:root {
  --color-bg: #000000;
  --color-surface: #111111;
  --color-border: #222222;
  --color-text: #ffffff;
  --color-muted: #999999;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --space-inline: clamp(1.25rem, 4vw, 3.5rem);
  --width-site: 72rem;
  --width-read: 42rem;
  --font-content: 1.125rem;
}

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

html {
  font-size: 16px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.page__main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: calc(var(--width-site) + var(--space-inline) * 2);
  margin-inline: auto;
}

.container--narrow {
  max-width: calc(var(--width-read) + var(--space-inline) * 2);
}

/* Site header */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.site-header__logo {
  display: flex;
  align-items: center;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 700;
  font-size: clamp(0.9375rem, 2vw, 1.0625rem);
  letter-spacing: -0.02em;
}

.site-header__logo-image {
  display: block;
  height: 150px;
  width: auto;
}

.site-header__logo:hover {
  color: var(--color-muted);
}

.site-header__logo:hover .site-header__logo-image {
  opacity: 0.85;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 1.75rem);
}

.site-nav__link {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.site-nav__link:hover,
.site-nav__link--active {
  color: var(--color-text);
}

/* Hero */

.hero {
  padding-block: clamp(3.5rem, 10vw, 7rem) clamp(2.5rem, 6vw, 4rem);
}

.hero__eyebrow {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.hero__title {
  margin: 0 0 clamp(1.25rem, 2vw, 1.75rem);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.04em;
  max-width: 16ch;
}

.hero__body {
  max-width: 38rem;
  color: var(--color-muted);
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  line-height: 1.75;
}

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

/* Latest section */

.latest {
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(3rem, 6vw, 5rem);
}

.latest__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.latest__title {
  margin: 0;
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.latest__link {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
}

.latest__link:hover {
  color: var(--color-text);
}

/* Post list */

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-list__item {
  margin: 0;
  border-bottom: 1px solid var(--color-border);
}

.post-list__link {
  display: block;
  padding-block: clamp(1.25rem, 2.5vw, 1.75rem);
  text-decoration: none;
  color: inherit;
}

.post-list__link:hover .post-list__title {
  color: var(--color-muted);
}

.post-list__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  color: var(--color-muted);
}

.post-list__type {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.post-list__type::after {
  content: "·";
  margin-left: 0.5rem;
}

.post-list__title {
  margin: 0 0 0.375rem;
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.02em;
  transition: color 0.15s ease;
}

.post-list__excerpt {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.55;
  max-width: 52rem;
}

.post-list__series {
  margin: 0.5rem 0 0;
  color: var(--color-muted);
  font-size: 0.8125rem;
}

/* Section (list pages) */

.section {
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(3rem, 6vw, 5rem);
}

.section__header {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  padding-bottom: clamp(1.25rem, 2vw, 1.75rem);
  border-bottom: 1px solid var(--color-border);
}

.section__title {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.section__intro {
  max-width: 38rem;
  color: var(--color-muted);
  font-size: clamp(1.0625rem, 2vw, 1.1875rem);
}

/* Post (single) */

.post {
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(3rem, 6vw, 5rem);
}

.post__header {
  margin-bottom: clamp(2rem, 4vw, 2.5rem);
  padding-bottom: clamp(1.5rem, 3vw, 2rem);
  border-bottom: 1px solid var(--color-border);
}

.post__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 0 0 1rem;
  font-size: 0.75rem;
  color: var(--color-muted);
}

.post__type {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.post__type::after {
  content: "·";
  margin-left: 0.5rem;
}

.post__title {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.post__lead {
  margin: 0 0 1.25rem;
  color: var(--color-muted);
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: 1.65;
}

.post__tags,
.post__series,
.post__reference {
  margin: 0 0 0.5rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.content .post__video {
  margin: 2rem 0 0;
  aspect-ratio: 16 / 9;
}

.post__video {
  margin: 0 0 2rem;
  aspect-ratio: 16 / 9;
}

.post__iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.post__body {
  margin-bottom: 0;
}

/* Content typography */

.content {
  font-size: var(--font-content);
  line-height: 1.7;
}

.content > :first-child {
  margin-top: 0;
}

.content > :last-child {
  margin-bottom: 0;
}

.content h2 {
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  font-size: clamp(1.375rem, 2.5vw, 1.625rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.content h3 {
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.content p {
  margin: 0 0 1rem;
}

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

.content a:hover {
  color: var(--color-muted);
}

.content ul,
.content ol {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.content li {
  margin-bottom: 0.375rem;
}

.content code {
  font-size: 0.875em;
  padding: 0.125rem 0.25rem;
  background-color: var(--color-surface);
}

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

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

.content blockquote {
  margin: 1.5rem 0;
  padding-left: 1rem;
  border-left: 2px solid var(--color-muted);
  color: var(--color-muted);
}

.content img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0 2rem;
  border: 1px solid var(--color-border);
}

.content .clip {
  margin: 1.5rem 0 2rem;
}

.content .clip video {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.content .clip figcaption {
  margin-top: 0.5rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.content table {
  width: 100%;
  margin: 0 0 1.5rem;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 1rem;
  line-height: 1.6;
}

.content thead th {
  padding: 0 1rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

.content tbody td {
  padding: 0.875rem 1rem;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
}

.content tbody tr:last-child td {
  border-bottom: none;
}

.content tbody td:first-child {
  padding-left: 0;
}

.content thead th:first-child {
  padding-left: 0;
}

.content tbody td:last-child,
.content thead th:last-child {
  padding-right: 0;
}

@media (max-width: 640px) {
  .content table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .content thead th,
  .content tbody td {
    padding-inline: 0.75rem;
    min-width: 10rem;
  }

  .content tbody td:first-child,
  .content thead th:first-child {
    padding-left: 0;
  }
}

/* Site footer */

.site-footer {
  margin-top: auto;
  padding-block: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.site-footer__tagline {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.875rem;
  letter-spacing: -0.01em;
}

.site-footer__nav {
  display: flex;
  gap: 1.25rem;
}

.site-footer__link {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
}

.site-footer__link:hover {
  color: var(--color-text);
}

.site-footer__copy {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.8125rem;
}

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