:root {
  color-scheme: light dark;
  --background: #f8f7f2;
  --surface: #fffef9;
  --text: #20201d;
  --muted: #66665f;
  --line: #deddd5;
  --focus: #2b63d9;
  --coral: #f3a38e;
  --blue: #91b9df;
  --yellow: #efd47f;
  --play-yellow: #f2ba47;
  --play-aqua: #75cbc2;
  --award: #76520a;
  --shadow: 0 14px 35px rgb(32 32 29 / 10%);
  --shell: 90rem;
  --scrollbar-track: var(--background);
  --scrollbar-thumb: var(--muted);
  --scrollbar-thumb-hover: var(--text);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #171714;
    --surface: #22221e;
    --text: #f1f0e9;
    --muted: #aaa99f;
    --line: #393933;
    --focus: #8bb7ff;
    --coral: #9e6356;
    --blue: #557896;
    --yellow: #927f45;
    --award: #e0bc65;
    --shadow: 0 14px 35px rgb(0 0 0 / 24%);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--background);
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
  scrollbar-width: auto;
}

*::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

*::-webkit-scrollbar-track,
*::-webkit-scrollbar-corner {
  background: var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb {
  min-height: 2rem;
  border: 3px solid var(--scrollbar-track);
  border-radius: 99rem;
  background: var(--scrollbar-thumb);
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

body {
  min-width: 0;
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-color: currentColor;
}

a:focus-visible {
  border-radius: 0.25rem;
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.25rem;
}

.shell {
  width: min(100% - 2.5rem, var(--shell));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.55rem 0.8rem;
  transform: translateY(-180%);
  border-radius: 0.4rem;
  background: var(--text);
  color: var(--background);
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  padding-block: 1.2rem;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-name {
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", serif;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 600;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  text-decoration: underline;
}

.locale-switch {
  min-width: 2.75rem;
  padding: 0.32rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 0.2rem;
  font-size: 0.76rem;
  font-weight: 750;
  text-align: center;
  text-decoration: none;
}

.locale-switch:hover {
  border-color: var(--text);
}

.hero {
  padding-block: clamp(4.75rem, 12vw, 9rem) clamp(3rem, 7vw, 5rem);
}

.hero h1 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2.6rem, 7vw, 5.8rem);
  font-weight: 780;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.writing-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 2rem;
  padding: 0.68rem 0.9rem;
  border: 1px solid var(--text);
  border-radius: 0.15rem;
  font-size: 0.82rem;
  font-weight: 650;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

.writing-cta:hover,
.writing-cta:focus-visible {
  background: var(--text);
  color: var(--background);
}

.writing-cta svg {
  width: 0.8rem;
  height: 0.8rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: square;
  stroke-linejoin: miter;
  stroke-width: 1.35;
}

.playground {
  padding-bottom: clamp(4rem, 9vw, 7rem);
}

.poster-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 1.6rem);
}

.poster-card {
  min-width: 0;
  overflow: hidden;
  border-radius: 0.25rem;
  box-shadow: 0 0 0 rgb(0 0 0 / 0%);
  color: #1d1c18;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.poster-card:hover,
.poster-card:focus-within {
  transform: translateY(-0.3rem);
  box-shadow: 0 1.2rem 2.5rem rgb(32 32 29 / 16%);
}

.poster-card > a {
  display: flex;
  min-height: clamp(21rem, 42vw, 31rem);
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(1.25rem, 3vw, 2.25rem);
  text-decoration: none;
}

.poster-card > a:focus-visible {
  border-radius: 0.25rem;
  outline-offset: -0.4rem;
}

.poster-card--chess {
  background: var(--play-yellow);
}

.poster-card--life {
  background: var(--play-aqua);
}

.poster-card--lol {
  grid-column: 1 / -1;
  color: #fff8df;
  background:
    radial-gradient(circle at 20% 0%, rgb(17 122 142 / 55%), transparent 38%),
    linear-gradient(135deg, #081a2b 0%, #0d3045 58%, #06121f 100%);
}

.poster-card--lol > a {
  min-height: clamp(18rem, 30vw, 24rem);
}

.poster-art--lol {
  display: grid;
  min-height: 11rem;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(1rem, 4vw, 3rem);
  place-items: center stretch;
}

.poster-lol-champions {
  display: flex;
  align-items: center;
  padding-inline-start: clamp(0.3rem, 3vw, 2rem);
}

.poster-lol-champions img {
  width: clamp(5rem, 11vw, 8rem);
  aspect-ratio: 1;
  margin-inline-start: clamp(-1.1rem, -2vw, -0.5rem);
  transform: rotate(-4deg);
  border: 0.18rem solid #c89b3c;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0.55rem 0.65rem 0 rgb(0 0 0 / 28%);
}

.poster-lol-champions img:nth-child(2) {
  z-index: 1;
  transform: translateY(-0.75rem) rotate(3deg);
}

.poster-lol-champions img:nth-child(3) {
  transform: rotate(7deg);
}

.poster-lol-roles {
  display: grid;
  grid-template-columns: repeat(5, auto);
  gap: 0.35rem;
  align-self: end;
}

.poster-lol-roles i {
  padding: 0.35rem 0.5rem;
  border: 1px solid rgb(200 155 60 / 68%);
  color: #d7b862;
  font-size: clamp(0.56rem, 1.2vw, 0.72rem);
  font-style: normal;
  font-weight: 850;
  letter-spacing: 0.06em;
}

.poster-card--lol .poster-subtitle {
  color: #d7b862;
}

.poster-art {
  position: relative;
  display: grid;
  min-height: 14rem;
  place-items: center;
}

.mini-board {
  display: grid;
  width: min(62%, 13rem);
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  transform: rotate(5deg);
  border: 0.16rem solid rgb(29 28 24 / 70%);
  box-shadow: 0.7rem 0.8rem 0 rgb(29 28 24 / 16%);
}

.mini-board i {
  aspect-ratio: 1;
  background: #f7e6bd;
}

.mini-board i:nth-child(2n),
.mini-board i:nth-child(5),
.mini-board i:nth-child(7),
.mini-board i:nth-child(10),
.mini-board i:nth-child(12),
.mini-board i:nth-child(13),
.mini-board i:nth-child(15) {
  background: #74583f;
}

.poster-symbol {
  position: absolute;
  color: #161512;
  font-family: Georgia, serif;
  font-size: clamp(4rem, 9vw, 7rem);
  filter: drop-shadow(0.25rem 0.3rem 0 rgb(255 255 255 / 28%));
}

.poster-art--cells {
  align-content: center;
  grid-template-columns: repeat(7, minmax(1.35rem, 2.3rem));
  gap: clamp(0.25rem, 1vw, 0.55rem);
  transform: rotate(-3deg);
}

.poster-art--cells i {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 0.25rem;
  background: rgb(235 255 251 / 55%);
}

.poster-art--cells i:nth-child(3n),
.poster-art--cells i:nth-child(8),
.poster-art--cells i:nth-child(16),
.poster-art--cells i:nth-child(23),
.poster-art--cells i:nth-child(31) {
  background: #173f3d;
  box-shadow: 0.2rem 0.25rem 0 rgb(23 63 61 / 16%);
}

.poster-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.poster-title {
  font-size: clamp(1.8rem, 4vw, 3.1rem);
  font-weight: 850;
  letter-spacing: -0.055em;
}

.poster-subtitle {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-intro {
  max-width: 44rem;
  padding-block: clamp(4rem, 10vw, 7.5rem) clamp(2.5rem, 6vw, 4rem);
}

.page-intro h1 {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.4rem);
  letter-spacing: -0.06em;
  line-height: 1;
}

.page-intro > p:last-child {
  max-width: 36rem;
  margin: 1rem 0 0;
  color: var(--muted);
}

.projects {
  padding-bottom: clamp(4rem, 9vw, 7rem);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr));
  gap: clamp(1rem, 2.5vw, 1.6rem);
}

.project-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: var(--surface);
  box-shadow: 0 0 0 rgb(0 0 0 / 0%);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.project-card:hover,
.project-card:focus-within {
  transform: translateY(-0.25rem);
  box-shadow: var(--shadow);
}

.project-card > a {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  text-decoration: none;
}

.project-card > a:focus-visible {
  border-radius: 0.25rem;
  outline-offset: -0.3rem;
}

.project-visual {
  display: grid;
  min-height: 12rem;
  place-items: center;
  border-bottom: 1px solid rgb(32 32 29 / 12%);
}

.project-card--coral .project-visual {
  background: var(--coral);
}

.project-card--blue .project-visual {
  background: var(--blue);
}

.project-card--yellow .project-visual {
  background: var(--yellow);
}

.project-mark {
  display: grid;
  width: 5.5rem;
  aspect-ratio: 1;
  place-items: center;
  transform: none;
  border: 0.15rem solid rgb(32 32 29 / 75%);
  border-radius: 0.35rem;
  background: rgb(255 255 255 / 38%);
  color: #20201d;
  font-size: 1.8rem;
  font-weight: 850;
  letter-spacing: -0.06em;
  box-shadow: 0.4rem 0.45rem 0 rgb(32 32 29 / 16%);
}

.project-card:nth-child(even) .project-mark {
  transform: none;
}

.project-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 1.4rem;
}

.project-heading {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 780;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.project-description {
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.project-destination {
  margin-top: auto;
  padding-top: 1.5rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.site-footer {
  padding-block: 1.5rem 2.5rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.experiment-layout {
  padding-block: clamp(2.5rem, 6vw, 5rem) 4rem;
}

.experiment-intro {
  max-width: 48rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.experiment-intro h1 {
  margin: 0;
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  letter-spacing: -0.065em;
  line-height: 0.95;
}

.experiment-intro > p:last-child {
  margin: 1rem 0 0;
  color: var(--muted);
}

.experiment-panel,
.chess-panel {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: var(--surface);
}

.experiment-status {
  min-height: 1.6rem;
  margin: 0 0 1rem;
  font-weight: 750;
}

.control-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.control-row button,
.speed-control select {
  min-height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: var(--background);
  color: var(--text);
  font: inherit;
  font-weight: 700;
}

.control-row button {
  cursor: pointer;
}

.control-row button:hover {
  border-color: var(--text);
}

.control-row button:focus-visible,
.speed-control select:focus-visible {
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.15rem;
}

.speed-control {
  display: grid;
  gap: 0.4rem;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.speed-control select {
  width: 100%;
  padding-inline: 0.65rem;
}

.experiment-help,
.experiment-error {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.experiment-error {
  color: #a23131;
  font-weight: 700;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.cv-layout {
  max-width: 48rem;
  padding-block: clamp(3.5rem, 8vw, 7rem) 5rem;
}

.cv-intro {
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.cv-intro h1 {
  margin: 0;
  font-size: clamp(2.7rem, 8vw, 4.5rem);
  letter-spacing: -0.055em;
  line-height: 1;
}

.cv-role {
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-weight: 650;
}

.cv-summary {
  max-width: 42rem;
  margin: 1.8rem 0 0;
  font-size: 1.08rem;
}

.cv-section {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 2rem;
  padding-block: 2.6rem;
  border-bottom: 1px solid var(--line);
}

.cv-section > h2 {
  margin: 0;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.cv-section > p,
.cv-section > blockquote {
  grid-column: 2;
}

.cv-list,
.tag-list,
.link-list {
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.cv-list li + li {
  margin-top: 2rem;
}

.compact-list li + li {
  margin-top: 1.2rem;
}

.cv-list h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.4;
}

.cv-list p,
.cv-section > p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.cv-list .cv-meta {
  color: var(--text);
  font-size: 0.82rem;
  font-style: italic;
}

.cv-list .cv-award {
  color: var(--award);
  font-size: 0.84rem;
  font-weight: 750;
}

.tag {
  display: inline-block;
  margin-left: 0.25rem;
  padding: 0.05rem 0.4rem;
  border: 1px solid var(--line);
  border-radius: 99rem;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 650;
  vertical-align: 0.1em;
}

blockquote {
  margin: 1.5rem 0 0;
  padding-left: 1.25rem;
  border-left: 0.2rem solid var(--line);
  color: var(--muted);
}

blockquote p {
  margin: 0;
}

blockquote cite {
  display: block;
  margin-top: 0.7rem;
  font-size: 0.82rem;
  font-style: normal;
}

.site-click-burst {
  position: fixed;
  z-index: 9;
  width: 0;
  height: 0;
  contain: layout style;
  pointer-events: none;
}

.site-click-ring,
.site-click-star {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  will-change: transform;
}

.site-click-ring {
  width: 1.8rem;
  height: 1.8rem;
  border: 0.16rem solid var(--focus);
  border-radius: 50%;
  animation: site-click-ring 620ms cubic-bezier(0.16, 0.8, 0.25, 1) forwards;
}

.site-click-star {
  color: var(--award);
  font-size: 0.9rem;
  font-weight: 900;
  line-height: 1;
  animation: site-click-star 620ms cubic-bezier(0.16, 0.8, 0.25, 1) forwards;
}

@keyframes site-click-ring {
  from {
    transform: translate(-50%, -50%) scale(0.2);
  }

  to {
    transform: translate(-50%, -50%) scale(1.35);
  }
}

@keyframes site-click-star {
  from {
    transform: translate(-50%, -50%) scale(0.4) rotate(0deg);
  }

  to {
    transform:
      translate(calc(-50% + var(--burst-x)), calc(-50% + var(--burst-y)))
      scale(1)
      rotate(var(--burst-turn));
  }
}

.tag-list,
.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-list li,
.link-list a {
  display: block;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 99rem;
  background: var(--surface);
  font-size: 0.82rem;
}

.link-list a {
  text-decoration: none;
}

@media (max-width: 40rem) {
  .shell {
    width: min(100% - 1.5rem, var(--shell));
  }

  .site-header {
    padding-block: 1rem;
  }

  .hero {
    padding-block: 4.5rem 2.75rem;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }

  .poster-grid {
    grid-template-columns: 1fr;
  }

  .poster-card > a {
    min-height: 23rem;
  }

  .poster-card--lol {
    grid-column: auto;
  }

  .poster-art--lol {
    grid-template-columns: 1fr;
  }

  .poster-lol-roles {
    justify-self: center;
  }

  .project-visual {
    min-height: 10rem;
  }

  .cv-layout {
    padding-block: 3.5rem;
  }

  .cv-section {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .cv-section > p,
  .cv-section > blockquote {
    grid-column: 1;
  }
}

@media (forced-colors: active) {
  html {
    scrollbar-color: auto;
    scrollbar-width: auto;
  }

  *::-webkit-scrollbar,
  *::-webkit-scrollbar-track,
  *::-webkit-scrollbar-thumb,
  *::-webkit-scrollbar-thumb:hover,
  *::-webkit-scrollbar-corner {
    all: revert;
  }

  .site-click-burst,
  .site-click-ring,
  .site-click-star {
    display: none !important;
    animation: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .site-click-burst,
  .site-click-ring,
  .site-click-star {
    display: none !important;
    animation: none !important;
  }
}