.content-page main { overflow: hidden; }
.content-page .nav__back { color: var(--muted); }
.content-page .nav__back:hover { color: var(--paper); }

.content-hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(440px, 1.1fr);
  align-items: center;
  gap: clamp(48px, 8vw, 112px);
  padding-top: 126px;
  padding-bottom: 88px;
}

.content-hero__copy h1 {
  max-width: 11ch;
  margin: 25px 0 30px;
  font-size: clamp(3.8rem, 7vw, 7rem);
  line-height: 0.96;
}

.content-hero__lead {
  max-width: 58ch;
  color: var(--paper-soft);
  font-size: clamp(1rem, 1.25vw, 1.16rem);
  line-height: 1.75;
}

.content-hero__copy .btn { margin-top: 38px; }

.content-hero__visual {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--ink-soft);
  aspect-ratio: 4 / 3;
}

.content-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7, 8, 7, 0.86));
}

.content-hero__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.08);
}

.content-hero__visual figcaption {
  position: absolute;
  z-index: 1;
  inset: auto 22px 18px;
  color: var(--paper-soft);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.content-intro,
.verification {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(56px, 10vw, 152px);
  padding-top: clamp(100px, 12vw, 156px);
  padding-bottom: clamp(100px, 12vw, 156px);
  border-top: 1px solid var(--line);
}

.content-intro h2,
.response h2,
.verification h2,
.content-thesis h2 {
  max-width: 850px;
  font-size: clamp(3rem, 5.8vw, 5.9rem);
}

.content-intro h2 { margin-bottom: 34px; }
.content-intro div > p,
.verification__copy > p:not(.overline),
.content-thesis > p:not(.overline) {
  max-width: 64ch;
  margin-top: 20px;
  color: var(--paper-soft);
  font-size: 1rem;
  line-height: 1.85;
}

.response {
  padding-top: clamp(100px, 12vw, 156px);
  padding-bottom: clamp(100px, 12vw, 156px);
  border-top: 1px solid var(--signal);
}

.response__head {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(56px, 10vw, 152px);
}

.response__steps {
  margin-top: 64px;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.response__steps li {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

.response__steps li > span {
  color: var(--signal);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
}

.response__steps h3 {
  margin-bottom: 10px;
  font-family: "Manrope", sans-serif;
  font-size: 1.16rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.response__steps p {
  max-width: 64ch;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.verification__copy h2 { margin: 22px 0 30px; }
.verification__layers { border-top: 1px solid var(--line-strong); }
.verification__layers div {
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--line);
}
.verification__layers dt {
  color: var(--signal);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.verification__layers dd {
  max-width: 48ch;
  margin-top: 12px;
  color: var(--paper-soft);
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.45rem, 2.7vw, 2.15rem);
  line-height: 1.22;
}

.content-thesis {
  padding-top: clamp(100px, 12vw, 156px);
  padding-bottom: clamp(100px, 12vw, 156px);
  border-top: 1px solid var(--line);
}
.content-thesis h2 { max-width: 970px; margin: 22px 0 34px; }
.content-thesis .text-link { margin-top: 36px; }

.sources {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(56px, 10vw, 152px);
  padding-top: 54px;
  padding-bottom: 88px;
  border-top: 1px solid var(--line);
}
.sources ul { list-style: none; }
.sources li { padding: 18px 0; border-bottom: 1px solid var(--line); }
.sources a {
  color: var(--paper-soft);
  border-bottom: 1px solid var(--line-strong);
  font-size: 0.86rem;
  line-height: 1.7;
}
.sources a:hover { color: var(--signal); border-color: var(--signal); }

@media (max-width: 980px) {
  .content-hero { min-height: auto; grid-template-columns: 1fr; padding-top: 154px; }
  .content-hero__copy { max-width: 800px; }
  .content-hero__visual { max-width: 860px; }
  .content-intro,
  .response__head,
  .verification,
  .sources { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 720px) {
  .content-hero { padding-top: 126px; padding-bottom: 76px; }
  .content-hero__copy h1 { font-size: clamp(3.4rem, 15vw, 5.2rem); }
  .content-hero__visual figcaption { inset: auto 16px 14px; }
  .response__steps li { grid-template-columns: 48px minmax(0, 1fr); }
}

@media (max-width: 560px) {
  .content-page .nav__back { display: none; }
}