/* =========================================================
   Function Psi — projects: GitHub workbench + study index
   ========================================================= */

.work-hero--projects::before {
  content: "Ψ";
  color: rgba(201, 255, 74, 0.035);
  font-family: var(--serif);
  font-size: min(52vw, 44rem);
  font-style: italic;
  right: -4vw;
}

.work-hero--projects h1 {
  max-width: 12ch;
}

/* ---------- GitHub workbench ---------- */

.lab {
  position: relative;
  padding-block: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(155, 123, 255, 0.025), transparent 22rem),
    var(--bg);
}

.lab__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(2rem, 4vw, 3.2rem);
}

.lab__title {
  max-width: 14ch;
  margin-top: 1.1rem;
  font-size: clamp(2.8rem, 6.8vw, 6.8rem);
}

.lab__title em {
  color: var(--lime);
  font-family: var(--serif);
  font-weight: 400;
}

.lab__status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  flex: 0 0 auto;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.07em;
  line-height: 1;
  text-transform: uppercase;
  transition: border-color 0.3s var(--ease-out), color 0.3s var(--ease-out);
}

.lab__status[data-state="live"] {
  border-color: rgba(201, 255, 74, 0.35);
  color: var(--lime);
}

.lab__status[data-state="cache"] {
  border-color: rgba(112, 231, 255, 0.3);
  color: var(--cyan);
}

.lab__status[data-state="snapshot"] {
  border-color: rgba(255, 107, 69, 0.35);
  color: var(--ember);
}

.lab__pulse {
  position: relative;
  width: 0.42rem;
  height: 0.42rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}

.lab__status[data-state="loading"] .lab__pulse {
  animation: lab-pulse 1.2s ease-in-out infinite;
}

@keyframes lab-pulse {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.8);
  }
  50% {
    opacity: 1;
    transform: scale(1);
  }
}

.lab__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.lab-stat {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: clamp(1.1rem, 2.4vw, 1.8rem) 0;
  padding-right: 1rem;
}

.lab-stat + .lab-stat {
  padding-left: clamp(1rem, 2.2vw, 2rem);
  border-left: 1px solid var(--line);
}

.lab-stat__value {
  color: var(--ink);
  font-size: clamp(1.9rem, 3.4vw, 3.2rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.lab-stat__label {
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab__tools {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.1rem;
  border-bottom: 1px solid var(--line);
}

.lab__search {
  display: flex;
  min-width: min(24rem, 100%);
  flex-direction: column;
  gap: 0.45rem;
}

.lab__search span,
.lab__sort span {
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab__search input {
  width: 100%;
  padding: 0.55rem 0;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  transition: border-color 0.3s var(--ease-out);
}

.lab__search input::placeholder {
  color: var(--quiet);
}

.lab__search input:focus {
  border-color: var(--lime);
}

.lab__tool-right {
  display: flex;
  align-items: flex-end;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.lab__langs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.lang-chip {
  padding: 0.45rem 0.65rem;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
  transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.lang-chip:hover,
.lang-chip:focus-visible {
  border-color: var(--line-strong);
  color: var(--ink);
}

.lang-chip.is-active {
  border-color: var(--lime);
  background: var(--lime);
  color: #08090a;
}

.lab__sort {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.lab__sort select {
  min-height: 2rem;
  padding: 0.35rem 1.8rem 0.35rem 0.55rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.4rem;
  background-color: var(--panel);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.02em;
}

.lab__refresh {
  min-height: 2rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease;
}

.lab__refresh:hover,
.lab__refresh:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
}

.lab__refresh:disabled {
  cursor: wait;
  opacity: 0.55;
}

.lab__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.8rem, 1.6vw, 1.2rem);
  margin-top: clamp(1.5rem, 3vw, 2.4rem);
}

.repo-card {
  position: relative;
  display: flex;
  min-height: 21rem;
  flex-direction: column;
  gap: 0.9rem;
  padding: clamp(1.15rem, 2.2vw, 1.7rem);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background:
    radial-gradient(circle at 100% 0%, rgba(201, 255, 74, 0.04), transparent 14rem),
    var(--panel);
  transition:
    border-color 0.35s var(--ease-out),
    background-color 0.35s var(--ease-out),
    transform 0.35s var(--ease-out);
}

.repo-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--lime), transparent);
  opacity: 0;
  transform: translateX(-100%);
  transition: opacity 0.3s ease;
}

.repo-card:hover {
  border-color: var(--line-strong);
  background-color: var(--panel-soft);
  transform: translateY(-3px);
}

.repo-card:hover::after {
  opacity: 0.7;
  animation: repo-scan 1.4s var(--ease-out);
}

@keyframes repo-scan {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

.repo-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.repo-card__index,
.repo-card__state {
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.repo-card__state {
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.repo-card__title {
  font-size: clamp(1.55rem, 2.5vw, 2.25rem);
  line-height: 0.95;
}

.repo-card__title a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  transition: color 0.25s ease;
}

.repo-card__title a:hover,
.repo-card__title a:focus-visible {
  color: var(--lime);
}

.repo-card__arrow {
  color: var(--lime);
  font-family: var(--mono);
  font-size: 0.6em;
  letter-spacing: 0;
}

.repo-card__desc {
  max-width: 36rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.repo-card__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  min-height: 1.6rem;
}

.repo-card__topics span {
  padding: 0.3rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.52rem;
  letter-spacing: 0.04em;
  line-height: 1;
}

.repo-card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.03em;
}

.repo-card__lang,
.repo-card__stat {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.repo-card__lang i {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.12);
}

.repo-card__symbol {
  color: var(--ink-dim);
  font-size: 0.9em;
}

.repo-card__updated {
  margin-left: auto;
}

.repo-card__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  padding-top: 0.2rem;
}

.repo-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: color 0.25s ease;
}

.repo-card__link span {
  color: var(--quiet);
}

.repo-card__link:hover,
.repo-card__link:focus-visible {
  color: var(--lime);
}

.repo-card__link--live {
  color: var(--lime);
}

.repo-card--skeleton {
  gap: 1rem;
  justify-content: flex-start;
  pointer-events: none;
}

.repo-card--skeleton span {
  display: block;
  border-radius: 0.35rem;
  background: linear-gradient(90deg, var(--panel-soft) 20%, rgba(243, 241, 234, 0.08) 50%, var(--panel-soft) 80%);
  background-size: 220% 100%;
  animation: repo-shimmer 1.4s linear infinite;
}

.repo-card--skeleton span:nth-child(1) {
  width: 22%;
  height: 0.65rem;
}

.repo-card--skeleton span:nth-child(2) {
  width: 58%;
  height: 2rem;
}

.repo-card--skeleton span:nth-child(3) {
  width: 100%;
  height: 0.7rem;
}

.repo-card--skeleton span:nth-child(4) {
  width: 74%;
  height: 0.7rem;
}

@keyframes repo-shimmer {
  from {
    background-position: 120% 0;
  }
  to {
    background-position: -120% 0;
  }
}

.lab__empty {
  margin-top: 1.5rem;
  padding: 2.5rem 1rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-align: center;
}

.lab__foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-top: clamp(1.5rem, 3vw, 2.2rem);
}

.lab__foot p {
  max-width: 46rem;
  color: var(--quiet);
  font-size: 0.82rem;
  line-height: 1.6;
}

.lab__foot code {
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 0.78em;
}

/* ---------- selected studies ---------- */

.studies {
  padding-block: clamp(4.5rem, 9vw, 8rem);
  border-bottom: 1px solid var(--line);
}

.studies__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(2rem, 6vw, 7rem);
  margin-bottom: clamp(2.2rem, 4vw, 3.5rem);
}

.studies__title {
  max-width: 14ch;
  margin-top: 1.1rem;
  font-size: clamp(2.9rem, 7vw, 7rem);
}

.studies__title em {
  color: var(--lime);
  font-family: var(--serif);
  font-weight: 400;
}

.studies__aside {
  max-width: 28rem;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.65;
}

.studies__aside .mono {
  margin-top: 1rem;
  color: var(--quiet);
  font-size: 0.58rem;
}

.studies__toolbar {
  border-top: 1px solid var(--line);
}

.study-list {
  border-top: 1px solid var(--line);
}

.study-row {
  position: relative;
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 1fr) clamp(9rem, 15vw, 14rem);
  align-items: center;
  gap: clamp(1rem, 2.6vw, 2.5rem);
  padding: clamp(1.4rem, 2.8vw, 2.3rem) 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.35s var(--ease-out);
}

.study-row::before {
  content: "";
  position: absolute;
  top: 0;
  left: calc(var(--pad) * -0.5);
  width: 2px;
  height: 100%;
  background: var(--lime);
  opacity: 0;
  transform: scaleY(0.4);
  transition: opacity 0.3s ease, transform 0.35s var(--ease-out);
}

.study-row:hover,
.study-row:focus-visible {
  background: rgba(243, 241, 234, 0.025);
}

.study-row:hover::before,
.study-row:focus-visible::before {
  opacity: 1;
  transform: scaleY(1);
}

.study-row__index {
  align-self: start;
  padding-top: 0.35rem;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
}

.study-row__meta {
  display: flex;
  gap: 1rem;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.study-row__title {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-top: 0.55rem;
  font-size: clamp(1.9rem, 3.8vw, 3.4rem);
  line-height: 0.94;
  transition: color 0.3s ease;
}

.study-row__title em {
  color: var(--lime);
  font-family: var(--serif);
  font-weight: 400;
}

.study-row__arrow {
  color: var(--lime);
  font-family: var(--mono);
  font-size: 0.45em;
  letter-spacing: 0;
  opacity: 0;
  transform: translate(-4px, 4px);
  transition: opacity 0.3s ease, transform 0.3s var(--ease-out);
}

.study-row:hover .study-row__arrow,
.study-row:focus-visible .study-row__arrow {
  opacity: 1;
  transform: translate(0, 0);
}

.study-row__desc {
  max-width: 42rem;
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.study-row__role {
  margin-top: 0.65rem;
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.study-row__thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: var(--panel);
}

.study-row__thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 55%, rgba(201, 255, 74, 0.14));
  opacity: 0;
  transition: opacity 0.35s ease;
}

.study-row__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.82);
  transform: scale(1.02);
  transition: transform 0.6s var(--ease-out), filter 0.45s ease;
}

.study-row:hover .study-row__thumb img,
.study-row:focus-visible .study-row__thumb img {
  filter: saturate(1);
  transform: scale(1.07);
}

.study-row:hover .study-row__thumb::after,
.study-row:focus-visible .study-row__thumb::after {
  opacity: 1;
}

.study-row[hidden] {
  display: none !important;
}

@media (max-width: 1100px) {
  .lab__tools {
    align-items: stretch;
    flex-direction: column;
  }

  .lab__search {
    min-width: 100%;
  }

  .lab__tool-right {
    justify-content: space-between;
  }

  .study-row {
    grid-template-columns: 2.6rem minmax(0, 1fr) clamp(7rem, 16vw, 10rem);
  }
}

@media (max-width: 900px) {
  .lab__head,
  .studies__head {
    align-items: flex-start;
    flex-direction: column;
  }

  .lab__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lab-stat:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .lab-stat:nth-child(4) {
    border-top: 1px solid var(--line);
  }

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

  .repo-card {
    min-height: 0;
  }

  .lab__foot {
    align-items: flex-start;
    flex-direction: column;
    gap: 1.2rem;
  }

  .study-row {
    grid-template-columns: 2.2rem minmax(0, 1fr) 7.5rem;
    gap: 1rem;
  }

  .study-row__desc {
    display: none;
  }
}

@media (max-width: 600px) {
  .lab__tool-right {
    align-items: stretch;
    flex-direction: column;
  }

  .lab__langs {
    order: 2;
  }

  .lab__refresh {
    align-self: flex-start;
  }

  .lab-stat__value {
    font-size: 1.8rem;
  }

  .repo-card__updated {
    width: 100%;
    margin-left: 0;
  }

  .study-row {
    grid-template-columns: 1.7rem minmax(0, 1fr) 4.6rem;
    padding-block: 1.1rem;
  }

  .study-row__title {
    font-size: clamp(1.45rem, 7vw, 2rem);
  }

  .study-row__role {
    display: none;
  }

  .study-row__thumb {
    aspect-ratio: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .repo-card,
  .repo-card::after,
  .repo-card--skeleton span,
  .study-row,
  .study-row__thumb img,
  .lab__status .lab__pulse {
    animation: none !important;
    transition: none !important;
  }

  .repo-card:hover {
    transform: none;
  }
}