/* Homepage principles and proof sequence. Scoped to preserve the rest of the site. */
.method-proof-section {
  padding-top: 78px;
  padding-bottom: 64px;
  background: var(--bg-black);
  color: var(--text-secondary);
}

.method-proof-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

.method-proof-heading .eyebrow,
.proof-copy .eyebrow {
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.method-proof-heading h2 {
  max-width: 18ch;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 4.2vw, 3.8rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.principles-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border-dark);
  list-style: none;
}

.principle-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 28px;
  padding: 25px 0 27px;
  border-bottom: 1px solid var(--border-dark);
}

.principle-number {
  padding-top: 4px;
  color: #ff6b75;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.5;
}

.principle-row h3 {
  margin-bottom: 7px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.1vw, 1.75rem);
  line-height: 1.2;
}

.principle-row p {
  max-width: 64ch;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.58;
  text-wrap: pretty;
}

.proof-block {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 0;
  margin-top: 52px;
  border-top: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-dark);
}

.proof-visual {
  width: 100%;
  min-width: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.proof-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.proof-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  padding: 40px 0 40px clamp(32px, 5vw, 72px);
  border-left: 1px solid var(--border-dark);
}

.proof-copy h3 {
  max-width: 15ch;
  margin-bottom: 15px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.proof-copy > p:not(.eyebrow) {
  max-width: 48ch;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  text-wrap: pretty;
}

.proof-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
  transition: color 0.2s ease, gap 0.2s ease;
}

.proof-link:hover,
.proof-link:focus-visible {
  gap: 14px;
  color: #ff6b75;
}

.proof-link:focus-visible {
  outline: 2px solid #ff6b75;
  outline-offset: 5px;
}

@media (max-width: 1000px) {
  .method-proof-section {
    padding-top: 64px;
    padding-bottom: 58px;
  }

  .proof-block {
    grid-template-columns: 1fr;
  }

  .proof-visual {
    max-width: 640px;
    aspect-ratio: 16 / 10;
    margin: 0 auto;
  }

  .proof-copy {
    padding: 34px 0 38px;
    border-top: 1px solid var(--border-dark);
    border-left: 0;
  }
}

@media (max-width: 760px) {
  .method-proof-section {
    padding-top: 56px;
    padding-bottom: 52px;
  }

  .method-proof-heading {
    margin-bottom: 32px;
  }

  .method-proof-heading h2 {
    max-width: 17ch;
    font-size: clamp(2.2rem, 8.5vw, 3.1rem);
  }

  .principle-row {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
    padding: 22px 0 24px;
  }

  .principle-row h3 {
    font-size: 1.35rem;
  }

  .principle-row p,
  .proof-copy > p:not(.eyebrow) {
    font-size: 0.95rem;
  }

  .proof-block {
    margin-top: 40px;
  }

  .proof-copy {
    padding: 30px 0 34px;
  }

  .proof-copy h3 {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }
}

@media (max-width: 420px) {
  .principle-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .principle-number {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .proof-link {
    transition: none;
  }
}