:root {
  --bg: rgb(254, 254, 254);
  --ink: rgb(30, 30, 30);
  --muted: rgba(30, 30, 30, 0.64);
  --line: rgb(30, 30, 30);
  --chrome: rgb(30, 30, 30);
  --chrome-ink: rgb(255, 255, 255);
  --panel: rgb(255, 255, 255);
  --wash: rgb(243, 134, 161);
  --wash-2: rgb(255, 196, 210);
  --ok: rgb(30, 30, 30);
  --bad: rgb(176, 32, 64);
  --sans: "Host Grotesk", "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  --mono: "JetBrains Mono", "Fragment Mono", "Cascadia Code", ui-monospace, monospace;
  --space: clamp(1.1rem, 3.4vw, 2.4rem);
  --max: 72rem;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); }
body { position: relative; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; scroll-padding-top: 1.2rem; }
body {
  min-height: 100dvh;
  background-image: radial-gradient(circle, rgba(30, 30, 30, 0.16) 0.7px, transparent 0.8px);
  background-size: 11px 11px;
}
body.plaza-page {
  background-image:
    radial-gradient(ellipse 80% 42% at 50% -8%, color-mix(in srgb, var(--wash) 72%, white), transparent 70%),
    radial-gradient(circle, rgba(30, 30, 30, 0.16) 0.7px, transparent 0.8px);
  background-size: auto, 11px 11px;
}
.pixel-cloud {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
  z-index: 0;
  object-fit: contain;
  object-position: center top;
}
a { color: inherit; }
button, input, textarea { font: inherit; color: inherit; }

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}
.skip:focus { left: var(--space); top: 0.6rem; background: var(--panel); padding: 0.4rem 0.6rem; border: 1px solid var(--line); }

.shell { position: relative; z-index: 1; min-height: 100dvh; }
.ticker {
  position: absolute;
  left: 0.35rem;
  top: 7.2rem;
  bottom: 6rem;
  width: 1.1rem;
  overflow: hidden;
  pointer-events: none;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  white-space: nowrap;
}
.frame {
  position: relative;
  margin: 0 var(--space);
}
.frame .inner {
  position: relative;
  min-height: calc(100dvh - 3.4rem);
}

.top {
  height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 var(--space);
}
.mark {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  text-decoration: none;
}
.mark img {
  display: block;
  width: auto;
  height: 32px;
  image-rendering: pixelated;
}
nav {
  display: flex;
  gap: 0.85rem;
  align-items: center;
  font-size: 0.95rem;
}
nav a { text-decoration: none; }
nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 0.22em; }
.dot { color: var(--muted); pointer-events: none; }
.top-end { justify-self: end; }

main { padding: 0 0 4.5rem; }
.foot {
  background: var(--wash);
  color: var(--ink);
  padding: 1.15rem var(--space);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
}
.foot p { margin: 0; }
.foot a { text-underline-offset: 0.16em; }

.home { padding: 0 0 0; }
.hero {
  --cloud-h: calc(100vw * 540 / 1440);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: max(16rem, calc(var(--cloud-h) - 72px));
  padding: 0 var(--space) 2.2rem;
  text-align: center;
}
.kicker {
  margin: 0 0 1.1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}
.hero h1 {
  margin: max(2.4rem, calc(var(--cloud-h) / 2 - 72px)) 0 0;
  transform: translateY(-50%);
  font-size: clamp(3.4rem, 12vw, 8rem);
  font-weight: 600;
  letter-spacing: -0.06em;
  line-height: 0.84;
}
.hero .actions { margin-top: -0.35rem; }
.lede {
  margin: 1.4rem auto 0;
  max-width: 36ch;
  color: var(--muted);
  line-height: 1.45;
  font-size: 1.05rem;
}
.actions { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; margin-top: 1.5rem; }

.win {
  background: var(--panel);
  border: 1px solid var(--line);
  width: min(28rem, 100%);
  text-align: left;
  box-shadow: 6px 8px 0 rgba(30, 30, 30, 0.04);
}
.win-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--chrome);
  color: var(--chrome-ink);
  padding: 0.32rem 0.55rem 0.32rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.01em;
}
.win-ops { display: flex; gap: 0.28rem; }
.win-ops i {
  display: block;
  width: 11px;
  height: 11px;
  border: 1px solid var(--chrome-ink);
  font-style: normal;
}
.win-close {
  appearance: none;
  border: 1px solid var(--chrome-ink);
  background: transparent;
  color: var(--chrome-ink);
  min-height: 0;
  padding: 0.08rem 0.38rem;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.win-close:hover,
.win-close:focus-visible {
  background: var(--chrome-ink);
  color: var(--chrome);
  outline: 0;
}
.win-body { padding: 0.85rem 0.9rem 0.55rem; background: var(--panel); }
.win-body h2 { margin: 0 0 0.7rem; font-size: 0.95rem; font-weight: 600; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0 0.95rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn.ghost { background: transparent; color: var(--ink); }

.q { display: grid; grid-template-columns: 5.4rem 1fr auto; gap: 0.55rem; padding: 0.7rem 0; border-top: 1px solid var(--ink); }
.q:first-of-type { border-top: 0; padding-top: 0; }
.q dt { margin: 0; font-family: var(--mono); font-size: 0.74rem; color: var(--muted); }
.q dd { margin: 0; }
.q strong { font-family: var(--mono); font-size: 0.88rem; }

.sheet {
  padding: 1.6rem var(--space) 4.8rem;
}
.sheet h2 {
  margin: 0 0 1.8rem;
  max-width: 16em;
  font-size: clamp(1.7rem, 4.4vw, 2.7rem);
  letter-spacing: -0.04em;
  line-height: 1.18;
  font-weight: 600;
}
.band-note {
  margin: -0.6rem 0 1.5rem;
  max-width: 46ch;
  color: var(--ink);
}
.lineage {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}
.lineage .win { width: 100%; }
.lineage-k {
  margin: 0 0 0.35rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
}
.lineage h3 { margin: 0 0 0.25rem; font-size: 1.05rem; letter-spacing: -0.03em; }
.lineage p { margin: 0; color: var(--muted); font-size: 0.86rem; }

.os-band {
  padding: 0.4rem var(--space) 0.8rem;
}
.os-desk {
  display: grid;
  grid-template-columns: minmax(9.6rem, 11.4rem) minmax(9.6rem, 11.4rem) minmax(15rem, 18rem) minmax(11rem, 13rem);
  justify-content: center;
  gap: 0.7rem 0.9rem;
  align-items: start;
  max-width: 56rem;
  margin: 0 auto 2rem;
}
.os-w { min-width: 0; }
.os-w .win {
  width: 100%;
  height: 100%;
  box-shadow: none;
}
.os-w .win-body { padding: 0.55rem 0.65rem 0.5rem; }
.os-w h3 { margin: 0 0 0.2rem; font-size: 0.95rem; letter-spacing: -0.03em; line-height: 1.15; }
.os-w p { margin: 0; font-size: 0.78rem; color: var(--ink); }
.os-k { font-family: var(--mono); font-size: 1.15rem; letter-spacing: -0.04em; }
.os-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.55rem;
  margin-top: 0.35rem;
  font-family: var(--mono);
  font-size: 0.72rem;
}
.os-lm { margin-top: 2.6rem; }
.os-llm { margin-top: 4.4rem; }
.os-rlhf { margin-top: 1.1rem; }
.os-clock { margin-top: 0; }
.os-date, .os-time { font-family: var(--mono); }
.os-time { font-size: 1rem; margin-top: 0.2rem; }
.os-dots { color: var(--muted); margin-top: 0.25rem; }
.split {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 0.8fr;
  gap: 1.6rem 1.8rem;
  margin: 0 0 2.4rem;
}
.split h3, .bento h3 {
  margin: 0 0 0.55rem;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}
.split p, .bento p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  max-width: 46ch;
}
.dump {
  border: 1px solid var(--ink);
  background: var(--panel);
  min-width: 0;
}
.dump pre {
  border: 0;
  height: 100%;
  overflow: hidden;
  word-break: break-all;
  color: var(--muted);
}
.bento {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--ink);
  background: var(--panel);
}
.bento article {
  padding: 1.2rem 1.15rem 1.35rem;
  border-right: 1px solid var(--ink);
}
.bento article:last-child { border-right: 0; }
.conf-grid {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0.28rem;
  margin: 0.85rem 0 0.55rem;
}
.conf-grid i {
  display: block;
  aspect-ratio: 1;
  border: 1px solid var(--ink);
  background: color-mix(in srgb, var(--ink) 8%, white);
}
.conf-grid i.on { background: var(--ink); }
.conf-ends {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
}
.section { padding: 3.4rem 0 0; max-width: var(--max); margin: 0 auto; }
.section h2 {
  margin: 0 0 0.35rem;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  letter-spacing: -0.055em;
  line-height: 0.92;
  font-weight: 600;
}
.section .note { margin: 0 0 1.5rem; color: var(--muted); max-width: 46ch; }

.meta { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); margin-bottom: 0.3rem; }
.title { margin: 0 0 0.3rem; font-size: 1.35rem; letter-spacing: -0.035em; font-weight: 600; }
.summary { margin: 0; color: var(--muted); max-width: 46ch; }

.empty { padding: 1.2rem 0 0; color: var(--muted); }

.page { padding: 2.2rem 0 0; max-width: 44rem; margin: 0 auto; }
.page h1 {
  margin: 0 0 0.55rem;
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  letter-spacing: -0.055em;
  line-height: 0.92;
  font-weight: 600;
}
.page .lead { color: var(--muted); margin: 0 0 1.6rem; max-width: 42ch; }

.plaza { max-width: var(--max); }
.plaza-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.4rem;
}
.plaza-head h1 { margin: 0; }
.cats { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0 0 1.5rem; }
.cat {
  display: inline-flex;
  align-items: center;
  min-height: 1.9rem;
  padding: 0 0.7rem;
  border: 1px solid var(--ink);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.76rem;
}
.cat.on { background: var(--ink); color: var(--bg); }
.plays {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.play {
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: 14rem;
  background: var(--panel);
  border: 1px solid var(--ink);
  box-shadow: 6px 8px 0 rgba(30, 30, 30, 0.04);
}
.play-body { padding: 1.05rem 1.05rem 0.4rem; }
.play-title {
  --play-lines: calc(1.35rem * 1.2 + 0.18rem + 0.74rem * 1.3);
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 0.55rem;
  margin: 0 0 0.45rem;
}
.play-copy { min-width: 0; }
.play .title {
  margin: 0;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}
.play .meta {
  margin: 0.18rem 0 0;
  line-height: 1.3;
}
.play-mark {
  display: grid;
  place-items: center;
  width: var(--play-lines);
  height: var(--play-lines);
  margin: 0;
  border: 1px solid var(--ink);
  background: var(--bg);
}
.play-mark svg {
  display: block;
  width: 52%;
  height: 52%;
}
.link {
  position: relative;
  display: inline-block;
  width: fit-content;
  margin: 0.7rem 0 0;
  padding-bottom: 0.16em;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink);
  text-decoration: none;
}
.link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s ease;
}
.link:hover::after,
.link:focus-visible::after {
  transform: scaleX(1);
}
.stats {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.45rem 1rem 0.8rem;
}
.stats .link {
  margin: 0 0 0 auto;
  max-width: 46%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.like {
  border: 0;
  background: none;
  padding: 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.76rem;
}
.like[aria-pressed="true"] { font-weight: 600; }
.views { font-family: var(--mono); font-size: 0.76rem; color: var(--muted); }
.text-btn {
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 0.16em;
}
.actions.right { justify-content: flex-end; }
dialog.upload {
  border: 0;
  padding: 0;
  background: transparent;
  width: min(40rem, calc(100vw - 2rem));
  max-width: calc(100vw - 2rem);
}
dialog.upload::backdrop { background: rgba(30, 30, 30, 0.4); }
dialog.upload .win { width: 100%; }
dialog.upload textarea { min-height: 5.5rem; }
.review-note {
  margin: 0;
  font-size: 0.86rem;
  font-family: var(--mono);
  color: var(--wash);
  line-height: 1.45;
}
.review-note.bad { color: var(--bad); }

form { display: grid; gap: 1.05rem; }
label { display: grid; gap: 0.35rem; }
label span { font-size: 0.9rem; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--ink);
  background: var(--panel);
  border-radius: 0;
  padding: 0.7rem 0.75rem;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--ink); outline-offset: 2px; }
textarea { min-height: 8rem; resize: vertical; }
.help, .error { margin: 0; font-size: 0.82rem; font-family: var(--mono); }
.help { color: var(--muted); }
.error { color: var(--bad); }
.banner {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--ink);
  background: var(--panel);
}
.banner.bad { background: color-mix(in srgb, var(--wash) 35%, white); }

.verdict { display: flex; flex-wrap: wrap; gap: 0.8rem 1.5rem; margin: 1.2rem 0 1.6rem; }
.verdict b { display: block; font-family: var(--mono); font-size: 1.2rem; }
.verdict span { color: var(--muted); font-size: 0.82rem; }
.ok, .no { font-family: var(--mono); font-size: 0.88rem; }
.block { margin: 1.6rem 0 0; }
.block h2 { margin: 0 0 0.5rem; font-size: 0.92rem; }
pre {
  margin: 0;
  padding: 0.9rem;
  background: var(--panel);
  border: 1px solid var(--ink);
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

@media (max-width: 900px) {
  .split, .lineage { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
  .dump { display: none; }
  .bento { grid-template-columns: 1fr; }
  .bento article { border-right: 0; border-bottom: 1px solid var(--ink); }
  .bento article:last-child { border-bottom: 0; }
  .os-desk {
    grid-template-columns: 1fr 1fr;
    max-width: 36rem;
  }
  .os-lm, .os-llm, .os-rlhf, .os-clock { margin-top: 0; }
}

@media (max-width: 767px) {
  .top { grid-template-columns: 1fr auto; height: auto; padding: 0.85rem var(--space); gap: 0.45rem 1rem; }
  nav { grid-column: 1 / -1; justify-content: flex-start; flex-wrap: wrap; }
  .top-end { display: none; }
  .ticker { display: none; }
  .hero { min-height: max(14rem, calc(var(--cloud-h) - 4.6rem)); padding-top: 0; }
  .hero h1 { max-width: none; margin-top: max(2.8rem, calc(var(--cloud-h) / 2 - 4.6rem)); }
  .os-desk { grid-template-columns: 1fr; }
  .lineage { grid-template-columns: 1fr; }
  .plaza-head { flex-direction: column; align-items: stretch; }
  .plays { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .btn:active { transform: none; }
  .link::after { transition: none; }
}