:root {
  --primary: #2d848a;
  --primary-dark: #1f6368;
  --primary-light: #c2e7da;
  --accent: #ee6352;
  --indigo: #1a1b41;
  --mauve: #9a879d;
  --text: #1a1b41;
  --muted: #6e5f73;
  --border: #dbe9e3;
  --bg: #ffffff;
  --bg-alt: #f4faf7;
  --code-bg: #e9f4ef;
  --nonce-bg: #e8e8ec;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--bg);
  color: var(--text);
  font:
    17px/1.7 system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
}

.container {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Top navbar */
.site-header {
  background: var(--indigo);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .container {
  max-width: 72rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}
.brand {
  font-weight: 700;
  color: var(--primary-light);
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand:hover {
  color: #fff;
}
nav {
  display: flex;
  gap: 1.1rem;
  font-size: 0.9rem;
  white-space: nowrap;
}
nav a {
  color: var(--mauve);
  text-decoration: none;
  padding: 0.15rem 0;
  border-bottom: 2px solid transparent;
}
nav a:hover {
  color: #fff;
  border-bottom-color: var(--primary-light);
}
nav a.active {
  color: #fff;
  font-weight: 600;
  border-bottom-color: var(--accent);
}

/* Hamburger (hidden on wide screens; checkbox-driven, no JS) */
.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.nav-burger {
  display: none;
  cursor: pointer;
  padding: 0.5rem;
  margin-right: -0.5rem;
}
.nav-burger span,
.nav-burger span::before,
.nav-burger span::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary-light);
  border-radius: 1px;
  transition:
    transform 0.2s,
    background 0.2s;
}
.nav-burger span {
  position: relative;
}
.nav-burger span::before,
.nav-burger span::after {
  content: '';
  position: absolute;
  left: 0;
}
.nav-burger span::before {
  top: -7px;
}
.nav-burger span::after {
  top: 7px;
}
.nav-toggle:focus-visible + .nav-burger {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}
.nav-toggle:checked + .nav-burger span {
  background: transparent;
}
.nav-toggle:checked + .nav-burger span::before {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle:checked + .nav-burger span::after {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 52rem) {
  .site-header .container {
    flex-wrap: wrap;
  }
  .nav-burger {
    display: block;
    margin-left: auto;
  }
  nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0;
    padding-bottom: 0.5rem;
  }
  .nav-toggle:checked ~ nav {
    display: flex;
  }
  nav a {
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(154, 135, 157, 0.25);
  }
  nav a.active {
    border-bottom-color: var(--accent);
  }
}

/* Body */
main.container {
  padding-top: 0;
  padding-bottom: 4rem;
  margin-bottom: 4rem;
  min-height: 60vh;
}
h1,
h2 {
  line-height: 1.25;
  letter-spacing: -0.02em;
}
h1 {
  font-size: 2rem;
  margin: 0 0 1rem;
}
h2 {
  font-size: 1.3rem;
  margin: 2.25rem 0 0.5rem;
}
a {
  color: var(--primary);
}
a:hover {
  color: var(--primary-dark);
}
ul {
  padding-left: 1.25rem;
}
li {
  margin: 0.3rem 0;
}
code {
  background: var(--code-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.88em;
}
pre {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}
pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}
figure {
  margin: 2rem 0;
}
figure img {
  border-radius: 8px;
  border: 1px solid var(--border);
}
figure.hero {
  margin: 0 0 2rem;
  width: 100vw;
  margin-left: calc(50% - 50vw);
}
figure.hero img {
  width: 100%;
  border: 0;
  border-radius: 0;
}

/* Home */
main.container:has(.hero-home) {
  max-width: 72rem;
}
.hero-home {
  text-align: center;
}
.hero-home img {
  width: 100vw;
  max-width: none;
  margin: 0 0 2rem calc(50% - 50vw);
  border-radius: 0;
}
.hero-home h1 {
  font-size: 2.4rem;
}
.lead {
  color: var(--muted);
  font-size: 1.15rem;
  margin: 0 0 1.5rem;
}
.button {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-weight: 600;
}
.button:hover {
  background: var(--primary-dark);
  color: #fff;
}
/* Cards use the golden ratio: width:height = 1.618:1, image:text = 1.618:1 */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(19rem, 1fr));
  gap: 1.25rem;
  margin-top: 3.5rem;
}
.card {
  display: flex;
  flex-direction: column;
  aspect-ratio: 1.618 / 1;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition:
    box-shadow 0.15s,
    border-color 0.15s;
}
.card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(45, 132, 138, 0.15);
  color: var(--text);
}
.card img {
  flex: 1.618 1 0;
  min-height: 0;
  width: 100%;
  object-fit: cover;
}
.card-body {
  flex: 1 1 0;
  min-height: 0;
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.card h3 {
  margin: 0 0 0.15rem;
  font-size: 1rem;
  line-height: 1.3;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

/* Footer */
.site-footer {
  background: var(--indigo);
  color: var(--mauve);
  font-size: 0.85rem;
}
.site-footer .container {
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}
.site-footer p {
  margin: 0;
}

/* Generated nonce block: present but quiet */
.exp-version-block {
  margin: 0;
  padding: 1.5rem max(1.25rem, calc((100% - 44rem) / 2 + 1.25rem));
  background: var(--nonce-bg);
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0;
  color: var(--muted);
  opacity: 0.85;
  font:
    11px/1.5 ui-monospace,
    SFMono-Regular,
    Menlo,
    monospace;
  overflow-x: auto;
}