/* AILA landing. App paper and ink, Fraunces headlines, Source Sans 3 for UI. */

@font-face {
  font-family: "Fraunces";
  src: url("assets/fraunces-latin-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Fraunces";
  src: url("assets/fraunces-latin-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Fraunces";
  src: url("assets/fraunces-latin-500-italic.woff2") format("woff2");
  font-weight: 500;
  font-style: italic;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Fraunces";
  src: url("assets/fraunces-latin-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Fraunces";
  src: url("assets/fraunces-latin-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("assets/source-sans-3-latin-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("assets/source-sans-3-latin-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("assets/source-sans-3-latin-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  color-scheme: light;
  --bg: #F6F1E8;
  --surface: #FBF8F2;
  --card: #FFFFFF;
  --text: #1C1916;
  --muted: #6B635A;
  --faint: #72695F;
  --hairline: #E3DACD;
  --rule: #E3DACD;
  --rule-strong: #D4CBBC;
  --paper: #F6F1E8;
  --ink: #1C1916;
  --ink-soft: #3C362F;
  --accent: #1E6E8C;
  --on-accent: #F4FBFE;
  --accent-soft: #E4F2F7;
  --pressed: #EFE8DC;
  --pad: clamp(1.05rem, 3.2vw, 2.25rem);
  --max: 1120px;
  --serif: "Fraunces", "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  --sans: "Source Sans 3", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.55;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: var(--on-accent);
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  transform: translateY(-160%);
  background: var(--accent);
  color: var(--on-accent);
  padding: 0.45rem 0.7rem;
  z-index: 30;
  text-decoration: none;
  font-weight: 600;
}

.skip:focus {
  position: fixed;
  transform: none;
}

.wrap {
  width: min(var(--max), 100%);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg);
  padding-top: 0.7rem;
}

.masthead.is-scrolled {
  box-shadow: 0 1px 0 var(--rule-strong);
}

.mast-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.2rem 1rem;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.625rem;
  letter-spacing: -0.023em;
  line-height: 1.23;
  padding: 0.35rem 0;
}

.mast-issue {
  order: 3;
  flex: 1 0 100%;
  margin: 0.15rem 0 0.35rem;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.mast-tools {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.lang {
  color: var(--text);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-bottom: 1px solid var(--rule-strong);
}

.burger {
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--rule-strong);
  background: transparent;
  color: var(--text);
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}

.burger span {
  display: block;
  width: 16px;
  height: 1px;
  background: var(--text);
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(14, 13, 12, 0.72);
  z-index: 30;
  opacity: 0;
  visibility: hidden;
}

.nav-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 40;
  width: min(22rem, 100%);
  height: 100%;
  background: var(--bg);
  border-left: 1px solid var(--rule-strong);
  padding: 5.5rem 1.4rem 2rem;
  transform: translateX(100%);
  visibility: hidden;
}

.mobile-nav.active {
  transform: translateX(0);
  visibility: visible;
}

.mobile-nav a {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  min-height: 52px;
  color: var(--text);
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.65rem;
  border-bottom: 1px solid var(--rule);
}

.mobile-nav-index {
  font-style: italic;
  font-size: 0.95rem;
  color: var(--faint);
  width: 1.8rem;
}

@media (min-width: 768px) {
  .burger,
  .nav-backdrop,
  .mobile-nav {
    display: none;
  }
}

@media (max-width: 767px) {
  .site-nav {
    display: none;
  }
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.15rem 0.15rem;
  padding-bottom: 0.35rem;
}

.site-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.98rem;
  padding: 0.35rem 0.7rem 0.35rem 0;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.site-nav a:hover,
.site-nav a.is-active,
.lang:hover,
.item-source a:hover,
.footer-nav a:hover,
.mail:hover,
.faq a:hover {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.rules {
  display: grid;
  gap: 3px;
}

.rules span {
  display: block;
  background: var(--text);
  transform-origin: left center;
}

.rules span:first-child {
  height: 3px;
}

.rules span:last-child {
  height: 1px;
}

section[id] {
  scroll-margin-top: 7.5rem;
}

h1,
h2,
.level h3,
.excerpt-title,
.brief-item h3,
.pull {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 {
  margin: 0.55rem 0 0;
  font-size: clamp(2.35rem, 7vw, 5.15rem);
  line-height: 0.96;
}

h2 {
  margin: 0.3rem 0 0;
  font-size: clamp(1.85rem, 4vw, 3rem);
  line-height: 1.02;
  max-width: 18ch;
}

p {
  margin: 0.75rem 0 0;
}

a {
  color: inherit;
}

a:focus-visible,
.skip:focus,
summary:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
}

.kicker {
  margin: 0;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.27;
  text-transform: uppercase;
  color: var(--accent);
}

.front {
  position: relative;
  padding-block: clamp(1.35rem, 3.5vw, 2.75rem) clamp(2.25rem, 5vw, 4rem);
}

.front-grid {
  display: grid;
  gap: 2.25rem;
  align-items: start;
}

.standfirst {
  margin: 1rem 0 0;
  max-width: 28rem;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.28rem, 2.3vw, 1.65rem);
  line-height: 1.28;
  color: var(--text);
}

.lede,
.level p,
.essay p,
.notice p,
.faq p {
  max-width: 40rem;
}

.lede {
  color: var(--muted);
  font-size: 1.05rem;
}

.store-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 1.35rem 0 0;
}

.store-pending {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.55rem 0.9rem;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.25;
}

.price-note,
.mast-issue,
.meta,
.item-meta,
.fine {
  color: var(--muted);
}

.price-note {
  margin: 0.75rem 0 0;
  max-width: 36rem;
  font-size: 0.92rem;
}

.store-link {
  display: inline-block;
  padding: 12px;
  line-height: 0;
}

.store-link img {
  display: block;
  height: 48px;
  width: auto;
}

.rail {
  min-width: 0;
}

.toc {
  list-style: none;
  margin: 0.85rem 0 0;
  padding: 0;
}

.toc li {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.55rem;
  align-items: baseline;
  padding: 0.38rem 0;
  border-top: 1px solid var(--rule);
  font-size: 1rem;
}

.toc-num {
  font-family: var(--serif);
  font-style: italic;
  font-variant-numeric: tabular-nums;
  color: var(--faint);
}

.excerpt {
  margin: 1.35rem 0 0;
  padding-top: 0.95rem;
  border-top: 1px solid var(--rule-strong);
}

.excerpt-title {
  margin: 0.4rem 0 0;
  font-size: clamp(1.45rem, 2vw, 1.85rem);
  line-height: 1.05;
}

.excerpt p {
  margin: 0.55rem 0 0;
  color: var(--muted);
  max-width: 28rem;
}

.block {
  padding-block: clamp(2.25rem, 6vw, 4.25rem);
  border-top: 1px solid var(--rule);
}

.section-head {
  display: grid;
  gap: 0.85rem;
  align-items: end;
}

.meta {
  margin: 0;
  font-size: 0.92rem;
}

.levels {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.level {
  display: grid;
  gap: 0.35rem 1.25rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--rule);
}

.level-index {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.65rem;
  line-height: 1;
  color: var(--faint);
}

.level h3 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.15rem);
  line-height: 1;
}

.level p {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.brief-list {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  margin: 1.35rem 0 0;
  padding: 0;
}

.brief-item {
  margin: 0;
  padding: 1rem 1.05rem 1.15rem;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--card);
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.item-meta {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brief-item h3 {
  margin: 0.45rem 0 0;
  font-size: clamp(1.35rem, 2vw, 1.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.brief-item p {
  color: var(--muted);
}

.item-source {
  margin-top: auto;
  padding-top: 0.85rem;
  font-size: 0.92rem;
}

.item-source a {
  text-underline-offset: 0.18em;
}

.essay {
  background: var(--card);
  color: var(--ink);
  padding-block: clamp(2.4rem, 6vw, 4.5rem);
}

.essay ::selection {
  background: var(--ink);
  color: var(--paper);
}

.essay .pull,
.essay .section-eyebrow,
.essay .section-breadcrumb-row {
  color: var(--ink-soft);
}

.essay .section-eyebrow-dot,
.essay .section-breadcrumb-dot {
  background: var(--ink);
}

.essay .section-breadcrumb-line {
  background: rgba(26, 22, 18, 0.35);
}

.wording--after .kicker {
  color: var(--paper);
}

.essay h2 {
  max-width: 14ch;
}

.pull {
  margin: 1.1rem 0 0;
  font-style: italic;
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  line-height: 1.2;
  max-width: 18ch;
}

.essay .lede,
.essay-copy p {
  color: var(--ink-soft);
  max-width: 38rem;
}

.essay a:focus-visible {
  outline-color: var(--ink);
}

.notice {
  padding-block: clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid var(--rule);
}

.notice h2 {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.notice p {
  color: var(--muted);
}

.mail {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 0.85rem;
  color: var(--text);
  font-weight: 600;
  text-underline-offset: 0.16em;
}

.faq details {
  border-top: 1px solid var(--rule);
}

.faq details:last-of-type {
  border-bottom: 1px solid var(--rule);
}

.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 56px;
  padding: 0.85rem 0;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.5rem;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "–";
}

.faq h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.faq details p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.faq a {
  text-underline-offset: 0.18em;
}

.colophon {
  padding-block: 1.35rem 6.5rem;
}

.colo-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.15rem;
}

.colophon address {
  font-style: normal;
  margin: 0;
  color: var(--text);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
}

.footer-nav a {
  color: var(--text);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  text-underline-offset: 0.18em;
}

.fine {
  margin: 0.7rem 0 0;
  max-width: 40rem;
  font-size: 0.92rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 768px) {
  .mast-issue {
    order: 0;
    flex: 1 1 auto;
    margin: 0;
    text-align: center;
  }

  .front-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(220px, 0.72fr);
    gap: 2.5rem;
  }

  .rail {
    border-left: 1px solid var(--rule);
    padding-left: 1.5rem;
  }

  .level {
    grid-template-columns: 3.5rem minmax(7rem, 11rem) minmax(0, 1fr);
    align-items: baseline;
    column-gap: 1.5rem;
  }

  .level p {
    margin: 0;
  }

  .section-head {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .essay-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
    column-gap: 3rem;
    align-items: start;
  }

  .essay-grid .kicker {
    grid-column: 1 / -1;
  }

  .essay-copy {
    padding-top: 0.35rem;
  }

  .colo-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .brief-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 1.75rem;
  }

  .brief-item,
  .brief-item:first-child,
  .brief-item:last-child {
    border: 1px solid var(--hairline);
    padding: 1rem 1.05rem 1.15rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .rules span {
    animation: rule-in 0.65s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  }

  .rules span:last-child {
    animation-delay: 0.1s;
  }
}

@keyframes rule-in {
  from {
    transform: scaleX(0);
  }

  to {
    transform: scaleX(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .rules span {
    animation: none;
  }
}

@media (forced-colors: active) {
  .store-pending,
  .lang,
  .brief-item,
  .level,
  .toc li,
  .faq details {
    border-color: CanvasText;
  }
}

/* DSA structure, AILA ink: framed hero, marquees, giant rows, compare, spotlight. */

.hero-rule {
  display: none;
}

.edition-frame {
  border: 1px solid var(--rule-strong);
}

.edition-bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--rule);
  margin: 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.edition-frame h1 {
  padding: 1.1rem 1rem 0;
}

.edition-split {
  display: grid;
  margin-top: 1.1rem;
  border-top: 1px solid var(--rule);
}

.edition-split > * {
  padding: 1rem;
}

.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.5rem;
  color: var(--faint);
  text-decoration: none;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.scroll-indicator-line {
  width: 1px;
  height: 36px;
  background: var(--text);
  transform-origin: top center;
}

.trust-bar {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
  padding: 0.85rem 0;
}

.trust-inner {
  display: grid;
  gap: 0.65rem;
}

.trust-label {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.trust-logos {
  overflow: hidden;
}

.trust-track,
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 28s linear infinite;
}

.trust-bar:hover .trust-track,
.marquee-strip:hover .marquee-track {
  animation-play-state: paused;
}

.trust-set {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.trust-item {
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.trust-slash {
  margin: 0 0.9rem;
  color: var(--faint);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.section-eyebrow-dot,
.section-breadcrumb-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text);
}

.path-grid {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.chance-visual {
  border-top: 1px solid var(--rule-strong);
  padding-top: 1rem;
}

.chance-badge {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
}

.chance-row {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.7rem;
  align-items: center;
  margin-top: 0.75rem;
}

.chance-row span {
  font-size: 0.85rem;
  color: var(--muted);
}

.chance-bar {
  height: 6px;
  background: var(--rule);
}

.chance-bar i {
  display: block;
  height: 100%;
  background: var(--text);
}

.chance-note {
  margin: 0.8rem 0 0;
  font-size: 0.85rem;
  color: var(--faint);
}

.bento {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.bento-card {
  position: relative;
  overflow: hidden;
  min-height: 7.5rem;
  padding: 0.9rem 0.95rem;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.bento-spot {
  position: absolute;
  width: 9rem;
  height: 9rem;
  border-radius: 50%;
  background: var(--accent-soft);
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
}

.bento-card:hover .bento-spot {
  opacity: 1;
}

.bento-num {
  font-family: var(--serif);
  font-style: italic;
  color: var(--faint);
}

.bento-card strong {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.level.giant-row {
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 1rem;
  margin-top: 0.75rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--card);
}

.level.giant-row h3 {
  transition: color 0.2s ease;
}

.giant-arrow {
  font-family: var(--serif);
  font-size: 1.4rem;
  color: var(--faint);
}

.level.giant-row div p {
  margin-top: 0.35rem;
}

.level.giant-row:hover h3 {
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.level.giant-row:hover .giant-arrow {
  transform: rotate(45deg);
}

.section-breadcrumb {
  margin-top: 1.75rem;
}

.section-breadcrumb-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding-bottom: 0.55rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.section-breadcrumb-row span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.section-breadcrumb-line {
  height: 1px;
  background: var(--rule-strong);
}

.marquee-strip {
  overflow: hidden;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 0.85rem 0;
}

.marquee-phrase {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding-right: 2rem;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.7rem, 4.5vw, 3.2rem);
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(28, 25, 22, 0.45);
}

.marquee-slash {
  color: var(--text);
  -webkit-text-stroke: 0;
  font-style: normal;
}

.compare-pair {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.compare-card {
  padding: 1.1rem 1rem 1.15rem;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--card);
}

.compare-card h3 {
  margin: 0 0 0.7rem;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.55rem;
}

.compare-card li {
  margin: 0.45rem 0 0;
  padding-left: 1.1rem;
  position: relative;
}

.compare-card li::before {
  position: absolute;
  left: 0;
  font-family: var(--serif);
}

.compare-card--bad li::before {
  content: "–";
}

.compare-card--good {
  background: var(--ink);
  color: var(--paper);
}

.compare-card--good li::before {
  content: "+";
}

.wording-pair {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.wording {
  padding: 1rem 1.15rem 1.2rem;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--card);
}

.wording p {
  margin: 0.4rem 0 0;
  max-width: none;
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.2vw, 1.65rem);
  line-height: 1.28;
}

.wording .kicker {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.75rem;
  line-height: 1.3;
}

.wording--after {
  background: var(--ink);
  color: var(--paper);
}

.stats-row {
  display: grid;
  margin-top: 1.5rem;
  border-top: 1px solid rgba(26, 22, 18, 0.2);
}

.stat {
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(26, 22, 18, 0.15);
}

.stat strong {
  display: block;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.8rem;
  letter-spacing: -0.03em;
}

.stat span {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.wordmark {
  margin: 1.5rem 0 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(4.2rem, 18vw, 10.5rem);
  line-height: 0.8;
  letter-spacing: -0.045em;
  text-align: center;
}

.back-top {
  position: fixed;
  right: 0.85rem;
  bottom: 6.4rem;
  z-index: 25;
  min-width: 44px;
  min-height: 44px;
  padding: 0 0.75rem;
  border: 1px solid var(--rule-strong);
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-size: 0.95rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.has-reveal .reveal-text {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.has-reveal .reveal-text.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes scroll-line-pulse {
  0%, 100% { transform: scaleY(0.35); opacity: 0.35; }
  50% { transform: scaleY(1); opacity: 1; }
}

@media (min-width: 768px) {
  .edition-split {
    grid-template-columns: 1fr 1fr;
  }

  .edition-split > :first-child {
    border-right: 1px solid var(--rule);
  }

  .trust-inner {
    grid-template-columns: 9rem minmax(0, 1fr);
    align-items: center;
  }

  .path-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(16rem, 0.8fr);
  }

  .bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .compare-pair,
  .wording-pair {
    grid-template-columns: 1fr 1fr;
  }

  .stats-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .stat {
    padding: 1rem 1rem 0.2rem 0;
    border-bottom: 0;
    border-left: 1px solid rgba(26, 22, 18, 0.2);
    padding-left: 1rem;
  }

  .stat:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

@media (min-width: 1100px) {
  .hero-rule {
    display: block;
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--rule);
  }

  .hero-rule-left { left: 4%; }
  .hero-rule-right { right: 4%; }

  .bento {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: no-preference) {
  .mobile-nav,
  .nav-backdrop,
  .back-top,
  .giant-arrow {
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
  }

  .scroll-indicator-line {
    animation: scroll-line-pulse 2s ease-in-out infinite;
  }
}

@media (prefers-reduced-motion: reduce) {
  .trust-track,
  .marquee-track,
  .scroll-indicator-line,
  .has-reveal .reveal-text {
    animation: none;
    opacity: 1;
    transform: none;
    transition: none;
  }

  .aila-bob,
  .aila-lid {
    animation: none;
  }

  .aila-bob {
    transform: none;
  }

  .aila-lid {
    transform: scaleY(0);
  }

  .trust-set[aria-hidden="true"],
  .marquee-phrase[aria-hidden="true"] {
    display: none;
  }

  .trust-track,
  .marquee-track {
    width: auto;
    white-space: normal;
    flex-wrap: wrap;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.aila-hello {
  display: flex;
  align-items: flex-end;
  gap: 0.85rem;
  padding: 1rem 1rem 0;
}

.aila-head {
  position: relative;
  display: block;
  line-height: 0;
  background: transparent;
}

.aila-head picture,
.aila-head img {
  display: block;
  width: 100%;
  height: auto;
  background: transparent;
}

.aila-hello .aila-head {
  width: 8.4rem;
  flex: none;
}

.aila-lid {
  position: absolute;
  left: 22%;
  width: 56%;
  top: 34.6%;
  height: 3.6%;
  border-radius: 999px;
  background: #091624;
  transform: scaleY(0);
  transform-origin: center;
  pointer-events: none;
}

.aila-bubble {
  margin: 0 0 0.85rem;
  padding: 0.8rem 0.95rem;
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.aila-float {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 30;
  width: 4.5rem;
  line-height: 0;
  text-decoration: none;
  background: transparent;
}

.aila-float:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.phone-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: min(68vw, 17.5rem);
  gap: 0.9rem;
  margin: 1.35rem 0 0;
  padding-bottom: 0.4rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}

.phone {
  margin: 0;
  scroll-snap-align: start;
}

.phone-bezel {
  padding: 0.55rem;
  border-radius: 2.1rem;
  background: #1C1916;
}

.phone-screen {
  height: 32rem;
  overflow: hidden;
  padding: 0.85rem 0.85rem 1rem;
  border-radius: 1.6rem;
  background: var(--bg);
  color: var(--ink);
}

.phone-caption {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.app-mast {
  margin: 0.35rem 0 0;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.app-kicker {
  margin: 0.85rem 0 0;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.3;
  text-transform: uppercase;
}

.app-title {
  margin: 0.2rem 0 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.35rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.shelf {
  display: flex;
  gap: 0.55rem;
  margin-top: 0.8rem;
}

.book {
  flex: 0 0 7.4rem;
  min-height: 9.2rem;
  padding: 0.7rem 0.65rem;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--card);
}

.book h3 {
  margin: 0.45rem 0 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.book p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.75rem;
}

.path-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 4rem;
  margin-top: 0.55rem;
  padding: 0.45rem 0.55rem 0.45rem 0.45rem;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: var(--surface);
}

.mini-cover {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 3.15rem;
  flex: none;
  border-radius: 6px;
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--serif);
  font-weight: 600;
  font-size: 0.85rem;
}

.path-row strong {
  display: block;
  margin-top: 0.1rem;
  font-size: 0.92rem;
  line-height: 1.2;
}

.path-row .app-kicker {
  margin: 0;
}

.path-chev {
  margin-left: auto;
  color: var(--faint);
  font-size: 1.1rem;
}

.reader-title {
  margin: 0.35rem 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.45rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.reader-body {
  margin: 0.55rem 0 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 0.95rem;
  line-height: 1.45;
}

.term-card {
  margin-top: 0.85rem;
  padding: 0.75rem 0.75rem 0.85rem;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--surface);
}

.term-top {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
}

.term-top .aila-head {
  width: 3.1rem;
  flex: none;
}

.term-name {
  margin: 0.15rem 0 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.35rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.term-card p {
  margin: 0.4rem 0 0;
  font-size: 0.92rem;
  line-height: 1.4;
}

.term-card .app-kicker {
  margin-top: 0.7rem;
}

.save-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  margin-top: 0.75rem;
  border-radius: 12px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  font-size: 0.95rem;
}

@media (min-width: 1100px) {
  .aila-hello .aila-head {
    width: 10.5rem;
  }

  .phone-row {
    grid-auto-flow: unset;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow: visible;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .aila-bob {
    animation: aila-float 4.6s ease-in-out infinite;
  }

  .aila-lid {
    animation: aila-blink 5.2s ease-in-out infinite;
  }
}

@keyframes aila-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes aila-blink {
  0%, 88%, 100% { transform: scaleY(0); }
  92% { transform: scaleY(1); }
  96% { transform: scaleY(0); }
}

@media print {
  body {
    background: #fff;
    color: #000;
  }

  .masthead {
    position: static;
    background: #fff;
  }

  .essay {
    background: #fff;
    color: #000;
  }

  a {
    color: #000;
  }

  .rules span {
    background: #000;
  }
}