:root {
  color-scheme: light;
  font-family: "Helvetica Neue", "Hiragino Sans", "Yu Gothic", sans-serif;
  font-synthesis: none;
  --paper: #f1efe7;
  --ink: #17221a;
  --muted: #697069;
  --line: rgb(23 34 26 / 18%);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  min-width: 20rem;
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 14% 18%, rgb(255 255 255 / 72%), transparent 28rem),
    radial-gradient(circle at 88% 82%, rgb(210 220 195 / 52%), transparent 32rem),
    var(--paper);
  color: var(--ink);
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.site-header,
.site-footer {
  position: fixed;
  z-index: 2;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: clamp(1rem, 2.5vw, 2.5rem);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header {
  top: 0;
  padding-top: 1.15rem;
}

.layout-toggle {
  padding: 0.42rem 0.68rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgb(241 239 231 / 82%);
  color: var(--ink);
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  cursor: pointer;
  backdrop-filter: blur(0.5rem);
}

.layout-toggle:hover:not(:disabled),
.layout-toggle[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

.layout-toggle:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.layout-toggle:disabled {
  cursor: wait;
  opacity: 0.45;
}

.site-footer {
  bottom: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  padding-bottom: 1.15rem;
  color: var(--muted);
}

.social-links {
  display: flex;
  gap: 0.9rem;
  justify-self: end;
  white-space: nowrap;
}

.site-header p,
.site-footer p {
  margin: 0;
}

.site-name {
  font-weight: 700;
}

.site-note {
  color: var(--muted);
}

.concept-field {
  position: relative;
  height: 100vh;
  height: 100svh;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
}

.concept {
  position: absolute;
  top: 50%;
  left: 50%;
  max-width: min(92vw, 26ch);
  margin: 0;
  color: var(--concept-color, var(--ink));
  font-size: var(--concept-size, 2rem);
  font-weight: var(--concept-weight, 600);
  line-height: 0.96;
  letter-spacing: -0.055em;
  overflow-wrap: anywhere;
  text-align: center;
  text-wrap: balance;
  opacity: 0;
  transform: translate(-50%, -50%) rotate(var(--concept-tilt, 0deg));
  transition:
    top 900ms cubic-bezier(0.22, 1, 0.36, 1),
    left 900ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 450ms ease,
    transform 900ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--concept-delay, 0ms);
  will-change: top, left, transform;
}

.concept[data-positioned="true"] {
  opacity: 1;
}

.concept-field[data-layout="cluster"] .concept {
  transform: translate(-50%, -50%) rotate(0deg);
}

.concept[data-category="project"],
.legend-item[data-category="project"] {
  --concept-color: #c44924;
}

.concept[data-category="identity"],
.legend-item[data-category="identity"] {
  --concept-color: #2d2926;
}

.concept[data-category="interest"],
.legend-item[data-category="interest"] {
  --concept-color: #b06b16;
}

.concept[data-category="research"],
.legend-item[data-category="research"] {
  --concept-color: #2856a7;
}

.concept[data-category="tech-skill"],
.legend-item[data-category="tech-skill"] {
  --concept-color: #14756c;
}

.concept[data-category="tool"],
.legend-item[data-category="tool"] {
  --concept-color: #267047;
}

.concept[data-category="music"],
.legend-item[data-category="music"] {
  --concept-color: #9b3d74;
}

.concept[data-category="books"],
.legend-item[data-category="books"] {
  --concept-color: #80552f;
}

.concept[data-category="thought"],
.legend-item[data-category="thought"] {
  --concept-color: #8b3f72;
}

.category-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 0.8rem;
  max-width: 42rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.58rem;
  letter-spacing: 0.08em;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--concept-color, var(--ink));
  white-space: nowrap;
}

.legend-item::before {
  width: 0.42rem;
  height: 0.42rem;
  background: currentColor;
  border-radius: 50%;
  content: "";
}

.loading {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.5rem);
  transform: translate(-50%, -50%);
}

.error {
  color: #a32d1f;
}

noscript {
  position: fixed;
  inset: auto 1rem 1rem;
  padding: 0.75rem;
  background: var(--paper);
  border: 1px solid var(--line);
}

@media (max-width: 44rem) {
  .site-note {
    display: none;
  }

  .concept {
    max-width: 100%;
    font-size: var(--concept-size-mobile, 0.7rem);
    line-height: 1.02;
  }

  .site-footer {
    grid-template-columns: 1fr auto;
    row-gap: 0.8rem;
  }

  .category-legend {
    grid-column: 1 / -1;
    grid-row: 1;
    max-width: 28rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .concept {
    transition: none;
  }
}