/* ----------------------------------------------------------------
   Catppuccin — Latte (light) & Macchiato (dark)
   https://github.com/catppuccin/catppuccin
   ---------------------------------------------------------------- */

:root {
  color-scheme: light;

  /* Catppuccin Latte */
  --ctp-rosewater: #dc8a78;
  --ctp-flamingo: #dd7878;
  --ctp-pink: #ea76cb;
  --ctp-mauve: #8839ef;
  --ctp-red: #d20f39;
  --ctp-maroon: #e64553;
  --ctp-peach: #fe640b;
  --ctp-yellow: #df8e1d;
  --ctp-green: #40a02b;
  --ctp-teal: #179299;
  --ctp-sky: #04a5e5;
  --ctp-sapphire: #209fb5;
  --ctp-blue: #1e66f5;
  --ctp-lavender: #7287fd;

  --ctp-base: #eff1f5;
  --ctp-mantle: #e6e9ef;
  --ctp-crust: #dce0e8;
  --ctp-surface0: #ccd0da;
  --ctp-surface1: #bcc0cc;
  --ctp-surface2: #acb0be;
  --ctp-overlay0: #9ca0b0;
  --ctp-overlay1: #8c8fa1;
  --ctp-overlay2: #7c7f93;
  --ctp-subtext0: #6c6f85;
  --ctp-subtext1: #5c5f77;
  --ctp-text: #4c4f69;

  --bg: var(--ctp-base);
  --bg-subtle: var(--ctp-mantle);
  --bg-elevated: color-mix(in srgb, var(--ctp-base) 72%, #ffffff);
  --text: var(--ctp-text);
  --text-muted: var(--ctp-subtext0);
  --border: var(--ctp-surface0);
  --border-subtle: var(--ctp-mantle);

  --accent: var(--ctp-blue);
  --accent-2: var(--ctp-mauve);
  --accent-3: var(--ctp-teal);
  --accent-contrast: #ffffff;
  --accent-soft: color-mix(in srgb, var(--accent) 10%, transparent);
  --accent-line: linear-gradient(90deg, var(--accent-2), var(--accent), var(--accent-3));
  --hero-gradient: linear-gradient(110deg, var(--ctp-mauve), var(--ctp-blue) 48%, var(--ctp-teal));

  --shadow: 0 1px 2px rgba(76, 79, 105, 0.06), 0 8px 24px rgba(76, 79, 105, 0.07);
  --shadow-hover: 0 2px 4px rgba(76, 79, 105, 0.06), 0 16px 40px color-mix(in srgb, var(--accent) 16%, transparent);
  --shadow-input: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);

  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 18px;
  --pill: 999px;

  --font-sans: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "Roboto Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --container: 1400px;
  --sidebar-width: 14rem;
  --toc-width: 15rem;
}

html[data-theme="dark"] {
  color-scheme: dark;

  /* Catppuccin Macchiato */
  --ctp-rosewater: #f4dbd6;
  --ctp-flamingo: #f0c6c6;
  --ctp-pink: #f5bde6;
  --ctp-mauve: #c6a0f6;
  --ctp-red: #ed8796;
  --ctp-maroon: #ee99a0;
  --ctp-peach: #f5a97f;
  --ctp-yellow: #eed49f;
  --ctp-green: #a6da95;
  --ctp-teal: #8bd5ca;
  --ctp-sky: #91d7e3;
  --ctp-sapphire: #7dc4e4;
  --ctp-blue: #8aadf4;
  --ctp-lavender: #b7bdf8;

  --ctp-base: #24273a;
  --ctp-mantle: #1e2030;
  --ctp-crust: #181926;
  --ctp-surface0: #363a4f;
  --ctp-surface1: #494d64;
  --ctp-surface2: #5b6078;
  --ctp-overlay0: #6e738d;
  --ctp-overlay1: #8087a2;
  --ctp-overlay2: #939ab7;
  --ctp-subtext0: #a5adcb;
  --ctp-subtext1: #b8c0e0;
  --ctp-text: #cad3f5;

  --bg: var(--ctp-base);
  --bg-subtle: var(--ctp-mantle);
  --bg-elevated: color-mix(in srgb, var(--ctp-base) 82%, var(--ctp-surface0));
  --text: var(--ctp-text);
  --text-muted: var(--ctp-subtext0);
  --border: var(--ctp-surface0);
  --border-subtle: color-mix(in srgb, var(--ctp-surface0) 62%, transparent);

  --accent: var(--ctp-lavender);
  --accent-2: var(--ctp-mauve);
  --accent-3: var(--ctp-teal);
  --accent-contrast: var(--ctp-crust);
  --accent-soft: color-mix(in srgb, var(--accent) 14%, transparent);

  --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 12px 32px rgba(0, 0, 0, 0.28);
  --shadow-hover: 0 2px 4px rgba(0, 0, 0, 0.3), 0 20px 48px color-mix(in srgb, var(--accent) 20%, transparent);
  --shadow-input: 0 0 0 3px color-mix(in srgb, var(--accent) 24%, transparent);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    radial-gradient(58rem 42rem at 8% -12%, color-mix(in srgb, var(--accent-2) 13%, transparent), transparent 68%),
    radial-gradient(50rem 36rem at 100% -4%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%),
    radial-gradient(46rem 46rem at 50% 108%, color-mix(in srgb, var(--accent-3) 8%, transparent), transparent 72%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--accent);
  color: var(--accent-contrast);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--ctp-surface2) transparent;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--ctp-surface2);
  border: 2px solid transparent;
  background-clip: content-box;
  border-radius: var(--pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ctp-overlay0);
  background-clip: content-box;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 140ms ease, text-decoration-color 140ms ease;
}

a:hover {
  color: color-mix(in srgb, var(--accent) 80%, var(--ctp-pink));
  text-decoration-color: currentColor;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 0.6rem 1rem;
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 600;
}

.skip-link:focus {
  left: 0;
}

/* ---------------------------------------------------------------- header */

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 74%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
  box-shadow: 0 4px 24px color-mix(in srgb, var(--ctp-crust) 12%, transparent);
}

.header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, var(--accent-2), var(--accent), var(--accent-3), transparent 95%);
  opacity: 0.5;
  pointer-events: none;
}

.header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.55rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  text-decoration: none;
}

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

.brand__logo {
  border-radius: 8px;
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--accent) 45%, transparent));
  transition: transform 180ms ease, filter 180ms ease;
}

.brand:hover .brand__logo {
  transform: rotate(-4deg) scale(1.06);
  filter: drop-shadow(0 0 16px color-mix(in srgb, var(--accent) 65%, transparent));
}

.tabs {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-left: 0.75rem;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tabs__link {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.8rem;
  border-radius: var(--pill);
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 140ms ease, color 140ms ease, box-shadow 140ms ease;
}

.tabs__link:hover {
  color: var(--text);
  background: var(--bg-subtle);
  text-decoration: none;
}

.tabs__link--active {
  color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 28%, transparent);
}

.header__tools {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.3rem;
  height: 2.3rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease, transform 140ms ease;
}

.icon-button:hover {
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-1px);
}

.icon-moon {
  display: none;
}

html[data-theme="dark"] .icon-sun {
  display: none;
}

html[data-theme="dark"] .icon-moon {
  display: inline;
}

.lang-switch {
  position: relative;
}

.lang-switch__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease, transform 140ms ease;
}

.lang-switch__button:hover {
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-1px);
}

.lang-switch__menu {
  position: absolute;
  right: 0;
  top: calc(100% + 0.55rem);
  min-width: 10rem;
  padding: 0.4rem;
  background: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: none;
}

.lang-switch[data-open="true"] .lang-switch__menu {
  display: block;
  animation: pop-in 140ms ease both;
}

.lang-switch__item {
  display: block;
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--text);
  text-decoration: none;
}

.lang-switch__item:hover {
  background: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

.lang-switch__item--active {
  color: var(--accent);
  background: var(--accent-soft);
  font-weight: 600;
}

/* ---------------------------------------------------------------- search */

.search-panel {
  border-top: 1px solid var(--border-subtle);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

.search-panel__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1rem 1.25rem 1.35rem;
}

.search-panel__input {
  width: 100%;
  padding: 0.75rem 1rem;
  font: inherit;
  color: var(--text);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--pill);
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

.search-panel__input::placeholder {
  color: var(--text-muted);
}

.search-panel__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-input);
}

.search-panel__results {
  list-style: none;
  margin: 0.85rem 0 0;
  padding: 0;
  max-height: 60vh;
  overflow-y: auto;
}

.search-panel__results li {
  border-bottom: 1px solid var(--border-subtle);
}

.search-panel__results a {
  display: block;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text);
  text-decoration: none;
}

.search-panel__results a:hover {
  background: var(--accent-soft);
  color: var(--text);
  text-decoration: none;
}

.search-result__title {
  font-weight: 600;
}

.search-result__path {
  display: block;
  font-size: 0.8rem;
  color: var(--accent);
}

.search-result__excerpt {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.search-empty {
  padding: 0.6rem 0.2rem;
  color: var(--text-muted);
}

/* ---------------------------------------------------------------- layout */

.main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.hero {
  padding: 1.5rem 0 0.5rem;
}

.hero__title {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  background: var(--hero-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 2px 18px color-mix(in srgb, var(--accent) 18%, transparent));
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
}

@media (min-width: 60em) {
  .layout--with-sidebar {
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  }
}

@media (min-width: 76.25em) {
  .layout--with-toc {
    grid-template-columns: minmax(0, 1fr) var(--toc-width);
  }

  .layout--with-sidebar.layout--with-toc {
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--toc-width);
  }
}

@media (max-width: 76.24em) {
  .toc {
    display: none;
  }
}

@media (max-width: 59.99em) {
  .sidebar {
    display: none;
  }
}

.sidebar,
.toc {
  position: sticky;
  top: 5rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  font-size: 0.85rem;
}

.sidebar__title,
.toc__title {
  margin: 0 0 0.6rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sidebar__list,
.toc__list,
.toc__sublist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--border-subtle);
}

.toc__sublist {
  border-left: 0;
}

.sidebar__link,
.toc__list a {
  display: block;
  padding: 0.24rem 0.8rem;
  color: var(--text-muted);
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-left: -1px;
  text-decoration: none;
  transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease;
}

.sidebar__link:hover,
.toc__list a:hover {
  color: var(--text);
  background: var(--accent-soft);
  text-decoration: none;
}

.sidebar__link--active,
.toc__list a:hover {
  border-left-color: var(--accent);
  color: var(--accent);
}

.toc__sublist a {
  padding-left: 1.6rem;
  font-size: 0.8rem;
}

/* ---------------------------------------------------------------- prose */

.prose {
  min-width: 0;
  overflow-wrap: break-word;
}

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

.content h1 {
  font-size: clamp(1.65rem, 3vw, 2.15rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

.prose h2,
.section-heading {
  position: relative;
  margin: 2.4rem 0 0.85rem;
  padding-bottom: 0.45rem;
  font-size: 1.4rem;
  border-bottom: 1px solid var(--border-subtle);
  letter-spacing: -0.01em;
}

.prose h2::after,
.section-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 3.5rem;
  height: 2px;
  border-radius: var(--pill);
  background: var(--accent-line);
}

.prose h3 {
  margin: 1.9rem 0 0.6rem;
  font-size: 1.15rem;
  color: color-mix(in srgb, var(--text) 82%, var(--accent));
}

.prose h4 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1rem;
}

.prose p,
.prose ul,
.prose ol,
.prose table,
.prose blockquote,
.prose pre {
  margin: 0 0 1rem;
}

.prose ul,
.prose ol {
  padding-left: 1.5rem;
}

.prose li + li {
  margin-top: 0.25rem;
}

.prose li::marker {
  color: var(--accent-2);
}

.prose blockquote {
  padding: 0.7rem 1.1rem;
  border-left: 3px solid var(--accent-2);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: color-mix(in srgb, var(--accent-2) 8%, transparent);
  color: var(--text-muted);
}

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

.prose hr {
  margin: 2.4rem 0;
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  display: block;
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--border);
}

.prose th,
.prose td {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border);
  text-align: left;
}

.prose th {
  background: linear-gradient(180deg, var(--bg-subtle), color-mix(in srgb, var(--bg-subtle) 70%, var(--accent-soft)));
  font-weight: 600;
}

.prose tbody tr:nth-child(2n) {
  background: color-mix(in srgb, var(--bg-subtle) 55%, transparent);
}

.prose tbody tr:hover {
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}

.prose code {
  padding: 0.15rem 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: color-mix(in srgb, var(--ctp-mauve) 82%, var(--text));
  background: color-mix(in srgb, var(--ctp-mauve) 10%, var(--bg-subtle));
  border: 1px solid color-mix(in srgb, var(--ctp-mauve) 22%, transparent);
  border-radius: var(--radius-sm);
}

.prose pre {
  position: relative;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  line-height: 1.55;
  box-shadow: var(--shadow);
}

.prose pre::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--accent-line);
  opacity: 0.55;
}

.prose pre code {
  padding: 0;
  background: none;
  border: 0;
  color: inherit;
  font-size: inherit;
}

.prose .zola-anchor {
  margin-left: 0.4rem;
  opacity: 0;
  font-size: 0.75em;
  text-decoration: none;
  color: var(--accent);
  transition: opacity 140ms ease;
}

.prose h2:hover .zola-anchor,
.prose h3:hover .zola-anchor,
.prose h4:hover .zola-anchor,
.prose h5:hover .zola-anchor {
  opacity: 1;
}

.prose :target {
  background: var(--accent-soft);
  border-radius: 4px;
}

.hero-logo {
  display: block;
  max-width: 220px;
  width: 100%;
  margin: 0 auto;
  image-rendering: pixelated;
  filter: drop-shadow(0 0 32px color-mix(in srgb, var(--accent) 28%, transparent));
  animation: float 6s ease-in-out infinite;
}

.content .hero {
  position: relative;
  isolation: isolate;
  padding: 2.5rem 0 1rem;
}

.content .hero::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(32rem, 90%);
  height: min(22rem, 90%);
  transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 14%, transparent), transparent);
  filter: blur(24px);
  pointer-events: none;
  z-index: -1;
}

.hero-footer {
  margin-top: 3rem;
  text-align: center;
  opacity: 0.7;
  font-size: 0.85rem;
}

.page-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
}

.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.card__sep {
  opacity: 0.6;
}

.breadcrumbs {
  margin-bottom: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.breadcrumbs a {
  color: var(--text-muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--accent);
}

.breadcrumbs__sep {
  margin: 0 0.35rem;
  opacity: 0.6;
}

.page-edit,
.page-back {
  margin-top: 2rem;
  font-size: 0.85rem;
}

/* ---------------------------------------------------------------- cards */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 1.1rem;
  margin: 1.35rem 0 2rem;
}

.cards--posts {
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.15rem 1.25rem;
  background: linear-gradient(155deg,
      color-mix(in srgb, var(--bg-elevated) 94%, var(--accent) 6%),
      var(--bg-elevated) 55%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: border-color 180ms ease, transform 180ms cubic-bezier(0.2, 0.7, 0.3, 1), box-shadow 180ms ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--accent-line);
  opacity: 0;
  transition: opacity 180ms ease;
}

.card--link {
  color: var(--text);
  text-decoration: none;
}

.card:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.card:hover::before {
  opacity: 1;
}

.card:hover,
.card--link:hover {
  text-decoration: none;
}

.card__title {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  line-height: 1.35;
}

.card__title a {
  color: var(--text);
  text-decoration: none;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
  transition: color 160ms ease, background-size 180ms ease;
}

.card:hover .card__title a,
.card__title a:hover {
  color: var(--accent);
  background-size: 100% 1px;
  text-decoration: none;
}

.card__meta {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.card__excerpt {
  margin: 0 0 0.9rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.card__more {
  margin-top: auto;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: color 160ms ease;
}

.card__more:hover {
  color: var(--ctp-pink);
  text-decoration: none;
}

/* ---------------------------------------------------------------- misc */

.pagination,
.siblings {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  margin: 2rem 0;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.9rem;
}

.pagination__link {
  text-decoration: none;
}

.pagination__link--disabled {
  color: var(--text-muted);
  opacity: 0.55;
}

.pagination__info {
  padding: 0.2rem 0.7rem;
  border-radius: var(--pill);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
}

.siblings__link {
  display: flex;
  flex-direction: column;
  max-width: 48%;
  text-decoration: none;
}

.siblings__link--next {
  margin-left: auto;
  text-align: right;
}

.siblings__label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.siblings__title {
  font-weight: 600;
  color: var(--text);
  transition: color 160ms ease;
}

.siblings__link:hover .siblings__title {
  color: var(--accent);
}

.error-page {
  padding: 3rem 0;
  text-align: center;
}

.error-page__code {
  margin: 0;
  font-size: clamp(3.5rem, 14vw, 7rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  background: var(--hero-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 4px 28px color-mix(in srgb, var(--accent) 22%, transparent));
}

.button {
  display: inline-block;
  padding: 0.6rem 1.15rem;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: var(--accent-contrast);
  border-radius: var(--pill);
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 16px color-mix(in srgb, var(--accent) 28%, transparent);
  transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}

.button:hover {
  color: var(--accent-contrast);
  text-decoration: none;
  transform: translateY(-1px);
  filter: saturate(115%) brightness(1.05);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 38%, transparent);
}

.markdown-alert-note,
.markdown-alert-tip,
.markdown-alert-warning,
.markdown-alert-caution,
.markdown-alert-important {
  padding: 0.8rem 1.1rem;
  border-left-width: 4px;
  border-left-style: solid;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text);
  background: color-mix(in srgb, var(--bg-subtle) 82%, transparent);
}

.markdown-alert-note {
  border-left-color: var(--ctp-blue);
  background: color-mix(in srgb, var(--ctp-blue) 8%, var(--bg-subtle));
}

.markdown-alert-tip {
  border-left-color: var(--ctp-green);
  background: color-mix(in srgb, var(--ctp-green) 8%, var(--bg-subtle));
}

.markdown-alert-warning {
  border-left-color: var(--ctp-yellow);
  background: color-mix(in srgb, var(--ctp-yellow) 9%, var(--bg-subtle));
}

.markdown-alert-caution {
  border-left-color: var(--ctp-red);
  background: color-mix(in srgb, var(--ctp-red) 8%, var(--bg-subtle));
}

.markdown-alert-important {
  border-left-color: var(--ctp-mauve);
  background: color-mix(in srgb, var(--ctp-mauve) 8%, var(--bg-subtle));
}

.footer {
  position: relative;
  border-top: 0;
  background: color-mix(in srgb, var(--bg-subtle) 72%, transparent);
  backdrop-filter: blur(8px);
}

.footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, var(--accent-2), var(--accent), var(--accent-3), transparent 95%);
  opacity: 0.45;
}

.footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.35rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer__meta {
  margin: 0;
}

.footer__link {
  color: var(--text-muted);
  text-decoration: none;
}

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

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

@media print {
  .header,
  .sidebar,
  .toc,
  .footer,
  .siblings,
  .breadcrumbs {
    display: none;
  }

  body {
    background: #ffffff;
  }
}