:root { --hc-accent: #57a7ff; --hc-radius: 14px; }
[data-bs-theme="dark"] { --hc-bg: #121212; --hc-surface: #1b1b1d; --hc-border: #2b2b2f; --hc-muted: #a3a3aa; --bs-body-bg: #121212; }
[data-bs-theme="light"] { --hc-bg: #f7f8fa; --hc-surface: #ffffff; --hc-border: #e3e5ea; --hc-muted: #5f6570; --bs-body-bg: #f7f8fa; }

body { background: var(--hc-bg); font-feature-settings: "kern"; -webkit-font-smoothing: antialiased; }
a { color: var(--hc-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.text-secondary { color: var(--hc-muted) !important; }
.btn-primary { --bs-btn-bg: var(--hc-accent); --bs-btn-border-color: var(--hc-accent); --bs-btn-hover-bg: #3d95f5; --bs-btn-hover-border-color: #3d95f5; --bs-btn-color: #0b1320; --bs-btn-hover-color: #0b1320; font-weight: 600; }
.skip-link { position: absolute; left: 1rem; top: .5rem; z-index: 10; background: var(--hc-surface); padding: .4rem .7rem; border-radius: 8px; }

/* Header / footer */
.hc-nav { border-bottom: 1px solid var(--hc-border); background: var(--hc-surface); padding: .7rem 0 0; position: sticky; top: 0; z-index: 5; }
.hc-switcher { margin-top: .55rem; }
.hc-switcher ul { display: flex; gap: .25rem; list-style: none; margin: 0; padding: 0; overflow-x: auto; scrollbar-width: none; }
.hc-switcher ul::-webkit-scrollbar { display: none; }
.hc-switcher a { display: flex; align-items: center; gap: .4rem; padding: .45rem .75rem .55rem; color: var(--hc-muted); font-size: .9rem; font-weight: 550; white-space: nowrap; border-bottom: 2px solid transparent; }
.hc-switcher a:hover { color: inherit; text-decoration: none; }
.hc-switcher a[aria-current="page"] { color: var(--hc-accent); border-bottom-color: var(--hc-accent); }
.hc-brand { display: flex; align-items: center; gap: .6rem; color: inherit; }
.hc-brand:hover { text-decoration: none; }
.hc-logo { height: 26px; width: auto; }
[data-bs-theme="dark"] .hc-logo-light, [data-bs-theme="light"] .hc-logo-dark { display: none; }
.hc-brand-sub { font-weight: 600; padding-left: .6rem; border-left: 1px solid var(--hc-border); color: var(--hc-muted); }
.hc-nav-search { position: relative; align-items: center; width: min(360px, 40vw); }
.hc-nav-search i { position: absolute; left: .75rem; color: var(--hc-muted); pointer-events: none; }
.hc-nav-search input { width: 100%; padding: .4rem .75rem .4rem 2.1rem; border-radius: 999px; border: 1px solid var(--hc-border); background: var(--hc-bg); color: inherit; }
.hc-nav-search input:focus, .hc-hero-search input:focus { outline: 2px solid var(--hc-accent); outline-offset: 1px; }
.hc-footer { border-top: 1px solid var(--hc-border); margin-top: 4rem; padding: 1.5rem 0; color: var(--hc-muted); font-size: .9rem; }
.hc-footer a { color: var(--hc-muted); }

/* Home */
.hc-hero { padding: 4rem 0 3rem; text-align: center; background: radial-gradient(1200px 300px at 50% 0, rgba(87,167,255,.14), transparent); }
.hc-hero h1 { font-weight: 700; font-size: clamp(1.9rem, 4vw, 2.8rem); letter-spacing: -.02em; }
.hc-hero-search { position: relative; display: flex; gap: .5rem; max-width: 640px; margin: 1.5rem auto 0; }
.hc-hero-search i { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--hc-muted); }
.hc-hero-search input { flex: 1; padding: .8rem 1rem .8rem 2.6rem; border-radius: 12px; border: 1px solid var(--hc-border); background: var(--hc-surface); color: inherit; font-size: 1.05rem; }
.hc-hero-search .btn { border-radius: 12px; padding-inline: 1.3rem; }
.hc-search-page { margin: 0; max-width: 720px; }
.hc-section { margin-top: 2.5rem; }
.hc-h2 { font-size: 1.15rem; font-weight: 700; margin-bottom: 1rem; }
.hc-cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1rem; }
.hc-cat { display: flex; flex-direction: column; gap: .35rem; padding: 1.2rem; border: 1px solid var(--hc-border); border-radius: var(--hc-radius); background: var(--hc-surface); color: inherit; transition: border-color .15s, transform .15s; }
.hc-cat:hover { text-decoration: none; border-color: var(--hc-accent); transform: translateY(-2px); }
.hc-cat i { font-size: 1.5rem; color: var(--hc-accent); }
.hc-cat-title { font-weight: 650; }
.hc-cat-desc { color: var(--hc-muted); font-size: .9rem; flex: 1; }
.hc-cat-count { color: var(--hc-muted); font-size: .8rem; }

/* Lists */
.hc-list { list-style: none; padding: 0; margin: 0; border: 1px solid var(--hc-border); border-radius: var(--hc-radius); background: var(--hc-surface); overflow: hidden; }
.hc-list li + li { border-top: 1px solid var(--hc-border); }
.hc-list a { display: flex; flex-direction: column; gap: .15rem; padding: .9rem 1.1rem; color: inherit; }
.hc-list a:hover { text-decoration: none; background: rgba(87,167,255,.07); }
.hc-list-title { font-weight: 600; color: var(--hc-accent); }
.hc-list-sum { color: var(--hc-muted); font-size: .9rem; }
.hc-list-compact a { padding: .7rem 1rem; }

/* Pages */
.hc-page { padding-top: 1.5rem; }
.hc-crumbs { display: flex; flex-wrap: wrap; gap: .4rem; list-style: none; padding: 0; margin: 0 0 1.25rem; font-size: .9rem; color: var(--hc-muted); }
.hc-crumbs li + li::before { content: "›"; margin-right: .4rem; }
.hc-crumbs a { color: var(--hc-muted); }
.hc-page-head { display: flex; gap: 1rem; align-items: center; margin-bottom: 1.5rem; }
.hc-page-head h1 { font-weight: 700; margin: 0; }
.hc-page-icon { font-size: 2.2rem; color: var(--hc-accent); }
.hc-empty { text-align: center; padding: 3rem 1rem; }
.hc-empty > i { font-size: 2.5rem; color: var(--hc-muted); }

/* Article */
.hc-article h1 { font-weight: 750; letter-spacing: -.02em; font-size: clamp(1.7rem, 3.2vw, 2.3rem); }
.hc-lede { font-size: 1.1rem; color: var(--hc-muted); margin-top: .5rem; }
.hc-meta { font-size: .85rem; color: var(--hc-muted); }
.hc-body { font-size: 1.04rem; line-height: 1.7; margin-top: 1.5rem; }
.hc-body h2 { font-size: 1.35rem; font-weight: 700; margin-top: 2.2rem; scroll-margin-top: 130px; }
.hc-body h3 { font-size: 1.1rem; font-weight: 650; margin-top: 1.6rem; scroll-margin-top: 130px; }
.hc-body img { max-width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--hc-border); }
.hc-body code { background: rgba(127,127,127,.15); padding: .1rem .35rem; border-radius: 6px; color: inherit; font-size: .9em; }
.hc-body pre { background: var(--hc-surface); border: 1px solid var(--hc-border); border-radius: 10px; padding: 1rem; }
.hc-body pre code { background: none; padding: 0; }
.hc-body kbd { background: var(--hc-surface); border: 1px solid var(--hc-border); border-bottom-width: 2px; border-radius: 6px; padding: .05rem .45rem; font-size: .85em; color: inherit; box-shadow: none; }
.hc-body table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .95rem; }
.hc-body th, .hc-body td { border: 1px solid var(--hc-border); padding: .5rem .7rem; vertical-align: top; }
.hc-body th { background: var(--hc-surface); }
.hc-body blockquote { border-left: 3px solid var(--hc-accent); padding: .4rem 1rem; margin: 1rem 0; background: var(--hc-surface); border-radius: 0 10px 10px 0; color: inherit; }
.hc-body blockquote p:last-child { margin-bottom: 0; }
.hc-toc, .hc-toc-side, .hc-related { border: 1px solid var(--hc-border); border-radius: var(--hc-radius); background: var(--hc-surface); padding: 1rem 1.1rem; margin-top: 1rem; }
.hc-toc-side { position: sticky; top: 128px; }
.hc-toc summary, .hc-aside-title { font-weight: 650; font-size: .9rem; margin-bottom: .5rem; }
.hc-toc ul, .hc-toc-side ul { list-style: none; padding: 0; margin: 0; font-size: .92rem; }
.hc-toc li, .hc-toc-side li { padding: .2rem 0; }
.hc-toc .lvl-3, .hc-toc-side .lvl-3 { padding-left: .9rem; }
.hc-related { margin-top: 1rem; padding-bottom: .5rem; }
.hc-related .hc-list { border: 0; background: none; }
.hc-related .hc-list a { padding: .5rem 0; }
.hc-feedback { margin-top: 3rem; padding: 1.2rem; border: 1px solid var(--hc-border); border-radius: var(--hc-radius); background: var(--hc-surface); }
.hc-feedback-form { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.hc-product-tag { display: inline-block; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--hc-muted); }
.hc-product-grid .hc-cat i { font-size: 1.7rem; }
.hc-empty-inline { border: 1px dashed var(--hc-border); border-radius: var(--hc-radius); padding: 2rem 1.25rem; text-align: center; color: var(--hc-muted); }
.hc-empty-inline > i { display: block; font-size: 2rem; margin-bottom: .5rem; }