:root {
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --fs-base: 1.0625rem;
  --fs-sm: 0.9rem;
  --fs-h1: 2rem;
  --fs-h2: 1.5rem;
  --lh-body: 1.6;
  --measure: 68ch;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --radius: 6px;
  --c-bg: #fafafa;
  --c-fg: #1a1a1a;
  --c-muted: #555;
  --c-border: #e0e0e0;
  --c-accent: #0057b7;
  --c-accent-hover: #003f85;
  --c-code-bg: #f2f2f2;
  --c-success-bg: #e6f4ea;
  --c-success-fg: #1b5e20;
  --c-error-bg: #fdecea;
  --c-error-fg: #b71c1c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-bg: #121212;
    --c-fg: #e8e8e8;
    --c-muted: #a0a0a0;
    --c-border: #2a2a2a;
    --c-accent: #6ea8ff;
    --c-accent-hover: #9cc3ff;
    --c-code-bg: #1c1c1c;
    --c-success-bg: #133318;
    --c-success-fg: #a5d6a7;
    --c-error-bg: #3a1515;
    --c-error-fg: #ef9a9a;
  }
}

* {
  box-sizing: border-box;
}

html {
  font-size: var(--fs-base);
}

body {
  margin: 0 auto;
  max-width: var(--measure);
  padding: var(--space-3);
  line-height: var(--lh-body);
  font-family: var(--font-body);
  color: var(--c-fg);
  background: radial-gradient(circle at top right, rgba(0, 87, 183, 0.07), transparent 40%), var(--c-bg);
}

main {
  padding: var(--space-4) 0;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: var(--fs-h1);
}

h2 {
  font-size: var(--fs-h2);
}

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

a:hover {
  color: var(--c-accent-hover);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  border-bottom: 1px solid var(--c-border);
  padding-bottom: var(--space-2);
}

.site-header nav a {
  text-decoration: none;
  color: var(--c-muted);
}

.page-home nav a[href="/"],
.page-about nav a[href="/about"],
.page-blog nav a[href="/blog"],
.page-portfolio nav a[href="/portfolio"],
.page-contact nav a[href="/contact"] {
  color: var(--c-accent);
  font-weight: 600;
}

footer {
  border-top: 1px solid var(--c-border);
  color: var(--c-muted);
  font-size: var(--fs-sm);
  padding-top: var(--space-2);
}

.date,
.meta,
.feed-link,
.tags {
  color: var(--c-muted);
  font-size: var(--fs-sm);
}

.project-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

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

.project-list li a {
  display: block;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: var(--space-2);
  color: inherit;
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease, border-color 150ms ease;
}

.project-list li a:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: var(--c-accent);
}

.project-list img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius);
}

.post-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.post-list h2 {
  margin-bottom: var(--space-1);
}

.post-list h2 a {
  color: inherit;
  text-decoration: none;
}

.post-list h2 a:hover {
  color: var(--c-accent);
}

.body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.body iframe,
.body video {
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16/9;
  height: auto;
  border: 0;
}

:not(pre) > code {
  background: var(--c-code-bg);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.92em;
}

pre,
pre.chroma {
  background: var(--c-code-bg);
  padding: var(--space-2);
  border-radius: var(--radius);
  overflow-x: auto;
  line-height: 1.45;
  font-size: 0.92em;
  margin: var(--space-2) 0;
}

pre code {
  background: transparent;
  padding: 0;
  font-family: var(--font-mono);
}

.contact-details {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-3) 0;
  padding: 0;
  list-style: none;
}

.contact-details li {
  display: grid;
  gap: 0.15rem;
}

.contact-details .label {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-muted, inherit);
}

details {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: var(--space-2);
  margin-bottom: var(--space-2);
}

details[open] summary {
  margin-bottom: var(--space-2);
}

summary {
  cursor: pointer;
  font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}