@font-face {
font-family: 'Onest';
font-style: normal;
font-weight: 400;
font-display: swap;
src: url(/fonts/onest-400-normal-cyrillic.woff2) format('woff2');
unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
font-family: 'Onest';
font-style: normal;
font-weight: 400;
font-display: swap;
src: url(/fonts/onest-400-normal-latin.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Onest';
font-style: normal;
font-weight: 500;
font-display: swap;
src: url(/fonts/onest-500-normal-cyrillic.woff2) format('woff2');
unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
font-family: 'Onest';
font-style: normal;
font-weight: 500;
font-display: swap;
src: url(/fonts/onest-500-normal-latin.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
font-family: 'Onest';
font-style: normal;
font-weight: 700;
font-display: swap;
src: url(/fonts/onest-700-normal-cyrillic.woff2) format('woff2');
unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
font-family: 'Onest';
font-style: normal;
font-weight: 700;
font-display: swap;
src: url(/fonts/onest-700-normal-latin.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* Размер А4. Идея: лист бумаги на макетном коврике. Фон — зелёный коврик с сеткой 1 см (в масштабе экрана),
контент — белый лист с метками обреза. Главная картинка — лист А0, разрезанный пополам восемь раз, в точных пропорциях.
Пурпурный — как триадный magenta в типографии: им размечено только то, что нужно найти глазами. Onest. */
:root{
--mat:#2f5b4d; --mat-line:rgba(255,255,255,.09); --mat-line-strong:rgba(255,255,255,.16); --mat-ink:#e6efe9;
--paper:#fff; --ink:#1d1f1c; --muted:#5d625c; --line:#e3e5e0; --tint:#f4f5f2; --mag:#c4006a;
--wrap:1180px; --pad:clamp(10px,3vw,40px); --cm:37.795px;
--font:"Onest",-apple-system,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);font:400 17px/1.6 var(--font);font-variant-numeric:tabular-nums;
background-color:var(--mat);
background-image:linear-gradient(var(--mat-line-strong) 1px,transparent 1px),linear-gradient(90deg,var(--mat-line-strong) 1px,transparent 1px),linear-gradient(var(--mat-line) 1px,transparent 1px),linear-gradient(90deg,var(--mat-line) 1px,transparent 1px);
background-size:calc(var(--cm) * 5) calc(var(--cm) * 5),calc(var(--cm) * 5) calc(var(--cm) * 5),var(--cm) var(--cm),var(--cm) var(--cm)}
a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--mag);text-decoration-thickness:1.5px;text-underline-offset:3px}
a:hover{color:var(--mag)}
:focus-visible{outline:3px solid var(--mag);outline-offset:2px}
.skip{position:absolute;left:-9999px;top:8px;background:#fff;color:var(--ink);padding:8px 12px;z-index:9}.skip:focus{left:8px}
.head,.page-sheet,.foot{width:min(100% - 2 * var(--pad),var(--wrap));margin-left:auto;margin-right:auto}
.head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 28px;padding:22px 4px 18px;color:var(--mat-ink)}
.brand{display:inline-flex;align-items:center;gap:12px;color:#fff;text-decoration:none;font-weight:700;font-size:20px;letter-spacing:-.01em}
.brand-sheet{width:17px;height:24px;background:#fff;box-shadow:inset 0 -12px 0 -11px var(--mat)}
.nav{display:flex;flex-wrap:wrap;gap:4px 22px}
.nav a{color:var(--mat-ink);text-decoration:none;font-size:16px;padding:4px 0;border-bottom:2px solid transparent}
.nav a:hover{color:#fff;border-color:rgba(255,255,255,.4)}
.nav a[aria-current]{color:#fff;border-color:#fff}
/* Лист с метками обреза */
.page-sheet{position:relative;display:block;background:var(--paper);padding:clamp(20px,4vw,56px) clamp(18px,5vw,64px) clamp(28px,4vw,56px);box-shadow:0 1px 0 rgba(0,0,0,.12),0 10px 30px -12px rgba(0,0,0,.35)}
.page-sheet::before,.page-sheet::after{content:"";position:absolute;width:12px;height:12px;pointer-events:none}
.page-sheet::before{top:-20px;left:-20px;border-right:1px solid var(--mat-ink);border-bottom:1px solid var(--mat-ink);transform:translate(-1px,-1px)}
.page-sheet::after{bottom:-20px;right:-20px;border-left:1px solid var(--mat-ink);border-top:1px solid var(--mat-ink)}
main:focus{outline:0}
.crumbs{font-size:14.5px;color:var(--muted);margin-bottom:6px}
.crumbs a{color:var(--muted);text-decoration-color:var(--line)}
h1{font-weight:700;font-size:clamp(28px,3.6vw,42px);line-height:1.12;letter-spacing:-.02em;margin:.2em 0 .5em;text-wrap:balance}
h2{font-weight:700;font-size:clamp(22px,2.4vw,27px);line-height:1.2;letter-spacing:-.01em;margin:1.9em 0 .55em}
p{margin:0 0 1em;max-width:40em;text-wrap:pretty}
.lead{font-size:clamp(17.5px,1.6vw,19px);line-height:1.55}
.src{font-size:15px;color:var(--muted)}
/* Первый экран */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px clamp(28px,5vw,64px);align-items:center;padding-bottom:clamp(20px,3vw,36px);border-bottom:1px solid var(--line)}
.size{font-weight:500;font-size:clamp(52px,6.4vw,92px);line-height:.95;letter-spacing:-.045em;margin:.1em 0 .1em;white-space:nowrap;max-width:none}
.size .x{font-weight:400;color:var(--mag);margin:0 .08em;font-size:.7em;vertical-align:.08em}
.size .u{font-size:.24em;font-weight:500;letter-spacing:0;color:var(--muted);margin-left:.3em}
.size-sub{font-size:19px;margin:0 0 1.2em}
.hero-pic{margin:0}
.hero-pic figcaption{font-size:14.5px;color:var(--muted);margin-top:10px}
.nest{display:block;width:100%;height:auto}
.nest .a0{fill:#fff;stroke:var(--ink);stroke-width:3}
.nest .piece rect{fill:transparent;stroke:var(--ink);stroke-width:2}
.nest .piece text{fill:var(--muted);font-family:var(--font);font-weight:500}
.nest .hl rect{fill:var(--mag)}
.nest .hl text{fill:#fff;font-weight:700}
.nest a{text-decoration:none}
.nest a:hover rect{fill:#fbeef5}.nest a:hover .hl rect,.nest .hl:hover rect{fill:var(--mag)}
.nest a:focus-visible{outline:none}.nest a:focus-visible rect{stroke:var(--mag);stroke-width:8}
@media(prefers-reduced-motion:no-preference){.nest .hl rect{animation:cut .8s .2s cubic-bezier(.2,.7,.2,1) both}}
@keyframes cut{from{fill:transparent}}
.hero-pair{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:24px;align-items:center}
.sheet{display:block;width:100%;max-width:300px;height:auto;margin:0 auto}
.sheet .paper{fill:#fff;stroke:var(--ink);stroke-width:1.5}
.sheet .dim line{stroke:var(--mag);stroke-width:1}
.sheet .dim text{fill:var(--mag);font:600 17px var(--font)}
.sheet .sheet-name{fill:var(--ink);font:700 34px var(--font)}
.hero-series .series{display:block;width:100%;max-width:340px;height:auto}
.series rect{stroke:var(--ink);stroke-width:1.5}
.ser-B rect{fill:var(--tint)}.ser-C rect{fill:#fff;stroke-dasharray:6 4}.ser-A rect{fill:var(--mag);fill-opacity:.12;stroke:var(--mag)}
.series text{font:600 15px var(--font);fill:var(--ink)}
.ser-A text{fill:var(--mag)}
.steps{display:flex;flex-wrap:wrap;gap:8px}
.steps a{display:inline-block;padding:7px 14px;border:1.5px solid var(--ink);text-decoration:none;font-weight:500;font-size:15.5px}
.steps a:hover{background:var(--ink);color:#fff}
.formula{font-size:clamp(18px,2vw,22px);font-weight:500;padding:14px 18px;background:var(--tint);border-left:3px solid var(--mag);max-width:max-content}
.formula span{color:var(--mag)}
/* Таблицы */
.two{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,400px),1fr));gap:0 56px}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1.4em}
table{border-collapse:collapse;width:100%;max-width:760px;font-size:16.5px}
table.wide{max-width:none}
thead th{font-size:14px;font-weight:500;color:var(--muted);text-align:left;padding:8px 18px 8px 0;border-bottom:2px solid var(--ink);white-space:nowrap}
td,tbody th{padding:8px 18px 8px 0;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
tbody th{font-weight:500}
.num,th.num{text-align:right}
td:last-child,th:last-child{padding-right:0}
tr.hl th,tr.hl td{background:#fbeef5}
tr.hl th a{color:var(--mag)}
.hl-col{font-weight:600}
tbody tr:hover th,tbody tr:hover td{background:var(--tint)}
.index{list-style:none;padding:0;margin:0 0 1em;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.index li{border:1.5px solid var(--ink);padding:12px 14px}
.index a{font-weight:700;display:block}
.index span{font-size:14.5px;color:var(--muted)}
.formats{list-style:none;padding:0;margin:0 0 1em;display:flex;flex-wrap:wrap;gap:6px 10px;align-items:flex-end}
.formats a{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 8px;text-decoration:none;font-weight:600;min-width:44px}
.mini{display:block;height:calc(56px - var(--n) * 5px);aspect-ratio:1/1.414;border:1.5px solid var(--ink);background:#fff}
.formats a:hover .mini{background:var(--mag);border-color:var(--mag)}
.formats a:hover{color:var(--mag)}
ul:not(.index):not(.formats){padding-left:1.2em;max-width:40em}
.foot{padding:28px 4px 44px;font-size:15px;color:var(--mat-ink)}
.foot p{margin:0 0 8px}
.foot nav{display:flex;flex-wrap:wrap;gap:4px 22px;margin-bottom:10px}
.foot nav a{color:#fff;text-decoration-color:rgba(255,255,255,.4)}
.mat-note{font-size:13.5px;opacity:.8}
.cookie{position:fixed;left:12px;right:12px;bottom:12px;max-width:560px;display:flex;gap:14px;align-items:center;background:#fff;color:var(--ink);padding:12px 14px 12px 18px;font-size:14.5px;box-shadow:0 10px 30px -10px rgba(0,0,0,.5);z-index:5;border-top:3px solid var(--mag)}
.cookie[hidden]{display:none}
.cookie p{margin:0}
.cookie button{flex:none;font:600 15px/1 var(--font);min-height:40px;padding:0 16px;border:0;background:var(--ink);color:#fff;cursor:pointer}
@media(max-width:860px){
.hero{grid-template-columns:minmax(0,1fr)}
.hero-pair{grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr)}
}
@media(max-width:640px){
body{font-size:16.5px}
.head{display:block;padding:16px 4px 14px}
.nav{margin-top:10px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.nav a{white-space:nowrap}
.page-sheet::before,.page-sheet::after{display:none}
.m-hide{display:none}
table{font-size:15px}
td,tbody th,thead th{padding-right:10px}
.size{font-size:clamp(52px,15vw,72px)}
}