:root {
  color-scheme: light;
  --bg: #f2f4f7;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #4b5563;
  --border: #d7dce3;
  --primary: #570df8;
  --primary-hover: #4506cb;
  --error: #f87272;
  --error-bg: #fff0f0;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--primary-hover);
}

.container {
  width: min(100%, 1280px);
  margin: 0 auto;
  padding: 2rem 1rem;
}

.site-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  text-align: center;
}

.site-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 500;
}

.site-nav,
.footer-nav,
.network-footer__links {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
}

.site-nav a {
  font-size: 1.5rem;
  font-weight: 500;
}

main {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2.5rem 1rem;
}

.tool {
  width: 100%;
  max-width: 56rem;
  border-radius: .75rem;
  padding: 1.5rem;
}

.tool h1 {
  margin: 0;
  font-size: 1.5rem;
  line-height: 2rem;
  font-weight: 600;
}

.lede {
  margin: .25rem 0 0;
  color: var(--text);
  font-size: .875rem;
}

.stack {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

label {
  display: block;
  margin-bottom: .5rem;
  color: var(--text);
  font-size: .875rem;
  font-weight: 500;
}

textarea,
input[type="text"],
input[type="file"] {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: .5rem;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

textarea,
input[type="text"] {
  padding: .75rem 1rem;
}

input[type="file"] {
  min-height: 3rem;
  padding: .65rem .85rem;
}

textarea {
  min-height: 12rem;
  resize: vertical;
}

.textarea-short {
  min-height: 8rem;
}

.textarea-tiny {
  min-height: 6rem;
  font-size: .75rem;
}

.readonly {
  background: var(--bg);
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: .875rem;
}

.field-row {
  display: flex;
  gap: .5rem;
}

.field-row input {
  flex: 1;
  min-width: 0;
}

.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1rem;
}

button {
  min-height: 3rem;
  border: 1px solid transparent;
  border-radius: .5rem;
  padding: .75rem 1rem;
  background: var(--primary);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover:not(:disabled) {
  background: var(--primary-hover);
}

button:disabled {
  opacity: .45;
  cursor: not-allowed;
}

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

button.secondary:hover:not(:disabled) {
  background: #e5e7eb;
}

.meta {
  color: var(--text);
  font-size: .875rem;
}

.hidden {
  display: none !important;
}

.alert {
  border-radius: .5rem;
  padding: 1rem;
  background: var(--error-bg);
  color: #7f1d1d;
  border: 1px solid var(--error);
}

.input-error,
.textarea-error {
  border-color: var(--error);
}

.preview-box {
  display: flex;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: .5rem;
  padding: 1rem;
  background: var(--surface);
}

.preview-box img {
  max-width: 100%;
  max-height: 24rem;
  border-radius: .25rem;
}

.info {
  display: grid;
  gap: .5rem;
  color: var(--text);
  font-size: .875rem;
}

hr {
  margin: 1.5rem 0;
  border: 0;
  border-top: 1px solid #e2e8f0;
}

article {
  display: grid;
  gap: 1rem;
  color: var(--text);
  font-size: .875rem;
}

article h2 {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.75rem;
}

article p {
  margin: 0;
}

code {
  border-radius: .25rem;
  background: #e5e7eb;
  padding: .1rem .25rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.link-section {
  margin-top: 2rem;
  text-align: center;
}

.link-section strong {
  display: block;
}

.site-footer,
.network-footer {
  margin-top: 2rem;
  text-align: center;
  font-size: .875rem;
  opacity: .6;
}

.network-footer {
  display: grid;
  gap: .85rem;
}

.network-footer__links a {
  color: var(--primary);
}

.network-footer__copyright {
  color: var(--muted);
}

@media (max-width: 640px) {
  .container {
    padding-inline: .75rem;
  }

  .site-nav a {
    font-size: 1rem;
  }

  main {
    padding: 2rem 0;
  }

  .tool {
    padding: 1rem 0;
  }

  .field-row {
    flex-direction: column;
  }
}