/* Mesterok · Электрик — общий стиль */
:root{
  --bg:#0F1115; --bg2:#13161C; --surf:#171A21; --surf2:#1E222B;
  --line:#2A2F3A; --line2:#3A404D;
  --ink:#F2F3F5; --ink2:#C9CDD6; --mute:#A3A8B4; --mute2:#9097A3;
  --y:#FACC15; --y2:#FDE047; --ytint:#2A2610; --yline:#4A4214; --on-y:#111318;
  --g:#22C55E; --gtint:#0F2418; --gline:#1F5133; --red:#FCA5A5;
  --r:16px; --font:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; --head:"Space Grotesk",var(--font);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--y)} a:hover{color:var(--y2)}
img,svg{max-width:100%}
h1,h2,h3{margin:0;line-height:1.15}
h2{font-family:var(--head);font-size:clamp(30px,4vw,40px);letter-spacing:-.01em}
p{margin:0}
input,textarea,select,button{font:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.muted{color:var(--mute)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--y);outline-offset:2px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 22px;border-radius:12px;border:1.5px solid var(--line2);background:transparent;color:var(--ink);font-weight:600;font-size:16px;text-decoration:none;cursor:pointer}
.btn:hover{color:var(--ink);border-color:var(--mute2)}
.btn-y{background:var(--y);color:var(--on-y);border-color:var(--y)}
.btn-y:hover{color:var(--on-y);background:var(--y2)}
.btn-lg{min-height:54px;padding:16px 28px;font-size:17px}
.btn:disabled{opacity:.6;cursor:wait}
.pill{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:10px 16px;border-radius:999px;border:1px solid var(--line);background:var(--surf);color:var(--ink);text-decoration:none;font-weight:500;font-size:15px}
.pill:hover{color:var(--ink);border-color:var(--line2)}

/* ---------- header ---------- */
.top{background:var(--surf);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.logo:hover{color:var(--ink)}
.logo-i{width:40px;height:40px;border-radius:10px;background:var(--y);display:flex;align-items:center;justify-content:center}
.logo b{font-family:var(--head);font-size:20px}
.nav{display:flex;flex-wrap:wrap;gap:22px;font-weight:500;font-size:15px}
.nav a{color:var(--ink2);text-decoration:none} .nav a:hover{color:var(--y)}
.top-r{display:flex;align-items:center;gap:12px}
.lang{display:flex;border:1px solid #333946;border-radius:999px;padding:3px}
.lang a{min-height:32px;display:flex;align-items:center;padding:4px 14px;border-radius:999px;font-weight:600;font-size:14px;color:var(--ink2);text-decoration:none}
.lang a[aria-current]{background:var(--y);color:var(--on-y)}
.tel{font-weight:600;color:var(--ink);text-decoration:none;white-space:nowrap}
.wire{height:2px;background:var(--surf) linear-gradient(90deg,transparent,var(--y),transparent) no-repeat;background-size:40% 100%;animation:wire 3.5s linear infinite}
@keyframes wire{from{background-position:-40% 0}to{background-position:140% 0}}

/* ---------- status bar ---------- */
.bar .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;padding-top:14px;padding-bottom:14px}
.bar b{font-size:16px} .bar span{flex:1 1 300px;font-size:15px;color:var(--mute)}
.bar a{font-weight:600;font-size:15px}
.bar-busy{background:var(--ytint);border-bottom:1px solid var(--yline)}
.bar-free{background:var(--gtint);border-bottom:1px solid var(--gline)} .bar-free a{color:#4ADE80}
.dot{width:10px;height:10px;border-radius:99px;flex-shrink:0;background:var(--y);animation:ping 1.6s ease-out infinite}
.bar-free .dot{background:var(--g);animation-name:pingg}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(250,204,21,.7)}100%{box-shadow:0 0 0 12px rgba(250,204,21,0)}}
@keyframes pingg{0%{box-shadow:0 0 0 0 rgba(34,197,94,.7)}100%{box-shadow:0 0 0 12px rgba(34,197,94,0)}}

/* ---------- hero ---------- */
.hero .wrap{display:flex;flex-wrap:wrap;gap:48px;align-items:center;padding-top:64px;padding-bottom:64px}
.hero-t{flex:999 1 520px;min-width:0;display:flex;flex-direction:column;gap:24px}
.tag{align-self:flex-start;background:var(--ytint);color:var(--y2);font-weight:600;font-size:14px;padding:6px 14px;border-radius:999px}
.hero h1{font-family:var(--head);font-size:clamp(34px,5vw,60px);line-height:1.05;letter-spacing:-.02em;text-shadow:0 0 32px rgba(250,204,21,.15);animation:flicker 1.8s ease-out .2s both}
@keyframes flicker{0%{opacity:.15}6%{opacity:1}9%{opacity:.25}13%{opacity:1}17%{opacity:.45}21%,100%{opacity:1}}
.hero-sub{font-size:19px;color:var(--mute);max-width:560px}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.row .muted{font-size:15px;margin-right:4px}
.checks{display:flex;flex-wrap:wrap;gap:10px 28px;font-size:15px;color:var(--ink2);padding:0;margin:0;list-style:none}
.checks li{display:flex;align-items:center;gap:8px}
.shine{position:relative;overflow:hidden}
.shine::after{content:"";position:absolute;top:0;bottom:0;left:0;width:35%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.6),transparent);animation:shine 3.5s ease-in-out infinite;pointer-events:none}
@keyframes shine{0%{transform:translateX(-150%) skewX(-20deg)}60%,100%{transform:translateX(350%) skewX(-20deg)}}
.bolt{animation:boltp 2.6s ease-in-out infinite}
@keyframes boltp{0%,100%{filter:drop-shadow(0 0 0 rgba(250,204,21,0))}50%{filter:drop-shadow(0 0 8px rgba(250,204,21,.9))}}

/* interactive scheme */
.scheme{flex:1 1 340px;min-width:0;max-width:460px;border-radius:24px;border:1px solid var(--line);background:var(--bg2) radial-gradient(#252A35 1px,transparent 1px);background-size:22px 22px;padding:24px;display:flex;flex-direction:column;gap:12px}
.scheme-box{position:relative}
.scheme svg{display:block;width:100%;height:auto}
.hot{position:absolute;background:transparent;border:0;padding:0;cursor:pointer;border-radius:10px;transition:background .15s}
.hot:hover{background:rgba(250,204,21,.08)}
.scheme-cap{text-align:center;font-size:14px;color:var(--mute);min-height:42px}
.flow{stroke-dasharray:6 14;animation:flow 1.1s linear infinite;transition:stroke-opacity .3s}
@keyframes flow{to{stroke-dashoffset:-40}}
.glow{animation:glow 2.4s ease-in-out infinite}
@keyframes glow{0%,100%{opacity:.25}50%{opacity:.75}}
.spark{transform-box:fill-box;transform-origin:center;animation:spark 2.2s ease-out infinite}
@keyframes spark{0%{transform:translate(0,0) scale(1);opacity:0}10%{opacity:1}100%{transform:translate(var(--dx),var(--dy)) scale(.2);opacity:0}}
.f-lamp,.f-sock{fill:#FACC15;transition:fill .25s}
.s-lamp,.s-sock{stroke:#FACC15;transition:stroke .25s}
.s-fil{stroke:#FDE047;transition:stroke .25s}
.f-bulb{fill:#2A2610;transition:fill .25s}
.o-lamp,.o-sock,.o-plug{transition:opacity .3s}
.o-plug{opacity:0}
.s-plug{stroke:#3A404D}
.lev{transition:transform .2s}
.off-lamp .f-lamp,.off-sock .f-sock{fill:#3A404D}
.off-lamp .s-lamp,.off-lamp .s-fil,.off-sock .s-sock{stroke:#3A404D}
.off-lamp .f-bulb{fill:#171A21}
.off-lamp .o-lamp,.off-sock .o-sock{opacity:0}
.plug-in .o-plug{opacity:1}
.plug-in:not(.off-sock) .s-plug{stroke:#FACC15}
.off-lamp .lev-lamp,.off-sock .lev-sock{transform:translateY(18px)}

/* ---------- sections ---------- */
.sec{padding:80px 0}
.sec > .wrap{display:flex;flex-direction:column;gap:36px}
.sec-alt{background:var(--surf)}
.sec-dark{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-black{background:#0A0C10}
.lead{color:var(--mute);font-size:17px;max-width:720px;margin-top:12px}
.sec-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px}
.sec-head a{font-weight:600;font-size:17px}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
.grid-sm{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:16px}
.card{border:1px solid var(--line);border-radius:18px;padding:26px;background:var(--bg);display:flex;flex-direction:column;gap:14px;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--y);transform:translateY(-3px)}
.sec .card{background:var(--bg2)} .sec-alt .card{background:var(--bg)}
.ic{width:52px;height:52px;border-radius:14px;background:var(--surf);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sec-alt .ic{background:var(--surf2)}
.ic-sm{width:44px;height:44px;border-radius:12px;background:var(--ytint)}
.ic-y{width:40px;height:40px;border-radius:10px;background:var(--y)}
.card h3{font-size:20px;font-weight:600}
.card ul{margin:0;padding-left:18px;color:var(--mute);font-size:15px;display:flex;flex-direction:column;gap:6px}
.card p{color:var(--mute);font-size:15px}
.price{margin-top:auto;font-weight:600;color:var(--y2)}
.card-row{flex-direction:row;gap:16px}
.big{font-family:var(--head);font-weight:700;font-size:28px;color:var(--y)}
.stats{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats .wrap{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));padding-top:28px;padding-bottom:28px}
.stats b{display:block;font-family:var(--head);font-size:40px;color:var(--y);text-shadow:0 0 24px rgba(250,204,21,.25)}
.stats span{color:var(--mute);font-size:15px}
.notice{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding:20px 24px;border-radius:16px;border:1px solid var(--yline);background:var(--ytint)}
.notice p{flex:1 1 360px}
.small{font-size:14px;color:var(--mute2)}

/* before / after */
.ba{margin:0;display:flex;flex-direction:column;gap:12px}
.ba-box{position:relative;aspect-ratio:4/3;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.ba-box svg{position:absolute;inset:0;width:100%;height:100%}
.ba-before{position:absolute;inset:0;clip-path:inset(0 50% 0 0)}
.ba-line{position:absolute;top:0;bottom:0;left:50%;width:3px;margin-left:-1px;background:var(--y);box-shadow:0 0 12px rgba(250,204,21,.8)}
.ba-chip{position:absolute;top:12px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.06em}
.ba input{width:100%;accent-color:var(--y);min-height:32px}
.ba figcaption{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:15px;color:var(--ink2)}
.demo{font-size:12px;font-weight:600;color:var(--mute2);border:1px solid var(--line2);padding:2px 8px;border-radius:999px}

/* steps */
.steps{display:grid;gap:32px;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.steps b{display:block;font-family:var(--head);font-size:48px;color:var(--y);line-height:1;margin-bottom:12px}
.steps h3{font-size:20px;font-weight:600;margin-bottom:8px}
.steps p{color:var(--mute)}

/* prices (conditions) */
.cond .wrap{flex-direction:row;flex-wrap:wrap;gap:48px}
.cond-l{flex:1 1 320px;display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.cond-r{flex:999 1 520px;min-width:0}
.cond-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;padding:22px 0;border-bottom:1px solid #33363E;font-size:19px}
.cond-row b{color:var(--y2)}
.cond-row p{flex-basis:100%;color:#B9BBC2;font-size:15px}

/* photo cta */
.cta-box{display:flex;flex-wrap:wrap;align-items:center;gap:24px 40px;padding:40px;border-radius:24px;border:1px solid var(--yline);background:var(--bg2) radial-gradient(#252A35 1px,transparent 1px);background-size:22px 22px}
.cta-box > div{flex:1 1 360px;display:flex;flex-direction:column;gap:8px}
.cta-box h2{font-size:32px}

/* zones */
.zone{display:flex;flex-direction:column;gap:14px;padding:22px;border-radius:18px;background:var(--bg2);border:1px solid var(--line)}
.zone.near{border-color:var(--y)}
.zone small{font-size:13px;font-weight:600;color:var(--mute2);text-transform:uppercase;letter-spacing:.06em}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:var(--bg);font-size:14px}

/* faq */
.faq{display:flex;flex-direction:column;gap:10px;max-width:860px}
.faq details{border:1px solid var(--line);border-radius:14px;background:var(--bg2)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;min-height:56px;font-size:17px;font-weight:600}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--y);font-size:24px;line-height:1;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 20px 18px;color:var(--mute);line-height:1.6}

/* forms */
.form-card{max-width:720px;margin:0 auto;background:var(--surf);border:1px solid var(--line);border-radius:24px;padding:clamp(24px,5vw,40px);display:flex;flex-direction:column;gap:20px}
.form{display:flex;flex-direction:column;gap:16px}
.form label,.field{display:flex;flex-direction:column;gap:6px;font-weight:500;font-size:15px}
.form input,.form textarea,.form select,.field input,.field select{padding:13px 15px;border:1px solid var(--line2);border-radius:10px;font-size:16px;background:var(--bg);color:var(--ink);width:100%}
.form textarea{resize:vertical}
.form .hint{font-weight:400;color:var(--mute2);font-size:13px}
.form .agree{flex-direction:row;align-items:flex-start;gap:10px;font-weight:400;font-size:14px;color:var(--mute)}
.form .agree input{width:20px;height:20px;margin:2px 0 0;accent-color:var(--y);flex-shrink:0}
.two{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(min(100%,210px),1fr))}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.err{color:var(--red);font-size:14px;min-height:0}
.err:empty{display:none}
.ok-box{display:flex;flex-direction:column;gap:14px;padding:28px;border-radius:20px;border:1px solid var(--gline);background:var(--gtint)}
.ok-box h3{font-size:22px}
.ok-box ul{margin:0;padding-left:20px;color:var(--mute)}
.code{font-family:var(--head);font-weight:700;font-size:clamp(28px,6vw,36px);letter-spacing:.04em;color:var(--y);text-shadow:0 0 24px rgba(250,204,21,.3)}
.stars{display:flex;gap:4px}
.stars button{width:44px;height:44px;background:transparent;border:0;cursor:pointer;font-size:30px;line-height:1;padding:0;color:var(--line2)}
.stars button.on{color:var(--y)}
.verify{display:flex;flex-direction:column;gap:12px;padding:16px;border-radius:14px;background:var(--surf);border:1px solid var(--yline)}
.verify > b{font-size:14px;color:var(--y2)}
.review{margin:0;display:flex;flex-direction:column;gap:12px;padding:24px;border-radius:18px;background:var(--bg);border:1px solid var(--line)}
.review footer{font-size:14px;color:var(--mute2)}

/* footer */
.foot{border-top:1px solid var(--line);padding:32px 0}
.foot .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font-size:15px;color:var(--mute)}
.foot b{color:var(--ink)}
.foot .row{gap:4px 18px}
.foot .row a{display:flex;align-items:center;gap:6px;color:var(--ink2);text-decoration:none;min-height:44px}
.totop{position:fixed;right:20px;bottom:20px;z-index:50;width:52px;height:52px;border-radius:999px;border:0;background:var(--y);color:var(--on-y);cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 4px rgba(250,204,21,.18),0 8px 24px rgba(0,0,0,.5);opacity:0;pointer-events:none;transform:translateY(12px);transition:opacity .2s,transform .2s}
.totop.show{opacity:1;pointer-events:auto;transform:none}

/* ---------- calculator ---------- */
.calc .wrap{display:flex;flex-direction:column;gap:28px;padding-top:40px;padding-bottom:80px}
.calc h1{font-family:var(--head);font-size:clamp(30px,4vw,48px);letter-spacing:-.02em}
.calc-cols{display:flex;flex-wrap:wrap;gap:32px;align-items:flex-start}
.calc-list{flex:999 1 560px;min-width:0;display:flex;flex-direction:column;gap:28px}
.grp{display:flex;flex-direction:column;gap:10px}
.grp-h{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.grp-h h2{font-family:var(--font);font-size:20px;font-weight:600;letter-spacing:0}
.gbadge{font-size:13px;font-weight:600;color:var(--y2);background:var(--ytint);border:1px solid var(--yline);padding:4px 10px;border-radius:999px}
.item{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding:14px 18px;border-radius:14px;background:var(--surf);border:2px solid var(--line)}
.item.on{border-color:var(--y)}
.item-t{flex:1 1 240px;min-width:0;display:flex;flex-direction:column;gap:4px}
.item-t b{font-weight:600}
.item-t span{color:var(--mute);font-size:14px;line-height:1.5}
.item-t em{font-style:normal;color:var(--y2);font-size:14px;font-weight:600}
.step{display:flex;align-items:center;gap:4px}
.step button{width:44px;height:44px;border-radius:10px;border:1px solid var(--line2);background:var(--surf);color:var(--ink);font-size:22px;line-height:1;cursor:pointer}
.step button.plus{background:var(--y);border-color:var(--y);color:var(--on-y)}
.step button:disabled{opacity:.4;cursor:default}
.step output{min-width:36px;text-align:center;font-weight:600;font-size:17px}
.sum{min-width:96px;text-align:right;font-weight:600}
.hintx{flex-basis:100%;color:var(--y2);font-size:13px;font-weight:500}
.extras{flex-basis:100%;background:var(--surf2);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.extras > b{font-size:14px;color:var(--ink2)}
.extra{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.extra .item-t{flex-basis:220px}
.extra .step button.plus{background:transparent;color:var(--y);border-color:var(--y)}
.summary{flex:1 1 340px;min-width:0;background:var(--surf);border:1px solid var(--line);border-radius:20px;padding:28px;display:flex;flex-direction:column;gap:18px}
.summary h2{font-size:26px}
.srow{display:flex;justify-content:space-between;gap:12px}
.srow b{font-weight:600}
.total{border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.total b{font-family:var(--head);font-size:34px;color:var(--y)}
.lines{margin:0;padding-left:18px;color:var(--mute);font-size:14px}
@media (max-width:900px){.summary{position:static}}

/* ---------- hub ---------- */
.hub .wrap{padding-top:64px;padding-bottom:80px;display:flex;flex-direction:column;gap:32px}
.hub h1{font-family:var(--head);font-size:clamp(32px,5vw,52px)}

/* ---------- admin ---------- */
.admin-wrap,.admin-login{max-width:1000px;margin:0 auto;padding:32px 20px;display:flex;flex-direction:column;gap:20px}
.admin-login{max-width:420px}
.admin-login form{display:flex;flex-direction:column;gap:12px}
.admin input,.admin select{padding:10px 12px;border:1px solid var(--line2);border-radius:10px;background:var(--bg);color:var(--ink)}
.admin-head{display:flex;flex-wrap:wrap;gap:12px;align-items:baseline}
.admin-head h1{font-size:24px;margin-right:auto}
.panel{background:var(--surf);border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:14px}
.panel h2{font-size:20px;font-family:var(--font)}
.toggles{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.toggles label{display:flex;gap:10px;align-items:center}
.toggles input{width:20px;height:20px;accent-color:var(--y)}
.adm-item{border-top:1px solid var(--line);padding-top:14px;display:flex;flex-direction:column;gap:10px;font-size:15px}
.adm-item p,.adm-item ul{margin:6px 0 0;color:var(--ink2)}
.row-btns{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.row-btns .btn{min-height:40px;padding:8px 14px;font-size:14px}
.alert{padding:12px 16px;border-radius:10px;background:#3A1F14;color:#FED7AA}
.alert.ok{background:var(--gtint);color:#BBF7D0}
.tag-new,.tag-pending{color:var(--y2)} .tag-done,.tag-approved{color:#4ADE80} .tag-cancel,.tag-rejected{color:var(--red)}

@media (max-width:640px){
  .nav{display:none}
  .sec{padding:56px 0}
  .hero .wrap{padding-top:40px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}