:root {
  color-scheme: dark;
  --bg: #020207;
  --ink: #f7f5ff;
  --muted: rgba(235, 231, 247, 0.64);
  --soft: rgba(235, 231, 247, 0.42);
  --line: rgba(226, 217, 255, 0.16);
  --panel: rgba(7, 7, 15, 0.58);
  --violet: #a47aff;
  --lime: #c8ff36;
  --cyan: #74dfff;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  font-family: Inter, "SF Pro Display", "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  background: var(--bg);
}

html {
  overflow: hidden;
}

body {
  min-height: 100svh;
  overflow: hidden;
  color: var(--ink);
  overscroll-behavior: none;
}

button,
a {
  color: inherit;
  font: inherit;
}

button {
  border: 0;
}

a {
  text-decoration: none;
}

button,
a[href] {
  -webkit-tap-highlight-color: transparent;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  border-radius: 999px;
  background: #fff;
  color: #09090d;
  padding: 0.72rem 1rem;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

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

#universe-canvas,
.fallback-art,
.space-vignette {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}

#universe-canvas {
  z-index: 0;
  display: block;
  cursor: grab;
  touch-action: none;
}

#universe-canvas.is-dragging {
  cursor: grabbing;
}

.fallback-art {
  z-index: 0;
  display: none;
  object-fit: cover;
  opacity: 0.58;
}

.webgl-fallback .fallback-art {
  display: block;
}

.webgl-fallback #universe-canvas {
  display: none;
}

.webgl-fallback .core-label,
.webgl-fallback .project-markers {
  display: none;
}

.space-vignette {
  z-index: 1;
  box-shadow:
    inset 0 0 190px 72px rgba(0, 0, 0, 0.76),
    inset 0 -110px 120px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

.app-shell {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  pointer-events: none;
}

.site-header {
  position: fixed;
  left: clamp(0.9rem, 1.2vw, 1.4rem);
  right: clamp(2rem, 6.3vw, 6.5rem);
  top: clamp(1.2rem, 2.5vw, 2rem);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  opacity: 0;
  pointer-events: auto;
  transform: translateY(-18px);
}

.scene-ready .site-header {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 900ms var(--ease), transform 900ms var(--ease);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.82rem;
}

.brand-mark {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid rgba(176, 143, 255, 0.52);
  border-radius: 50%;
  background: rgba(6, 6, 14, 0.7);
  box-shadow: 0 0 26px rgba(142, 92, 255, 0.2);
  font-size: 1.35rem;
  font-weight: 850;
  letter-spacing: -0.06em;
}

.brand-copy strong,
.brand-copy small {
  display: inline;
}

.brand-copy {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
}

.brand-copy strong {
  font-size: 1rem;
  font-weight: 560;
  letter-spacing: -0.02em;
}

.brand-copy small {
  color: var(--muted);
  font-size: 0.88rem;
  letter-spacing: 0.015em;
}

.brand-copy small::before {
  margin-right: 0.45rem;
  color: rgba(235, 231, 247, 0.38);
  content: "/";
}

.top-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.7vw, 1.65rem);
}

.top-nav a,
.top-nav button {
  position: relative;
  cursor: pointer;
  background: transparent;
  color: rgba(248, 246, 255, 0.75);
  font-size: 1rem;
  font-weight: 480;
  padding: 0.55rem 0.18rem;
  transition: color 180ms ease;
}

.top-nav a::after,
.top-nav button::after {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lime);
  content: "";
  opacity: 0;
  transform: translateX(-50%) scale(0);
  transition: opacity 180ms ease, transform 180ms ease;
}

.top-nav a:hover,
.top-nav button:hover,
.top-nav a:focus-visible,
.top-nav button:focus-visible {
  color: #fff;
  outline: none;
}

.top-nav a:hover::after,
.top-nav button:hover::after,
.top-nav a:focus-visible::after,
.top-nav button:focus-visible::after,
.top-nav [aria-current="page"]::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

.top-nav [aria-current="page"] {
  color: #fff;
}

.top-nav [aria-current="page"]::after {
  box-shadow: 0 0 14px 3px rgba(200, 255, 54, 0.34);
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
}

.hero-copy {
  position: absolute;
  left: clamp(1.6rem, 5.2vw, 5.25rem);
  top: 33.5%;
  z-index: 10;
  width: min(32vw, 485px);
  opacity: 0;
  transform: translateY(28px);
}

.scene-ready .hero-copy {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 900ms var(--ease) 180ms, transform 900ms var(--ease) 180ms;
}

.eyebrow {
  display: none;
  margin: 0 0 1.1rem;
  color: rgba(201, 189, 235, 0.66);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.14em;
}

.hero h1 {
  max-width: 520px;
  margin: 0;
  font-size: clamp(2.7rem, 3.25vw, 3.45rem);
  font-weight: 390;
  letter-spacing: -0.045em;
  line-height: 1.3;
  text-wrap: balance;
}

.hero-lede {
  max-width: 430px;
  margin: 1.15rem 0 0;
  color: var(--muted);
  font-size: clamp(0.94rem, 1vw, 1rem);
  line-height: 1.7;
}

.primary-action {
  min-width: 218px;
  margin-top: 2.45rem;
  cursor: pointer;
  border: 1px solid rgba(200, 255, 54, 0.64);
  border-radius: 999px;
  background: rgba(14, 19, 8, 0.74);
  box-shadow: 0 0 34px rgba(200, 255, 54, 0.12);
  color: var(--lime);
  font-size: 1rem;
  font-weight: 620;
  padding: 1rem 1.5rem;
  pointer-events: auto;
  transition:
    background-color 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.primary-action:hover,
.primary-action:focus-visible {
  background: var(--lime);
  box-shadow: 0 0 44px rgba(200, 255, 54, 0.3);
  color: #0a0d05;
  outline: none;
  transform: translateY(-2px);
}

.scene-ui {
  position: absolute;
  inset: 0;
  z-index: 8;
  pointer-events: none;
}

.scene-anchor {
  position: absolute;
  left: 0;
  top: 0;
  will-change: transform, opacity;
}

.core-label {
  display: grid;
  justify-items: center;
  opacity: 0;
  pointer-events: none;
  text-shadow: 0 0 34px rgba(184, 148, 255, 0.52);
  transform:
    translate3d(var(--core-x, 70vw), var(--core-y, 46vh), 0)
    translate(-50%, -50%);
}

.scene-ready .core-label {
  opacity: var(--core-opacity, 1);
  transition: opacity 800ms var(--ease) 350ms;
}

.core-label strong {
  color: rgba(214, 198, 255, 0.88);
  font-size: clamp(3.8rem, 5.7vw, 6.2rem);
  font-weight: 560;
  letter-spacing: -0.12em;
  line-height: 0.82;
}

.core-label small {
  margin-top: 1.2rem;
  color: rgba(239, 234, 255, 0.66);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.project-markers {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.project-marker {
  --project-accent: #a47aff;
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  gap: 0.62rem;
  cursor: pointer;
  background: transparent;
  opacity: var(--marker-opacity, 0);
  padding: 0.55rem;
  pointer-events: auto;
  transform:
    translate3d(var(--marker-x, -100px), var(--marker-y, -100px), 0)
    translate(-0.75rem, -50%);
  transition: opacity 240ms ease, color 180ms ease;
  will-change: transform, opacity;
}

.project-marker[data-project="yantu"] {
  --project-accent: #c8ff36;
}

.project-marker[data-project="flower"] {
  --project-accent: #b991ff;
}

.project-marker[data-project="maze"] {
  --project-accent: #73ddff;
}

.project-marker[data-project="games"] {
  --project-accent: #8f9cff;
}

.project-marker:focus-visible {
  border-radius: 999px;
  outline: 1px solid var(--project-accent);
  outline-offset: 3px;
}

.marker-orb {
  width: 11px;
  height: 11px;
  flex: 0 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 50%;
  background: rgba(13, 11, 24, 0.9);
  box-shadow: 0 0 14px var(--project-accent);
  transition: background-color 180ms ease, transform 180ms ease;
}

.marker-title {
  color: rgba(232, 228, 243, 0.58);
  font-size: 0.8rem;
  white-space: nowrap;
  transition: color 180ms ease, opacity 180ms ease;
}

.project-marker:hover .marker-orb,
.project-marker.is-active .marker-orb {
  background: var(--project-accent);
  transform: scale(1.2);
}

.project-marker:hover .marker-title {
  color: #fff;
}

.project-marker.is-active .marker-title {
  opacity: 0;
}

.project-detail {
  position: absolute;
  right: clamp(1.75rem, 2.7vw, 2.75rem);
  bottom: 15.5%;
  z-index: 12;
  width: min(18vw, 285px);
  opacity: 0;
  pointer-events: auto;
  transform: translateY(24px);
}

@media (min-aspect-ratio: 7 / 4) and (min-width: 1000px) {
  .project-detail {
    right: clamp(2.5rem, 5.5vw, 7rem);
    bottom: 15%;
    width: min(17vw, 270px);
  }

  .hero-copy {
    top: 34.5%;
  }
}

.scene-ready .project-detail {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 850ms var(--ease) 520ms, transform 850ms var(--ease) 520ms;
}

.project-count {
  display: none;
  margin: 0 0 0.72rem;
  color: var(--lime);
  font-size: 0.68rem;
  font-weight: 760;
  letter-spacing: 0.13em;
}

.project-detail h2 {
  margin: 0;
  color: var(--active-color, var(--lime));
  font-size: clamp(1.9rem, 2.15vw, 2.35rem);
  font-weight: 580;
  letter-spacing: -0.05em;
  line-height: 1;
  text-shadow: 0 0 28px color-mix(in srgb, var(--active-color, var(--lime)) 28%, transparent);
}

.project-keywords,
.project-description {
  margin: 0.82rem 0 0;
  color: rgba(241, 237, 250, 0.7);
  font-size: 0.92rem;
  line-height: 1.7;
}

.project-description {
  margin-top: 0.2rem;
  color: var(--soft);
}

.project-link {
  display: inline-flex;
  margin-top: 1.15rem;
  border-bottom: 1px solid var(--active-color, var(--lime));
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0 0.34rem;
  transition: color 180ms ease, padding 180ms ease;
}

.project-link:hover,
.project-link:focus-visible {
  color: var(--active-color, var(--lime));
  outline: none;
  padding-right: 0.35rem;
}

.interaction-hint {
  position: absolute;
  left: 50%;
  bottom: 3.4rem;
  z-index: 10;
  margin: 0;
  color: rgba(233, 228, 246, 0.52);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(14px);
  white-space: nowrap;
}

.scene-ready .interaction-hint {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  transition: opacity 900ms var(--ease) 700ms, transform 900ms var(--ease) 700ms;
}

.site-meta {
  position: fixed;
  left: clamp(1.25rem, 3.2vw, 3.5rem);
  right: clamp(1.25rem, 3.2vw, 3.5rem);
  bottom: 1.15rem;
  z-index: 12;
  display: flex;
  justify-content: space-between;
  color: rgba(222, 216, 237, 0.34);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  opacity: 0;
  pointer-events: auto;
}

.scene-ready .site-meta {
  opacity: 1;
  transition: opacity 900ms ease 850ms;
}

.site-meta a:hover,
.site-meta a:focus-visible {
  color: rgba(255, 255, 255, 0.72);
  outline: none;
}

.archive-dialog {
  width: min(620px, calc(100% - 2rem));
  border: 1px solid rgba(185, 159, 255, 0.3);
  border-radius: 24px;
  background: rgba(7, 7, 16, 0.94);
  box-shadow: 0 30px 120px rgba(0, 0, 0, 0.74);
  color: var(--ink);
  padding: clamp(1.25rem, 3vw, 2rem);
  backdrop-filter: blur(24px);
}

.archive-dialog::backdrop {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(8px);
}

.dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
}

.dialog-head p {
  margin: 0 0 0.5rem;
  color: var(--violet);
  font-size: 0.7rem;
  font-weight: 760;
  letter-spacing: 0.14em;
}

.dialog-head h2 {
  margin: 0;
  font-size: 2.2rem;
  letter-spacing: -0.05em;
}

.dialog-head button {
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  padding: 0.58rem 0.9rem;
}

.archive-dialog > p {
  margin: 1.5rem 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.archive-dialog dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 1.5rem 0 0;
}

.archive-dialog dl div {
  border-top: 1px solid var(--line);
  padding-top: 0.8rem;
}

.archive-dialog dt {
  color: var(--soft);
  font-size: 0.72rem;
}

.archive-dialog dd {
  margin: 0.34rem 0 0;
  font-size: 0.84rem;
}

.noscript-message {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  z-index: 50;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #090911;
  padding: 0.7rem 1rem;
  transform: translateX(-50%);
}

@media (max-width: 980px) {
  .brand-copy small {
    display: none;
  }

  .hero-copy {
    top: 24%;
    width: min(65vw, 520px);
  }

  .project-detail {
    right: 1.5rem;
    bottom: 12%;
    width: min(42vw, 320px);
  }

  .site-meta span {
    display: none;
  }

  .site-meta {
    justify-content: flex-end;
  }
}

@media (max-width: 700px) {
  .site-header {
    align-items: flex-start;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .brand-copy strong {
    max-width: 9rem;
    font-size: 0.82rem;
    line-height: 1.25;
  }

  .top-nav {
    gap: 0.65rem;
  }

  .top-nav a,
  .top-nav button {
    font-size: 0.75rem;
  }

  .top-nav a:first-child,
  .top-nav button[data-scene-action="reset"] {
    display: none;
  }

  .hero-copy {
    left: 1.3rem;
    top: 17%;
    width: calc(100% - 2.6rem);
  }

  .eyebrow {
    margin-bottom: 0.7rem;
    font-size: 0.6rem;
  }

  .hero h1 {
    max-width: 20rem;
    font-size: clamp(2.25rem, 10vw, 3.25rem);
  }

  .hero-lede {
    max-width: 19rem;
    margin-top: 0.75rem;
    font-size: 0.82rem;
    line-height: 1.6;
  }

  .primary-action {
    min-width: 128px;
    margin-top: 1.2rem;
    padding: 0.72rem 1rem;
  }

  .core-label strong {
    font-size: clamp(3.5rem, 18vw, 5rem);
  }

  .core-label small {
    margin-top: 0.65rem;
  }

  .project-detail {
    left: 1.3rem;
    right: auto;
    bottom: 8.5%;
    width: calc(100% - 2.6rem);
    padding: 0.95rem 1rem;
    border: 1px solid rgba(200, 255, 54, 0.16);
    border-radius: 18px;
    background: rgba(4, 5, 11, 0.7);
    backdrop-filter: blur(16px);
  }

  .project-detail h2 {
    font-size: 1.7rem;
  }

  .project-keywords,
  .project-description {
    font-size: 0.78rem;
  }

  .project-link {
    margin-top: 0.65rem;
  }

  .project-marker .marker-title {
    display: none;
  }

  .interaction-hint {
    display: none;
  }

  .site-meta {
    display: none;
  }

  .archive-dialog dl {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}