@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap');

:root {
  --bg-color: #ffffff;
  --text-color: #1a1a1a;
  --link-color: #0000ee;
  --link-visited: #551a8b;
  --code-bg: #f8f8f8;
  --border-color: #eeeeee;
  --mono-font: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Monaco, Consolas, monospace;
  --sans-font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  font-family: var(--sans-font);
  line-height: 1.7;
  color: var(--text-color);
  background-color: var(--bg-color);
  max-width: 900px; /* Slightly narrower for better line length */
  margin: 0 auto;
  padding: 4rem 2rem;
}

header {
  border-bottom: 2px solid var(--text-color);
  margin-bottom: 4rem;
  padding-bottom: 2rem;
  display: flex;
  align-items: flex-start;
  gap: 2rem;
}

.logo {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
}

.header-content {
  flex-grow: 1;
}

.intro-text {
  max-width: 65ch;
  font-size: 1.1rem;
}

h1, h2, h3 {
  font-family: var(--mono-font);
  font-weight: 700;
  margin-top: 3rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

h1 { font-size: 1.8rem; margin-top: 0; color: #000; }
h2 { font-size: 1.4rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.5rem; margin-bottom: 2rem; }
h3 { font-size: 1.1rem; }

p { margin-bottom: 1.5rem; }

ul {
  list-style-type: square;
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

li { margin-bottom: 0.6rem; }

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

a:visited {
  color: var(--link-visited);
}

pre {
  background: var(--code-bg);
  padding: 1.5rem;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  margin: 2rem 0;
  font-family: var(--mono-font);
  font-size: 0.95rem;
}

code {
  font-family: var(--mono-font);
  background: var(--code-bg);
  padding: 0.2rem 0.4rem;
  font-size: 0.9em;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
}

th, td {
  border: 1px solid var(--border-color);
  padding: 0.8rem;
  text-align: left;
}

th {
  background: var(--code-bg);
}

hr {
  border: none;
  border-top: 1px solid var(--text-color);
  margin: 3rem 0;
}

section {
  margin-bottom: 5rem;
}

footer {
  margin-top: 8rem;
  font-size: 0.9rem;
  font-family: var(--mono-font);
  color: #000;
  border-top: 2px solid var(--text-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
}

.nav-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin: 2rem 0 4rem 0;
  font-family: var(--mono-font);
  font-size: 0.9rem;
}

.nav-links a {
  text-decoration: none;
  border-bottom: 1px solid var(--text-color);
  padding-bottom: 2px;
}

.nav-links a:hover {
  background-color: var(--text-color);
  color: var(--bg-color);
}

.hub-nav {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 4rem 0;
}

.hub-btn {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  border: 1px solid var(--text-color);
  text-decoration: none;
  color: var(--text-color);
  font-family: var(--mono-font);
  transition: all 0.15s ease;
}

.hub-btn:hover {
  background-color: var(--text-color);
  color: var(--bg-color);
}

.hub-btn span:first-child {
  font-size: 0.8rem;
  opacity: 0.7;
  margin-bottom: 0.5rem;
}

.hub-btn span:last-child {
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
}

/* News & Changelog Styles */
.news-item {
  margin-bottom: 8rem;
}

.news-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 3rem;
  align-items: flex-start;
}

.news-sidebar {
  position: sticky;
  top: 2rem;
}

.news-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  border-left: 2px solid var(--border-color);
}

.news-nav li {
  margin-bottom: 0;
}

.news-nav a {
  display: block;
  padding: 0.8rem 1rem;
  text-decoration: none;
  color: var(--text-color);
  font-family: var(--mono-font);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-color);
  transition: all 0.1s ease;
}

.news-nav a:hover {
  background-color: var(--code-bg);
}

.news-nav a.active {
  background-color: var(--text-color);
  color: var(--bg-color);
  border-left: 4px solid var(--link-color);
  margin-left: -2px; /* Offset the border-left to align */
}

.news-content-block {
  display: none;
}

.news-content-block.active {
  display: block;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.news-date {
  font-family: var(--mono-font);
  font-size: 0.9rem;
  background-color: var(--text-color);
  color: var(--bg-color);
  display: inline-block;
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.5rem;
}

.news-version {
  font-family: var(--mono-font);
  font-size: 0.8rem;
  opacity: 0.6;
  text-transform: uppercase;
}

.news-content {
  flex-grow: 1;
}

.news-header {
  font-size: 1.8rem;
  margin-top: 0;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.meta-header-inline {
  font-family: var(--mono-font);
  font-size: 0.9rem;
  opacity: 0.8;
  margin-bottom: 1.5rem;
}

.changelog-block {
  margin-top: 2rem;
  padding-left: 1rem;
  border-left: 3px solid var(--border-color);
}

/* Global Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 0.8rem 1.2rem;
  background: var(--text-color);
  color: var(--bg-color);
  text-decoration: none;
  font-family: var(--mono-font);
  font-size: 0.8rem;
  font-weight: bold;
  border: 1px solid var(--text-color);
  z-index: 9999;
  box-shadow: 4px 4px 0px rgba(0,0,0,0.1);
  transition: all 0.1s ease;
}

.back-to-top:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px rgba(0,0,0,0.2);
  background-color: var(--bg-color);
  color: var(--text-color);
}