/* ═══════════════════════════════════════════════════════════════
   INARELS — researchers.css
   Researchers directory + membership application form
   ═══════════════════════════════════════════════════════════════ */

/* ─── Page Hero ─── */
.researchers-hero .page-hero-bg {
  background: linear-gradient(135deg, #0B1120 0%, #2d1a00 50%, #131d35 100%);
}

/* ─── Researchers Section ─── */
.researchers-section {
  padding: 72px 0 88px;
  background: var(--off-white);
  scroll-margin-top: 80px;
}

.researchers-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--warm-grey);
}
.researchers-header-text h2 { margin-bottom: 10px; }
.researchers-header-text p {
  max-width: 540px;
  font-size: 0.9375rem;
  color: var(--text-light);
  line-height: 1.65;
}

/* ─── Region filter ─── */
.researchers-filter-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
.rfil {
  font-family: 'Source Sans 3', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 100px;
  border: 2px solid var(--warm-grey);
  color: var(--text-mid);
  background: var(--white);
  transition: var(--transition);
  cursor: pointer;
}
.rfil:hover { border-color: var(--gold); color: var(--gold); }
.rfil.active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

/* ─── Group Label ─── */
.researcher-group-label {
  margin-bottom: 24px;
}
.group-label-text {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-light);
  padding: 6px 0;
  border-bottom: 2px solid var(--warm-grey);
  display: block;
}

/* ─── Researcher Grids ─── */
.researchers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.researchers-grid-wide {
  grid-template-columns: repeat(3, 1fr);
}

/* ─── Researcher Card ─── */
.researcher-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--warm-grey);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}
.researcher-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.researcher-card.hidden { display: none; }

/* Lead card spans full width */
.researcher-card-lead {
  grid-column: 1 / -1;
  flex-direction: row;
}

/* Card header */
.rc-header {
  padding: 28px 24px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-shrink: 0;
}
.researcher-card-lead .rc-header {
  flex-direction: column;
  width: 160px;
  min-width: 160px;
  padding: 32px 24px;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
}
.rc-header-gold  { background: linear-gradient(160deg, #C9922A, #7a5510); }
.rc-header-green { background: linear-gradient(160deg, #1c4a2c, #0d2d1a); }
.rc-header-navy  { background: linear-gradient(160deg, #1c2a47, #0B1120); }

/* Avatar */
.rc-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15) center center / cover no-repeat;
  border: 2px solid rgba(255,255,255,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.rc-avatar-sm {
  width: 52px;
  height: 52px;
}
.researcher-card-lead .rc-avatar {
  width: 80px;
  height: 80px;
}
.rc-initials {
  font-family: 'Playfair Display', serif;
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: 0.04em;
}
.researcher-card-lead .rc-initials { font-size: 1.4rem; }

/* Real photo avatars — applied per researcher */
#desmond-odugu   .rc-avatar { background-image: url('../images/researchers/desmond-odugu.jpg'); }
#akosua-perbi    .rc-avatar { background-image: url('../images/researchers/akosua-perbi.jpg'); }
#chidi-ugwu      .rc-avatar { background-image: url('../images/researchers/chidi-ugwu.jpg'); }
#george-agbo     .rc-avatar { background-image: url('../images/researchers/george-agbo.jpg'); }
#ngozi-nwobi     .rc-avatar { background-image: url('../images/researchers/ngozi-nwobia.jpg'); }
#andy-chebanne   .rc-avatar { background-image: url('../images/researchers/andy-chebanne.jpg'); }
#annah-molosiwa  .rc-avatar { background-image: url('../images/researchers/annah-molosiwa.jpg'); }
#gastor-mapunda  .rc-avatar { background-image: url('../images/researchers/gastor-mapunda.jpg'); }
#abel-mreta      .rc-avatar { background-image: url('../images/researchers/abel-mreta.jpg'); }
#chinedu-uchechukwu .rc-avatar { background-image: url('../images/researchers/chinedu-uchechukwu.jpg'); }

/* Hide initials text when a real photo is loaded */
#desmond-odugu .rc-initials,
#akosua-perbi .rc-initials,
#chidi-ugwu .rc-initials,
#george-agbo .rc-initials,
#ngozi-nwobi .rc-initials,
#andy-chebanne .rc-initials,
#annah-molosiwa .rc-initials,
#gastor-mapunda .rc-initials,
#abel-mreta .rc-initials,
#chinedu-uchechukwu .rc-initials { display: none; }

/* Role badge */
.rc-role-badge {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 4px 10px;
  border-radius: 100px;
  text-align: center;
}
.rc-role-secondary {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.75);
}

/* Card body */
.rc-body {
  padding: 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.researcher-card-lead .rc-body { padding: 28px 28px 20px; }

.rc-body h3 {
  font-size: 1.05rem;
  color: var(--navy);
  margin-bottom: 4px;
  line-height: 1.25;
}
.rc-institution {
  font-size: 0.825rem;
  color: var(--text-light);
  margin-bottom: 12px;
  font-weight: 600;
}

.rc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 14px;
}
.rc-tags span {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-light);
  background: var(--off-white);
  border: 1px solid var(--warm-grey);
  padding: 3px 9px;
  border-radius: 100px;
}

.rc-bio {
  font-size: 0.875rem;
  color: var(--text-mid);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 14px;
}
.rc-bio em { font-style: italic; }

/* Compact card — shorter bio display */
.researcher-card-compact .rc-bio {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Project links */
.rc-projects {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  padding-top: 14px;
  border-top: 1px solid var(--warm-grey);
}
.rc-projects-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-right: 4px;
}
.rc-project-link {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gold);
  background: rgba(201,146,42,0.08);
  border: 1px solid rgba(201,146,42,0.2);
  padding: 3px 10px;
  border-radius: 100px;
  transition: var(--transition);
}
.rc-project-link:hover {
  background: var(--gold);
  color: var(--white);
}

/* Card footer */
.rc-footer {
  padding: 0 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.researcher-card-lead .rc-footer { padding: 0 28px 24px; }

.rc-contact-btn {
  display: inline-block;
  font-family: 'Source Sans 3', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--navy);
  background: var(--off-white);
  border: 1px solid var(--warm-grey);
  padding: 8px 18px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.rc-contact-btn:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

/* No results */
.researchers-no-results {
  text-align: center;
  padding: 52px 0;
}
.researchers-no-results p { color: var(--text-light); font-size: 1rem; }
.reset-filter-btn {
  color: var(--gold);
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
  background: none;
  border: none;
  font-size: 1rem;
  font-family: inherit;
}

/* ═══════════════════════════════════════════════════════════════
   JOIN THE NETWORK SECTION
   ═══════════════════════════════════════════════════════════════ */
.join-section-full {
  padding: 88px 0;
  background: var(--white);
  scroll-margin-top: 80px;
}

.join-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}
.join-header h2 { margin-bottom: 14px; }
.join-header-sub {
  font-size: 1.0625rem;
  color: var(--text-mid);
  line-height: 1.7;
}

.join-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

/* ─── Info column ─── */
.join-info-col {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.join-info-block h3,
.join-access-note h3,
.join-process-steps h3 {
  font-size: 1.05rem;
  margin-bottom: 16px;
  color: var(--navy);
}

.join-benefits-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.join-benefits-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--text-mid);
  line-height: 1.55;
}
.benefit-icon {
  color: var(--gold);
  font-size: 0.5rem;
  flex-shrink: 0;
  margin-top: 6px;
}

.join-access-note {
  background: #fff8e8;
  border: 1px solid rgba(201,146,42,0.25);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.join-access-note p {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.65;
  margin: 0;
}

.join-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
}
.join-steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 0.9375rem;
  color: var(--text-mid);
  line-height: 1.55;
}
.join-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--white);
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 0.85rem;
}

/* ─── Form column ─── */
.join-form-card {
  background: var(--off-white);
  border: 1px solid var(--warm-grey);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.join-form-header {
  background: var(--navy);
  padding: 28px 32px;
  border-bottom: 2px solid var(--gold);
}
.join-form-header h3 {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: 6px;
}
.join-form-header p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  margin: 0;
}
.req-mark { color: var(--gold); font-weight: 700; }

/* Form body */
.join-form {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.form-row {
  margin-bottom: 20px;
}
.form-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-label {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mid);
}
.form-input,
.form-textarea {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.9375rem;
  color: var(--text-dark);
  background: var(--white);
  border: 1.5px solid var(--warm-grey);
  border-radius: var(--radius);
  padding: 11px 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
  resize: vertical;
}
.form-input:focus,
.form-textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,146,42,0.12);
}
.form-input.error,
.form-textarea.error {
  border-color: #e53935;
  box-shadow: 0 0 0 3px rgba(229,57,53,0.1);
}
.form-textarea { min-height: 100px; }

/* Checkboxes */
.form-checkboxes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 4px;
}
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-mid);
  cursor: pointer;
  line-height: 1.4;
}
.form-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  min-width: 16px;
  margin-top: 2px;
  accent-color: var(--gold);
  cursor: pointer;
}
.form-check-agreement {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-mid);
  line-height: 1.55;
  background: var(--white);
  border: 1px solid var(--warm-grey);
  border-radius: var(--radius);
  padding: 14px;
  cursor: pointer;
}

/* Submit */
.btn-form-submit {
  width: 100%;
  padding: 16px;
  font-size: 1rem;
  margin-bottom: 12px;
  justify-content: center;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
}
.form-note {
  font-size: 0.8rem;
  color: var(--text-light);
  text-align: center;
  line-height: 1.5;
  margin: 0;
}

/* Form success / error messages */
.form-success {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #f0faf4;
  border: 1px solid rgba(45,180,90,0.3);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 8px;
}
.form-success strong {
  display: block;
  font-size: 0.9375rem;
  color: #1b5e20;
  margin-bottom: 4px;
}
.form-success p {
  font-size: 0.875rem;
  color: var(--text-mid);
  line-height: 1.6;
  margin: 0;
}

.form-error-msg {
  background: #fff5f5;
  border: 1px solid rgba(229,57,53,0.3);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-top: 8px;
}
.form-error-msg p {
  font-size: 0.875rem;
  color: #c62828;
  margin: 0;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .researchers-grid { grid-template-columns: repeat(2, 1fr); }
  .researchers-grid-wide { grid-template-columns: repeat(2, 1fr); }
  .researcher-card-lead { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .join-layout { grid-template-columns: 1fr; gap: 40px; }
  .researchers-header { flex-direction: column; align-items: flex-start; gap: 24px; }
}

@media (max-width: 768px) {
  .researcher-card-lead { flex-direction: column; }
  .researcher-card-lead .rc-header { width: 100%; flex-direction: row; padding: 24px; gap: 16px; }
  .researchers-grid { grid-template-columns: 1fr; }
  .researchers-grid-wide { grid-template-columns: 1fr; }
  .form-row-2col { grid-template-columns: 1fr; }
  .form-checkboxes { grid-template-columns: 1fr; }
  .join-form { padding: 24px; }
}

@media (max-width: 480px) {
  .researchers-filter-bar { gap: 4px; }
  .rfil { font-size: 0.72rem; padding: 6px 12px; }
}