/* joelscharenberg.com
   Design system: neutral palette, gold accent, Newsreader + Public Sans,
   Swiss Modernism grid. See design-system/joelscharenberg/MASTER.md. */

:root {
  --color-primary: #18181B;
  --color-on-primary: #FFFFFF;
  --color-secondary: #3F3F46;
  --color-on-secondary: #FFFFFF;
  --color-accent: #A16207;
  --color-on-accent: #FFFFFF;
  --color-background: #FAFAFA;
  --color-foreground: #09090B;
  --color-card: #FFFFFF;
  --color-card-foreground: #09090B;
  --color-muted: #E8ECF0;
  --color-muted-foreground: #475569;
  --color-border: #E4E4E7;
  --color-ring: #18181B;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  --font-heading: 'Newsreader', Georgia, serif;
  --font-body: 'Public Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius: 8px;
  --content-measure: 65ch;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-foreground);
  margin: 0 0 var(--space-md);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }

p {
  margin: 0 0 var(--space-md);
  color: var(--color-secondary);
}

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  cursor: pointer;
}

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

@media (prefers-reduced-motion: no-preference) {
  a,
  .section-card,
  .tool-link {
    transition: color 200ms ease, box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
  }
}

a:focus-visible,
.section-card:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
}

img {
  max-width: 100%;
}

.container {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

/* Site header, shared by every page */

.site-header {
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-md);
}

.site-header .header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-foreground);
  text-decoration: none;
}

.site-name:hover {
  color: var(--color-accent);
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: var(--space-lg);
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding-block: var(--space-xs);
  border-bottom: 2px solid transparent;
}

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

.site-nav a[aria-current="page"] {
  color: var(--color-foreground);
  border-bottom-color: var(--color-accent);
}

/* Home page */

.home-header .site-name[aria-current="page"] {
  color: var(--color-foreground);
}

.hero {
  padding-block: var(--space-3xl) var(--space-2xl);
}

.hero h1 {
  font-size: 2.75rem;
  margin-bottom: var(--space-sm);
}

.hero .tagline {
  font-size: 1.15rem;
  max-width: var(--content-measure);
}

.sections-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  padding-block-end: var(--space-3xl);
}

@media (min-width: 640px) {
  .sections-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.section-card {
  display: block;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.section-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.section-card h2 {
  color: var(--color-foreground);
  margin-bottom: var(--space-sm);
}

.section-card p {
  margin: 0;
}

/* Interior pages */

.page-main {
  padding-block: var(--space-2xl) var(--space-3xl);
  margin-inline: auto;
}

.page-main > p,
.page-main > section > p {
  max-width: var(--content-measure);
}

.page-main ul {
  margin: 0 0 var(--space-md);
  padding-left: 1.25em;
  color: var(--color-secondary);
}

.page-main li {
  margin-bottom: var(--space-xs);
}

.page-main li:last-child {
  margin-bottom: 0;
}

.tool-block {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  margin-block-end: var(--space-xl);
}

.tool-block h2 {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.tool-version {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted-foreground);
  background: var(--color-muted);
  border-radius: 999px;
  padding: 0.15rem 0.65rem;
}

.built-with {
  margin-top: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-muted-foreground);
}

.tool-block > .built-with:last-child {
  margin-bottom: 0;
}

.tool-downloads {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.prompt-reader {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.prompt-reader summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-accent);
}

.prompt-reader summary:hover {
  color: var(--color-primary);
}

.prompt-reader summary:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
}

.prompt-frame {
  display: block;
  width: 100%;
  height: 480px;
  margin-top: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
}

.tool-link {
  display: inline-block;
  font-weight: 600;
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  text-decoration: none;
}

.tool-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.together-note {
  font-size: 1.05rem;
  max-width: var(--content-measure);
}

.usage-note {
  background: var(--color-muted);
  border-radius: var(--radius);
  padding: var(--space-xl);
  max-width: var(--content-measure);
}

.usage-note p:last-child {
  margin-bottom: 0;
}

.about-intro {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.about-intro > div {
  max-width: var(--content-measure);
}

@media (min-width: 640px) {
  .about-intro {
    flex-direction: row;
    align-items: flex-start;
  }

  .about-intro > div {
    flex: 1;
    order: 1;
  }

  .about-photo {
    order: 2;
  }
}

.about-photo {
  width: 100%;
  max-width: 240px;
  height: auto;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.contact-placeholder {
  background: var(--color-muted);
  border-radius: var(--radius);
  padding: var(--space-lg);
  display: inline-block;
}

.contact-placeholder .label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted-foreground);
  margin-bottom: var(--space-xs);
}

@media (min-width: 768px) {
  .hero h1 { font-size: 3.25rem; }
  h1 { font-size: 2.25rem; }
}

@media (min-width: 1024px) {
  .hero { padding-block: var(--space-3xl) var(--space-3xl); }
}

@media (min-width: 1440px) {
  .container { max-width: 1200px; }
}