styles.css

:root {
  color-scheme: light;
  --ink: #271942;
  --purple: #6c3ce9;
  --pink: #f13f85;
  --orange: #ff8a36;
  --mint: #2cc7a0;
  --blue: #1677e8;
  --paper: #ffffff;
  --sky: #eef6ff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
  border-radius: 0 !important;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--sky);
}

button,
input,
textarea {
  font: inherit;
}

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

.page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 38px 0 54px;
}

.hero {
  margin-bottom: 22px;
}

.hero h1 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(2.3rem, 6vw, 4.2rem);
  letter-spacing: -.07em;
  line-height: .92;
  text-shadow: 3px 3px 0 rgba(255, 138, 54, .2), 6px 6px 0 rgba(108, 60, 233, .11);
}

.celtic-border {
  width: min(440px, 86vw);
  height: 24px;
  margin-top: 13px;
  overflow: hidden;
  opacity: .28;
}

.celtic-border svg {
  display: block;
  width: 100%;
  height: 100%;
}

.celtic-border path {
  fill: none;
  stroke: var(--blue);
  stroke-width: 2;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

.celtic-border .heather {
  stroke: #7650a8;
}

.code-panel,
.prompt-card,
.preview-shell {
  border: 2px solid var(--blue);
  background: var(--paper);
}

summary {
  padding: 12px 14px;
  color: #124f9d;
  font-weight: 850;
  cursor: pointer;
  list-style-position: inside;
}

textarea:focus {
  border-color: var(--pink);
  box-shadow: 4px 4px 0 #ffd2e4;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 5fr) minmax(420px, 7fr);
  gap: 24px;
  align-items: start;
}

.prompt-card {
  overflow: hidden;
}

.example-hint {
  margin: 0;
  padding: 14px 18px 0;
  color: #526677;
  font-size: .91rem;
  line-height: 1.4;
}

textarea {
  display: block;
  width: 100%;
  min-height: 210px;
  resize: vertical;
  border: 0;
  border-bottom: 1px solid #c9d9ef;
  padding: 18px;
  color: var(--ink);
  background: var(--paper);
  font-size: 1.05rem;
  line-height: 1.55;
  outline: none;
}

.chips {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 12px;
}

.chips button,
.downloads a,
.downloads button {
  border: 1px solid var(--blue);
  padding: 9px 12px;
  color: #124f9d;
  background: #dcecff;
  font-weight: 760;
  cursor: pointer;
}

.chips button:hover,
.downloads a:hover,
.downloads button:hover {
  color: #fff;
  background: var(--purple);
}

#build {
  width: 100%;
  min-height: 50px;
  border: 0;
  padding: 12px;
  color: #fff;
  background: var(--blue);
  box-shadow: inset 0 -5px 0 var(--pink);
  font-weight: 900;
  cursor: pointer;
}

#build:hover {
  background: #0d62c6;
}

#build:disabled {
  cursor: default;
  opacity: .58;
}

#status {
  min-height: 24px;
  margin: 0;
  padding: 8px 12px;
  color: #705d86;
  font-size: .84rem;
  font-weight: 750;
}

#status.error {
  color: #a92158;
}

.preview-shell {
  min-height: 475px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-width: 5px;
  border-color: var(--orange) var(--pink) var(--mint) var(--blue);
}

.preview-shell > svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 560px;
}

.preview-error {
  max-width: 420px;
  padding: 26px;
  color: #a92158;
  font-weight: 800;
  text-align: center;
}

.code-panel {
  margin-top: 12px;
}

.code-panel pre {
  max-height: 380px;
  margin: 0;
  overflow: auto;
  border-top: 1px solid #c9d9ef;
  padding: 16px;
  color: #30223f;
  background: #f8fbff;
  font: .78rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace;
  white-space: pre-wrap;
}

.downloads {
  display: flex;
  gap: 10px;
  justify-content: flex-start;
  margin-top: 26px;
}

.downloads a {
  text-decoration: none;
}

.downloads a.is-disabled {
  pointer-events: none;
  opacity: .45;
}

.downloads button:disabled {
  cursor: default;
  opacity: .58;
}

.site-footer {
  margin-top: 28px;
  border-left: 3px solid var(--blue);
  padding: 4px 0 4px 14px;
  color: #705d86;
  font-size: .96rem;
  line-height: 1.5;
}

.site-footer p {
  margin: 0 0 5px;
}

.site-footer p:last-child {
  margin-bottom: 0;
}

.site-footer a {
  color: #124f9d;
  font-weight: 800;
}

.site-footer a:hover {
  color: var(--purple);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 780px) {
  .page {
    width: min(100% - 22px, 620px);
    padding-top: 26px;
  }

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

  .preview-shell {
    min-height: 370px;
  }
}