:root {
  --white: #fff;
  --black: #111;
  --ink: #181818;
  --muted: #707070;
  --line: #dedede;
  --line-dark: #c7c7c7;
  --soft: #f7f7f7;
  --sidebar: 260px;
}

* {
  box-sizing: border-box;
  border-radius: 0 !important;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--white);
  color: var(--ink);
}

html {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

body {
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-shell {
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  position: fixed;
  z-index: 50;
  inset: 0 auto 0 0;
  width: var(--sidebar);
  background: #fff;
  border-right: 1px solid var(--line);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  transition: width 0.2s ease, transform 0.2s ease;
}

.sidebar.closed {
  width: 72px;
}

.sidebar.closed .logo b,
.sidebar.closed .side-nav a {
  font-size: 0;
}

.sidebar.closed .side-nav {
  display: none;
}

.sidebar.closed .side-nav a {
  border-left-color: transparent !important;
  background: transparent !important;
}

.sidebar.closed .side-meta {
  display: none;
}

.sidebar.closed .logo {
  display: none;
}

.sidebar.closed .sidebar-top {
  justify-content: center;
}

.sidebar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
}

.logo img {
  width: 35px;
  height: 35px;
  display: block;
  object-fit: contain;
}

.menu-toggle,
.mobile-nav-toggle {
  border: 0;
  outline: 0;
  appearance: none;
  -webkit-appearance: none;
  -webkit-tap-highlight-color: transparent;
  background: #fff;
  color: #111;
  width: 34px;
  height: 34px;
  padding: 0;
  display: grid;
  place-items: center;
  line-height: 1;
}

.menu-toggle:focus,
.menu-toggle:focus-visible,
.mobile-nav-toggle:focus,
.mobile-nav-toggle:focus-visible {
  outline: 0;
  box-shadow: none;
}

.menu-toggle:active,
.mobile-nav-toggle:active {
  background: #fff;
  color: #111;
}

.menu-toggle:hover,
.mobile-nav-toggle:hover {
  background: #f1f1f1;
}

.side-nav {
  display: flex;
  flex-direction: column;
  margin-top: 56px;
  gap: 2px;
}

.side-nav a {
  padding: 12px 10px;
  color: #666;
  border-left: 2px solid transparent;
}

.side-nav a:hover,
.side-nav a.active {
  background: #f5f5f5;
  color: #111;
  border-left-color: #111;
}

.side-meta {
  margin-top: auto;
  padding: 16px 10px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 5px;
  font: 10px / 1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: #888;
}

/* Main layout */
.main {
  margin-left: var(--sidebar);
  min-height: 100vh;
  transition: margin-left 0.2s ease;
}

.sidebar.closed + .main {
  margin-left: 72px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 44px;
  border-bottom: 1px solid rgba(20, 20, 20, 0.09);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.mobile-nav-toggle {
  display: none;
  flex: 0 0 34px;
}

.search {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid #cfcfcf;
  padding: 9px 0;
}

.search span {
  font: 13px ui-monospace, monospace;
  color: #777;
}

.search input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: #111;
}

.search input::placeholder {
  color: #999;
}

/* Layout container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 56px;
  padding-right: 56px;
}

.eyebrow {
  font: 10px / 1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.14em;
  color: #777;
}

.page-intro {
  padding-top: 88px;
  padding-bottom: 80px;
}

.page-intro h1 {
  margin: 8px 0 0;
  font-size: 64px;
  letter-spacing: -0.03em;
}

.page-intro p {
  color: #666;
  max-width: 650px;
  line-height: 1.7;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #bdbdbd;
  background: #fff;
  color: #111;
  padding: 11px 16px;
  font-size: 12px;
}

.button:hover {
  background: #f1f1f1;
  border-color: #777;
}

.button.black {
  background: #111;
  color: #fff;
  border-color: #111;
}

.button.black:hover {
  background: #333;
}

.text-link {
  font-size: 13px;
  color: #555;
}

.text-link:hover {
  color: #111;
}

/* Pagination */
.pagination {
  display: flex;
  gap: 0;
  margin-top: 46px;
  border-left: 1px solid var(--line);
}

.pagination a {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
}

.pagination a:hover,
.pagination a.active {
  background: #111;
  color: #fff;
}

/* Responsive */
@media (max-width: 900px) {
  :root {
    --sidebar: 0px;
  }

  .sidebar {
    width: 280px;
    transform: translateX(-100%);
    box-shadow: none;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar.open.closed {
    width: 280px;
    transform: translateX(0);
  }

  .sidebar.open.closed .side-nav {
    display: flex;
  }

  .sidebar.closed {
    width: 280px;
    transform: translateX(-100%);
  }

  .main,
  .sidebar.closed + .main {
    margin-left: 0;
  }

  .topbar {
    padding: 0 22px;
  }

  .mobile-nav-toggle {
    display: grid;
  }

  .container {
    padding-left: 24px;
    padding-right: 24px;
  }

  .sidebar {
    z-index: 60;
  }

  .nav-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.16);
    z-index: 55;
  }

  .nav-open .sidebar {
    z-index: 60;
  }

  .nav-open .topbar {
    z-index: 40;
  }
}

@media (max-width: 600px) {
  .page-intro h1 {
    font-size: 50px;
  }
}