.landing-shell{--landing-sidebar-width:210px;--landing-hover-bg:#ffffff0f;--landing-active-bg:#0070c02e;--landing-rail-shadow:8px 0 24px -12px #000000a6;background:var(--color-bg);min-height:100vh;color:var(--color-text)}html[data-theme=light] .landing-shell{--landing-hover-bg:#0000000d;--landing-active-bg:#0070c01f;--landing-rail-shadow:8px 0 24px -12px #10182838}.landing-sidebar{z-index:20;width:var(--landing-sidebar-width);background:var(--color-surface);border:1px solid var(--color-border);min-height:100vh;box-shadow:var(--landing-rail-shadow);border-left:0;border-radius:0 18px 18px 0;flex-direction:column;padding:24px 14px;display:flex;position:fixed;inset:0 auto 0 0;overflow:hidden auto}.landing-sidebar__bar{flex:none;justify-content:center;align-items:center;display:flex}.landing-sidebar__logo{transition:opacity var(--transition-fast);justify-content:center;align-items:center;display:flex}.landing-sidebar__logo:hover{opacity:.8}.landing-sidebar__logo-img{width:auto;height:39px}.landing-sidebar__logo-img--light,html[data-theme=light] .landing-sidebar__logo-img--dark{display:none}html[data-theme=light] .landing-sidebar__logo-img--light{display:block}.landing-sidebar__burger{border-radius:var(--radius-sm);cursor:pointer;width:40px;height:40px;transition:background-color var(--transition-fast);background:0 0;border:none;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:5px;margin-left:auto;padding:0;display:none}.landing-sidebar__burger:hover{background-color:var(--landing-hover-bg)}.landing-sidebar__burger:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.landing-sidebar__burger[aria-expanded=true] .burger__line:first-child{transform:translateY(7px)rotate(45deg)}.landing-sidebar__burger[aria-expanded=true] .burger__line:nth-child(2){opacity:0;transform:scaleX(0)}.landing-sidebar__burger[aria-expanded=true] .burger__line:nth-child(3){transform:translateY(-7px)rotate(-45deg)}.landing-sidebar__panel{flex-direction:column;flex:auto;margin-top:28px;display:flex}.landing-sidebar__logo-divider{background:var(--color-border);border-radius:99px;height:3px;margin:0 0 24px}.landing-sidebar__nav{flex-direction:column;gap:6px;display:flex}.landing-sidebar__group{flex-direction:column;gap:6px;margin-top:10px;display:flex}.landing-sidebar__group-title{letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-secondary);border:1px solid #0000;align-items:center;gap:12px;padding:0 12px;font-size:.72rem;font-weight:700;display:flex}.landing-sidebar__icon{color:currentColor;flex:0 0 20px;justify-content:center;align-items:center;width:20px;height:20px;display:flex}.landing-sidebar__icon svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.landing-sidebar__icon--group svg{width:16px;height:16px}.landing-sidebar__link{min-height:44px;color:var(--color-text-secondary);transition:background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);border:1px solid #0000;border-radius:12px;align-items:center;gap:12px;padding:10px 12px;font-size:.875rem;font-weight:600;line-height:1.25;display:flex}.landing-sidebar__link--child{min-height:40px;margin-left:12px;font-size:.84rem}.landing-sidebar__link:hover{background:var(--landing-hover-bg);color:var(--color-text)}.landing-sidebar__link--active{background:var(--landing-active-bg);border-color:var(--color-accent);color:var(--color-text)}.landing-sidebar__link:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.landing-sidebar__bottom{border-top:1px solid var(--color-border);flex-direction:column;align-items:stretch;gap:10px;margin-top:auto;padding-top:20px;display:flex}.landing-sidebar__theme{justify-content:center;display:flex}.landing-main{min-height:calc(100vh - var(--landing-bar-height,0px));min-height:calc(100svh - var(--landing-bar-height,0px));margin-left:var(--landing-sidebar-width)}.landing-main section[id]{scroll-margin-top:88px}.landing-splash{min-height:calc(100vh - var(--landing-bar-height,0px));min-height:calc(100svh - var(--landing-bar-height,0px));text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:clamp(20px,3vh,36px);padding:clamp(24px,6vh,72px) clamp(16px,4vw,40px) clamp(96px,12vh,144px);display:flex}.landing-splash__logo{width:min(72vw,900px);margin:0}.landing-splash__logo-img{width:100%;height:auto}.landing-splash__logo-img--light,html[data-theme=light] .landing-splash__logo-img--dark{display:none}html[data-theme=light] .landing-splash__logo-img--light{display:block}.landing-splash__note{color:var(--color-text-secondary);margin:0;font-size:clamp(.875rem,1.1vw,1rem);line-height:1.5}.landing-footer-slot{height:0;overflow:visible}.landing-main .site-footer{background:var(--color-surface);border:1px solid var(--color-border);border-bottom:0;border-radius:16px 16px 0 0;margin:0 clamp(16px,4vw,40px);padding:14px 12px;transform:translateY(-100%)}.landing-page-header-slot{z-index:15;height:0;position:sticky;top:0;overflow:visible}.landing-page-header{background:var(--color-surface);border:1px solid var(--color-border);border-top:0;border-radius:0 0 16px 16px;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin:0 clamp(16px,4vw,40px);padding:8px 12px;display:grid;box-shadow:0 8px 16px -8px #0000008c}html[data-theme=light] .landing-page-header{box-shadow:0 8px 16px -8px #1018282e}.landing-page-header__nav{flex-wrap:wrap;grid-column:2;justify-content:center;gap:6px;display:flex}.landing-page-header__cta{grid-column:3;justify-self:end;min-height:36px;margin-right:20px;font-size:.86rem}.landing-page-header__link{color:var(--color-text-secondary);white-space:nowrap;transition:background-color var(--transition-fast), color var(--transition-fast);border-radius:10px;padding:8px 14px;font-size:.86rem;font-weight:600}.landing-page-header__link:hover{background:var(--landing-hover-bg);color:var(--color-text)}.landing-page-header__link.is-active{background:var(--landing-active-bg);color:var(--color-text)}.landing-page-header__link:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.landing-page-header-toggle{background:var(--color-surface);border:1px solid var(--color-border);width:calc(100% - 2*clamp(16px,4vw,40px));height:26px;color:var(--color-text-secondary);cursor:pointer;transition:color var(--transition-fast);border-top:0;border-radius:0 0 14px 14px;justify-content:center;align-items:center;margin:0 clamp(16px,4vw,40px);padding:0;display:none;box-shadow:0 8px 16px -8px #0000008c}html[data-theme=light] .landing-page-header-toggle{box-shadow:0 8px 16px -8px #1018282e}.landing-page-header-toggle:hover,.landing-page-header-toggle:focus-visible{color:var(--color-text)}.landing-page-header-toggle:focus-visible{outline:2px solid var(--color-accent);outline-offset:-2px}.landing-page-header-toggle__icon{width:48px;height:10px;transition:transform var(--transition-fast)}.landing-page-header-toggle.is-collapsed .landing-page-header-toggle__icon{transform:rotate(180deg)}@media (max-width:860px){.landing-shell{--landing-bar-height:65px}.landing-sidebar{border:0;border-bottom:1px solid var(--color-border);border-radius:0 0 18px 18px;width:auto;min-height:auto;padding:12px 16px;position:sticky;inset:0 auto auto;box-shadow:0 8px 24px -12px #000000a6}.landing-sidebar__bar{justify-content:flex-start}.landing-sidebar__burger{display:flex}.landing-sidebar__panel{margin-top:12px;display:none}.landing-sidebar.is-open .landing-sidebar__panel{max-height:calc(100vh - 96px);display:flex;overflow-y:auto}.landing-sidebar__logo-divider{margin-bottom:16px}.landing-main{margin-left:0}.landing-main section[id]{scroll-margin-top:72px}.landing-page-header{grid-template-columns:1fr;gap:8px}.landing-page-header__nav,.landing-page-header__cta{grid-column:1}.landing-page-header__cta{justify-self:center;margin-right:0}.landing-page-header-slot{top:var(--landing-bar-height)}.landing-page-header-toggle{display:flex}.landing-page-header.is-collapsed .landing-page-header__nav{display:none}.landing-page-header.is-collapsed{padding-top:6px;padding-bottom:6px}}