/* research_and_teaching.css — Research and Teaching page-specific styles */

/* ============================================================
   Page Start — header offset
   ============================================================ */

.rt-page-start {
  padding-top: calc(var(--section-pad) + 80px);
}

/* ============================================================
   Hero
   ============================================================ */

.rt-hero {
  background: var(--color-bg);
}

.rt-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}

.rt-crumb {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--sp-4);
}

.rt-crumb a {
  color: var(--color-primary);
  text-decoration: none;
}

.rt-crumb a:hover { text-decoration: underline; }

.rt-crumb span[aria-hidden] { opacity: 0.35; }

.rt-hero-text .section-label {
  margin-bottom: var(--sp-3);
}

.rt-hero-text h1 {
  font-size: clamp(2.8rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--color-dark-navy);
  margin-bottom: var(--sp-5);
}

.rt-hero-lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--sp-7);
}

/* counters bar */
.rt-hero-counters {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  padding: var(--sp-5) 0;
  border-top: 1px solid var(--color-steel);
}

.rt-counter {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.rt-counter-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.05em;
  line-height: 1;
}

.rt-counter-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.rt-counter-divider {
  width: 1px;
  height: 36px;
  background: var(--color-steel);
  flex-shrink: 0;
}

/* right column: role cards stacked */
.rt-hero-roles {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

/* ============================================================
   Research Roles — shared card base kept below, new sub card
   ============================================================ */

.rt-roles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-5);
  margin-bottom: var(--sp-8);
}

.rt-role-card {
  border-radius: var(--radius-card);
  padding: var(--sp-7) var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  position: relative;
  overflow: hidden;
  transition:
    transform    var(--t-base) var(--ease-spring),
    box-shadow   var(--t-base) var(--ease-out);
}

.rt-role-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
}

.rt-role-card--chief {
  background-color: var(--color-dark-navy);
  box-shadow: 0 8px 32px rgba(4, 60, 114, 0.18);
}

.rt-role-card--pi {
  background-color: var(--color-primary);
  box-shadow: 0 8px 32px rgba(63, 127, 188, 0.22);
}

.rt-role-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  transform: translate(40%, 40%);
  pointer-events: none;
}

.rt-role-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  color: var(--color-accent-cyan);
}

.rt-role-level {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-cyan);
}

.rt-role-card h3 {
  font-size: var(--text-h5);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.25;
  margin-bottom: 0;
}

.rt-role-card p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.75;
  margin-bottom: 0;
  flex: 1;
}

.rt-role-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.375rem 0.875rem;
  border-radius: 100px;
  align-self: flex-start;
  margin-top: var(--sp-2);
}

.rt-role-badge--chief {
  background-color: rgba(0, 188, 228, 0.15);
  color: var(--color-accent-cyan);
  border: 1px solid rgba(0, 188, 228, 0.25);
}

.rt-role-badge i {
  font-size: 0.8125rem;
}

.rt-role-studies {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--sp-2);
}

.rt-study-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.3125rem 0.875rem;
  border-radius: 100px;
}

.rt-sub-investigator {
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  padding: var(--sp-7) var(--sp-7);
  box-shadow: var(--shadow-card);
  border-left: 4px solid var(--color-accent-cyan);
}

.rt-sub-investigator h3 {
  font-size: var(--text-h5);
  font-weight: 700;
  color: var(--color-dark-navy);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--sp-3);
}

.rt-sub-investigator h3 i {
  color: var(--color-primary);
}

.rt-sub-investigator > p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--sp-5);
  line-height: 1.65;
}

.rt-study-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.rt-study-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-dark-navy);
  background-color: var(--color-bg);
  border: 1.5px solid var(--color-steel);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  transition:
    background-color var(--t-fast) var(--ease-in-out),
    border-color     var(--t-fast) var(--ease-in-out),
    color            var(--t-fast) var(--ease-in-out);
}

.rt-study-item:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.rt-study-item i {
  color: var(--color-primary);
  font-size: 0.875rem;
  transition: color var(--t-fast) var(--ease-in-out);
}

.rt-study-item:hover i {
  color: var(--color-accent-cyan);
}

/* sub-investigator card variant */
.rt-role-card--sub {
  background-color: rgba(63, 127, 188, 0.07);
  border: 1.5px solid var(--color-steel);
  box-shadow: var(--shadow-card);
}

.rt-role-card--sub .rt-role-level {
  color: var(--color-primary);
}

.rt-role-card--sub .rt-role-card-icon {
  background-color: rgba(63, 127, 188, 0.1);
  color: var(--color-primary);
}

.rt-role-card--sub h3 {
  color: var(--color-dark-navy);
}

.rt-role-card--sub .rt-study-tag {
  color: var(--color-dark-navy);
  background-color: var(--color-white);
  border-color: var(--color-steel);
}

/* ============================================================
   Centred section heads used across all sections
   ============================================================ */

.rt-sec-head {
  text-align: center;
  margin-bottom: var(--sp-10);
}

.rt-sec-head h2 {
  margin-top: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.rt-sec-head p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 620px;
  margin-inline: auto;
}

.rt-sec-head--light h2 { color: var(--color-white); }
.rt-sec-head--light p  { color: rgba(255, 255, 255, 0.55); }

/* ============================================================
   Publications
   ============================================================ */

.rt-publications {
  background-color: var(--color-cream);
}

.rt-pub-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  counter-reset: pub-counter;
}

.rt-pub-item {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  padding: var(--sp-5) var(--sp-6);
  box-shadow: var(--shadow-card);
  border-left: 3px solid transparent;
  transition:
    border-color var(--t-fast) var(--ease-in-out),
    box-shadow   var(--t-base) var(--ease-out),
    transform    var(--t-base) var(--ease-spring);
}

.rt-pub-item:hover {
  border-left-color: var(--color-primary);
  box-shadow: var(--shadow-card-hover);
  transform: translateX(3px);
}

.rt-pub-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.rt-pub-body {
  flex: 1;
  min-width: 0;
}

.rt-pub-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-2);
  flex-wrap: wrap;
}

.rt-pub-year {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-accent-cyan);
  padding: 0.1875rem 0.625rem;
  border-radius: 100px;
  letter-spacing: 0.04em;
}

.rt-pub-journal {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-gray);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background-color: var(--color-bg);
  padding: 0.1875rem 0.625rem;
  border-radius: 100px;
  border: 1px solid var(--color-steel);
}

.rt-pub-citation {
  font-size: var(--text-sm);
  color: var(--color-text-dark);
  line-height: 1.8;
  margin-bottom: var(--sp-2);
}

.rt-pub-citation strong {
  color: var(--color-dark-navy);
  font-weight: 700;
}

.rt-pub-citation em {
  font-style: italic;
  color: var(--color-text-muted);
}

.rt-pub-doi {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease-in-out);
  word-break: break-all;
}

.rt-pub-doi:hover {
  color: var(--color-accent-cyan);
}

.rt-pub-doi i {
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* ============================================================
   Abstracts
   ============================================================ */

.rt-abstracts {
  background-color: var(--color-bg);
}

.rt-abstract-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.rt-abstract-item {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  padding: var(--sp-5) var(--sp-6);
  box-shadow: var(--shadow-card);
  border-left: 3px solid transparent;
  transition:
    border-color var(--t-fast) var(--ease-in-out),
    box-shadow   var(--t-base) var(--ease-out),
    transform    var(--t-base) var(--ease-spring);
}

.rt-abstract-item:hover {
  border-left-color: var(--color-accent-cyan);
  box-shadow: var(--shadow-card-hover);
  transform: translateX(3px);
}

.rt-abstract-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: rgba(63, 127, 188, 0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.rt-abstract-icon--award {
  background-color: rgba(251, 191, 36, 0.1);
  color: #d97706;
}

.rt-abstract-body {
  flex: 1;
  min-width: 0;
}

.rt-abstract-year {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-dark-navy);
  padding: 0.1875rem 0.625rem;
  border-radius: 100px;
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-2);
}

.rt-abstract-award-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #92400e;
  background-color: rgba(251, 191, 36, 0.15);
  border: 1px solid rgba(251, 191, 36, 0.35);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  margin-bottom: var(--sp-2);
  margin-left: var(--sp-2);
}

.rt-abstract-award-badge i {
  color: #d97706;
  font-size: 0.6875rem;
}

.rt-abstract-body p {
  font-size: var(--text-sm);
  color: var(--color-text-dark);
  line-height: 1.8;
  margin-bottom: 0;
}

.rt-abstract-body p strong {
  color: var(--color-dark-navy);
  font-weight: 700;
}

.rt-abstract-body p em {
  font-style: italic;
  color: var(--color-text-muted);
}

/* ============================================================
   Teaching
   ============================================================ */

.rt-teaching {
  background-color: var(--color-dark-navy);
}

.rt-teaching .section-label {
  background-color: rgba(0, 188, 228, 0.08);
  border: 1px solid rgba(0, 188, 228, 0.2);
  color: var(--color-accent-cyan);
}

.rt-teaching .section-header--centered h2 {
  color: var(--color-white);
}

.rt-teaching .section-header--centered p {
  color: rgba(255, 255, 255, 0.6);
}

.rt-teaching-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}

.rt-teaching-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  padding: var(--sp-7) var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  transition:
    background-color var(--t-base) var(--ease-out),
    border-color     var(--t-base) var(--ease-out),
    transform        var(--t-base) var(--ease-spring);
}

.rt-teaching-card:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-5px);
}

.rt-teaching-card--featured {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 16px 40px rgba(63, 127, 188, 0.28);
}

.rt-teaching-card--featured:hover {
  background-color: rgba(63, 127, 188, 0.9);
  border-color: var(--color-primary);
}

.rt-teaching-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  color: var(--color-accent-cyan);
}

.rt-teaching-card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-cyan);
  background-color: rgba(0, 188, 228, 0.1);
  border: 1px solid rgba(0, 188, 228, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  align-self: flex-start;
}

.rt-teaching-card-tag--alt {
  color: rgba(255, 255, 255, 0.85);
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.rt-teaching-card h3 {
  font-size: var(--text-h5);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.3;
  margin-bottom: 0;
}

.rt-teaching-card p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.75;
  margin-bottom: 0;
  flex: 1;
}

.rt-teaching-card-detail {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.4);
  margin-top: auto;
  padding-top: var(--sp-3);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.rt-teaching-card-detail i {
  color: rgba(0, 188, 228, 0.55);
  font-size: 0.875rem;
}

/* ============================================================
   Contact Section
   ============================================================ */

.rt-contact {
  background-color: var(--color-bg);
}

.rt-contact-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--sp-12);
  align-items: start;
}

.rt-contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.rt-contact-cta h2 {
  margin-bottom: var(--sp-4);
}

.rt-contact-cta > p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: var(--sp-4);
}

.rt-contact-options {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
}

.rt-contact-option {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-steel);
  border-radius: var(--radius-card);
  padding: var(--sp-4);
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition:
    border-color var(--t-fast) var(--ease-in-out),
    transform    var(--t-base) var(--ease-spring),
    box-shadow   var(--t-base) var(--ease-out);
}

.rt-contact-option:hover {
  border-color: var(--color-primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-card-hover);
}

.rt-contact-option-icon {
  width: 44px;
  height: 44px;
  background-color: rgba(63, 127, 188, 0.07);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.125rem;
  flex-shrink: 0;
  transition:
    background-color var(--t-base) var(--ease-in-out),
    color            var(--t-base) var(--ease-in-out);
}

.rt-contact-option:hover .rt-contact-option-icon {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.rt-contact-option strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-dark-navy);
  line-height: 1.2;
}

.rt-contact-option span {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.rt-contact-option > i:last-child {
  margin-left: auto;
  color: var(--color-text-gray);
  font-size: 0.875rem;
  flex-shrink: 0;
  transition: color var(--t-fast) var(--ease-in-out);
}

.rt-contact-option:hover > i:last-child {
  color: var(--color-primary);
}

/* ============================================================
   Shared Card Components
   ============================================================ */

.contact-details-card {
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  padding: var(--sp-6);
  box-shadow: var(--shadow-card);
}

.contact-details-card h3 {
  font-size: var(--text-h5);
  font-weight: 700;
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.contact-detail-item {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  margin-bottom: var(--sp-4);
}

.contact-detail-item:last-of-type {
  margin-bottom: var(--sp-5);
}

.contact-detail-icon {
  width: 36px;
  height: 36px;
  background-color: rgba(63, 127, 188, 0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 0.9375rem;
  flex-shrink: 0;
}

.contact-detail-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-gray);
  margin-bottom: 0.2rem;
}

.contact-detail-value {
  font-size: var(--text-sm);
  color: var(--color-text-dark);
  line-height: 1.65;
  margin-bottom: 0;
  font-style: normal;
}

.contact-detail-value a {
  color: var(--color-primary);
  font-size: var(--text-sm);
  transition: color var(--t-fast) var(--ease-in-out);
}

.contact-detail-value a:hover {
  color: var(--color-accent-cyan);
}

.social-links {
  display: flex;
  gap: var(--sp-2);
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: var(--color-bg);
  border: 1.5px solid var(--color-steel);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-gray);
  font-size: 0.9375rem;
  text-decoration: none;
  transition:
    background-color var(--t-base) var(--ease-in-out),
    color            var(--t-base) var(--ease-in-out),
    border-color     var(--t-base) var(--ease-in-out);
}

.social-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.mailing-list-card {
  background-color: var(--color-primary);
  border-radius: var(--radius-card);
  padding: var(--sp-6);
}

.mailing-list-card h3 {
  font-size: var(--text-h6);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--sp-2);
}

.mailing-list-card p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: var(--sp-4);
  line-height: 1.65;
}

.mailing-list-form {
  display: flex;
  gap: 0.5rem;
}

.mailing-list-form input {
  flex: 1;
  padding: 0.875rem 1rem;
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  border-radius: 7px;
  font-family: 'Inter', sans-serif;
  font-size: var(--text-sm);
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  min-width: 0;
  transition:
    border-color var(--t-fast) var(--ease-in-out),
    background   var(--t-fast) var(--ease-in-out);
}

.mailing-list-form input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.mailing-list-form input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.55);
  background-color: rgba(255, 255, 255, 0.14);
}

.mailing-list-form button {
  padding: 0.875rem 1.375rem;
  background-color: var(--color-white);
  color: var(--color-primary);
  border: none;
  border-radius: 7px;
  font-family: 'Inter', sans-serif;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color var(--t-base) var(--ease-in-out),
    color            var(--t-base) var(--ease-in-out),
    transform        var(--t-base) var(--ease-spring);
}

.mailing-list-form button:hover {
  background-color: var(--color-accent-cyan);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1199px) {
  .rt-contact-inner {
    gap: var(--sp-8);
  }
}

@media (max-width: 991px) {
  .rt-hero-inner {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }

  .rt-hero-text h1 { font-size: 2.8rem; }

  .rt-roles-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
  }

  .rt-teaching-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .rt-contact-inner {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }

  .rt-contact-sidebar { order: 2; }
  .rt-contact-cta     { order: 1; }
}

@media (max-width: 767px) {
  .rt-hero-title {
    font-size: clamp(2.25rem, 8vw, 3.5rem);
  }

  .rt-hero-subtitle {
    font-size: var(--text-h6);
  }

  .rt-hero-actions {
    flex-direction: column;
  }

  .rt-hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .rt-hero-stats {
    gap: var(--sp-4);
  }

  .rt-hero-stat-divider {
    display: none;
  }

  .rt-hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--sp-3);
  }

  .rt-pub-item {
    padding: var(--sp-4);
  }

  .rt-abstract-item {
    padding: var(--sp-4);
  }

  .rt-sub-investigator {
    padding: var(--sp-5);
  }

  .mailing-list-form {
    flex-direction: column;
  }

  .mailing-list-form button {
    width: 100%;
  }
}

@media (max-width: 575px) {
  .rt-hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .rt-pub-item,
  .rt-abstract-item {
    flex-direction: column;
    gap: var(--sp-3);
  }

  .rt-pub-num {
    align-self: flex-start;
  }

  .rt-abstract-icon {
    align-self: flex-start;
  }
}