:root {
  --paper: #f3eee4;
  --paper-2: #e8e0d3;
  --ink: #191716;
  --muted: #6e675f;
  --line: rgba(25, 23, 22, 0.18);
  --line-strong: rgba(25, 23, 22, 0.48);
  --acid: #d8ff55;
  --red: #f05b3e;
  --oxblood: #561710;
  --lilac: #bca8ff;
  --card: #fbf7ef;
  --shadow: 0 24px 70px rgba(40, 30, 24, 0.13);
  color-scheme: light;
}

html[data-theme="dark"] {
  --paper: #171513;
  --paper-2: #23201d;
  --ink: #f4eee4;
  --muted: #b8aea2;
  --line: rgba(244, 238, 228, 0.18);
  --line-strong: rgba(244, 238, 228, 0.46);
  --card: #211e1b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  transition: background-color 220ms ease, color 220ms ease;
}

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

::selection {
  background: var(--acid);
  color: #151515;
}

:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.progress {
  position: fixed;
  z-index: 1000;
  inset: 0 0 auto;
  height: 3px;
  pointer-events: none;
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--red);
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  padding: 0 3vw;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 91%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  color: inherit;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: var(--acid);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 20px;
  font-style: italic;
  letter-spacing: 0;
}

.desktop-nav {
  display: flex;
  gap: 30px;
  font-size: 13px;
  font-weight: 700;
}

.desktop-nav a,
.mobile-nav a {
  position: relative;
  color: var(--muted);
  text-decoration: none;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: '';
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.saved-indicator,
.icon-button,
.menu-button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
}

.saved-indicator {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 13px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.saved-indicator strong {
  display: grid;
  min-width: 20px;
  height: 20px;
  place-items: center;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-size: 10px;
}

.icon-button {
  width: 40px;
  padding: 0;
  font-size: 18px;
}

.menu-button {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  font-size: 12px;
  font-weight: 700;
}

.menu-lines {
  display: grid;
  gap: 4px;
}

.menu-lines i {
  display: block;
  width: 16px;
  height: 1px;
  background: currentColor;
  transition: transform 180ms ease;
}

.mobile-nav {
  position: absolute;
  top: 76px;
  right: 0;
  left: 0;
  padding: 18px 4vw 26px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.mobile-nav:not([hidden]) {
  display: grid;
  gap: 10px;
}

.mobile-nav a {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 18px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  min-height: calc(100vh - 76px);
  overflow: hidden;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8vw 4.5vw 6vw 6vw;
  border-right: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.signal-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: #54b66f;
  box-shadow: 0 0 0 5px rgba(84, 182, 111, 0.15);
}

.hero h1,
.section-heading h2,
.lab-copy h2,
.about-copy h2,
.error-shell h1 {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 400;
  letter-spacing: -0.06em;
  line-height: 0.92;
}

.hero h1 {
  max-width: 820px;
  font-size: clamp(3.8rem, 6.8vw, 8.6rem);
}

.hero h1 em {
  color: var(--red);
  font-weight: 400;
}

.hero-lede {
  max-width: 620px;
  margin: 36px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.3vw, 1.35rem);
  line-height: 1.55;
}

.hero-actions,
.about-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 26px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  min-height: 52px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-3px);
  box-shadow: 7px 7px 0 var(--red);
}

.button--dark {
  background: var(--ink);
  color: var(--paper);
}

.button--acid {
  background: var(--acid);
  color: #151515;
}

.text-link,
.source-link,
.back-top {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid currentColor;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.text-link--light {
  color: #f3eee4;
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 62px;
}

.trust-line span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
  min-height: 640px;
  padding: 3vw;
  background: var(--paper-2);
  perspective: 1200px;
}

.hero-frame {
  position: absolute;
  inset: 5vw 3vw 4vw;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 180px 10px 10px;
  background: #ede4d6;
  box-shadow: var(--shadow);
  transform: rotateY(var(--tilt-x, 0deg)) rotateX(var(--tilt-y, 0deg));
  transition: transform 160ms ease-out;
}

.hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 54% center;
}

.hero-note {
  position: absolute;
  display: grid;
  gap: 2px;
  min-width: 160px;
  padding: 13px 15px;
  border: 1px solid #191716;
  background: var(--acid);
  color: #191716;
  box-shadow: 6px 6px 0 rgba(25, 23, 22, 0.9);
  transform: rotate(-2deg);
}

.hero-note span {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-note strong {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 18px;
}

.hero-note--top {
  top: 10%;
  left: 1.5%;
}

.hero-note--bottom {
  right: 2%;
  bottom: 8%;
  background: #f3eee4;
  transform: rotate(2.5deg);
}

.orbit-stamp {
  position: absolute;
  top: 4.5%;
  right: 4%;
  display: grid;
  width: 104px;
  height: 104px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--acid);
  animation: orbit 18s linear infinite;
}

.orbit-stamp span {
  max-width: 78px;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.13em;
  line-height: 1.45;
  text-align: center;
}

@keyframes orbit {
  to { transform: rotate(360deg); }
}

.ticker {
  overflow: hidden;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--acid);
  color: #171513;
}

.ticker-track {
  display: flex;
  width: max-content;
  align-items: center;
  gap: 24px;
  padding: 12px 0;
  animation: ticker 30s linear infinite;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.ticker-track b {
  color: var(--red);
  font-size: 8px;
}

@keyframes ticker {
  to { transform: translateX(-50%); }
}

.section-shell {
  width: min(1440px, calc(100% - 8vw));
  margin-inline: auto;
}

.discover,
.method,
.about {
  padding-block: 120px;
}

.section-heading {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 6vw;
  align-items: end;
  margin-bottom: 54px;
}

.section-heading h2,
.lab-copy h2,
.about-copy h2 {
  font-size: clamp(3rem, 6vw, 6.7rem);
}

.section-heading > p {
  max-width: 460px;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.filter-chip {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}

.filter-chip span {
  font-size: 9px;
  opacity: 0.72;
}

.filter-chip:hover,
.filter-chip.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.results-note {
  min-height: 24px;
  margin: 14px 0 22px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.discovery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.discovery-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
  min-height: 610px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--card);
  box-shadow: 0 0 0 transparent;
  transition: transform 220ms ease, box-shadow 220ms ease, opacity 180ms ease;
}

.discovery-card:hover {
  z-index: 2;
  box-shadow: 12px 12px 0 var(--ink);
  transform: translate(-4px, -4px);
}

.discovery-card.is-hidden {
  display: none;
}

.discovery-card--dark {
  --card: #201b20;
  --ink: #f5eee5;
  --muted: #c4b8c4;
  --line: rgba(245, 238, 229, 0.16);
  --line-strong: rgba(245, 238, 229, 0.4);
  color: #f5eee5;
}

.card-visual {
  position: relative;
  display: grid;
  min-height: 100%;
  overflow: hidden;
  place-items: center;
  border-right: 1px solid rgba(25, 23, 22, 0.52);
  background: var(--paper-2);
}

.camera-visual {
  background: #d6ff53;
}

.earbuds-visual {
  background: #bba7ff;
}

.cube-visual {
  background: #ed7056;
}

.app-visual {
  background: #5b1814;
}

.visual-index,
.visual-caption {
  position: absolute;
  z-index: 2;
  font-weight: 900;
}

.visual-index {
  top: 18px;
  left: 18px;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 30px;
  font-style: italic;
}

.visual-caption {
  right: 16px;
  bottom: 16px;
  padding: 6px 8px;
  background: #191716;
  color: #f3eee4;
  font-size: 8px;
  letter-spacing: 0.14em;
}

.camera-object {
  position: relative;
  width: 170px;
  height: 112px;
  border: 2px solid #171513;
  border-radius: 20px 20px 14px 14px;
  background: #f5eee2;
  box-shadow: 10px 12px 0 #171513;
  transform: rotate(-5deg);
}

.camera-object::before {
  position: absolute;
  top: 25px;
  left: 40px;
  width: 80px;
  height: 80px;
  border: 9px solid #171513;
  border-radius: 50%;
  background: #7062d5;
  box-shadow: inset 0 0 0 12px #bca8ff;
  content: '';
}

.camera-object::after {
  position: absolute;
  top: -20px;
  left: 18px;
  width: 40px;
  height: 22px;
  border: 2px solid #171513;
  background: #f5eee2;
  content: '';
}

.camera-object i,
.camera-object b,
.camera-object em {
  position: absolute;
  display: block;
  border: 2px solid #171513;
  background: var(--red);
}

.camera-object i {
  top: 14px;
  right: 16px;
  width: 24px;
  height: 12px;
  border-radius: 999px;
}

.camera-object b {
  top: -12px;
  right: 30px;
  width: 28px;
  height: 11px;
  background: #171513;
}

.camera-object em {
  right: -30px;
  bottom: -54px;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: transparent;
}

.earbud-case {
  position: relative;
  display: flex;
  width: 170px;
  height: 115px;
  align-items: end;
  justify-content: center;
  gap: 12px;
  padding-bottom: 20px;
  border: 2px solid #171513;
  border-radius: 26px 26px 48px 48px;
  background: #f7f0e8;
  box-shadow: 10px 12px 0 #171513;
  transform: rotate(4deg);
}

.earbud-case::before {
  position: absolute;
  top: -65px;
  left: 7px;
  width: 152px;
  height: 75px;
  border: 2px solid #171513;
  border-radius: 70px 70px 14px 14px;
  background: rgba(247, 240, 232, 0.78);
  content: '';
  transform-origin: bottom;
  transform: rotateX(-18deg);
}

.earbud-case i {
  width: 48px;
  height: 56px;
  border: 2px solid #171513;
  border-radius: 45% 45% 58% 58%;
  background: #d8ff55;
}

.sound-wave {
  position: absolute;
  border: 2px solid #171513;
  border-left: 0;
  border-radius: 0 50% 50% 0;
}

.sound-wave--one {
  width: 32px;
  height: 70px;
  margin-left: 230px;
}

.sound-wave--two {
  width: 54px;
  height: 110px;
  margin-left: 250px;
}

.cube-object {
  position: relative;
  width: 142px;
  height: 142px;
  border: 2px solid #171513;
  border-radius: 28px;
  background: rgba(240, 218, 255, 0.78);
  box-shadow: 12px 14px 0 #171513;
  transform: rotate(8deg) skew(-2deg, -2deg);
}

.cube-object::before,
.cube-object::after,
.cube-object i,
.cube-object b {
  position: absolute;
  border-radius: 50%;
  background: rgba(119, 89, 191, 0.25);
  content: '';
}

.cube-object::before {
  inset: 24px 72px 64px 20px;
}

.cube-object::after {
  inset: 65px 18px 20px 74px;
}

.cube-object i {
  inset: 22px 20px 72px 78px;
}

.cube-object b {
  inset: 76px 78px 18px 22px;
}

.app-window {
  position: relative;
  width: 176px;
  height: 234px;
  padding: 18px;
  border: 2px solid #f3eee4;
  border-radius: 22px;
  background: #211e1b;
  box-shadow: 10px 12px 0 var(--acid);
  transform: rotate(-4deg);
}

.app-window span {
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 3px;
  border-radius: 50%;
  background: var(--red);
}

.app-window span:nth-child(2) { background: var(--acid); }
.app-window span:nth-child(3) { background: var(--lilac); }

.app-window i,
.app-window b {
  position: absolute;
  right: 18px;
  left: 18px;
  display: block;
  border: 1px solid #f3eee4;
}

.app-window i {
  top: 56px;
  height: 86px;
  background: var(--lilac);
}

.app-window b {
  bottom: 18px;
  height: 54px;
  background: var(--acid);
}

.card-content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 28px;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.verdict {
  width: fit-content;
  margin: 24px 0 16px;
  padding: 6px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.verdict--green { color: #2e6b3e; }
.verdict--amber { color: #9b5518; }
.verdict--purple { color: #65449b; }
.verdict--red { color: #ff765d; }

.card-content h3 {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(2.4rem, 3.3vw, 4.6rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.card-deck {
  margin: 20px 0;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.35;
}

.truth-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 8px 0 18px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.truth-grid div {
  min-width: 0;
  padding: 12px 10px 12px 0;
}

.truth-grid div + div {
  padding-left: 10px;
  border-left: 1px solid var(--line);
}

.truth-grid span,
.about-aside span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.truth-grid strong {
  display: block;
  font-size: 11px;
  line-height: 1.25;
}

.card-copy {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.92rem;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: auto;
}

.source-link {
  padding-bottom: 3px;
  font-size: 11px;
}

.save-button {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 8px;
  padding: 0 13px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.save-button[aria-pressed="true"] {
  background: var(--acid);
  color: #171513;
}

.decision-lab {
  overflow: hidden;
  padding-block: 110px;
  background: #1b1817;
  color: #f3eee4;
}

.decision-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 7vw;
}

.lab-copy {
  align-self: center;
}

.lab-copy .eyebrow {
  color: var(--acid);
}

.lab-copy p:not(.eyebrow) {
  max-width: 500px;
  margin: 28px 0 34px;
  color: #bdb3aa;
  font-size: 1.05rem;
}

.question-stack {
  margin: 0;
  padding: 0;
  list-style: none;
}

.question-stack li {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 20px;
  padding: 26px 0;
  border-top: 1px solid rgba(243, 238, 228, 0.2);
}

.question-stack li:last-child {
  border-bottom: 1px solid rgba(243, 238, 228, 0.2);
}

.question-stack li > span {
  color: var(--acid);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 28px;
  font-style: italic;
}

.question-stack strong {
  display: block;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.5rem, 2.2vw, 2.4rem);
  font-weight: 400;
  line-height: 1.1;
}

.question-stack p {
  margin: 8px 0 0;
  color: #aaa097;
  font-size: 0.9rem;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
}

.method-card {
  min-height: 380px;
  padding: 25px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.method-number {
  display: block;
  min-height: 120px;
  color: var(--red);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 68px;
  font-style: italic;
}

.proof-tag {
  width: fit-content;
  margin: 0 0 18px;
  padding: 5px 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.method-card h3 {
  margin: 0 0 16px;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
}

.method-card > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.about {
  padding-top: 10px;
}

.about-panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(180px, 0.32fr);
  gap: 5vw;
  padding: 60px;
  background: var(--oxblood);
  color: #f3eee4;
}

.about-mark {
  display: grid;
  width: 150px;
  height: 150px;
  place-items: center;
  border-radius: 35px;
  background: var(--acid);
  color: #171513;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 100px;
  font-style: italic;
  transform: rotate(-5deg);
}

.about-copy .eyebrow {
  color: var(--acid);
}

.about-copy > p:not(.eyebrow) {
  max-width: 680px;
  margin: 28px 0 0;
  color: #d9ccc2;
  font-size: 1.08rem;
}

.about-aside {
  align-self: stretch;
  padding-left: 28px;
  border-left: 1px solid rgba(243, 238, 228, 0.28);
}

.about-aside span {
  color: #cdbeb4;
}

.about-aside strong {
  display: block;
  margin-top: 22px;
  color: var(--acid);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(2.2rem, 3.5vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.site-footer {
  padding: 54px 4vw 28px;
  border-top: 1px solid var(--line-strong);
}

.footer-top,
.footer-bottom {
  display: grid;
  align-items: center;
  gap: 24px;
}

.footer-top {
  grid-template-columns: 1fr auto 1fr;
  padding-bottom: 34px;
}

.footer-top p {
  margin: 0;
  color: var(--muted);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.4rem;
  font-style: italic;
}

.back-top {
  justify-self: end;
}

.footer-bottom {
  grid-template-columns: 1fr auto 1fr;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.footer-bottom p {
  margin: 0;
}

.footer-bottom p:nth-child(2) {
  text-align: center;
}

.footer-bottom p:last-child {
  text-align: right;
}

.toast {
  position: fixed;
  z-index: 100;
  right: 22px;
  bottom: 22px;
  max-width: 300px;
  padding: 12px 16px;
  border: 1px solid #171513;
  background: var(--acid);
  color: #171513;
  box-shadow: 5px 5px 0 #171513;
  font-size: 12px;
  font-weight: 800;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.error-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
}

.error-shell {
  width: min(700px, calc(100% - 40px));
  padding: 44px;
  border: 1px solid var(--line-strong);
  background: var(--card);
  box-shadow: 14px 14px 0 var(--red);
}

.error-shell .brand {
  margin-bottom: 70px;
}

.error-shell h1 {
  font-size: clamp(3.5rem, 10vw, 7rem);
}

.error-shell > p:not(.eyebrow) {
  margin: 26px 0;
  color: var(--muted);
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    min-height: 720px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .hero-visual {
    min-height: 720px;
  }

  .discovery-card {
    grid-template-columns: 0.82fr 1.18fr;
  }

  .discovery-grid {
    grid-template-columns: 1fr;
  }

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

  .about-panel {
    grid-template-columns: auto 1fr;
  }

  .about-aside {
    display: none;
  }
}

@media (max-width: 760px) {
  html {
    scroll-padding-top: 70px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 70px;
    padding-inline: 18px;
  }

  .brand-word,
  .desktop-nav,
  .saved-indicator,
  .icon-button {
    display: none;
  }

  .menu-button {
    display: inline-flex;
  }

  .mobile-nav {
    top: 70px;
  }

  .hero-copy {
    min-height: auto;
    padding: 96px 22px 66px;
  }

  .hero h1 {
    font-size: clamp(3.4rem, 17vw, 5.2rem);
  }

  .hero-lede {
    margin-top: 28px;
    font-size: 1rem;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .trust-line {
    margin-top: 42px;
  }

  .hero-visual {
    min-height: 540px;
    padding: 16px;
  }

  .hero-frame {
    inset: 50px 16px 36px;
    border-radius: 110px 8px 8px;
  }

  .hero-frame img {
    object-position: 66% center;
  }

  .hero-note {
    min-width: 126px;
  }

  .hero-note--top {
    top: 3%;
    left: 4%;
  }

  .hero-note--bottom {
    right: 3%;
    bottom: 2%;
  }

  .orbit-stamp {
    top: 3%;
    right: 3%;
    width: 72px;
    height: 72px;
  }

  .orbit-stamp span {
    max-width: 60px;
    font-size: 7px;
  }

  .section-shell {
    width: min(100% - 36px, 720px);
  }

  .discover,
  .method,
  .about {
    padding-block: 82px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 38px;
  }

  .section-heading h2,
  .lab-copy h2,
  .about-copy h2 {
    font-size: clamp(3rem, 14vw, 5rem);
  }

  .filter-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .filter-chip {
    flex: 0 0 auto;
  }

  .discovery-card {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .card-visual {
    min-height: 340px;
    border-right: 0;
    border-bottom: 1px solid rgba(25, 23, 22, 0.52);
  }

  .card-content {
    padding: 24px 20px 26px;
  }

  .card-content h3 {
    font-size: 3.4rem;
  }

  .truth-grid {
    grid-template-columns: 1fr;
  }

  .truth-grid div,
  .truth-grid div + div {
    padding: 10px 0;
    border-left: 0;
  }

  .truth-grid div + div {
    border-top: 1px solid var(--line);
  }

  .decision-lab {
    padding-block: 78px;
  }

  .decision-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .question-stack li {
    grid-template-columns: 48px 1fr;
  }

  .method-grid {
    grid-template-columns: 1fr;
  }

  .method-card {
    min-height: 320px;
  }

  .about {
    padding-top: 0;
  }

  .about-panel {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 34px 24px;
  }

  .about-mark {
    width: 92px;
    height: 92px;
    border-radius: 22px;
    font-size: 62px;
  }

  .about-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-top,
  .footer-bottom {
    grid-template-columns: 1fr;
  }

  .footer-top p {
    font-size: 1.15rem;
  }

  .back-top {
    justify-self: start;
  }

  .footer-bottom p:nth-child(2),
  .footer-bottom p:last-child {
    text-align: left;
  }

  .brand--footer .brand-word,
  .brand--footer > span:last-child {
    display: inline;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}