/* SIGNAL AUDIT RESEARCH — WHITEPAPER TEMPLATE v1.0 */

.wp-page {
  --wp-ink: #111111;
  --wp-muted: #686868;
  --wp-line: #dedede;
  background: #ffffff;
  color: var(--wp-ink);
  font-family: var(--sa-font-sans);
}

.wp-container {
  width: min(100% - 48px, 1120px);
  margin-inline: auto;
}

.wp-hero {
  padding: clamp(72px, 10vw, 144px) 0 64px;
  border-bottom: 1px solid var(--wp-line);
}

.wp-eyebrow {
  margin: 0 0 32px;
  font-family: var(--sa-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.wp-hero h1 {
  max-width: 1040px;
  margin: 0;
  font-family: var(--sa-font-heading);
  font-size: clamp(38px, 5.5vw, 76px);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.035em;
  overflow-wrap: break-word;
}

.wp-subtitle {
  max-width: 760px;
  margin: 32px 0 0;
  color: var(--wp-muted);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.55;
}

.wp-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--wp-line);
  font-family: var(--sa-font-mono);
  font-size: 11px;
  line-height: 1.8;
  text-transform: uppercase;
}

/* RESEARCH LAYOUT */

.wp-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: clamp(48px, 6vw, 100px);
  padding-block: 88px 120px;
}

.wp-toc {
  align-self: start;
  position: sticky;
  top: 32px;
}

.wp-toc h2 {
  margin: 0 0 24px;
  font-family: var(--sa-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.wp-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.wp-toc li {
  margin-bottom: 16px;
}

.wp-toc a {
  color: var(--wp-muted);
  font-size: 13px;
  line-height: 1.6;
  text-decoration: none;
}

.wp-toc a:hover,
.wp-toc a:focus-visible {
  color: var(--wp-ink);
  text-decoration: underline;
}

.wp-article {
  min-width: 0;
  max-width: 740px;
}

.wp-section {
  margin-bottom: 88px;
  scroll-margin-top: 32px;
}

.wp-section-number {
  display: block;
  margin-bottom: 20px;
  color: var(--wp-muted);
  font-family: var(--sa-font-mono);
  font-size: 12px;
}

.wp-section h2 {
  margin: 0 0 28px;
  font-family: var(--sa-font-heading);
  font-size: clamp(25px, 3vw, 38px);
  font-weight: 400;
  line-height: 1.25;
}

.wp-section h3 {
  margin: 40px 0 18px;
  font-size: 21px;
  line-height: 1.4;
}

.wp-section p,
.wp-section li {
  font-size: 17px;
  line-height: 1.85;
}

.wp-section p {
  margin: 0 0 24px;
}

.wp-section ul,
.wp-section ol {
  margin: 0 0 28px;
  padding-left: 24px;
}

.wp-section a {
  color: inherit;
  text-underline-offset: 3px;
}

/* EDITORIAL ELEMENTS */

.wp-thesis {
  margin: 48px 0;
  padding: 32px 0 32px 28px;
  border-left: 3px solid var(--wp-ink);
}

.wp-thesis p {
  margin: 0;
  font-size: clamp(21px, 2.4vw, 28px);
  font-weight: 600;
  line-height: 1.5;
}

.wp-figure {
  margin: 48px 0;
}

.wp-figure img {
  display: block;
  max-width: 100%;
  height: auto;
}

.wp-figure figcaption {
  margin-top: 16px;
  color: var(--wp-muted);
  font-family: var(--sa-font-mono);
  font-size: 11px;
  line-height: 1.7;
}

.wp-references {
  border-top: 1px solid var(--wp-line);
  padding-top: 32px;
}

.wp-back {
  display: inline-block;
  margin-bottom: 64px;
  color: var(--wp-ink);
  font-size: 14px;
  text-decoration: none;
}

.wp-back:hover {
  text-decoration: underline;
}

/* RESPONSIVE LAYOUT */

@media (max-width: 860px) {
  .wp-layout {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-block: 56px 80px;
  }

  .wp-toc {
    position: static;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--wp-line);
  }

  .wp-hero {
    padding-block: 72px 48px;
  }

  .wp-meta {
    margin-top: 40px;
  }
}

@media (max-width: 600px) {
  .wp-container {
    width: min(100% - 32px, 1120px);
  }

  .wp-hero h1 {
    font-size: clamp(32px, 9vw, 46px);
  }

  .wp-section p,
  .wp-section li {
    font-size: 16px;
  }

  .wp-thesis {
    padding-left: 20px;
  }
}

/* ARCHITECTURE FIGURE */

.wp-architecture {
  display: flex;
  align-items: stretch;
  gap: 12px;
}

.wp-architecture-node {
  display: flex;
  flex: 1;
  min-width: 0;
  flex-direction: column;
  gap: 12px;
  padding: 22px 16px;
  border: 1px solid var(--wp-line);
}

.wp-architecture-core {
  background: #f4f4f4;
  border-color: var(--wp-ink);
}

.wp-architecture-label {
  font-family: var(--sa-font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
}

.wp-architecture-node strong {
  font-size: 16px;
  line-height: 1.35;
}

.wp-architecture-node > span:last-child {
  color: var(--wp-muted);
  font-size: 12px;
  line-height: 1.5;
}

.wp-architecture-arrow {
  align-self: center;
  font-size: 22px;
}

@media (max-width: 700px) {
  .wp-architecture {
    flex-direction: column;
  }

  .wp-architecture-arrow {
    transform: rotate(90deg);
  }
}