:root {
  --bg: #e9e9e9;
  --text: #4a402e;
  --muted: rgba(74, 64, 46, 0.3);
  --lang-active: #5bc4b5;
  --border: rgba(74, 64, 46, 0.3);
  --weight-semibold: 500;
  --hub-blue: rgba(91, 173, 196, 0.9);
  --hub-blue-soft: rgba(91, 173, 196, 0.45);
  --hub-teal: rgba(91, 196, 181, 0.9);
  --hub-teal-soft: rgba(91, 196, 181, 0.45);
  --font: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  background-image: radial-gradient(
      circle at 50% 50%,
      rgba(255, 255, 255, 0.35) 0%,
      transparent 70%
    ),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

/* ── Top bar ── */

.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  pointer-events: none;
}

.top-bar-left,
.top-bar-right {
  pointer-events: auto;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 6px 10px;
  border: none;
  background: transparent;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(74, 64, 46, 0.3);
  border-radius: 6px;
  transition: color 0.2s;
}

.lang-toggle:hover {
  color: var(--text);
}

.lang-active {
  color: var(--lang-active);
  font-weight: 400;
}

.lang-inactive {
  color: rgba(74, 64, 46, 0.3);
}

.lang-sep {
  color: rgba(74, 64, 46, 0.3);
  margin: 0 1px;
}

.site-name {
  font-size: 13px;
  color: var(--text);
  letter-spacing: 0.02em;
}

.back-home {
  font-size: 13px;
  color: rgba(74, 64, 46, 0.3);
  letter-spacing: 0.02em;
  padding: 6px 10px;
  border-radius: 6px;
  transition: color 0.2s;
}

.back-home:hover {
  color: var(--text);
}

.back-home[hidden] {
  display: none;
}

/* ── Homepage hubs ── */

.page-home {
  overflow: hidden;
}

.home-main {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hub-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(48px, 14vw, 200px);
  width: 100%;
  padding: 0 24px;
}

.hub {
  position: relative;
  width: clamp(240px, 28vw, 340px);
  height: clamp(240px, 28vw, 340px);
  display: block;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  overflow: visible;
}

.hub:hover {
  text-decoration: none;
}

.hub-visual {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  overflow: visible;
}

.hub-particles {
  position: absolute;
  width: 82%;
  height: 82%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
}

.hub-particle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--size, 2px);
  height: var(--size, 2px);
  margin: calc(var(--size, 2px) / -2);
  border-radius: 50%;
  opacity: 0;
  animation: particle-drift var(--duration, 4.2s) ease-out infinite;
  animation-delay: var(--delay, 0s);
}

.hub-particle--blue {
  background: rgba(91, 173, 196, 0.75);
  box-shadow: 0 0 8px rgba(91, 173, 196, 0.55);
}

.hub-particle--teal {
  background: rgba(91, 196, 181, 0.75);
  box-shadow: 0 0 8px rgba(91, 196, 181, 0.55);
}

@keyframes particle-drift {
  0% {
    transform: rotate(var(--angle)) translateX(18%) scale(0.35);
    opacity: 0;
  }
  12% {
    opacity: 0.65;
  }
  55% {
    opacity: 0.35;
  }
  100% {
    transform: rotate(var(--angle)) translateX(var(--dist)) scale(1.15);
    opacity: 0;
  }
}

.hub-glow {
  position: absolute;
  width: 78%;
  height: 78%;
  border-radius: 50%;
  pointer-events: none;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  transform: scale(1);
  animation: glow-breathe 4.8s ease-in-out infinite;
}

.hub-glow--blue {
  background: radial-gradient(
    circle at 50% 50%,
    rgba(91, 173, 196, 0.96) 0%,
    rgba(91, 173, 196, 0.9) 28%,
    rgba(91, 173, 196, 0.55) 58%,
    rgba(91, 173, 196, 0.18) 78%,
    transparent 100%
  );
  filter: blur(18px);
}

.hub-glow--teal {
  background: radial-gradient(
    circle at 50% 50%,
    rgba(91, 196, 181, 0.96) 0%,
    rgba(91, 196, 181, 0.9) 28%,
    rgba(91, 196, 181, 0.55) 58%,
    rgba(91, 196, 181, 0.18) 78%,
    transparent 100%
  );
  filter: blur(18px);
}

@keyframes glow-breathe {
  0%,
  100% {
    opacity: 0.88;
    filter: blur(18px);
  }
  35% {
    opacity: 1;
    filter: blur(22px);
  }
  68% {
    opacity: 0.92;
    filter: blur(20px);
  }
}

.hub-title-group {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}

.hub-label {
  font-size: clamp(15px, 1.6vw, 18px);
  font-weight: 400;
  letter-spacing: 0.14em;
  color: #ffffff;
  line-height: 1.3;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.1);
}

.hub-period {
  font-size: clamp(11px, 1.1vw, 13px);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: #ffffff;
  line-height: 1.3;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.1);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.4s ease 0.06s, transform 0.4s ease 0.06s;
}

.hub-orbit {
  position: absolute;
  inset: 0;
  /* ring 72% wide, SVG r=48/50 → keyword radius slightly inward to sit in gaps */
  --ring-r: 34.56%;
  --kw-r: calc(var(--ring-r) * 0.965);
  --kw-d: 0.7071;
  opacity: 0;
  transition: opacity 0.45s ease;
  pointer-events: none;
  z-index: 2;
}

.hub.is-active .hub-orbit,
.hub:hover .hub-orbit {
  opacity: 1;
}

.hub.is-active .hub-ring,
.hub:hover .hub-ring {
  transform: translate(-50%, -50%);
}

.hub.is-active .hub-period,
.hub:hover .hub-period {
  opacity: 1;
  transform: translateY(0);
}

.hub.is-active .hub-glow,
.hub:hover .hub-glow {
  transform: scale(1.22);
  animation-duration: 3.4s;
}

.hub.is-active .hub-particle,
.hub:hover .hub-particle {
  animation-duration: calc(var(--duration, 4.2s) * 0.78);
}

.hub-ring {
  position: absolute;
  width: 72%;
  height: 72%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(74, 64, 46, 0.3);
  pointer-events: none;
  overflow: visible;
}

.hub-ring-guide {
  stroke: transparent;
}

.hub-ring-visible {
  stroke: currentColor;
}

.hub-keyword {
  position: absolute;
  font-size: clamp(11px, 1.1vw, 13px);
  letter-spacing: 0.1em;
  color: var(--text);
  white-space: nowrap;
  opacity: 0;
  z-index: 3;
  transition: opacity 0.4s ease 0.08s, transform 0.4s ease 0.08s;
  pointer-events: none;
}

/* tl=左上, tr=右上, bl=左下, br=右下 — on diagonal ring gaps, text stays horizontal */
.hub-keyword-tl {
  left: calc(50% - var(--kw-r) * var(--kw-d));
  top: calc(50% - var(--kw-r) * var(--kw-d));
  transform: translate(-50%, calc(-50% + 4px));
}

.hub-keyword-tr {
  left: calc(50% + var(--kw-r) * var(--kw-d));
  top: calc(50% - var(--kw-r) * var(--kw-d));
  transform: translate(-50%, calc(-50% + 4px));
}

.hub-keyword-bl {
  left: calc(50% - var(--kw-r) * var(--kw-d));
  top: calc(50% + var(--kw-r) * var(--kw-d));
  transform: translate(-50%, calc(-50% - 4px));
}

.hub-keyword-br {
  left: calc(50% + var(--kw-r) * var(--kw-d));
  top: calc(50% + var(--kw-r) * var(--kw-d));
  transform: translate(-50%, calc(-50% - 4px));
}

.hub.is-active .hub-keyword,
.hub:hover .hub-keyword {
  opacity: 0.5;
}

.hub.is-active .hub-keyword-tl,
.hub:hover .hub-keyword-tl {
  transform: translate(-50%, -50%);
}

.hub.is-active .hub-keyword-tr,
.hub:hover .hub-keyword-tr {
  transform: translate(-50%, -50%);
}

.hub.is-active .hub-keyword-bl,
.hub:hover .hub-keyword-bl {
  transform: translate(-50%, -50%);
}

.hub.is-active .hub-keyword-br,
.hub:hover .hub-keyword-br {
  transform: translate(-50%, -50%);
}

/* ── Category page ── */

/* ── Category: catalog layout ── */

.page-category--catalog {
  overflow-x: hidden;
}

.page-category--catalog .category-main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 40px 48px;
}

.catalog-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: clamp(20px, 3.2vw, 48px);
  width: 100%;
  max-width: 1280px;
}

.catalog-card {
  flex: 0 1 auto;
  width: clamp(140px, 16vw, 200px);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.catalog-card:hover {
  text-decoration: none;
}

.catalog-card-image-wrap {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 14px;
  overflow: hidden;
  background: #ddd;
}

.catalog-card-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.catalog-card:hover .catalog-card-image {
  transform: scale(1.08);
}

.catalog-card-index {
  display: block;
  margin-top: 14px;
  font-size: clamp(28px, 3.2vw, 38px);
  font-weight: 200;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--text);
}

.catalog-card-title {
  margin: 6px 0 0;
  font-size: clamp(14px, 1.4vw, 17px);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
  line-height: 1.3;
  color: var(--text);
}

.catalog-card-subtitle {
  margin: 4px 0 0;
  font-size: clamp(10px, 1vw, 12px);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.45;
  color: var(--text);
}

/* ── Category: catalog carousel (art practice) ── */

.page-category--catalog-carousel {
  overflow-x: hidden;
}

.page-category--catalog-carousel .category-main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px clamp(24px, 4vw, 48px) 48px;
}

.catalog-carousel {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
}

.catalog-carousel-inner {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: clamp(10px, 1.6vw, 20px);
  width: 100%;
  margin: 0 auto;
}

.catalog-carousel-viewport {
  --catalog-visible: 5;
  --catalog-gap: clamp(20px, 3.2vw, 48px);
  --catalog-card-width: 200px;
  flex: 0 0 auto;
  overflow: hidden;
  width: auto;
  max-width: 100%;
}

.catalog-carousel-track {
  display: flex;
  align-items: flex-start;
  gap: var(--catalog-gap);
  width: max-content;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.catalog-carousel-track .catalog-card {
  flex: 0 0 auto;
  min-width: 0;
}

.catalog-nav-btn {
  flex: 0 0 auto;
  align-self: flex-start;
  margin-top: calc(var(--catalog-card-width) * 0.5 - 14px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--text);
  opacity: 0.72;
  transition: opacity 0.2s ease;
}

.catalog-nav-btn:hover,
.catalog-nav-btn:focus-visible {
  opacity: 1;
  outline: none;
}

.catalog-nav-btn[hidden] {
  visibility: hidden;
  pointer-events: none;
}

.catalog-nav-glyph {
  display: block;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 200;
  line-height: 1;
  letter-spacing: 0;
  color: var(--text);
  transform: translateY(-1px);
}

.catalog-nav-btn--prev .catalog-nav-glyph {
  transform: scaleX(-1) translateY(-1px);
}

/* ── Category: carousel layout ── */

.page-category--carousel {
  overflow: hidden;
  height: 100%;
}

.page-category--carousel .category-main {
  height: 100vh;
  padding-top: 0;
}

.project-carousel {
  position: relative;
  width: 100%;
  height: 100vh;
}

.project-viewport {
  --visible: 4;
  --gap: 3px;
  --panel: calc((100% - (var(--visible) - 1) * var(--gap)) / var(--visible));
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.project-track {
  display: flex;
  flex-direction: row;
  height: 100%;
  gap: var(--gap);
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.project-block {
  position: relative;
  flex: 0 0 var(--panel);
  min-width: var(--panel);
  height: 100%;
  overflow: hidden;
  transition: flex-basis 0.55s cubic-bezier(0.4, 0, 0.2, 1),
    min-width 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-block-inner {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.project-block-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: rgba(18, 18, 18, 0.48);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 1;
  transition: opacity 0.45s ease;
  pointer-events: none;
}

.project-block.is-expanded .project-block-inner::before {
  opacity: 0;
}

.project-track.is-interacting .project-block.is-dimmed .project-block-inner::before {
  opacity: 1;
  background: rgba(12, 12, 12, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.project-track.is-interacting .project-block.is-dimmed {
  flex-basis: calc(var(--panel) * 0.55);
  min-width: calc(var(--panel) * 0.55);
}

.project-track.is-interacting .project-block.is-expanded {
  flex-basis: calc(var(--panel) * 2.35);
  min-width: calc(var(--panel) * 2.35);
  z-index: 3;
}

.project-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.68) saturate(0.8);
  transition: filter 0.45s ease;
}

.project-block.is-expanded .project-image {
  filter: brightness(1) saturate(1);
}

.project-track.is-interacting .project-block.is-dimmed .project-image {
  filter: brightness(0.55) saturate(0.7);
}

.project-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 3;
  padding: 24px 22px;
  color: #ffffff;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.78) 0%,
    rgba(0, 0, 0, 0.42) 40%,
    rgba(0, 0, 0, 0.08) 70%,
    transparent 100%
  );
  width: 100%;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.project-block.is-expanded .project-caption {
  white-space: normal;
}

.project-name {
  margin: 0;
  font-size: clamp(14px, 1.8vw, 24px);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.project-meta {
  margin: 5px 0 0;
  font-size: clamp(11px, 1.1vw, 13px);
  letter-spacing: 0.06em;
  opacity: 0.85;
  font-weight: 300;
}

.carousel-btn {
  position: absolute;
  bottom: 28px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: opacity 0.3s ease, transform 0.2s ease;
}

.carousel-btn:hover {
  transform: scale(1.05);
}

.carousel-btn[hidden] {
  display: none;
}

.carousel-btn--prev {
  left: 24px;
}

.carousel-btn--next {
  right: 24px;
}

.carousel-btn-plate {
  position: absolute;
  inset: 0;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.carousel-arrow {
  position: relative;
  z-index: 1;
  color: #ffffff;
  font-size: 18px;
  line-height: 1;
  font-weight: 300;
}

/* ── Project detail page ── */

.page-project .project-main {
  min-height: 100vh;
  padding: clamp(96px, 12vh, 128px) clamp(24px, 5vw, 56px) 80px;
}

.project-content {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
}

.project-detail {
  width: 100%;
}

/* ── Art practice exhibition detail ── */

.project-detail--art .project-art-body {
  display: grid;
  grid-template-columns: minmax(200px, 280px) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
  padding-top: clamp(36px, 5vw, 52px);
  border-top: 1px solid var(--border);
}

.project-art-label {
  padding-top: 2px;
}

.project-art-label-title {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 18px);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.project-art-meta-line {
  margin: 10px 0 0;
  font-size: clamp(12px, 1.2vw, 14px);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--text);
}

.project-art-description {
  margin: 14px 0 0;
  font-size: clamp(12px, 1.2vw, 14px);
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--text);
  max-width: 28ch;
  white-space: pre-line;
}

.project-art-description-title {
  margin: 14px 0 0;
  font-size: clamp(12px, 1.2vw, 14px);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.02em;
  line-height: 1.6;
  color: var(--text);
}

.project-art-description-title + .project-art-description {
  margin-top: 8px;
}

.project-art-media {
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 2vw, 24px);
  width: 100%;
  min-width: 0;
}

.project-art-block--video .project-media-embed {
  aspect-ratio: 16 / 9;
}

.project-art-block--wide .project-media-image,
.project-art-pair .project-media-image {
  display: block;
  width: 100%;
  height: auto;
}

.project-art-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(12px, 1.8vw, 18px);
  align-items: start;
}

.project-art-labeled-row {
  display: grid;
  grid-template-columns: minmax(64px, 108px) minmax(0, 1fr);
  gap: clamp(16px, 2.5vw, 28px);
  align-items: start;
}

.project-art-exhibition-label {
  padding-top: 2px;
}

.project-art-exhibition-label .project-media-image {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

.project-art-labeled-main {
  min-width: 0;
}

.project-detail--art .project-related {
  margin-top: clamp(96px, 14vw, 168px);
  padding-top: clamp(20px, 3vw, 32px);
}

.project-page-header {
  margin-bottom: clamp(36px, 6vw, 64px);
}

.project-page-title {
  margin: 0;
  font-size: clamp(26px, 3.2vw, 34px);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-align: left;
}

.project-page-tagline {
  margin: 10px 0 0;
  font-size: clamp(13px, 1.35vw, 15px);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.5;
  color: var(--text);
  text-align: left;
}

.project-section {
  display: grid;
  grid-template-columns: minmax(200px, 280px) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
  padding: clamp(36px, 5vw, 52px) 0;
  border-top: 1px solid var(--border);
}

.project-section-copy {
  padding-top: 4px;
}

.project-section-title {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 18px);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.project-section-body {
  margin: 12px 0 0;
  font-size: clamp(12px, 1.2vw, 14px);
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--text);
  max-width: 28ch;
}

.project-section-media {
  width: 100%;
  min-width: 0;
}

.project-section-media--concept {
  display: flex;
  align-items: flex-start;
  gap: clamp(20px, 3vw, 32px);
}

.project-section-media--concept .project-media-image {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.media-concept-art {
  flex: 0 1 46%;
  max-width: 320px;
  min-width: 180px;
}

.media-circuit {
  flex: 0 1 52%;
  max-width: 360px;
  min-width: 200px;
}

.project-section-media--wide-video .project-media-embed,
.project-section-media--wide-video .project-media-video {
  width: 100%;
  display: block;
  border-radius: 0;
  background: #111;
}

.project-media-embed {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #111;
}

.project-section-media--wide-video .project-media-embed {
  aspect-ratio: 16 / 9;
}

.project-section-media--wide-image .project-media-image,
.project-section-media--wide-image .media-doc-wide {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.project-section-media--final .media-demo-video {
  aspect-ratio: 16 / 9;
}

.project-media-vimeo,
.project-media-bilibili {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.project-media-embed--idle {
  cursor: pointer;
}

.project-media-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-media-play {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(0, 0, 0, 0.22);
  cursor: pointer;
  transition: background 0.2s ease;
}

.project-media-play:hover,
.project-media-play:focus-visible {
  background: rgba(0, 0, 0, 0.36);
  outline: none;
}

.project-media-play-icon {
  width: clamp(52px, 8vw, 68px);
  height: clamp(52px, 8vw, 68px);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.project-media-play-icon::before {
  content: "";
  display: block;
  margin-left: 5px;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  border-left: 18px solid #111;
}

.project-section-media--final {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(12px, 1.8vw, 18px);
  align-items: start;
}

.media-final-panel,
.media-final-wiring {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.media-demo-video {
  grid-column: 1 / -1;
  width: 100%;
}

.media-demo-video.project-media-embed,
.media-demo-video.project-media-video {
  display: block;
  object-fit: cover;
  background: #111;
}

.project-media-image,
.project-media-video {
  max-width: 100%;
  image-rendering: auto;
}

.project-media-image--zoomable {
  cursor: zoom-in;
}

.project-media-image--zoomable:focus-visible {
  outline: 2px solid rgba(0, 0, 0, 0.35);
  outline-offset: 3px;
}

body.project-lightbox-open {
  overflow: hidden;
}

.project-lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-lightbox[hidden] {
  display: none;
}

.project-lightbox-backdrop {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(0, 0, 0, 0.82);
  cursor: zoom-out;
}

.project-lightbox-stage {
  position: relative;
  z-index: 1;
  width: min(92vw, 1200px);
  height: min(82vh, 900px);
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  cursor: grab;
}

.project-lightbox-stage:active {
  cursor: grabbing;
}

.project-lightbox-image {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transform-origin: center center;
  transition: transform 0.08s ease-out;
  user-select: none;
  -webkit-user-drag: none;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.45);
}

.project-lightbox-toolbar {
  position: absolute;
  z-index: 2;
  bottom: clamp(20px, 4vh, 40px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.project-lightbox-btn {
  min-width: 40px;
  height: 40px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  font-size: 20px;
  line-height: 1;
  color: #111;
  cursor: pointer;
  transition: background 0.15s ease;
}

.project-lightbox-btn:hover,
.project-lightbox-btn:focus-visible {
  background: rgba(0, 0, 0, 0.08);
  outline: none;
}

.project-lightbox-close {
  font-size: 26px;
  margin-left: 4px;
}

.project-lightbox-nav {
  position: absolute;
  z-index: 2;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(44px, 5vw, 56px);
  height: clamp(44px, 5vw, 56px);
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: #111;
  font-size: clamp(28px, 4vw, 36px);
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
  transition: background 0.15s ease, transform 0.15s ease;
}

.project-lightbox-nav:hover,
.project-lightbox-nav:focus-visible {
  background: #fff;
  outline: none;
}

.project-lightbox-nav--prev {
  left: clamp(12px, 2.5vw, 28px);
}

.project-lightbox-nav--next {
  right: clamp(12px, 2.5vw, 28px);
}

.project-lightbox-nav[hidden] {
  display: none;
}

.project-lightbox-counter {
  min-width: 3.2em;
  padding: 0 4px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text);
  text-align: center;
}

.project-lightbox-counter[hidden] {
  display: none;
}

.project-related {
  margin-top: clamp(72px, 10vw, 120px);
  padding: clamp(56px, 7vw, 88px) 0 0;
  border-top: 1px solid var(--border);
}

.project-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 48px);
}

.project-related-card {
  text-decoration: none;
  color: inherit;
}

.project-related-card:hover {
  text-decoration: none;
}

.project-related-image-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 0;
  overflow: hidden;
  background: #ddd;
}

.project-related-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.45s ease;
}

.project-related-card:hover .project-related-image {
  transform: scale(1.05);
}

.project-related-title {
  margin: 12px 0 0;
  font-size: clamp(13px, 1.3vw, 15px);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
}

.project-related-subtitle {
  margin: 4px 0 0;
  font-size: clamp(10px, 1vw, 12px);
  color: var(--text);
  letter-spacing: 0.02em;
  line-height: 1.45;
}

.project-detail--fallback {
  text-align: center;
  padding: 40px 0;
}

.project-detail--fallback .project-page-title {
  text-align: center;
}

.project-placeholder {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

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

/* ── Misc ── */

.noscript {
  padding: 40px;
  text-align: center;
  color: var(--muted);
}

.page-load-error {
  max-width: 520px;
  margin: 0 auto;
  padding: 24px;
  text-align: center;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ── Responsive ── */

@media (max-width: 768px) and (orientation: portrait) {
  .project-viewport {
    --visible: 3;
  }

  .page-category--catalog .category-main,
  .page-category--catalog-carousel .category-main {
    align-items: flex-start;
    padding: 72px 20px 40px;
  }

  .catalog-grid {
    flex-wrap: wrap;
    gap: 28px 20px;
    justify-content: center;
  }

  .catalog-card {
    width: calc(50% - 10px);
    max-width: 180px;
  }
}

@media (max-width: 480px) {
  .catalog-card {
    width: calc(50% - 8px);
  }
}

@media (max-width: 768px) {
  .top-bar {
    padding: 16px 18px;
  }

  .hub-stage {
    flex-direction: column;
    gap: 56px;
    padding: 80px 20px 40px;
  }

  .hub {
    width: min(280px, 78vw);
    height: min(280px, 78vw);
  }

  .hub.is-active .hub-keyword,
  .hub:hover .hub-keyword {
    opacity: 0.5;
  }
}

@media (max-width: 768px) {
  .project-section {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .project-detail--art .project-art-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .project-art-description {
    max-width: none;
  }

  .project-section-body {
    max-width: none;
  }

  .project-section-media--concept {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .media-concept-art,
  .media-circuit {
    flex: 1 1 220px;
    max-width: none;
  }

  .project-related-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (max-width: 640px) {
  .project-related-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    max-width: 220px;
    margin: 0 auto;
  }

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

  .project-art-labeled-row {
    grid-template-columns: minmax(56px, 84px) minmax(0, 1fr);
    gap: 12px;
  }

  .project-caption {
    padding: 16px 12px;
  }

  .carousel-btn {
    bottom: 18px;
    width: 42px;
    height: 42px;
  }

  .carousel-btn--prev {
    left: 14px;
  }

  .carousel-btn--next {
    right: 14px;
  }
}