:root {
  --bg: #000000;
  --text: #ffffff;
  --muted: #b7b7b7;
  --line: #222222;
  --line-soft: #1a1a1a;
  --accent: #ff8800;
  --error: #ff5f57;
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  height: 100%;
  background: #000;
}

body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", "Helvetica Neue", sans-serif;
}

a {
  color: var(--accent);
}

main {
  max-width: 940px;
  margin: 0 auto;
  padding: 1.1rem 0.9rem 2.4rem;
}

.topline {
  border: 1px solid var(--accent);
  padding: 0.5rem 0.7rem;
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

h1 {
  line-height: 1.08;
  margin: 0.55rem 0 0.55rem;
}

.lede {
  color: var(--muted);
}

.btn {
  border: 1px solid var(--accent);
  color: var(--text);
  background: transparent;
  padding: 0.58rem 0.9rem;
  text-decoration: none;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.88rem;
  cursor: pointer;
  min-height: 38px;
}

.btn.primary {
  background: var(--accent);
  color: #000;
  font-weight: 700;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

pre {
  margin: 0;
  padding: 0.8rem;
  border: 1px solid var(--line);
  overflow-x: auto;
  background: #060606;
  color: #eaeaea;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.88rem;
}

code {
  background: #0d0d0d;
  border: 1px solid #1f1f1f;
  padding: 0.08rem 0.22rem;
}

.page-home h1 {
  font-size: clamp(1.9rem, 4.2vw, 3.3rem);
  max-width: 14ch;
}

.page-home .lede {
  max-width: 55ch;
  line-height: 1.5;
  margin: 0;
}

.page-home .cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1rem 0 0;
}

.page-home .bullets {
  margin-top: 0.95rem;
}

.page-home .bullets ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
  line-height: 1.55;
}

.page-home .bullets li + li {
  margin-top: 0.22rem;
}

.page-home .section {
  margin-top: 1.1rem;
}

.page-home h2 {
  margin: 0 0 0.52rem;
  font-size: 1rem;
  color: var(--accent);
}

.page-home .history p {
  margin: 0 0 0.52rem;
  color: var(--muted);
  max-width: 66ch;
  line-height: 1.5;
}

.page-home .history ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
  line-height: 1.55;
}

.page-home .example figure {
  margin: 0;
  max-width: 100%;
  overflow: hidden;
}

.page-home .example img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--line);
  background: #050505;
  object-fit: contain;
}

.page-home .example figcaption {
  margin-top: 0.5rem;
  font-size: 0.86rem;
  color: var(--muted);
}

.page-home footer {
  margin-top: 1.3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.page-demo h1 {
  font-size: clamp(1.6rem, 3.8vw, 2.6rem);
  max-width: 18ch;
}

.page-demo .lede {
  max-width: 68ch;
}

.page-demo .meta-links {
  margin: 0.35rem 0 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.page-demo .meta-links a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-demo .panel {
  padding: 0.35rem 0;
}

.page-demo .panel-grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: 1.5fr 1fr;
}

.page-demo .subpanel {
  padding: 0.2rem 0;
}

.page-demo label {
  display: block;
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.28rem;
}

.page-demo input,
.page-demo select {
  width: 100%;
  border: 1px solid var(--line-soft);
  padding: 0.5rem 0.56rem;
  font: inherit;
  color: var(--text);
  background: #070707;
}

.page-demo #dropZone {
  border: 1px dashed #242424;
  padding: 0.44rem 0.54rem;
  margin: 0.4rem 0;
  font-family: "IBM Plex Mono", monospace;
  color: var(--muted);
}

.page-demo #dropZone.active {
  border-color: var(--accent);
  color: var(--accent);
  background: #090603;
}

.page-demo #selectedFile {
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  min-height: 1.1rem;
  font-size: 0.86rem;
}

.page-demo details {
  margin-top: 0.4rem;
  padding-top: 0.1rem;
}

.page-demo summary {
  cursor: pointer;
  color: var(--muted);
}

.page-demo .advanced-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: 0.65rem;
  margin-top: 0.6rem;
}

.page-demo .section {
  margin-top: 0.5rem;
}

.page-demo #status {
  min-height: 1.35rem;
  font-family: "IBM Plex Mono", monospace;
  margin-bottom: 0.45rem;
}

.page-demo #output {
  min-height: 72px;
  border: 1px solid #171717;
  padding: 0.55rem;
  background: #040404;
}

.page-demo .action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.page-demo .action-buttons .btn {
  flex: 1 1 180px;
}

@media (max-width: 820px) {
  .page-demo .panel-grid {
    grid-template-columns: 1fr;
  }
}