/* Статьи и внутренние страницы. Цвета и шрифты — из styles.css (CSS-переменные). */
.subpage{padding-top:96px}
.pnav{display:flex}
.pnav__links{display:flex;gap:28px;margin-left:auto}
.pnav__links a{position:relative;font-size:13px;color:var(--mut);padding:12px 0;transition:color .25s}
.pnav__links a::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:1px;background:var(--red);transform:scaleX(0);transform-origin:0 50%;transition:transform .45s var(--ease)}
.pnav__links a:hover,.pnav__links a.on{color:#fff}
.pnav__links a:hover::after,.pnav__links a.on::after{transform:scaleX(1)}
@media (min-width:901px){.nav.pnav{display:flex}}
@media (max-width:600px){.pnav__links{gap:16px}.pnav__links a:first-child{display:none}.nav__logo small{display:none}}
@media (max-width:480px){.pnav .nav__logo>span{display:none}}

/* список */
.alist__head{padding:clamp(40px,7vw,90px) 0 clamp(28px,4vw,48px);border-bottom:1px solid var(--line)}
.alist__tag,.art__tag{display:flex;align-items:center;gap:10px;color:var(--red2);margin:0 0 18px}
.alist__tag b,.art__tag b,.acta__tag b{width:7px;height:7px;background:var(--red2)}
.alist__h{font-family:'Unbounded',sans-serif;font-weight:900;font-stretch:116%;text-transform:uppercase;font-size:clamp(44px,9vw,140px);line-height:.86;letter-spacing:-.01em;margin:0 0 22px}
.alist__lead{max-width:560px;color:var(--mut);margin:0}
.alist__filter{display:flex;flex-wrap:wrap;gap:8px;padding:22px 0}
.chip{min-height:44px;padding:0 18px;border:1px solid var(--line2);color:var(--mut);font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;transition:color .25s,border-color .25s,background .25s}
.chip:hover{color:#fff}
.chip.on{background:var(--tx);color:#0d0e10;border-color:var(--tx)}
.alist__list{list-style:none;margin:0;padding:0;counter-reset:a}
.alist__empty{padding:60px 0;color:var(--dim)}
.arow{border-bottom:1px solid var(--line)}
.arow a{display:grid;grid-template-columns:64px minmax(0,1fr) minmax(150px,240px);gap:clamp(16px,3vw,48px);align-items:start;padding:clamp(26px,3.4vw,44px) 0;transition:background .3s}
.arow a:hover{background:linear-gradient(90deg,rgba(216,30,32,.06),transparent 60%)}
.arow__n{color:var(--dim);padding-top:6px}
.arow__meta{display:block;color:var(--mut);margin-bottom:12px}
.arow__t{display:block;font-family:'Unbounded',sans-serif;font-weight:800;font-stretch:110%;font-size:clamp(22px,2.6vw,36px);line-height:1.08;margin-bottom:12px;transition:color .25s}
.arow a:hover .arow__t{color:#fff}
.arow__d{display:block;color:var(--mut);max-width:62ch}
.arow__fig{display:flex;flex-direction:column;gap:6px;border-left:1px solid var(--line);padding-left:20px}
.arow__fig b{font-family:'JetBrains Mono',monospace;font-weight:500;font-size:clamp(26px,3vw,40px);color:var(--red2);line-height:1}
.arow__fig .mono{color:var(--dim);font-size:10px}
@media (max-width:760px){.arow a{grid-template-columns:40px minmax(0,1fr)}.arow__fig{grid-column:2;border-left:0;padding-left:0;flex-direction:row;align-items:baseline;gap:12px}}

/* статья */
.art{max-width:1120px}
.art__back{display:inline-block;color:var(--mut);padding:14px 0;margin-top:clamp(16px,3vw,32px)}
.art__back:hover{color:#fff}
.art__head{padding:clamp(20px,4vw,48px) 0 clamp(28px,4vw,44px)}
.art__h{font-family:'Unbounded',sans-serif;font-weight:900;font-stretch:112%;text-transform:uppercase;font-size:clamp(21px,4.6vw,64px);line-height:1;letter-spacing:-.01em;margin:0 0 24px;max-width:22em}
.art__lead{font-size:clamp(17px,1.5vw,20px);color:var(--mut);max-width:60ch;margin:0}
.art__facts{border:1px solid var(--line2);background:var(--panel);padding:clamp(20px,2.6vw,32px);margin-bottom:clamp(36px,5vw,64px)}
.art__facts-tag{color:var(--dim);margin:0 0 18px}
.art__facts dl{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:22px 28px;margin:0}
.art__facts dl div{border-top:1px solid var(--line);padding-top:14px}
.art__facts dt{color:var(--dim);font-size:10px;margin-bottom:8px}
.art__facts dd{margin:0;font-family:'JetBrains Mono',monospace;font-size:clamp(20px,2.2vw,28px);color:var(--tx)}
.art__facts dl div:first-child dd{color:var(--red2)}
.art__body{max-width:68ch;font-size:17px;line-height:1.7;color:#C9D1DA}
.art__body h2{font-family:'Unbounded',sans-serif;font-weight:800;font-stretch:108%;font-size:clamp(22px,2.4vw,30px);line-height:1.15;color:var(--tx);margin:2.2em 0 .7em}
.art__body h3{font-size:19px;color:var(--tx);margin:1.8em 0 .5em}
.art__body p,.art__body ul,.art__body ol{margin:0 0 1.1em}
.art__body li{margin-bottom:.4em}
.art__body strong{color:var(--tx)}
.art__body a{color:var(--tx);text-decoration:underline;text-underline-offset:3px}
.art__body blockquote{margin:1.6em 0;padding:4px 0 4px 22px;border-left:2px solid var(--red);color:var(--tx)}
.art__body code{font-family:'JetBrains Mono',monospace;font-size:.88em;color:var(--tx)}
.art__body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.art__body th,.art__body td{text-align:left;padding:10px 12px 10px 0;border-bottom:1px solid var(--line)}
.art__body th{font-family:'JetBrains Mono',monospace;font-weight:400;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
.art__body img{width:100%;height:auto;border:1px solid var(--line);margin:1.4em 0}
.art__src{max-width:68ch;margin-top:clamp(40px,5vw,64px);padding-top:22px;border-top:1px solid var(--line);color:var(--mut);font-size:14px}
.art__src .mono{color:var(--dim)}
.art__src ol{padding-left:20px}
.art__src a{color:var(--tx);text-decoration:underline;text-underline-offset:3px}

/* связь в конце статьи */
.acta{margin:clamp(48px,7vw,96px) 0 0;padding:clamp(24px,3.4vw,48px);border:1px solid var(--line2);background:linear-gradient(135deg,rgba(216,30,32,.1),transparent 55%),var(--panel)}
.acta__tag{display:flex;align-items:center;gap:10px;color:var(--mut);margin:0 0 14px}
.acta__txt{max-width:56ch;color:var(--mut);margin:0 0 24px}
.acta__row{display:flex;flex-wrap:wrap;gap:8px 40px;margin-bottom:26px}
.acta__big{font-family:'JetBrains Mono',monospace;font-size:clamp(22px,3vw,38px);color:var(--tx);letter-spacing:.02em;border-bottom:1px solid var(--line2);padding-bottom:4px;transition:border-color .25s}
.acta__big:hover{border-color:var(--red2)}
.acta__btns{display:flex;flex-wrap:wrap;gap:10px}
@media (max-width:600px){.acta__btns .btn{flex:1 1 100%;justify-content:center}}

/* фото в статье */
.art__body figure{margin:1.8em 0}
.art__body figure img{margin:0;background:var(--panel)}
.art__body figure.tall img{width:auto;max-width:100%;max-height:min(640px,62vh);height:auto}
.art__body figcaption{margin-top:10px;font-size:13px;line-height:1.5;color:var(--dim)}
.art__body figcaption a{color:var(--mut)}
.acta__people{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px 40px;margin-bottom:26px}
.acta__person,.acta__mail{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.acta__person .mono,.acta__mail .mono{color:var(--dim)}
.acta__mail{margin-bottom:26px}
.acta__tg{color:var(--mut);text-decoration:underline;text-underline-offset:3px}
.acta__tg:hover{color:#fff}
.acta__mail .acta__big{font-size:clamp(15px,3vw,38px);white-space:nowrap}

/* калькулятор в статье (логика в calc.js) */
.calc{margin:2em 0;padding:clamp(18px,2.6vw,30px);border:1px solid var(--line2);background:var(--panel);font-size:15px;line-height:1.6}
.calc__tag{display:flex;align-items:center;gap:10px;color:var(--red2);margin:0 0 6px!important}
.calc__tag b{width:7px;height:7px;background:var(--red2)}
.calc__h{font-family:'Unbounded',sans-serif;font-weight:800;font-stretch:108%;font-size:clamp(17px,1.8vw,21px);line-height:1.2;color:var(--tx);margin:0 0 18px!important}
.calc__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px 18px}
.calc__sub{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut);margin:22px 0 10px!important;padding-top:16px;border-top:1px solid var(--line)}
.calc label{display:flex;flex-direction:column;gap:6px;font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
.calc input,.calc select{width:100%;min-height:44px;padding:0 12px;background:var(--bg);border:1px solid var(--line2);border-radius:0;color:var(--tx);font-family:'JetBrains Mono',monospace;font-size:16px;letter-spacing:0;text-transform:none;-moz-appearance:textfield}
.calc input:focus,.calc select:focus{outline:none;border-color:var(--red2)}
.calc input::-webkit-inner-spin-button{opacity:.4}
.calc__presets{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}
.calc__presets .chip{min-height:40px;padding:0 14px}
.calc__out{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);color:var(--mut)}
.calc__out b{font-family:'JetBrains Mono',monospace;font-weight:500;font-size:clamp(22px,2.6vw,30px);line-height:1.2;color:var(--red2)}
.calc__ok{color:var(--ok)}
.calc__warn{color:var(--red2)}
.art__body .calc table{margin:14px 0 0;font-size:14px}
.calc tr.ok td:last-child{color:var(--ok)}
.calc__note{font-size:13px;color:var(--dim);margin:14px 0 0!important}
.calc__out,.calc__presets{display:none}
.calc--on .calc__out{display:block}.calc--on .calc__presets{display:flex}
.calc--on .calc__nojs{display:none}
.art__body figure.scheme img{border:0;background:none}

/* длинный заголовок списка (Калькуляторы) не рвётся посреди слова на телефоне */
.alist__h--long{font-size:clamp(20px,6.2vw,84px)}
.alist--calc .arow__fig b{white-space:nowrap}
/* длинные слова в заголовках списка («видеонаблюдения», «PoE-коммутатор») на узком экране переносятся по слогам */
@media (max-width:400px){.arow__t{hyphens:auto;-webkit-hyphens:auto;overflow-wrap:break-word}}