:root {
  --color-border: darkgray;
  --color-focus: #0056b3;
  --color-text: #222;
  --color-bg: #fff;
  --spacing-section: 1rem;
  --spacing-list-indent: 1rem;
  --font-family-base: sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;
  --max-width-body: 85%;
  --border-radius-sm: 0.3rem;
}

body {
  margin: 5% auto;
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  max-width: var(--max-width-body);
  color: var(--color-text);
  background: var(--color-bg);
}

summary {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 0.2rem 0.5rem;
  width: fit-content;
  cursor: pointer;
}

summary:hover {
  background: #f0f0f0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: 0.5rem 1rem;
  background: var(--color-focus);
  color: #fff;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.section-border-bottom {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--spacing-section);
}

.section-border-top {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-section);
}

.unstyled-list {
  list-style-type: none;
  padding: 0;
}

.skills-list {
  padding: 0 var(--spacing-list-indent) 0;
}

.nested-details {
  margin: 0.5rem 0 0.5rem 1rem;
}

.nested-details summary {
  font-weight: normal;
}

#projects .unstyled-list li {
  margin: 0.5rem 0;
}

.oss-list li {
  margin: 0.4rem 0;
}

/* Components used on /refer/ and /recommend/ */

.cta-grid {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
}

.cta-card {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 1rem;
}

.cta-card h3 {
  margin-top: 0;
}

.form-field {
  display: block;
  margin: 0.75rem 0;
}

.form-field label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  max-width: 40rem;
  padding: 0.4rem 0.5rem;
  font: inherit;
  color: inherit;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  box-sizing: border-box;
}

.form-field textarea {
  resize: vertical;
  min-height: 4rem;
}

.form-field .hint {
  font-size: 0.95rem;
  color: #555;
  margin: 0.1rem 0 0.4rem;
  max-width: 40rem;
}

fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  margin: 1rem 0;
  padding: 0.75rem 1rem 1rem;
}

fieldset legend {
  padding: 0 0.4rem;
  font-weight: 600;
}

.length-warning {
  color: #8a4b00;
}

.preview {
  background: #f7f7f7;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 0.95rem;
  margin: 0.5rem 0 0;
}

.button {
  display: inline-block;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  text-decoration: none;
  cursor: pointer;
  font: inherit;
}

.button:hover {
  background: #f0f0f0;
}

.toast {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 1rem;
  background: var(--color-text);
  color: var(--color-bg);
  border-radius: var(--border-radius-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.toast.is-visible {
  opacity: 1;
}

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

.recommendation {
  margin: 1rem 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background: #f7f7f7;
}

.recommendation blockquote {
  margin: 0 0 0.5rem;
  padding: 0;
}

.recommendation blockquote p {
  margin: 0 0 0.75rem;
}

.recommendation blockquote p:last-child {
  margin-bottom: 0;
}

.recommendation figcaption {
  font-size: 0.95rem;
  color: var(--color-text);
  margin-top: 0.5rem;
}

.button + .button {
  margin-left: 0.5rem;
}