rust-web-server 18.10.0

Single-binary web server and reverse proxy: automatic HTTPS (Let's Encrypt), HTTP/1.1, HTTP/2 and HTTP/3, load balancing, auth and rate limiting, configured in one TOML file. Also a Rust library: routing, middleware, MCP server, ORM, background jobs. No hyper, no Tower; HTTP/2 and HTTP/3 framing via h2 and quinn.
Documentation 
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/* Page layout shared by every page. Values come from theme.css tokens only. */

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-200);
}

.site-header {
  position: sticky;
  top: var(--space-200);
  z-index: 5;
  display: flex;
  justify-content: center;
  padding: 0 var(--space-200);
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: var(--space-300);
  padding: var(--space-75) var(--space-200);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-full);
  background: var(--rws-glass);
  backdrop-filter: blur(12px);

}
.site-header a {
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
  font-size: var(--text-sm);
  line-height: var(--leading-sm);
  font-weight: 600;
}
.site-header a[aria-current="page"] { color: var(--md-sys-color-primary); }

.lockup {
  display: inline-flex;
  align-items: center;
  gap: var(--space-100);
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
}
.lockup svg { height: 24px; width: auto; display: block; }
.lockup .word { display: flex; flex-direction: column; }
.lockup b { font-size: var(--text-base); line-height: var(--leading-base); font-weight: 700; }
.lockup small {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: var(--leading-xs);
  letter-spacing: 0.2em;
  color: var(--md-sys-color-secondary);
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: var(--space-500);
  height: var(--space-500);
  border: 0;
  border-radius: var(--md-sys-shape-corner-full);
  background: transparent;
  color: var(--md-sys-color-on-surface);
  cursor: pointer;
  transition: background-color var(--duration-color) var(--ease);
}
.icon-button:hover { background: var(--md-sys-color-surface-container); }
.icon-button:active { transform: scale(0.98); }
.icon-button svg { width: 20px; height: 20px; }
[data-theme-toggle] .moon { display: none; }
[data-theme-toggle][aria-pressed="true"] .sun { display: none; }
[data-theme-toggle][aria-pressed="true"] .moon { display: block; }

:root {
  /* color-mix() over light-dark() resolves to transparent in Chromium, so the
     translucent surfaces are spelled out per scheme. */
  --rws-glass: light-dark(rgb(242 235 227 / 0.8), rgb(19 18 9 / 0.8));
  --rws-glass-strong: light-dark(rgb(242 235 227 / 0.97), rgb(19 18 9 / 0.97));
  --rws-mark-rack: light-dark(#16120f, #f2ebe3);
  --rws-mark-dot: light-dark(#f2ebe3, #16120f);
  --rws-mark-slot: light-dark(#7a706a, #6b625c);
}

.site-footer {
  margin-top: var(--space-900);
  padding: var(--space-600) 0;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  color: var(--md-sys-color-on-surface-variant);
  font-size: var(--text-sm);
  line-height: var(--leading-sm);
}
.site-footer ul { display: flex; flex-wrap: wrap; gap: var(--space-300); list-style: none; margin: 0; padding: 0; }
.site-footer a { color: inherit; }

/* /theme/ page */
.theme-page section { padding: var(--space-600) 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-300); }
.theme-page h2 { font-size: var(--text-2xl); line-height: var(--leading-2xl); }
.row { display: flex; flex-wrap: wrap; gap: var(--space-200); align-items: center; }
.stack { display: grid; gap: var(--space-200); }
.mark-large svg { width: 160px; height: auto; display: block; }
.brand img { border-radius: var(--md-sys-shape-corner-extra-large); }
.type-sample { margin: 0; }
.type-sample.mono { font-family: var(--font-mono); }
.space-row { display: flex; align-items: center; gap: var(--space-200); }
.space-row code { width: var(--space-500); font-size: var(--text-xs); line-height: var(--leading-xs); }
.space-bar { height: var(--space-200); background: var(--rws-orange); border-radius: var(--md-sys-shape-corner-extra-small); }
.rail-demo { height: 320px; display: flex; border: 1px solid var(--md-sys-color-outline-variant); border-radius: var(--md-sys-shape-corner-extra-large); overflow: hidden; }

.hero-heading {
  max-width: 680px;
  font-size: var(--text-5xl);
  line-height: var(--leading-5xl);
  background: linear-gradient(90deg, light-dark(#000000, #ffffff), light-dark(#666666, #9b9b9b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead { max-width: 680px; margin: 0; font-size: var(--text-lg); line-height: var(--leading-lg); color: var(--md-sys-color-on-surface-variant); }
@media (min-width: 768px) {
  .hero-heading { font-size: var(--text-6xl); line-height: var(--leading-6xl); }
}

/* Mobile menu */
.menu-toggle { display: none; }
.menu-icon { position: relative; width: 18px; height: 12px; }
.menu-icon span {
  position: absolute; left: 0; right: 0; height: 2px; border-radius: 2px;
  background: currentColor;
  transition: transform var(--duration-layout) var(--ease);
}
.menu-icon span:first-child { top: 2px; }
.menu-icon span:last-child { bottom: 2px; }
[aria-expanded="true"] .menu-icon span:first-child { transform: translateY(3px) rotate(45deg); }
[aria-expanded="true"] .menu-icon span:last-child { transform: translateY(-3px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: -1;
  padding: var(--space-900) var(--space-300) var(--space-300);
  background: var(--rws-glass-strong);
  backdrop-filter: blur(24px);
  opacity: 0;
  transition: opacity var(--duration-color) var(--ease);
}
.mobile-menu.open { opacity: 1; }
.mobile-menu nav { display: grid; gap: var(--space-300); border: 0; background: none; padding: 0; backdrop-filter: none; }
.mobile-menu a { font-size: var(--text-2xl); line-height: var(--leading-2xl); opacity: 0; transform: translateY(var(--space-300)); transition: opacity var(--duration-layout) var(--ease), transform var(--duration-layout) var(--ease); }
.mobile-menu.open a { opacity: 1; transform: none; }
.mobile-menu.open a:nth-child(2) { transition-delay: 60ms; }
.mobile-menu.open a:nth-child(3) { transition-delay: 120ms; }
.mobile-menu.open a:nth-child(4) { transition-delay: 180ms; }
.mobile-menu.open a:nth-child(5) { transition-delay: 240ms; }
.menu-open body { overflow: hidden; }

@media (max-width: 767px) {
  .nav-links { display: none; }
  .menu-toggle { display: inline-grid; }
  .site-header nav { gap: var(--space-75); }
  .lockup .word { display: none; }
}
@media (min-width: 768px) {
  .nav-links { display: contents; }
}

/* Long rows scroll inside their box, never the page */
lit-material-tabs { max-width: 100%; }
lit-material-tabs::part(tablist) { overflow-x: auto; scrollbar-width: none; }
lit-material-code-block::part(pre) { overflow-x: auto; }

lit-material-navigation-rail-item [slot="icon"] { width: 24px; height: 24px; }

/* Docs layout: sidebar · article · on-page TOC */
.docs-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-400);
  max-width: 1440px;
  margin: var(--space-600) auto 0;
  padding: 0 var(--space-200);
}
@media (min-width: 900px) {
  .docs-layout { grid-template-columns: 260px minmax(0, 1fr); }
}
@media (min-width: 1200px) {
  .docs-layout { grid-template-columns: 260px minmax(0, 1fr) 220px; }
}
.docs-sidebar, .docs-aside { font-size: var(--text-sm); line-height: var(--leading-sm); }
.docs-nav-desktop { display: none; }
@media (min-width: 900px) {
  .docs-nav-mobile { display: none; }
  .docs-nav-desktop {
    display: block;
    position: sticky;
    top: var(--space-900);
    max-height: calc(100vh - var(--space-900) - var(--space-300));
    overflow-y: auto;
    padding-right: var(--space-75);
  }
}
.docs-aside { display: none; }
@media (min-width: 1200px) {
  .docs-aside { display: block; }
  .docs-toc { position: sticky; top: var(--space-900); }
}
.docs-nav-mobile summary {
  display: flex; align-items: center; gap: var(--space-75);
  padding: var(--space-75) var(--space-100);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  cursor: pointer; font-weight: 600; list-style: none;
}
.docs-nav-mobile summary svg, .docs-search-button svg, .docs-edit svg { width: 16px; height: 16px; flex: none; }
.docs-nav-mobile[open] .docs-nav { margin-top: var(--space-200); }

.docs-search-button {
  display: flex; align-items: center; gap: var(--space-75); width: 100%;
  margin-bottom: var(--space-200);
  padding: var(--space-75) var(--space-100);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface-variant);
  font: inherit; cursor: pointer;
  transition: background-color var(--duration-color) var(--ease);
}
.docs-search-button:hover { background: var(--md-sys-color-surface-container); }
.docs-search-button span { flex: 1; text-align: left; }
.docs-search-button kbd {
  padding: 0 var(--space-50); border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-extra-small); font-size: var(--text-xs); line-height: var(--leading-xs);
}
.docs-group { margin-bottom: var(--space-200); }
.docs-group summary { cursor: pointer; font-weight: 600; padding: var(--space-50) 0; color: var(--md-sys-color-on-surface); }
.docs-group ul, .docs-toc ul { list-style: none; margin: 0; padding: 0; }
.docs-group li a {
  display: block;
  padding: var(--space-50) var(--space-100);
  border-radius: var(--md-sys-shape-corner-medium);
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  transition: background-color var(--duration-color) var(--ease);
}
.docs-group li a:hover { background: var(--md-sys-color-surface-container); }
.docs-group li a[aria-current="page"] {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font-weight: 600;
}
.docs-toc-title { margin: 0 0 var(--space-75); font-weight: 600; }
.docs-toc li a { display: block; padding: var(--space-25) 0; color: var(--md-sys-color-on-surface-variant); text-decoration: none; }
.docs-toc li a:hover { color: var(--md-sys-color-primary); }
.docs-toc li.depth-3 a { padding-left: var(--space-100); }

.docs-main { min-width: 0; max-width: 780px; }
.docs-article h1 { font-size: var(--text-4xl); line-height: var(--leading-4xl); }
.docs-lead { margin: var(--space-200) 0 0; font-size: var(--text-lg); line-height: var(--leading-lg); color: var(--md-sys-color-on-surface-variant); }

.prose { margin-top: var(--space-400); overflow-wrap: break-word; }
.prose :not(pre) > code { overflow-wrap: anywhere; }
.prose > * + * { margin-top: var(--space-200); }
.prose h2 { margin-top: var(--space-600); font-size: var(--text-2xl); line-height: var(--leading-2xl); scroll-margin-top: var(--space-900); }
.prose h3 { margin-top: var(--space-400); font-size: var(--text-xl); line-height: var(--leading-xl); scroll-margin-top: var(--space-900); }
.prose h4 { margin-top: var(--space-300); font-size: var(--text-base); line-height: var(--leading-base); }
.prose p, .prose ul, .prose ol { margin-bottom: 0; }
.prose li + li { margin-top: var(--space-50); }
.prose :not(pre) > code {
  padding: var(--space-25) var(--space-50);
  border-radius: var(--md-sys-shape-corner-extra-small);
  background: var(--md-sys-color-surface-container);
  font-size: 0.875em;
}
.heading-anchor { margin-left: var(--space-75); opacity: 0; color: var(--md-sys-color-secondary); text-decoration: none; transition: opacity var(--duration-color) var(--ease); }
.prose h2:hover .heading-anchor, .prose h3:hover .heading-anchor { opacity: 1; }
.prose blockquote { margin-left: 0; padding: var(--space-100) var(--space-200); border-radius: var(--md-sys-shape-corner-large); background: var(--md-sys-color-surface-container-low); }
.table-wrap { overflow-x: auto; border: 1px solid var(--md-sys-color-outline-variant); border-radius: var(--md-sys-shape-corner-large); }
.prose table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); line-height: var(--leading-sm); }
.prose th, .prose td { padding: var(--space-75) var(--space-100); text-align: left; vertical-align: top; }
.prose tr + tr td, .prose tbody tr td { border-top: 1px solid var(--md-sys-color-outline-variant); }
.prose th { background: var(--md-sys-color-surface-container-low); font-weight: 600; }
.prose lit-material-alert, .prose lit-material-code-block { display: block; }

/* Shiki dual themes: colours come as --shiki-light / --shiki-dark */
.shiki, .shiki span { color: light-dark(var(--shiki-light), var(--shiki-dark)); }
.shiki { background: transparent !important; margin: 0; }

/* Code blocks and alerts inside Markdown are server-rendered too (declarative
   shadow DOM), so they need no styles for the not-yet-upgraded state. */

.docs-edit { margin-top: var(--space-600); font-size: var(--text-sm); line-height: var(--leading-sm); }
.docs-edit a { display: inline-flex; align-items: center; gap: var(--space-75); color: var(--md-sys-color-on-surface-variant); }
.docs-pager { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-200); margin-top: var(--space-300); }
.docs-pager a {
  display: grid; gap: var(--space-25);
  padding: var(--space-200);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-large);
  text-decoration: none; color: var(--md-sys-color-on-surface);
  transition: background-color var(--duration-color) var(--ease);
}
.docs-pager a:hover { background: var(--md-sys-color-surface-container-low); }
.docs-pager .next { text-align: right; grid-column: 2; }
.docs-pager small { color: var(--md-sys-color-on-surface-variant); font-size: var(--text-xs); line-height: var(--leading-xs); }
.docs-pager span { font-weight: 600; }

.docs-index { display: grid; gap: var(--space-400); margin-top: var(--space-400); }
@media (min-width: 700px) { .docs-index { grid-template-columns: 1fr 1fr; } }
.docs-index h2 { font-size: var(--text-xl); line-height: var(--leading-xl); }
.docs-index ul { list-style: none; margin: var(--space-100) 0 0; padding: 0; display: grid; gap: var(--space-100); }
.docs-index li { display: grid; }
.docs-index li span { color: var(--md-sys-color-on-surface-variant); font-size: var(--text-sm); line-height: var(--leading-sm); }

/* Search dialog */
.search-dialog {
  width: min(640px, calc(100vw - var(--space-400)));
  max-height: min(560px, calc(100vh - var(--space-900)));
  margin-top: var(--space-900);
  padding: 0;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-extra-large);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
}
.search-dialog::backdrop { background: rgb(0 0 0 / 0.4); }
.search-form { display: flex; align-items: center; gap: var(--space-100); padding: var(--space-100) var(--space-200); border-bottom: 1px solid var(--md-sys-color-outline-variant); }
.search-form > svg { width: 20px; height: 20px; flex: none; color: var(--md-sys-color-on-surface-variant); }
.search-form input::-webkit-search-cancel-button { display: none; }
.search-form input { flex: 1; min-width: 0; border: 0; background: none; color: inherit; font: inherit; font-size: var(--text-lg); line-height: var(--leading-lg); outline: none; }
.search-results { padding: var(--space-100); overflow-y: auto; }
.search-results ul { list-style: none; margin: 0; padding: 0; }
.search-results a { display: grid; gap: var(--space-25); padding: var(--space-100); border-radius: var(--md-sys-shape-corner-large); color: inherit; text-decoration: none; }
.search-results a:hover, .search-results a:focus-visible { background: var(--md-sys-color-surface-container); }
.search-results span { font-size: var(--text-sm); line-height: var(--leading-sm); color: var(--md-sys-color-on-surface-variant); }
.search-results mark { background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container); border-radius: var(--md-sys-shape-corner-extra-small); }
.search-empty { margin: 0; padding: var(--space-200); color: var(--md-sys-color-on-surface-variant); }
.search-skeleton { height: var(--space-600); margin: var(--space-75) 0; border-radius: var(--md-sys-shape-corner-large); background: var(--md-sys-color-surface-container); animation: pulse 1.2s var(--ease) infinite alternate; }
@keyframes pulse { from { opacity: 0.5; } to { opacity: 1; } }

/* Version switcher and older-version notice */
.version-switch { position: relative; margin-bottom: var(--space-100); }
.version-switch summary {
  display: flex; align-items: center; gap: var(--space-75);
  padding: var(--space-75) var(--space-100);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  cursor: pointer; list-style: none;
}
.version-switch summary::after { content: "▾"; margin-left: auto; color: var(--md-sys-color-on-surface-variant); }
.version-switch ul {
  list-style: none; margin: var(--space-50) 0 0; padding: var(--space-50);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-surface);
}
.version-switch li a { display: block; padding: var(--space-50) var(--space-100); border-radius: var(--md-sys-shape-corner-small); color: var(--md-sys-color-on-surface); text-decoration: none; }
.version-switch li a:hover { background: var(--md-sys-color-surface-container); }
.version-switch li a[aria-current="page"] { font-weight: 600; color: var(--md-sys-color-primary); }
.latest-tag {
  padding: 0 var(--space-75); border-radius: var(--md-sys-shape-corner-full);
  background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container);
  font-size: var(--text-xs); line-height: var(--leading-xs); font-weight: 600;
}
.version-notice { display: block; margin-bottom: var(--space-400); }