.shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }
.section { padding-block: var(--space-8); }
.section--surface { background: linear-gradient(180deg, rgba(18,26,36,.86), rgba(13,19,27,.96)); border-block: 1px solid var(--color-border-subtle); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 2.25rem; }
.section-heading h2 { margin-top: .55rem; }
.section-heading > p { max-width: 520px; margin: 0; }
.site-header { position: sticky; top: 0; z-index: 100; min-height: var(--header-height); border-bottom: 1px solid rgba(38,54,74,.78); background: rgba(8,12,17,.88); backdrop-filter: blur(18px); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; width: min(calc(100% - 36px), 1380px); min-height: var(--header-height); margin-inline: auto; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .75rem; min-width: max-content; color: var(--color-text-primary); text-decoration: none; }
.brand__mark { display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--color-border); border-radius: 50%; background: radial-gradient(circle, rgba(57,198,244,.18), rgba(57,198,244,.02)); color: var(--color-accent-primary); }
.brand__mark .icon { width: 24px; height: 24px; }
.brand strong { display: block; font-size: 1rem; line-height: 1.2; letter-spacing: .03em; }
.brand small { display: block; margin-top: .2rem; color: var(--color-text-muted); font: 600 .54rem/1.2 "JetBrains Mono", Consolas, monospace; letter-spacing: .12em; }
.desktop-nav { margin-left: auto; }
.nav-groups { display: flex; align-items: center; gap: .25rem; margin: 0; padding: 0; list-style: none; }
.nav-group { position: relative; }
.nav-group__trigger { padding: .75rem .85rem; border: 0; background: transparent; color: var(--color-text-secondary); cursor: pointer; border-radius: var(--radius-sm); }
.nav-group__trigger::after { content: ""; display: inline-block; width: 6px; height: 6px; margin: 0 0 3px 8px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor; transform: rotate(45deg); }
.nav-group__trigger:hover, .nav-group__trigger[aria-expanded="true"] { background: var(--color-surface); color: var(--color-text-primary); }
.mega-menu { position: absolute; top: calc(100% + 12px); right: 0; display: grid; grid-template-columns: repeat(2, minmax(210px, 1fr)); gap: 1rem; width: 520px; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-raised); box-shadow: var(--shadow-card); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .18s ease, transform .18s ease; }
.nav-group.is-open .mega-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.mega-menu::before { content: ""; position: absolute; top: -13px; left: 0; right: 0; height: 14px; }
.mega-menu > div { display: grid; gap: .15rem; }
.mega-menu a { padding: .7rem .75rem; border-radius: 7px; color: var(--color-text-secondary); text-decoration: none; }
.mega-menu a:hover { background: rgba(57,198,244,.08); color: var(--color-accent-primary); }
.mega-menu__label { padding: .35rem .75rem; color: var(--color-text-muted); font: 700 .66rem/1 "JetBrains Mono", Consolas, monospace; letter-spacing: .12em; }
.mega-menu--compact { grid-template-columns: 1fr; width: 260px; }
.header-actions { display: flex; align-items: center; gap: .55rem; }
.source-state { display: inline-flex; align-items: center; gap: .5rem; padding: .45rem .65rem; border: 1px solid var(--color-border-subtle); border-radius: 999px; color: var(--color-text-muted); font-size: .72rem; text-decoration: none; white-space: nowrap; }
.icon-button { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--color-border); border-radius: 50%; background: var(--color-surface); color: var(--color-text-primary); cursor: pointer; }
.icon-button:hover { border-color: var(--color-accent-primary); color: var(--color-accent-primary); }
.icon-button .icon { width: 20px; height: 20px; }
.menu-toggle { display: none; }
.menu-close-icon { display: none; }
.menu-toggle[aria-expanded="true"] .menu-open-icon { display: none; }
.menu-toggle[aria-expanded="true"] .menu-close-icon { display: block; }
.search-panel { position: absolute; inset: 100% 0 auto; border-bottom: 1px solid var(--color-border); background: rgba(13,19,27,.98); box-shadow: var(--shadow-card); }
.search-panel__inner { padding-block: 1.5rem; }
.search-panel__inner > p { margin-bottom: .7rem; color: var(--color-text-primary); font-weight: 700; }
.mobile-drawer, .drawer-backdrop { display: none; }
.site-footer { padding-top: 4.5rem; border-top: 1px solid var(--color-border); background: #070a0e; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 3rem; }
.footer-grid > div:first-child p { max-width: 480px; margin-top: 1.4rem; }
.footer-grid h2 { margin-bottom: 1rem; color: var(--color-text-muted); font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
.footer-grid a:not(.brand) { display: block; margin: .55rem 0; color: var(--color-text-secondary); text-decoration: none; }
.footer-grid a:hover { color: var(--color-accent-primary); }
.footer-status p { display: flex; align-items: center; gap: .5rem; margin-bottom: .65rem; font-size: .9rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3.5rem; padding-block: 1.3rem; border-top: 1px solid var(--color-border-subtle); color: var(--color-text-muted); font: .72rem/1.4 "JetBrains Mono", Consolas, monospace; }
.archive-hero { position: relative; overflow: hidden; padding: 5.5rem 0 4.5rem; border-bottom: 1px solid var(--color-border-subtle); background: radial-gradient(circle at 85% 20%, rgba(57,198,244,.11), transparent 30%), linear-gradient(135deg, #0d1520, #080c11 65%); }
.archive-hero::after { content: ""; position: absolute; inset: 0; opacity: .14; pointer-events: none; background-image: linear-gradient(rgba(111,231,216,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(111,231,216,.12) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(90deg, transparent, #000 55%); }
.archive-hero .shell { position: relative; z-index: 1; }
.archive-hero h1 { margin: .75rem 0 1rem; }
.archive-hero p { max-width: 740px; margin: 0; font-size: 1.08rem; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: .55rem; margin-bottom: 2.5rem; color: var(--color-text-muted); font-size: .8rem; }
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--color-accent-primary); }
.pagination .nav-links { display: flex; justify-content: center; gap: .45rem; margin-top: 3rem; }
.pagination a, .pagination span { display: grid; place-items: center; min-width: 42px; height: 42px; padding: 0 .65rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); text-decoration: none; }
.pagination .current { border-color: var(--color-accent-primary); background: rgba(57,198,244,.1); color: var(--color-accent-primary); }