/* Отделочный цех: штукатурно-серый фон, графит, жёлтый малярный скотч как акцент; линейка-разметка как деталь */
:root{
 --paper:#F1F2EE; --surface:#FFFFFF; --ink:#1C262B; --muted:#58656A; --line:#D5D9D4; --tape:#E7B12C; --tape-ink:#1C262B; --wa:#1F8F4E;
 --f-display:"Unbounded","Golos Text",system-ui,sans-serif; --f-body:"Golos Text",system-ui,-apple-system,"Segoe UI",sans-serif; --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
 color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--paper:#13191C;--surface:#1A2226;--ink:#E8EBE7;--muted:#9AA7AB;--line:#2B363A;--tape:#F0C04A;--tape-ink:#13191C;--wa:#3DBB73;color-scheme:dark}}
:root[data-theme="dark"]{--paper:#13191C;--surface:#1A2226;--ink:#E8EBE7;--muted:#9AA7AB;--line:#2B363A;--tape:#F0C04A;--tape-ink:#13191C;--wa:#3DBB73;color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.55 var(--f-body);padding-bottom:64px}
@media (min-width:860px){body{padding-bottom:0}}
a{color:inherit}
.wrap{max-width:1120px;margin-inline:auto;padding-inline:16px}
@media (min-width:700px){.wrap{padding-inline:28px}}
h1,h2{font-family:var(--f-display);font-weight:700;line-height:1.12;text-wrap:balance;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(28px,5.2vw,48px)}
h2{font-size:clamp(22px,3.2vw,30px)}
:focus-visible{outline:3px solid var(--tape);outline-offset:2px}
/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:16px;padding-block:12px;flex-wrap:wrap}
.logo{font:700 15px var(--f-display);text-decoration:none;display:flex;align-items:center;gap:8px;margin-right:auto}
.logo-mark{width:22px;height:22px;background:var(--tape);transform:rotate(-8deg);border-radius:2px}
.top-phone{font:500 14px var(--f-mono);text-decoration:none;white-space:nowrap}
.menu-btn{font:600 14px var(--f-body);background:none;border:1px solid var(--line);color:var(--ink);border-radius:6px;padding:8px 12px;cursor:pointer}
.nav{display:none;width:100%;flex-wrap:wrap;gap:6px 14px;padding-block:6px 4px}
.nav.open{display:flex}
.nav a{text-decoration:none;font-size:14px;color:var(--muted);padding:4px 0}
.nav a[aria-current]{color:var(--ink);box-shadow:inset 0 -2px var(--tape)}
@media (max-width:520px){.top-phone{display:none}}
@media (min-width:1080px){.menu-btn{display:none}.nav{display:flex;width:auto;order:0}.top-in{flex-wrap:nowrap}.logo{margin-right:8px}.top-phone{margin-left:auto}}
/* hero */
.hero{display:grid;gap:28px;padding-block:28px 40px}
@media (min-width:860px){.hero{grid-template-columns:1.15fr .85fr;align-items:start;padding-block:48px 64px}}
.hero-txt{min-width:0;display:flex;flex-direction:column;gap:18px}
.crumb{margin:0;font-size:13px;color:var(--muted)}
.crumb a{text-decoration:none}
.lead{margin:0;font-size:18px;max-width:58ch;color:var(--muted)}
.tape{margin:0}
.tape span{display:inline-block;background:var(--tape);color:var(--tape-ink);font:500 18px var(--f-mono);padding:6px 14px;transform:rotate(-1.5deg);box-shadow:0 1px 0 rgba(0,0,0,.08)}
.usp{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.usp li{border-top:2px solid var(--ink);padding-top:8px;font-size:14px;color:var(--muted)}
.usp b{display:block;color:var(--ink);font-weight:600;font-size:15px}
.cta-row{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;font:600 15px var(--f-body);text-decoration:none;border-radius:8px;padding:14px 20px;border:0;cursor:pointer;min-height:48px}
.btn-main{background:var(--ink);color:var(--paper)}
.btn-main:hover{filter:brightness(1.15)}
.btn-wa{background:var(--wa);color:#fff}
.btn-ghost{border:1px solid currentColor;background:none;color:inherit}
.w100{width:100%}
/* calc */
.calc{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:8px;min-width:0;scroll-margin-top:90px}
.calc-h{font-size:18px;margin-bottom:6px}
.calc label,.calc legend{font-size:13px;font-weight:600;color:var(--muted);display:flex;justify-content:space-between}
.calc output{font:500 14px var(--f-mono);color:var(--ink)}
.calc select,.calc input:not([type=range]):not([type=radio]){font:400 16px var(--f-body);color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:12px;width:100%}
.calc input[type=range]{width:100%;accent-color:var(--tape)}
.ruler{height:10px;margin-top:-4px;background:repeating-linear-gradient(90deg,var(--muted) 0 1px,transparent 1px 10px) bottom/100% 5px no-repeat,repeating-linear-gradient(90deg,var(--muted) 0 1px,transparent 1px 50px) bottom/100% 10px no-repeat;opacity:.45}
.seg{border:0;padding:0;margin:4px 0;display:flex;flex-wrap:wrap;gap:8px}
.seg legend{margin-bottom:6px;width:100%}
.seg label{font-weight:500;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:8px 12px;gap:6px;cursor:pointer;justify-content:flex-start}
.seg label:has(input:checked){border-color:var(--ink)}
.result{display:grid;grid-template-columns:1fr auto;gap:12px;background:var(--paper);border-radius:8px;padding:12px;margin-block:6px}
.result small{display:block;font-size:12px;color:var(--muted)}
.result strong{font:500 20px var(--f-mono);font-variant-numeric:tabular-nums}
.fine{font-size:12px;color:var(--muted);margin:2px 0 0}
.ok{font-size:14px;background:var(--paper);border-left:4px solid var(--wa);padding:10px 12px;border-radius:4px}
/* sections */
.sec{padding-block:36px;display:flex;flex-direction:column;gap:20px;border-top:1px solid var(--line)}
.tbl{overflow-x:auto}
table{border-collapse:collapse;width:100%;max-width:760px}
th,td{text-align:left;padding:12px 0;border-bottom:1px dashed var(--line);vertical-align:top}
th{font-weight:500;padding-right:16px}
td{font:500 15px var(--f-mono);white-space:nowrap;text-align:right;font-variant-numeric:tabular-nums}
.note{margin:0;font-size:14px;color:var(--muted);max-width:65ch}
.incl{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px 24px}
.incl li{padding-left:22px;position:relative}
.incl li::before{content:"";position:absolute;left:0;top:.55em;width:12px;height:6px;border-left:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(-45deg)}
.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.steps li{counter-increment:s;display:flex;flex-direction:column;gap:4px;font-size:15px;color:var(--muted)}
.steps li::before{content:counter(s);font:500 13px var(--f-mono);color:var(--tape-ink);background:var(--tape);width:28px;height:28px;display:grid;place-items:center;border-radius:50%}
.steps b{color:var(--ink);font-weight:600}
.faq{max-width:780px}
details{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;padding:14px 28px 14px 0;list-style:none;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:4px;top:12px;font:500 18px var(--f-mono)}
details[open] summary::after{content:"−"}
details p{margin:0 0 16px;color:var(--muted);max-width:65ch}
.rels{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}
.rel{display:flex;justify-content:space-between;gap:12px;align-items:baseline;text-decoration:none;border:1px solid var(--line);border-radius:8px;padding:14px 16px;background:var(--surface)}
.rel:hover{border-color:var(--ink)}
.rel span{font-weight:600}
.rel em{font:500 12px var(--f-mono);font-style:normal;color:var(--muted);white-space:nowrap}
.final{background:var(--ink);color:var(--paper)}
.final-in{padding-block:44px;display:flex;flex-direction:column;gap:14px}
.final p{margin:0;max-width:58ch;opacity:.85}
.final .btn-main{background:var(--tape);color:var(--tape-ink)}
.foot{padding-block:24px;font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px}
.foot p{margin:0}
.dock{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:1fr 1fr 1.2fr;background:var(--surface);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px)}
.dock a{text-align:center;padding:14px 4px;font-weight:600;font-size:14px;text-decoration:none}
.dock .dock-main{background:var(--tape);color:var(--tape-ink)}
@media (min-width:860px){.dock{display:none}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* catalog */
.phones{margin:0;font-size:14px;color:var(--muted)}
.phones a{font:500 14px var(--f-mono);color:var(--ink);white-space:nowrap}
.more{font-weight:600;text-decoration:none;box-shadow:inset 0 -2px var(--tape)}
.sec p:has(.more){margin:0}
.cat-group{display:flex;flex-direction:column;gap:12px}
.cat-group h3{margin:0;font:600 13px var(--f-body);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.foot-cat{width:100%;font-size:13px;line-height:1.9}
.foot-cat a{color:var(--muted);text-decoration:none;white-space:nowrap}
.foot-cat a:hover{color:var(--ink)}
.foot a{color:inherit}