* {
  box-sizing: border-box;
}

:root {
  --color-bg: #0f0f0f;
  --color-surface: #171717;
  --color-surface-raised: #262626;
  --color-text: #f5f5f5;
  --color-muted: #a3a3a3;
  --color-accent: #e5e5e5;
  --color-accent-hover: #ffffff;
  --color-border: #404040;
  --max-content: 72rem;
  --max-wide: 96rem;
  --header-pad-x: 2rem;
  --content-pad-y: 2.5rem;
  --radius-sm: 4px;
  --radius-md: 6px;
  color-scheme: dark;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: 0.5rem 1rem;
  background: var(--color-surface-raised);
  color: var(--color-text);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.skip-link:focus-visible {
  left: var(--header-pad-x);
  top: 0.5rem;
}

img {
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

h1:first-child,
h2:first-child,
h3:first-child {
  margin-top: 0;
}

blockquote {
  margin: 1.25rem 0;
  padding: 0.75rem 1rem;
  border-left: 4px solid var(--color-accent);
  background: var(--color-surface-raised);
  color: var(--color-muted);
}

code {
  font-size: 0.9em;
  background: var(--color-surface-raised);
  padding: 0.15em 0.35em;
  border-radius: 4px;
}

pre {
  overflow-x: auto;
  padding: 1rem;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

pre code {
  padding: 0;
  background: none;
}

/* Header: brand left, nav right */
.site-header {
  padding: 1rem var(--header-pad-x);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  max-width: var(--max-wide);
  margin: 0 auto;
}

.site-brand-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.site-brand-icon {
  width: 1.5rem;
  height: 1.5rem;
  object-fit: contain;
  flex-shrink: 0;
}

.site-brand:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.site-tagline {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  justify-content: flex-end;
}

.site-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.site-nav a[aria-current="page"] {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* Main content widths */
.content {
  width: 100%;
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: var(--content-pad-y) var(--header-pad-x);
}

.content--standard {
  max-width: var(--max-content);
}

.content--wide {
  max-width: var(--max-wide);
}

.content--minimal {
  max-width: var(--max-content);
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.page-title {
  margin: 0 0 1.25rem;
  font-size: 2rem;
  line-height: 1.2;
}

/* Prose inside content areas */
.content ul,
.content ol,
.blog-post-body ul,
.blog-post-body ol,
.blog-index-intro ul,
.blog-index-intro ol {
  margin: 0.75rem 0;
  padding-left: 1.5rem;
}

.content li + li,
.blog-post-body li + li,
.blog-index-intro li + li {
  margin-top: 0.35rem;
}

.content hr,
.blog-post-body hr,
.blog-index-intro hr {
  margin: 1.5rem 0;
  border: 0;
  border-top: 1px solid var(--color-border);
}

.content table,
.blog-post-body table,
.blog-index-intro table {
  display: block;
  width: 100%;
  overflow-x: auto;
  margin: 1rem 0;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.content th,
.content td,
.blog-post-body th,
.blog-post-body td,
.blog-index-intro th,
.blog-index-intro td {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  text-align: left;
}

.content th,
.blog-post-body th,
.blog-index-intro th {
  background: var(--color-surface-raised);
  font-weight: 600;
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: 1.5rem var(--header-pad-x);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: 0.875rem;
  text-align: center;
}

.site-footer p {
  margin: 0.25rem 0;
}

.site-footer-inner {
  max-width: var(--max-wide);
  margin: 0 auto;
}

.page-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Blog post template */
.blog-post-page .content--blog {
  max-width: var(--max-content);
}

.blog-post {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 2rem 2.25rem;
}

.blog-post-kicker {
  display: inline-block;
  margin: 0 0 0.75rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--color-surface-raised);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.blog-post-title {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  line-height: 1.2;
}

.blog-post-excerpt {
  margin: 0 0 1rem;
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.5;
}

.blog-post-featured {
  margin: 0 0 1.5rem;
}

.blog-post-featured img {
  display: block;
  width: 100%;
  max-height: 24rem;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.blog-post-meta {
  margin: 0 0 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.9rem;
}

.blog-post-body > :first-child {
  margin-top: 0;
}

.blog-post-back {
  margin: 0 0 1rem;
  font-size: 0.9rem;
}

.blog-post-back a {
  color: var(--color-muted);
  text-decoration: none;
}

.blog-post-back a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Blog index template */
.blog-index-page .content--blog {
  max-width: var(--max-content);
}

.blog-index-header {
  margin-bottom: 2rem;
}

.blog-index-title {
  margin: 0 0 0.75rem;
  font-size: 2rem;
  line-height: 1.2;
}

.blog-index-intro > :first-child {
  margin-top: 0;
}

.blog-index-intro > :last-child {
  margin-bottom: 0;
}

.blog-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.blog-list-item {
  border-bottom: 1px solid var(--color-border);
}

.blog-list-item:first-child {
  border-top: 1px solid var(--color-border);
}

.blog-list-row-link {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 1.1rem 0;
  color: inherit;
  text-decoration: none;
}

.blog-list-row-link:hover {
  text-decoration: none;
}

.blog-list-row-link:hover .blog-list-link {
  color: var(--color-accent);
  text-decoration: underline;
}

.blog-list-thumb {
  width: 5rem;
  height: 3.5rem;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.blog-list-main {
  flex: 1;
  min-width: 0;
}

.blog-list-link {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
}

.blog-list-excerpt {
  margin: 0.35rem 0 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.blog-list-date {
  font-size: 0.875rem;
  color: var(--color-muted);
  white-space: nowrap;
}

.blog-list-empty {
  margin: 0;
  color: var(--color-muted);
}

/* Hero template */
.hero-band {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 3.5rem var(--header-pad-x);
  text-align: center;
}

.hero-inner {
  max-width: var(--max-content);
  margin: 0 auto;
}

.hero-title {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.15;
  color: var(--color-text);
}

.hero-tagline {
  margin: 0.75rem auto 0;
  font-size: 1.15rem;
  color: var(--color-muted);
  max-width: 64rem;
}

@media (max-width: 640px) {
  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav ul {
    justify-content: flex-start;
  }
}