html.ref-internal.tir-proteros-shell {
  --rp-hero-h: 550px;
  --rp-hero-h-mobile: 181px;
  --rp-inner-title: 42px;
  --rp-inner-title-lh: 48px;
  --rp-inner-title-ls: 6px;
  --rp-content-max: 70ch;
  --rp-service-title: 21px;
  --rp-service-ls: 3.15px;
  --rp-section-y: clamp(2.5rem, 5vw, 4rem);
}

/* Buttons (reference system) */
html.ref-internal .pr-btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.2s var(--pr-ease), color 0.2s var(--pr-ease), border-color 0.2s var(--pr-ease);
}

html.ref-internal .pr-btn--primary {
  background: var(--color-cta-primary-bg);
  color: var(--color-cta-primary-text);
  border-color: var(--color-cta-primary-border);
}

html.ref-internal .pr-btn--primary:hover {
  background: var(--color-cta-primary-hover-bg);
  border-color: var(--color-cta-primary-hover-border);
  color: var(--color-cta-primary-hover-text);
}

html.ref-internal .pr-btn--outline {
  background: var(--color-cta-secondary-bg);
  color: var(--color-cta-secondary-text);
  border-color: var(--color-cta-secondary-border);
}

html.ref-internal .pr-btn--outline:hover {
  border-color: var(--color-cta-secondary-hover-border);
  color: var(--color-cta-secondary-hover-text);
  background: var(--color-cta-secondary-hover-bg);
}

html.ref-internal.tir-proteros-shell main,
html.ref-internal.tir-proteros-shell #main {
  padding-top: 0 !important;
  max-width: none !important;
  width: 100% !important;
  margin: 0 !important;
}

/* Hero image band */
html.ref-internal .rp-hero {
  position: relative;
  width: 100%;
  height: var(--rp-hero-h-mobile);
  overflow: hidden;
  margin: 0;
  background: var(--color-brand-primary);
}

@media (min-width: 768px) {
  html.ref-internal .rp-hero {
    height: var(--rp-hero-h);
  }
}

html.ref-internal .rp-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  display: block;
}

/* Title band */
.rp-hero-band {
  padding: clamp(2rem, 4vw, 3rem) 0;
  background: var(--ref-white);
  border-bottom: 1px solid var(--ref-line);
}

.rp-hero-band__eyebrow {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ref-ink);
}

.rp-hero-band__title {
  margin: 0 0 16px;
  max-width: none;
  font-size: clamp(1.35rem, 1.1rem + 1.2vw, var(--pr-type-display-size));
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: clamp(2px, 0.2vw + 2px, var(--pr-type-display-ls));
  text-transform: uppercase;
  color: var(--ref-ink);
}

@media (min-width: 1200px) {
  .rp-hero-band__title {
    font-size: var(--pr-type-display-size);
    line-height: var(--pr-type-display-lh);
    letter-spacing: var(--pr-type-display-ls);
  }
}

.rp-hero-band__lead {
  margin: 0;
  max-width: var(--rp-content-max);
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

.rp-hero-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* Subnav */
.rp-subnav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--ref-white);
  border-bottom: 1px solid var(--ref-line);
}

.rp-subnav__inner {
  display: flex;
  flex-wrap: wrap;
}

.rp-subnav__link {
  display: inline-block;
  padding: 1rem 1.25rem;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ref-ink);
  border-bottom: 3px solid transparent;
}

.rp-subnav__link:hover {
  color: var(--ref-gold);
  border-bottom-color: var(--ref-gold);
}

/* Sections */
.rp-section {
  padding: var(--rp-section-y) 0;
}

.rp-section--band {
  background: var(--ref-band);
}

.rp-section__title {
  margin: 0 0 20px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ref-ink);
  max-width: 48ch;
}

.rp-section__subtitle {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ref-ink);
}

.rp-section__body {
  margin: 0;
  max-width: var(--rp-content-max);
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

.rp-list {
  margin: 16px 0 0;
  padding-left: 1.25rem;
  max-width: var(--rp-content-max);
}

.rp-list li {
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

/* Split grids */
.rp-split {
  display: grid;
  gap: 40px;
  align-items: center;
}

@media (min-width: 768px) {
  .rp-split {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .rp-split--reverse .rp-split__media {
    order: -1;
  }
}

.rp-split__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--ref-band);
}

.rp-split__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rp-divider-block {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--ref-line);
}

/* Delivery */
.rp-delivery-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .rp-delivery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

.rp-delivery-card {
  padding: 28px;
  background: var(--ref-white);
  border: 1px solid var(--ref-line);
}

.rp-delivery-card h3 {
  margin: 0 0 12px;
  font-size: var(--rp-service-title);
  font-weight: 600;
  letter-spacing: var(--rp-service-ls);
  text-transform: uppercase;
}

.rp-delivery-card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

.rp-delivery-card__cap {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--ref-line);
  font-size: 14px;
  line-height: 1.55;
  color: var(--ref-muted);
}

/* Mechanisms */
.rp-mech-grid {
  display: grid;
  gap: 32px;
}

@media (min-width: 768px) {
  .rp-mech-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.rp-mech-card {
  padding-top: 24px;
  border-top: 3px solid var(--color-brand-secondary);
}

.rp-mech-card__index {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ref-gold);
}

.rp-mech-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ref-ink);
}

.rp-mech-card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

/* Comparison */
.rp-compare-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .rp-compare-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

.rp-compare-col {
  padding: 28px;
  border: 1px solid var(--ref-line);
  background: var(--ref-white);
}

.rp-compare-col--highlight {
  border-top: 3px solid var(--color-brand-secondary);
}

.rp-compare-col h3 {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Publications preview */
.rp-pub-list {
  margin-top: 24px;
  border-top: 1px solid var(--ref-line);
}

.rp-pub-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--ref-line);
  align-items: start;
}

.rp-pub-item__body {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  align-items: start;
}

.rp-pub-item__thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--ref-band);
}

.rp-pub-item__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rp-pub-item__year {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ref-ink);
}

.rp-pub-item__date {
  margin: 4px 0 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ref-muted);
}

.rp-pub-item h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ref-ink);
}

.rp-pub-item p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ref-muted);
}

/* CTA */
.rp-cta {
  padding: clamp(3rem, 6vw, 5rem) 0;
  background: var(--color-brand-primary);
  color: var(--ref-white);
}

.rp-cta h2 {
  margin: 0 0 12px;
  max-width: 24ch;
  font-size: clamp(1.5rem, 2.5vw, 32px);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-inverse) !important;
}

.rp-cta p {
  margin: 0 0 24px;
  max-width: var(--rp-content-max);
  font-size: 15px;
  line-height: 1.62;
  color: var(--color-text-inverse-muted) !important;
}

.rp-cta .pr-btn--primary {
  background: var(--color-cta-on-dark-bg) !important;
  color: var(--color-cta-on-dark-text) !important;
  border-color: var(--color-cta-on-dark-bg) !important;
}

.rp-cta .pr-btn--primary:hover {
  background: var(--color-cta-on-dark-hover-bg) !important;
  border-color: var(--color-cta-on-dark-hover-bg) !important;
  color: var(--color-cta-on-dark-hover-text) !important;
}

html.ref-internal.tir-proteros-shell .rp-cta .pr-btn--outline {
  color: var(--color-text-inverse) !important;
  border-color: rgba(255, 255, 255, 0.45) !important;
  background: transparent !important;
}

html.ref-internal.tir-proteros-shell .rp-cta .pr-btn--outline:hover {
  border-color: var(--color-text-inverse) !important;
  color: var(--color-text-inverse) !important;
  background: rgba(255, 255, 255, 0.08) !important;
}

@media (max-width: 767px) {
  .rp-hero-band__title {
    max-width: none;
  }

  .rp-pub-item,
  .rp-pub-item__body {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

/* Phase / program cards (pipeline) */
.rp-card-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .rp-card-grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .rp-card-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.rp-card {
  padding: 28px;
  border: 1px solid var(--ref-line);
  background: var(--ref-white);
}

.rp-section--band .rp-card {
  background: var(--ref-white);
}

.rp-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ref-ink);
}

.rp-card p,
.rp-card li {
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

.rp-card ul {
  margin: 8px 0 0;
  padding-left: 1.25rem;
}

.rp-disclaimer {
  margin-top: 16px;
  padding: 16px;
  border-left: 3px solid var(--color-brand-secondary);
  font-size: 14px;
  line-height: 1.55;
  color: var(--ref-muted);
  max-width: var(--rp-content-max);
}

/* FAQ (patients) */
.rp-faq {
  border-top: 1px solid var(--ref-line);
  margin-top: 24px;
}

.rp-faq details {
  border-bottom: 1px solid var(--ref-line);
  padding: 16px 0;
}

.rp-faq summary {
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  color: var(--ref-ink);
}

.rp-faq details p {
  margin: 12px 0 0;
  max-width: var(--rp-content-max);
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

/* Legal */
.rp-legal {
  padding: var(--rp-section-y) 0;
}

.rp-legal h1 {
  margin: 0 0 24px;
  font-size: clamp(1.5rem, 2.5vw, 32px);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.rp-legal h2 {
  margin: 2rem 0 12px;
  font-size: 18px;
  font-weight: 600;
}

.rp-legal p,
.rp-legal li {
  max-width: var(--rp-content-max);
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

/* Job listing */
.rp-job {
  padding: 28px 0;
  border-bottom: 1px solid var(--ref-line);
}

.rp-job h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 600;
}

.rp-job p {
  margin: 0 0 8px;
  max-width: var(--rp-content-max);
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

/* Prose content migrated from legacy longform */
.rp-prose {
  max-width: var(--rp-content-max);
}

.rp-prose h2 {
  margin: 0 0 16px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ref-ink);
}

.rp-prose h3 {
  margin: 1.5rem 0 12px;
  font-size: 18px;
  font-weight: 600;
  color: var(--ref-ink);
}

.rp-prose h4 {
  margin: 1rem 0 8px;
  font-size: 16px;
  font-weight: 600;
}

.rp-prose p,
.rp-prose li {
  font-size: 15px;
  line-height: 1.62;
  color: var(--ref-muted);
}

.rp-prose ul,
.rp-prose ol {
  margin: 8px 0 16px;
  padding-left: 1.25rem;
}

.rp-prose a {
  color: var(--ref-ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.rp-prose a:hover {
  color: var(--ref-gold);
}

.rp-prose .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 16px 0;
}

.rp-prose details.disclosure {
  border-bottom: 1px solid var(--ref-line);
  padding: 12px 0;
}

.rp-prose details.disclosure summary {
  font-weight: 600;
  cursor: pointer;
}