:root {
  color-scheme: dark;
  --bg: #101820;
  --panel: #17212b;
  --panel-2: #1d2a34;
  --text: #f4f7fb;
  --muted: #a7b3bf;
  --line: #2d3b47;
  --accent: #5ee0b7;
  --accent-2: #7db6ff;
  --button: #f4f7fb;
  --button-text: #0e151c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 10% 0%, rgba(94, 224, 183, 0.16), transparent 30rem),
    linear-gradient(180deg, #101820 0%, #121922 46%, #0f151b 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 22px 0;
}

.brand,
.nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 700;
}

.brand-icon {
  width: 34px;
  height: 34px;
  display: block;
}

.nav {
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover {
  color: var(--text);
}

.language-switch {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}

.language-switch button {
  min-width: 42px;
  min-height: 32px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
}

.language-switch button.active {
  background: var(--button);
  color: var(--button-text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.86fr);
  gap: 44px;
  width: min(1120px, calc(100vw - 32px));
  margin: 46px auto 0;
  min-height: calc(100vh - 168px);
  align-items: center;
}

.hero-copy {
  max-width: 700px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  max-width: 760px;
  font-size: clamp(46px, 8vw, 84px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.lede {
  max-width: 660px;
  color: var(--muted);
  font-size: 19px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 700;
  white-space: nowrap;
}

.button.primary {
  border-color: var(--button);
  background: var(--button);
  color: var(--button-text);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.terminal,
.code-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(12, 18, 24, 0.78);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  gap: 8px;
  padding: 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.terminal-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-2);
}

.terminal-bar span:first-child {
  background: #ff7f7f;
}

.terminal-bar span:nth-child(2) {
  background: #ffd36b;
}

pre {
  margin: 0;
  overflow-x: auto;
  padding: 22px;
  color: #d7f8ed;
  font: 14px/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.section {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 92px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

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

.feature-grid article {
  min-height: 204px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  padding: 22px;
}

.feature-grid p,
.split p,
.guide p,
.download p,
.converter-section p,
.footer {
  color: var(--muted);
}

.split,
.download {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.8fr);
  gap: 30px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.download {
  grid-template-columns: minmax(0, 1fr) auto;
  border-bottom: 1px solid var(--line);
}

code {
  color: #d7f8ed;
  font: 0.95em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.guide {
  border-top: 1px solid var(--line);
}

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

.steps article,
.guide-notes > div,
.converter-pane {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(23, 33, 43, 0.96), rgba(20, 28, 36, 0.96));
}

.steps article {
  display: flex;
  flex-direction: column;
  min-height: 300px;
  padding: 20px;
}

.steps pre {
  margin-top: auto;
  padding: 16px;
  border: 1px solid rgba(125, 182, 255, 0.18);
  border-radius: 6px;
  background: rgba(10, 14, 18, 0.55);
  font-size: 12px;
}

.step-index {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  margin-bottom: 16px;
  border: 1px solid rgba(94, 224, 183, 0.5);
  border-radius: 50%;
  color: var(--accent);
  font-weight: 800;
}

.guide-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.guide-notes > div {
  padding: 22px;
}

.converter-section {
  border-top: 1px solid var(--line);
}

.converter {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 18px;
}

.generator {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 18px;
  margin-bottom: 82px;
}

.converter-pane,
.generator-form,
.generator-output {
  min-width: 0;
  padding: 20px;
}

.generator-form,
.generator-output {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(23, 33, 43, 0.96), rgba(20, 28, 36, 0.96));
}

.field-row {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

label,
.textarea-label,
.output-heading {
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0c1218;
  color: var(--text);
  font: inherit;
}

input,
select {
  min-height: 42px;
  padding: 0 12px;
}

textarea {
  min-height: 360px;
  margin-top: 8px;
  padding: 14px;
  resize: vertical;
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.converter-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.converter-actions.compact {
  margin-top: 0;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tab {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  padding: 0 12px;
}

.tab.active {
  border-color: rgba(94, 224, 183, 0.65);
  color: var(--text);
}

.output-pane {
  min-width: 0;
}

.output-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.converter-output {
  min-height: 440px;
  border: 1px solid rgba(125, 182, 255, 0.18);
  border-radius: 6px;
  background: #0a0f14;
  white-space: pre;
}

.converter-status {
  min-height: 22px;
  margin: 12px 0 0;
  font-size: 13px;
}

.converter-status.error {
  color: #ffb5b5;
}

.converter-status.ok {
  color: var(--accent);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 44px;
  font-size: 14px;
}

@media (max-width: 900px) {
  .topbar {
    align-items: flex-start;
    gap: 18px;
    flex-direction: column;
  }

  .nav {
    flex-wrap: wrap;
    gap: 14px;
  }

  .language-switch {
    align-self: flex-start;
  }

  .hero,
  .split,
  .download {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    margin-top: 28px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps,
  .guide-notes,
  .converter,
  .generator {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: 42px;
  }

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

  .field-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .output-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer {
    flex-direction: column;
  }
}