@font-face {
  font-family: "Mona Sans";
  src: url("fonts/MonaSans-Regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

@font-face {
  font-family: "Mona Sans Display";
  src: url("fonts/MonaSansDisplay-Bold.woff2") format("woff2");
  font-style: normal;
  font-weight: 700 900;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --page: #0d1015;
  --panel: #151922;
  --panel-strong: #1b202a;
  --line: #303744;
  --line-bright: #4a5565;
  --text: #f2f5f7;
  --muted: #aab3bf;
  --dim: #7e8997;
  --focus: #8cc8ff;
  --max-width: 1540px;
  font-family: "Mona Sans", "Helvetica Neue", sans-serif;
  background: var(--page);
  color: var(--text);
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--page);
}

button, input, select { font: inherit; }

a { color: inherit; }

button, a, input, select { -webkit-tap-highlight-color: transparent; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 28px;
  border-bottom: 1px solid color-mix(in srgb, var(--line), transparent 22%);
  background: color-mix(in srgb, var(--page), transparent 8%);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-weight: 760;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.site-header nav { display: flex; gap: 26px; }
.site-header nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.site-header nav a:hover { color: var(--text); }

main, footer {
  width: min(100% - 48px, var(--max-width));
  margin-inline: auto;
}

.intro {
  display: grid;
  grid-template-columns: clamp(104px, 10vw, 148px) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  min-height: 360px;
  padding: 72px 0 54px;
}

.intro-logo {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.intro h1 {
  max-width: 760px;
  font-family: "Mona Sans Display", "Mona Sans", sans-serif;
  margin: 0 0 22px;
  font-size: clamp(54px, 7vw, 96px);
  line-height: 0.92;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.intro-copy > p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.55;
}

.control-bus {
  display: grid;
  grid-template-columns: minmax(570px, auto) minmax(240px, 1fr) 170px;
  gap: 1px;
  border: 1px solid var(--line-bright);
  background: var(--line-bright);
}

.control-bus > * {
  min-width: 0;
  background: var(--panel);
}

.control-label {
  display: block;
  margin-bottom: 10px;
  color: var(--dim);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.target-control { padding: 13px 14px 14px; }
.target-button {
  min-width: 92px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-right-width: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
}
.target-button:last-child { border-right-width: 1px; }
.target-button:hover { color: var(--text); background: var(--panel-strong); }
.target-button.is-active { color: #101318; background: #e9eff5; border-color: #e9eff5; }

.search-control, .appearance-control { padding: 13px 16px 14px; }
.search-control input, .appearance-control select {
  width: 100%;
  height: 38px;
  border: 0;
  border-bottom: 1px solid var(--line-bright);
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
}
.search-control input::placeholder { color: var(--dim); }
.appearance-control select { cursor: pointer; }

.gallery-status {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: baseline;
  padding: 24px 2px 16px;
  color: var(--muted);
  font-size: 13px;
}
.gallery-status p { margin: 0; }
.target-note { text-align: right; }
.target-note code { color: var(--text); }

.theme-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.theme-card {
  min-width: 0;
  border: 1px solid var(--card-border);
  border-radius: 14px;
  overflow: clip;
  background: var(--card-bg);
  color: var(--card-fg);
  contain: layout paint;
}

.theme-card[hidden] { display: none; }

.theme-card-button {
  display: block;
  width: 100%;
  min-height: 286px;
  padding: 18px;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.theme-card-button:hover .interface-specimen,
.theme-card-button:focus-visible .interface-specimen {
  transform: translateY(-2px);
}

.theme-card.is-selected {
  outline: 3px solid var(--card-ring);
  outline-offset: 3px;
}

.theme-card-heading {
  display: flex;
  min-height: 52px;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.theme-card h2 {
  margin: 0;
  font-size: 17px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.theme-meta {
  margin: 7px 0 0;
  color: var(--card-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.interface-specimen {
  display: grid;
  grid-template-columns: 42px 1fr;
  min-height: 132px;
  margin-top: 16px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: var(--card-raised);
  transition: background-color 180ms ease-out, border-color 180ms ease-out, transform 180ms ease-out;
}

.specimen-rail { background: var(--card-control); border-right: 1px solid var(--card-border); }
.specimen-main { padding: 17px 15px; }
.specimen-title, .specimen-copy { display: block; border-radius: 2px; }
.specimen-title { width: 52%; height: 8px; background: var(--card-fg); }
.specimen-copy { width: 78%; height: 6px; margin-top: 11px; background: var(--card-muted); }
.specimen-command {
  display: grid;
  gap: 6px;
  margin-top: 20px;
  padding: 11px;
  background: var(--card-control);
}
.specimen-command i { display: block; height: 4px; background: var(--card-muted); opacity: 0.78; }
.specimen-command i:nth-child(1) { width: 82%; }
.specimen-command i:nth-child(2) { width: 64%; }
.specimen-command i:nth-child(3) { width: 72%; background: var(--card-accent); opacity: 1; }

.palette-strip { display: grid; grid-template-columns: repeat(8, 1fr); height: 24px; margin-top: 16px; overflow: hidden; border-radius: 6px; }
.palette-strip span { min-width: 0; }

.selection-panel {
  position: sticky;
  z-index: 10;
  bottom: 18px;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: center;
  width: min(920px, calc(100% - 28px));
  margin: 28px auto 0;
  padding: 18px 20px;
  border: 1px solid var(--line-bright);
  border-radius: 14px;
  background: #171c24;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.42);
}
.selection-panel[hidden] { display: none; }
.selection-target { margin: 0 0 5px; color: var(--focus); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; text-transform: uppercase; }
.selection-panel h2 { margin: 0; font-size: 22px; }
.selection-panel #selection-description { margin: 6px 0 0; color: var(--muted); font-size: 13px; }
.selection-actions { display: flex; gap: 10px; flex: none; }
.selection-actions [hidden] { display: none; }

.download-link, .copy-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  border: 1px solid #dce7f1;
  border-radius: 8px;
  background: #eaf1f7;
  color: #101318;
  cursor: pointer;
  font-weight: 750;
  text-decoration: none;
}
.copy-button:hover, .download-link:hover { background: #ffffff; }

.agent-install {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(520px, 1.2fr);
  gap: clamp(40px, 8vw, 120px);
  align-items: center;
  margin: 0 0 72px;
  padding: 56px 0;
  border-top: 1px solid var(--line-bright);
  border-bottom: 1px solid var(--line-bright);
}
.agent-install h2, .method h2 { margin: 0; font-family: "Mona Sans Display", "Mona Sans", sans-serif; font-size: clamp(34px, 4vw, 58px); line-height: 1; letter-spacing: -0.035em; }
.agent-install > div > p { max-width: 58ch; margin: 24px 0 0; color: var(--muted); line-height: 1.65; }
.prompt-console { overflow: hidden; border: 1px solid var(--line-bright); background: #090c10; }
.prompt-console-bar { display: flex; align-items: center; justify-content: space-between; min-height: 43px; padding: 0 10px 0 15px; border-bottom: 1px solid var(--line); color: var(--dim); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.copy-button--quiet { min-height: 30px; border-color: var(--line); background: var(--panel-strong); color: var(--text); font-size: 12px; }
.copy-button--quiet:hover { background: #282f3b; }
.prompt-console pre { max-height: 330px; margin: 0; padding: 24px; overflow: auto; white-space: pre-wrap; color: #cad7e3; font: 13px/1.7 ui-monospace, SFMono-Regular, Menlo, monospace; }

.method {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(40px, 8vw, 120px);
  align-items: start;
  padding: 96px 0;
}
.method h2 { max-width: 720px; }
.method p {
  max-width: 62ch;
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

footer { display: flex; justify-content: space-between; gap: 24px; padding: 28px 0 48px; border-top: 1px solid var(--line); color: var(--dim); font-size: 13px; }
footer p { margin: 0; }
footer a { color: var(--muted); }

.empty-state { grid-column: 1 / -1; padding: 70px 24px; border-top: 1px solid var(--line-bright); border-bottom: 1px solid var(--line-bright); color: var(--muted); text-align: center; }

@media (max-width: 1180px) {
  .theme-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .control-bus { grid-template-columns: 1fr 1fr; }
  .target-control { grid-column: 1 / -1; }
}

@media (max-width: 850px) {
  main, footer { width: min(100% - 28px, var(--max-width)); }
  .site-header { padding-inline: 16px; }
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: 12px; }
  .site-header nav a[href="#themes"] { display: none; }
  .intro { padding-top: 60px; }
  .theme-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .agent-install, .method { grid-template-columns: 1fr; }
}

@media (max-width: 590px) {
  html { scroll-behavior: auto; }
  .intro { grid-template-columns: 70px minmax(0, 1fr); gap: 18px; padding: 42px 0 34px; }
  .intro h1 { margin-bottom: 16px; font-size: clamp(43px, 13.5vw, 58px); }
  .intro-copy > p { font-size: 16px; line-height: 1.5; }
  .control-bus { grid-template-columns: minmax(0, 1fr) 122px; }
  .target-control { display: grid; grid-column: 1 / -1; grid-template-columns: repeat(6, 1fr); }
  .target-control .control-label { grid-column: 1 / -1; }
  .target-button { grid-column: span 2; min-width: 0; width: auto; padding-inline: 6px; border-right-width: 1px; }
  .target-button:nth-of-type(4), .target-button:nth-of-type(5) { grid-column: span 3; }
  .search-control { min-width: 0; }
  .appearance-control { min-width: 0; padding-inline: 12px; }
  .gallery-status { display: block; }
  .target-note { margin-top: 8px !important; text-align: left; }
  .theme-gallery { grid-template-columns: 1fr; }
  .theme-card-button { min-height: 270px; }
  .selection-panel {
    position: fixed;
    right: 14px;
    bottom: 10px;
    left: 14px;
    display: block;
    width: auto;
    max-height: calc(100vh - 84px);
    margin: 0;
    padding: 14px;
    overflow: auto;
  }
  .selection-panel #selection-description { display: none; }
  .selection-panel h2 { font-size: 19px; }
  .selection-actions { margin-top: 12px; }
  .selection-actions > * { flex: 1; }
  .agent-install { margin-bottom: 48px; padding-block: 44px; }
  .prompt-console pre { font-size: 12px; }
  footer { display: block; }
  footer a { display: inline-block; margin-top: 12px; }
}

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