:root {
  --paper: #f4f4f3;
  --white: #ffffff;
  --ink: #161616;
  --soft-ink: #4a4a4a;
  --line: #dddddd;
  --orange: #ffb38a;
  --coral: #ff8b6f;
  --lime: #9fdaa7;
  --pink: #ff9fcb;
  --sky: #a8d6f2;
  --yellow: #f6b23d;
  --green: #1f7f3b;
  --blue: #12358f;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family:
    "Helvetica Neue", Arial, ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
}

a {
  color: inherit;
  text-decoration: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 78px;
  border-bottom: 1px solid #ececec;
  padding: 0 clamp(18px, 3vw, 34px);
  background: var(--white);
}

.logo {
  display: inline-flex;
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 950;
  line-height: 0.8;
  letter-spacing: 0;
  transform: skew(-8deg);
}

.logo span {
  display: inline-block;
  --wave: 0px;
  transform: translateY(var(--wave));
  transition: transform 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.logo span:first-child {
  color: var(--orange);
}

.entry-hero {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  min-height: clamp(220px, 32vw, 320px);
  background: var(--white);
}

.entry-tile {
  position: relative;
  --mx: 50%;
  --my: 50%;
  min-height: clamp(220px, 32vw, 320px);
  overflow: hidden;
  color: var(--white);
  isolation: isolate;
  transition:
    filter 180ms ease,
    transform 220ms ease;
}

.entry-tile:hover {
  filter: saturate(1.03);
}

.entry-tile::before {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0;
  content: "";
  background: rgba(255, 255, 255, 0.08);
  transition: opacity 220ms ease;
  pointer-events: none;
}

.entry-tile:hover::before {
  opacity: 1;
}

.entry-tile:hover .entry-letter {
  opacity: 0;
  transform: translate3d(-0.02em, -0.02em, 0) scale(0.98);
}

.entry-tile:hover .entry-label {
  transform: translateY(-4px);
}

.entry-letter {
  position: absolute;
  z-index: 3;
  right: -0.08em;
  bottom: -0.22em;
  color: rgba(255, 255, 255, 0.34);
  font-size: clamp(13rem, 24vw, 24rem);
  font-weight: 800;
  line-height: 0.8;
  pointer-events: none;
  transition:
    color 220ms ease,
    opacity 220ms ease,
    transform 320ms ease;
}

.entry-label {
  position: absolute;
  z-index: 3;
  left: clamp(22px, 3vw, 42px);
  bottom: clamp(22px, 3vw, 38px);
  font-size: clamp(1rem, 1.6vw, 1.45rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 220ms ease;
}

.entry-label::after {
  display: block;
  width: 0;
  height: 1px;
  margin-top: 8px;
  background: rgba(255, 255, 255, 0.78);
  content: "";
  transition: width 240ms ease;
}

.entry-tile:hover .entry-label::after {
  width: 100%;
}

.entry-reveal {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0;
  visibility: hidden;
  clip-path: circle(0 at var(--mx) var(--my));
  transition:
    clip-path 520ms cubic-bezier(0.19, 1, 0.22, 1),
    opacity 180ms ease,
    visibility 0ms linear 220ms;
  pointer-events: none;
}

.entry-reveal img {
  display: block;
  width: 100%;
  height: 100%;
  filter: saturate(1.04) contrast(0.94);
  object-fit: cover;
}

.entry-tile:hover .entry-reveal {
  opacity: 0.72;
  visibility: visible;
  clip-path: circle(34% at var(--mx) var(--my));
  transition:
    clip-path 520ms cubic-bezier(0.19, 1, 0.22, 1),
    opacity 180ms ease,
    visibility 0ms linear 0ms;
}

.entry-research .entry-reveal img {
  object-position: 52% 48%;
}

.entry-github .entry-reveal img {
  filter: saturate(0.82) contrast(0.76) brightness(1.06);
  object-position: 50% 54%;
}

.entry-bio .entry-reveal img {
  object-position: 52% 52%;
}

.entry-research {
  background: var(--coral);
}

.entry-github {
  background: var(--lime);
  color: var(--white);
}

.entry-github .entry-letter {
  right: -0.08em;
  bottom: -0.22em;
  transform: none;
  font-size: clamp(13rem, 24vw, 24rem);
}

.entry-bio {
  background: var(--sky);
}

.entry-bio .entry-letter {
  right: -0.08em;
  left: auto;
  bottom: -0.22em;
  color: rgba(255, 255, 255, 0.34);
  font-size: clamp(13rem, 24vw, 24rem);
}

.entry-bio .entry-label {
  right: auto;
  left: clamp(22px, 3vw, 42px);
  text-align: left;
}

.biography {
  background: var(--paper);
}

.section-title {
  padding: clamp(64px, 8vw, 96px) clamp(28px, 9vw, 120px);
}

.section-title h2,
.research-heading h1,
.research-panel h2 {
  margin: 0;
  font-weight: 300;
  letter-spacing: 0.14em;
}

.section-title h2 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

.bio-photo-wrap {
  width: min(48vw, 620px);
  margin: 0 auto;
  background: transparent !important;
}

.bio-photo-wrap.is-heart {
  width: min(42vw, 500px);
}

.bio-photo-wrap.is-forest {
  width: min(38vw, 440px);
}

.bio-photo-wrap img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  object-position: 50% 43%;
}

.bio-photo-wrap.is-heart img {
  aspect-ratio: 4 / 5;
  object-position: 50% 38%;
}

.bio-photo-wrap.is-forest img {
  aspect-ratio: 4 / 5;
  object-position: 48% 50%;
}

.photo-caption {
  display: block;
  width: 100%;
  margin: 16px auto 0;
  padding: 0;
  background: transparent;
  color: #8f8f8f;
  font-size: 0.78rem;
  font-style: italic;
  line-height: 1.4;
  text-align: center;
}

.photo-caption:empty {
  display: none;
}

.language-switcher {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 24px;
  width: max-content;
  margin: 34px auto 66px;
  padding: 0;
}

.language-card {
  appearance: none;
  position: relative;
  font: inherit;
  min-width: 96px;
  border: 0;
  border-radius: 0;
  padding: 8px 0;
  background: transparent;
  color: var(--soft-ink);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
  cursor: pointer;
  overflow: hidden;
  transition:
    background 160ms ease,
    color 160ms ease;
}

.language-card span {
  display: inline-block;
  transition:
    opacity 160ms ease,
    transform 180ms ease;
}

.language-card::after {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
  color: currentColor;
  content: attr(data-hover-label);
  transform: translateY(12px);
  transition:
    opacity 160ms ease,
    transform 180ms ease;
}

.language-card:hover span {
  opacity: 0;
  transform: translateY(-12px);
}

.language-card:hover::after {
  opacity: 1;
  transform: translateY(0);
}

.language-card:hover,
.language-card[aria-current="page"] {
  background: transparent;
  color: var(--ink);
}

.language-card::before {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.language-card:hover::before,
.language-card[aria-current="page"]::before {
  transform: scaleX(1);
}

.bio-copy {
  width: min(84vw, 1080px);
  margin: 0 auto;
  padding-bottom: clamp(80px, 11vw, 150px);
}

.bio-copy p {
  margin: 0 0 24px;
  color: #252525;
  font-size: clamp(1.05rem, 1.45vw, 1.24rem);
  font-weight: 300;
  line-height: 2;
}

.social-footer {
  display: grid;
  justify-items: center;
  gap: 24px;
  padding: clamp(44px, 7vw, 80px) 24px;
  background: var(--white);
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(18px, 3vw, 30px);
}

.social-links a {
  display: grid;
  justify-items: center;
  gap: 8px;
  color: #9a9a9a;
  font-size: 0.76rem;
  transition:
    color 160ms ease,
    transform 160ms ease;
}

.social-links a:hover {
  color: var(--ink);
  transform: translateY(-2px);
}

.social-links a:hover .social-icon {
  background: #888888;
}

.social-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #9d9d9d;
  color: var(--white);
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1;
  transition:
    background 180ms ease,
    transform 220ms ease;
}

.social-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.social-x {
  font-size: 1.3rem;
}

.social-life:hover .social-icon {
  animation: heart-hop 980ms ease;
}

.social-life:hover .social-icon svg {
  animation: heart-beat 980ms ease;
}

.social-x-link:hover .social-x {
  animation: x-flip 520ms ease;
}

.social-instagram:hover .social-icon {
  animation: camera-click 560ms ease;
}

.social-instagram:hover circle:nth-of-type(1) {
  animation: lens-pop 560ms ease;
}

.social-instagram:hover circle:nth-of-type(2) {
  animation: flash-dot 560ms ease;
}

.social-email:hover .social-icon {
  animation: envelope-lift 620ms ease;
}

.social-email:hover path {
  animation: envelope-open 620ms ease;
}

.social-links small {
  font-size: 0.74rem;
  font-weight: 300;
  letter-spacing: 0.02em;
}

.site-credits {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  width: min(86vw, 980px);
  margin: 4px auto 34px;
  color: #8b8b8b;
  font-size: 0.78rem;
  font-weight: 300;
  letter-spacing: 0.02em;
}

.life-credits {
  position: relative;
  z-index: 3;
  margin-top: -34px;
  margin-bottom: 44px;
  color: rgba(255, 255, 255, 0.74);
}

@keyframes heart-hop {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  42% {
    transform: translateY(-8px) scale(1.05);
  }
  68% {
    transform: translateY(1px) scale(0.98);
  }
}

@keyframes heart-beat {
  0%,
  100% {
    transform: scale(1);
  }
  45% {
    transform: scale(1.18);
  }
}

@keyframes x-flip {
  0%,
  100% {
    transform: rotate(0deg) scale(1);
  }
  50% {
    transform: rotate(-12deg) scale(1.08);
  }
}

@keyframes camera-click {
  0%,
  100% {
    transform: translateY(0);
  }
  35% {
    transform: translateY(-2px) scale(0.96);
  }
  62% {
    transform: translateY(0) scale(1.04);
  }
}

@keyframes lens-pop {
  0%,
  100% {
    transform: scale(1);
  }
  45% {
    transform: scale(1.35);
  }
}

@keyframes flash-dot {
  0%,
  100% {
    opacity: 1;
  }
  45% {
    opacity: 0.25;
  }
}

@keyframes envelope-lift {
  0%,
  100% {
    transform: translateY(0);
  }
  45% {
    transform: translateY(-5px);
  }
}

@keyframes envelope-open {
  0%,
  100% {
    transform: translateY(0);
  }
  45% {
    transform: translateY(-2px);
  }
}

.life-body,
.life-page {
  position: relative;
  min-height: 100vh;
  background:
    linear-gradient(rgba(245, 245, 241, 0.28), rgba(245, 245, 241, 0.28)),
    url("assets/van-gogh-seine.jpg") center / cover fixed;
  cursor: none;
}

.life-body::before {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: rgba(245, 245, 241, 0.46);
  backdrop-filter: blur(8px) saturate(0.78);
  content: "";
  pointer-events: none;
}

.life-page .topbar,
.life-page .life-hero {
  position: relative;
  z-index: 3;
}

.life-page a,
.life-page button {
  cursor: none;
}

.life-cursor {
  position: fixed;
  z-index: 101;
  top: 0;
  left: 0;
  width: 26px;
  height: 26px;
  border: 0;
  border-radius: 50%;
  opacity: 0;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.3),
    0 0 18px rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition:
    opacity 140ms ease,
    width 160ms ease,
    height 160ms ease,
    box-shadow 160ms ease;
  pointer-events: none;
}

.life-cursor.is-visible {
  opacity: 1;
}

.life-cursor.is-hovering {
  width: 38px;
  height: 38px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.42),
    0 0 22px rgba(255, 255, 255, 0.48);
}

.life-clear-spot {
  position: fixed;
  z-index: 2;
  inset: 0;
  --spot-x: 50vw;
  --spot-y: 50vh;
  --spot-size: 44px;
  width: 100vw;
  height: 100vh;
  opacity: 0;
  background:
    url("assets/van-gogh-seine.jpg") center / cover fixed;
  filter: saturate(1.26) contrast(1.16);
  mask-image: radial-gradient(
    circle at var(--spot-x) var(--spot-y),
    #000 0 var(--spot-size),
    rgba(0, 0, 0, 0.46) calc(var(--spot-size) + 13px),
    transparent calc(var(--spot-size) + 28px)
  );
  -webkit-mask-image: radial-gradient(
    circle at var(--spot-x) var(--spot-y),
    #000 0 var(--spot-size),
    rgba(0, 0, 0, 0.46) calc(var(--spot-size) + 13px),
    transparent calc(var(--spot-size) + 28px)
  );
  pointer-events: none;
  transition: opacity 150ms ease;
}

.life-clear-spot.is-visible {
  opacity: 1;
}

.life-clear-spot.is-hovering {
  --spot-size: 56px;
}

.life-clear-spot.is-on-card {
  --spot-size: 28px;
  opacity: 0.42;
}

.life-clear-spot.is-on-card.is-hovering {
  --spot-size: 34px;
  opacity: 0.34;
}

.life-hero {
  width: min(86vw, 1060px);
  margin: 0 auto;
  padding: clamp(78px, 11vw, 140px) 0 clamp(38px, 6vw, 70px);
}

.life-hero p,
.life-copy span {
  margin: 0 0 18px;
  color: var(--coral);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.life-hero h1 {
  max-width: 760px;
  margin: 0;
  color: var(--white);
  font-size: clamp(2.6rem, 5.6vw, 5.6rem);
  font-weight: 300;
  letter-spacing: 0;
  line-height: 1.02;
}

.life-feature {
  position: relative;
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(24px, 4vw, 58px);
  width: min(90vw, 1220px);
  min-height: auto;
  margin: 0 auto clamp(48px, 8vw, 110px);
  padding: clamp(28px, 4vw, 54px);
  background: rgba(255, 255, 255, 0.46);
  backdrop-filter: blur(16px) saturate(0.92);
  box-shadow: 0 20px 80px rgba(20, 20, 20, 0.12);
  opacity: 0;
  transform: translateY(64px) scale(0.985);
  transition:
    opacity 740ms ease,
    transform 840ms cubic-bezier(0.19, 1, 0.22, 1);
}

.life-feature > * {
  position: relative;
  z-index: 3;
}

.life-feature.is-visible {
  opacity: 1;
  transform: none;
}

.life-feature + .life-feature {
  border-top: 0;
}

.life-copy {
  align-self: end;
  padding-bottom: clamp(14px, 3vw, 42px);
}

.life-copy h2 {
  margin: 0 0 20px;
  font-size: clamp(2rem, 4.2vw, 4.4rem);
  font-weight: 300;
  letter-spacing: 0;
  line-height: 0.96;
}

.life-copy p {
  max-width: 420px;
  margin: 0;
  color: var(--soft-ink);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  font-weight: 300;
  line-height: 1.8;
}

.life-feature img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
}

.volleyball-feature {
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 0.88fr);
}

.volleyball-feature .life-copy {
  order: 0;
}

.oreo-feature img {
  width: min(100%, 880px);
  max-height: 66vh;
  aspect-ratio: auto;
  object-position: 48% 54%;
}

.volleyball-feature img {
  width: min(78%, 620px);
  max-height: 50vh;
  justify-self: end;
  aspect-ratio: auto;
  object-position: 50% 46%;
}

.music-feature {
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 0.88fr);
}

.music-feature img {
  width: min(88%, 560px);
  max-height: 64vh;
  margin-inline: auto;
  aspect-ratio: auto;
  object-position: 50% 50%;
}

.life-spark {
  position: fixed;
  z-index: 120;
  left: 0;
  top: 0;
  font-size: var(--spark-size, 1.25rem);
  line-height: 1;
  opacity: 0;
  pointer-events: none;
  transform:
    translate(var(--spark-x), var(--spark-y))
    translate(-50%, -50%)
    scale(0.82)
    rotate(var(--spark-rotate, 0deg));
  animation: life-spark-rise 920ms ease-out forwards;
  filter: drop-shadow(0 6px 14px rgba(40, 35, 30, 0.16));
}

.life-spark.is-oreo {
  color: #ff7f82;
}

.life-spark.is-music {
  color: #5f7f86;
}

@keyframes life-spark-rise {
  0% {
    opacity: 0;
    transform:
      translate(var(--spark-x), var(--spark-y))
      translate(-50%, -50%)
      translateY(8px)
      scale(0.7)
      rotate(var(--spark-rotate, 0deg));
  }

  18% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform:
      translate(var(--spark-x), var(--spark-y))
      translate(calc(-50% + var(--spark-drift, 0px)), -50%)
      translateY(-54px)
      scale(1.18)
      rotate(calc(var(--spark-rotate, 0deg) + 14deg));
  }
}

.research-heading {
  padding: clamp(64px, 8vw, 104px) clamp(28px, 9vw, 120px) clamp(44px, 6vw, 70px);
  background: var(--paper);
}

.research-heading p {
  margin: 0 0 18px;
  color: var(--green);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.research-heading h1 {
  max-width: 660px;
  margin-bottom: 22px;
  font-family: "SFMono-Regular", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: clamp(2rem, 3.35vw, 3rem);
  font-weight: 300;
  letter-spacing: 0;
  line-height: 1.28;
}

.research-heading span {
  display: block;
  max-width: 620px;
  color: var(--soft-ink);
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.01em;
  line-height: 1.75;
}

.research-layout {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  align-items: start;
  padding: 0 clamp(28px, 9vw, 120px) clamp(80px, 10vw, 140px);
}

.research-panel {
  background: var(--white);
  border: 1px solid #eeeeee;
  padding: clamp(24px, 3vw, 40px);
}

.research-panel h2 {
  margin-bottom: 24px;
  font-size: 1rem;
  line-height: 1.2;
}

.interests-panel {
  position: sticky;
  top: 110px;
}

.interests-panel h2 {
  color: var(--coral);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pill-list li,
.paper-links a {
  border: 1px solid #d8d8d8;
  border-radius: 999px;
  padding: 9px 14px;
  background: var(--white);
}

.pill-list li {
  color: #303030;
  font-size: 0.95rem;
}

.paper-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--coral);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.paper-panel h2 {
  max-width: 680px;
  margin: 0 0 16px;
  font-family: "SFMono-Regular", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: clamp(1.08rem, 1.35vw, 1.32rem);
  font-weight: 300;
  letter-spacing: 0;
  line-height: 1.55;
}

.paper-panel p {
  max-width: 760px;
  color: var(--soft-ink);
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.01em;
  line-height: 1.75;
}

.paper-authors a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: #cfcfcf;
  text-underline-offset: 4px;
  transition:
    color 160ms ease,
    text-decoration-color 160ms ease;
}

.paper-authors a:hover {
  color: var(--coral);
  text-decoration-color: var(--coral);
}

.paper-figure {
  display: block;
  width: min(86%, 480px);
  margin: 26px 0 6px;
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.paper-links a:hover {
  border-color: var(--coral);
  background: var(--coral);
  color: var(--white);
}

@media (max-width: 900px) {
  .topbar {
    justify-content: center;
  }

  .entry-hero,
  .research-layout,
  .life-feature,
  .volleyball-feature,
  .music-feature {
    grid-template-columns: 1fr;
  }

  .entry-tile {
    min-height: 190px;
  }

  .entry-letter {
    font-size: clamp(10rem, 46vw, 18rem);
  }

  .bio-photo-wrap {
    width: min(76vw, 560px);
  }

  .bio-photo-wrap.is-heart {
    width: min(70vw, 440px);
  }

  .bio-photo-wrap.is-forest {
    width: min(68vw, 400px);
  }

  .interests-panel {
    position: static;
  }

  .volleyball-feature .life-copy {
    order: 0;
  }

  .language-switcher {
    width: max-content;
  }
}

@media (max-width: 560px) {
  .topbar {
    min-height: 64px;
  }

  .entry-tile {
    min-height: 168px;
  }

  .section-title {
    padding-inline: 24px;
  }

  .bio-copy {
    width: calc(100% - 48px);
  }

  .language-switcher {
    width: max-content;
    max-width: calc(100% - 48px);
  }
}