:root {
  color-scheme: dark;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: #e9e8df;
  background: #101214;
  --page: #101214;
  --panel: #17191b;
  --paper: #e9e8df;
  --ink: #17191b;
  --muted: #8b9298;
  --signal: #ffb000;
  --danger: #ff6b4a;
  --rule: #34383b;
}

* {
  box-sizing: border-box;
}
html {
  min-width: 320px;
  scroll-behavior: smooth;
  background: var(--page);
}
body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
}
button,
select,
input,
textarea {
  font: inherit;
}
button,
select,
input,
textarea {
  border-radius: 0;
}
a {
  color: inherit;
  text-underline-offset: 0.2em;
}

.masthead,
footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 3.6rem;
  padding: 0 3vw;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.wordmark {
  color: var(--paper);
  font-weight: 750;
  text-decoration: none;
  text-transform: lowercase;
}
.masthead nav {
  display: flex;
  gap: 1.5rem;
}
.masthead nav a {
  text-decoration: none;
}
.masthead nav a:hover {
  color: var(--signal);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(18rem, 0.72fr);
  gap: clamp(3rem, 9vw, 10rem);
  align-items: end;
  padding: clamp(4rem, 9vw, 8.5rem) 3vw clamp(4rem, 8vw, 7rem);
}
.eyebrow {
  margin: 0 0 1rem;
  color: var(--signal);
  font:
    700 0.67rem/1 ui-monospace,
    monospace;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
h1,
h2,
h3 {
  margin: 0;
  font-weight: 540;
  letter-spacing: -0.05em;
}
h1 {
  font-size: clamp(3.5rem, 9vw, 9rem);
  line-height: 0.82;
}
h2 {
  font-size: clamp(2.9rem, 6vw, 6.3rem);
  line-height: 0.88;
}
h3 {
  font-size: 1.25rem;
  line-height: 1;
}
.hero-copy {
  max-width: 34rem;
  margin: 0;
  color: #b4b8ba;
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  line-height: 1.55;
}

.presets {
  padding: clamp(4rem, 8vw, 8rem) 3vw;
  border-block: 1px solid var(--rule);
}
.section-heading,
.builder-heading {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(18rem, 0.72fr);
  gap: 3rem;
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 5rem);
}
.section-heading > p {
  max-width: 34rem;
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}
.preset-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.preset-card {
  min-width: 0;
  padding: clamp(1rem, 2vw, 1.75rem);
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.preset-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font:
    0.62rem/1.3 ui-monospace,
    monospace;
  text-transform: uppercase;
}
.preset-meta p {
  margin: 0;
  color: var(--signal);
}
.preset-card h3 {
  margin: 2.5rem 0 1.25rem;
  font-size: clamp(1.6rem, 3vw, 2.8rem);
}
.sample-stage {
  display: grid;
  place-items: center;
  min-height: 9rem;
  padding: 1.5rem 0.8rem;
  background: #090a0b;
  overflow: hidden;
}
.sample-stage sfe-board {
  --sfe-board-background: transparent;
  --sfe-board-border: 0;
  --sfe-board-padding: 0;
  --sfe-board-gap: 0.16rem;
  --sfe-cell-width: clamp(1.45rem, 3.4vw, 3.2rem);
  --sfe-cell-height: clamp(2.05rem, 4.6vw, 4.4rem);
  --sfe-font-size: clamp(0.75rem, 1.8vw, 1.65rem);
}
.preset-card[data-preset="custom-words"] sfe-board {
  --sfe-cell-width: clamp(1.5rem, 2.8vw, 2.4rem);
  --sfe-value-size: 0.8em;
}
.preset-card[data-preset="custom-emoji"] sfe-board {
  --sfe-cell-width: clamp(1.4rem, 2.5vw, 2.2rem);
}
.preset-actions,
.preview-actions {
  display: flex;
  gap: 1px;
  margin-top: 1px;
  background: var(--rule);
}
.preset-actions button,
.preview-actions button,
#copy-code {
  min-height: 2.7rem;
  padding: 0.65rem 0.9rem;
  border: 0;
  background: var(--panel);
  color: var(--paper);
  cursor: pointer;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.preset-actions button:last-child {
  margin-left: auto;
}
button:hover {
  background: var(--signal) !important;
  color: var(--ink) !important;
}
button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.builder {
  padding: clamp(4rem, 8vw, 8rem) 3vw;
  background: var(--paper);
  color: var(--ink);
}
.builder .eyebrow {
  color: #7a5b00;
}
.builder-heading {
  grid-template-columns: minmax(0, 2fr) minmax(18rem, 0.72fr);
}
.status {
  margin: 0;
  padding-left: 1rem;
  border-left: 3px solid #bb8500;
  font:
    0.72rem/1.5 ui-monospace,
    monospace;
  text-transform: uppercase;
}
.status.is-error {
  border-color: #d13d22;
  color: #a42611;
}
.workbench {
  display: grid;
  grid-template-columns: minmax(18rem, 0.8fr) minmax(0, 1.55fr);
  border: 1px solid #b9b8b0;
}
.control-desk {
  padding: clamp(1.2rem, 2.5vw, 2.3rem);
  background: #d8d7cf;
  border-right: 1px solid #aaa9a2;
}
fieldset {
  display: grid;
  gap: 1.2rem;
  margin: 0;
  padding: 0 0 2.2rem;
  border: 0;
}
fieldset + fieldset {
  padding-top: 2.2rem;
  border-top: 1px solid #aaa9a2;
}
legend {
  width: 100%;
  margin-bottom: 1.5rem;
  color: #666761;
  font:
    700 0.65rem/1 ui-monospace,
    monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
label {
  display: grid;
  gap: 0.55rem;
  color: #4d4e4a;
  font:
    700 0.65rem/1.4 ui-monospace,
    monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
label span,
label output {
  justify-self: end;
  color: #777871;
  font-weight: 500;
  text-transform: none;
}
label span {
  margin-top: -1.95rem;
}
select,
input,
textarea {
  width: 100%;
  border: 1px solid #aaa9a2;
  background: #f0efe8;
  color: var(--ink);
  padding: 0.75rem;
}
textarea {
  resize: vertical;
  min-height: 8.8rem;
  font:
    0.84rem/1.6 ui-monospace,
    monospace;
}
input[type="range"] {
  height: 2.6rem;
  accent-color: #9d7000;
}
.settings-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.settings-grid legend {
  grid-column: 1 / -1;
}
.check-control {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  align-self: end;
  min-height: 2.75rem;
}
.check-control input {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: #9d7000;
}

.preview-column {
  min-width: 0;
}
.preview-panel {
  padding: clamp(1.2rem, 3vw, 2.8rem);
  background: #202225;
  color: var(--paper);
}
.panel-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}
.panel-label span {
  color: #9da2a5;
  font:
    0.62rem/1 ui-monospace,
    monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.board-stage {
  display: grid;
  place-items: center;
  min-height: 17rem;
  overflow: auto;
  background: #0b0c0d;
  padding: 2rem 1rem;
}
#builder-board {
  --sfe-board-background: transparent;
  --sfe-board-border: 0;
  --sfe-board-padding: 0;
  --sfe-board-gap: clamp(0.15rem, 0.5vw, 0.42rem);
  --sfe-cell-width: clamp(2rem, 4.4vw, 4.25rem);
  --sfe-cell-height: clamp(2.8rem, 6vw, 5.8rem);
  --sfe-font-size: clamp(1rem, 2.35vw, 2.25rem);
}
.theme-paper {
  background: #d8d7cf;
  color: var(--ink);
}
.theme-paper .board-stage {
  background: #c5c4bd;
}
.theme-paper #builder-board {
  --sfe-cell-background: #f4f2e8;
  --sfe-cell-color: #17191b;
  --sfe-cell-border: 1px solid #9a9a93;
  --sfe-split-line: rgb(0 0 0 / 0.26);
}
.theme-signal {
  background: #ffb000;
  color: #17191b;
}
.theme-signal .board-stage {
  background: #17191b;
}
.theme-signal #builder-board {
  --sfe-cell-background: #ffb000;
  --sfe-cell-color: #17191b;
  --sfe-cell-border: 1px solid #cc8d00;
  --sfe-split-line: rgb(0 0 0 / 0.4);
}
.preview-actions button:first-child {
  flex: 1;
}

.code-ticket {
  position: relative;
  padding: clamp(1.3rem, 3vw, 2.8rem);
  background: #f4f2e8;
  border-top: 1px dashed #a7a69f;
}
.code-ticket::before,
.code-ticket::after {
  content: "";
  position: absolute;
  top: -0.55rem;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--paper);
}
.code-ticket::before {
  left: -0.55rem;
}
.code-ticket::after {
  right: -0.55rem;
}
.ticket-heading {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 2rem;
  margin-bottom: 1.5rem;
}
.code-ticket h3 {
  font-size: 1.55rem;
}
#copy-code {
  background: #242628;
  white-space: nowrap;
}
pre {
  max-height: 30rem;
  margin: 0;
  padding: 1.2rem;
  overflow: auto;
  background: #242628;
  color: #f0efe8;
  font:
    0.74rem/1.55 ui-monospace,
    monospace;
  tab-size: 2;
}

footer {
  border-top: 1px solid var(--rule);
  border-bottom: 0;
}

[hidden] {
  display: none !important;
}

@media (max-width: 980px) {
  .preset-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .workbench {
    grid-template-columns: 1fr;
  }
  .control-desk {
    border-right: 0;
    border-bottom: 1px solid #aaa9a2;
  }
}

@media (max-width: 680px) {
  .masthead nav a:not(:last-child) {
    display: none;
  }
  .hero,
  .section-heading,
  .builder-heading {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .preset-grid {
    grid-template-columns: 1fr;
  }
  .settings-grid {
    grid-template-columns: 1fr;
  }
  .settings-grid legend {
    grid-column: auto;
  }
  .board-stage {
    min-height: 13rem;
  }
  .ticket-heading {
    align-items: end;
  }
  footer > span {
    display: none;
  }
}

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