:root {
  --bg: #f4f1ea;
  --bg-soft: #ece8df;
  --paper: #fbfaf6;
  --ink: #252720;
  --muted: #686b62;
  --line: rgba(37, 39, 32, 0.13);
  --accent: #66745e;
  --accent-deep: #465342;
  --accent-soft: #dfe6d9;
  --warm: #b97954;
  --history: #39433b;
  --history-soft: #465148;
  --ok: #45614b;
  --bad: #8b6258;
  --shadow: 0 18px 55px rgba(42, 44, 36, 0.08);
  --radius: 28px;
  --radius-sm: 18px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 74px; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(37,39,32,.035) 0.7px, transparent 0.7px);
  background-size: 18px 18px;
  opacity: .6;
  z-index: -1;
}

a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(20px, 4vw, 56px);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.site-header.is-scrolled { border-color: var(--line); }
.brand {
  font-weight: 800;
  letter-spacing: -.03em;
  text-decoration: none;
}
.mini-nav { display: flex; gap: 22px; }
.mini-nav a {
  font-size: .88rem;
  color: var(--muted);
  text-decoration: none;
}
.mini-nav a:hover { color: var(--ink); }

.wrap {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}
.section {
  position: relative;
  padding: clamp(78px, 10vw, 88px) 0;
  overflow: hidden;
}
.section--soft { background: var(--bg-soft); }
.section--hero { min-height: calc(100vh - 66px); display: grid; place-items: center; }
.section--history { background: var(--history); color: #f7f3e9; }
.section--memory { background: #efebe2; }
.section--final { padding-top: 70px; }

.hero__inner { position: relative; z-index: 1; max-width: 950px; text-align: center; }
.hero__glow { position: absolute; border-radius: 50%; filter: blur(2px); opacity: .7; }
.hero__glow--one { width: 420px; height: 420px; background: #dfe5d7; left: -130px; top: 10%; }
.hero__glow--two { width: 300px; height: 300px; background: #eadfd2; right: -60px; bottom: 4%; }
.eyebrow, .kicker {
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: .13em;
  font-size: .75rem;
  font-weight: 800;
  color: var(--accent-deep);
}
.kicker--light { color: #cbd5c8; }
.kicker--center { text-align: center; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { letter-spacing: -.04em; line-height: 1.08; }
h1 { font-size: clamp(3.4rem, 9vw, 7.8rem); margin-bottom: 36px; }
h2 { font-size: clamp(2.2rem, 4.8vw, 4.6rem); margin-bottom: 24px; }
h3 { font-size: 1.15rem; }
.lead, .section-intro { color: var(--muted); font-size: clamp(1.05rem, 1.6vw, 1.25rem); max-width: 760px; }
.section-intro { margin-bottom: 44px; }
.section-intro--light { color: #d7ddd5; }

.hero__tease { max-width: 690px; margin: -12px auto 30px; color: var(--muted); font-size: clamp(1rem, 1.7vw, 1.18rem); }
.hero-duel { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: clamp(12px, 3vw, 30px); max-width: 780px; margin: 0 auto 24px; }
.hero-duel__word { padding: 20px 24px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: rgba(251,250,246,.58); box-shadow: 0 12px 36px rgba(42,44,36,.04); font: 700 clamp(2rem, 5vw, 3.8rem)/1 Georgia, "Times New Roman", serif; }
.hero-duel__or { color: var(--muted); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero__question { margin: 0 auto 24px; color: var(--muted); font-size: .92rem; }
.scroll-link { display: inline-flex; gap: 8px; align-items: center; color: var(--ink); font-weight: 700; text-decoration: none; border-bottom: 1px solid rgba(37,39,32,.25); padding-bottom: 4px; }
.scroll-link--hero { margin-top: 4px; }
.scroll-link__arrow { display: inline-block; animation: nudge-down 1.8s ease-in-out infinite; }
@keyframes nudge-down { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(5px); } }

.section--answer {
  min-height: min(760px, 86vh);
  display: grid;
  place-items: center;
  background: var(--bg-soft);
}
.answer-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: .72;
}
.answer-glow--one {
  width: 360px;
  height: 360px;
  left: -120px;
  top: -90px;
  background: rgba(201, 213, 193, .56);
}
.answer-glow--two {
  width: 290px;
  height: 290px;
  right: -80px;
  bottom: -70px;
  background: rgba(226, 205, 190, .55);
}
.answer-reveal {
  position: relative;
  z-index: 1;
  max-width: 960px;
  text-align: center;
}
.answer-reveal h2 {
  margin-bottom: clamp(30px, 5vw, 52px);
}
.answer-duel {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  align-items: stretch;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: clamp(22px, 3vw, 34px);
  background: rgba(251, 250, 246, .82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}
.answer-duel__divider {
  width: 1px;
  background: var(--line);
}
.answer-duel__item {
  position: relative;
  min-height: 250px;
  padding: clamp(32px, 5vw, 52px) clamp(18px, 2.5vw, 28px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.answer-duel__item strong {
  font: 700 clamp(3.1rem, 6.4vw, 5.5rem)/.95 Georgia, "Times New Roman", serif;
  letter-spacing: .014em;
  font-kerning: normal;
}
.answer-duel__item small {
  margin-top: 17px;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.answer-duel__mark {
  position: absolute;
  top: 22px;
  right: 24px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1;
}
.answer-duel__item--right strong { color: var(--ok); }
.answer-duel__item--right .answer-duel__mark {
  color: var(--ok);
  background: rgba(69, 97, 75, .11);
  border: 1px solid rgba(69, 97, 75, .22);
}
.answer-duel__item--wrong strong {
  color: var(--bad);
  text-decoration: line-through;
  text-decoration-thickness: .045em;
  text-decoration-color: rgba(139, 98, 88, .48);
}
.answer-duel__item--wrong .answer-duel__mark {
  color: var(--bad);
  background: rgba(139, 98, 88, .09);
  border: 1px solid rgba(139, 98, 88, .19);
}
.answer-reveal__example {
  margin: 30px auto 0;
  font: 700 clamp(1.15rem, 2vw, 1.45rem)/1.35 Georgia, "Times New Roman", serif;
}
.answer-reveal__tease {
  max-width: 680px;
  margin: 14px auto 20px;
  color: var(--muted);
  font-size: clamp(.98rem, 1.6vw, 1.1rem);
}
.answer-reveal .text-link { margin-top: 0; }

.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(40px, 8vw, 110px); align-items: center; }
.split--wide { grid-template-columns: 1fr 1fr; }
.note { margin-top: 26px; padding: 16px 18px; border-left: 3px solid var(--accent); background: rgba(102,116,94,.09); border-radius: 0 12px 12px 0; font-weight: 700; }

.logic-card {
  padding: clamp(28px, 4vw, 46px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}
.logic-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.logic-row span { padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; background: #fffdfa; }
.logic-arrow { color: var(--muted); font-size: 1.7rem; margin: 10px 0; }
.logic-question { font: 700 clamp(1.7rem, 3vw, 2.5rem)/1.1 Georgia, "Times New Roman", serif; }
.logic-answer { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 1.05rem; }

.morph-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.morph-card { padding: 30px; min-height: 210px; display: flex; flex-direction: column; justify-content: flex-end; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.morph-card--main { background: var(--accent-deep); color: #fff; }
.morph-card__label { margin-bottom: auto; color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.morph-card--main .morph-card__label { color: #dce3d9; }
.morph-card strong { font: 700 clamp(2rem, 4vw, 3.7rem)/1 Georgia, "Times New Roman", serif; }
.morph-card small { margin-top: 11px; color: var(--muted); }
.accent-letter { color: var(--warm); }
.compare-strip { margin-top: 22px; display: flex; justify-content: space-between; gap: 20px; padding: 18px 22px; border: 1px solid var(--line); border-radius: 16px; color: var(--muted); background: rgba(251,250,246,.55); }

.word-stack { display: grid; gap: 8px; max-width: 420px; justify-self: center; width: 100%; }
.word-stack span { display: block; padding: 11px 22px; border-bottom: 1px solid var(--line); font: 700 clamp(2rem, 5vw, 4.2rem)/1.05 Georgia, "Times New Roman", serif; }
.word-stack strong { color: var(--accent); }

.source-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.source-card { padding: 28px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.source-card__type { display: inline-block; margin-bottom: 28px; color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .11em; font-weight: 800; }
.source-card h3 { min-height: 2.5em; }
.source-card__result { margin: 28px 0 10px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 1.45rem; font-weight: 800; letter-spacing: .04em; }
.source-card__result span { color: var(--ok); }
.source-card p { color: var(--muted); margin-bottom: 0; }
.source-summary { text-align: center; margin: 32px 0 0; }

.timeline { margin-top: 54px; display: grid; grid-template-columns: 1fr 220px 1fr; gap: 30px; align-items: stretch; }
.timeline__era, .timeline__pivot { padding: 30px; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); background: rgba(255,255,255,.045); }
.timeline__date { display: block; margin-bottom: 24px; color: #cfd8cd; text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; font-weight: 800; }
.timeline__variants { display: grid; gap: 8px; font: 700 clamp(1.8rem, 3vw, 3rem)/1.1 Georgia, "Times New Roman", serif; }
.timeline__variants--now span { color: #dfe9da; }
.timeline__era p, .timeline__pivot p { margin: 26px 0 0; color: #ced6cd; }
.timeline__pivot { text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.timeline__year { font-size: 2.3rem; font-weight: 800; }
.timeline__dot { width: 12px; height: 12px; border-radius: 50%; background: #dfe8dc; margin: 18px auto 0; box-shadow: 0 0 0 8px rgba(223,232,220,.08); }
.history-callout { margin-top: 28px; padding: 20px 24px; border-radius: 18px; background: rgba(255,255,255,.08); color: #e1e6df; }

.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.quote-card { position: relative; min-height: 310px; padding: 28px; display: flex; flex-direction: column; background: #e9e1d4; border-radius: var(--radius); box-shadow: 0 14px 36px rgba(68,53,39,.07); }
.quote-card::before { content: "“"; position: absolute; right: 22px; top: 8px; font: 700 6rem/1 Georgia, "Times New Roman", serif; color: rgba(71,58,45,.08); }
.quote-card__year { color: #756b60; font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.quote-card blockquote { margin: auto 0 24px; font: 700 1.35rem/1.45 Georgia, "Times New Roman", serif; }
.quote-card p { margin: 0; color: #6a635b; font-size: .9rem; }
mark { background: transparent; color: #4b5e4a; padding: 0 .06em; border-bottom: 2px solid #879984; }
.smallprint { max-width: 850px; margin: 24px auto 0; color: var(--muted); font-size: .84rem; text-align: center; }

.usage-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.usage-item { padding: 19px 20px; border: 1px solid var(--line); border-radius: 16px; background: rgba(251,250,246,.62); }
.usage-item span { display: block; margin-bottom: 5px; color: var(--muted); font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.usage-item strong { font-family: Georgia, "Times New Roman", serif; font-size: 1.18rem; }

.pair-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.pair-card { padding: 28px 18px; text-align: center; border: 1px solid var(--line); border-radius: 20px; background: var(--paper); }
.pair-card strong, .pair-card del { display: block; }
.pair-card strong { font: 700 1.9rem/1.1 Georgia, "Times New Roman", serif; color: var(--ok); }
.pair-card del { margin-top: 9px; color: var(--bad); }
.memory-line { margin-top: 22px; padding: 18px; text-align: center; border-radius: 16px; background: var(--accent-soft); font-weight: 800; letter-spacing: .02em; }

.memory-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.memory-card { min-height: 400px; padding: 30px; display: flex; flex-direction: column; align-items: center; text-align: center; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.memory-card h3 { margin-top: 26px; font-size: 1.35rem; }
.memory-card p { color: var(--muted); }

.yeti { width: 150px; height: 180px; position: relative; margin-top: 5px; }
.yeti__head { position: absolute; width: 106px; height: 92px; left: 22px; top: 8px; border-radius: 48% 48% 42% 42%; background: #dbe2d6; border: 2px solid #65705f; z-index: 2; }
.yeti__head::before, .yeti__head::after { content: ""; position: absolute; top: -15px; width: 26px; height: 33px; background: #dbe2d6; border: 2px solid #65705f; border-bottom: 0; border-radius: 50% 50% 0 0; transform: rotate(-18deg); }
.yeti__head::before { left: 8px; }
.yeti__head::after { right: 8px; transform: rotate(18deg); }
.yeti__head span { position: absolute; top: 39px; width: 7px; height: 7px; border-radius: 50%; background: #30352d; }
.yeti__head span:first-child { left: 31px; }
.yeti__head span:nth-child(2) { right: 31px; }
.yeti__head i { position: absolute; left: 41px; top: 56px; width: 22px; height: 9px; border-bottom: 2px solid #30352d; border-radius: 50%; }
.yeti__body { position: absolute; width: 128px; height: 110px; left: 11px; bottom: 0; border-radius: 48% 48% 35% 35%; background: #dbe2d6; border: 2px solid #65705f; }
.yeti__body::before, .yeti__body::after { content: ""; position: absolute; bottom: 0; width: 34px; height: 52px; background: #dbe2d6; border: 2px solid #65705f; border-radius: 0 0 18px 18px; }
.yeti__body::before { left: 13px; }
.yeti__body::after { right: 13px; }

.cap-letter { width: 160px; height: 180px; position: relative; display: grid; place-items: center; }
.cap-letter span, .cap-letter b { position: absolute; font: 800 7rem/1 Georgia, "Times New Roman", serif; transition: transform .3s ease, opacity .3s ease; }
.cap-letter span { color: #9a9e93; transform: translateX(-32px) scale(.7); opacity: .35; }
.cap-letter b { color: var(--accent-deep); transform: translateX(26px); }
.cap-letter i { position: absolute; width: 47px; height: 16px; border: 4px solid var(--warm); border-bottom: 0; border-radius: 50% 50% 0 0; top: 35px; right: 29px; transform: rotate(-8deg); }

.road-word { min-height: 180px; display: flex; align-items: center; justify-content: center; gap: 8px; font: 800 clamp(2.6rem, 5vw, 4rem)/1 Georgia, "Times New Roman", serif; }
.road-word b { display: grid; place-items: center; width: 70px; height: 70px; border-radius: 50%; color: #fff; background: var(--accent); box-shadow: 0 0 0 10px var(--accent-soft); }

.quiz-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 70px; align-items: start; }
.quiz-copy { position: sticky; top: 110px; }
.quiz-score { display: inline-block; margin-top: 12px; padding: 8px 13px; border-radius: 999px; background: var(--accent-soft); font-weight: 800; }
.quiz { display: grid; gap: 14px; }
.quiz-card { padding: 24px; background: var(--paper); border: 1px solid var(--line); border-radius: 20px; transition: border-color .2s ease; }
.quiz-card p { font-weight: 800; margin-bottom: 17px; }
.quiz-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.quiz-options button { cursor: pointer; border: 1px solid var(--line); border-radius: 13px; background: #fffdfa; color: var(--ink); padding: 12px 16px; font-weight: 700; transition: transform .15s ease, background .15s ease, border-color .15s ease; }
.quiz-options button:hover:not(:disabled) { transform: translateY(-1px); border-color: rgba(70,83,66,.4); }
.quiz-options button.is-correct { background: #e3ece0; border-color: #8aa187; }
.quiz-options button.is-wrong { background: #f0e4df; border-color: #b79286; }
.quiz-options button:disabled { cursor: default; }
.quiz-feedback { min-height: 24px; margin-top: 12px; color: var(--muted); font-size: .9rem; }
.quiz-reset { justify-self: start; margin-top: 6px; border: 0; background: transparent; color: var(--accent-deep); font-weight: 800; cursor: pointer; border-bottom: 1px solid currentColor; padding: 3px 0; }

.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; align-items: start; }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { list-style: none; cursor: pointer; padding: 22px 38px 22px 0; position: relative; font-weight: 800; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 6px; top: 18px; font-size: 1.45rem; font-weight: 400; color: var(--muted); }
details[open] summary::after { content: "−"; }
details p { padding: 0 44px 22px 0; color: var(--muted); }

.final-card { position: relative; padding: clamp(46px, 8vw, 90px) clamp(24px, 6vw, 74px); text-align: center; border-radius: 40px; background: var(--accent-deep); color: #f8f5ec; overflow: hidden; }
.final-card::before { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; background: rgba(255,255,255,.04); right: -140px; top: -160px; }
.final-card h2 { margin-bottom: 12px; }
.final-word { font: 800 clamp(4.3rem, 12vw, 10rem)/.92 Georgia, "Times New Roman", serif; letter-spacing: .012em; font-kerning: normal; color: #eef1e8; }
.final-chain { margin: 34px auto 18px; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 14px; align-items: center; font-weight: 800; }
.final-chain i { color: #aeb9ab; font-style: normal; }
.final-memory { color: #d1d9ce; }
.final-yeti { width: 68px; height: 68px; margin: 32px auto 12px; display: grid; place-items: center; border-radius: 50%; background: #dce4d8; color: var(--accent-deep); font: 800 2.2rem/1 Georgia, "Times New Roman", serif; }
.final-caption { color: #d6ddd3; margin-bottom: 28px; }
.button-link { display: inline-block; padding: 13px 19px; border-radius: 999px; background: #f2efe7; color: var(--accent-deep); text-decoration: none; font-weight: 800; }

.site-footer { padding: 30px 0 42px; color: var(--muted); font-size: .84rem; }
.footer-sources { padding: 24px 0 30px; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.footer-sources__title { margin-bottom: 10px; font-weight: 800; color: var(--ink); }
.footer-sources__links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.footer-sources__links a { color: var(--muted); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-inner p { margin: 0; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { text-decoration: none; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 900px) {
  .mini-nav { display: none; }
  .split, .split--wide, .quiz-layout, .faq-layout { grid-template-columns: 1fr; gap: 42px; }
  .quiz-copy { position: static; }
  .morph-grid, .source-grid, .quote-grid, .memory-grid { grid-template-columns: 1fr; }
  .morph-card { min-height: 170px; }
  .timeline { grid-template-columns: 1fr; }
  .timeline__pivot { min-height: 190px; }
  .pair-grid { grid-template-columns: repeat(2, 1fr); }
  .memory-card { min-height: auto; }
}

@media (max-width: 620px) {
  .site-header { padding: 14px 18px; }
  .brand { font-size: .92rem; }
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  .section { padding: 68px 0; }
  .section--hero { min-height: calc(100svh - 55px); padding-top: 38px; }
  h1 { font-size: clamp(3.1rem, 17vw, 5.4rem); }
  h2 { font-size: clamp(2rem, 10vw, 3.2rem); }
  .hero__tease { margin-top: -8px; }
  .hero-duel { grid-template-columns: 1fr; gap: 9px; max-width: 360px; }
  .hero-duel__word { padding: 15px 18px; font-size: 2.35rem; }
  .hero-duel__or { line-height: 1; }
  .hero__question { margin-top: 3px; }
  .section--answer { min-height: auto; }
  .answer-duel { grid-template-columns: 1fr; max-width: 430px; }
  .answer-duel__divider { width: auto; height: 1px; }
  .answer-duel__item { min-height: 180px; padding: 34px 20px; }
  .answer-duel__item strong { font-size: clamp(3rem, 16vw, 4.7rem); }
  .answer-duel__mark { top: 16px; right: 17px; width: 30px; height: 30px; }
  .answer-glow--one { width: 240px; height: 240px; left: -110px; top: -40px; }
  .answer-glow--two { width: 210px; height: 210px; right: -100px; bottom: -40px; }
  .hero__glow--one { width: 260px; height: 260px; left: -100px; }
  .hero__glow--two { width: 220px; height: 220px; right: -100px; }
  .compare-strip { flex-direction: column; }
  .usage-grid, .quiz-options { grid-template-columns: 1fr; }
  .pair-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .pair-card { padding: 22px 10px; }
  .pair-card strong { font-size: 1.55rem; }
  .timeline__era, .timeline__pivot { padding: 24px; }
  .final-card { border-radius: 26px; }
  .final-word { font-size: clamp(3.25rem, 15vw, 5.6rem); letter-spacing: .008em; white-space: nowrap; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}