/*
Theme Name: Базис
Theme URI: https://basisseldon.ru/
Description: Справочник школьной математики — «миллиметровка и красная ручка»: тёплая бумага с тонкой сеткой, чернильно-синие SVG-чертежи фигур, жёлтый маркер главной формулы, красная ручка поправок. Jura + Merriweather Sans + STIX Two Text. Калькуляторы [calc], чертежи [chertezh], таблицы [tablica].
Version: 1.0.1
Author: Редакция «Базиса»
Text Domain: bazis
*/

:root {
	--paper: #f6f5ef;
	--card: #fffefa;
	--ink: #182033;
	--ink-2: #3d4659;
	--mute: #6a7183;
	--blue: #2350a8;
	--blue-2: #e7eefb;
	--red: #c93a26;
	--red-2: #fbece8;
	--marker: #ffd84d;
	--marker-2: #fff4c2;
	--grid: #dfe5ee;
	--line: #d8d5c9;
	--dark: #131a2a;
	--fig-fill: #e3ebf8;
	--fig-top: #d2def2;
	--fig-side: #c3d2ec;
	--r: 10px;
	--f-head: 'BzQ', 'Jura', 'Trebuchet MS', sans-serif;
	--f-text: 'BzQ', 'Merriweather Sans', 'Segoe UI', Arial, sans-serif;
	--f-math: 'STIX Two Text', 'Cambria Math', 'Times New Roman', serif;
	--wrap: 1180px;
}

/* ёлочки из системного шрифта: у Merriweather Sans и Jura они похожи на «<<» */
@font-face { font-family: 'BzQ'; src: local('Arial'), local('Helvetica'), local('Roboto'), local('DejaVu Sans'); unicode-range: U+00AB, U+00BB, U+201E, U+201C; }
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 76px; }
body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font: 400 17px/1.7 var(--f-text);
	-webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--blue); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--red); }
h1, h2, h3, h4 { font-family: var(--f-head); font-weight: 700; line-height: 1.2; letter-spacing: -.005em; margin: 0; }
button, input, select { font: inherit; color: inherit; }
.screen-reader-text { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.bz-skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 6px; z-index: 99; }
.bz-skip:focus { left: 12px; }
.bz-wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 24px; }
.bz-narrow { max-width: 800px; }
.bz-mid { max-width: 1000px; }
.bz-i { flex: none; vertical-align: -0.2em; }

/* миллиметровка */
.bz-hero, .bz-arch__band, .bz-art__head {
	background-color: var(--paper);
	background-image:
		linear-gradient(var(--grid) 1px, transparent 1px),
		linear-gradient(90deg, var(--grid) 1px, transparent 1px),
		linear-gradient(rgba(223, 229, 238, .45) 1px, transparent 1px),
		linear-gradient(90deg, rgba(223, 229, 238, .45) 1px, transparent 1px);
	background-size: 40px 40px, 40px 40px, 8px 8px, 8px 8px;
	background-position: -1px -1px;
}

/* ---------- Шапка ---------- */
.bz-head { position: sticky; top: 0; z-index: 30; background: rgba(246, 245, 239, .96); backdrop-filter: blur(6px); border-bottom: 2px solid var(--ink); }
.bz-head__in { display: flex; align-items: center; gap: 22px; min-height: 64px; }
.bz-logo { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; flex: none; }
.bz-logo:hover { color: var(--ink); }
.bz-logo__t { font: 700 25px/1 var(--f-head); letter-spacing: .01em; display: flex; flex-direction: column; }
.bz-logo__t small { font: 500 11px/1.3 var(--f-head); color: var(--mute); letter-spacing: .08em; text-transform: uppercase; margin-top: 3px; }
.bz-nav { flex: 1; min-width: 0; }
.bz-nav__list { display: flex; flex-wrap: wrap; gap: 2px 4px; list-style: none; margin: 0; padding: 0; justify-content: flex-end; }
.bz-nav__list a { display: block; padding: 6px 9px; font: 700 16px/1.2 var(--f-head); letter-spacing: .02em; color: var(--ink); text-decoration: none; border-radius: 6px; }
.bz-nav__list a:hover, .bz-nav__list .current-menu-item > a { background: var(--marker-2); color: var(--ink); box-shadow: inset 0 -3px 0 var(--marker); }
.bz-head__tools { display: flex; gap: 6px; align-items: center; }
.bz-pop { position: relative; }
.bz-pop > summary { list-style: none; cursor: pointer; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 8px; border: 1.5px solid var(--line); background: var(--card); }
.bz-pop > summary::-webkit-details-marker { display: none; }
.bz-pop[open] > summary { border-color: var(--ink); }
.bz-pop__box { position: absolute; right: 0; top: 50px; background: var(--card); border: 2px solid var(--ink); border-radius: var(--r); padding: 14px; width: min(360px, calc(100vw - 32px)); box-shadow: 6px 6px 0 rgba(24, 32, 51, .12); }
.bz-pop--menu { display: none; }
.bz-pop__h { margin: 0 0 6px; font: 700 13px/1 var(--f-head); text-transform: uppercase; letter-spacing: .08em; color: var(--mute); }
.bz-pop__list { list-style: none; margin: 0; padding: 0; columns: 2; }
.bz-pop__list a { display: block; padding: 8px 4px; font: 700 17px/1.2 var(--f-head); letter-spacing: .02em; color: var(--ink); text-decoration: none; }
.bz-search { display: flex; gap: 8px; }
.bz-search input { flex: 1; min-width: 0; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: 8px; background: #fff; }
.bz-search input:focus { outline: 2px solid var(--blue); border-color: transparent; }
.bz-search button { border: 0; border-radius: 8px; padding: 10px 16px; background: var(--ink); color: #fff; font: 700 15px/1 var(--f-head); cursor: pointer; }

/* ---------- Общие секции ---------- */
.bz-main { display: block; }
.bz-sec { padding: 44px 0; }
.bz-sec--tint { background: #efede4; border-block: 1px solid var(--line); }
.bz-sec__top { display: flex; align-items: baseline; justify-content: space-between; gap: 8px 20px; flex-wrap: wrap; margin-bottom: 20px; }
.bz-sec__h { display: flex; align-items: center; gap: 10px; font-size: 28px; }
.bz-sec__h .bz-i { color: var(--blue); }
.bz-sec__sub { margin: 0; color: var(--mute); font-size: 15px; }
.bz-kicker { margin: 0 0 10px; font: 700 13px/1.2 var(--f-head); letter-spacing: .1em; text-transform: uppercase; color: var(--blue); }
.bz-kicker--hl { color: var(--ink); display: inline-block; background: var(--marker); padding: 3px 8px; border-radius: 4px; }
.bz-more { display: inline-flex; gap: 6px; align-items: center; font: 700 15px/1 var(--f-head); text-decoration: none; }
.bz-lnk { font-weight: 600; }
.bz-lnk.is-soon, .is-soon .bz-lnk { color: var(--mute); font-weight: 400; cursor: default; }
.bz-soon { display: inline-block; font: 700 11px/1 var(--f-head); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); border: 1px dashed var(--mute); border-radius: 4px; padding: 4px 6px; }
code.bz-f, .bz-f { font: 400 1.08em/1.3 var(--f-math); font-style: normal; background: var(--blue-2); color: var(--ink); padding: .08em .38em; border-radius: 4px; white-space: nowrap; }

/* ---------- Главная: первый экран ---------- */
.bz-hero { border-bottom: 1px solid var(--line); }
.bz-hero__in { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 40px; align-items: center; padding-block: 48px; }
.bz-hero__h1 { font-size: clamp(30px, 4.2vw, 48px); line-height: 1.12; }
.bz-hero__lead { margin: 16px 0 22px; font-size: 18px; color: var(--ink-2); max-width: 36em; }
.bz-hero__quick { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.bz-pill { display: inline-block; padding: 8px 14px; border: 1.5px solid var(--ink); border-radius: 999px; background: var(--card); color: var(--ink); text-decoration: none; font: 600 15px/1.1 var(--f-head); }
a.bz-pill:hover { background: var(--marker); color: var(--ink); }
.bz-pill.is-soon { border-style: dashed; border-color: var(--mute); color: var(--mute); }

/* ---------- Калькулятор ---------- */
.bz-calc { background: var(--card); border: 2px solid var(--ink); border-radius: 14px; padding: 18px 20px 20px; box-shadow: 6px 6px 0 rgba(35, 80, 168, .14); margin: 26px 0; display: grid; grid-template-columns: 1fr 180px; gap: 4px 18px; }
.bz-hero .bz-calc { margin: 0; }
.bz-calc__head { grid-column: 1; }
.bz-calc__k { margin: 0; font: 700 12px/1 var(--f-head); letter-spacing: .12em; text-transform: uppercase; color: var(--red); }
.bz-calc__t { margin: 4px 0 0; font: 700 21px/1.2 var(--f-head); }
.bz-calc__fig { grid-column: 2; grid-row: 1 / span 2; align-self: start; }
.bz-calc__ui { grid-column: 1; }
.bz-calc noscript { grid-column: 1 / -1; }
.bz-calc__tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 4px; }
.bz-calc__tab { border: 1.5px solid var(--line); background: #fff; border-radius: 999px; padding: 6px 12px; font: 600 14px/1.1 var(--f-head); cursor: pointer; }
.bz-calc__tab.is-on { background: var(--ink); color: #fff; border-color: var(--ink); }
.bz-calc__f { margin: 12px 0 10px; font: 400 20px/1.35 var(--f-math); background: linear-gradient(transparent 55%, var(--marker) 55%); display: inline; padding: 0 4px; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.bz-calc__fields { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin-top: 14px; }
.bz-calc__field { display: grid; grid-template-columns: 1fr auto; grid-template-rows: auto auto; gap: 3px 6px; align-items: center; }
.bz-calc__lab { grid-column: 1 / -1; font-size: 13px; color: var(--ink-2); line-height: 1.3; }
.bz-calc__field input { width: 100%; padding: 9px 10px; border: 1.5px solid var(--line); border-radius: 8px; background: #fff; font: 400 19px/1.1 var(--f-math); }
.bz-calc__field input:focus { outline: 2px solid var(--blue); border-color: transparent; }
.bz-calc__u { font: 400 16px/1 var(--f-math); color: var(--mute); min-width: 1.4em; }
.bz-calc__unit { display: inline-flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 13px; color: var(--ink-2); }
.bz-calc__unit select { padding: 5px 8px; border: 1.5px solid var(--line); border-radius: 8px; background: #fff; }
.bz-calc__out { margin-top: 14px; border-top: 1.5px dashed var(--line); padding-top: 12px; }
.bz-calc__steps { margin: 0 0 8px; font: 400 17px/1.45 var(--f-math); color: var(--ink-2); overflow-wrap: anywhere; }
.bz-calc__res { margin: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; }
.bz-calc__res div { display: flex; gap: 8px; align-items: baseline; }
.bz-calc__res dt { font: 400 17px/1 var(--f-math); font-style: italic; color: var(--mute); }
.bz-calc__res dd { margin: 0; font: 600 20px/1.2 var(--f-math); }
.bz-calc__res .is-main dd { font-size: 27px; color: var(--blue); }
.bz-calc__msg { margin: 6px 0 0; font-size: 14px; color: var(--ink-2); }
.bz-calc__msg.is-err { color: var(--red); }

/* ---------- Чертежи ---------- */
.bz-svg { display: block; width: 100%; height: auto; overflow: visible; }
.bz-svg .s { fill: var(--fig-fill); stroke: var(--ink); stroke-width: 2.2; stroke-linejoin: round; }
.bz-svg .s--top { fill: var(--fig-top); }
.bz-svg .s--side { fill: var(--fig-side); }
.bz-svg .s--line { fill: none; }
.bz-svg .s--bold { stroke: var(--red); stroke-width: 3.4; }
.bz-svg .d { fill: none; stroke: var(--blue); stroke-width: 1.6; stroke-dasharray: 6 4; }
.bz-svg .d--mid { stroke: var(--red); }
.bz-svg .h { fill: none; stroke: var(--mute); stroke-width: 1.4; stroke-dasharray: 3 4; }
.bz-svg .m { fill: none; stroke: var(--ink); stroke-width: 1.4; }
.bz-svg .p { fill: var(--red); }
.bz-svg .t { font: italic 400 19px/1 var(--f-math); fill: var(--red); }
.bz-fig { margin: 24px auto; max-width: 420px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 16px 20px 10px; }
.bz-fig figcaption { font-size: 14px; color: var(--mute); text-align: center; margin-top: 6px; }

/* ---------- Главная: матрица фигур ---------- */
.bz-matrix { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border-top: 1.5px solid var(--ink); border-left: 1.5px solid var(--ink); }
.bz-tile { border-right: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink); background: var(--card); padding: 12px 12px 14px; display: flex; flex-direction: column; }
.bz-tile__fig { display: block; padding: 4px 6px 8px; }
.bz-tile__n { margin: 0 0 4px; font: 700 16px/1.2 var(--f-head); }
.bz-tile__l { margin: 0; display: flex; flex-direction: column; gap: 1px; font-size: 14px; line-height: 1.45; }
.bz-tile:hover { background: var(--marker-2); }

/* ---------- Главная: таблицы ---------- */
.bz-tabs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.bz-tabcard > a, .bz-tabcard.is-soon { display: flex; flex-direction: column; gap: 8px; height: 100%; padding: 16px; background: var(--card); border: 1.5px solid var(--line); border-radius: var(--r); text-decoration: none; color: var(--ink); }
.bz-tabcard > a:hover { border-color: var(--ink); box-shadow: 4px 4px 0 var(--marker); }
.bz-tabcard__f { font: 400 21px/1.2 var(--f-math); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bz-tabcard__n { font: 700 15px/1.2 var(--f-head); color: var(--blue); }
.bz-tabcard.is-soon { opacity: .6; border-style: dashed; }
.bz-tabcard.is-soon .bz-tabcard__n { color: var(--mute); }

/* ---------- Главная: две колонки ---------- */
.bz-two { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.bz-two .bz-sec__h { margin-bottom: 14px; }
.bz-flist { list-style: none; margin: 0; padding: 0; border-top: 1.5px solid var(--ink); }
.bz-flist li { display: flex; justify-content: space-between; align-items: baseline; gap: 6px 16px; flex-wrap: wrap; padding: 11px 0; border-bottom: 1px solid var(--line); }
.bz-flist .bz-f { white-space: normal; font-size: 16px; }

/* поправка зануды */
.bz-nit { position: relative; margin: 28px 0; padding: 14px 18px 14px 20px; background: var(--red-2); border-left: 4px solid var(--red); border-radius: 0 var(--r) var(--r) 0; }
.bz-nit p { margin: 0; }
.bz-nit .bz-nit__h { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; font: 700 14px/1.2 var(--f-head); letter-spacing: .06em; text-transform: uppercase; color: var(--red); }
.bz-nit--home { margin-top: 24px; transform: rotate(-.6deg); }

/* ---------- Наука ---------- */
.bz-sci { background: var(--dark); color: #e8ebf3; padding: 48px 0; background-image: radial-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px); background-size: 22px 22px; }
.bz-sci .bz-sec__h { color: #fff; }
.bz-sci .bz-sec__h .bz-i { color: var(--marker); }
.bz-sci .bz-more { color: var(--marker); }
.bz-sci__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.bz-sci__it { border: 1px solid rgba(255, 255, 255, .18); border-radius: var(--r); padding: 18px; }
.bz-sci__it h3 { font-size: 20px; margin-bottom: 8px; color: #fff; }
.bz-sci__it h3 a { color: #fff; text-decoration: none; }
.bz-sci__it h3 a:hover { color: var(--marker); }
.bz-sci__it p { margin: 0 0 10px; font-size: 15px; line-height: 1.55; color: #b9c0d0; }
.bz-sci .bz-soon { color: #9aa3b8; border-color: #6f7890; }

/* ---------- Карточки ---------- */
.bz-grid { display: grid; gap: 22px; }
.bz-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.bz-card { display: flex; flex-direction: column; background: var(--card); border: 1.5px solid var(--line); border-radius: var(--r); overflow: hidden; }
.bz-card:hover { border-color: var(--ink); }
.bz-card__cover { display: block; }
.bz-cover { display: block; aspect-ratio: 16 / 9; background: var(--blue-2); overflow: hidden; }
.bz-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bz-cover--none { display: grid; place-items: center; color: var(--blue); background-color: var(--paper); background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 16px 16px; }
.bz-cover--none .bz-svg { width: 58%; }
.bz-card__body { padding: 14px 16px 18px; }
.bz-card__cat { font: 700 12px/1 var(--f-head); letter-spacing: .1em; text-transform: uppercase; text-decoration: none; color: var(--red); }
.bz-card__t { font-size: 20px; margin: 8px 0 6px; }
.bz-card__t a { color: var(--ink); text-decoration: none; }
.bz-card__t a:hover { color: var(--blue); }
.bz-card__x { margin: 0; font-size: 15px; line-height: 1.55; color: var(--ink-2); }

/* ---------- Архив ---------- */
.bz-arch { padding-bottom: 48px; }
.bz-arch__band { border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.bz-arch__head { display: flex; gap: 18px; align-items: flex-start; padding-block: 36px 30px; }
.bz-arch__ic { flex: none; width: 60px; height: 60px; display: grid; place-items: center; background: var(--ink); color: var(--marker); border-radius: 12px; }
.bz-arch__h1 { font-size: clamp(30px, 4vw, 42px); }
.bz-arch__d { margin-top: 10px; color: var(--ink-2); max-width: 44em; }
.bz-arch__d p { margin: 0; }
.bz-arch__find { max-width: 560px; margin-bottom: 18px; }
.bz-arch__n { color: var(--mute); }
.bz-chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0 0 26px; padding: 0; }
.bz-chip { display: inline-block; padding: 7px 13px; border: 1.5px solid var(--line); border-radius: 999px; font: 600 15px/1 var(--f-head); color: var(--ink); text-decoration: none; background: var(--card); }
.bz-chip:hover, .bz-chip.is-on { border-color: var(--ink); background: var(--marker); color: var(--ink); }
.bz-empty { color: var(--mute); }
.nav-links { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 30px; }
.nav-links .page-numbers { padding: 8px 13px; border: 1.5px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--ink); background: var(--card); }
.nav-links .current { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- Статья ---------- */
.bz-art__head { border-bottom: 1px solid var(--line); padding: 34px 0 26px; margin-bottom: 26px; }
.bz-art--page .bz-art__head { background: none; border: 0; padding-bottom: 0; }
.bz-art__cat { display: inline-flex; gap: 7px; align-items: center; font: 700 13px/1 var(--f-head); letter-spacing: .1em; text-transform: uppercase; text-decoration: none; color: var(--red); }
.bz-art__h1 { font-size: clamp(30px, 4.4vw, 44px); margin: 12px 0 14px; }
.bz-art__meta { display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 0; font-size: 14px; color: var(--mute); }
.bz-art__cover { margin: 0 auto 26px; }
.bz-art__cover img { width: 100%; border-radius: var(--r); display: block; }
.bz-art__upd { display: flex; gap: 8px; align-items: center; font-size: 14px; color: var(--mute); margin: 34px 0 18px; }
.bz-toc { border: 1.5px solid var(--ink); border-radius: var(--r); background: var(--card); margin-bottom: 28px; }
.bz-toc summary { cursor: pointer; padding: 12px 16px; font: 700 16px/1.2 var(--f-head); display: flex; justify-content: space-between; gap: 12px; }
.bz-toc summary small { color: var(--mute); font-weight: 500; }
.bz-toc ol { margin: 0; padding: 0 20px 14px 38px; }
.bz-toc li { margin: 4px 0; }

.bz-prose { font-size: 17.5px; }
.bz-prose > * + * { margin-top: 1em; }
.bz-prose p { margin: 0; }
.bz-prose * + p { margin-top: 1em; }
.bz-prose h2 { font-size: 29px; margin: 46px 0 14px; padding-top: 6px; border-top: 2px solid var(--ink); }
.bz-prose h3 { font-size: 22px; margin: 30px 0 10px; }
.bz-prose h4 { font-size: 19px; margin: 24px 0 8px; }
.bz-prose ul, .bz-prose ol { padding-left: 1.3em; margin: 1em 0; }
.bz-prose li + li { margin-top: .35em; }
.bz-prose li::marker { color: var(--blue); }
.bz-prose blockquote { margin: 1.4em 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--blue); color: var(--ink-2); }
.bz-prose pre { background: var(--card); border: 1.5px solid var(--line); border-left: 4px solid var(--marker); border-radius: 8px; padding: 14px 18px; overflow-x: auto; }
.bz-prose pre code { font: 400 20px/1.5 var(--f-math); background: none; padding: 0; white-space: pre-wrap; }
.bz-prose img { border-radius: var(--r); display: block; }
.bz-prose figure { margin: 26px 0; }
.bz-prose figcaption { font-size: 14px; color: var(--mute); margin-top: 6px; }
.bz-prose code.bz-f { white-space: normal; }
/* отдельная строка-формула: абзац из одной формулы */
.bz-prose p.bz-fline { text-align: center; }
.bz-prose p.bz-fline > code.bz-f { display: inline-block; max-width: 100%; margin: 4px auto; padding: 10px 18px; font-size: 1.3em; background: var(--card); border: 1.5px solid var(--line); border-radius: 8px; text-align: center; box-shadow: inset 0 -6px 0 var(--marker-2); }
.bz-short { margin: 0 0 28px; padding: 18px 20px; background: var(--card); border: 2px solid var(--ink); border-radius: var(--r); box-shadow: 5px 5px 0 var(--marker); }
.bz-short__h { margin: 0 0 8px !important; font: 700 13px/1 var(--f-head); letter-spacing: .12em; text-transform: uppercase; color: var(--blue); }
.bz-short > * + * { margin-top: .7em; }
.bz-short p.bz-fline > code.bz-f { box-shadow: none; background: var(--marker-2); border-color: var(--marker); }
ul.bz-errs { list-style: none; padding: 0; }
ul.bz-errs li { position: relative; padding: 10px 14px 10px 42px; background: var(--card); border: 1px solid var(--line); border-radius: 8px; }
ul.bz-errs li::before { content: '✗'; position: absolute; left: 14px; top: 9px; color: var(--red); font-weight: 700; }
.bz-table, .bz-tbl { overflow-x: auto; margin: 22px 0; -webkit-overflow-scrolling: touch; }
.bz-prose table, .bz-tbl table { border-collapse: collapse; width: 100%; font-size: 15.5px; background: var(--card); }
.bz-prose th, .bz-prose td, .bz-tbl th, .bz-tbl td { border: 1px solid var(--line); padding: 8px 11px; text-align: left; vertical-align: top; }
.bz-prose thead th, .bz-tbl thead th { background: var(--ink); color: #fff; font: 700 14px/1.3 var(--f-head); border-color: var(--ink); }
.bz-prose tbody tr:nth-child(even) td { background: #faf9f4; }
.bz-tbl caption, .bz-tbl__cap { caption-side: top; text-align: left; font: 700 15px/1.3 var(--f-head); padding: 0 0 8px; margin: 0; }
.bz-tbl td, .bz-tbl tbody th { font: 400 16.5px/1.3 var(--f-math); text-align: right; white-space: nowrap; }
.bz-tbl tbody th { background: var(--blue-2); font-weight: 600; text-align: center; }
.bz-tbl--grid td { text-align: center; padding: 7px 6px; }
.bz-tbl--grid td:hover { background: var(--marker); }
.bz-tbl__corner { font-size: 11px !important; white-space: nowrap; }
.bz-tbl--mul td.is-diag { background: var(--marker-2); font-weight: 600; }
.bz-tbl--trig td { text-align: center; }
.bz-tbl--pairs tbody th { width: 1%; }
.bz-tbl__note { font-size: 14px; color: var(--mute); margin: 8px 0 0; }
.bz-tbl--primes ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(52px, 1fr)); gap: 4px; }
.bz-tbl--primes li { margin: 0 !important; text-align: center; padding: 5px 0; background: var(--card); border: 1px solid var(--line); border-radius: 5px; font: 400 16px/1.2 var(--f-math); }
.bz-auth { display: flex; gap: 16px; align-items: flex-start; padding: 18px; background: var(--card); border: 1.5px solid var(--line); border-radius: var(--r); margin-bottom: 40px; }
.bz-auth__av { flex: none; width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--marker); font: 700 24px/1 var(--f-head); }
.bz-auth p { margin: 0; font-size: 15px; color: var(--ink-2); }
.bz-auth .bz-auth__h { font: 700 17px/1.3 var(--f-head); color: var(--ink); margin-bottom: 4px; }
.bz-auth__more { margin-top: 6px !important; }
.bz-slot { margin: 26px 0; }
.bz-sec--line { border-top: 1px solid var(--line); }

/* ---------- Подвал ---------- */
.bz-foot { border-top: 2px solid var(--ink); padding: 26px 0 30px; margin-top: 20px; }
.bz-foot__in { display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center; justify-content: space-between; }
.bz-foot__brand { display: flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font: 700 19px/1 var(--f-head); }
.bz-foot__links { display: flex; gap: 6px 18px; flex-wrap: wrap; margin: 0; font-size: 15px; }
.bz-foot__links a { color: var(--ink-2); }
.bz-foot__copy { flex-basis: 100%; margin: 0; font-size: 13px; color: var(--mute); }

/* ---------- Адаптив ---------- */
@media (max-width: 1120px) {
	.bz-nav { display: none; }
	.bz-pop--menu { display: block; }
	.bz-head__tools { margin-left: auto; }
	.bz-matrix { grid-template-columns: repeat(4, minmax(0, 1fr)); }
	.bz-tabs { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 920px) {
	.bz-hero__in { grid-template-columns: 1fr; gap: 26px; padding-block: 34px; }
	.bz-two { grid-template-columns: 1fr; gap: 34px; }
	.bz-sci__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.bz-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.bz-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
	.bz-matrix { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
	body { font-size: 16px; }
	.bz-wrap { padding-inline: 16px; }
	.bz-head__in { min-height: 56px; gap: 10px; }
	.bz-logo__t { font-size: 21px; }
	.bz-logo__mark { width: 32px; height: 32px; }
	.bz-sec { padding: 32px 0; }
	.bz-sec__h { font-size: 23px; }
	.bz-hero__lead { font-size: 16px; }
	.bz-calc { grid-template-columns: 1fr; padding: 14px; }
	.bz-calc__fig { grid-column: 1; grid-row: auto; max-width: 180px; justify-self: center; order: -1; }
	.bz-calc__head { order: -2; }
	.bz-calc__fields { grid-template-columns: 1fr 1fr; }
	.bz-matrix { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.bz-tile { padding: 10px; }
	.bz-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
	.bz-tabcard > a, .bz-tabcard.is-soon { padding: 12px; }
	.bz-tabcard__f { font-size: 17px; }
	.bz-sci__list, .bz-grid--3 { grid-template-columns: 1fr; }
	.bz-prose { font-size: 16.5px; }
	.bz-prose h2 { font-size: 24px; }
	.bz-prose p.bz-fline { text-align: center; }
.bz-prose p.bz-fline > code.bz-f { width: auto; font-size: 1.15em; }
	.bz-arch__head { padding-block: 26px 22px; }
	.bz-arch__ic { width: 46px; height: 46px; }
	.bz-pop__list { columns: 1; }
	.bz-foot__in { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 560px) {
	.bz-tile__fig { padding: 0 0 4px; }
	.bz-tile__fig .bz-svg { height: 62px; width: auto; }
	.bz-tile__n { font-size: 15px; }
	.bz-tile__l { font-size: 13.5px; }
}