:root {
  --canvas: #ffffff;
  --surface: #ffffff;
  --surface-raised: #f5f5f5;
  --surface-soft: #f2f2f2;
  --text: #1b1b1f;
  --text-muted: #5c5c63;
  --border: #d6d6d6;
  --border-strong: #8a8886;
  --accent: #c43e0b;
  --accent-soft: #fff0e8;
  --accent-contrast: #ffffff;
  --link: #a93208;
  --focus: #c43e0b;
  --success: #107c10;
  --warning: #986f0b;
  --danger: #c50f1f;
  --code: #f6f6f6;
  --sidebar: 320px;
  --header: 64px;
  --footer: 44px;
  --control-bg: #ffffff;
  --control-bg-hover: #f2f2f2;
  --control-bg-active: #fff0e8;
  --control-text: #1b1b1f;
  --control-border: #8a8886;
  --popover-bg: #ffffff;
  --popover-border: #8a8886;
  --popover-shadow: 0 8px 24px rgba(0, 0, 0, .18);
  --option-selected-bg: #fff0e8;
  --option-selected-text: #1b1b1f;
  color-scheme: light;
  font-family: "Segoe UI", SegoeUI, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme="light"] {
  --canvas: #ffffff;
  --surface: #ffffff;
  --surface-raised: #f5f5f5;
  --surface-soft: #f2f2f2;
  --text: #1b1b1f;
  --text-muted: #5c5c63;
  --border: #d6d6d6;
  --border-strong: #8a8886;
  --accent: #c43e0b;
  --accent-soft: #fff0e8;
  --accent-contrast: #ffffff;
  --link: #a93208;
  --focus: #c43e0b;
  --code: #f6f6f6;
  color-scheme: light;
}

[data-theme="dark"] {
  --canvas: #171717;
  --surface: #1f1f1f;
  --surface-raised: #292929;
  --surface-soft: #242424;
  --text: #f5f5f5;
  --text-muted: #c6c6c6;
  --border: #454545;
  --border-strong: #777777;
  --accent: #ff7a3b;
  --accent-soft: #422316;
  --accent-contrast: #171717;
  --link: #ff9a68;
  --focus: #ff7a3b;
  --code: #111111;
  --control-bg: #1f1f1f;
  --control-bg-hover: #292929;
  --control-bg-active: #422316;
  --control-text: #f5f5f5;
  --control-border: #777777;
  --popover-bg: #1f1f1f;
  --popover-border: #777777;
  --popover-shadow: 0 8px 24px rgba(0, 0, 0, .45);
  --option-selected-bg: #422316;
  --option-selected-text: #f5f5f5;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; background: var(--canvas); }
body { margin: 0; min-width: 320px; background: var(--canvas); color: var(--text); }
button, input, select { font: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -100px; z-index: 100; padding: 10px 14px; background: var(--text); color: var(--surface); text-decoration: none; }
.skip-link:focus { top: 10px; }

.app-shell { min-height: 100vh; }
.global-header { position: fixed; inset: 0 0 auto var(--sidebar); z-index: 30; height: var(--header); display: flex; align-items: center; padding: 0 24px; background: var(--surface); border-bottom: 1px solid var(--border); }
.global-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.mobile-menu { min-height: 38px; padding: 0 13px; color: var(--text); background: transparent; border: 1px solid transparent; cursor: pointer; }
.mobile-menu:hover { background: var(--surface-raised); border-color: var(--border); }
.mobile-menu { display: none; }
.theme-toggle { display: grid; place-items: center; width: 44px; height: 44px; padding: 0; color: var(--text); background: transparent; border: 1px solid transparent; border-radius: 50%; cursor: pointer; }
.theme-toggle:hover { background: var(--surface-raised); border-color: var(--border); }
.theme-icon { width: 24px; height: 24px; background: currentColor; -webkit-mask: url('/assets/dark-theme-24-regular.svg') center/24px 24px no-repeat; mask: url('/assets/dark-theme-24-regular.svg') center/24px 24px no-repeat; }
.user-button { display: flex; align-items: center; gap: 9px; min-height: 44px; max-width: 260px; padding: 4px 10px 4px 4px; color: var(--text); background: transparent; border: 1px solid transparent; border-radius: 10px; cursor: pointer; }
.user-button:hover { background: var(--surface-raised); border-color: var(--border); }
.user-button > strong { overflow: hidden; max-width: 150px; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
.user-avatar { position: relative; flex: 0 0 auto; width: 34px; height: 34px; overflow: hidden; border-radius: 50%; background: var(--accent); color: var(--accent-contrast); }
.user-avatar > img, .user-avatar > span { position: absolute; inset: 0; width: 100%; height: 100%; }
.user-avatar > img { display: block; object-fit: cover; }
.user-avatar > span { display: grid; place-items: center; font-size: 11px; font-weight: 700; }
.user-chevron { flex: 0 0 auto; color: var(--text-muted); font-size: 16px; line-height: 1; transform: translateY(-1px); }
.user-button[aria-expanded="true"] .user-chevron { transform: rotate(180deg) translateY(1px); }
.account-menu { position: absolute; top: calc(100% - 4px); right: 24px; z-index: 35; width: 220px; padding: 14px; background: var(--surface); border: 1px solid var(--border-strong); box-shadow: 0 8px 24px color-mix(in srgb, #000 22%, transparent); }
.account-menu button { width: 100%; min-height: 44px; padding: 0 12px; color: var(--text); background: var(--surface); border: 0; border-radius: 7px; cursor: pointer; text-align: left; }
.account-menu button:hover, .account-menu button:focus-visible { background: var(--surface-raised); }

.sidebar { position: fixed; inset: 0 auto 0 0; z-index: 40; width: var(--sidebar); display: flex; flex-direction: column; padding: 22px 20px 18px 28px; background: var(--surface-raised); border-right: 1px solid var(--border); }
.sidebar-close { display: none; position: absolute; top: 18px; right: 14px; width: 44px; height: 44px; padding: 0; color: var(--text); background: transparent; border: 1px solid transparent; border-radius: 50%; cursor: pointer; }
.sidebar-close:hover { background: var(--surface-soft); border-color: var(--border); }
.sidebar-close span { display: block; width: 24px; height: 24px; margin: auto; background: currentColor; -webkit-mask: url('/assets/dismiss-24-regular.svg') center/24px 24px no-repeat; mask: url('/assets/dismiss-24-regular.svg') center/24px 24px no-repeat; }
.sidebar-brand { display: flex; align-items: center; gap: 12px; min-height: 48px; margin: 0 0 26px; color: var(--text); text-decoration: none; }
.sidebar-brand img { flex: 0 0 auto; border: 1px solid var(--border); border-radius: 10px; }
.sidebar-brand span { display: grid; gap: 2px; }
.sidebar-brand strong { font-size: 18px; letter-spacing: -.02em; }
.sidebar-brand small { color: var(--text-muted); font-size: 11px; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; }
.search-trigger { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; min-height: 42px; margin: 0 0 22px; padding: 0 12px; color: var(--text-muted); background: var(--surface); border: 1px solid var(--border-strong); border-radius: 2px; cursor: pointer; text-align: left; }
.search-trigger:hover { color: var(--text); border-color: var(--text); }
kbd { padding: 2px 5px; color: var(--text-muted); background: var(--surface-raised); border: 1px solid var(--border); border-radius: 2px; font-size: 10px; }
.doc-nav { overflow-y: auto; padding: 0 6px 30px 0; scrollbar-color: var(--border-strong) transparent; scrollbar-width: thin; }
.nav-group { margin: 0 0 23px; }
.nav-group > span { display: block; padding: 0 12px 8px; color: var(--text-muted); font-size: 12px; font-weight: 650; }
.nav-link { display: block; min-height: 40px; padding: 10px 12px; color: var(--text); border-left: 3px solid transparent; text-decoration: none; font-size: 14px; line-height: 1.35; }
.nav-link:hover { background: var(--surface-soft); text-decoration: underline; text-underline-offset: 3px; }
.nav-link[aria-current="page"] { background: var(--surface-soft); border-left-color: var(--accent); font-weight: 650; }
.public-nav { display: grid; gap: 0; color: var(--text-muted); font-size: 14px; }
.public-nav > * { padding: 11px 12px; border-left: 3px solid transparent; }
.public-nav > :first-child { padding-bottom: 4px; color: var(--text-muted); font-size: 12px; font-weight: 650; }
.public-nav strong { color: var(--text); background: var(--surface-soft); border-left-color: var(--accent); }

.content { min-height: 100vh; margin-left: var(--sidebar); padding: calc(var(--header) + 40px) clamp(34px, 6vw, 104px) calc(var(--footer) + 64px); }
.content-main { width: min(800px, calc(100% - 220px)); }
.breadcrumb { display: flex; align-items: center; gap: 9px; margin-bottom: 42px; color: var(--text-muted); font-size: 14px; }
.breadcrumb a { color: var(--link); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb strong { min-width: 0; overflow: hidden; color: var(--text-muted); font-weight: 400; text-overflow: ellipsis; white-space: nowrap; }
.document-header { margin: 0 0 40px; animation: appear .24s ease both; }
.document-header .eyebrow { margin: 0 0 9px; color: var(--accent); font-size: 12px; font-weight: 650; letter-spacing: .03em; text-transform: uppercase; }
.document h1 { max-width: 760px; margin: 0; font-size: clamp(36px, 4vw, 48px); line-height: 1.12; letter-spacing: -.025em; text-wrap: balance; }
.document-header > p { max-width: 720px; margin: 20px 0 0; color: var(--text-muted); font-size: 18px; line-height: 1.6; }
.document h2 { margin: 50px 0 15px; font-size: clamp(27px, 3vw, 34px); line-height: 1.2; letter-spacing: -.018em; scroll-margin-top: 90px; }
.document h3 { margin: 34px 0 11px; font-size: 21px; line-height: 1.3; scroll-margin-top: 90px; }
.document p, .document li { color: var(--text); font-size: 16px; line-height: 1.7; }
.document strong { color: var(--text); }
.document a { color: var(--link); text-underline-offset: 3px; }
.document ul, .document ol { margin: 16px 0 26px; padding-left: 25px; }
.document li { padding-left: 3px; margin: 7px 0; }
.document blockquote { margin: 26px 0; padding: 14px 20px; background: var(--accent-soft); border-left: 4px solid var(--accent); }
.document blockquote p { margin: 0; }
.document pre { overflow-x: auto; margin: 24px 0; padding: 18px; background: var(--code); color: var(--text); border: 1px solid var(--border); border-radius: 2px; font: 14px/1.65 "Cascadia Code", Consolas, monospace; }
.document code:not(pre code) { padding: 2px 5px; background: var(--surface-raised); color: var(--text); border: 1px solid var(--border); border-radius: 2px; font: 13px/1.4 "Cascadia Code", Consolas, monospace; }
.table-wrap { overflow-x: auto; margin: 24px 0 34px; border: 1px solid var(--border); }
.document table { width: 100%; border-collapse: collapse; font-size: 14px; }
.document th, .document td { padding: 13px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.document th { background: var(--surface-raised); font-weight: 650; }
.document td { line-height: 1.55; }
.check-item { list-style: none; margin-left: -24px !important; }
.check-item::before { content: ""; display: inline-block; width: 14px; height: 14px; margin: 0 10px -2px 0; border: 1px solid var(--border-strong); }
.theme-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 30px 0 42px; }
.theme-figure { margin: 0; }
.theme-figure img { display: block; width: 100%; aspect-ratio: 16/10; object-fit: cover; border: 1px solid var(--border); border-radius: 6px; transition: transform .16s ease, box-shadow .16s ease; }
.theme-figure img:hover { transform: translateY(-2px); box-shadow: 0 3px 10px color-mix(in srgb, var(--text) 15%, transparent); }
.theme-figure figcaption { display: flex; justify-content: space-between; gap: 8px; padding: 9px 1px; color: var(--text-muted); font-size: 12px; }
.theme-figure strong { color: var(--text); }
.on-this-page { position: fixed; top: calc(var(--header) + 42px); right: max(24px, 3vw); width: 180px; padding-left: 20px; border-left: 1px solid var(--border); }
.on-this-page > span { display: block; margin-bottom: 12px; font-size: 13px; font-weight: 650; }
.on-this-page a { display: block; padding: 5px 0; color: var(--text-muted); text-decoration: none; font-size: 12px; line-height: 1.4; }
.on-this-page a:hover { color: var(--link); text-decoration: underline; }

.eyebrow { color: var(--accent); font-size: 13px; font-weight: 650; letter-spacing: .06em; }
.auth-content { width: min(800px, calc(100% - 220px)); }
.auth-document { max-width: 720px; }
.access-section { margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--border); }
.access-section h2 { margin-top: 0; }
.access-section > p { max-width: 560px; color: var(--text-muted); }
.primary-button { display: inline-flex; align-items: center; justify-content: center; min-width: 132px; min-height: 46px; margin-top: 12px; padding: 0 20px; background: var(--accent); color: var(--accent-contrast); border: 1px solid var(--accent); border-radius: 2px; text-decoration: none; font-size: 15px; font-weight: 650; transition: background-color .14s ease, transform .14s ease; }
.document .primary-button { color: var(--accent-contrast); }
.primary-button:hover { background: color-mix(in srgb, var(--accent) 86%, black); transform: translateY(-1px); }
.auth-status { display: block; margin-top: 14px; color: var(--text-muted); font-size: 13px; line-height: 1.45; }

.search-dialog { width: min(720px, calc(100vw - 32px)); max-height: min(700px, calc(100vh - 40px)); padding: 0; color: var(--text); background: var(--surface); border: 1px solid var(--border-strong); border-radius: 3px; box-shadow: 0 12px 40px color-mix(in srgb, #000 30%, transparent); }
.search-dialog::backdrop { background: color-mix(in srgb, #000 45%, transparent); }
.search-box { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; padding: 15px; border-bottom: 1px solid var(--border); }
.search-box label { display: block; }
.search-box input { width: 100%; min-height: 44px; padding: 8px 12px; color: var(--text); background: var(--surface); border: 1px solid var(--border-strong); font-size: 16px; }
.search-box button { min-height: 36px; padding: 0 12px; color: var(--text); background: var(--surface-raised); border: 1px solid var(--border); cursor: pointer; }
.search-results { overflow-y: auto; max-height: 540px; padding: 8px; }
.search-result { display: block; padding: 14px; color: var(--text-muted); border-bottom: 1px solid var(--border); text-decoration: none; }
.search-result:hover { background: var(--surface-raised); }
.search-result strong { display: block; margin-bottom: 5px; color: var(--text); font-size: 15px; }
.search-result small { font-size: 13px; line-height: 1.5; }
.empty-search { padding: 42px 20px; color: var(--text-muted); text-align: center; }
.confirm-dialog { width: min(430px, calc(100vw - 32px)); padding: 0; color: var(--text); background: var(--surface); border: 1px solid var(--border-strong); border-radius: 3px; box-shadow: 0 12px 40px color-mix(in srgb, #000 30%, transparent); }
.confirm-dialog::backdrop { background: color-mix(in srgb, #000 45%, transparent); }
.confirm-dialog form { padding: 26px; }
.confirm-dialog h2 { margin: 0 0 12px; font-size: 24px; }
.confirm-dialog p { margin: 0 0 24px; color: var(--text-muted); line-height: 1.5; }
.confirm-dialog form > div { display: flex; justify-content: flex-end; gap: 10px; }
.confirm-dialog button { min-height: 40px; padding: 0 16px; color: var(--text); background: var(--surface-raised); border: 1px solid var(--border-strong); cursor: pointer; }
.confirm-dialog .danger-button { background: var(--danger); color: #fff; border-color: var(--danger); }
.footerbar { position: fixed; inset: auto 0 0 var(--sidebar); z-index: 45; min-height: var(--footer); display: flex; align-items: center; justify-content: flex-end; gap: 18px; padding: 0 24px; color: var(--text-muted); background: var(--surface); border-top: 1px solid var(--border); font-size: 12px; }
.footerbar a { color: var(--link); font-weight: 650; text-decoration: none; }
.footerbar a:hover { text-decoration: underline; text-underline-offset: 3px; }
.release-dialog { width: min(720px, calc(100vw - 32px)); max-height: min(760px, calc(100vh - 40px)); padding: 0; color: var(--text); background: var(--surface); border: 1px solid var(--border-strong); border-radius: 14px; box-shadow: var(--popover-shadow); }
.release-dialog::backdrop { background: color-mix(in srgb, #000 45%, transparent); }
.release-dialog-header { position: sticky; top: 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 24px; background: var(--surface); border-bottom: 1px solid var(--border); }
.release-dialog-header h2 { margin: 0; font-size: 24px; }
.release-dialog-header button { min-height: 40px; padding: 0 14px; color: var(--control-text); background: var(--control-bg); border: 1px solid var(--control-border); border-radius: 8px; cursor: pointer; }
.release-dialog-content { padding: 0 24px 28px; }
.release-dialog-content section { padding: 26px 0; border-bottom: 1px solid var(--border); }
.release-dialog-content section:last-child { border-bottom: 0; }
.release-dialog-content h3 { margin: 8px 0 14px; font-size: 20px; }
.release-dialog-content li { margin: 7px 0; line-height: 1.5; }
.update-dialog { width: min(560px, calc(100vw - 32px)); padding: 0; color: var(--text); background: var(--surface); border: 1px solid var(--border-strong); border-radius: 14px; box-shadow: var(--popover-shadow); }
.update-dialog::backdrop { background: color-mix(in srgb, #000 52%, transparent); }
.update-dialog-content { padding: 28px; }
.update-dialog-content h2 { margin: 8px 0 18px; font-size: 28px; }
.update-dialog-content li { margin: 8px 0; line-height: 1.5; }
.update-dialog-content > p:not(.eyebrow) { color: var(--text-muted); }

@keyframes appear { from { opacity: 0; transform: translateY(6px); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }

@media (max-width: 1120px) {
  .content-main { width: 100%; }
  .on-this-page { display: none; }
  .theme-gallery { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .mobile-menu { display: block; margin-right: 10px; }
  .global-header { left: 0; }
  .sidebar-close { display: grid; place-items: center; }
  .sidebar { transform: translateX(-102%); transition: transform .2s ease; box-shadow: 16px 0 35px color-mix(in srgb, #000 24%, transparent); }
  body.menu-open .sidebar { transform: translateX(0); }
  .content { margin-left: 0; padding: calc(var(--header) + 32px) 24px 70px; }
  .footerbar { left: 0; }
  .auth-content { width: 100%; }
}

@media (max-width: 560px) {
  :root { --header: 56px; }
  .global-header { padding: 0 10px; }
  .user-button { min-height: 42px; padding-right: 2px; }
  .user-button > strong, .user-chevron { display: none; }
  .account-menu { right: 10px; }
  .footerbar { gap: 12px; padding: 0 12px; }
  .content { padding-left: 18px; padding-right: 18px; }
  .breadcrumb { margin-bottom: 30px; font-size: 13px; }
  .document h1 { font-size: clamp(34px, 11vw, 44px); }
  .document-header > p { font-size: 17px; }
  .document h2 { margin-top: 42px; }
  .theme-gallery { grid-template-columns: 1fr; }
  .access-section { margin-top: 38px; }
}