links row (used across /learnai pages) */
.la-footer-links a {
  color: var(--slate-600);
  margin: 0 0.2rem;
}
.la-footer-links a:hover { color: var(--slate-900); }

.la-last-reviewed {
  margin-top: 1rem;
  font-size: 0.74rem;
  color: var(--slate-400);
  letter-spacing: 0.02em;
}

/* =========================================
   Crisis callout box (for mental-health escalation)
   ========================================= */
.la-crisis-box {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-left: 4px solid #dc2626;
  border-radius: 6px;
  padding: 1.1rem 1.3rem;
  margin: 1.3rem 0;
  font-size: 0.95rem;
  color: #7f1d1d;
  line-height: 1.6;
}
.la-crisis-box-head {
  display: block;
  font-weight: 700;
  color: #991b1b;
  font-size: 1.02rem;
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}
.la-crisis-box a {
  color: #b91c1c;
  font-weight: 700;
  text-decoration: underline;
}
.la-crisis-box a:hover { color: #7f1d1d; }
.la-crisis-box-num {
  font-weight: 800;
  font-size: 1.08em;
  color: #991b1b;
}

/* Subtle disclaimer note */
.la-disclaimer {
  background: var(--slate-50);
  border-left: 3px solid var(--slate-300);
  padding: 0.7rem 1rem;
  border-radius: 0 4px 4px 0;
  font-size: 0.85rem;
  color: var(--slate-600);
  font-style: italic;
  line-height: 1.55;
  margin: 0.8rem 0 1rem;
}

/* =========================================
   Provider pills (slate-palette variant)
   ========================================= */
.la-providers {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--slate-200);
}
.la-providers-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate-500);
  font-weight: 600;
  margin-right: 0.25rem;
  flex-shrink: 0;
}
.la-providers a {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.95rem;
  background: white;
  border: 1px solid var(--slate-300);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--slate-800);
  text-decoration: none;
  transition: all 0.15s;
  min-height: 36px;
}
.la-providers a:hover {
  border-color: var(--blue-500);
  background: var(--blue-50);
  color: var(--blue-700);
  transform: translateY(-1px);
}
.la-providers-note {
  width: 100%;
  font-size: 0.82rem;
  color: var(--slate-500);
  margin-top: 0.3rem;
  font-style: italic;
}

@media (max-width: 500px) {
  .la-providers a { padding: 0.55rem 0.75rem; font-size: 0.82rem; }
}

/* =========================================
   GLOSSARY popup — inline term definitions
   ========================================= */
.la-gloss {
  border-bottom: 1px dashed currentColor;
  cursor: help;
  color: inherit;
  transition: color 0.12s, background 0.12s;
  padding: 0 1px;
  border-radius: 2px;
}
.la-gloss:hover,
.la-gloss:focus {
  color: var(--blue-700);
  outline: none;
  background: var(--blue-50);
}
.la-gloss::after {
  content: '?';
  display: inline-block;
  vertical-align: super;
  font-size: 0.65em;
  font-weight: 600;
  color: var(--blue-600);
  margin-left: 0.15em;
  line-height: 1;
  opacity: 0.7;
}

.la-gloss-popup {
  position: absolute;
  z-index: 200;
  width: 300px;
  max-width: calc(100vw - 1.5rem);
  background: white;
  border: 1px solid var(--slate-300);
  border-radius: 8px;
  padding: 0.95rem 1.05rem;
  box-shadow: 0 20px 40px -15px rgb(15 23 42 / 0.25), 0 2px 4px rgb(15 23 42 / 0.05);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--slate-800);
  display: none;
}
.la-gloss-popup.visible { display: block; animation: fadeIn 0.18s ease; }

.la-gloss-popup-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}
.la-gloss-popup-head strong {
  color: var(--slate-900);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}
.la-gloss-popup-x {
  background: transparent;
  border: none;
  color: var(--slate-400);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 0.3rem;
  border-radius: 3px;
  margin: -0.1rem -0.3rem 0 0;
}
.la-gloss-popup-x:hover { color: var(--slate-900); background: var(--slate-100); }
.la-gloss-popup-desc { color: var(--slate-700); margin-bottom: 0.6rem; }
.la-gloss-popup-link {
  font-size: 0.8rem;
  color: var(--blue-600);
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
}
.la-gloss-popup-link:hover { color: var(--blue-700); text-decoration: underline; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* =========================================
   MOBILE POLISH — final pass for portrait phones
   Covers gaps not caught by earlier breakpoints.
   ========================================= */

/* Base tightening at ≤600px */
@media (max-width: 600px) {
  /* Hero tightening across all reference pages */
  .la-hero { padding: 2.5rem 0 1.5rem; }
  .la-hero h1 { font-size: 1.85rem !important; line-height: 1.15; }
  .la-hero .lede { font-size: 1rem; line-height: 1.55; }
  .la-hero-meta {
    gap: 0.9rem;
    font-size: 0.8rem;
    padding-top: 1rem;
    margin-top: 1.2rem;
    flex-direction: column;
  }

  /* Section typography */
  .la-section { padding: 2rem 0; }
  .la-section h2 { font-size: 1.4rem !important; line-height: 1.2; }
  .la-section .sub { font-size: 0.95rem; margin-bottom: 1.2rem; }
  .la-section p { font-size: 0.98rem; }
  .la-section p.big { font-size: 1rem; }

  /* Wrap containers tighter */
  .la-wrap, .la-wrap-wide, .la-wrap-narrow { padding: 1.8rem 1rem 2.5rem; }

  /* Cards */
  .la-card { padding: 1.3rem 1.2rem; }
  .la-card h3 { font-size: 1.05rem; }

  /* Grids collapse */
  .la-grid-3, .la-grid-2 { grid-template-columns: 1fr !important; gap: 0.8rem; }

  /* CTA block */
  .la-cta-block { padding: 1.6rem 1.3rem; }
  .la-cta-block h2 { font-size: 1.3rem; }
  .la-cta-block p { font-size: 0.95rem; }

  /* Prompt builder */
  .la-builder-head { padding: 1.1rem 1.2rem; }
  .la-builder-head h3 { font-size: 1.15rem; }
  .la-builder-body { padding: 1.2rem 1.2rem; }
  .la-step { padding: 0.9rem 0; }
  .la-step-head { gap: 0.7rem; }
  .la-step-num { flex: 0 0 28px; height: 28px; font-size: 0.82rem; }
  .la-step-title { font-size: 0.98rem; }
  .la-step-hint { font-size: 0.82rem; }
  .la-actions { padding: 1rem 1.2rem 1.3rem; gap: 0.5rem; }
  .la-actions .la-btn { flex: 1 1 auto; min-width: 0; justify-content: center; }
  .la-output { padding: 1.1rem 1.2rem; }
  .la-output .prompt-text { font-size: 0.8rem; padding: 0.8rem 0.9rem; }

  /* Myth flip cards — tighten so they're not huge on mobile */
  .la-myths { gap: 0.7rem; }
  .la-myth { height: 300px; }
  .la-myth-face { padding: 1.1rem 1.15rem; }
  .la-myth-front .claim { font-size: 0.98rem; line-height: 1.3; }
  .la-myth-back p { font-size: 0.86rem; }
  .la-myth-back .src { font-size: 0.68rem; }

  /* For-parents: rule block */
  .la-fp-rule { padding: 1.6rem 1.2rem; }
  .la-fp-rule-quote { font-size: 1.5rem !important; }
  .la-fp-rule-body { font-size: 0.92rem !important; }

  /* For-parents: decisions */
  .la-fp-decision { padding: 1.2rem 0; gap: 0.7rem; grid-template-columns: 36px 1fr; }
  .la-fp-decision-num { font-size: 1.6rem !important; padding-top: 0.2rem; }
  .la-fp-decision-body h3 { font-size: 1.1rem !important; line-height: 1.2; }
  .la-fp-scenario { font-size: 0.88rem !important; padding: 0.55rem 0.8rem !important; }

  /* For-parents: age cards */
  .la-fp-age-grid { gap: 0.7rem; }
  .la-fp-age-head { padding: 0.95rem 1.1rem 0.6rem; gap: 0.6rem; }
  .la-fp-age-range { font-size: 0.72rem; padding: 0.15rem 0.5rem; }
  .la-fp-age-title { padding: 0 1.1rem 1rem; font-size: 0.98rem; }
  .la-fp-age-body { font-size: 0.88rem; }
  .la-fp-age-card[aria-expanded="true"] .la-fp-age-body { padding: 0.9rem 1.1rem 1.1rem; }

  /* For-parents: tool cards */
  .la-fp-tool-head { padding: 1.1rem 1.2rem 0.5rem; }
  .la-fp-tool-title { font-size: 1.12rem !important; }
  .la-fp-tool-desc { font-size: 0.88rem !important; }
  .la-fp-tool-text {
    padding: 1rem 1.1rem;
    font-size: 0.78rem;
    max-height: 280px;
  }
  .la-fp-tool-controls {
    padding: 0.85rem 1.2rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.55rem;
  }
  .la-fp-tool-controls .la-btn { width: 100%; justify-content: center; }

  /* For-parents: scenarios */
  .la-fp-scenario-card { padding: 1.2rem 1.2rem; }
  .la-fp-scenario-card h3 { font-size: 1.1rem; }
  .la-fp-scenario-card p { font-size: 0.9rem; line-height: 1.55; }

  /* For-parents: starters — tighten number indent */
  .la-fp-starters li {
    padding: 0.85rem 1rem 0.85rem 2.5rem;
    font-size: 0.93rem;
  }
  .la-fp-starters li::before {
    left: 0.6rem;
    font-size: 0.76rem;
  }

  /* Crisis box */
  .la-crisis-box { padding: 1rem 1.1rem; font-size: 0.9rem; }
  .la-crisis-box-head { font-size: 0.96rem; }

  /* Glossary TOC */
  .la-glossary-toc {
    padding: 1rem 1.1rem;
    gap: 0.35rem;
    margin: 1.5rem 0;
  }
  .la-glossary-toc a { font-size: 0.8rem; padding: 0.3rem 0.6rem; }

  /* Glossary term cards */
  .la-term { padding: 1.2rem 0; }
  .la-term h3 { font-size: 1.1rem; }
  .la-term-quick { font-size: 0.92rem; padding: 0.55rem 0.8rem; }
  .la-term p { font-size: 0.9rem; line-height: 1.55; }

  /* Provider pills row — ensure wrap cleanly */
  .la-providers { gap: 0.4rem; padding-top: 0.9rem; }
  .la-providers-label { width: 100%; margin-right: 0; margin-bottom: 0.25rem; }
  .la-providers a { padding: 0.5rem 0.75rem; font-size: 0.82rem; min-height: 40px; }
  .la-providers-note { font-size: 0.78rem; }

  /* Gloss popup */
  .la-gloss-popup { width: calc(100vw - 2rem); padding: 0.85rem 0.95rem; font-size: 0.85rem; }
  .la-gloss-popup-head strong { font-size: 0.92rem; }
  .la-gloss-popup-desc { font-size: 0.85rem; }

  /* Buttons min-tap */
  .la-btn { min-height: 44px; padding: 0.65rem 1rem; font-size: 0.9rem; }
  .la-btn-large { font-size: 1rem; padding: 0.9rem 1.3rem; }

  /* Lab-style light navs (learnai) */
  .la-nav .nav-inner {
    padding: 0.8rem 1rem;
    gap: 0.6rem;
    flex-wrap: wrap;
  }
  .la-nav-links {
    width: 100%;
    gap: 0.8rem;
    font-size: 0.8rem;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
  .la-nav-links li { line-height: 1; }
  .la-brand-small { display: none; }
  .la-brand { font-size: 0.9rem; gap: 0.5rem; }
  .la-brand-mark { width: 28px; height: 28px; font-size: 0.7rem; }
}

/* =========================================
   <la-audio> — narration player
   ========================================= */
la-audio,
.la-audio {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  margin: 0.6rem 0 1.2rem;
  font-family: inherit;
  max-width: 480px;
}
.la-audio-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--blue-50);
  border: 1px solid var(--blue-500);
  color: var(--blue-700);
  border-radius: 999px;
  padding: 0.45rem 0.9rem 0.45rem 0.7rem;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  align-self: flex-start;
}
.la-audio-btn:hover { background: #dbeafe; }
.la-audio-btn:active { transform: scale(0.98); }
.la-audio-btn:focus-visible { outline: 2px solid var(--blue-500); outline-offset: 2px; }
.la-audio-icon-play, .la-audio-icon-pause {
  flex-shrink: 0;
}
.la-audio-label { letter-spacing: 0.01em; }
.la-audio-time {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--blue-600);
  margin-left: 0.2rem;
}
.la-audio-controls {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  font-size: 0.78rem;
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  color: var(--slate-600);
}
.la-audio-scrub {
  flex: 1;
  min-width: 0;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--slate-200);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.la-audio-scrub::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--blue-600);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.2);
}
.la-audio-scrub::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--blue-600);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.2);
}
.la-audio-current { color: var(--slate-800); font-weight: 600; }
.la-audio-sep { color: var(--slate-400); }
.la-audio-duration { color: var(--slate-500); }
.la-audio-speed {
  background: white;
  border: 1px solid var(--slate-300);
  border-radius: 4px;
  padding: 0.15rem 0.45rem;
  color: var(--slate-700);
  font-size: 0.74rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  margin-left: auto;
  flex-shrink: 0;
}
.la-audio-speed:hover { background: var(--slate-100); }

@media (max-width: 720px) {
  .la-audio-controls { flex-wrap: wrap; gap: 0.4rem 0.55rem; }
  .la-audio-speed { order: 1; }
}

/* Extra tightening on very narrow (≤380px) */
@media (max-width: 380px) {
  .la-hero h1 { font-size: 1.65rem !important; }
  .la-fp-rule-quote { font-size: 1.35rem !important; }
  .la-fp-decision-num { font-size: 1.4rem !important; }
  .la-fp-decision { grid-template-columns: 30px 1fr; gap: 0.55rem; }
  .la-nav-links { font-size: 0.75rem; gap: 0.6rem; }
}

/* =========================================
   /learnai/spot-the-fake — deepfake awareness page
   ========================================= */
.lf-hero-illus {
  margin: 1.4rem 0 0.6rem;
  padding: 0;
}
.lf-hero-illus img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 720px;
  margin: 0 auto;
  border-radius: 8px;
}

/* Real-fraud fact boxes (paired) */
.lf-fact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.4rem 0;
}
.lf-fact-box {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  border-left: 4px solid #dc2626;
  border-radius: 0 8px 8px 0;
  padding: 1.1rem 1.3rem 1rem;
}
.lf-fact-box-amber {
  background: #fffbeb;
  border-color: #fcd34d;
  border-left-color: #d97706;
}
.lf-fact-eyebrow {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #991b1b;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.lf-fact-box-amber .lf-fact-eyebrow { color: #92400e; }
.lf-fact-h {
  font-size: 1.05rem;
  margin: 0 0 0.6rem;
  color: var(--slate-900);
  line-height: 1.3;
}
.lf-fact-box p {
  font-size: 0.94rem;
  line-height: 1.55;
  color: var(--slate-700);
  margin: 0 0 0.55rem;
}
.lf-fact-box p:last-child { margin-bottom: 0; }
.lf-fact-src { font-size: 0.82rem !important; color: var(--slate-500) !important; }
.lf-fact-src a { color: var(--slate-600); }

/* Four-flavors blocks */
.lf-flavor {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--slate-200);
}
.lf-flavor:last-child { border-bottom: none; }
.lf-flavor-num {
  font-family: var(--display, Georgia, "Times New Roman", serif);
  font-size: 2.6rem;
  font-weight: 300;
  line-height: 1;
  color: var(--blue-500);
  letter-spacing: -0.04em;
}
.lf-flavor-body h3 {
  font-size: 1.35rem;
  margin: 0 0 0.2rem;
  color: var(--slate-900);
}
.lf-flavor-sub {
  font-style: italic;
  color: var(--slate-500);
  font-size: 0.95rem;
  margin: 0 0 0.9rem;
}
.lf-flavor-body p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--slate-700);
  margin: 0 0 0.9rem;
}
.lf-flavor-illus {
  margin: 0.8rem 0 1.1rem;
  padding: 0;
}
.lf-flavor-illus img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 520px;
  border-radius: 6px;
}
.lf-defense-list {
  margin: 0.6rem 0 0;
  padding-left: 1.2rem;
  list-style: disc;
}
.lf-defense-list li {
  font-size: 0.97rem;
  line-height: 1.6;
  color: var(--slate-700);
  margin-bottom: 0.7rem;
}
.lf-defense-list li:last-child { margin-bottom: 0; }
.lf-defense-list li strong { color: var(--slate-900); }

/* Spot-the-tells card grid */
.lf-tell-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1.4rem 0;
}
.lf-tell-card {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1.1rem 1.2rem 1rem;
}
.lf-tell-num {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--blue-600);
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.lf-tell-card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
  color: var(--slate-900);
  line-height: 1.3;
}
.lf-tell-quick {
  font-size: 0.93rem;
  color: var(--slate-800);
  font-weight: 500;
  padding: 0.55rem 0.75rem;
  background: var(--slate-50);
  border-left: 3px solid var(--blue-500);
  border-radius: 0 4px 4px 0;
  margin: 0 0 0.7rem;
}
.lf-tell-card > p:not(.lf-tell-quick) {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--slate-700);
  margin: 0;
}

/* Defense habits grid */
.lf-defense-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1rem;
  margin: 1.4rem 0 0.4rem;
}
.lf-defense-card {
  background: white;
  border: 1px solid var(--slate-200);
  border-left: 3px solid var(--blue-500);
  border-radius: 0 6px 6px 0;
  padding: 1rem 1.1rem;
}
.lf-defense-icon {
  font-size: 1.6rem;
  color: var(--blue-600);
  line-height: 1;
  margin-bottom: 0.4rem;
  font-weight: 600;
}
.lf-defense-card h3 {
  font-size: 1.02rem;
  margin: 0 0 0.5rem;
  color: var(--slate-900);
  line-height: 1.3;
}
.lf-defense-card p {
  font-size: 0.93rem;
  line-height: 1.55;
  color: var(--slate-700);
  margin: 0;
}

/* Three questions adapted */
.lf-tq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin: 1.4rem 0 0.4rem;
}
.lf-tq-card {
  background: var(--blue-50);
  border-left: 4px solid var(--blue-500);
  border-radius: 0 8px 8px 0;
  padding: 1.1rem 1.3rem 1rem;
}
.lf-tq-num {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--blue-700);
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.lf-tq-card h3 {
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
  color: var(--slate-900);
  line-height: 1.3;
}
.lf-tq-card p {
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--slate-700);
  margin: 0;
}

/* Interactive spot-the-tells exhibit */
.lf-tells-exhibit { margin: 1.4rem 0 0.6rem; }
.lf-tells-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.7rem;
}
.lf-tells-card {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 0.6rem 0.65rem 0.7rem;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  color: inherit;
}
.lf-tells-card:hover {
  border-color: var(--blue-500);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -10px rgb(37 99 235 / 0.25);
}
.lf-tells-card:focus-visible { outline: 2px solid var(--blue-500); outline-offset: 2px; }
.lf-tells-card-thumb {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 5px;
  margin-bottom: 0.4rem;
  background: var(--slate-100);
}
.lf-tells-card-cat {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-600);
  font-weight: 700;
}
.lf-tells-card-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--slate-900);
  line-height: 1.3;
}
.lf-tells-card-cta {
  font-size: 0.78rem;
  color: var(--slate-500);
  margin-top: auto;
}

/* Modal/lightbox */
.lf-tells-modal {
  position: fixed;
  inset: 0;
  background: rgb(15 23 42 / 0.7);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  overflow-y: auto;
}
.lf-tells-modal.visible { display: flex; }
.lf-tells-modal-card {
  background: white;
  border-radius: 10px;
  max-width: 720px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 30px 80px -20px rgb(0 0 0 / 0.6);
}
.lf-tells-modal-close {
  position: absolute;
  top: 0.6rem;
  right: 0.7rem;
  background: rgb(255 255 255 / 0.85);
  border: 1px solid var(--slate-200);
  color: var(--slate-700);
  font-size: 1.4rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 2;
  line-height: 1;
}
.lf-tells-modal-close:hover { background: white; color: var(--slate-900); }
.lf-tells-modal-imgwrap {
  position: relative;
  width: 100%;
  max-width: 50vh;            /* keep square + reasonable size on tall viewports */
  aspect-ratio: 1 / 1;        /* match the source images (all 512x512) */
  margin: 0 auto;
  background: var(--slate-100);
  border-radius: 10px 10px 0 0;
  overflow: hidden;
}
.lf-tells-modal-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;          /* image is square inside square; no letterbox */
}
.lf-tells-modal-hotspot {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.lf-tells-modal-hotspot.visible { opacity: 1; }
.lf-tells-modal-hotspot circle {
  fill: none;
  stroke: #ef4444;
  stroke-width: 1.6;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 0 6px rgb(239 68 68 / 0.7));
}
.lf-tells-modal-body {
  padding: 1.1rem 1.4rem;
}
.lf-tells-modal-cat {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-600);
  font-weight: 700;
  margin-bottom: 0.35rem;
}
.lf-tells-modal-title {
  font-size: 1.3rem;
  margin: 0 0 0.7rem;
  color: var(--slate-900);
  line-height: 1.25;
}
.lf-tells-reveal { margin-bottom: 0.9rem; }
.lf-tells-modal-detail {
  font-size: 0.97rem;
  line-height: 1.6;
  color: var(--slate-700);
  display: none;
  background: var(--blue-50);
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--blue-500);
  border-radius: 0 5px 5px 0;
}
.lf-tells-modal-detail.visible { display: block; }
.lf-tells-modal-detail strong { color: var(--slate-900); }
.lf-tells-modal-detail em { color: var(--slate-600); font-style: italic; }
.lf-tells-modal-nav {
  padding: 0.9rem 1.4rem 1.2rem;
  border-top: 1px solid var(--slate-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  background: var(--slate-50);
  border-radius: 0 0 10px 10px;
}
.lf-tells-modal-counter {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.78rem;
  color: var(--slate-500);
  letter-spacing: 0.08em;
}

@media (max-width: 720px) {
  .lf-tells-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0.5rem; }
  .lf-tells-card { padding: 0.5rem; }
  .lf-tells-card-name { font-size: 0.85rem; }
  .lf-tells-modal { padding: 0.5rem; }
  .lf-tells-modal-body { padding: 0.95rem 1.1rem; }
  .lf-tells-modal-title { font-size: 1.15rem; }
  .lf-tells-modal-imgwrap { max-width: 70vw; }
  .lf-tells-modal-nav { padding: 0.7rem 1rem 1rem; }
}

/* Big takeaway block (matches journey treatment but uses adult-site palette) */
.lf-takeaway {
  margin: 1.4rem 0 0.4rem;
  padding: 1.2rem 1.4rem 1.3rem;
  background: var(--blue-50);
  border: 1px solid var(--blue-500);
  border-left: 5px solid var(--blue-500);
  border-radius: 0 8px 8px 0;
}
.lf-takeaway-eyebrow {
  display: block;
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-700);
  font-weight: 700;
  margin-bottom: 0.7rem;
}
.lf-takeaway ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.lf-takeaway ul li {
  position: relative;
  padding: 0.4rem 0 0.4rem 1.5rem;
  color: var(--slate-800);
  font-size: 1rem;
  line-height: 1.55;
}
.lf-takeaway ul li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0.4rem;
  color: var(--blue-700);
  font-weight: 700;
}
.lf-takeaway ul li strong { color: var(--slate-900); font-weight: 700; }

@media (max-width: 720px) {
  .lf-fact-row { grid-template-columns: 1fr; }
  .lf-flavor { grid-template-columns: 44px 1fr; gap: 0.85rem; padding: 1.2rem 0; }
  .lf-flavor-num { font-size: 2rem; }
  .lf-flavor-body h3 { font-size: 1.15rem; }
  .lf-tell-grid { grid-template-columns: 1fr; }
  .lf-defense-grid { grid-template-columns: 1fr; }
  .lf-takeaway { padding: 1rem 1.1rem 1.1rem; }
  .lf-takeaway ul li { font-size: 0.95rem; }
}

/* =========================================
   /learnai/under-the-hood — mechanism deep-dive components
   ========================================= */

.la-eyebrow-small {
  display: inline-block;
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 0.6rem;
}

/* M1 — Tokenization demo */
.luh-tok {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1.2rem 1.3rem;
  margin: 1.2rem 0;
}
.luh-tok-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--slate-200);
}
.luh-tok-btn {
  background: var(--slate-100);
  color: var(--slate-700);
  border: 1px solid var(--slate-200);
  border-radius: 5px;
  padding: 0.35rem 0.7rem;
  font-size: 0.86rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
}
.luh-tok-btn:hover { background: var(--slate-200); color: var(--slate-900); }
.luh-tok-btn.active {
  background: var(--blue-600);
  color: white;
  border-color: var(--blue-600);
}
.luh-tok-btn:focus { outline: 2px solid var(--blue-500); outline-offset: 2px; }

.luh-tok-stage { display: flex; flex-direction: column; gap: 0.7rem; }
.luh-tok-row {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  flex-wrap: wrap;
}
.luh-tok-row-label {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-500);
  min-width: 5rem;
}
.luh-tok-input-display {
  font-family: var(--display, Georgia, "Times New Roman", serif);
  font-size: 1.5rem;
  color: var(--slate-800);
  padding: 0.3rem 0.6rem;
  background: var(--slate-50);
  border-radius: 4px;
  letter-spacing: 0.01em;
}

.luh-tok-chunks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.luh-tok-chunk {
  font-family: var(--display, Georgia, "Times New Roman", serif);
  font-size: 1.3rem;
  background: white;
  border: 2px solid;
  padding: 0.3rem 0.65rem;
  border-radius: 5px;
  letter-spacing: 0.01em;
  /* Color cycling so consecutive chunks read as distinct */
  --chunk-colors: 0 #2563eb #eff6ff, 1 #c25e00 #fff8e7, 2 #047857 #f0fdf4, 3 #7c3aed #f5f3ff, 4 #be123c #fff1f2;
}
.luh-tok-chunk:nth-child(5n+1) { border-color: #2563eb; background: #eff6ff; color: #1e3a8a; }
.luh-tok-chunk:nth-child(5n+2) { border-color: #c25e00; background: #fff8e7; color: #7c2d12; }
.luh-tok-chunk:nth-child(5n+3) { border-color: #047857; background: #f0fdf4; color: #064e3b; }
.luh-tok-chunk:nth-child(5n+4) { border-color: #7c3aed; background: #f5f3ff; color: #4c1d95; }
.luh-tok-chunk:nth-child(5n+5) { border-color: #be123c; background: #fff1f2; color: #831843; }

.luh-tok-stats {
  margin-top: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.95rem;
  color: var(--slate-700);
}
.luh-tok-stats strong { font-size: 1.4rem; color: var(--slate-900); font-family: var(--display, Georgia, serif); }
.luh-tok-arrow { color: var(--slate-400); font-weight: 300; font-size: 1.2rem; }

.luh-tok-explain {
  background: var(--amber-50);
  border-left: 3px solid var(--amber-500);
  padding: 0.7rem 0.95rem;
  border-radius: 0 5px 5px 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--slate-800);
  display: none;
  margin-top: 0.4rem;
}
.luh-tok-explain.visible { display: block; }
.luh-tok-explain em { color: var(--amber-600); font-style: italic; }
.luh-tok-explain strong {
  font-family: var(--display, Georgia, serif);
  background: rgba(217, 119, 6, 0.12);
  padding: 0 0.25rem;
  border-radius: 3px;
  font-weight: 700;
}

.luh-tok-custom {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.8rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--slate-200);
}
.luh-tok-custom-input {
  font-size: 1rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--slate-300);
  border-radius: 5px;
  font-family: inherit;
  background: white;
}
.luh-tok-custom-input:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.15);
}

@media (max-width: 720px) {
  .luh-tok { padding: 1rem 1rem; }
  .luh-tok-input-display { font-size: 1.2rem; }
  .luh-tok-chunk { font-size: 1.1rem; padding: 0.25rem 0.55rem; }
  .luh-tok-row-label { min-width: 4rem; font-size: 0.66rem; }
}

.la-aside-card {
  background: var(--blue-50);
  border-left: 3px solid var(--blue-500);
  border-radius: 0 6px 6px 0;
  padding: 1rem 1.2rem;
  margin: 1.6rem 0 0.4rem;
}
.la-aside-card .la-aside-eyebrow {
  display: block;
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-700);
  margin-bottom: 0.4rem;
}
.la-aside-card p { margin: 0; color: var(--slate-800); font-size: 0.97rem; line-height: 1.55; }

/* M1 — Embeddings 2D map */
.luh-embed-viz {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1rem 1.1rem 0.9rem;
  margin: 1.4rem 0 0.4rem;
}
.luh-embed-svg {
  width: 100%;
  height: auto;
  display: block;
  font-family: var(--display, Georgia, "Times New Roman", serif);
}
.luh-embed-svg .luh-word {
  font-size: 13px;
  fill: var(--slate-700);
  font-weight: 500;
}
.luh-embed-svg .luh-cluster[data-cluster="animals"] .luh-word { fill: #b45309; }
.luh-embed-svg .luh-cluster[data-cluster="vehicles"] .luh-word { fill: #1e40af; }
.luh-embed-svg .luh-cluster[data-cluster="foods"] .luh-word { fill: #047857; }
.luh-embed-legend {
  font-size: 0.84rem;
  color: var(--slate-600);
  margin-top: 0.6rem;
  line-height: 1.5;
}

/* M1 — Embedding arithmetic */
.luh-arith {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1.1rem 1.2rem;
  margin: 1.2rem 0;
  text-align: center;
}
.luh-arith-eq {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-size: 1.25rem;
  font-family: var(--display, Georgia, "Times New Roman", serif);
  color: var(--slate-800);
  margin-bottom: 0.9rem;
}
.luh-arith-word {
  background: var(--blue-50);
  color: #1e3a8a;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-weight: 500;
}
.luh-arith-op {
  color: var(--slate-500);
  font-weight: 600;
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
}
.luh-arith-blank {
  background: var(--slate-100);
  color: var(--slate-500);
  padding: 0.2rem 0.7rem;
  border-radius: 4px;
  min-width: 3rem;
  display: inline-block;
  border: 1px dashed var(--slate-300);
  transition: all 0.25s ease;
}
.luh-arith-blank.luh-arith-revealed {
  background: var(--green-50, #f0fdf4);
  color: var(--green-800, #166534);
  border: 1px solid var(--green-300, #86efac);
  border-style: solid;
}
.luh-arith-btn { margin-top: 0.2rem; }
.luh-arith-btn:disabled {
  opacity: 0.55;
  cursor: default;
}

/* M2 — Self-attention demo */
.luh-attn {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1.4rem 1.4rem 1.2rem;
  margin: 1.2rem 0;
}
.luh-attn-sentence {
  font-family: var(--display, Georgia, "Times New Roman", serif);
  font-size: 1.4rem;
  line-height: 1.7;
  color: var(--slate-800);
  margin-bottom: 0.9rem;
}
.luh-attn-tok {
  display: inline-block;
  padding: 0.05rem 0.18rem;
  border-radius: 3px;
  transition: background-color 0.25s ease, color 0.25s ease;
}
.luh-attn-tok.luh-attn-target {
  background: var(--amber-50);
  color: var(--amber-800, #92400e);
  cursor: pointer;
  border-bottom: 2px solid var(--amber-500);
  font-weight: 500;
}
.luh-attn-tok.luh-attn-target:hover,
.luh-attn-tok.luh-attn-target:focus {
  background: var(--amber-100, #fef3c7);
  outline: none;
}
.luh-attn-tok.luh-attn-active {
  background: var(--amber-500) !important;
  color: white !important;
  border-bottom-color: var(--amber-500) !important;
}
.luh-attn-tok.luh-attn-weighted {
  background-color: rgb(59 130 246 / calc(var(--luh-attn) * 0.85));
  color: rgb(15 23 42 / calc(0.6 + var(--luh-attn) * 0.4));
}
.luh-attn-caption {
  font-size: 0.92rem;
  color: var(--slate-600);
  line-height: 1.55;
  background: var(--slate-50);
  padding: 0.7rem 0.9rem;
  border-radius: 6px;
  border-left: 3px solid var(--slate-300);
}
.luh-attn-caption em {
  color: var(--blue-700);
  font-style: normal;
  font-weight: 600;
}

/* M3 — Three-stage training */
.luh-stages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1.4rem 0 0.4rem;
}
.luh-stage {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
}
.luh-stage-illus {
  display: block;
  width: 100%;
  height: auto;
  max-width: 200px;
  margin: 0 auto 0.7rem;
  border-radius: 6px;
}
.luh-stage-num {
  font-family: var(--display, Georgia, "Times New Roman", serif);
  font-size: 2.4rem;
  font-weight: 300;
  line-height: 1;
  color: var(--blue-500);
  margin-bottom: 0.4rem;
}
.luh-stage-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--slate-900);
  margin-bottom: 0.2rem;
}
.luh-stage-sub {
  font-style: italic;
  font-size: 0.92rem;
  color: var(--slate-600);
  margin-bottom: 0.7rem;
}
.luh-stage-body p {
  font-size: 0.94rem;
  color: var(--slate-700);
  line-height: 1.55;
  margin: 0 0 0.6rem;
}
.luh-stage-body p:last-child { margin-bottom: 0; }

/* M4 — RAG comparison */
.luh-rag {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.4rem 0 0.4rem;
}
.luh-rag-side {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1rem 1.1rem;
}
.luh-rag-with { border-color: var(--blue-300, #93c5fd); background: var(--blue-50); }
.luh-rag-eyebrow {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate-500);
  margin-bottom: 0.4rem;
}
.luh-rag-with .luh-rag-eyebrow { color: var(--blue-700); }
.luh-rag-side h4 {
  font-size: 1rem;
  margin: 0 0 0.7rem;
  color: var(--slate-900);
  line-height: 1.4;
}
.luh-rag-flow { display: flex; flex-direction: column; gap: 0.5rem; }
.luh-rag-step {
  background: var(--slate-50);
  border-radius: 5px;
  padding: 0.55rem 0.7rem;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--slate-700);
}
.luh-rag-with .luh-rag-step { background: white; }
.luh-rag-step-aug {
  background: var(--amber-50) !important;
  border: 1px solid var(--amber-200, #fde68a);
}
.luh-rag-step-label {
  display: block;
  font-size: 0.72rem;
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  color: var(--slate-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.2rem;
}
.luh-rag-arrow {
  text-align: center;
  color: var(--slate-400);
  font-size: 1.1rem;
  line-height: 1;
}

/* M5 — Tool use comparison */
.luh-tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.4rem 0 0.4rem;
}
.luh-tools-side {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1rem 1.1rem;
}
.luh-tools-with { border-color: #93c5fd; background: var(--blue-50); }
.luh-tools-eyebrow {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate-500);
  margin-bottom: 0.4rem;
}
.luh-tools-with .luh-tools-eyebrow { color: var(--blue-700); }
.luh-tools-side h4 {
  font-size: 1rem;
  margin: 0 0 0.7rem;
  color: var(--slate-900);
  line-height: 1.4;
}
.luh-tools-msg {
  font-size: 0.88rem;
  line-height: 1.5;
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.45rem;
}
.luh-tools-user {
  background: var(--slate-100);
  color: var(--slate-800);
  font-style: italic;
}
.luh-tools-ai {
  background: var(--blue-50);
  color: var(--slate-800);
  border-left: 3px solid var(--blue-500);
}
.luh-tools-with .luh-tools-ai { background: white; }
.luh-tools-tool {
  background: var(--amber-50);
  color: var(--slate-700);
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.78rem;
  border: 1px dashed #fde68a;
}
.luh-tools-result {
  margin-top: 0.55rem;
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  font-size: 0.86rem;
  line-height: 1.5;
}
.luh-tools-result-bad {
  background: #fef2f2;
  border-left: 3px solid #f87171;
  color: #7f1d1d;
}
.luh-tools-result-good {
  background: var(--green-50);
  border-left: 3px solid var(--green-500);
  color: #166534;
}

/* M6 — Lost in the middle attention curve */
.luh-attn-curve {
  background: white;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 1.2rem 1.3rem;
  margin: 1.2rem 0;
}
.luh-attn-curve-label {
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate-500);
  margin-bottom: 0.6rem;
}
.luh-attn-curve-track {
  position: relative;
  height: 90px;
  background: linear-gradient(
    to right,
    var(--blue-500) 0%,
    rgba(59, 130, 246, 0.18) 35%,
    rgba(59, 130, 246, 0.10) 50%,
    rgba(59, 130, 246, 0.18) 65%,
    var(--blue-500) 100%
  );
  border-radius: 6px;
  margin-bottom: 0.7rem;
}
.luh-attn-curve-fill {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.5);
  pointer-events: none;
  border-radius: inherit;
}
.luh-attn-curve-marker {
  position: absolute;
  bottom: 8px;
  font-size: 0.72rem;
  font-family: var(--mono, ui-monospace, "SF Mono", Menlo, monospace);
  color: var(--slate-700);
  background: rgba(255, 255, 255, 0.85);
  padding: 0.18rem 0.4rem;
  border-radius: 3px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.luh-attn-curve-marker-start { left: 0.5rem; }
.luh-attn-curve-marker-mid { left: 50%; transform: translateX(-50%); color: var(--slate-500); }
.luh-attn-curve-marker-end { right: 0.5rem; }
.luh-attn-curve-caption {
  font-size: 0.86rem;
  color: var(--slate-600);
  line-height: 1.5;
}

@media (max-width: 720px) {
  .luh-rag { grid-template-columns: 1fr; }
  .luh-stages { grid-template-columns: 1fr; }
  .luh-tools { grid-template-columns: 1fr; }
  .luh-arith-eq { font-size: 1.1rem; gap: 0.4rem; }
  .luh-attn-sentence { font-size: 1.2rem; line-height: 1.65; }
  .luh-embed-svg { font-size: 12px; }
  .luh-attn-curve-marker { font-size: 0.65rem; padding: 0.15rem 0.3rem; }
  .luh-attn-curve-marker-mid { font-size: 0.6rem; }
}