:root {
  color-scheme: dark;
  --bg: #0b0d11;
  --surface: #131722;
  --line: #293043;
  --ink: #f2f4f8;
  --muted: #929aad;
  --lime: #c7ff5e;
  --lime-dark: #88b93b;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background:
    radial-gradient(ellipse 90% 70% at 80% -10%, #28321b55, transparent 58%),
    var(--bg);
  color: var(--ink);
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
  min-height: 100vh;
}
.shell {
  max-width: 850px;
  margin: auto;
  padding: 72px 24px 42px;
}
header {
  margin-bottom: 42px;
}
.eyebrow,
.label {
  font:
    500 11px ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
  letter-spacing: 0.13em;
  color: var(--lime);
  margin: 0 0 10px;
}
h1 {
  font-size: clamp(38px, 7vw, 64px);
  letter-spacing: -0.065em;
  line-height: 1;
  margin: 0;
}
h1 span {
  color: var(--lime);
}
.intro {
  color: var(--muted);
  max-width: 570px;
  line-height: 1.75;
  font-size: 15px;
  margin: 19px 0 0;
}
nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}
.tab {
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  font: 600 13px system-ui;
  padding: 13px 14px;
  cursor: pointer;
}
.tab.active {
  color: var(--ink);
  border-color: var(--lime);
}
.panel {
  display: none;
  background: linear-gradient(135deg, #171c29, #11151e);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 20px 60px #0003;
}
.panel.active {
  display: block;
}
.panel-title {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 26px;
}
.panel-title .label {
  margin-bottom: 6px;
}
.panel-title h2 {
  font-size: 20px;
  letter-spacing: -0.035em;
  margin: 0;
}
.badge {
  font:
    500 10px ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
  color: var(--lime);
  border: 1px solid #a0d44866;
  border-radius: 99px;
  padding: 6px 8px;
}
.options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}
.options.three {
  grid-template-columns: repeat(3, 1fr);
}
label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0c1018;
  color: var(--ink);
  padding: 11px 12px;
  font:
    13px ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
  outline: none;
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--lime-dark);
}
.wide {
  margin-bottom: 16px;
}
.generate {
  width: 100%;
  border: 0;
  border-radius: 8px;
  background: var(--lime);
  color: #142000;
  padding: 13px 16px;
  font: 800 13px system-ui;
  cursor: pointer;
}
.generate:hover {
  background: #d6ff8c;
}
.generate:disabled {
  opacity: 0.5;
}
.generate b {
  font-size: 17px;
  margin-left: 7px;
}
.result {
  display: flex;
  gap: 10px;
  align-items: start;
  background: #090c12;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-top: 16px;
  padding: 12px;
}
.result code {
  word-break: break-all;
  line-height: 1.65;
  flex: 1;
  font:
    12px ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
  color: #d9e4c7;
}
.copy {
  flex: 0 0 auto;
  background: #242b3c;
  color: #eef1f8;
  border: 0;
  border-radius: 6px;
  padding: 7px 9px;
  font: 700 11px system-ui;
  cursor: pointer;
}
.hint {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
  margin: 13px 0 0;
}
footer {
  text-align: center;
  color: #687184;
  font:
    11px ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
  margin-top: 27px;
}
#toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translate(-50%, 20px);
  opacity: 0;
  background: #eaf5d6;
  color: #19240b;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  transition: 0.2s;
}
#toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}
@media (max-width: 600px) {
  .shell {
    padding-top: 42px;
  }
  .options,
  .options.three {
    grid-template-columns: 1fr;
  }
  .panel {
    padding: 20px;
  }
  nav {
    gap: 0;
  }
  .tab {
    padding: 12px 10px;
    font-size: 11px;
  }
}