/* ============================================================
   Owente Kellen — Portfolio
   main.css — navigation, sections & components
   ============================================================ */

/* ---- Icon helper ---------------------------------------------------- */
.icon {
  flex-shrink: 0;
}

.icon--lg {
  width: 22px;
  height: 22px;
}

/* ================= NAVIGATION ================= */
.site-nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease),
    backdrop-filter var(--dur-fast) var(--ease);
}

.site-nav.is-scrolled {
  background: rgba(247, 242, 231, 0.88);
  backdrop-filter: blur(10px) saturate(1.2);
  border-bottom-color: var(--rule);
}

.site-nav__row {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav__brand {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--paper-on-ink);
  transition: color var(--dur-fast) var(--ease);
}

.site-nav.is-scrolled .site-nav__brand {
  color: var(--ink);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.4vw, 2.25rem);
}

.site-nav__links a:not(.btn) {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--stone-on-ink);
  position: relative;
  padding-block: 6px;
  transition: color var(--dur-fast) var(--ease);
}

.site-nav.is-scrolled .site-nav__links a:not(.btn) {
  color: var(--stone);
}

.site-nav__links a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--bronze);
  transition: right var(--dur-med) var(--ease);
}

.site-nav__links a:not(.btn):hover,
.site-nav__links a:not(.btn):focus-visible {
  color: var(--bronze-light);
}

.site-nav.is-scrolled .site-nav__links a:not(.btn):hover,
.site-nav.is-scrolled .site-nav__links a:not(.btn):focus-visible {
  color: var(--bronze-dark);
}

.site-nav__links a.is-active:not(.btn) {
  color: var(--bronze-light);
}

.site-nav.is-scrolled .site-nav__links a.is-active:not(.btn) {
  color: var(--bronze-dark);
}

.site-nav__links a.is-active:not(.btn)::after {
  right: 0;
}

.site-nav__cta {
  margin-left: 0.25rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
}

.nav-toggle__bar {
  width: 20px;
  height: 1.5px;
  background: var(--paper-on-ink);
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.site-nav.is-scrolled .nav-toggle__bar {
  background: var(--ink);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* ================= BUTTONS ================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  padding: 0.9rem 1.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--bronze {
  background: var(--bronze);
  color: var(--ink-2);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.1);
}

.btn--bronze:hover,
.btn--bronze:focus-visible {
  background: var(--bronze-light);
  box-shadow: 0 8px 22px -8px rgba(166, 121, 46, 0.55);
}

.btn--outline-ink {
  border-color: var(--rule-on-ink);
  color: var(--paper-on-ink);
}

.btn--outline-ink:hover,
.btn--outline-ink:focus-visible {
  border-color: var(--bronze-light);
  color: var(--bronze-light);
}

.btn--sm {
  padding: 0.55rem 1.05rem;
  font-size: 0.72rem;
}

/* ================= HERO ================= */
.hero {
  position: relative;
  scroll-margin-top: var(--nav-height);
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: radial-gradient(120% 120% at 82% 10%, #201c14 0%, var(--ink-2) 62%);
  color: var(--paper-on-ink);
  padding-block: calc(var(--nav-height) + 2rem) 4rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(247, 242, 231, 0.05) 1px, transparent 1px);
  background-size: 100% 44px;
  pointer-events: none;
  opacity: 0.5;
}

.hero__row {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: clamp(2.5rem, 6vw, 5rem);
  position: relative;
}

.hero__dateline {
  margin-bottom: 1.6rem;
}

.hero__name {
  font-size: clamp(3.2rem, 8vw, 6.4rem);
  color: var(--paper-on-ink);
  overflow: hidden;
}

.reveal-line {
  display: block;
  overflow: hidden;
}

.reveal-line > span {
  display: inline-block;
  transform: translateY(110%);
  animation: line-up var(--dur-slow) var(--ease) forwards;
  animation-delay: 0.15s;
}

.hero__name .reveal-line:nth-child(2) > span {
  animation-delay: 0.32s;
}

p.hero__role.reveal-line {
  animation: none;
}

p.hero__role.reveal-line > span {
  animation-delay: 0.5s;
}

@keyframes line-up {
  to {
    transform: translateY(0);
  }
}

.hero__role {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  letter-spacing: 0.02em;
  color: var(--bronze-light);
  margin-top: 1.5rem;
}

.hero__lede {
  margin-top: 1.6rem;
  max-width: 46ch;
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--stone-on-ink);
  opacity: 0;
  animation: fade-up var(--dur-slow) var(--ease) forwards;
  animation-delay: 0.65s;
}

.hero__actions {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  opacity: 0;
  animation: fade-up var(--dur-slow) var(--ease) forwards;
  animation-delay: 0.8s;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal-line > span,
  .hero__lede,
  .hero__actions {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

.hero__portrait {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  animation: seal-in var(--dur-slow) var(--ease) forwards;
  animation-delay: 0.5s;
}

@keyframes seal-in {
  from {
    opacity: 0;
    transform: scale(0.9) rotate(-6deg);
  }
  to {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__portrait {
    animation: none;
    opacity: 1;
  }
}

.seal {
  position: relative;
  width: min(280px, 60vw);
  aspect-ratio: 1;
  color: var(--bronze-light);
}

.seal__frame {
  position: absolute;
  inset: 0;
}

.seal__ring {
  transform-box: fill-box;
  transform-origin: center;
  animation: spin 90s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .seal__ring {
    animation: none;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.seal__photo {
  position: absolute;
  inset: 14%;
  width: 72%;
  height: 72%;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--bronze-light);
}

.hero__scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 46px;
  background: var(--rule-on-ink);
  overflow: hidden;
}

.hero__scroll-cue span {
  display: block;
  width: 100%;
  height: 40%;
  background: var(--bronze-light);
  animation: cue-fall 2.2s var(--ease) infinite;
}

@keyframes cue-fall {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(250%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__scroll-cue span {
    animation: none;
  }
}

/* ================= ABOUT ================= */
.about__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
}

.about__intro .eyebrow {
  margin-bottom: 1rem;
}

.about__intro h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  max-width: 16ch;
}

.about__statement {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color: var(--ink);
  line-height: 1.5;
  margin-top: 1.75rem;
  padding-left: 1.25rem;
  border-left: 2px solid var(--bronze);
}

.about__body {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  max-width: 58ch;
}

.about__aside {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.credential-card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.6rem;
}

.credential-card .eyebrow {
  margin-bottom: 0.6rem;
}

.credential-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
}

.credential-card__meta {
  margin-top: 0.35rem;
  color: var(--stone);
  font-size: 0.92rem;
}

/* ================= EXPERTISE ================= */
.expertise__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.expertise-card {
  position: relative;
  padding: 2rem 1.75rem;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.expertise-card:hover {
  transform: translateY(-6px);
  border-color: var(--bronze);
  box-shadow: 0 22px 40px -26px rgba(21, 19, 15, 0.35);
}

.expertise-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--bronze-wash);
  color: var(--bronze-dark);
  margin-bottom: 1.4rem;
}

.expertise-card h3 {
  font-size: 1.2rem;
}

.expertise-card p {
  margin-top: 0.6rem;
  color: var(--stone);
  font-size: 0.96rem;
}

.expertise-card__rule {
  position: absolute;
  left: 1.75rem;
  right: 1.75rem;
  bottom: 0;
  height: 2px;
  background: var(--bronze);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-med) var(--ease);
}

.expertise-card:hover .expertise-card__rule {
  transform: scaleX(1);
}

/* ================= JOURNEY ================= */
.journey__track {
  max-width: 760px;
}

.journey__label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 1.25rem;
}

.journey__label--spaced {
  margin-top: 3rem;
}

.journey__list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.journey-item {
  position: relative;
  padding: 1.75rem 2rem 1.75rem 2.25rem;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--bronze);
  border-radius: var(--radius-md);
}

.journey-item__role {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--ink);
}

.journey-item__org {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--bronze-dark);
  margin-top: 0.4rem;
  letter-spacing: 0.02em;
}

.journey-item__desc {
  margin-top: 0.9rem;
  color: var(--stone);
  max-width: 62ch;
}

.journey-item--education {
  border-left-color: var(--rule);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.journey-item--education .journey-item__role {
  font-size: 1.1rem;
}

.journey-item--education .journey-item__org {
  color: var(--stone);
}

.journey-photo {
  margin: 2rem 0 3rem;
}

.journey-photo img {
  width: 100%;
  aspect-ratio: 900 / 879;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule);
}

.journey-photo figcaption {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

.journey-photo figcaption .eyebrow {
  margin-bottom: 0.6rem;
}

.journey-photo figcaption p {
  color: var(--stone);
  font-size: 0.95rem;
  max-width: 60ch;
}

/* ================= WRITING & PUBLICATIONS ================= */
.featured-pub {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: var(--ink-2);
  color: var(--paper-on-ink);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.featured-pub:hover,
.featured-pub:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 30px 50px -30px rgba(21, 19, 15, 0.5);
}

.featured-pub .eyebrow {
  color: var(--bronze-light);
  margin-bottom: 0.75rem;
}

.featured-pub h3 {
  color: var(--paper-on-ink);
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.featured-pub p {
  margin-top: 0.85rem;
  color: var(--stone-on-ink);
  max-width: 52ch;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--bronze-light);
}

.featured-pub__icon {
  flex-shrink: 0;
  color: var(--bronze-light);
  opacity: 0.85;
}

.publications__grid {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.pub-card {
  padding: 1.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--rule);
  background: var(--paper-raised);
  transition: transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.pub-card:hover {
  transform: translateY(-4px);
  border-color: var(--bronze);
}

.pub-card__date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--stone);
  letter-spacing: 0.05em;
}

.pub-card h3 {
  font-size: 1.1rem;
  margin-top: 0.6rem;
}

.pub-card p {
  margin-top: 0.6rem;
  color: var(--stone);
  font-size: 0.92rem;
}

.pub-card .link-arrow {
  margin-top: 1.1rem;
  color: var(--bronze-dark);
  font-size: 0.75rem;
}


.publications__noscript {
  margin-top: 1.5rem;
  color: var(--stone);
}

.publications__noscript a {
  color: var(--bronze-dark);
  text-decoration: underline;
}

/* ================= CONNECT / SOCIAL ================= */
.social__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.social-card {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--rule);
  background: var(--paper-raised);
  transition: transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.social-card:hover,
.social-card:focus-visible {
  transform: translateY(-6px);
  border-color: var(--bronze);
  box-shadow: 0 24px 44px -28px rgba(21, 19, 15, 0.35);
}

.social-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.social-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--ink-2);
  color: var(--bronze-light);
}

.social-card__external {
  color: var(--stone);
  opacity: 0.7;
  transition: transform var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}

.social-card:hover .social-card__external {
  transform: translate(3px, -3px);
  color: var(--bronze-dark);
  opacity: 1;
}

.social-card__platform {
  font-size: 1.2rem;
}

.social-card__handle {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--bronze-dark);
  margin-top: 0.3rem;
}

.social-card__desc {
  color: var(--stone);
  font-size: 0.92rem;
  margin-top: 0.5rem;
}

.social-card__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

/* ================= CONTACT ================= */
.contact {
  background: var(--paper-dim);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
}

.contact h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-top: 0.75rem;
}

.contact__lede {
  margin-top: 1.1rem;
  color: var(--stone);
  max-width: 46ch;
  font-size: 1.05rem;
}

.contact__card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  padding: 1.75rem 2rem;
}

.contact__card .icon--lg {
  color: var(--bronze-dark);
}

.contact__value {
  margin-top: 0.4rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ink);
}

.contact__value a {
  color: var(--bronze-dark);
  text-underline-offset: 3px;
  text-decoration: underline;
}

/* ================= FOOTER ================= */
.site-footer {
  background: var(--ink-2);
  color: var(--stone-on-ink);
  padding-block: 3rem;
}

.site-footer__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-footer__brand {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--paper-on-ink);
}

.site-footer__tag {
  margin-top: 0.35rem;
  font-size: 0.85rem;
}

.site-footer__links {
  display: flex;
  gap: 1.75rem;
}

.site-footer__links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--stone-on-ink);
  transition: color var(--dur-fast) var(--ease);
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--bronze-light);
}

.site-footer__copy {
  font-size: 0.8rem;
  color: var(--stone-on-ink);
  opacity: 0.75;
}

/* ================= BACK TO TOP ================= */
.to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper-on-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--bronze);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), visibility var(--dur-fast);
  z-index: 90;
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  background: var(--bronze);
  color: var(--ink-2);
}

/* ================= Staggered reveal for grids ================= */
.expertise__grid > *,
.publications__grid > *,
.social__grid > *,
.journey__list > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease);
}

.expertise__grid.is-visible > *,
.publications__grid.is-visible > *,
.social__grid.is-visible > *,
.journey__list.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

.expertise__grid.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.expertise__grid.is-visible > *:nth-child(2) { transition-delay: 70ms; }
.expertise__grid.is-visible > *:nth-child(3) { transition-delay: 140ms; }
.expertise__grid.is-visible > *:nth-child(4) { transition-delay: 210ms; }
.expertise__grid.is-visible > *:nth-child(5) { transition-delay: 280ms; }
.expertise__grid.is-visible > *:nth-child(6) { transition-delay: 350ms; }

.publications__grid.is-visible > *:nth-child(1),
.social__grid.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.publications__grid.is-visible > *:nth-child(2),
.social__grid.is-visible > *:nth-child(2) { transition-delay: 90ms; }
.publications__grid.is-visible > *:nth-child(3),
.social__grid.is-visible > *:nth-child(3) { transition-delay: 180ms; }

@media (prefers-reduced-motion: reduce) {
  .expertise__grid > *,
  .publications__grid > *,
  .social__grid > *,
  .journey__list > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
}