@import url(fonts.css);
/* ============================================================
Baupanel® Portugal — baupanel.pt
Réplica em PT-PT do baupanel.com (Baupanel® System, Espanha)
Cores da folha de estilo Baupanel Portugal: azul #295d7e / vermelho #b83936
Azul institucional do site original: #005c80
============================================================ */
:root{
--blue:#005c80; /* azul do site original (botões, títulos) */
--blue-2:#295d7e; /* azul Pantone 308 C (logótipo PT) */
--red:#b83936; /* vermelho Pantone 485 C (logótipo PT) */
--ink:#262b2e;
--muted:#6b7075;
--line:#e4e7ea;
--bg:#ffffff;
--bg-2:#f4f5f6;
--dark:#232323;
--max:1280px;
--pad:clamp(18px,4vw,48px);
--head:"Montserrat",-apple-system,"Helvetica Neue",Arial,sans-serif;
--body:"Open Sans",-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--bg);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
strong{font-weight:600}
::selection{background:var(--blue);color:#fff}
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.wrap.n{max-width:980px}
h1,h2,h3,h4{font-family:var(--head);line-height:1.2;color:var(--blue)}
h1{font-size:clamp(1.9rem,3.6vw,2.6rem);font-weight:600}
h2{font-size:clamp(1.5rem,2.8vw,2.1rem);font-weight:600}
h3{font-size:clamp(1.15rem,1.8vw,1.35rem);font-weight:600}
h4{font-size:1rem;font-weight:600}
h2.red,h3.red,.red{color:var(--red)}
.sub{font-family:var(--head);font-weight:600;color:var(--ink);font-size:clamp(1.05rem,1.6vw,1.25rem);line-height:1.45}
.lead{font-family:var(--head);font-weight:600;color:var(--blue);font-size:clamp(1.15rem,1.9vw,1.5rem);line-height:1.4}
.muted{color:var(--muted)}
.center{text-align:center}
p+p{margin-top:1em}
.section{padding:clamp(48px,7vw,84px) 0}
.section.alt{background:var(--bg-2)}
.section.dark{background:var(--dark);color:#fff}
.section.dark h2,.section.dark h3{color:#fff}
.section-head{max-width:820px;margin:0 auto clamp(28px,4vw,48px);text-align:center}
.section-head h2{margin-bottom:.5rem}
.section-head .sub{margin-top:.4rem}
/* ---------- botões ---------- */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--head);font-weight:600;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;padding:.85rem 1.5rem;border-radius:4px;border:2px solid var(--blue);background:var(--blue);color:#fff;cursor:pointer;transition:.2s;line-height:1.2}
.btn:hover{background:#00476a;border-color:#00476a}
.btn.line{background:transparent;color:var(--blue)}
.btn.line:hover{background:var(--blue);color:#fff}
.btn.red{background:var(--red);border-color:var(--red)}
.btn.red:hover{background:#9c2f2c;border-color:#9c2f2c}
.btn.white{background:#fff;border-color:#fff;color:var(--blue)}
.btn.white:hover{background:#e9eef2;border-color:#e9eef2}
.btn .arr::before{content:"➜";font-size:.85em}
.btn.small{padding:.6rem 1.05rem;font-size:.72rem}
/* ---------- barra superior ---------- */
.topbar{background:var(--dark);color:#fff;font-size:.78rem;font-family:var(--head);font-weight:500}
.topbar .in{max-width:var(--max);margin:0 auto;padding:0 var(--pad);display:flex;align-items:center;justify-content:space-between;height:44px;gap:1rem}
.topbar .l,.topbar .r{display:flex;align-items:center;gap:.9rem}
.topbar a:hover{color:#fff;opacity:.85}
.topbar .soc{display:flex;gap:.45rem}
.topbar .soc a{width:24px;height:24px;border-radius:50%;background:#3b3b3b;display:inline-flex;align-items:center;justify-content:center}
.topbar .soc svg{width:12px;height:12px;fill:#fff}
.topbar .tel{display:inline-flex;align-items:center;gap:.4rem}
.topbar .tel svg{width:14px;height:14px;fill:#fff}
.topbar .lang{display:flex;gap:.55rem;font-size:.72rem;letter-spacing:.05em}
.topbar .lang a{opacity:.55}.topbar .lang a.on{opacity:1;font-weight:600}
.topbar .cta{background:var(--blue);padding:.45rem .9rem;border-radius:3px;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}
.topbar .cta:hover{background:#00476a;opacity:1}
@media (max-width:760px){.topbar .lang,.topbar .tel span{display:none}}
/* ---------- cabeçalho ---------- */
.site-head{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 1px 0 var(--line);transition:box-shadow .2s}
.site-head.scrolled{box-shadow:0 4px 18px rgba(0,0,0,.08)}
.site-head .bar{max-width:var(--max);margin:0 auto;padding:0 var(--pad);display:flex;align-items:center;justify-content:space-between;height:96px;gap:1rem}
.brand img{height:74px;width:auto}
.nav{display:flex;align-items:center;gap:clamp(.9rem,2vw,1.9rem)}
.nav>a,.nav .dd>a{font-family:var(--head);font-weight:600;font-size:.86rem;color:var(--ink);white-space:nowrap;padding:.4rem 0;position:relative}
.nav>a:hover,.nav>a.on,.nav .dd>a:hover,.nav .dd.on>a{color:var(--blue)}
.nav .dd{position:relative}
.nav .dd>a::after{content:"";display:inline-block;margin-left:.35rem;width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-3px);opacity:.6}
.nav .menu{position:absolute;top:100%;left:-14px;min-width:270px;background:#fff;border-top:3px solid var(--blue);box-shadow:0 12px 30px rgba(0,0,0,.12);padding:.6rem 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s}
.nav .dd:hover .menu,.nav .dd:focus-within .menu{opacity:1;visibility:visible;transform:none}
.nav .menu a{display:block;padding:.55rem 1.1rem;font-size:.84rem;line-height:1.35}
.nav .menu a small{display:block;font-size:.72rem;color:var(--muted);font-weight:400}
.nav .menu a:hover{background:var(--bg-2);color:var(--blue)}
.burger{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;position:relative;z-index:130}
.burger span{position:absolute;left:9px;right:9px;height:2px;background:var(--ink);transition:.3s}
.burger span:nth-child(1){top:13px}.burger span:nth-child(2){top:20px}.burger span:nth-child(3){top:27px}
body.menu-open .burger span:nth-child(1){top:20px;transform:rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){top:20px;transform:rotate(-45deg)}
@media (max-width:1000px){
.site-head .bar{height:80px}
.brand img{height:60px}
.burger{display:block}
.nav{position:fixed;inset:0;background:#fff;flex-direction:column;justify-content:flex-start;align-items:stretch;gap:0;padding:100px var(--pad) 40px;overflow:auto;opacity:0;pointer-events:none;transition:opacity .25s;z-index:120}
.nav>a,.nav .dd>a{display:block;padding:.85rem 0;border-bottom:1px solid var(--line);font-size:1rem}
.nav .dd>a::after{float:right;margin-top:.55rem}
.nav .menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border-top:0;padding:0 0 .5rem 1rem;min-width:0}
.nav .menu a{padding:.5rem 0}
body.menu-open .nav{opacity:1;pointer-events:auto}
body.menu-open{overflow:hidden}
}
/* ---------- hero ---------- */
.hero{position:relative;min-height:clamp(520px,72vh,760px);display:flex;align-items:center;background:#111;color:#fff;overflow:hidden}
.hero img.bg,.hero video.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.62) 0%,rgba(0,0,0,.25) 55%,rgba(0,0,0,.1) 100%)}
.hero .in{position:relative;z-index:2;max-width:var(--max);margin:0 auto;padding:clamp(48px,8vw,90px) var(--pad);width:100%}
.hero h1{color:#fff;font-size:clamp(2.4rem,6.2vw,4.6rem);font-weight:700;line-height:1.02;letter-spacing:-.01em;max-width:12ch;text-transform:lowercase}
.hero h1.norm{text-transform:none;font-size:clamp(2rem,4.6vw,3.4rem);max-width:16ch}
.hero .tag{font-family:var(--head);font-weight:600;font-size:clamp(1rem,1.6vw,1.2rem);margin-top:1.1rem}
.hero p.d{max-width:56ch;margin-top:1rem;font-size:1.02rem;color:rgba(255,255,255,.88)}
.hero .cta-row{margin-top:1.8rem;display:flex;gap:.8rem;flex-wrap:wrap}
.hero .links{position:absolute;right:var(--pad);bottom:74px;z-index:2;display:flex;gap:.4rem;flex-wrap:wrap}
.hero .links a{background:#fff;color:var(--blue);font-family:var(--head);font-weight:600;font-size:.74rem;padding:.35rem .7rem;border-radius:2px}
.hero .links a:hover{background:var(--blue);color:#fff}
.hero .links a.cur{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
@media (max-width:900px){.hero{flex-wrap:wrap;align-content:center}.hero .links{position:static;width:100%;padding:0 var(--pad) 1.8rem;margin-top:-1rem}}
.hero.page{min-height:clamp(300px,42vh,460px)}
/* ---------- mosaico de 5 ---------- */
.tiles{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(8px,1.4vw,22px);margin-top:-52px;position:relative;z-index:3}
.tile{position:relative;aspect-ratio:1.4;overflow:hidden;background:#ddd;box-shadow:0 8px 24px rgba(0,0,0,.14)}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tile:hover img{transform:scale(1.06)}
.tile span{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.72));color:#fff;font-family:var(--head);font-weight:600;font-size:.82rem;padding:1.6rem .8rem .7rem}
@media (max-width:900px){.tiles{grid-template-columns:repeat(3,1fr);margin-top:24px}.tile:nth-child(4),.tile:nth-child(5){aspect-ratio:2.1}}
@media (max-width:520px){.tiles{grid-template-columns:repeat(2,1fr)}.tile{aspect-ratio:1.3!important}}
/* ---------- grelhas ---------- */
.split{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(28px,5vw,64px);align-items:center}
.split.r{grid-template-columns:1fr 1.15fr}
@media (max-width:860px){.split,.split.r{grid-template-columns:1fr}}
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,40px)}
.cols2{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(20px,3vw,40px)}
.cols4{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2.5vw,32px)}
@media (max-width:900px){.cols3,.cols4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.cols3,.cols2,.cols4{grid-template-columns:1fr}}
.video{position:relative;aspect-ratio:16/9;background:#000;box-shadow:0 12px 34px rgba(0,0,0,.18)}
.video video{width:100%;height:100%;display:block}
.video .yt{position:absolute;right:10px;bottom:10px;font-size:.72rem;background:rgba(0,0,0,.6);color:#fff;padding:.25rem .6rem;border-radius:3px}
/* serviços (cards) */
.card{background:#fff;text-align:center}
.card img{width:100%;aspect-ratio:1.5;object-fit:cover}
.card h3{margin:1.1rem 0 .5rem}
.card p{color:var(--muted);font-size:.95rem}
.card p b{display:block;color:var(--ink);margin-top:.35rem;font-weight:600}
.card .btn{margin-top:1rem}
/* vantagens (ícones) */
.vant{display:grid;grid-template-columns:repeat(6,1fr);gap:1.4rem 1rem}
.vant div{text-align:center;font-family:var(--head);font-weight:500;font-size:.82rem;line-height:1.3;color:var(--ink)}
.vant img{width:72px;height:72px;margin:0 auto .55rem;object-fit:contain}
@media (max-width:900px){.vant{grid-template-columns:repeat(4,1fr)}}
@media (max-width:560px){.vant{grid-template-columns:repeat(3,1fr)}.vant img{width:56px;height:56px}}
.vant-wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
@media (max-width:900px){.vant-wrap{grid-template-columns:1fr}}
.vant-wrap img.foto{width:100%;height:100%;object-fit:cover;min-height:280px}
/* soluções */
.sol{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center;padding:clamp(20px,3vw,36px) 0}
.sol+.sol{border-top:1px solid var(--line)}
.sol img{width:100%;aspect-ratio:1.9;object-fit:cover}
.sol .btn{margin-top:1.1rem}
@media (max-width:820px){.sol{grid-template-columns:1fr}}
/* galeria */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(10px,1.6vw,20px)}
.gal a,.gal figure{position:relative;display:block;aspect-ratio:1;overflow:hidden;background:#e8e8e8}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gal a:hover img,.gal figure:hover img{transform:scale(1.05)}
.gal figcaption,.gal a span{position:absolute;left:0;right:0;bottom:0;padding:1.4rem .8rem .7rem;color:#fff;font-family:var(--head);font-weight:600;font-size:.82rem;background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.7))}
@media (max-width:860px){.gal{grid-template-columns:repeat(3,1fr)}}
@media (max-width:540px){.gal{grid-template-columns:repeat(2,1fr)}}
.gal.g3{grid-template-columns:repeat(3,1fr)}
@media (max-width:540px){.gal.g3{grid-template-columns:repeat(2,1fr)}}
/* certificações */
.certs{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:clamp(18px,3vw,44px)}
.certs img{height:64px;width:auto;filter:grayscale(1);opacity:.75;transition:.2s}
.certs img:hover{filter:none;opacity:1}
/* lista de ícones (SATE) */
.iconlist{display:grid;grid-template-columns:repeat(5,1fr);gap:1.4rem}
.iconlist div{text-align:center}
.iconlist img{width:84px;height:84px;margin:0 auto .6rem}
.iconlist h4{color:var(--blue);margin-bottom:.3rem}
.iconlist p{font-size:.9rem;color:var(--muted)}
@media (max-width:900px){.iconlist{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.iconlist{grid-template-columns:repeat(2,1fr)}}
/* lista de vantagens (checks) */
.checks{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:.55rem 1.6rem}
.checks li{position:relative;padding-left:1.6rem;font-family:var(--head);font-weight:500;font-size:.92rem}
.checks li::before{content:"";position:absolute;left:0;top:.42em;width:.85em;height:.85em;border-radius:50%;background:var(--blue);mask:url("data:image/svg+xml;utf8,") center/contain no-repeat;-webkit-mask:url("data:image/svg+xml;utf8,") center/contain no-repeat}
.checks.one{grid-template-columns:1fr}
@media (max-width:600px){.checks{grid-template-columns:1fr}}
/* aplicações (cards com imagem) */
.apl{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(12px,2vw,24px)}
.apl article{background:#fff;border:1px solid var(--line)}
.apl img{width:100%;aspect-ratio:1.25;object-fit:cover}
.apl .t{padding:1rem 1rem 1.2rem}
.apl h3{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin-bottom:.25rem}
.apl h4{color:var(--blue);font-size:.98rem;margin-bottom:.5rem}
.apl p{font-size:.86rem;color:var(--muted)}
@media (max-width:1000px){.apl{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.apl{grid-template-columns:1fr 1fr}}
@media (max-width:420px){.apl{grid-template-columns:1fr}}
/* passos */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,3vw,40px);text-align:center}
.steps .n{font-family:var(--head);font-weight:700;font-size:3rem;color:var(--red);line-height:1}
.steps h3{margin:.4rem 0 .5rem}
.steps p{font-size:.92rem;color:var(--muted)}
@media (max-width:640px){.steps{grid-template-columns:1fr}}
/* tabela comparativa */
.cmp{width:100%;border-collapse:collapse;font-size:.95rem}
.cmp th,.cmp td{padding:.7rem .9rem;border-bottom:1px solid var(--line);text-align:left}
.cmp th{font-family:var(--head);font-weight:600;color:var(--blue);background:var(--bg-2)}
.cmp td:first-child{font-weight:600}
/* bloco destaque */
.callout{background:var(--blue);color:#fff;padding:clamp(28px,4vw,48px);display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
.callout h3{color:#fff;font-size:clamp(1.15rem,2vw,1.5rem);max-width:34ch}
.callout p{color:rgba(255,255,255,.85);margin-top:.3rem;max-width:60ch}
/* faixa "mais de 30 anos" */
.years{text-align:center}
.years h2{margin-bottom:2rem}
/* ---------- formulários ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:1rem 1.2rem}
.form .full{grid-column:1/-1}
.form label{display:block;font-family:var(--head);font-weight:600;font-size:.78rem;color:var(--ink);margin-bottom:.3rem}
.form input,.form select,.form textarea{width:100%;font:inherit;font-size:.95rem;padding:.7rem .85rem;border:1px solid #cfd5da;border-radius:3px;background:#fff;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--blue);outline-offset:0;border-color:var(--blue)}
.form textarea{min-height:130px;resize:vertical}
.form fieldset{border:0;grid-column:1/-1;padding:0}
.form fieldset legend{font-family:var(--head);font-weight:600;font-size:.9rem;color:var(--blue);margin:.6rem 0 .4rem}
.form .radios{display:flex;gap:1.2rem;flex-wrap:wrap;font-size:.92rem}
.form .radios label{display:inline-flex;align-items:center;gap:.4rem;font-weight:400;font-family:var(--body);font-size:.92rem;margin:0}
.form .radios input{width:auto}
.form .chk{display:flex;gap:.55rem;align-items:flex-start;font-size:.85rem;color:var(--muted)}
.form .chk input{width:auto;margin-top:.3rem}
.form .hp{position:absolute;left:-9999px}
.form .msg{grid-column:1/-1;font-size:.92rem;min-height:1.4em}
.form .msg.ok{color:#1f7a3a}.form .msg.err{color:var(--red)}
.form small.note{grid-column:1/-1;font-size:.8rem;color:var(--muted)}
@media (max-width:640px){.form{grid-template-columns:1fr}}
.formbox{background:#fff;border:1px solid var(--line);padding:clamp(20px,3vw,36px);position:relative}
/* contactos */
.addr h3{margin-bottom:.4rem}
.addr p{font-size:.95rem}
.addr .big{font-family:var(--head);font-weight:600;font-size:1.05rem;color:var(--blue)}
.map{aspect-ratio:16/9;border:0;width:100%;background:#eee}
/* downloads */
.dl{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.dl a{display:flex;gap:.9rem;align-items:center;padding:1rem 1.1rem;border:1px solid var(--line);background:#fff;transition:.2s}
.dl a:hover{border-color:var(--blue);box-shadow:0 6px 18px rgba(0,0,0,.06)}
.dl .ic{width:40px;height:48px;flex:none;background:var(--red);color:#fff;font-family:var(--head);font-weight:700;font-size:.62rem;display:flex;align-items:flex-end;justify-content:center;padding-bottom:.35rem;border-radius:3px}
.dl b{display:block;font-family:var(--head);font-size:.9rem;color:var(--blue)}
.dl small{color:var(--muted);font-size:.78rem}
@media (max-width:800px){.dl{grid-template-columns:1fr}}
/* FAQ */
details{border-bottom:1px solid var(--line);padding:.9rem 0}
details summary{cursor:pointer;font-family:var(--head);font-weight:600;color:var(--blue);list-style:none;display:flex;justify-content:space-between;gap:1rem}
details summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--red)}
details[open] summary::after{content:"–"}
details p{margin-top:.6rem;font-size:.95rem}
/* ---------- rodapé ---------- */
.foot{background:var(--dark);color:#cfcfcf;font-size:.9rem;padding:clamp(40px,6vw,70px) 0 0}
.foot .grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:clamp(24px,4vw,56px)}
.foot h4{color:#fff;font-family:var(--head);font-size:1rem;margin-bottom:1rem}
.foot .logo img{height:88px;width:auto;margin-bottom:1rem}
.foot ul{list-style:none}
.foot li{padding:.42rem 0;border-bottom:1px solid #3a3a3a}
.foot li a:hover{color:#fff}
.foot p{margin-top:.6rem}
.foot .soc{display:flex;gap:.5rem;margin-top:1rem}
.foot .soc a{width:30px;height:30px;border-radius:50%;background:#3b3b3b;display:inline-flex;align-items:center;justify-content:center}
.foot .soc svg{width:14px;height:14px;fill:#fff}
.foot .bottom{border-top:1px solid #444;margin-top:2.4rem;padding:1.2rem 0;font-size:.8rem;color:#9b9b9b;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.foot .bottom a:hover{color:#fff}
.foot .bottom .lng a{font-weight:700;color:#fff;margin-left:.4rem}
@media (max-width:900px){.foot .grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.foot .grid{grid-template-columns:1fr}}
/* miudezas */
.prose{max-width:820px}
.prose h2{margin:2rem 0 .8rem}
.prose h3{margin:1.4rem 0 .5rem}
.prose ul{padding-left:1.2rem}
.prose li{margin:.3rem 0}
.crumb{font-size:.78rem;color:rgba(255,255,255,.75);font-family:var(--head);font-weight:500;margin-bottom:.8rem}
.crumb a:hover{color:#fff}
.nota{font-size:.85rem;color:var(--muted);border-left:3px solid var(--red);padding-left:.9rem}
.rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}
.totop{position:fixed;right:18px;bottom:18px;width:42px;height:42px;border-radius:3px;background:var(--dark);color:#fff;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:.25s;z-index:90;font-size:1.2rem}
.totop.show{opacity:.9;pointer-events:auto}