:root {
  --accent: #920afb;
  --bg: #07132f;
  --bg-2: #08162f;
  --panel: #0a1731;
  --panel-2: #0d1b37;
  --line: rgba(255, 255, 255, 0.08);
  --line-soft: rgba(255, 255, 255, 0.06);
  --text: #edf2ff;
  --muted: #9fb0d4;
  --muted-2: #7f91b8;
  --topbar: rgba(7, 19, 47, 0.96);
  --button: rgba(255, 255, 255, 0.045);
  --button-hover: rgba(255, 255, 255, 0.08);
  --shell-width: 1440px;
  --sidebar-width: 320px;
  --toc-width: 280px;
  --header-height: 72px;
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.22);
  --ease: 0.22s ease;
}

:root[data-theme='light'] {
  --accent: #920afb;
  --bg: #f7f8fc;
  --bg-2: #ffffff;
  --panel: #ffffff;
  --panel-2: #fbfbff;
  --line: rgba(20, 30, 60, 0.1);
  --line-soft: rgba(20, 30, 60, 0.07);
  --text: #19233d;
  --muted: #536482;
  --muted-2: #7584a1;
  --topbar: rgba(255, 255, 255, 0.94);
  --button: rgba(18, 24, 39, 0.045);
  --button-hover: rgba(18, 24, 39, 0.08);
  --shadow: 0 20px 44px rgba(34, 52, 92, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 48% 6%, rgba(146, 10, 251, 0.18), transparent 22%),
    radial-gradient(circle at 71% 7%, rgba(79, 120, 255, 0.12), transparent 16%),
    var(--bg);
}

body.nav-open {
  overflow: hidden;
}

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

img {
  max-width: 100%;
  display: block;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: var(--topbar);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  width: min(calc(100% - 24px), var(--shell-width));
  height: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr auto;
  align-items: center;
  gap: 28px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.mobile-nav-btn {
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--button);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  color: var(--text);
  cursor: pointer;
}

.mobile-nav-btn span {
  width: 15px;
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
}

.topbar-spacer {
  min-height: 1px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle,
.store-link,
.support-link {
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  transition: transform var(--ease), border-color var(--ease), background var(--ease), color var(--ease), opacity var(--ease);
}

.theme-toggle {
  min-width: auto;
  padding: 0 2px;
  gap: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  box-shadow: none;
  cursor: pointer;
}

.theme-toggle:hover,
.store-link:hover,
.support-link:hover {
  transform: translateY(-1px);
}

.theme-icon {
  font-size: 18px;
  line-height: 1;
}

.theme-label {
  display: none;
}

.store-link,
.support-link {
  min-width: 92px;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid var(--line);
}

.store-link {
  background: var(--button);
  color: var(--text);
}

.support-link {
  background: linear-gradient(180deg, #3a84ff, #2b6dff);
  border-color: rgba(255, 255, 255, 0.08);
  color: white;
}

.store-link:hover {
  border-color: rgba(146, 10, 251, 0.35);
}

.theme-toggle:hover {
  opacity: 0.8;
}

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

.docs-layout {
  width: min(100%, var(--shell-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--toc-width);
  min-height: calc(100vh - var(--header-height));
}

.sidebar {
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  border-right: 1px solid var(--line);
}

.sidebar-scroll {
  height: 100%;
  overflow: auto;
  padding: 22px 18px 32px 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(146, 10, 251, 0.35) transparent;
}

.sidebar-nav {
  display: grid;
  gap: 10px;
  padding-right: 10px;
}

.nav-group {
  display: grid;
  gap: 2px;
}

.nav-group-toggle {
  width: 100%;
  min-height: 32px;
  padding: 0 8px;
  background: transparent;
  border: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.nav-group.is-open .nav-group-toggle {
  border: 1px solid rgba(146, 10, 251, 0.24);
  border-radius: 10px;
  padding: 0 12px;
  min-height: 40px;
  background: linear-gradient(180deg, rgba(146, 10, 251, 0.16), rgba(255, 255, 255, 0.01));
}

.nav-chevron {
  font-size: 11px;
  color: var(--muted-2);
  transition: transform var(--ease), opacity var(--ease);
}

.nav-group.is-open .nav-chevron {
  transform: rotate(180deg);
}

.nav-group-panel {
  overflow: hidden;
  display: grid;
  gap: 0;
  margin-left: 14px;
  padding-left: 14px;
  border-left: 1px solid var(--line-soft);
  max-height: 0;
  opacity: 0;
  transform: translateY(-6px);
  transition: max-height 0.24s ease, opacity 0.18s ease, transform 0.2s ease;
}

.nav-link {
  padding: 7px 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  transition: color var(--ease), opacity var(--ease);
}

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

.nav-link.active {
  color: #3791ff;
  font-weight: 700;
}

.nav-link.filtered-out {
  display: none;
}

.content-shell {
  min-width: 0;
  padding: 52px 56px 88px;
}

.doc-article {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
}

.page-header {
  padding: 6px 0 12px;
}

.page-kicker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-header h1 {
  margin: 0;
  font-size: clamp(44px, 5.2vw, 59px);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.page-header p {
  margin: 18px 0 0;
  max-width: 700px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.doc-section {
  padding: 34px 0;
  border-top: 1px solid var(--line-soft);
}

.doc-section:first-of-type {
  border-top: 0;
  padding-top: 28px;
}

.doc-section h2 {
  margin: 0 0 16px;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.doc-section p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.section-image-wrap {
  margin-top: 18px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  box-shadow: var(--shadow);
}

.section-image {
  width: 100%;
  height: auto;
  display: block;
}

.doc-list {
  margin: 10px 0 0 18px;
  padding: 0;
  color: var(--muted);
}

.doc-list li {
  margin: 0 0 8px;
  line-height: 1.65;
}

.docs-inline-link {
  color: #338bff;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  transition: color var(--ease), opacity var(--ease);
}

.docs-inline-link:hover {
  color: #5aa3ff;
  text-decoration: underline;
}

.doc-steps {
  margin: 16px 0 0;
  padding-left: 22px;
  color: var(--text);
}

.doc-step {
  margin: 0 0 20px;
}

.step-title {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
}

.step-title strong {
  font-weight: 800;
}

.step-sub {
  margin: 10px 0 0 18px;
  padding-left: 18px;
  color: var(--muted);
  list-style: circle;
}

.step-sub li {
  margin: 0 0 10px;
  line-height: 1.7;
}

.step-sub code {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--text);
}

.red {
  color: #ff4d4f;
  font-weight: 700;
}

.code-block {
  position: relative;
  display: block;
  margin-top: 8px;
  padding: 14px 48px 14px 14px;
  background: rgba(10, 20, 42, 0.72);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

:root[data-theme='light'] .code-block {
  background: rgba(20, 30, 60, 0.04);
  border-color: var(--line);
}

.code-block code {
  display: block;
  margin: 0;
  color: var(--text);
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
  background: transparent !important;
  border: 0 !important;
  padding: 0 !important;
  border-radius: 0 !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.code-block.multi {
  padding: 16px 48px 16px 16px;
  margin-top: 10px;
}

.code-block.multi pre {
  margin: 0;
  overflow: auto;
}

.inline-code-block {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 6px;
  vertical-align: middle;
}

.after-code {
  margin-top: 12px;
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 30px;
  height: 30px;
  border: 0;
  outline: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.code-block:hover .copy-btn {
  opacity: 1;
  pointer-events: auto;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.14);
}

:root[data-theme='light'] .copy-btn {
  background: rgba(20, 30, 60, 0.06);
}

:root[data-theme='light'] .copy-btn:hover {
  background: rgba(20, 30, 60, 0.12);
}

.copy-icon,
.copy-check {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 14px;
  line-height: 1;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.copy-icon {
  opacity: 1;
  transform: scale(1);
}

.copy-check {
  opacity: 0;
  transform: scale(0.75);
}

.copy-btn.copied .copy-icon {
  opacity: 0;
  transform: scale(0.75);
}

.copy-btn.copied .copy-check {
  opacity: 1;
  transform: scale(1);
}

.doc-footer {
  margin-top: 20px;
  padding: 24px 0 10px;
  border-top: 1px solid var(--line);
}

.doc-footer-top {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.footer-card {
  min-height: 92px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  display: grid;
  gap: 4px;
  align-content: center;
  position: relative;
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.footer-card:hover {
  transform: translateY(-1px);
  border-color: rgba(146, 10, 251, 0.28);
}

.footer-card-label {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #338bff;
}

.footer-card strong {
  font-size: 20px;
  letter-spacing: -0.03em;
}

.footer-card-arrow {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted-2);
  font-size: 24px;
}

.doc-footer-bottom {
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.footer-brand p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.footer-links a {
  color: #338bff;
  font-weight: 700;
  font-size: 14px;
}

.toc {
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  width: 100%;
  border-left: 1px solid var(--line);
  padding: 48px 32px 80px;
}

.toc-inner {
  position: sticky;
  top: 96px;
}

.toc h3 {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.04em;
  font-weight: 800;
}

.toc-nav {
  position: relative;
  display: grid;
  gap: 4px;
  padding-left: 16px;
}

.toc-nav::before {
  content: '';
  position: absolute;
  left: 0;
  top: 2px;
  bottom: 2px;
  width: 1px;
  background: var(--line-soft);
}

.toc-indicator {
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  border-radius: 999px;
  background: #2f7cff;
  opacity: 0;
  will-change: transform, height;
  transition: transform 0.22s ease, height 0.22s ease, opacity 0.18s ease;
}

.toc-link {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.35;
  padding: 6px 0 6px 16px;
  transition: color var(--ease), transform var(--ease);
}

.toc-link.active {
  color: #2f7cff;
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 12, 28, 0.62);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--ease);
  z-index: 35;
}

.mobile-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 1280px) {
  :root {
    --shell-width: 100%;
    --sidebar-width: 290px;
    --toc-width: 250px;
  }

  .topbar-inner {
    width: calc(100% - 24px);
  }

  .content-shell {
    padding: 48px 40px 80px;
  }
}

@media (max-width: 1100px) {
  :root {
    --sidebar-width: 270px;
    --toc-width: 220px;
  }

  .content-shell {
    padding: 44px 32px 72px;
  }

  .doc-article {
    max-width: 760px;
  }
}

@media (max-width: 920px) {
  :root {
    --sidebar-width: 286px;
  }

  .topbar-inner {
    grid-template-columns: auto 1fr auto;
    gap: 14px;
  }

  .mobile-nav-btn {
    display: inline-flex;
  }

  .docs-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: var(--header-height);
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: var(--bg-2);
    transform: translateX(-100%);
    transition: transform var(--ease);
    z-index: 45;
    box-shadow: var(--shadow);
  }

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

  .content-shell {
    padding: 32px 22px 64px;
  }

  .doc-article {
    max-width: 100%;
  }

  .toc {
    display: none;
  }
}

@media (max-width: 700px) {
  .topbar-actions .store-link {
    display: none;
  }

  .topbar-actions {
    gap: 8px;
  }

  .support-link {
    min-width: 84px;
    padding: 0 14px;
  }

  .page-header h1 {
    font-size: 38px;
  }

  .doc-section h2 {
    font-size: 20px;
  }

  .doc-footer-top {
    grid-template-columns: 1fr;
  }

  .doc-footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}