/* ============================================================
   components.css — Nav, footer, cards, buttons
   jeriatrics.com
   ============================================================ */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 12px 32px;
  border-radius: var(--border-radius);
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              transform var(--transition-fast),
              box-shadow var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  min-height: 44px;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

.btn:active {
  transform: translateY(1px);
}

/* Primary */
.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-light);
  box-shadow: 0 4px 20px rgba(155, 29, 32, 0.4);
}

/* Ghost / Secondary */
.btn-ghost {
  background-color: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-ghost:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(155, 29, 32, 0.3);
}

/* Gold ghost */
.btn-gold {
  background-color: transparent;
  color: var(--color-gold);
  border: 2px solid var(--color-gold);
}

.btn-gold:hover {
  background-color: var(--color-gold);
  color: var(--color-bg-primary);
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: background-color var(--transition-base),
              padding var(--transition-base),
              box-shadow var(--transition-base);
}

.nav.scrolled {
  background-color: rgba(17, 31, 48, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.75rem 0;
  box-shadow: 0 1px 0 var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  text-decoration: none;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.nav-brand:hover {
  color: var(--color-gold);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  position: relative;
  transition: color var(--transition-fast);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0.75rem;
  right: 0.75rem;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-links a.active {
  color: var(--color-text-primary);
}

.nav-actions {
  display: none;
  align-items: center;
  gap: 0.75rem;
}

@media (min-width: 1024px) {
  .nav-actions {
    display: flex;
  }
}

.nav-linkedin {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding: 0.4rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: color var(--transition-fast), border-color var(--transition-fast);
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-linkedin:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-secondary);
}

/* Hamburger */
.nav-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

@media (min-width: 1024px) {
  .nav-hamburger {
    display: none;
  }
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.nav-drawer {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg-primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  visibility: hidden;
}

.nav-drawer.open {
  transform: translateX(0);
  visibility: visible;
}

.nav-drawer-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.nav-drawer-close:hover {
  color: var(--color-text-primary);
}

.nav-drawer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-drawer-links a {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 6vw, 2.5rem);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: block;
  padding: 0.35rem 0;
}

.nav-drawer-links a:hover,
.nav-drawer-links a.active {
  color: var(--color-text-primary);
}

.nav-drawer-footer {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

/* ── Cards ── */
.card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 1.75rem;
  transition: background-color var(--transition-base),
              transform var(--transition-base),
              box-shadow var(--transition-base);
}

.card:hover {
  background-color: var(--color-bg-tertiary);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.card-icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  display: block;
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.card-meta {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.card-body {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* In-progress card variant */
.card-in-progress {
  border-color: var(--color-gold);
  position: relative;
}

.badge-in-progress {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-bg-primary);
  background-color: var(--color-gold);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

/* ── Publication card ── */
.pub-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--border-radius);
  padding: 1.5rem 1.75rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.pub-card:hover {
  background-color: var(--color-bg-tertiary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.pub-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
  line-height: 1;
  min-width: 2rem;
}

.pub-content {}

.pub-title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.4rem;
  line-height: 1.4;
}

.pub-authors {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: 0.4rem;
}

.pub-journal {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-text-secondary);
  margin-bottom: 0.6rem;
}

.pub-doi {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  border-radius: 4px;
  padding: 0.2rem 0.6rem;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.pub-doi:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* ── Program card ── */
.program-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: background-color var(--transition-base),
              transform var(--transition-base),
              box-shadow var(--transition-base);
}

.program-card:hover {
  background-color: var(--color-bg-tertiary);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.program-acronym {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
  line-height: 1;
}

.program-name {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1rem;
}

.program-desc {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.program-award {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-gold);
  font-style: italic;
}

/* ── Pull quote ── */
.pull-quote {
  border-left: 4px solid var(--color-accent);
  padding: 1.5rem 2rem;
  margin: 0;
}

.pull-quote blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.375rem);
  font-style: italic;
  font-weight: 400;
  color: var(--color-text-primary);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.pull-quote cite {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 500;
  font-style: normal;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* ── Stat items (research teaser) ── */
.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.stat-item {
  text-align: center;
}

.stat-number-wrap {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: 0.4rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  display: inline-block;
}

.stat-plus {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-left: 3px;
  display: inline-block;
}

.stat-label {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
  display: block;
}

/* ── Section link ── */
.section-link {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-accent-light);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.section-link:hover {
  color: var(--color-text-primary);
  gap: 0.6rem;
}

/* ── Credential pill ── */
.cred-pill {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 0.4rem 1rem;
  min-height: 36px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.cred-pill:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-secondary);
}

/* ── Awards list ── */
.award-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.award-item:last-child {
  border-bottom: none;
}

.award-year {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
  min-width: 2.5rem;
}

.award-name {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.2rem;
}

.award-context {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-text-secondary);
  margin-bottom: 0.2rem;
}

.award-org {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* Warm-background award modifiers */
.award-item--warm {
  border-bottom-color: rgba(0,0,0,0.1);
}

.award-year--dark {
  color: var(--color-accent);
}

.award-name--dark {
  color: var(--color-text-warm);
}

.award-context--dark {
  color: var(--color-text-warm-2);
}

.section-warm .award-org {
  color: var(--color-text-warm-muted);
}

/* ── Footer ── */
.footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 0;
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-link {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.footer-link:hover {
  color: var(--color-text-primary);
}

.footer-copy {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* ── CV-specific styles ── */
.cv-section {
  margin-bottom: 2.5rem;
}

.cv-section-title {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.cv-entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(30, 48, 72, 0.5);
}

@media (min-width: 768px) {
  .cv-entry {
    grid-template-columns: 1fr 180px;
    gap: 0.5rem;
  }
}

.cv-entry:last-child {
  border-bottom: none;
}

.cv-entry-title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text-primary);
}

.cv-entry-org {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.cv-entry-detail {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-text-muted);
}

.cv-entry-date {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: right;
  white-space: nowrap;
}

@media (max-width: 767px) {
  .cv-entry-date {
    text-align: left;
    font-size: var(--text-xs);
  }
}

/* ── Teaser section backgrounds ── */
.section-alt {
  background-color: var(--color-bg-secondary);
}

/* ── Divider line ── */
.gold-rule {
  width: 60px;
  height: 2px;
  background: var(--color-gold);
  border: none;
  margin: 1rem 0;
}

.gold-rule-center {
  margin: 1rem auto;
}